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학술지 Design Method of a Circularly-Polarized Antenna Using Fabry-Perot Cavity Structure
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저자
주정호, 김동호, 이왕주, 최재익
발행일
201104
출처
ETRI Journal, v.33 no.2, pp.163-168
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.11.0110.0267
협약과제
10ZI1100, 유비쿼터스 인프라 연구, 김대식
초록
A Fabry-P챕rot 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. © 2011 ETRI.
키워드
Circularly polarized, High gain, Superstrate
KSP 제안 키워드
Antenna gain, Axial Ratio, Cavity structure, Circularly polarized, Design method, FPC antenna, Fabry-Perot cavity, Half-wavelength, Linear polarization, Linearly polarized, Operating frequency