A CPW-Fed Band-Notched UWB Antenna with T-shape Construct and Matching Branches

作者

  • A. Chen School of Electronic and Information Engineering Beihang University, Beijing 100191, China
  • C. Yang School of Electronic and Information Engineering Beihang University, Beijing 100191, China
  • Z. Chen Department of Electrical and Computer Engineering Dalhousie University, Halifax, NS B3J 2X4, Canada
  • K. AN School of Electronic and Information Engineering Beihang University, Beijing 100191, China
  • J. Fang School of Electronic and Information Engineering Beihang University, Beijing 100191, China
  • W. Jiang School of Electronic and Information Engineering Beihang University, Beijing 100191, China

关键词:

Antenna, band notching, coplanar waveguide (CPW), impedance matching, ultra-wideband (UWB)

摘要

A compact coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with a bandnotched performance is presented in this paper. The band-notched UWB antenna is designed on a 26×34×1.6 mm3 substrate. It consists of a circle ring with a T-shape construct, three rectangular matching branches, a rectangular transition branch, and a CPW feed line. The antenna is simulated and the geometrical parameters of the antenna selected with Ansoft HFSS. The simulated results show the impedance bandwidth covers from 3.0 GHz to 11.0 GHz with the notched rejection band of 5.1 GHz - 5.8 GHz. A prototype was fabricated and tested. The measured and simulated results show that the proposed antenna gives bidirectional radiation pattern in the E-plane and omnidirectional radiation pattern in the Hplane with relatively flat gains in the pass-band. Due to its compact configuration, the antenna can find good UWB applications.

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参考

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已出版

2021-09-03

栏目

General Submission