The Journal of Korea Institute of Information, Electronics, and Communication Technology (한국정보전자통신기술학회논문지)

Korea Information Electronic Communication Technology (한국정보전자통신기술학회)
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A Study on the Properties of UWB Circular Monopole Antenna with Folded Structure

접힌 구조의 UWB 원형 모노폴 안테나의 특성 연구

  • Lim, Gye-Jae (Department of Electronic Information and Communication Engineering of Catholic Kwandong University) ;
  • Yoo, Young-Tae (Department of Develop System of Korea Polytechnic University)
  • Received : 2015.03.20
  • Accepted : 2015.04.18
  • Published : 2015.04.28
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Abstract

In this paper, the performance variation of a planar circular monopole antenna is studied, when this antenna is fabricated to film type and installed in the space between case and PCB of UWB terminal. When the circular monopole part has the 'ㄷ' folded structure, the input impedance and return loss, bandwidth, radiation pattern of this antenna are simulated and measured. Then the performance variation is compared with conventional planar antenna. As the results, the folded type circular antenna is usable as a intenna of UWB communication terminal, because of the good return loss and radiation pattern performance in the 2.6 - 12 GHz including the UWB frequency band.

본 논문에서는 평면형 원형 모노폴 안테나를 필름형으로 설계하여 UWB 단말기의 내장형 안테나로 사용하는 경우에 좁은 틈새에서 접혀진 구조로 장착되었을 때, 안테나의 성능 변화에 대해 연구하였다. 원형 모노폴 부분을 'ㄷ' 자 대칭 구조로 접었을 때, 입력 임피던스 및 반사계수, 주파수 대역폭, 복사패턴의 변화를 시뮬레이션하고 측정하여 기존의 경우와 성능 변화를 비교하였다. 연구 결과, 접힌 구조의 UWB 원형 모노폴 안테나는 UWB 주파수 대역을 포함하는 2.6 - 12 GHz에서 양호한 반산계수 및 복사 성능을 보이고 있기 때문에 UWB 통신용 단말기의 내장형 안테나로 사용 가능함을 확인할 수 있었다.

Keywords

References

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