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.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2004年第5期722-724,共3页
Journal of Shanghai Jiaotong University
关键词
天线阵单元
口径耦合
圆极化
微带天线
Bandwidth
Design
Electric impedance
Microstrip antennas
Synthetic apertures
