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Artykuły w czasopismach na temat "Beam dividers"
Klein, Tobias, Peter Uhlig, Carsten Günner i Reinhard Kulke. "Substrate-integrated divider networks in LTCC with optimized tolerance / isolation properties for Ka-Band satellite systems". International Symposium on Microelectronics 2014, nr 1 (1.10.2014): 000816–19. http://dx.doi.org/10.4071/isom-thp22.
Pełny tekst źródłaLi, Chong, Lai Bun Lok, Ata Khalid, Vasileios Papageorgiou, James Grant i David R. S. Cumming. "Millimeter-wave coplanar stripline power dividers". International Journal of Microwave and Wireless Technologies 5, nr 3 (1.05.2013): 205–12. http://dx.doi.org/10.1017/s1759078713000421.
Pełny tekst źródłaBoutayeb, Halim, Paul R. Watson, Weishan Lu i Tao Wu. "Beam Switching Dual Polarized Antenna Array With Reconfigurable Radial Waveguide Power Dividers". IEEE Transactions on Antennas and Propagation 65, nr 4 (kwiecień 2017): 1807–14. http://dx.doi.org/10.1109/tap.2016.2629469.
Pełny tekst źródłaYip, G. L., i M. A. Sekerka-Bajbus. "Design of symmetric and asymmetric passive 3-branch power dividers by beam propagation method". Electronics Letters 24, nr 25 (1988): 1584. http://dx.doi.org/10.1049/el:19881080.
Pełny tekst źródłaRudakov, Viacheslav, i Victor Sledkov. "Development of antenna arrays with a beam width 33 degrees at the level of half power". ITM Web of Conferences 30 (2019): 05030. http://dx.doi.org/10.1051/itmconf/20193005030.
Pełny tekst źródłaVan Trinh, Thai, Son Trinh-Van, Kang-Yoon Lee, Youngoo Yang i Keum Cheol Hwang. "Design of a Low-Cost, Low-Sidelobe-Level, Differential-Fed SIW Slot Array Antenna with Zero Beam Squint". Applied Sciences 12, nr 21 (25.10.2022): 10826. http://dx.doi.org/10.3390/app122110826.
Pełny tekst źródłaSalem Hesari, Sara, i Jens Bornemann. "Antipodal Vivaldi Antenna Arrays Fed by Substrate Integrated Waveguide Right-Angled Power Dividers". Applied Sciences 8, nr 12 (14.12.2018): 2625. http://dx.doi.org/10.3390/app8122625.
Pełny tekst źródłaFIELDS, C. H., M. SOKOLICH, S. THOMAS, K. ELLIOT i J. JENSEN. "Progress toward 100 GHz Logic in InP HBT IC Technology". International Journal of High Speed Electronics and Systems 11, nr 01 (marzec 2001): 217–43. http://dx.doi.org/10.1142/s0129156401000836.
Pełny tekst źródłaArce, Armando, Enrique Stevens-Navarro, Ulises Pineda-Rico, Marco Cardenas-Juarez, Francisco R. Castillo-Soria i David H. Covarrubias. "Optimization of a Coherent Dual-Beam Array Feed Network for Aperiodic Concentric Ring Antennas". Applied Sciences 11, nr 3 (26.01.2021): 1111. http://dx.doi.org/10.3390/app11031111.
Pełny tekst źródłaYan, Lei, Wenbin Zou, Kaihong Zheng, Guangli Yang i Yong Luo. "A Dual-Polarized CTS Array Antenna with Four Reconfigurable Beams for mm-Wave Wind Profile Radar". Electronics 13, nr 1 (4.01.2024): 238. http://dx.doi.org/10.3390/electronics13010238.
Pełny tekst źródłaRozprawy doktorskie na temat "Beam dividers"
Alrifai, Rim. "Fonctions optiques robustes dans des structures de guides d'onde : liens avec des phénomènes quantiques". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0087.
