The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design of GPS Antenna with Electromagnetically Coupled Slot Radiator(ECSR) for Mobile Handset Applications

전자기적 결합된 슬롯 방사체를 이용한 휴대단말기용 GPS 안테나 설계

  • Jung, Kang-Jae (Department of Wireless Communications Engineering, Kwang-Woon University) ;
  • Lee, Byung-Je (Department of Wireless Communications Engineering, Kwang-Woon University)
  • Published : 2009.07.31
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Abstract

In this paper, a GPS antenna is designed by using metal film which can be attached on the case of battery without additional space for antenna in GPS band operation. The proposed metal film has a half-wavelength slot radiator. The slot radiator is fed by th electromagnetic field coupled from the GSM850/PCS band antenna. The proposed GPS antenna obtains about 20 MHz bandwidth(VSWR<3) which can cover entire GPS band. The antenna has an average gain of -3.8 dBi.

본 논문에서는 안테나를 위한 추가적인 공간 없이 필름 구조의 0.5 ${\gamma}$ 슬롯 방사체를 휴대단말기 배터리 덮개에 부착시켜 GPS 안테나를 설계하였다. 이 슬롯 방사체는 GSM850/PCS 대역 안테나로부터 결합된 전자기장에 의해 급전되기 때문에 별도의 급전 구조 없이 설계가 가능하였다. 제안된 GPS 안테나의 대역폭은 정재파비 3:1 기준으로 20 MHz 이상으로 GPS 대역에 만족할 수 있고 -3.8 dBi의 만족할만한 평균 이득을 얻었다.

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References

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