一种新型带阻滤波器设计，具有三重电路，用于通带扩展

2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS) Pub Date : 2017-12-01 DOI:10.1109/EDAPS.2017.8276990

W. Xu, Kaixue Ma, Shouxian Mou

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引用次数: 0

摘要

本文提出了一种带阻滤波器(BSF)，该带阻滤波器具有由径向短段(TRS)和逆变相线(PIL)组成的三路电路。利用所提出的等效电路模型，从理论上研究了滤波器拓扑的带宽扩展。为了验证设计理念，设计并实现了中心频率fc为1.6 GHz的BSF原型。实测结果表明，该滤波器的分数带宽为94.3%。此外，它还展示了高达19.24 GHz (12fc)的超宽通带，包括I/O连接器在内的插入损耗为1.69 dB，以及零集总元件应用的0.3λg × 0.3λg的紧凑尺寸(λg是中心频率处的波导波长)。

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A new band-stop filter design with triple electric paths for passband extension

In this paper, a band-stop filter (BSF) is presented with triple electric paths formed by the transformed radial stub (TRS) and phase inverter line (PIL). The filter topology is theoretically investigated for bandwidth extension with proposed equivalent circuit model. To validate the design concept, a BSF prototype with central frequency fc of 1.6 GHz is designed and implemented. The measured results show that the filter features a fractional bandwidth of 94.3%. Also it demonstrates ultra-wide passband up to 19.24 GHz (12fc), insertion loss of 1.69 dB including the I/O connectors, and a compact size of 0.3λg × 0.3λg (λg is the guide wavelength at central frequency) with zero lumped elements applied.

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2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS)

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