Pełny tekst źródłaWave propagation in coupled optical waveguides and population dynamics in quantum systems composed of coupled discrete levels share a common mathematical formalism related to the underlying Schrödinger equation. In the context of this thesis the key role is played by the relation between robust adiabatically evolving quantum systems and corresponding adiabatically evolving waveguide systems. In the optics case the robustness reflects in a strongly increased tolerance with respect to changes in wavelength (achromaticity), temperature, or unwanted variations in the waveguide parameters.Earlier works in our laboratory in the context of the above analogy were related to waveguides allowing propagation of the fundamental mode only and did not consider the possible propagation of both orthogonal polarization modes. In the present thesis we fill this gap by discussing ways for achieving broadband polarization separation as well as broadband mode conversions. The investigated systems are composed of three coupled waveguides with a spatial adiabatic evolution. In addition, we consider a third system where a dissipation in one of three waveguides allows to achieve ultra-broadband power splitting despite for the absence of any adiabatic evolution of the waveguide parameters.Integrated polarization beam splitters (PBS) play a significant role in many integrated photonic devices where the polarization state of light requires manipulation and important efforts are under way to make such a functionality as broadband as possible. Our proposal in this context involves a three-waveguides configuration with anisotropic refractive index either in the core or in the cladding and is inspired by the quantum STIRAP process (STImulated Raman Adiabatic Passage). Our analysis shows that an anisotropy ratio of 5 (ratio between the refractive index contrasts for the TM and TE waves) is sufficient for separating efficiently the two polarizations over a spectral range of ≈ 350 nm around the 1550 nm central wavelength. The bandwidth of such PBS increases by increasing the anisotropy factor and the central wavelength can be adjusted by modifying the waveguides.One of the ways presently envisaged for increasing the nearly saturated capacity of optical telecommunication systems relies on space division multiplexing, where signals are transmitted on different spatial modes of a multimode optical fiber. This kind of approach requires elements capable of demultiplexing the modes by separating and converting them. Our proof of concept in this context is based again on an adiabatic three-waveguide systems and permits conversion between a higher order mode and the fundamental mode (or vice-versa) over a wide spectral range. The underlying waveguide design is again analogous to the above quantum STIRAP process or in alternative to Adiabatic Elimination (AE) in which case the central waveguide is strongly detuned from the two others.As mentioned above, the third system studied in this thesis does not rely on adiabatically evolving waveguides but is related to the behavior of non-Hermitian quantum systems, specifically to quantum population transfer through a decaying intermediate state. Our approach is based on three parallel waveguides of which the central one is highly dissipating. It leads to ultra-broad band power division that has to be paid by a 50% overall loss if equal power is wished in the two output ports. Here the absence of the slow adiabatic variation allows for more compact systems, especially if the central waveguide is of the plasmonic type.The three systems that are discussed in this thesis show the great potential of quantum-inspired approaches for robust photonics, where tolerant, versatile and broadband functionalities are required. While devices of this kind may be used principally in classical integrated photonics, their use for single photon management in quantum optics is also an attractive perspective
Stetz, Jeffrey Brian. "Using noninvasive genetic sampling to assess and monitor grizzly bear population status in the in the northern continental divide ecosystem". [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-01142009-131434/unrestricted/JStetz_thesis_Final.pdf.
Pełny tekst źródłaTitle from author supplied metadata. Description based on contents viewed on May 15, 2009. ETD number: etd-01142009-131434. Author supplied keywords: bear rubs ; grizzly bear ; mark-recapture ; noninvasive genetic sampling ; Northern Continental Divide Ecosystem ; Pradel model ; trend monitoring ; Ursus arctos. Includes bibliographical references.
Fee, Margery. "Articulating the Female Subject: The Example of Marian Engel's Bear". Atlantis: A Women's Studies Journal/Journal d'etudes sur la femme, 1988. http://hdl.handle.net/2429/11252.
Pełny tekst źródłaKojima, Seishiro. "Novel Beamforming and Antenna Techniques for Microwave Power Transmission in Radiating Near Field". Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263667.
Pełny tekst źródłaKilic, Ozgehan. "Defected Ground Structure And Its Applications To Microwave Devices And Antenna Feed Networks". Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612415/index.pdf.
Pełny tekst źródłaSuddason, Karina. "Exploring issues in empirical finance : international evidence on payout ratio, returns, earnings and dividends ; investigating duration dependence in bull and bear markets ; using survival analysis approach to model the duration of sovereign debt default". Thesis, University of Southampton, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442776.
Pełny tekst źródłaSharp, Michael G. "Ghost Water Exhibition". BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6272.
Pełny tekst źródłaLee, Jungkyu. "Single-band and Dual-band Beam Switching Systems and Offset-fed Beam Scanning Reflectarray". Thesis, 2012. http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11012.
Pełny tekst źródłaPetropoulos, Ioannis, Konstantinos N. Voudouris, Raed A. Abd-Alhameed i Steven M. R. Jones. "Beam-forming module for backhaul link in a Relay-aided 4G network". 2015. http://hdl.handle.net/10454/7882.
Pełny tekst źródłaA novel beam-forming module based on Wilkinson power divider technology, including attenuators and phase shifter chips is designed, fabricated and evaluated to be incorporated in a Relay Station connecting it with the Base Station under a 4G network. The proposed module is a 1:8 port circuit, utilizing two substrates, providing approximately 700 MHz bandwidth over 3.5 GHz frequency band and less than −20 dB transmission line coupling. Moreover an external control unit that feeds the beam-forming module with code-words that define the proper amplitude/phase of the excitation currents is established and described. The presented module is connected to a planar array and tested for two beam-forming scenarios, providing satisfactory radiation patterns.
