Academic literature on the topic 'Waveguide polarizer'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Waveguide polarizer.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Waveguide polarizer"
1
Piltyay, S. І., А. V. Bulashenko, А. V. Polishchuk, and О. V. Bulashenko. "Microwave waveguide polarizer for satellite communication antennas with circular polarization." Kosmìčna nauka ì tehnologìâ 28, no. 3 (July 18, 2022): 43–61. http://dx.doi.org/10.15407/knit2022.03.043.
Full textAbstract:
The volumes of information transmitted in modern satellite telecommunication systems are constantly increasing. Antennas with signal polarization processing, which is performed by polarizers, are the fundamental elements of such systems. Therefore, the development of methods for the analysis of new polarizers is an important problem. From a technological point of view, polarizers based on waveguides with irises are the simplest. Analysis and optimization of electromagnetic characteristics of a polarizer based on a square waveguide with irises are the goals of the presented research. To solve this optimization problem, we have created a new mathematical model, which allows investigating the influence of the design parameters of the polarizer on its electromagnetic characteristics. A mathematical model of the waveguide polarizer with irises was created by the method of decomposition using wave transmission and scattering matrices. Besides, the new mathematical model takes into account the thickness of the irises using their equivalent T- and П-shaped substitution circuits. The general wave scattering matrix is the basis of a new mathematical model of a waveguide polarizer. This matrix was determined using the theory of microwave circuits. The main characteristics of the waveguide polarizer were determined through the elements of this matrix. Here, we perform the optimization of the polarizer characteristics in the Ku-band 10.7–12.8 GHz. The developed new mathematical model of a waveguide polarizer with irises makes it possible to take into account the heights of the irises, distances between them and their thickness. The new mathematical model determines the electromagnetic characteristics of the polarizer in a simpler and faster way compared to the finite integration technique, which is often used for the analysis of microwave devices for various purposes
2
Xiao, Jun, Jin Tian, Tongyu Ding, Hongmei Li, and Qiubo Ye. "Broadband Circularly Polarized Conical Corrugated Horn Antenna Using a Dielectric Circular Polarizer." Micromachines 13, no. 12 (December 3, 2022): 2138. http://dx.doi.org/10.3390/mi13122138.
Full textAbstract:
In this paper, a broadband left-handed circularly polarized (LHCP) corrugated horn antenna using a dielectric circular polarizer is proposed. Circularly polarized (CP) waves are generated by inserting an improved dovetail-shaped dielectric plate into the circular waveguide. Compared with the traditional dovetail-shaped circular polarizer, the proposed improved dovetail-shaped circular polarizer has a wider impedance bandwidth and 3 dB axial ratio bandwidth. A substrate-integrated waveguide (SIW) structure is designed as a wall to eliminate the influence of fixed grooves on the circular polarizer. The simulated reflection coefficient of the dielectric plate circular polarizer is less than −20 dB in the frequency band from 17.57 to 33.25 GHz. Then, a conical corrugated horn antenna with five corrugations and a four-level metal stepped rectangular-circular waveguide converter are designed and optimized. The simulated −10 dB impedance and 3 dB axial ratio (AR) bandwidths of the circularly polarized horn antenna integrated with the polarizer are 61% (17.1–32.8 GHz) and 60.9% (17.76–33.32 GHz), respectively. The simulated peak gain is 17.34 dBic. The measured −10 dB impedance is 52.7% (17.2–27.5 GHz).
3
Kazanskiy, Nikolai Lvovich, and Muhammad Ali Butt. "One-dimensional photonic crystal waveguide based on SOI platform for transverse magnetic polarization-maintaining devices." Photonics Letters of Poland 12, no. 3 (September 30, 2020): 85. http://dx.doi.org/10.4302/plp.v12i3.1044.
Full textAbstract:
In this letter, a TM-polarization C-band pass one-dimensional photonic crystal strip waveguide (1D-PCSW) is presented. The waveguide structure is based on a silicon-on-insulator platform which is easy to realize using standard CMOS technology. The numerical study is conducted via 3D-finite element method (FEM). The transmittance and polarization extinction ratio (PER) is enhanced by optimizing the geometric parameters of the device. As a result, a TM polarized light can travel in the waveguide with ~2 dB loss for all C-band telecommunication wavelength window whereas the TE polarized light suffers a high transmission loss of >30 dB. As a result, a PER of ~28.5 dB can be obtained for the whole C-band wavelengths range. The total length of the proposed device is around 8.4 µm long including 1 µm silicon strip waveguide segment on both ends. Based on our study presented in this paper, several photonic devices can be realized where strict polarization filtering is required. Full Text: PDF ReferencesB. Wang, S. Blaize, R.S-Montiel, "Nanoscale plasmonic TM-pass polarizer integrated on silicon photonics", Nanoscale, 11, 20685 (2019). CrossRef D. Dai, J.E. Bowers, "Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects", Nanophotonics, 3, 283 (2014). CrossRef M.A. Butt, S.N. Khonina, N.L. Kazanskiy, "Optical elements based on silicon photonics", Computer Optics, 43, 1079 (2019). CrossRef M.A. Butt, S.N. Khonina, N.L. Kazanskiy, "Compact design of a polarization beam splitter based on silicon-on-insulator platform", Laser Physics, 28, 116202 (2018). CrossRef M.A. Butt, S.N. Khonina, N.L. Kazanskiy, "A T-shaped 1 × 8 balanced optical power splitter based on 90° bend asymmetric vertical slot waveguides", Laser Physics, 29, 046207 (2019). CrossRef Q. Wang, S.-T. Ho, "Ultracompact TM-Pass Silicon Nanophotonic Waveguide Polarizer and Design", IEEE Photonics J., 2, 49 (2010). CrossRef C.-H. Chen, L. Pang, C.