Compact Ultra-wideband Microstrip Antenna with Metamaterials
XIONG Han** , HONG Jin-Song, ZHU Qing-Yi, JIN Da-Lin
School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054
Abstract ：An improved compact ultra-wideband (UWB) microstrip antenna with metamaterials is proposed. The total size is slightly reduced and the measured impedance bandwidth operates from 3.84 to 22.77 GHz for a return loss of less than ?10 dB. Compared with the original patch antenna, the bandwidth of this antenna is about six times broader. Moreover, the antenna has an average gain of 6.2 dB, which is 1.2 dB larger than the original one. Both strong radiation in the horizontal direction and practical characteristics are observed. Thus, this antenna would have some specific applications for UWB wireless communications in the future.
收稿日期: 2012-05-21
出版日期: 2012-11-28
:
41.20.Jb
(Electromagnetic wave propagation; radiowave propagation)
84.40.Ba
(Antennas: theory, components and accessories)
84.40.Az
(Waveguides, transmission lines, striplines)
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2012, Vol. 29 
