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학술지 Broadband High-Gain Fabry-Perot Cavity Antenna with Back Radiation Reduction
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저자
주정호, 최재익
발행일
201305
출처
Microwave and Optical Technology Letters, v.55 no.5, pp.975-978
ISSN
0895-2477
출판사
John Wiley & Sons
DOI
https://dx.doi.org/10.1002/mop.27474
협약과제
11PR3200, 메타 전자파 구조를 이용한 전파(RF)스펙트럼 특성 개선 기술 연구, 정영준
초록
A Fabry-Perot (FP) cavity antenna simultaneously producing a high-gain, wide-bandwidth, and high front-to-back ratio (FBR) is proposed. To reduce the back radiation, we enclosed all the openings of our antenna with folded metal walls having a length of approximately 0.2{\\lambda} at a center frequency of 1.8 GHz, and to obtain a broader bandwidth and high gain, we employed a superstrate composed of double layered metal strip lines and placed over a feeder antenna. The antenna with folded metal walls compared to without folded metal walls yields a significant reduction in back radiation levels over the operating frequencies. An average suppression in back radiation of 20 dB was obtained, and a maximum gain value of 18.77 dBi has been measured over a 3 dB gain bandwidth of 24.1% (1.64-2.09 GHz). © 2013 Wiley Periodicals, Inc.
키워드
broadband, Fabry-Perot (FP) cavity, high FBR, high gain
KSP 제안 키워드
Broader bandwidth, Center frequency, Double layered, Fabry-Perot cavity antenna, Layered metal, Strip line, Wide bandwidth, front-to-back ratio, gain bandwidth, high gain, metal strip