The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Wideband Cavity Back Antenna for Signal Intelligence

신호 정보 수집용 광대역 캐비티 백 안테나

  • Jeoung, Gu-Ho (Department of Electronics and Computer Engineering, Hanyang University) ;
  • Lee, Seong-Kyu (Department of Electronics and Computer Engineering, Hanyang University) ;
  • Choi, Jae-Hoon (Department of Electronics and Computer Engineering, Hanyang University)
  • 정구호 (한양대학교 전자컴퓨터통신공학과) ;
  • 이성규 (한양대학교 전자컴퓨터통신공학과) ;
  • 최재훈 (한양대학교 전자컴퓨터통신공학과)
  • Received : 2016.08.25
  • Accepted : 2016.12.07
  • Published : 2016.12.30
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Abstract

In this paper, a cavity back slot antenna with a rotated rectangular patch is proposed. The proposed antenna consists of a ground plane with cavity structure, a microstrip feed line, and a rectangular patch with slot. With a dimension of $55mm{\times}40mm{\times}10mm$, the proposed antenna has the wide bandwidth due to the cavity structure. Measured 10 dB return loss bandwidth and fractional bandwidth of the proposed antenna is 5,030 MHz(3.02~8.05 GHz) and 90.9 % at the center frequency of 5.05 GHz. The proposed antenna is designed and simulated using ANSYS HFSS v.15.0.0. The designed antenna is fabricated and tested to validate its performances.

본 논문에서는 캐비티 백(Cavity-back) 구조를 이용한 신호 정보 수집용 광대역 안테나를 제안하였다. 제안된 안테나는 캐비티 구조를 가지는 접지면, 마이크로스트립 급전선, 슬롯이 식각된 사각패치로 이루어져 있다. 제안된 안테나는 $55mm{\times}40mm{\times}10mm$의 크기에서 캐비티 구조를 통해 광대역의 대역폭을 갖는다. 안테나의 측정된 10 dB 반사손실 대역폭은 5,030 MHz(3.02~8.05 GHz)이며, 중심주파수 5.05 GHz에서 비 대역폭 90.9 %을 가진다. ANSYS사의 HFSS v.15.0.0을 이용하여 제안된 안테나의 설계 및 시뮬레이션을 수행하였다. 제작 및 측정을 통해 안테나의 성능 및 설계방법의 타당성을 검증하였다.

Keywords

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