-H. Tsai, U. Levy, Y. Fainman, "Compact and integrated TM-pass waveguide polarizer", Opt. Express, 13, 5347 (2005). CrossRef S. Yuan, Y. Wang, Q. Huang, J. Xia, J. Yu, "Ultracompact TM-pass/TE-reflected integrated polarizer based on a hybrid plasmonic waveguide for silicon photonics", in 11th International Conference on Group IV Photonics (GFP) (IEEE, 2014), pp. 183-184. CrossRef X. Guan, P. Chen, S. Chen, P. Xu, Y. Shi, D. Dai, "Low-loss ultracompact transverse-magnetic-pass polarizer with a silicon subwavelength grating waveguide", Opt. Lett., 39, 4514 (2014). CrossRef A.E.- S. Abd-Elkader, M.F. O. Hameed, N.F. Areed, H.E.-D. Mostafa, and S.S. Obayya, "Ultracompact AZO-based TE-pass and TM-pass hybrid plasmonic polarizers", J.Opt. Soc. Am. B., 36, 652 (2019). CrossRef J. Li et al., "Photonic Crystal Waveguide Electro-Optic Modulator With a Wide Bandwidth", Journal of Lightwave Technology, 31, 1601-1607 (2013). CrossRef N. Skivesen et al., "Photonic-crystal waveguide biosensor", Optics Express, 15, 3169-3176 (2007). CrossRef S. Lin, J. Hu, L. Kimerling, K. Crozier, "Design of nanoslotted photonic crystal waveguide cavities for single nanoparticle trapping and detection", Optics Letters, 34, 3451-3453 (2009). CrossRef T. Liu, A.R. Zakharian, M. Fallahi, J.V. Moloney, M. Mansuripur, "Design of a compact photonic-crystal-based polarizing beam splitter", IEEE Photonics Technology Letters, 17, 1435-1437 (2005). CrossRef R. K. Sinha, Y. Kalra, "Design of optical waveguide polarizer using photonic band gap", Optics Express, 14, 10790 (2006). CrossRef
4
Piltyay, S. "Square Waveguide Polarizer with Diagonally Located Irises for Ka-Band Antenna Systems." Advanced Electromagnetics 10, no. 3 (October 26, 2021): 31–38. http://dx.doi.org/10.7716/aem.v10i3.1780.
Full textAbstract:
This article presents the results of development and optimization of a new square waveguide polarizer with diagonally located square irises. The application of suggested geometrical modification of irises form and location instead of a standard wall-to-wall irises configuration allows to exclude 45-degree twists between wideband waveguide polarizer and orthomode transducer of a dual-polarized antenna feed system. In addition, a waveguide polarizer and polarization duplexer can be manufactured by milling technology as two single details, which makes the proposed engineering solution reliable, simple for simulation, development and application. Suggested new polarizer design was developed for the satellite operating Ka-band. It contains 12 irises, which are symmetrically located in the diagonal corners of a square waveguide. Obtained optimal polarization converter provides excellent matching and polarization performance. The maximum level of VSWR is less than 1.04 for both orthogonal polarizations. Values of cross-polarization discrimination are higher than 32 dB in the operating Ka-band. Developed square waveguide polarizer with diagonally located irises can be applied in modern wideband satellite antennas.
5
Fantauzzi, S., L. Valletti, and F. Di Paolo. "Virtual Prototype of Innovative Ka-Band Power Amplifier Based on Waveguide Polarizer." Advanced Electromagnetics 9, no. 2 (October 14, 2020): 60–65. http://dx.doi.org/10.7716/aem.v9i2.1497.
Full textAbstract:
This paper outlines an innovative approach to design a spatial power-combining structure based on waveguide polarizers. It presents the 3D CAD model of the new structure with the transversal probes and considerations in positioning and optimization of them. Exploiting the transformation of the dominant input mode TE10 into an elliptically polarized wave, provided by the polarizer, it has been possible to achieve a division of power by eight, completely carried out in space. With the insertion of the transversal probes made by microstrips, the RF signal can be sent to the MMIC solid state power amplifiers, and then recombined in the output section. Thanks to the large number of power divisions made in the waveguide section, the insertion loss of the power divider/combiner is less than 0.5 dB across the 32-34 GHz band, achieving a great power density as well. At the Author’s best knowledge, this is the first work where a waveguide polarizer is used in Spatial Power Combining technology.
6
Piltyay, S., A. Bulashenko, V. Shuliak, and O. Bulashenko. "Electromagnetic Simulation of New Tunable Guide Polarizers with Diaphragms and Pins." Advanced Electromagnetics 10, no. 3 (October 26, 2021): 24–30. http://dx.doi.org/10.7716/aem.v10i3.1737.
Full textAbstract:
In this article we present the results of mathematical simulation, development and optimization of a waveguide polarizer with a diaphragm and pins. A mathematical model was developed using the proposed approach on the example of a waveguide polarizer with one diaphragm and two pins. The diaphragm and pins were modeled as inductive or capacitive elements for two types of linear polarization of the fundamental modes. The applied model uses a wave scattering matrix. The total matrix of a polarizer was obtained using wave matrices of transmission of individual elements of the device structure. Using the elements of the common S-parameters the electromagnetic characteristics of the device, which is considered, were obtained. To check the performance of the developed mathematical model, it was simulated in a software using the finite element technique in the frequency domain. The designed structure of the polarizer is adjustable due to mechanical change in the length of the pins. The developed waveguide polarizer with one diaphragm and two pins provides a reflection coefficient of less than 0.36 and a transmission coefficient of more than 0.93 for two types of polarizations. Therefore, a new theoretical method was developed in the article for analysis of scattering matrix elements of a waveguide polarizer with diaphragms and pins. It can also be used for the development of new tunable waveguide polarizers, filters and other components with diaphragms and pins.
7
Wang, Binbin, Sylvain Blaize, and Rafael Salas-Montiel. "Nanoscale plasmonic TM-pass polarizer integrated on silicon photonics." Nanoscale 11, no. 43 (2019): 20685–92. http://dx.doi.org/10.1039/c9nr06948h.
Full text
8
Fujita, J., M. Levy, R. Scarmozzino, R. M. Osgood, L. Eldada, and J. T. Yardley. "Integrated multistack waveguide polarizer." IEEE Photonics Technology Letters 10, no. 1 (January 1998): 93–95. http://dx.doi.org/10.1109/68.651119.
