Coaxial probe-fed circularly polarized microstrip antenna for BeiDou RDSS applications

Author

Wu, Su-Qin ; Liu, Shao-bin ; Guo, Zhen

Author_Institution

Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2010

fDate

8-11 May 2010

Firstpage

297

Lastpage

299

Abstract

Circularly polarized(CP) square microstrip antenna used in Beidou RDSS is proposed and discussed in this paper. Four slits and two truncated corners were cut out from the patch. Via a coaxial probe feeding at an appropriate position, right-hand circularly polarization(RHCP) operation is achieved at 2.492 GHz with a 10 dB impedance bandwidth of about 40 MHz and 3 dB axial bandwidth of about 10 MHz. The prototype has been simulated, manufactured, measured and found to have a dovetailed result to the emulation. With the four inserted slits, the patch size of the antenna has been decreased compared to the conventional corner-truncated square microstrip antenna without slits. The gain of the antenna is about 7.5 dBi across the impedance bandwidth on average.

Keywords

microstrip antennas; mobile satellite communication; Beidou RDSS; antenna gain; axial bandwidth; coaxial probe-fed circularly polarized microstrip antenna; frequency 2.492 GHz; gain 10 dB; gain 3 dB; impedance bandwidth; patch size; right-hand circularly polarization operation; slits; truncated corners; Antenna measurements; Bandwidth; Coaxial components; Emulation; Impedance; Microstrip antennas; Polarization; Probes; Virtual manufacturing; Virtual prototyping; Beidou RDSS; circularly polarization; microstrip antenna;

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.2010.5524939

Filename

5524939