Littérature scientifique sur le sujet « Waveguide polarizer »
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Articles de revues sur le sujet "Waveguide polarizer"
Piltyay, S. І., А. V. Bulashenko, А. V. Polishchuk et О. V. Bulashenko. « Microwave waveguide polarizer for satellite communication antennas with circular polarization ». Kosmìčna nauka ì tehnologìâ 28, no 3 (18 juillet 2022) : 43–61. http://dx.doi.org/10.15407/knit2022.03.043.
Texte intégralXiao, Jun, Jin Tian, Tongyu Ding, Hongmei Li et Qiubo Ye. « Broadband Circularly Polarized Conical Corrugated Horn Antenna Using a Dielectric Circular Polarizer ». Micromachines 13, no 12 (3 décembre 2022) : 2138. http://dx.doi.org/10.3390/mi13122138.
Texte intégralKazanskiy, Nikolai Lvovich, et 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 (30 septembre 2020) : 85. http://dx.doi.org/10.4302/plp.v12i3.1044.
Texte intégralPiltyay, S. « Square Waveguide Polarizer with Diagonally Located Irises for Ka-Band Antenna Systems ». Advanced Electromagnetics 10, no 3 (26 octobre 2021) : 31–38. http://dx.doi.org/10.7716/aem.v10i3.1780.
Texte intégralFantauzzi, S., L. Valletti et F. Di Paolo. « Virtual Prototype of Innovative Ka-Band Power Amplifier Based on Waveguide Polarizer ». Advanced Electromagnetics 9, no 2 (14 octobre 2020) : 60–65. http://dx.doi.org/10.7716/aem.v9i2.1497.
Texte intégralPiltyay, S., A. Bulashenko, V. Shuliak et O. Bulashenko. « Electromagnetic Simulation of New Tunable Guide Polarizers with Diaphragms and Pins ». Advanced Electromagnetics 10, no 3 (26 octobre 2021) : 24–30. http://dx.doi.org/10.7716/aem.v10i3.1737.
Texte intégralWang, Binbin, Sylvain Blaize et 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.
Texte intégralFujita, J., M. Levy, R. Scarmozzino, R. M. Osgood, L. Eldada et J. T. Yardley. « Integrated multistack waveguide polarizer ». IEEE Photonics Technology Letters 10, no 1 (janvier 1998) : 93–95. http://dx.doi.org/10.1109/68.651119.
Texte intégralPiltyay, S., A. Bulashenko, I. Fesyuk et O. Bulashenko. « Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms ». Advanced Electromagnetics 10, no 2 (31 juillet 2021) : 44–55. http://dx.doi.org/10.7716/aem.v10i2.1713.
Texte intégralLin, Baizhu, Tianhang Lian, Shijie Sun, Mu Zhu, Yuanhua Che, Xueqing Sun, Xibin Wang et Daming Zhang. « Ultra-Broadband and Compact TM-Pass Polarizer Based on Graphene-Buried Polymer Waveguide ». Polymers 14, no 7 (6 avril 2022) : 1481. http://dx.doi.org/10.3390/polym14071481.
Texte intégralThèses sur le sujet "Waveguide polarizer"
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.
Texte intégralIncludes bibliographical references (leaves 70-71).
by Jonathan J. Klaren.
M.S.
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.
Texte intégralMrnka, 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.
Texte intégralLecián, 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.
Texte intégralDogan, Doganay. « Dual Polarized Slotted Waveguide Array Antenna ». Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613016/index.pdf.
Texte intégral35 degrees in elevation. It also has a usable bandwidth of 600 MHz.
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.
Texte intégralFerrando, 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.
Texte intégral[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
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.
Texte intégralThis 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
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.
Texte intégralTseng, Irving, et 曾爾凡. « Miniaturized Planar Transmission Line to Metallic Waveguide Transition and Polarizer ». Thesis, 2016. http://ndltd.ncl.edu.tw/handle/86062381978769320699.
Texte intégral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.
Livres sur le sujet "Waveguide polarizer"
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.
Trouver le texte intégralLee, 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.
Trouver le texte intégralChapitres de livres sur le sujet "Waveguide polarizer"
Eberhard, D., et H. Bülow. « Single Mode Channel Waveguide Polarizer on LiNbO3 ». Dans 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.
Texte intégralMadaan, Divya, Davinder Kaur, V. K. Sharma et A. Kapoor. « Design and Analysis of Efficient Metal Clad Optical Waveguide Polarizer ». Dans Springer Proceedings in Physics, 257–60. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29096-6_35.
