摘要
微带天线在各种内置天线通讯系统中有非常重要的应用。为满足便携式设备小型化的需要,该文提出一种端口封闭式微带贴片天线。此结构把微带天线的部分辐射端口用铜箔封闭,强行使磁壁变为电壁,从而改变了空腔内部电场,天线的辐射频率变低,使得微带天线的尺度大大减小。文中给出了天线的详细设计结构,并用空腔理论对不同封闭形式的微带天线进行了全面的理论分析。仿真结果与理论分析基本一致。同时仿真结果证明该设计天线的增益完全可以满足工程要求。
Microstrip Antennas have many applications in various communicational systems. To meet the requirement of miniaturization of the carry-home equipments, a compact microstrip antenna with ports sealed is presented. Based on the cavum theory, a new sealed structures is designed by changing the electric wall to magnetic wall so that decreases greatly the dimension of the antenna. The configuration of the antenna is simple and easy to fabricate. Details of the proposed antenna design and simulation results are presented and discussed. The simulation results agree well with the theory analysis.
出处
《电波科学学报》
EI
CSCD
北大核心
2007年第5期880-883,共4页
Chinese Journal of Radio Science
基金
国家自然科学基金项目支持(No60371040)
关键词
微带天线
端口封闭
小型化
频率
microstrip antenna, sealed ports, miniaturization, frequency
