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http://dx.doi.org/10.4218/etrij.11.0110.0267

Design Method of a Circularly-Polarized Antenna Using Fabry-Perot Cavity Structure  

Ju, Jeong-Ho (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Kim, Dong-Ho (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Lee, Wang-Joo (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Choi, Jae-Ick (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Publication Information
ETRI Journal / v.33, no.2, 2011 , pp. 163-168 More about this Journal
Abstract
A Fabry-Perot cavity (FPC) antenna producing both high-gain and circularly-polarized (CP) behavior is proposed. To increase antenna gain and obtain CP characteristics, a superstrate composed of square patches with a pair of truncated corners is placed above the linearly polarized patch antenna with an approximately half-wavelength distance from the ground plane at the operating frequency. The proposed antenna has the advantages of high gain, a simple design, and an excellent boresight axial ratio over the operating frequency bandwidth. Moreover, used in an FPC antenna, the proposed superstrate converts a linear polarization produced by a patch antenna into a circular polarization. In addition, the cavity antenna produces left-hand circular-polarization and right-hand circular-polarization when a patch antenna inside the cavity generates x-direction and y-direction polarization, respectively. The measured and simulated results verify the performance of the antenna.
Keywords
High gain; circularly polarized; superstrate;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 3
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