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针对 NRD波导中不同半径的弯波导之间的耦合特性 ,提出了一种新的通用的分析方法 .当耦合结构分别简化为非对称结构 (即直波导与弯波导耦合 )和对称结构 (即两个半径相同的弯波导的耦合 )时 ,该方法也可相应简化 ,与已有的分析结果完全一致 .本文还就不同半径的弯波导构成的耦合器的频率响应和带宽特性 ,在 6 0 GHz时给出了实验验证 ,证实了本文所提方法的通用性和有效性
A new general analysis method is proposed for the coupling characteristics of curved waveguides with different radii in NRD waveguides. When the coupling structure is simplified to asymmetric structure (that is, the coupling between straight waveguide and curved waveguide) and the symmetrical structure This method can also be simplified correspondingly with the existing analysis results exactly.The same time, the frequency response and the bandwidth characteristics of the couplers with different radii of the curved waveguides are not obvious at 6 0 GHz The experimental verification is given, which confirms the universality and effectiveness of the proposed method