Full text
9
Piltyay, S., A. Bulashenko, I. Fesyuk, and O. Bulashenko. "Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms." Advanced Electromagnetics 10, no. 2 (July 31, 2021): 44–55. http://dx.doi.org/10.7716/aem.v10i2.1713.
Full textAbstract:
In this article we carry out the comparative analysis of new compact satellite polarisers based on a square guide with diaphragms. The main electromagnetic parameters of the developed microwave guide devices with various amount of diaphragms were obtained within the satellite frequency interval from 10.7 GHz to 12.75 GHz. Waveguide polarization converters with different amount of diaphragms from 2 to 5 have been designed and optimized. The main parameters of the presented polarizer were calculated applying the numerical method of finite integration in the frequency domain. Optimization of the electromagnetic parameters of the developed waveguide devices was carried out using the software CST Microwave Studio. As a result, sizes of the device designs have been optimized for the provision of improved polarization and phase parameters. The performed analysis showed that a waveguide polarizer with five diaphragms has the best electromagnetic parameters. The developed compact polarizer with five diaphragms based on a square guide provides a minimum deviation of the output phase difference from 90 degrees and high level of isolation between linear polarization over the entire operating frequency range. Presented in the article compact waveguide polarization converters can be applied in satellite systems, which require efficient polarization separation of signals.
10
Lin, Baizhu, Tianhang Lian, Shijie Sun, Mu Zhu, Yuanhua Che, Xueqing Sun, Xibin Wang, and Daming Zhang. "Ultra-Broadband and Compact TM-Pass Polarizer Based on Graphene-Buried Polymer Waveguide." Polymers 14, no. 7 (April 6, 2022): 1481. http://dx.doi.org/10.3390/polym14071481.
Full textAbstract:
We report an ultra-broadband and compact TM-pass polarizer based on graphene-buried polymer waveguides. The characteristic parameters of the polarizer were carefully designed and optimized. The standard microfabrication processes were employed to fabricate the device. The presented polarizers exhibit high polarization-dependent transmission imposing a TE mode cutoff while leaving the TM mode almost unaffected. We experimentally demonstrated the polarizer that has an ultra-high extinction ratio of more than 22.9 dB and 41.9 dB for the monolayer graphene film placed on the surface of core layer and buried in the center of core layer, respectively, and as low insertion loss as ~4.0 dB for the TM mode with the bandwidth over 110 nm. The presented polarizer has the advantages of high extinction ratio, ultra-broadband, low cost, and easy integration with other polymer-based planar lightwave devices.
Dissertations / Theses on the topic "Waveguide polarizer"
1
Klaren, Jonathan J. (Jonathan James). "Mode-matching analysis for discontinuities in waveguide and application to a waveguide circular polarizer." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/36466.
Full textAbstract:
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.Includes bibliographical references (leaves 70-71).
by Jonathan J. Klaren.
M.S.
2
FAROOQUI, MUHAMMAD ZUNNOORAIN. "Analysis and Design of Microwave and Millimeter-wave Passive Devices for Scientific Instrumentation." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2541493.
Full textAbstract:
In the recent astrophysical experiments i.e. QUIET, QUIJOTE, STRIP-LSPE, arrays of polarimeters are used in order to measure the linearly polarized component of the Cosmic Microwave Background Radiation (CMBR). Since the signal of interest is very faint, the sensitivity of the scientific instrumentation should be very high. This goal can be achieved by accommodating a large number of high-performance polarimeters in the focal plane of the antenna. In this perspective, a novel layout of Ortho-Mode-Transducer (OMT) and polarizer, which are key passive waveguide elements of dual-circular polarization polarimeters, have been designed. The polarizer is based on a Dual-Fold-Stub (DFS) design having 20% bandwidth centered at 94.5GHz, whereas the broadband OMT exploits a turnstile junction with 30% bandwidth centered at 94 GHz. The components are realized using the multi-layer technology, where each metallic plate is manufactured by wire spark erosion technique. Using this design methodology, several identical devices can be manufactured in a single machining process. The exploitation of multi-layer technology in conjunction with wire spark erosion technique provides high level of manufacturing repeatability and accuracy along with low cost, making this solution well suitable for the realization of polarimetric arrays consisting of tens/hundreds of chains.
The propriety SEM (Spectral Element Method) tool of IEIIT-CNR and commercial EM (Electromagnetic) tools (CST-MWS & HFSS) have been exploited in an effective manner to achieve the required performances. In order to integrate MATLAB with EM tools, COM EM Automation Tool (COM-EM-AT) has been developed and exploited in various manner to attain the final design. The simulation acceleration through distributed computing have also been employed efficiently for tolerance analysis using the SEM tool.
3
Mrnka, Michal. "Ozařovač do bezodrazové anténní komory s dvojí kruhovou polarizací." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219983.
Full textAbstract:
The purpose of the thesis is to design transmitting antenna based on septum polarizer solution for indoor measurement range. The antenna is considered for both senses of circular polarization. The design is divided into three main sections. First section is devoted to analysis and selection of a suitable waveguide. Ridge waveguide as a crucial part of a septum polarizer is mentioned in this section. Second part is the most critical; here the septum polarizer is analyzed and based on simple procedure also designed. Two suitable horn apertures are then developed as a part of the third section. Individual transmitting antenna parts are assembled together into one model and simulated with excellent results for axial ratio, cross-polarization discrimination, return loss and isolation between ports.
4
Lecián, Petr. "Ozařovač parabolické antény v pásmu X." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218634.
Full textAbstract:
The work addresses the unusual proposal feed for parabolic antenna with circular polariza-tion signal. This is a modified waveguide feed, waveguide polarizer with a septum. Contemporary RHCP and LHCP wave occurs in several applications of microwave commu-nication and measurement system. From this point of view the septum polarizer can be useful. The septum polarizer is a four-port waveguide device. The square waveguide at one end con-stitutes two ports because it can support two orthogonal modes. A stepped septum divides the square waveguide into two standard rectangular waveguides sharing a common broad-wall. The size of the septum as well as two versions of the waveguides excitation were analyzed and are described in this paper. Ansoft HFSS is software for design and simulation of feed. This software can visualize not only the specified model feed, but also the course of electromagnetic field in feed and over time.
