任意截面波导中截止波长测试的一种新方法  

A NOVEL METHOD FOR MEASURING THE CUT OFF WAVELENGTH OF WAVEGUIDES WITH ARBITRARY CROSS SECTIONS

作　　者：周海京[1] 丁武[1] 林为干[2] 周传明[3] 

机构地区：[1]北京应用物理与计算数学研究所计算物理实验室,北京100088 [2]电子科技大学,成都610054 [3]中国工程物理研究院,成都501信箱610003

出　　处：《强激光与粒子束》1999年第4期487-490,共4页High Power Laser and Particle Beams

基　　金：国家863 激光技术领域资助课题;国家自然科学基金;东南大学毫米波技术国家重点实验室资助课题

摘　　要：提出了一种测试任意复杂截面波导截止波长的新方法。该方法利用波导及谐振腔的有关理论，把任意复杂截面波导的截止频率测试问题转化为对波导谐振腔的测试，因而不但在测试中回避了匹配和过渡等难题，而且达到较高精度，非常适合于微波工程设计使用。还提出了对波导衰减以及模式场分布的测试方法。A novel method for measuring the cut off wavelength of waveguides with arbitrary complex cross sections is proposed in this paper. Based on the theory of waveguide resonant cavity, the measurement of complex waveguides is simplified into that of resonant cavities. Consequently, the difficulties of matching and transition are excluded, and high accuracy is also obtained. This measurement method is regarded as a better choice in microwave engineering design. The measurement methods for waveguide attenuation and field distribution are also included.

关 键 词：微波测量 波导 截止波长 任意截面 

分 类 号：TN814.06[电子电信—信息与通信工程]