新型NRD波导漏波天线特性分析

Analysis of Characteristics for Novel NRD-Guide Leaky Wave Antenna

本文利用多模网络理论结合模匹配技术对任意横截面NRD波导漏波天线的辐射特性作了系统的分析 ,这些天线可以作为低成本的实用天线应用在毫米波系统中 .文中着重研究了结构参数的变化对天线辐射特性的影响 .这些计算结果对这类新型漏波天线的设计和确定NRD波导作为传输结构时的制作容差有重要的指导意义 .

Leaky wave characteristics of a class of NRD guides with arbitrary cross section are systematically studied for their potential applications as low cost millimeter wave antenna.A numerical technique is applied to model these irregular structures,which is formulated by combining effectively a multimode network theory with a mode matching method.Our emphasis is laid on the investigation of parametric effects on leakage properties of the NRD guide.Extensive results are presented to derive some useful guidelines for the design of the new types of NRD guide leaky wave antennas.