Title :
A Novel Multimode Reduced-Surface-Wave Antenna for GNSS Applications
Author :
Hongmei Liu ; Shaojun Fang ; Zhongbao Wang
Author_Institution :
Sch. of Inf. Sci. & Technol., Dalian Maritime Univ., Dalian, China
Abstract :
A novel multimode reduced-surface-wave antenna is proposed for Global Navigation Satellite System (GNSS) applications. Based on the shorted-annular-ring reduced-surface-wave (SAR-RSW) element and the inverted-shorted-annular-ring reduced-surface-wave (ISAR-RSW) element, proximity-coupled probe feeds are adopted to increase impedance bandwidth, and the defected ground structure band-rejection filters are inserted to suppress the mutual coupling between the SAR-RSW and ISAR-RSW elements. Experiment results indicate that the antenna has a less than 10-dB return-loss bandwidth in the range of 1.164-1.255 and 1.552-1.610 GHz, a 3-dB axial-ratio bandwidth from 1.16 to 1.26 GHz and from 1.54 to 1.61 GHz, and a larger than 7-dBi gain in the whole operating band.
Keywords :
loop antennas; microwave antennas; satellite navigation; GNSS applications; ISAR-RSW element; SAR-RSW element; bandwidth 1.16 GHz to 1.26 GHz; bandwidth 1.164 GHz to 1.255 GHz; bandwidth 1.54 GHz to 1.61 GHz; bandwidth 1.552 GHz to 1.610 GHz; gain 10 dB; gain 3 dB; gain 7 dB; global navigation satellite system; ground structure band rejection filters; impedance bandwidth; inverted shorted annular ring reduced surface wave; novel multimode reduced surface wave antenna; shorted annular ring reduced-surface-wave; Antenna measurements; Antenna radiation patterns; Feeds; Global Positioning System; Loss measurement; Probes; Dual-band; multipath interference; reduced-surface-wave antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2294461
