国际海事卫星地面终端天线阵单元的设计  

Design of INMARSAT Ground Terminal Antenna Array Element

作　　者：张亚斌[1] 黎滨洪[1] 刘毅军[1] 

机构地区：[1]上海交通大学电子工程系,上海200030

出　　处：《上海交通大学学报》2004年第5期722-724,共3页Journal of Shanghai Jiaotong University

摘　　要：提供了一个详细的国际海事卫星地面终端天线阵单元的设计,该设计采用单馈点圆极化口径耦合的多层微带天线形式,使用低价格、低介电常数的泡沫塑料,以降低成本和拓宽天线的阻抗带宽.测量结果表明,天线的阻抗带宽(电压驻波比,VSWR≤2)和圆极化带宽(轴比AR≤3dB)分别达到18.8%和12.3%.同时,天线在1593MHz的增益达到9.4dBi.This paper presented a design of microstrip antenna array element for INMARSAT ground terminal applications. In the design, low-cost plastic foam with low permittivity was used for enhancing the impedance bandwidth of antenna. The impedance bandwidth for VSWR&le2 and circular polarization bandwidth for axial ratio AR&le3 dB reached 18.8% and 12.3%, respectively. 9.4 dBi gain at 1593 MHz was also achieved. The measurement results verify the applicability of the design.

关 键 词：天线阵单元 口径耦合 圆极化 微带天线 

分 类 号：TN802[电子电信—信息与通信工程]