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Broadband circular patch antenna with monopolar radiation pattern for indoor wireless communication

Published online by Cambridge University Press:  18 August 2016

Xi Wang Dai ,
Sheng Wen Mao  and
Tao Zhou
Xi Wang Dai*
Affiliation:
Institute of Antenna and Microwave Technology, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, China. Phone: +86-0571-86919150
Sheng Wen Mao
Affiliation:
Institute of Antenna and Microwave Technology, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, China. Phone: +86-0571-86919150
Tao Zhou
Affiliation:
Institute of Antenna and Microwave Technology, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, China. Phone: +86-0571-86919150
*
Corresponding author: X.W. Dai Email: [email protected]
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Abstract

A circular patch antenna with wide impedance bandwidth and monopolar radiation pattern for indoor wireless communication is proposed and analyzed in this paper. The antenna is a combination of circular patch and four capacitive feeds. By incorporating a cross-connected shorted conducting strip over the circular patch, the proposed antenna provides an enhanced impedance width of 65.4%, ranging from 1.46 to 2.88 GHz. Four capacitive feeds improve the design flexibility and make the ripple of horizontal radiation pattern less than 3 dB. A prototype of the proposed structure has been fabricated and measured. Both the simulated and measured results show that the proposed design has a stable monopolar radiation pattern over a wideband frequency range and a peak gain of 5.0 dBi, which can be widely applied for indoor wireless communication such as GSM1800, CDMA2000, WCDMA, and TD-LTE systems.

Keywords

Circular patch antennaMonopolar radiation patternCapacitive feedShorted conducting strip
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 4 , May 2017 , pp. 953 - 958
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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References

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