Design and Fabrication of a CPW-Fed Monopole Antenna using Inverted L type DGS Structures

역L형 DGS를 이용한 CPW급전 모노폴안테나 설계 및 제작

  • Ryu, Cheong-Ho (School of Electrical and optical communication Engineering, Gwangju Univ.) ;
  • Jung, Chang-Gyun (School of Electrical and optical communication Engineering, Gwangju Univ.) ;
  • Kim, Jeong-Geun (School of Electrical and optical communication Engineering, Gwangju Univ.)
  • 류청호 (광주대학교 전자광통신공학과) ;
  • 정창균 (광주대학교 전자광통신공학과) ;
  • 김정근 (광주대학교 전자광통신공학과)
  • Published : 2005.11.05

Abstract

In this paper, a CPW-fed monopole antenna using inverted L-type DGS structures is proposed and investigated experimentally. The proposed antenna is fabricated into FR4 substrate with dielectric constant($\varepsilon$r=4.5). Measured results show that the impedance bandwidth, determined from 10-dB return loss, for frequencies between 5.7250Hz-5.825CHz under the condition of VSWR$\leqq$2 is about 540MHg.

Keywords

CPW(Coplanar waveguide);DGS(Defected Ground structure)