基于发夹环谐振器的高阶宽带宽阻带带通滤波器设计

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-15 DOI:10.1016/j.aeue.2025.155728

Yiwei Jiao , Haiwen Liu , Hongliang Tian , Ruolin Wang , Fei Yang

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引用次数: 0

摘要

针对c波段卫星通信，提出了一种结构紧凑的宽阻带高阶宽带带通滤波器。首先，对具有两种独立可调谐振模式的发夹环谐振器进行了分析。然后研究了宽带滤波器设计中馈线转换为谐振腔产生额外传输极点的机理。然后，通过级联hrr并利用其双模，设计了一系列具有两个、三个和四个hrr的宽带BPF，以说明使用多模谐振器和馈线的宽带BPF设计过程，由于级联更多的hrr，从而提高了通带的选择性。最后，通过引入t形短节和梯状短节来产生额外的传输零，从而扩大了上阻带的范围。基于该设计方法制作了一个10阶宽带BPF，其通频带范围为3.28 GHz ~ 5.8 GHz，分数带宽约为55.5%。上阻带范围为6.22 GHz ~ 19.3 GHz (4.2 f0)，抑制小于−28.9 dB。仿真结果与实测结果吻合较好。

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Design of High Order Wideband Bandpass Filter with Wide Stopband Based on Hairpin Ring Resonator

In this paper, a compact high order wideband bandpass filter (BPF) with wide stopband is proposed, which is aiming at C-band satellite communications. Firstly, the hairpin ring resonator (HRR) with two independently tunable resonant modes is analyzed. Then mechanism of how feed lines are transformed as resonators to generate extra transmission poles in wideband filter design is investigated. After that, by cascading HRRs and utilizing its dual mode, a series of wideband BPF with two, three and four HRRs are designed to illustrate the wideband BPF design procedures of using multi-mode resonators and feed lines, which the selectivity of the passband is improved because of cascading more HRRs. Finally, T-shaped stubs and ladder-like stubs are introduced to generate additional transmission zeros, which expand the range of upper stopband. A 10-order wideband BPF is fabricated based on the proposed design method, which the passband is from 3.28 GHz to 5.8 GHz and fraction bandwidth is about 55.5 %. The upper stopband is from 6.22 GHz to 19.3 GHz (4.2 f₀) and rejection is below −28.9 dB. There is a good agreement between the simulation and measurement.

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.