Title :
BeiDou navigation terminal multi-mode asymmetric slots circularly polarized microstrip antenna
Author :
Liu Zhigang ; Fang Shunyu ; Zhu Shouzheng ; Chen Dong ; Cao Jie ; Fu Lu ; Luo Yang
Author_Institution :
Sch. of Inf. Sci. Technol., East China Normal Univ., Shanghai, China
Abstract :
A novel multi-model, asymmetric slots microstrip antenna of BeiDou navigation system terminal is researched and proposed. It is a compact and right-handed circularly polarized (RHCP) antenna applied with reactive impedance surface (RIS) and complementary split-ring resonators (CSRR). Multi-mode is achieved by two layers stacked circular patches, fed by a single coaxial probe at axis location of patches to generate RHCP radiation by asymmetric slots. The proposed antenna results are: 10-dB impedance bandwidth (BW) =23MHz of B3 band (1250.618MHz-1286.423MHz), 10-dB impedance BW=30.9MHz of B1 band (1559.052MHz-1591.788MHz); 3dB axial ratio (AR) BW=8.6MHz of B3 band, 3dB AR BW=16.5MHz of B1 band; maximum gains are 1.94dB of B3 band at 1.27GHz and 5.4dB of B1 band at 1.58GHz. The multi-mode antenna can work in GPS and Galileo satellite navigation system terminals, apart from BeiDou navigation system. The antenna overall volume is 0.27λ0 × 0.27 λ0 × 0.035 λ0 at 1.27GHz.
Keywords :
electromagnetic wave polarisation; microstrip antennas; resonators; satellite navigation; slot antennas; BeiDou navigation system terminal; BeiDou navigation terminal multimode asymmetric slots circularly polarized microstrip antenna; CSRR; GPS; Galileo satellite navigation system terminals; RHCP radiation; bandwidth 16.5 MHz; bandwidth 23 MHz; bandwidth 30.9 MHz; bandwidth 8.6 MHz; complementary split-ring resonators; frequency 1.27 GHz; frequency 1.58 GHz; frequency 1250.628 MHz to 1286.423 MHz; frequency 1559.052 MHz to 1591.788 MHz; gain 1.94 dB; gain 5.4 dB; impedance bandwidth; multimode antenna; multimodel asymmetric slots microstrip antenna; reactive impedance surface; right-handed circularly polarized antenna; single coaxial probe; stacked circular patches; Dual band; Global Positioning System; Microstrip; Microstrip antennas; Satellite antennas; Slot antennas; BeiDou; CSRR; RHCP; RIS; asymmetric slots; compact; multi-mode;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992503
