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Design and Fabrication of a Rectangular Spiral Type Antenna for 433 MHz

433 MHz TPMS용 직각 스파이럴 구조 안테나 설계 및 제작

  • Oh, Sung-Kon (Department of Electronic Engineering, Soongsil University) ;
  • An, Jun-O (Institute for Future Radio Engineering) ;
  • Kim, Boo-Gyoun (Department of Information Technology & Electronic Engineering, Soongsil University)
  • 오승곤 (숭실대학교 전자공학과) ;
  • 안준오 (미래전파공학연구소) ;
  • 김부균 (숭실대학교 정보통신전자공학부)
  • Received : 2012.04.04
  • Accepted : 2012.05.11
  • Published : 2012.06.30

Abstract

In this paper, the rectangular spiral shaped antenna is designed and fabricated for 433 MHz TPMS. Proposed antenna has the -10 dB impedance bandwidth of 23 MHz(427~450 MHz). The antenna is fabricated with the size of $5mm(W){\times}23mm(D){\times}10mm(H)$ by brass material. Return loss is below -10 dB at 433 MHz${\pm}$10 MHz mounted tire wheel and not mounted both. The radiation power is -44.21 dBm without wheel and -50.0 dBm installed wheel. The proposed antenna can be practical use through data transmission test results.

본 논문은 타이어 휠로 인한 전파의 감쇄를 최소화하기 위해 직각 스파이럴 형태의 TPMS용 송신 안테나를 설계하고 제작하였다. 설계된 안테나의 433 MHz 주파수에서의 $S_{11}$은 시뮬레이션 결과, -10 dB 대역폭이 23 MHz(427~450 MHz)가 확보되었으며, 설계된 안테나를 두께 0.3 mm인 황동 재질로 $5mm(W){\times}23mm(D){\times}10mm(H)$의 크기로 제작한 후 반사 손실을 측정한 결과, -10 dB 대역폭이 433 MHz${\pm}$10 MHz로 충분한 대역폭이 확보됨을 확인하였다. 제작된 안테나의 방사 전력은 휠에 미부착시 -44.21 dBm, 휠에 장착 시 -50.0 dBm으로 측정되었으며, 실제 데이터 송수신 테스트를 통해 실용화가 가능함을 확인할 수 있었다.

Keywords

References

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