A Conical Quadrifilar Helix Antenna for GNSS Applications

摘要：

　　A broadband conical quadrifilar helix antenna is presented in this paper.The broadband characteristic is achieved by tapering the helices, utilizing conical geometry and adjusting the dimensions of the cone-shape support.The bandwidth,defined for a VSWR<2, is about 25% across 11S5-1327MHz and1447-1617MHz, covering all of the frequencies of Global Navigation Satellite System including GPS, GLONASS, Galileo and Compass.The antenna is fed by a wideband four-outputports feed network with equal magnitude and consistent 90°phase shift.The final antenna obtains excellent circular polarisation, a good gain (greater than 4.5dB at boresight) and good axial-ratio performance over a wide angular range for Global Navigation Satellite System applications.

关键词： Conical Quadrifilar Helix Antenna Global Navigation Satellite System (GNSS) wideband feed network

作者: Baiquan Ning Juan Lei Yongchao Cao Liang Dong

作者单位: National Key Laboratory of Antenna and Microwave Technology, Xidian University Xian, 710071, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Antennas and Propagation(2013天线与传播国际会议)

会议地点: 南京

会议语种:英文

页码: 543-546

在线出版日期: 2013-10-23（万方平台首次上网日期，不代表论文的发表时间）