南京信息工程大学学报2019，Vol.11Issue(1)：53-56,4.DOI:10.13878/j.cnki.jnuist.2019.01.010
一种用于GPS的小型化全向圆极化天线设计
A miniaturized omnidirectional circularly polarized antenna design for GPS applications
摘要
Abstract
Circularly polarized antennas play an important role in communication through satellite navigation, radar, and information confrontation.In this letter, a miniaturized circularly polarized antenna operating in the GPS L1 band (1. 575 GHz) is proposed. The proposed antenna possesses the advantages of having a low profile, small size, and compact structure, which in turn imply superior omnidirectional circular polarization.The radiation structure of the proposed antenna comprises a four-axis arched patch and a direct feeding metallic pin.Four inner additional arcs and four shorting pins were introduced for achieving the antenna miniaturization.The proposed design was verified by employing the Ansoft HFSS 16. 1 simulation tool.The simulation results indicate that the proposed circularly polarized antenna matches well at the frequency of 1. 575 GHz.Furthermore, the axial ratio is found to be less than 3d B at the operating frequency band and the peak gain can reach a value of 0. 2 dBic.关键词
全向圆极化/短路针/轴比/低剖面Key words
omnidirectional circular polarization/shorting pins/axial ratio/low-profile分类
信息技术与安全科学引用本文复制引用
王晨阳,刘英,贾永涛,王侃..一种用于GPS的小型化全向圆极化天线设计[J].南京信息工程大学学报,2019,11(1):53-56,4.基金项目
国家自然科学基金 (61871309, 61801346) （61871309, 61801346）
