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2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium), 2020
Aiming to introduce a new guiding structure, this work presents dually polarized gap waveguide (DPGWG) operating in transverse electromagnetic (TEM) mode. To show the proof of concept, two waveports are connected at the ends of waveguide and transmission (for both horizontal and vertical polarization) is observed.
Riddhi Goswami, Ahmed Kishk
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Aiming to introduce a new guiding structure, this work presents dually polarized gap waveguide (DPGWG) operating in transverse electromagnetic (TEM) mode. To show the proof of concept, two waveports are connected at the ends of waveguide and transmission (for both horizontal and vertical polarization) is observed.
Riddhi Goswami, Ahmed Kishk
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A Circularly Polarized Dual-Band Microstrip Antenna
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005., 2005In this paper, we present a dual-band CP patch antenna based on the branch-line coupler feeding technique. The compactness of the dual-band antenna is obtained by inserting a small high-frequency patch into a large low-frequency one. Both patches are printed on the same upper substrate and electromagnetically fed through two perpendicular slots etched ...
Luxey, Cyril +3 more
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2016
In this chapter, we study dual polar spaces. These are certain point-line geometries that are closely related to polar spaces. We study several properties of these geometries and describe several families. Dual polar spaces are examples of near polygons.
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In this chapter, we study dual polar spaces. These are certain point-line geometries that are closely related to polar spaces. We study several properties of these geometries and describe several families. Dual polar spaces are examples of near polygons.
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2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006
The CHILL radar was originally designed as dual polarization radar. It was put into operation in late 1971. The original concept was a dual frequency X-band and S-band system. In 1972, the idea of using it as polarization radar was suggested by Drs. Tom Seliga and Viswanathan Bringi.
E. Mueller, D. Brunkow
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The CHILL radar was originally designed as dual polarization radar. It was put into operation in late 1971. The original concept was a dual frequency X-band and S-band system. In 1972, the idea of using it as polarization radar was suggested by Drs. Tom Seliga and Viswanathan Bringi.
E. Mueller, D. Brunkow
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Dual polarized transmitarray lens
The 8th European Conference on Antennas and Propagation (EuCAP 2014), 2014A new dual polarization lens working at the frequency of 30GHz has been designed and simulated. The design of the unit cell is based on a structure of four stacked patches coupled by a symmetric cross that achieves a 360-degree phase-shift for both polarizations by varying a different dimension of the patches for each one.
Enrique G. Plaza +3 more
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A dual-band dual-polarized radar antenna
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559), 2002In a dynamic radar cross section (RCS) measurement system, dual-band and dual-polarization performance is generally required by the antenna system and polarization performance in the two bands should be the same. Some problems including dual-band coplane, dual-band composed feed and polarized conversion are produced.
null Yang Bochao, null Huang Yong
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Dual-polarized broadband dipole
IEEE Antennas and Wireless Propagation Letters, 2003A dual-polarized, broadband antenna made up of two single-polarized dipoles is presented. The antenna is mounted on a ground plane to produce a low-profile structure. Two fractal-like elements are used, but a very wide bandwidth is only achieved by making adjustments to the shape to reduce the coupling between the two polarizations.
J. Perruisseau-Carrier +2 more
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IEEE Journal of Quantum Electronics, 1977
Simultaneous laser oscillation of four nondegenerate polarization and propagation direction eigenstates of a single TEM 00 mode was observed in a ring laser cavity. The observed polarization and frequency properties of the ring laser were analyzed in terms of the Jones matrix calculus.
V. Sanders, R. Kiehn
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Simultaneous laser oscillation of four nondegenerate polarization and propagation direction eigenstates of a single TEM 00 mode was observed in a ring laser cavity. The observed polarization and frequency properties of the ring laser were analyzed in terms of the Jones matrix calculus.
V. Sanders, R. Kiehn
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Cross-polarization in dual polarization switching antennas
International Journal of RF and Microwave Computer-Aided Engineering, 2007This paper presents the effect of the interaction between the switch and the antenna parameters on the cross-polarization of a dual polarization switching antenna. It is shown that the isolated antenna cross-polarization combines with the isolation of the switch giving place to a degradation of the polarization purity of the combined dual polarization ...
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Dual band dual polarized antenna for SAR
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015A novel antenna consisting of a C band dual polarized waveguide slot antenna and an L band slot antenna with shared apertures is presented. The antenna meets the requirement of a dual band SAR application.
Wei Wang +4 more
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