Results 261 to 270 of about 829,156 (307)

Miniaturization of an UWB Dual-Polarized Antenna

open access: yes2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB), 2015
For some UWB applications (short range radars,medical imaging), it has been shown that the use of an antennathat supports a dual-polarization can enhance their accuracy.However, the size of classic UWB dual-polarized antennas makestheir integration into small devices difficult.
Lorho, Nina   +5 more
openaire   +2 more sources

Dual-Polarized SAR and Stokes Parameters

IEEE Geoscience and Remote Sensing Letters, 2006
For a given transmission polarization, the four-element Stokes vector captures all of the information inherent to the dual-polarized backscattered signals. Stokes parameters are linear combinations of the like-polarized power, the cross-polarized power, and the cross product between the complex image amplitudes in the two receive channels.
R Keith Raney
exaly   +2 more sources

Wideband Planarized Dual-Linearly-Polarized Dipole Antenna and Its Integration for Dual-Circularly-Polarized Radiation [PDF]

open access: yesIEEE Antennas and Wireless Propagation Letters, 2018
© 2002-2011 IEEE. A planarized dual-linearly-polarized (dual-LP) antenna and an integrated dual-circularly-polarized (dual-CP) antenna are proposed in this letter. For the dual-LP antenna, two groups of dipoles are fed by two balun-included feed networks
Hai-Han Sun, He Zhu, Can Ding
exaly   +2 more sources

Jointly Shaped Dual Polarization Systems

Optical Fiber Communication Conference (OFC) 2021, 2021
We present a probabilistic shaping algorithm whereby both polarization streams of a dual-polarized system are shaped together. The proposed method offers 0.2-0.92 dB gains over existing shaping schemes for the same block-length.
Mrinmoy Jana   +3 more
openaire   +2 more sources

FPIR: The dual polarization antenna

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013
Full Polarization Interferometric Radiometer (FPIR) is concept of one dimensional synthetic radiometer. This paper introduces the design of the FPIR antenna. A novel linear array antenna is described with emphasis on the simulation of the antenna pattern, design of the stripline feeding network and simulation of the polarimetric isolation.
Jingye Yan   +6 more
openaire   +1 more source

Chill Radar Dual Polarization

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.
Eugene A. Mueller, David A. Brunkow
openaire   +1 more source

MODELLING OF DUAL-POLARIZATION INTERFEROMETRY IN STELLARATORS

Problems of Atomic Science and Technology, 2019
The dual polarization interferometers have been designed and applied in the Uragan-3M and Uragan-2M torsa-trons. However, an extensive modeling of microwave propagation through the plasma in the sheared magnetic field should be provided for correct interpretation of data.
Filippov, V., Grekov, D., Azarenkov, N.
openaire   +2 more sources

Enhanced dual polarization directional coupler for dual polarization beam forming networks

2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017), 2002
Directional couplers and fixed phase shifters are the key components for the realization of beam forming networks. Usually a beam forming network feeds the antenna with two linear and orthogonal polarizations. Dual polarization components can be used to reduce complexity and size of a beam forming network.
F. Alessandri   +3 more
openaire   +1 more source

A DUAL POLARIZED ANTENNA

2009
This invention relates to an antenna (1 ) of the type comprising a casing (3) having a reflector (5) defining a slot (7) and a PCB board (9) carrying a plurality of radiating elements (10) and a feed harness (11 ). The radiating elements and the feed harness form a dual polarized antenna pattern. The PCB is mounted in the casing and protrudes outwardly
BROWNE JAMES   +3 more
openaire   +2 more sources

A dual-polarization rain profiling algorithm

IEEE Transactions on Geoscience and Remote Sensing, 2006
A new attenuation correction algorithm based on profiles of reflectivity, differential reflectivity, and differential propagation phase shift is presented. A solution for specific attenuation retrieval in rain medium is proposed, which solves the integral equations for reflectivity and differential reflectivity with cumulative differential propagation ...
Sanghun Lim, Venkatachalam Chandrasekar
openaire   +1 more source

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