具有耦合阶跃阻抗谐振腔和开环缺陷接地结构的超宽带带通滤波器

2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2022-08-12 DOI:10.1109/ICMMT55580.2022.10023249

D. Cheng, C. Q. Zhang, Y. J. Li, C. G. Sun

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引用次数: 0

摘要

本文提出了一种基于耦合阶跃阻抗谐振器(SIR)和缺陷接地结构(DGS)的超宽带(UWB)带通滤波器。该滤波器由一对耦合SIRs和一个开环DGS组成。该滤波器呈现准椭圆函数响应，其中三个传输零点改善了滤波器的传输特性。仿真结果表明，$\mathbf{S}_{\boldsymbol{11}} \boldsymbol{< -10}\ \mathbf{dB}$定义的滤波器通频带范围为3.58 ~ 12.57 GHz，插入损耗小于1.58 dB。此外，在8.075 GHz中心频率处，滤波器尺寸仅为$\boldsymbol{0.22\lambda}\mathbf{g}\boldsymbol{\乘以0.38\lambda} \mathbf{g}$。

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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Ultra-Wideband Bandpass Filter With Coupled Step Impedance Resonator and Open-ring Defected Ground Structure

In this paper, a compact ultra-wideband (UWB) bandpass filter based on coupled step impedance resonator (SIR) and defected ground structure (DGS) is proposed. The filter consists of a pair of coupled SIRs and an open-ring DGS. The filter presents a quasi-elliptic function response in which three transmission zeros improve the transmission characteristics of the filter. The simulated results show that the filter passband defined by $\mathbf{S}_{\boldsymbol{11}} \boldsymbol{< -10}\ \mathbf{dB}$ is from 3.58 to 12.57 GHz, and the insertion loss is less than 1.58 dB. In addition, the filter size is only $\boldsymbol{0.22\lambda }\mathbf{g}\boldsymbol{\times 0.38\lambda} \mathbf{g}$ at the center frequency of 8.075 GHz.

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2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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