Single Feed Broadband Circularly Polarized Antenna With Parasitic Patch

摘要：

　　A single feed broadband circularly polarized(CP)antenna is proposed.The antenna is composed of single feeding loop structure which provides sequential phase,four driven patches,and one parasitic patches.The driven patches,which are capacitively coupled by the feeding structure,generate one CP mode due to the sequentially rotated structure.One parasitic patch produces additional CP mode.By combining single feeding loop structure with four driven patches and one parasitic patch,the axial ratio(AR)bandwidth is greatly broadened.The results of the simulation show that the antenna achieves a broad impedance bandwidth of 20.7%(4.38–5.39 GHz)and a 3-dB AR bandwidth of 14.2%(4.65–5.36 GHz).In addition,the proposed antenna has a flat gain within the operating frequency band and a size of Φ0.97λ0×0.15λ0 at 5.0 GHz.

关键词： circularly polarized (CP) single feeding loop structure parasitic patch

作者: Zepei Jiang Fushun Zhang

作者单位: National Laboratory of Antennas and Microwave Technology Xidian University,Xian,Chian

会议类型: 国际会议

会议名称: The 12th International Symposium Antennas, Propagation, and EM Theory(ISAPE 2018)?(第十二届天线、传播与电磁理论国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 1-3

在线出版日期: 2018-12-03（万方平台首次上网日期，不代表论文的发表时间）