Summary
International Symposium on Antennas and Propagation
2006
Session Number:1POS
Session:
Number:1POS-7
CPW-fed ground short-circuited staircase rectangular monopole UWB antenna
H.S. Lee, J.W. Baik, Y.S. Kim,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
In this paper, a planar CPW-fed ground short-circuited staircase rectangular monopole antenna is proposed for UWB systems. By connecting ground plane at the edge of a staircase rectangular monopole, lower edge resonance frequency moves from 3.5GHz to 2.66GHz in the proposed antenna, hence wide impedance bandwidth can be obtained. The proposed antenna, which includes two-step impedance transformed CPW feed and four-step rectangular patch, experimentally reaches a measured -10 dB impedance bandwidth of 12.11 GHz (from 2.66 to 14.77 GHz) covering the entire UWB band. Also, a moderate gain variation from 1.87 to 5.18 dBi and a monopole-like radiation pattern are obtained. The measured results are in good agreement with the simulated results.