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应用矢量位函数、反应的概念和互易原理,推导出圆波导中双探针的互阻抗表达式,圆波导是半无限长的,终端接有一定反射系数的负载.发现了探针的互电阻是由主模产生的,而互电抗则是由主模和高次模共同引起的;由于高次模随着探针之间距离的增加急剧衰减,所以对互电抗的主要贡献来自于主模.然而当探针之间的距离趋近于零时,高次模起主导作用,产生很大值的互电抗.互阻抗取决于探针的位置、高度和相互之间的距离,以及终端面的位置.
By using vector bit functions, the concept of reaction and the principle of reciprocity, we derive the transimpedance expression of double probe in circular waveguide. The circular waveguide is semi-infinite and the terminal is loaded with certain reflection coefficient. The resistance is generated by the main mode, while the mutual reactance is caused by both the main mode and the high mode; the main contribution to the mutual reactance is due to the high mode mode abruptly decaying with increasing distance between the probes However, when the distance between the probes approaches zero, the higher mode plays a dominant role, producing a large mutual inductance. The transimpedance depends on the probe’s position, height and distance from one another, and the terminal The location of the face.