紧凑的三带带通滤波器设计采用桩负载阶跃阻抗谐振器

2017 7th IEEE International Conference on Electronics Information and Emergency Communication (ICEIEC) Pub Date : 2017-07-21 DOI:10.1109/ICEIEC.2017.8076508

Hongshu Lu, T. Xie, N. Yuan, Qian Li

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引用次数: 2

摘要

本文提出了一种利用存根负载阶跃阻抗谐振器设计的紧凑型三带带通滤波器(BPF)。首先采用偶/奇模分析方法研究了SIR的特性。为了减小整体尺寸，采用了阶跃阻抗曲流环路谐振器来设计三波段BPF。通过优化结构参数，设计并仿真了一个工作在2.45/ 3.5/ 5 GHz的三波段BPF。通过调整扰动大小，在第一通带内激发两个简并模并耦合。此外，在三个通带的两侧还设置了五个传输零点，进一步提高了BPF的性能。仿真结果表明，该滤波器具有较好的频响特性。

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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Compact tri-band bandpass filter designed using stub-loaded stepped-impedance resonator

A compact tri-band bandpass filter (BPF) designed using the stub-loaded stepped-impedance resonator (SL-SIR) is presented in this paper. The characteristics of the SIR are firstly studied by using the even-/ odd-mode analysis method. In order to reduce the overall size, a stepped-impedance meander loop resonator is used to design the tri-band BPF. By optimizing the structural parameters, a tri-band BPF operating at 2.45/ 3.5/ 5 GHz is designed and simulated. By adjusting the perturbation size, two degenerate modes are excited and coupling within the first passband. What's more, five transmission zeros which can further improve the performance of the BPF locate on both sides of the three passbands. Simulated results show that the proposed BPF possesses finer frequency response characteristics.

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2017 7th IEEE International Conference on Electronics Information and Emergency Communication (ICEIEC)

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