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针对一般E面波导滤波器结构存在阻带特性较差的缺点，本文对E面双条带结构进行了全面的分析。这种结构具有阻带特性好的优点。文中给出了简明的矩阵公式，并进一步提出了改善E面结构带外特性的可行方法。利用所得公式，分析和设计了Ka波段E面双条带波导滤波器，实验数据和理论分析吻合较好。
For the general E-plane waveguide filter structure has the disadvantage of poor stopband characteristics, this paper analyzes the E-plane double strap structure comprehensively. This structure has the advantages of stop band characteristics. In this paper, a concise matrix formula is given, and a feasible method to improve the out-of-band characteristics of E-plane structure is proposed. Using the obtained formulas, the analysis and design of the Ka-band E-plane double-strip waveguide filter are carried out. The experimental data agree well with the theoretical analysis.