Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Design and Performance Analysis of 5G Mobile Communication Array Antenna in Millimeter-Wave (mm-Wave) Band

밀리미터파(mm-Wave) 대역 5G 이동통신 Array 안테나의 설계와 성능분석 연구

  • Lee, Sung-hun (Convergence Technology Research Division, Gumi Electronics & Information Technology Research Institute) ;
  • Lee, Chang-Kyo (Convergence Technology Research Division, Gumi Electronics & Information Technology Research Institute) ;
  • Park, Jae-Hong (Convergence Technology Research Division, Gumi Electronics & Information Technology Research Institute) ;
  • Cho, Soo-Hyun (Convergence Technology Research Division, Gumi Electronics & Information Technology Research Institute) ;
  • Choi, Seung-Ho (Electronics Component R&D Center, LS Mtron Ltd) ;
  • Kim, Tae-Hyung (Electronics Component R&D Center, LS Mtron Ltd)
  • Received : 2020.07.10
  • Accepted : 2020.07.27
  • Published : 2020.09.30
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Abstract

In this study, we designed a single antenna taking into account the performance, such as return loss and radiation pattern, of 28 GHz and 38 GHz array antennas for 5G mobile devices. In millimeter wave band communication, high path loss occurs between transmission and reception, unlike in conventional microwave bands. In the design of array antennas for 5G millimeter wave terminals, antenna performance such as antenna gain, bandwidth, isolation between antenna elements, side-lobe level(SLL), etc. should be further considered. The performance of the designed array antennas was analyzed by spacing the antenna elements at half a wavelength. Our results proved the validity of the design and its suitability for applications in mm-Wave by showing that the 28 GHz and 39 GHz array antennas had antenna gains of 13.5 dBi and 11.3 dBi and return losses below -18.4 dB and -20 dB, correspondingly.

본 논문에서는 28 GHz와 38 GHz의5G 단말용 안테나 타입별 반사손실, 방사패턴 등의 성능을 고려하여 단일안테나를 설계하고, 안테나 소자를 반 파장 간격으로 배열하여 5G 단말용 배열안테나를 설계하였고 성능을 분석하였다. 밀리미터파 대역 통신에서는 기존의 마이크로파 대역에서와는 달리 송수신 간의 높은 경로손실이 발생한다. 5G 밀리미터파 단말용 배열안테나 설계에서는 안테나의 이득, 대역폭뿐만 아니라, 안테나 소자 간 격리도, side-lobe level(SLL) 등의 안테나 성능이 추가적으로 고려되어야 한다. 28GHz와 39GHz에서 제안하는 안테나 이득이 각각 약 13.5dBi 와 11.3dBi, 반사손실도 -18.4 dB과 -20 dB 이하의 측정 결과로부터 설계의 타당함을 입증하였고, 밀리미터파 대역 응용으로서도 적합함을 보였다.

Keywords

References

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