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Improvement of Radiation Performance of Mobile Phone Antenna Using PIFA on U-Shaped Ground Plane

U-형 접지면 상에 배치된 평판형 역 F 안테나 구조를 이용한 휴대폰 단말기의 무선 성능 개선

  • Lee, Jeong-Ho (Dept. of Electrical and Electronics Engineering, Yonsei University) ;
  • Song, Jae-Kwan (Mobile Handset R&D Center, Mobile Communications Company, LG Electronics Inc.) ;
  • Yook, Jong-Gwan (Dept. of Electrical and Electronics Engineering, Yonsei University)
  • 이정호 (연세대학교 전기전자공학과) ;
  • 송재관 (LG 전자 MC사업본부 MC연구소) ;
  • 육종관 (연세대학교 전기전자공학과)
  • Published : 2010.01.31

Abstract

In this paper, we propose antenna topology and ground plane shape to improve the performance of PIFA (Planar Inverted F Antenna) which is built-in mobile phone. First, we designed the PIFA antenna consists of multiple radiators to provide multi-current paths. Then we designed U-shaped ground plane on the PCB under the antenna. The proposed antenna structure shows TRP/TIS improvement of 2.0 dB/3.7 dB for GSM and 2.2 dB/ 2.0 dB for DCS and 0.8 dB/1.5 dB for PCS and 1.3 dB/0.7 dB for WCDMA at the free space.

Keywords

PIFA;Ground Plane;Mobile Phone Handset;TRP;TIS

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