5
Dogan, Doganay. "Dual Polarized Slotted Waveguide Array Antenna." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613016/index.pdf.
Full textAbstract:
An X band dual polarized slotted waveguide antenna array is designed with very high polarization purity for both horizontal and vertical polarizations. Horizontally polarized radiators are designed using a novel non-inclined edge wall slots whereas the vertically polarized slots are implemented using broad wall slots opened on baffled single ridge rectangular waveguides. Electromagnetic model based on an infinite array unit cell approach is introduced to characterize the slots used in the array. 20 by 10 element planar array of these slots is manufactured and radiation fields are measured. The measurement results of this array are in very good accordance with the simulation results. The dual polarized antenna possesses a low sidelobe level of -35 dB and is able to scan a sector of ±35 degrees in elevation. It also has a usable bandwidth of 600 MHz.
6
Dvořák, Petr. "Štěrbinová anténa." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-221052.
Full textAbstract:
This thesis discusses Slot antennas that are based in gap waveguide technology, which allows them to work with high frequency signals. It contains theoretical findings about antennas and waveguides, which are later used in the design. The practical section of this thesis concentrates on designing a specific gap waveguide for 10 and 24 GHz frequencies, starting with modeling and parameter optimalization. This gap waveguide is then used as a base for slot antenna design. The final antenna is designed for frequency of 10 GHz, for both linear and right-handed circular polarizations. With right-handed circular polarization, the achieved band was approximately 1.41 GHz, while the gain was 7,6 dB.
7
Ferrando, Rocher Miguel. "Gap Waveguide Array Antennas and Corporate-Feed Networks for mm-Wave band Applications." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/115933.
Full textAbstract:
[ES] Esta tesis aborda temas de especial interés en el diseño de antenas en la banda de milimétricas. Hui en dia, implementar components passius per a operar en la banda de mil·limètriques i assegurar el contacte i l'alineament metàl·lic apropiat entre peces, resulta un desafiament complex. Habitualment les línies de transmissió i les guies d'ones metàl·liques són les solucions adoptades, però en el primer cas es presenten pèrdues al ser solucions impreses i en el segon cas un mal contacte metàl·lic comporta fugues de camp. Per tant, s'estan explorant nous conceptes que solucionen estos problemes.
La tecnología Gap Waveguide (GW) resulta adecuada ya que no requiere de contactos metálicos. En los últimos años han surgido las agrupaciones de antenas basadas en la tecnología Gap Waveguide y son un candidato prometedor para satisfacer algunas de las necesidades mencionadas. La tecnología GW ha demostrado ser atractiva para dispositivos de milimétricas porque permite redes de distribución completamente metálicas de una manera más simple que las guías de onda convencionales. Por tanto, estas redes tienen muy bajas pérdidas pero además son simples de fabricar. Esto es posible gracias a la capacidad de las GW de confinar de forma segura la propagación de ondas electromagnéticas por medio de una estructura que no requiere de contacto.
Durante la última década, se han hecho avances importantes en la tecnología GW y en la literatura se pueden encontrar un buen número de antenas basadas en GW. Esta tesis va un paso más allá en la contribución de este tipo de antenas. Aquí, no solo se presentan antenas con polarización lineal, como suelen ser las desarrolladas hasta ahora, sino también con polarización dual, circular y duales en banda. Estas aportaciones son especialmente atractivas dentro del campo de las comunicaciones por satélite en movimiento (SATCOM on-the-move). Además, se han explorado nuevas redes de distribución que permiten antenas planas más compactas, más ligeras.[CAT] Esta tesi aborda temes d'especial interés en el disseny d'antenes en la banda de mil.limètriques. Hui en dia, implementar components passius per a operar en longituds d'onda tan xicotetes (de l'orde de mil.límetres) i assegurar el contacte i l'alineament metàl-lic apropiat entre peces, resulta un desafiament complex. Habitualment les línies de transmissió i les guia d'ones metàl.liques són les solucions adoptades, però en el primer cas es presenten pèrdues al ser solucions impreses i en el segon cas un mal contacte metàl.lic comporta fugues de camp. Per tant, s'estan explorant nous conceptes que solucionen estos problemes. La tecnologia Gap Waveguide (GW) resulta adequada ja que no requerix de contactes metàl.lics. En els últims anys han sorgit les agrupacions d'antena basades en la tecnologia Gap Waveguide i són un candidat prometedor per a satisfer algunes de les necessitats mencionades. La tecnologia GW ha demostrat ser atractiva per a dispositius de banda d'ones mil-limètriques perquè permet xarxes de distribució completament metàl-liques d'una manera més simple que les guies d'onda convencionals. Per tant estes xarxes tenen baixes pèrdues peró, a més, són simples de fabricar. Açò és possible gràcies a la capacitat de les GW de confinar de forma segura la propagació d'ones electromagnètiques per mitjà d'una estructura que no requerix de contacte. Durant l'última dècada, s'han fet avanços importants en la tecnologia GW i en la literatura es poden trobar un bon nombre d'antenes basades en GW. Esta tesi va un pas més enllà en la contribució d'este tipus d'antenes. Ací, no sols es presenten antenes amb polarització lineal com solen ser les desenrotllades fins ara, sinó també antenes amb polarització dual, circular i inclús antenes duals en banda. Estes aportacions són especialment atractives dins del camp de les comunicacions per satèl.lit en moviment (SATCOM on-the-move). A més també s'han explorat noves xarxes de distribució que permeten obtindre antenes planes més compactes, més lleugeres.
