Design of broadband circularly polarized high gain microstrip antenna with L-shaped probe feed

Author

Jia, Jianxin ; Lu, Chunlan ; Li, Zhanmeng ; Jie, Yang

Author_Institution

Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

Volume

3

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

4

Abstract

A wideband circularly polarized high gain microstrip antenna is presented. The radiating patch is fed by two L-shaped probe feeds connected with a feed network of a 90° hybrid coupler. The antenna delivers a measured impedance bandwidth of 54.5% from 2.64 to 4.62 GHz for SWR <; 2, measured 3-dB axial-ratio bandwidth of 36.7% from 3.05 to 4.4 GHz, respectively. The simulated impedance bandwidth is 55.7% from 2.74 to 4.86 GHz for SWR <; 2. The simulated 3-dB axialratio bandwidth is 33.9% from 3.35 to 4.68 GHz and simulated 3-dB gain bandwidth is 28.8% from 3.48 to 4.65 GHz with peak gain of 9.6dBi.

Keywords

UHF antennas; antenna feeds; broadband antennas; microstrip antennas; microwave antennas; L-shaped probe feeds; bandwidth 2.64 GHz to 4.86 GHz; broadband circularly polarized high gain microstrip antenna; gain 3 dB; hybrid coupler; radiating patch; wideband circularly polarized high gain microstrip antenna; Antenna measurements; Bandwidth; Feeds; Gain; Impedance; Microstrip; Microstrip antennas; L-probe feed; broadband; circularly polarized antenna; high gain;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230173

Filename

6230173