The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Optimum Design of a Dual-Band Microstrip Patch Antenna using the Square CSRR Construction

CSRR 구조 이중대역 마이크로스트립 패치안테나의 최적 설계

  • Kim, Gue-Chol (Dept. of Marine mechatronics, Mokp National Maritime University)
  • 김규철 (목포해양대학교 해양메카트로닉스학부)
  • Received : 2016.11.15
  • Accepted : 2017.02.24
  • Published : 2017.02.28
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Abstract

In this paper, dual band patch antenna was designed using a CSRR structure with negative values permeability which inserted into the ground plane. We propose an antenna that can be used in dual band f1(1.53GHz) and f2(1.63GHz) for satellite communications by using the CSRR placed on the backside of feeding line, which is a negative shape of SRR. The proposed antenna can be arrayed using microstrip line and can be made smaller than conventional patch antenna. The fabricated antenna has the input reflection coefficient of -12.5dB and -14.5dB at f1 and f2, and the gain of 2dB and -0.8dB, respectively. and it was confirmed that the performance was sufficient in the dual-band.

본 논문에서는 음의 투자율(negative values permeability)을 가지는 CSRR(: Complementary split ring resonator)를 안테나의 그라운드면에 적용하여 이중대역에서 사용가능한 마이크로스트립 패치안테나를 최적설계하였다. SRR의 음각형태인 CSRR을 안테나의 급전선 뒷면에 배치하여 대역저지특성을 만들고 이를 이용해서 위성통신에 사용하는 L-band의 두주파수 f1(1.53GHz), f2(1.63GHz)에서 사용가능한 안테나를 제안하였다. 제안한 안테나는 마이크로스트립라인을 이용하여 배열이 가능하고 기존의 패치안테나에 비해 소형으로 제작이 가능하다. 제작된 안테나는 f1과 f2에서 각각 -12.5dB, -14.5dB의 입력반사계수와 2.0dB, -0.8dB의 이득을 얻을 수 있어 이중대역에서 충분한 성능을 나타내는 것을 확인하였다.

Keywords

References

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