DocumentCode :
3231689
Title :
Application of broadband microstrip patch antenna as a perfect substitute for monopole antenna
Author :
Chen, J. ; Fu, G. ; Wu, G.-D. ; Gong, S.-X.
Author_Institution :
Key Nat. Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
fYear :
2010
fDate :
8-11 May 2010
Firstpage :
321
Lastpage :
324
Abstract :
A novel broadband omni-directional circular patch antenna is proposed to substitute for a broadband monopole antenna for its proverbial advantages. Considering the inherent narrow bandwidth of conventional microstrip patch antennas, electromagnetic coupling feed technology, shorting pins and matching network designed by means of genetic algorithm (GA) optimizers are used simultaneously to broaden the bandwidth of this circular patch antenna. This presented microstrip circular patch antenna can reach a bandwidth of 65% for voltage standing-wave ratio (VSWR) less than 2.3, and its least horizontal gain is greater than 0.2 dB which is almost the same as that of a monopole antenna working in this frequency band. Its horizontal pattern is as omni-directional as that of a monopole antenna, which enable it to replace a broadband monopole antenna commendably. The experimental results and simulation results agree with each other well.
Keywords :
antenna feeds; antenna radiation patterns; broadband antennas; genetic algorithms; microstrip antennas; monopole antennas; broadband monopole antenna; broadband omnidirectional circular patch antenna; electromagnetic coupling feed technology; genetic algorithm optimizers; matching network; voltage standing-wave ratio; Algorithm design and analysis; Bandwidth; Broadband antennas; Design optimization; Electromagnetic coupling; Feeds; Genetic algorithms; Microstrip antennas; Patch antennas; Pins;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
Type :
conf
DOI :
10.1109/ICMMT.2010.5524950
Filename :
5524950
Link To Document :
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