Jiang, Ming-Jyun, i 姜名駿. "A Study of Linear Retro-Beam Scanning Array System and On-Chip Dual-band Wilkinson Power Divider". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/t4k8x9.
Pełny tekst źródła國立臺灣科技大學
電機工程系
107
This thesis consists of two independent researches. In the first part, a linear retro-beam scanning system, capable of estimating the direction of arrival (DOA) and retransmitting the signal to a desired direction, is proposed and demonstrated. Studying the governing equations of the retrodirective array (RDA) reveals a possibility of steering the retransmitting signal from original direction (incident angle in the conventional RDA design) by introducing extra phase shifters between the receiving and transmitting paths. To do so, a simple DOA module is designed to trace out the incident angle while the required phase shift sourced by phase shifters will be automatically calculated by Arduino microcontroller as long as the desired retransmitting direction is pre-determined. To validate the design concept, the proposed system was constructed and test; the measured results illustrate that the proposed system can function as a relay unit to retransmit signals to an arbitrary direction with an acceptable scanning range from -30o to +30o. Secondly, a 28/60 GHz dual-band power divider aiming at mm-wave applications has been designed and validated on GaAs integrated passive device (IPD) process. The design concept is based on the unique response of the composite right/left handed transmission line (CRLH-TL) to control the second operating frequency of the Wilkinson power divider. Referring from the measured results, the proposed power divider not only shows the good in-band responses at both operating frequencies but also occupies a very compact footprint when compared to other studies in the open literature. It is believed to be the first on-chip dual-band power divider at mm-wave frequencies.
Książki na temat "Beam dividers"
Knowles, Harvey C. The dividend investor: A safe, sure way to beat the market. Chicago: Probus Pub. Co., 1992.
Znajdź pełny tekst źródłaKnowles, Harvey C. The dividend investor: A safe and sure way to beat the market with high-yield dividend stocks. London: Irwin Professional Publishing, 1992.
Znajdź pełny tekst źródłaBarsky, Robert B. Bull and bear markets in the twentieth century. Cambridge, MA: National Bureau of Economic Research, 1989.
Znajdź pełny tekst źródłaGardner, A. Dudley. Historic investigations of the Bear River Divide segment of the Oregon Trail. Rock Springs, Wyo: Archaeological Services, Western Wyoming College, 1987.
Znajdź pełny tekst źródłaGardner, A. Dudley. Historic investigations of the Bear River Divide segment of the Oregon Trail. [Cheyenne, Wyo.?: Bureau of Land Management, Wyoming State Office], 1987.
Znajdź pełny tekst źródłaGardner, A. Dudley. Historic investigations of the Bear River Divide segment of the Oregon Trail. [Cheyenne, Wyo.?: Bureau of Land Management, Wyoming State Office], 1987.
Znajdź pełny tekst źródłaDivided we stand: How Al Gore beat George Bush and lost the presidency. New York: Crown Publishers, 2001.
Znajdź pełny tekst źródłaUnited States. National Park Service, red. Sleeping Bear Dunes National Lakeshore: Platte Plains hiking trail : 13 miles divided into shorter loops. Wyd. 2. [Washington, D.C.?]: National Park Service, Dept. of the Interior, 1992.
Znajdź pełny tekst źródłaUnited States. National Park Service., red. Sleeping Bear Dunes National Lakeshore: Platte Plains hiking trail : 15 miles divided into shorter loops. Wyd. 3. [Washington, D.C.?: National Park Service, 1989.
Znajdź pełny tekst źródłaEmsbach, Michael, i Marcel Schippmann. Gestaltungsspielräume der Qualifizierung schwächer qualifizierter Bevölkerungssegmente beim Übergang von der Industriegesellschaft zur Informationsgesellschaft, untersucht am Beispiel grosser Hafenstädte der Welt. Aachen: Shaker, 2009.
Znajdź pełny tekst źródłaCzęści książek na temat "Beam dividers"
Fuchs, Michael. "“I Can’t Believe This Is Happening!”: Bear Horror, the Species Divide, and the Canadian Fight for Survival in a Time of Climate Change". W Studies in Global Science Fiction, 257–73. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15685-5_15.
Pełny tekst źródłaSarid, Dror. "Heterodyne Detection System". W Scanning Force Microscopy, 91–100. Oxford University PressNew York, NY, 1994. http://dx.doi.org/10.1093/oso/9780195092042.003.0007.
