The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Development of Printed Bow-tie Antenna with 3 ~ 5 GHz Broadband Characteristics for Testing the Electromagnetic Immunity of Automotive Electrical Components in the 5G Frequency Band

5G 주파수 대역의 자동차 전장품 전자기파 내성 평가를 위한 3 ~ 5 GHz 광대역 특성의 인쇄형 bow-tie 안테나 개발

  • Ko, Ho-jin (Dept. of EMI/EMC R&D Center, Korea Automotive Technology Institute (KATECH)) ;
  • Choi, Beom-jin (Dept. of EMI/EMC R&D Center, Korea Automotive Technology Institute (KATECH)) ;
  • Park, Ki-hun (Dept. of EMI/EMC R&D Center, Korea Automotive Technology Institute (KATECH)) ;
  • Woo, Jong-myung (Dept. of Radio Science and Engineering, Univ. of Chungnam National)
  • 고호진 (한국자동차연구원 전자기파연구센터) ;
  • 최범진 (한국자동차연구원 전자기파연구센터) ;
  • 박기훈 (한국자동차연구원 전자기파연구센터) ;
  • 우종명 (충남대학교 전자전파정보통신공학과)
  • Received : 2020.04.21
  • Accepted : 2020.05.26
  • Published : 2020.06.30
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Abstract

This paper proposes printed bow-tie antennas with 3 ~ 5 GHz broadband characteristics were proposed for testing the electromagnetic immunity of automotive electrical components in the 5G frequency band. The antenna get -10 dB bandwidth in the 2.75 ~ 6 GHz frequency band and the broadside radiation pattern with S11 characteristic of -16.2 dB at resonant frequency. In testing electromagnetic immunity in the 5G mobile communication frequency band, the VSWR characteristic remained below 2.1, forming a level of 1 W as proposed by international standards. As a result, it is confirmed that the proposed antenna can be applied to antenna testing for electromagnetic immunity verification in the 5G mobile communication frequency band.

본 논문에서는 5G 이동통신 주파수 대역에서 자동차 전장품 전자기파 내성 평가를 위한 3 ~ 5 GHz 광대역 특성의 인쇄형 bow-tie 안테나를 제안하였다. 제안된 안테나는 2.75 ~ 6 GHz 주파수 대역에서 -10 dB 대역폭을 만족하였고, 공진 주파수 대역에서 S11 특성이 -16.2 dB 이하의 특성을 보이면서 방사 패턴은 broadside한 형태를 얻었다. 또한, 실제 5G 이동통신 주파수 대역에서의 전자기파 내성 평가를 수행함에 있어서도, 국제 표준에서 규제하는 VSWR 특성이 2.1 이하의 특성을 유지하면서도 기준 레벨인 1 W의 레벨을 문제없이 형성하였다. 이러한 결과를 통하여, 제안된 안테나는 5G 이동통신 주파수 대역에서 전자기파 내성 검증을 위한 평가용 안테나로 적용할 수 있음을 확인하였다.

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References

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