X波段波导端头裂缝的互耦分析

Mutual Coupling Analysis of Slots in the End Wall of X Band Waveguide

用矩量法(MOM)导出求解X波段波导端头裂缝单元间互耦等效磁流的模型。在此基础上给出了等效磁流在激励和未激励单元内部产生的场、反射系数、驻波系数和两单元间耦合系数等的计算公式。分别在共E、H面条件下分析了两X波段波导端头裂缝互耦的影响,并对单元间不同相对距离和工作频率时的互耦影响规律进行了讨论。研究结果表明,该算法简单,计算值与测试结果吻合较好。

The model of the equivalent magnetic current for mutual coupling between slots in the end wall of waveguide was derived by moment of method in this paper. The field intensity caused by the equivalent magnetic current in excited unit and unexcited unit was presented, and so were the reflection coefficient, standing-wave coefficient and coupling coefficient between two units. The effectiveness of mutual coupling for some two X band slots in the end wall of waveguide under the conditions of listing on the same E plane or H plane were analyzed. The mutual coupling for various relative distance and operation frequency was discussed. The study results showed that this method was simple, which computation result was similar with the measurement.