第四代海事卫星通信陆地移动终端天线阵的设计  

Design of an antenna array for INMARSAT-4 mobile ground terminal

作　　者：付世强[1] 房少军[1] 王钟葆[1] 陈鹏[1] 

机构地区：[1]大连海事大学信息科学技术学院,辽宁大连116026

出　　处：《大连海事大学学报》2009年第2期65-67,71,共4页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(60771032)

摘　　要：为解决圆极化微带天线阵馈电网络较为复杂、工程实现较为困难这一问题,提供一种适用于宽带全球局域网陆地移动终端的天线阵简易设计方法.采用微带线三维过渡段倾斜馈电,利用方形贴片切角实现圆极化工作,并采用叠层单元结构连续旋转组成天线阵,使得天线的阻抗带宽(VSWR≤2)和轴比带宽(AR≤3 dB)分别达到35%和20%.实测结果表明,天线在整个海事卫星工作频带内驻波比小于1.5,增益高于13 dB.实测结果与仿真结果具有良好的一致性.To solve the conundrums such as complicacy of the feeding network and difficulty in realization about circularly polarized micro-strip antenna array, an antenna array for broadband glohal area network （BGAN）mobile ground terminal was developed. The circularly polarized radiation could he obtained by single-fed square patch with corner-truncated, and a stacked patch antenna array was constructed by using serially fed and sequentially rotated technique by adopting 3D transition mechanism. The impedance （VSWR≤2） bandwidth and axial ratio （AR≤3 dB） bandwidth could be achieved more than 3.5% and 20 % , respectively. The measured results show that the VSWR is less than 1.5 and the gain is better than 13 dB in the whole international maritime satellite organization （INMARSAT） communication operating bands. The measured results have agood agreement with the simulated results.

关 键 词：单馈电圆极化 叠层贴片天线 连续旋转技术 三维过渡段 宽带全球局域网(BGAN) 

分 类 号：TN828.5[电子电信—信息与通信工程]