A wideband circularly polarized microstrip antenna with capacitively coupled feed

Author

Jia-hui, Fu ; Peng, Chen ; Chang-Hong, Song ; Qun, Wu ; Jun, Hua

Author_Institution

Microwave Eng. Dept., Harbin Inst. of Technol., Harbin, China

Volume

1

fYear

2011

Firstpage

537

Lastpage

540

Abstract

In this paper, a wideband circularly polarized (CP) microstrip antenna with capacitively coupled feed is presented. There is a pair of slits and two pairs of truncated corners on the patch. A metallic disk connected to a 50Ω SMA connector is placed below the patch. Simulation results show that the return loss is below -10dB and the BW is 34.2% from 1.84GHz to 2.60GHz. The CP center frequency is 2.35GHz with a CP BW of 8.51%. Good right-hand CP radiation is observed and the gain is about 8.0dB at 2.35GHz. The only metal of the proposed antenna is aluminum and it has the advantage of easy fabrication and low cost.

Keywords

antenna feeds; antenna radiation patterns; broadband antennas; microstrip antennas; polarisation; SMA connector; aluminum; antenna radiation pattern; capacitively coupled feed; circular polarisation; metallic disk; resistance 50 ohm; truncated corners; wideband circularly polarized microstrip antenna; Antennas; Connectors; axial ratio; capacitively coupled feed; microstrip antenna; wideband circularly polarized;

fLanguage

English

Publisher

ieee

Conference_Titel

Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011

Conference_Location

Harbin

Print_ISBN

978-1-4244-9792-8

Type

conf

DOI

10.1109/CSQRWC.2011.6037005

Filename

6037005