现代电子技术2024，Vol.47Issue(17)：19-23,5.DOI:10.16652/j.issn.1004-373x.2024.17.003
短接贴片加载的双频圆极化卫星导航天线
Dual-band circularly polarized satellite navigation antenna with shorted patch loading
刘永华 1林福民 1张华福2
作者信息
- 1. 广东工业大学 物理与光电工程学院,广东 广州 510006
- 2. 广州中海达卫星导航技术股份有限公司,广东 广州 511400
- 折叠
摘要
Abstract
A compact patch antenna with dual-coupled shorted patch loading for the dual-band global positioning system(GPS)is introduced to reduce the complexity and cost of the design of dual-band circularly polarized antenna.The shorted patch loading technique is employed in the antenna,so the overall dimensions of the antenna is only 42 mm×42 mm×9 mm,and the ultra-low-cost PPO plastic is utilized instead of the substrates with high dielectric constants,so as to achieve the cost reduction.The proposed compact dual-coupled shorted patch loading technique enables the antenna to resonate at the L1/L2 GPS frequency bands.At these bands,the antenna demonstrates good performance in the presence of a ground plane.Its circularly polarized radiation gains reach 3.12 dBic at the L2 band and 4.08 dBic at the L1 band,which indicates high gain performance.Additionally,the 3 dB gain bandwidths of the antenna at the two frequency bands are 31 MHz and 43 MHz,respectively.Therefore,the proposed antenna not only possesses the characteristics of low cost,dual-band and compactness,but also exhibits good performance at the L1/L2 GPS frequency bands,so it is an ideal patch antenna.The design and fabrication of the antenna are of great significance for the GPS application,and can meet the antenna demands of low cost and high performance.关键词
圆极化/GPS/微带天线/双频/低成本/短路加载Key words
circular polarization/GPS/microstrip antenna/dual band/low cost/shorted loading分类
信息技术与安全科学引用本文复制引用
刘永华,林福民,张华福..短接贴片加载的双频圆极化卫星导航天线[J].现代电子技术,2024,47(17):19-23,5.
