a new dual circularly polarized feed employing a dielectric cylinder-loaded circular waveguide open end fed by crossed dipoles

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ID: 220490
2016
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Ranked #114 of 321 articles by views in american journal of physiology endocrinology and metabolism

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Abstract
This paper presents a new dual circularly polarized feed that provides good axial ratio over wide angles and low cross-polarized radiation in backward direction. A circular waveguide open end is fed with two orthogonally polarized waves in phase quadrature by a pair of printed crossed dipoles and a compact connectorized quadrature hybrid coupler. The waveguide aperture is loaded with a dielectric cylinder to reduce the cross-polarization beyond 90 degrees off the boresight. The fabricated feed has, at 5.5 GHz, 6.33-dBic copolarized gain, 3-dB beamwidth of 106°, 10-dB beamwidth of 195°, 3-dB axial ratio beamwidth of 215°, maximum cross-polarized gain of −21.4 dBic, and 27-dB port isolation. The reflection coefficient of the feed is less than −10 dB at 4.99–6.09 GHz.
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bang2016internationala Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Jae-Hoon Bang, Soon-Woo Choi, Jae-Woo Noh, Joo-Young Lim, Dong-Hyun Kim, Dae-Oh Kim, Bierng-Chearl Ahn
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Journal american journal of physiology endocrinology and metabolism
Year 2016
DOI
10.1155/2016/7570316
URL
http://dx.doi.org/10.1155/2016/7570316
Keywords
electrical engineering electronics wireless telephone industry nuclear engineeringcellular telephone services industry

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