[EN] This thesis deals with topics of special interest regarding the design of antennas at the mm-wave band. Today, implementing passive components that operate in the mm-wave band and to ensure the appropriate metallic contact is challenging. Commonly, conventional planar transmission lines and hollow metallic waveguides are the usual solutions but they present high losses or they do not ensure a good metallic contact. So, new concepts must be explored. Gap Waveguides (GWs), result suitably since they do not require metallic contact for shielding. Antenna arrays in Gap Waveguide Technology (GW) emerges as one promising candidate to naturally meet some of the mentioned needs. GW technology has demonstrated to be effective for mm-wave band devices because it enables full-metal distribution networks in a much simpler way than conventional waveguides. Very low distribution losses can be achieved preserving at the same time the assembly simplicity of multilayer microstrip feeding networks. This unique feature is a consequence of gap waveguides ability to safely confine the electromagnetic wave propagation through a contactless structure. During the last decade, there have been important advances in GW technology and a good number of gap waveguide-based arrays can be found in the literature. This thesis goes a step further in the contribution to mm-wave gap waveguide antennas. Here, antennas with linear polarization as well as circular or dual polarization are proposed. Dual band antennas has also been explored. These contributions have been carried out with a focus on satellite communications on-the-move. In addition, new distribution networks have also been explored to obtain more compact, low-profile and lighter antennas.
Ferrando Rocher, M. (2018). Gap Waveguide Array Antennas and Corporate-Feed Networks for mm-Wave band Applications [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/115933
TESIS
8
Gromovyi, Maksym. "Génération de seconde harmonique dans des guides d’ondes à base de nitrure d’éléments III." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4018/document.
Full textAbstract:
Ce travail est consacré à l’étude de la génération de deuxième harmonique (SHG) dans des guides d’ondes de Nitrure d’éléments III. Un des buts principaux de ce travail, était d’identifier les origines des pertes à la propagation dans les guides d’ondes GaN et de fortement les réduire dans des guides présentant des possibilités d’accord de phase, pour améliorer l’efficacité de la SHG. Nous avons fait un progrès très important dans cette direction et avons fabriqué des guides d’ondes plans de GaN épitaxiés sur des substrats de saphir avec des pertes à la propagation inférieure à 1dB/cm dans le visible. Dans ces guides d’ondes à faibles pertes, il a été possible d’obtenir un processus de SHG efficace en utilisant l’accord de phase modal. Nous avons obtenu 2% de conversion entre une pompe dans le proche infrarouge et un harmonique dans le visible, ce qui correspond à une efficacité de conversion normalisée de 0,15%W-1cm-2. Les pertes à la propagation et l’efficacité de conversion obtenues sont les meilleurs résultats rapportés jusqu'ici pour des guides d’ondes plan en GaN. De plus, nous avons étudié des guides d’ondes de Nitrure d’éléments III épitaxiés sur des substrats de Si, dont la fabrication demande de relever plusieurs défis, mais qui ouvrent des possibilités intéressantes. La première est la possibilité de graver sélectivement les nitrures ou le Si, ce que nous avons utilisé pour développer une plate-forme permettant la fabrication d’objets suspendus comme des micro-disques, des guides d’ondes et des micro-disques couplés à un guide d’ondes. Cette plate-forme a permis la première démonstration de SHG doublement résonante en utilisant un accord de phase modal entre des modes de galerie du micro-disque. Bien que toutes les expériences que nous avons exécutées aient été faites dans une région spectrale limitée, l’étude numérique présentée dans ce manuscrit démontre la grande adaptabilité de cette plate-forme basée sur la possibilité de faire varier la composition des guides d’ondes AlGaN de GaN pur à AlN pur. La deuxième possibilité liée à l’épitaxie de nitrures d’éléments III sur Si, est qu'en la combinant avec des techniques de report, on peut jouer avec des guides nitrures d’éléments III sur SiO2. Nos résultats numériques révèlent le potentiel complet des guides d’ondes d’AlGaN en démontrant qu’en utilisant différentes combinaisons de mode et en jouant sur la composition et la géométrie des guides d’ondes, il est possible d’obtenir un signal de deuxième harmonique dans l’ultra-violet, le visible ou le proche-infrarouges. Ces résultats montrent aussi, que pour améliorer encore l’efficacité de la SHG, on doit fabriquer des guides d’ondes canaux présentant un isolement optique parfait du substrat de Si et une inversion de polarité précisément placée dans le cœur du guide d’ondes. Dans une telle structure on pourrait profiter simultanément du confinement de la puissance, de l’accord de phase modal et d’un recouvrement optimisé des modes en interaction. Dans ce cas, nos calculs montrent que l’efficacité de conversion pourrait atteindre 100%W-1cm-2. Au cours de ce travail nous avons pu tester des guides canaux et des guides présentant une inversion de polarité dans le cœur. La qualité des flancs des guides canaux s’est avérée être tout à fait encourageante, mais leur performance non linéaire sont restées très limitées, principalement à cause de fortes pertes à la propagation dues au couplage avec le substrat absorbant et à la forte rugosité de surface des couches inversées. Les structures utilisant les techniques de report, n'ont pu être testées car elles ont cassé en cour de fabrication. L'obtention de guides optimisés exige de progresser encore pour réaliser des couches de confinement optique plus épaisses et/ou d’adapter la technique de report à ces matériauxThis work is dedicated to the study of the second harmonic generation (SHG) in III-Nitride waveguides. One of the main goals of this work, was to identify the origins of the propagation losses in GaN waveguides, and to strongly reduce them in waveguides presenting some phase matching possibilities, in order to improve the SHG efficiency. We have made a very important progress in this direction, and fabricated by hetero-epitaxy GaN planar waveguides on sapphire substrates with propagation losses below 1dB/cm in the visible spectral region. These low-loss waveguides were used for the demonstration of an efficient second harmonic generation process using modal phase matching. We obtained 2% of power conversion from the near-infrared to the visible spectral regions with a normalized efficiency of 0.15%W-1cm-2. The obtained propagation losses and conversion efficiency are the best-reported results so far for GaN planar waveguides. In addition, we have studied epitaxial III-nitride waveguides on Si substrates, which are very challenging to fabricate, but opens new interesting opportunities. The first one is the possibility to etch selectively the nitrides or the Si. The selective chemical etching was used to develop a platform allowing the fabrication of suspended objects such as micro-disks, waveguides and micro-disks coupled to a waveguide. This platform has allowed the first demonstration of doubly resonant SHG using phase matching between the whispering gallery modes of a micro-disk. Although all the experiments we performed were done in a limited spectral region, the numerical study presented in this manuscript demonstrates the large adaptability of this platform based on the possibility of varying the composition of AlGaN waveguides from pure GaN to pure AlN. The second opportunity of epitaxial III-nitrides layers on Si is the possibility to combine them with report technologies to obtain III-nitride waveguides on SiO2. Our numerical results reveal the full potential of AlGaN waveguides by demonstrating that using different mode combinations and playing with waveguides composition and geometry, it is possible to obtain a second harmonic signal in the ultraviolet, the visible or the near-infrared spectral regions. These results also demonstrate, that to further improve the SHG efficiency, one has to fabricate ridge waveguides presenting a perfect optical isolation from the Si substrate and a polarity inversion precisely positioned in the core of the waveguide. In these structures one could benefit simultaneously from the power confinement, the modal phase matching and an optimized overlap of the interacting modes. In this case, we calculate that the conversion efficiencies could be as high as 100%W-1cm-2. Both ridge waveguides and polarity inversion were tested in this work. The quality of the ridges was quite encouraging, but their nonlinear performance remained limited mainly because of the high propagation losses due to the coupling with the absorbing substrate and to the roughness of the surface of the epitaxial inverted layers. The structures fabricated using the report technique, haven’t been tested, as they were broken during their fabrication. Getting fully optimized waveguides requires further progresses in realizing thicker optical buffer layers and/or adapting the report technique to these materials
9
Cupal, Miroslav. "Komponenty na bázi vlnovodu integrovaného do textilu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-432454.
