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Computer-aided design of microstrip extracted-pole lossy filter

机译:微带抽出极点损耗滤波器的计算机辅助设计

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摘要

In this article, computer-aided design of a new type of microstrip lossy filter isrndescribed. The new type of lossy filter is realized by introducing resistive cross couplingsrninto a microstrip extracted-pole filter to achieve a flat passband. The highrnselectivity is achieved by introducing 2 transmission zeros using 2 extracted poles,rnwhich can be adjusted. An equivalent circuit model is established and its circuitrnparameters, which are useful for physical implementation of the filter, are determinedrnin light of computer modeling. For demonstration, two 6-pole filters centered atrn2 GHz with fractional bandwidth (FBW) 6% and 20% are implemented. Experimentalrnresults, together with a theoretical comparison between different FBWs, and fullwavernelectromagnetic simulation results are also presented.
机译:本文描述了一种新型微带损耗滤波器的计算机辅助设计。通过将电阻性交叉耦合引入微带抽出极点滤波器中以实现平坦的通带,可以实现新型的有损滤波器。高选择性是通过使用2个可调整的提取极点引入2个传输零点来实现的。建立等效电路模型,并根据计算机建模确定对滤波器的物理实现有用的电路参数。为了演示,实现了两个中心频率为2 GHz的6极点滤波器,分别具有6%和20%的分数带宽(FBW)。还给出了实验结果,以及不同FBW之间的理论比较,以及全波电磁仿真结果。

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