一种新型交叉耦合方形谐振器微型微波微带滤波器

2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components Pub Date : 2008-12-01 DOI:10.1109/IMWS.2008.4782295

Ji-gang Cao, H. Hu

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引用次数: 2

摘要

提出了一种基于沟槽谐振腔的交叉耦合带通滤波器。由于采用了相同的新耦合系数配置，两个回路之间的距离明显缩短，这为BPF提供了小型化的优势。通过在传递函数中引入两个传输零点，该结构的特点是具有更高的Q因子。通过电磁软件CST的分析，得到该配置耦合系数的结构参数，本实验设计了K波段和X波段使用的带通滤波器，尺寸分别为2.3 × 2.4 mm2和5.9 × 5.9 mm2。x波段带通滤波器的插入损耗(IL)为3.2 dB，出带的IL为25 dB。实验结果与仿真波吻合较好。

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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A Novel Miniaturized Microwave Microstrip Filter Used Cross-Coupled Square Resonators

A novel cross-coupled band-pass filter(BPF)based on the flute resonator is proposed in this paper. Due to the adoption of the same new configuration of coupling coefficient, the distance between the two loops is clearly shortened, which offers BPF an advantage of miniaturization. The configuration is characterized by a higher Q factor by introducing two transmission zeros in the transfer-function. Through the analysis of electromagnetic software CST to achieve the structural parameter of the coupling coefficient of this configuration, the band-pass filter used in K waveband and X waveband are designed in this experiment with dimension of 2.3times2.4 mm2 and 5.9times5.9 mm2 respectively. The X-band bandpass filter's insertion loss (IL) of 3.2 dB, and the IL of the out-passband of 25 dB. The result of the experiment agrees well with emulate wave.

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2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components

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