一种新型高增益宽带圆极化天线阵列的设计  

A Novel Design of Wideband Circular Polarization Antenna Array with High Gain Characteristic

作　　者：陶啸[1] 高原[1] 马凯[1] 刘晓磊[1] 杨林[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,西安710071

出　　处：《微波学报》2010年第S1期136-138,共3页Journal of Microwaves

摘　　要：分析了一种具有高增益的宽带圆极化天线。每一个单元都是双面印刷偶极子,为了展宽带宽,采用了宽频带90°巴伦作为馈电网络用于给偶极子阵列馈电。在此基础上,制作了一个2×3元小型圆极化平面阵,为了压缩尺寸,将馈电网络位于介质板的底层,该天线最高增益可以达到14.2dBi,并可以获得64%(VSWR<2)的阻抗带宽和54.5%(AR<3)的轴比带宽。A broadband of circularly polarized(CP)patch antenna with high gain characteristic has been presented in this paper.Each element used is a double-side printed dipole.In order to improve axial ratio bandwidth,wideband 90° hybrids are used as feeding network.Then,a planer array with 2×3 elements is fabricated,The feeding network is located on the lower side of the substrate for compacting the size.6 array elements are used in a 2×3 configuration to achieve a maximum gain target of 14 dBi.However,it will enlarge the overall size of the antenna.The feeding network is located on the lower side of the substrate for compacting the size.This antenna achieve a maximum gain of 14 dBi,and it can possesses an impedance(VSWR<2)bandwidth of 64%,and axial ratio(AR<3dB)bandwidth of 54.5%.

关 键 词：偶极子阵列 圆极化 高增益 宽带 

分 类 号：TN821.1[电子电信—信息与通信工程]