Title :
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
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;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5524939
