Title :
A novel center-fed dual-band circularly polarized antenna for GNSS applications
Author :
Xiao Deng Duan ; Rong Lin Li
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
Abstract :
A novel center-fed Global Navigation Satellite System (GNSS) antenna is proposed in this paper. The antenna is composed of two layers of microstrip patches, a folded ground plane and three choke rings. Simulated and measured results show that two frequency bands for return loss >10 dB cover GPS L2 (1.193~1.247 GHz) and GPS L1 (1.545~1.625 GHz) with good axial ratio (AR) performance. The radiation patterns with AR<;3 dB cover the whole half upper space and the forward to backward ratio (FBR) is higher than 30 dB in the operating bands. The antenna is suitable for GNSS applications.
Keywords :
Global Positioning System; antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; multifrequency antennas; AR performance; GPS L1; GPS L2; axial ratio performance; center-fed GNSS antenna; center-fed dual-band circularly-polarized antenna; choke rings; folded ground plane; forward-to-backward ratio; frequency 1.193 GHz to 1.247 GHz; frequency 1.545 GHz to 1.625 GHz; global navigation satellite system; microstrip patches; radiation patterns; Antenna measurements; Antenna radiation patterns; Frequency measurement; Global Positioning System; Inductors; Microstrip antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904835