Pełny tekst źródłaHoulahan, Micheál, i Philip Tacka. "Simple Meter". W Choral Sight Reading, 57—C7.P43. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/oso/9780197550533.003.0007.
Pełny tekst źródłaBrooker, Geoffrey. "The Fabry–Perot". W Modern Classical Optics, 109–31. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198599647.003.0005.
Pełny tekst źródłaWhites, Leeann. "The Civil War as a Crisis in Gender". W Divided Houses, 3–21. Oxford University PressNew York, NY, 1992. http://dx.doi.org/10.1093/oso/9780195074079.003.0001.
Pełny tekst źródła"Reading Beat and Being Beat in Oslo – the Reception and Inspiration of Beat Culture in Post-war Norway". W Beat Literature in a Divided Europe, 253–72. Brill | Rodopi, 2018. http://dx.doi.org/10.1163/9789004364127_013.
Pełny tekst źródła"Failure Analysis of Weldments". W Weld Integrity and Performance, 197–214. ASM International, 1997. http://dx.doi.org/10.31399/asm.tb.wip.t65930197.
Pełny tekst źródła"Introduction". W Beat Literature in a Divided Europe, 1–18. Brill | Rodopi, 2018. http://dx.doi.org/10.1163/9789004364127_002.
Pełny tekst źródła"Literature in a State of Crisis – Beat Poetry, the Modernist Establishment and the Avant-Garde in Iceland". W Beat Literature in a Divided Europe, 19–42. Brill | Rodopi, 2018. http://dx.doi.org/10.1163/9789004364127_003.
Pełny tekst źródła"In Kainuu as in Colorado – Receptions and Appropriations of Beat Literature in Finland in the 1960s". W Beat Literature in a Divided Europe, 43–62. Brill | Rodopi, 2018. http://dx.doi.org/10.1163/9789004364127_004.
Pełny tekst źródłaStreszczenia konferencji na temat "Beam dividers"
Shin, D., Robert Magnusson i M. G. Moharam. "Diffractive multiorder beam dividers". W OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.tuff5.
Pełny tekst źródłaKnaak, K. M., K. Wendt i H. J. Kluge. "A Laser Operated Precision DC HV Voltmeter". W The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cwc6.
Pełny tekst źródłaRussell, P. St J., i T. A. Birks. "All-Fibre Frequency Shifters, Modulators and Switches". W The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.ctho1.
Pełny tekst źródłaAlbuquerque, T. C., T. L. V. N. Silva, A. J. R. Serres, R. C. S. Freire, J. Walheim, F. Podevin, F. Burdin, P. Ferrari i T. P. Vuong. "Implementation of beam-steering front-ends at 2.45 GHz using modified Wilkinson power dividers, reflexion type phase shifters and C-shape monopole antennas: First results". W 2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC). IEEE, 2015. http://dx.doi.org/10.1109/imoc.2015.7369191.
Pełny tekst źródłaYip, Gar Lam. "Modelling, Design Optimization and Fabrication of Guided-Wave Photonic Devices in Glass". W Gradient-Index Optical Imaging Systems. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/giois.1994.gtud1.
Pełny tekst źródłaWang, Z. X., i W. B. Dou. "Uniform beam shaper and beam divider in millimeter wave band". W >2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics. IEEE, 2006. http://dx.doi.org/10.1109/icimw.2006.368511.
Pełny tekst źródłaHsu, Fu Kuo. "Laser-beam alignment stabilization by self-compensation". W OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.thrr3.
Pełny tekst źródłaTamura, Shinji. "Theoretical Analysis of Natural Frequencies and Mode Shapes of Three-Dimensional Piping Systems". W ASME 2023 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/pvp2023-106207.
Pełny tekst źródłaCapello, Edoardo, i Barbara Previtali. "Effect of Dual Beam on Reduction of Porosity in CO2 Laser Welding". W ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95388.
Pełny tekst źródłaXu, Huai Fang. "Real time optical 2-D array logic operation using two-wave mixing in photorefractive crystals". W OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.wl52.
Pełny tekst źródłaRaporty organizacyjne na temat "Beam dividers"
Salter i Weston. L51534 A Study of New Joining Processes for Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), styczeń 1987. http://dx.doi.org/10.55274/r0010083.
Pełny tekst źródłaAPPLICATION OF HYDRAULIC SYNCHRONOUS LIFTING TECHNOLOGY IN THE CONSTRUCTION OF LONG-SPAN HYBRID STEEL STRUCTURES. The Hong Kong Institute of Steel Construction, sierpień 2022. http://dx.doi.org/10.18057/icass2020.p.070.
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