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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Multi-Band Chip Slot Antenna for Mobile Devices

무선 통신 기기에 적합한 다중 대역 칩 슬롯 안테나

  • Nam, Sung-Soo (Department of Electronic Engineering, Kyonggi University) ;
  • Lee, Hong-Min (Department of Electronic Engineering, Kyonggi University)
  • 남성수 (경기대학교 전자공학과) ;
  • 이홍민 (경기대학교 전자공학과)
  • Published : 2009.12.31
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Abstract

In this paper, the chip slot antenna which is used for mobile devices and designed for multi-band is proposed. The proposed antenna is comprised of a chip antenna(10 mm$\times$20 mm$\times$1.27 mm) and a system circuit board(30 mm$\times$60 mm$\times$0.8 mm). The chip slot antenna is mounted on the system circuit board and the end of F-type strip line which is patterned on the chip antenna is connected by a via with a ground plane of the system circuit board. So, a chip antenna radiates effectively the energy by transition between a microstrip line of the system circuit board and a open slot structure of the chip antenna. In the results of proposed antenna, impedance bandwidth of 3:1 VSWR(-6 dB return loss) is 1.98 GHz(1.61~3.59 GHz) and 0.8 GHz(5.2~6 GHz). So, it can cover multi-band of DCS, PCS, UMTS, WLAN. The proposed antenna can be applied to mobile devices.

본 논문에서는 이동 무선 통신 기기에 적합하고 다중 대역에서 동작하도록 설계된 칩 슬롯 안테나를 제안하였다. 제안된 안테나는 시스템 회로 기판(30 mm$\times$60 mm$\times$0.8 mm) 위에 칩 안테나(10 mm$\times$20 mm$\times$1.27 mm)를 접속시킨 구조이며, 안테나의 F자 형태의 패턴의 끝단은 비아를 통해 시스템 회로 기판과 연결되어졌다. 따라서 칩 안테나는 시스템 회로 기판의 마이크로스트립 선로로부터 접지면 슬롯 사이의 전이(transition)를 통하여 효과적으로 에너지를 방사한다. 제작된 안테나의 측정 결과 3:1 VSWR 임피던스 대역폭($\leq$-6 dB)은 1.98 GHz(1.61~3.59 GHz)와 0.8 GHz(5.2~6 GHz)로 나타났다. 제안된 안테나는 DCS, PCS, UMTS, WLAN의 주파수 대역을 만족함으로 무선 통신 기기에 적용 가능할 것으로 사료된다.

Keywords

References

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