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Transmission zero generation for wideband high frequency evanescent mode filters

机译：宽带高频e逝模式滤波器的传输零生成

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摘要

A new technique to generate transmission zeros in wideband high frequency evanescent mode filters is presented in this paper. The proposed technique is based on the inverted strongly coupled resonator pair (ISCRP), which is used to provide both a resonant node and a by-pass coupling. Large sequential coupling coefficients are obtained by inverting one or both resonators of the pair. Moreover, in order to realize a sufficiently strong intra-coupling, the two resonators are embedded within a section of dielectric-loaded waveguide or alternatively connected one to each other. The ISCRP allows for the realization of a sharp transmission zero that can be located extremely close to the passband edges of a wideband filter. The experimental results of a Ku-band filter with passband ranging from 11.60 to 19.40 GHz and having a transmission zero located 120 MHz away from the lower edge of the passband validate the proposed technique.
机译：本文提出了一种在宽带高频van逝模式滤波器中生成传输零点的新技术。所提出的技术基于反向强耦合谐振器对（ISCRP），它用于提供谐振节点和旁路耦合。通过将一对谐振器中的一个或两个谐振器反相，可获得较大的顺序耦合系数。此外，为了实现足够强的内部耦合，两个谐振器被嵌入在介质加载的波导的一部分内或可替代地彼此连接。 ISCRP允许实现尖锐的传输零点，该零点可以非常靠近宽带滤波器的通带边缘放置。 Ku带滤波器的通带范围为11.60至19.40 GHz，传输零点位于距通带下边缘120 MHz处的实验结果验证了所提出的技术。

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