Full textAbstract:
Práce je zaměřena na výzkum struktur založených na vlnovodu integrovaném do textilu (TIW). Pozornost je věnována elektrické charakterizaci textilních materiálů (textilní substráty, nitě), které jsou využívány při implementaci antén, rekonfigurovatelných a aktivních obvodů integrovaných do textilu. Práce se zabývá návrhem vícevrstvých přechodů mezi mikropáskovým vedením na konvenčním substrátu a vedeními integrovanými do textilu. Dále je prezentován koncept přepínače integrovaného do textilu. Přepínač je řízen vodivými sloupky, které vytvářejí otevřenou či zavřenou stěnu prostřednictvím stejnosměrně ovládaných PIN diod. Na závěr je formulována metodika návrhu kruhově polarizovaných antén integrovaných do textilu, jež jsou určeny pro práci v ISM pásmech až do 24 GHz. Všechny postupy návrhu byly ověřeny simulacemi a měřeními reálných vzorků, které byly vyrobeny sítotiskem stříbrnou polymerovou pastou. Polovodičové komponenty byly k obvodům přilepeny vodivým stříbrným lepidlem. Komponenty vyrobené sítotiskem byly porovnávány s referenčními strukturami, které byly realizovány pomocí samolepicí měděné fólie.
10
Tseng, Irving, and 曾爾凡. "Miniaturized Planar Transmission Line to Metallic Waveguide Transition and Polarizer." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/86062381978769320699.
Full textAbstract:
碩士國立臺灣科技大學
電子工程系
104
In this discourse, two compact microwave components are proposed, which include the compact and broadband CPW-to-RWG transition using the inductance compensated phase shifter and the compact microstrip-fed CWG polarizer using the corner-truncated patch. The characteristics of each of them are described below. In chapter 2, firstly, a CPW-to-RWG transition using the half-wavelength phase shifter is introduced. The transition has a broadband response in which the frequency range of the -15-dB reflection coefficient covers from 8.05 GHz to 12.18 GHz (FBW = 38.8%), almost encompassing the whole X-band (8.2-12.4 GHz). In order to reduce the size of the transition, the inductance-compensated phase shifter is used to replace the half-wavelength phase shifter, resulting in a compact and broadband CPW-to-RWG transition using the inductance-compensated phase shifter. The size of transition is 5.9×10.16×0.8 mm3 and the frequency range, for which the reflection coefficient is smaller than -15 dB, covers from 8.05 GHz to 12.38 GHz, estimating to be 42.04%. In order to verify the simulation results, two CPW-to-RWG transitions using the inductance-compensated phase shifter are back-to-back connected, fabricated, and measured. The measurement and simulation results are in reasonable agreement, which verifies our design. In chapter 3, firstly, a MSL-to-CWG transition using the rectangular patch is introduced. The rectangular patch is placed 2.68 mm (0.043 λg) away from the short-circuited plane of the CWG port, making the transition very compact. Secondly, a MSL-fed CWG polarizer using the corner-truncated patch is proposed. The proposed polarizer has an axial ratio of 0.002 dB and a phase difference of -90.97° at 9.65 GHz. The reflection coefficient is below -20 dB around the center frequency 9.65 GHz. In additional, the proposed polarizer needs no complex manufacturing process on the waveguide. Moreover, since the polarizer is fed by the microstrip line, it would be easy to integrate with other planar circuits. In order to verify the simulation results, the CWG port of the MSL-fed CWG polarizer using the corner-truncated patch is opened, simulated and measured. The simulation and measurement results are in good agreement.
Books on the topic "Waveguide polarizer"
1
Lee, C. S. G. A simple circular-polarized antenna: Circular waveguide horn coated with lossy magnetic material. Arbana, Ill: Electromagnetics Laboratory, Dept. of Electrical and Computer Engineering, Engineering Experiment Station, University of Illinois at Urbana-Champaign, 1986.
Find full text
2
Lee, C. S. G. A simple circular-polarized antenna: Circular waveguide horn coated with lossy magnetic material. Arbana, Ill: Electromagnetics Laboratory, Dept. of Electrical and Computer Engineering, Engineering Experiment Station, University of Illinois at Urbana-Champaign, 1986.
Find full textBook chapters on the topic "Waveguide polarizer"
1
Eberhard, D., and H. Bülow. "Single Mode Channel Waveguide Polarizer on LiNbO3." In Springer Series in Optical Sciences, 202–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-540-39452-5_38.