Texte intégralFitzau, Oliver. « Polarized Fiber Lasers and Amplifiers ». Dans 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.
Texte intégralKhan, Mohammad Imroz, Avinash Chandra et Sushrut Das. « A Dual Band, Dual Polarized Slot Antenna Using Coplanar Waveguide ». Dans Advances in Computer, Communication and Control, 95–103. Singapore : Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3122-0_10.
Texte intégralChandra, Avinash, Kalpesh S. Dakhode et Hemprasad Yashwant Patil. « A FSS- and Metasurface-Loaded Dual-Polarized High-Gain Waveguide Array ». Dans Lecture Notes in Electrical Engineering, 547–53. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2761-3_48.
Texte intégralOdhekar, Anuja, et Amit A. Deshmukh. « Coplanar Waveguide Fed Modified Helicopter Fan-Shaped Microstrip Antenna for Circularly Polarized Response ». Dans 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.
Texte intégralAgrawal, Meha, Kapil Saraswat et Trivesh Kumar. « Wideband Substrate Integrated Waveguide Based Dual-Polarized Antenna for Satellite Applications in Ku-Band ». Dans Lecture Notes in Electrical Engineering, 115–23. Singapore : Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8554-5_12.
Texte intégralYu, Miao, ZhiQiang Zhang et JianHua Ren. « Research on Coupling Characters of the Linear Polarized Mode between Two Multi-mode Silica Circular Waveguide ». Dans 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.
Texte intégralBulashenko, Andrew, et Stepan Piltyay. « MODELLING AND OPTIMIZATION OF WAVEGUIDE POLARIZERS WITH THE ACCOUNT OF IRISES THICKNESS ». Dans 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.
Texte intégralTéllez-Limón, Ricardo, et Rafael Salas-Montiel. « Nanowires Integrated to Optical Waveguides ». Dans Nanowires - Recent Progress. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95689.
Texte intégralActes de conférences sur le sujet "Waveguide polarizer"
Yuen, S., J. Chrostowski et B. Syrett. « Polymer integrated optical polarizer ». Dans OSA Annual Meeting. Washington, D.C. : Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tuz3.
Texte intégralBloemer, Mark. « Localized surface plasmons for waveguide polarizers ». Dans Integrated Photonics Research. Washington, D.C. : Optica Publishing Group, 1991. http://dx.doi.org/10.1364/ipr.1991.tha6.
Texte intégralFindakly, Talal, B. Dougfierty et J. Moen. « Integrated-optic logic gates ». Dans Integrated and Guided Wave Optics. Washington, D.C. : Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.thcc15.
Texte intégralRuiz-Cruz, Jorge A., Mohamed M. Fahmi, Mojgan Daneshmand et Raafat R. Mansour. « Compact reconfigurable waveguide circular polarizer ». Dans 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011. IEEE, 2011. http://dx.doi.org/10.1109/mwsym.2011.5972872.
Texte intégralRuiz-Cruz, J. A., M. M. Fahmi, M. Daneshmand et R. R. Mansour. « Compact reconfigurable waveguide circular polarizer ». Dans 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011. IEEE, 2011. http://dx.doi.org/10.1109/mwsym.2011.5973545.
Texte intégralSletten, Mark A. « Surface-Polariton Polarizer for a Planar Optical Waveguide ». Dans OSA Annual Meeting. Washington, D.C. : Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.pd6.
Texte intégralSo, Daniel W. C. « Metal island film polarizer ». Dans 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.
Texte intégralLadanyi-Turoczy, B. « Design of a Superelliptic Waveguide Polarizer ». Dans 16th European Microwave Conference, 1986. IEEE, 1986. http://dx.doi.org/10.1109/euma.1986.334232.
Texte intégralShahin, Mahmoud M., Hayk Gevorgyan, Marcus S. Dahlem et Anatol Khilo. « TM Polarizer using Segmented Silicon Waveguide ». Dans Integrated Photonics Research, Silicon and Nanophotonics. Washington, D.C. : OSA, 2015. http://dx.doi.org/10.1364/iprsn.2015.im2a.4.
Texte intégralWang, Xing, Xiaodong Huang et Xiuhua Jin. « Novel square/rectangle waveguide septum polarizer ». Dans 2016 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB). IEEE, 2016. http://dx.doi.org/10.1109/icuwb.2016.7790510.
Texte intégralRapports d'organisations sur le sujet "Waveguide polarizer"
Doane, J. L. Waveguide elliptic polarizers for ECH at down-shifted frequencies on PLT. Office of Scientific and Technical Information (OSTI), janvier 1986. http://dx.doi.org/10.2172/6123344.
Texte intégral