Results 291 to 300 of about 2,253,897 (339)

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, BROWNE EDWINA, THOMPSON NAOMI, COLLERY JUSTIN   +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, Ji Wu, Xiaocheng Yang, Hao Liu, Cheng Zhang, Guang Liu, Heguang Liu   +6 more
openaire   +1 more source

Dual-Polarization Antennas With High Isolation and Polarization Purity: A Review and Comparison of Cross-Coupling Mechanisms

IEEE Antennas & Propagation Magazine, 2019
Existing dual-polarization antennas are categorized into three separate groups according to their topologies. Various cross-coupling mechanisms between orthogonal polarizations are specifically discussed in three categories and related to port isolation ...
M. Mirmozafari, Guifu Zhang, C. Fulton, R. Doviak   +3 more
semanticscholar   +1 more source

Dual-band dual-polarization reconfigurable THz antenna based on graphene

Applied Physics Express, 2020
A dual-band polarization reconfigurable terahertz antenna is proposed by incorporating a monopole antenna with a graphene-based dual-band active polarization converter metasurface (APCM).
Xinlei Lv, Bian Wu, Yutong Zhao, Haoran Zu, Weibing Lu   +4 more
semanticscholar   +1 more source

Broadband dual-polarized omnidirectional antennas

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation, 2012
A broadband dual-circularly polarized (right-handed and left-handed) omnidirectional antenna and a broadband dual-linearly (horizontally and vertically) polarized omnidirectional antenna are presented. Both dual-polarized omnidirectional antennas have a bandwidth of about 30%. Good omnidirectional radiation patterns are obtained for both polarizations.
XuLin Quan, RongLin Li
openaire   +1 more source

Broadband Dual-Polarized Printed Arrays

19th European Microwave Conference, 1989, 1989
Two double-sided printed-dipole arrays are combined in the same aperture. The arrays operate efficiently in two orthogonal polarizations over a large band of frequencies. Experimental results verify the practical value of this antenna.
E. Levine, S. Shtrikman
openaire   +1 more source

Dual-polarized plasmonic nano-cables

2009 11th International Conference on Transparent Optical Networks, 2009
In this paper we discuss eigenmodes propagating in plasmonic coaxial waveguides of nano-scale dimensions. Plasmonic nano-cables with an elliptic shape of a central rod are proposed. Break of the azimuthal symmetry makes it easier to excite dipole-type modes.
Andrey Soloviev, Igor Nefedov, Sergei Tretyakov   +2 more
openaire   +1 more source

Dual Polarity Gravity Paper

We propose a unified conceptual and mathematical framework in which gravity exists in two conserved and interacting modes: Attractive Gravity (AG), which is locally bound to mass, and Repellent Gravity (RG), which exists as a free, dispersed substrate permeating the cosmos.
Liles, Steven, GO-AI human AI collaboration   +1 more
openaire   +1 more source

Dual polarized smart antenna beams

Proceedings of Vehicular Technology Conference - VTC, 2002
Interest has centered on the use of "smart antennas" in cellular as well as DCS 1800/PCS 1900 bands with a view to obtaining significantly improved spectral efficiencies, better quality of service, higher capacities, and improved coverage, while at the same time achieving significant savings in base station costs.
B. Vaidyanathan, M.D. Srinath, G.D. Mandyam   +2 more
openaire   +1 more source

Ultra-compact dual-polarization silicon mode-order converter.

Optics Letters, 2019
The mode-order converter is a building block in a multimode optical transmission and switching system. It can be used for switching signals carried on different mode channels.
Hao Jia, Haoxiang Chen, Jianhong Yang, Huifu Xiao, Wenping Chen, Yonghui Tian   +5 more
semanticscholar   +1 more source