Full text
2
Madaan, Divya, Davinder Kaur, V. K. Sharma, and A. Kapoor. "Design and Analysis of Efficient Metal Clad Optical Waveguide Polarizer." In Springer Proceedings in Physics, 257–60. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29096-6_35.
Full text
3
Fitzau, Oliver. "Polarized Fiber Lasers and Amplifiers." In Planar Waveguides and other Confined Geometries, 251–63. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1179-0_11.
Full text
4
Khan, Mohammad Imroz, Avinash Chandra, and Sushrut Das. "A Dual Band, Dual Polarized Slot Antenna Using Coplanar Waveguide." In Advances in Computer, Communication and Control, 95–103. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3122-0_10.
Full text
5
Chandra, Avinash, Kalpesh S. Dakhode, and Hemprasad Yashwant Patil. "A FSS- and Metasurface-Loaded Dual-Polarized High-Gain Waveguide Array." In Lecture Notes in Electrical Engineering, 547–53. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2761-3_48.
Full text
6
Odhekar, Anuja, and Amit A. Deshmukh. "Coplanar Waveguide Fed Modified Helicopter Fan-Shaped Microstrip Antenna for Circularly Polarized Response." In Lecture Notes on Data Engineering and Communications Technologies, 39–48. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-6601-8_5.
Full text
7
Agrawal, Meha, Kapil Saraswat, and Trivesh Kumar. "Wideband Substrate Integrated Waveguide Based Dual-Polarized Antenna for Satellite Applications in Ku-Band." In Lecture Notes in Electrical Engineering, 115–23. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8554-5_12.
Full text
8
Yu, Miao, ZhiQiang Zhang, and JianHua Ren. "Research on Coupling Characters of the Linear Polarized Mode between Two Multi-mode Silica Circular Waveguide." In Advances in Computer Science, Intelligent System and Environment, 577–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23777-5_93.
Full text
9
Bulashenko, Andrew, and Stepan Piltyay. "MODELLING AND OPTIMIZATION OF WAVEGUIDE POLARIZERS WITH THE ACCOUNT OF IRISES THICKNESS." In Integration of traditional and innovation processes of development of modern science. Publishing House “Baltija Publishing”, 2020. http://dx.doi.org/10.30525/978-9934-26-021-6-34.
Full textAbstract:
Today, there is a continuous improvement of modern satellite telecommunication systems caused by the requirements of constantly increasing information volumes. The fundamental elements of such systems are antennas with polarization processing of signals. This processing is mainly performed using microwave waveguide polarizers and orthomode transducers. Therefore, the development and optimization of new waveguide polarizers is a relevant engineering problem. The simplest from the technological point of view are the polarizers based on waveguides with irises. Analysis and optimization of electromagnetic characteristics of a polarizer based on a square waveguide with irises are the goals of the presented research. To solve this optimization problem we have created a new mathematical model, which allows to investigate the influence of the design parameters of the polarizer on its electromagnetic characteristics. A new mathematical model of the polarizer based on square waveguide with irises was created using wave transmission and scattering matrices of the structure elements. Developed mathematical model takes into account the thickness of the irises. A new mathematical model of a waveguide polarizer is based on the general wave scattering matrix. This matrix was calculated using the theory of microwave circuits. The main characteristics of the square waveguide polarizer were expressed through the elements of this matrix. The developed new mathematical model of a square waveguide polarizer with irises takes into account the heights of the irises, the distances between them and their thickness. The new mathematical model is simpler and faster for the determination of the electromagnetic characteristics of the waveguide polarizer compared to the finite integration technique, which is often applied to analyze microwave devices for various purposes. In addition, developed new mathematical model of the waveguide iris polarizer allows to estimate the variations of all required electromagnetic characteristics if the structure parameters deviate from their optimal values. Using the created mathematical model we have carried out the optimization of the polarizer matching and polarization characteristics in the operating satellite Ku-band 10.7–12.8 GHz. Simulated optimum design of the waveguide polarizer provides VSWR for horizontal and vertical polarizations less than 3.26. Optimized differential phase shift is 90° ± 4.2°. Axial ratio of the waveguide iris polarizer is less than 1.43 dB. Corresponding XPD is higher than 21.7 dB.
10
Téllez-Limón, Ricardo, and Rafael Salas-Montiel. "Nanowires Integrated to Optical Waveguides." In Nanowires - Recent Progress. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95689.
Full textAbstract:
Chip-scale integrated optical devices are one of the most developed research subjects in last years. These devices serve as a bridge to overcome size mismatch between diffraction-limited bulk optics and nanoscale photonic devices. They have been employed to develop many on-chip applications, such as integrated light sources, polarizers, optical filters, and even biosensing devices. Among these integrated systems can be found the so-called hybrid photonic-plasmonic devices, structures that integrate plasmonic metamaterials on top of optical waveguides, leading to outstanding physical phenomena. In this contribution, we present a comprehensive study of the design of hybrid photonic-plasmonic systems consisting of periodic arrays of metallic nanowires integrated on top of dielectric waveguides. Based on numerical simulations, we explain the physics of these structures and analyze light coupling between plasmonic resonances in the nanowires and the photonic modes of the waveguides below them. With this chapter we pretend to attract the interest of research community in the development of integrated hybrid photonic-plasmonic devices, especially light interaction between guided photonic modes and plasmonic resonances in metallic nanowires.
Conference papers on the topic "Waveguide polarizer"
1
Yuen, S., J. Chrostowski, and B. Syrett. "Polymer integrated optical polarizer." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tuz3.
Full textAbstract:
There has been an increasing interest in using organic polymers to implement waveguide devices. Organic polymers have low intrinsic losses, and devices that use these materials are easy and inexpensive to fabricate. This paper reports the first polymer integrated optical polarizer built on silicon that uses an antiresonant, reflecting optical-waveguide (ARROW) structure.1 The integrated device consists of a low-index polymer core on top of two interference cladding layers that are deposited on a silicon substrate. Although ARROW structures have low transmission losses for TE polarized light (dB/cm), losses for TM polarized light are large (60 dB/cm), making them excellent integrated optical polarizers. The prototype polymer-rib ARROW polarizer was designed for operation at 820 nm. The first and second interference cladding layers were made up of 0.16 m of Si3N4 and 2 m of SiO2. A commercially available photosensitive polymer, NA 61, was used as the core. A 4 m polymer layer was spin-coated onto the first cladding layer. Rib structures 10 m wide were defined by means of conventional photolithography in the prototype devices. Extinction ratios greater than 40 dB/cm were measured. The performance can be further improved by optimizing the coupling between the source and the rib waveguides.
