Cross-polarization suppression in C-shaped microstrip patch antenna employing anisotropic dielectrics  

作　　者：Hongyu Shi Shitao Zhu Jianxing Li Anxue Zhang Zhuo Xu 

机构地区：[1]School of Electronic and Information Engineering,Xi'an Jiaotong University Xi'an,Shaanxi 710049,P.R.China [2]Electronic Materials Research Laboratory and the Key Laboratory of the Ministry of Education Xi'an Jiaotong University,Xi'an,Shaanxi 710049,P.R.China

出　　处：《Journal of Advanced Dielectrics》2017年第4期29-33,共5页先进电介质学报（英文）

基　　金：supported in part by the National Natural Science Foundation of China under Grant 61501365,61601360,61471292,61331005;the China Postdoctoral Science Foundation under Grant 2015M580849.

摘　　要：An anisotropic dielectric realized by layered ceramic structures was adopted to design a low cross-polarization C-shaped patch antenna.The anisotropic dielectric performs as a substrate and can cause additional cross-polarized fields which are able to cancel the cross-polarized fields generated by the C-shaped patch itself,and then reduce the cross-polarization level.Compared to the C-shaped patch antenna with an isotropic substrate,the cross-polarization of the proposed antenna is suppressed by more than 15 dB with a little gain enhancement at 2.4 GHz.The anisotropic dielectric has a little impact on the direction of the C-shaped patch antenna.The gain of the proposed C-shaped patch antenna is 6.8 dB with a cross-polarization of
28 dB.

关 键 词：Anisotropic dielectrics layered ceramic structures low cross-polarization patch antennas 

分 类 号：TN8[电子电信—信息与通信工程]