新型圆柱介质栅毫米波全向漏波天线的改进微扰法分析  

Improved Perturbation Analysis of Millimeter-Wave Omni-Directional Periodic Dielectric Rod Antenna

作　　者：徐善驾[1] 马哲旺[1] 

机构地区：[1]中国科学技术大学,合肥230026

出　　处：《电子学报》1992年第6期89-92,共4页Acta Electronica Sinica

基　　金：国家自然科学基金;国家教委博士点基金

摘　　要：本文用改进的微扰法分析了一种新型圆柱介质栅毫米波全向漏波天线的辐射特性。文中将复杂的电磁场边值问题等效为有源径向传输线网络问题,简化了问题的求解过程。所得计算结果和用模匹配法得到的精确值以及实验测量值进行了比较,结果表明,本文方法精确、简便、实用。The characteristics of the omni-directional periodic circular dielectric rod leaky-wave antenna are analyzed by the improved perturbation method. The electromagnetic fields are described in terms of a radial transmission-line network, which brings considerable physical insight into the overall behavior of the periodic antenna. The analysis yields expression for the leakagd constant in a closed form, and the design procedure of the antenna is tremendously simplified. Comparisons between the approximate and [rigorous results, as well as the experimenal data, are made. It is found that the accuracy obtained from the perturbation analysis is adequate for practical design purposes.

关 键 词：圆柱介质栅 全向漏波天线 微扰分析 

分 类 号：TN822.6[电子电信—信息与通信工程]