2
Bloemer, Mark. "Localized surface plasmons for waveguide polarizers." In Integrated Photonics Research. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/ipr.1991.tha6.
Full textAbstract:
Passive polarizers are standard components in bulk and guided-wave optical systems. Guided-wave polarizers include metal/dielectric overlays,1 anisotropic crystals,2 and proton-exchanged waveguides.3 Here we report experimental results of a passive guided-wave polarizer by using surface-plasmon modes localized in small Ag particles.
3
Findakly, Talal, B. Dougfierty, and J. Moen. "Integrated-optic logic gates." In Integrated and Guided Wave Optics. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.thcc15.
Full textAbstract:
The use of integrated optics to perform logic and computation was proposed earlier by Taylor1 based on interconnected directional coupler switches and intensity Mach-Zehnder modulators. We apply the principle of polarization conversion and discrimination in integrated optical format to perform various logic functions. The principal components of the proposed logic gates are a polarization converter (TE ↔ TM) and polarizer. An illustration of the various logic gates that can be implemented by this concept is shown in Fig. 1. The logic input to these devices is an electrical voltage, equivalent to that which rotates the polarization by 90°, and the output is an optical intensity. The optical input is a linearly polarized light, and all waveguides are single mode in the TE and TM polarizations. From Fig. 1, it can be seen that logic gates such as AND, OR, NAND, NOR, EXCLUSIVE-OR, and NOT can be realized by properly arranging and cascading the polarization converters and polarizers along the waveguide pattern. Based on this concept, we report on the fabrication and demonstration of an integrated optical EXCLUSIVE-OR logic gate in Ti:LiNbO3. As shown in Fig. 2, the device consists of a single-mode straight channel waveguide along which two polarization converters are cascaded and followed by a polarizer. The principle of operation can be understood by tracking the light polarization and transmission on the application of voltages to the two converters. Consider the case where both inputs A and B are ON. Assuming that the input light is in the TE polarization, the light is converted into TM past converter A and back to TE past converter B. If the polarizer is designed to pass the TM and attenuate the TE, the output is zero consistent with the truth table requirement of an EXCLUSIVE-OR gate. Other input–output combinations can be verified following the same reasoning.
4
Ruiz-Cruz, Jorge A., Mohamed M. Fahmi, Mojgan Daneshmand, and Raafat R. Mansour. "Compact reconfigurable waveguide circular polarizer." In 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011. IEEE, 2011. http://dx.doi.org/10.1109/mwsym.2011.5972872.
Full text
5
Ruiz-Cruz, J. A., M. M. Fahmi, M. Daneshmand, and R. R. Mansour. "Compact reconfigurable waveguide circular polarizer." In 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011. IEEE, 2011. http://dx.doi.org/10.1109/mwsym.2011.5973545.
Full text
6
Sletten, Mark A. "Surface-Polariton Polarizer for a Planar Optical Waveguide." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.pd6.
Full textAbstract:
A planar, thick slab or thin film, metal waveguide is situated parallel to a planar dielectric film waveguide. As a consequence of the wave interaction between the surface polariton supported by the metal waveguide and the transverse magnetic guided mode of the dielectric waveguide, the latter can be either completely extinguished or its power substantially reduced in a small interaction length. The insertion loss in the same interaction length for the transverse electric guided mode of the dielectric film waveguide is negligibly small. A metal cladding therefore serves as a polarizer for a planar dielectric film waveguide. The theory of this surface polariton polarizer for a planar dielectric film optical waveguide is developed and representative numerical results are presented.
7
So, Daniel W. C. "Metal island film polarizer." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cfa6.
Full textAbstract:
Many integrated optical devices are sensitive to the polarization of light. A thin film polarizer1,2 which transmits the transverse magnetic (TM) mode with a low insertion loss (<1 dB) and which attenuates the transverse electric (TE) mode with a high extinction ratio (>30 dB) is considered. The basic planar device structure consists of a dielectric waveguide which is separated from a parallel metal island film waveguide by a buffer region (Fig. 1). The difference between the TE and the TM modes arises due to the distribution of the metal islands in the film. Because of the excitation of the local surface plasmon in the metal particles, the attenuation of the TE mode is two orders of magitude greater than that of the TM mode. The physical parameters of the metal film waveguide are adjusted such that the TE mode is phase-matched with that of the TE mode of the dielectric waveguide. The TE mode of the optical waveguide is coupled distributively to the metal film waveguide and is attenuated, whereas the TM mode is not coupled due to significant phase mismatch and also is attenuated by two orders of magnitude less than that of the TE mode. Thus, an efficient TM mode pass on-line polarizer can be realized.
8
Ladanyi-Turoczy, B. "Design of a Superelliptic Waveguide Polarizer." In 16th European Microwave Conference, 1986. IEEE, 1986. http://dx.doi.org/10.1109/euma.1986.334232.
Full text
9
Shahin, Mahmoud M., Hayk Gevorgyan, Marcus S. Dahlem, and Anatol Khilo. "TM Polarizer using Segmented Silicon Waveguide." In Integrated Photonics Research, Silicon and Nanophotonics. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/iprsn.2015.im2a.4.
Full text
10
Wang, Xing, Xiaodong Huang, and Xiuhua Jin. "Novel square/rectangle waveguide septum polarizer." In 2016 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB). IEEE, 2016. http://dx.doi.org/10.1109/icuwb.2016.7790510.
Full textReports on the topic "Waveguide polarizer"
1
Doane, J. L. Waveguide elliptic polarizers for ECH at down-shifted frequencies on PLT. Office of Scientific and Technical Information (OSTI), January 1986. http://dx.doi.org/10.2172/6123344.
Full text