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A Study on The Inset Fed Rectangular Microstrip Patch Antenna for S-band Applications

S-대역용 인셋 급전 구형 마이크로스트립 패치 안테나 연구

  • Hong, Jae-Pyo (Department of Electronics Engineering, Kyungil University) ;
  • Kim, Byung-Mun (Division of IT Cooperative Systems, Gyeongbuk Provincial College) ;
  • Son, Hyeok-Woo (School of Electronics Engineering, Kyungpook National University) ;
  • Cho, Young-Ki (School of Electronics Engineering, Kyungpook National University)
  • Received : 2014.06.17
  • Accepted : 2014.07.25
  • Published : 2014.10.31

Abstract

In this paper, the characteristics of a inset fed rectangular microstrip patch antenna for S-band applications is studied. The variations of return loss along inset length and inset width are investigated on the inset fed rectangular microstrip patch antenna. From the investigated results, the optimized inset fed antenna is designed. At the resonant frequency 2.3 GHz, the optimized dimension of the patch is $45.0mm{\times}40.9mm$. The inset length and width are 14 mm and 1 mm, respectively. The designed antenna is fabricated on the substrate which has a dielectric constant and thickness with 2.5 and 0.787 mm. Simulation results are obtained by a 3D EM(Electromagnetic) solver. The resonant frequency and return loss are measured 2.3025 GHz and -21.11 dB, respectively. The measured and simulated results of the fabricated antenna are in good agreement.

본 논문에서는 S-대역에서 동작하는 구형 마이크로스트립 패치 안테나의 인셋 급전 구조에 대해 연구하였다. 인셋 급전 구조에서 인셋의 길이와 폭의 변화에 따른 안테나의 반사손실 특성을 조사하였고, 결과로부터 최적 인셋 급전 안테나를 설계하고, 이득 및 복사패턴을 구하였다. 2.3 GHz에서 최적화된 안테나의 패치 크기는 $45.0mm{\times}40.9mm$, 인셋의 길이는 14 mm, 인셋의 폭은 1 mm이다. 그리고 유전율이 2.5, 두께가 0.787 mm인 기판을 사용하였으며, HFSS를 이용하여 시뮬레이션을 하였다. 인셋 급전 안테나를 제작하여 반사손실을 측정한 결과, 2.3025 GHz에서 -21.11 dB로 이론 결과와 일치함을 알 수 있었다.

Keywords

References

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