A Novel Broadband High-Isolation Cross Dipole Utilizing Strong Mutual Coupling

摘要：

　　A novel broadband cross dipole with nigh isolation and low cross polarization is presented in this paper.By skillfully utilizing the strong mutual coupling between the two dipoles,very good impedance match, sufficiently high isolation and low cross polarization can be achieved simultaneously.To get a directional radiation pattern, a metal reflector is placed under the antenna.The simulated measured results show that a more than 56% impedance bandwidth for SWR<I.5 from 1.66GHz to2.96GHz is achieved , within which the port isolation is larger than 30dB.As an important advantage, the input impedance of the antenna can be changed within certain limits by properly adjusting the configuration, thus the antenna can be fed directly by 50-ohm coaxial cables without using impedance transformers.Particularly, the mechanisms for wide impedance bandwidth and high port isolation are discussed in this paper.

作者: Zengdi Bao Xianzheng Zong Zaiping Nie

作者单位: University of Electronic Science and Technology of China NO.4, Section 2, North Jianshe Road Chengdu, Sichuan 610054 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: 1237-1240

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）