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A Study on Microstrip Patch Array Antenna Integrated on SIW Network for SoS

SoS를 위한 SIW 망에 집적된 마이크로스트립 패치 어레이 안테나에 관한 연구

  • 기현철 (가천대학교 전자공학과)
  • Received : 2018.07.29
  • Accepted : 2018.10.05
  • Published : 2018.10.31

Abstract

In this paper, We intended to design various things for the realization of SoS(System on Substrate) with SIW in 24GHz ISM 밴드(24-24.25GHz). As part of them, We integrated SIW, transition and MPAA as SoS on the same substrate and investigated its characteristics. We used Rogers Ro4350 with relative permittivity of 3.48 and thickness of 20mil. As results of optimal design, insertion loss of the SIW with 11.55mm length showed 0.32dB and insertion loss of 0.19dB occurred in transition to $50{\Omega}$ microstrip. Characteristics of the MPAA integrated on the same substrate as SoS are very similar to those of stand-alone MPAA. But the integrated MPAA decreased by 0.58dB in gain, which is the sum of SIW insertion loss and transition insertion loss, and by 0.7dB in SLL compared that of stand-alone MPAA. However, the bandwidth was increased by 19.4% as it changed from 670MHz to 800Mhz.

본 논문에서는 24GHz ISM 밴드(24-24.25GHz)에서 SIW를 이용한 SoS(System on Substrate)구현을 위한 제반 설계를 하고자하며 그 일환으로 SIW, 전환기 및 MPAA를 SoS형태로 동일 기판에 집적하여 그 특성을 분석하였다. 기판은 비유 전율이 3.48이고 두께가 20mil인 Rogers사의 Ro4350을 사용하였다. 최적 설계결과 길이 11.55mm의 SIW의 삽입손실은 0.32dB를 보였으며 $50{\Omega}$ 마이크로 스트립으로 신호전환 하는 데 0.19dB의 삽입손실이 발생하였다. SoS형태로 동일 기판에 집적된 MPAA의 특성은 단독 MPAA의 특성과 매우 유사했다. 그러나 집적된 MPAA는 단독 MPAA에 비해 이득 면에서는 SIW와 전환기의 삽입손실 만큼(0.58dB) 감소했으며 SLL은 0.7dB만큼 감소하였다. 반면에 대역폭은 670MHz에서 800MHz로 19.4%만큼 증가하였다.

Keywords

References

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