小型3dB ka波段定向耦合器设计

The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI:10.1109/MMWCST.2012.6238197

Song Wen, Qingyuan Wang, Tao Wu, Yicheng Tan

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引用次数: 9

摘要

基于贝特孔耦合理论，结合耦合波的衰减系数和场平均校正系数，设计了宽带定向耦合器。本文设计了一种ka波段3dB定向耦合器。首先，根据要求的规范，基于修正的贝特孔径耦合理论，初步设计了等间距波导定向耦合器的相关参数。然后，利用电磁仿真软件CST对两个耦合孔之间的距离和孔的直径进行了仿真和优化，得到了所需规格的定向耦合器。最后通过折叠耦合波导，使定向耦合器的长度减少了30%，实现了小型化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design of a compact 3dB Ka-band directional coupler

Based on the theory of Bethe hole coupling, a broadband directional coupler is designed by combining the attenuation factor of coupled waves and the field averaging correction factor. A 3dB directional coupler at Ka-band is designed in this paper. First, according to the required specification, the relevant parameters of equally spaced waveguide directional coupler are preliminarily designed based on the modified Bethe aperture coupling theory. Then in order to get the required specification directional coupler, the distance between two coupling holes and the diameter of the holes are simulated and optimized using the electromagnetic simulation software CST. Finally by folding the coupling waveguide, the length of the directional coupler is reduced by 30% to achieve miniaturization.

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The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology

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