采用三模阶跃阻抗存根谐振器和基片集成同轴线技术实现的紧凑型宽带带通滤波器

Proceedings of the 2018 VII International Conference on Network, Communication and Computing Pub Date : 2018-12-14 DOI:10.1145/3301326.3305157

Tingru Zhu, Z. Ren, Yan Zhang

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引用次数: 0

摘要

本文提出了一种采用阶跃阻抗存根谐振器和衬底集成同轴线技术的紧凑型宽带带通滤波器。该谐振器在通带边缘附近产生三个谐振频率和两个衰减极点，因此可以获得较宽的带宽和高频率选择性传输特性。采用多层印刷电路板(PCB)工艺，制作了尺寸为0.1 λ0×0.09 λ0的紧凑滤波器原型。测量结果表明，该滤波器的中心频率为12.98 GHz，分数带宽为28.1%，插入损耗为1.3 dB，宽阻带高达28.5 GHz，抑制优于25 dB。

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A Compact Wideband Bandpass Filter Implemented with Triple-mode Stepped Impedance Stubs Resonator and Substrate Integrated Coaxial Line Technology

In this paper, a compact wideband bandpass filter is proposed using a stepped impedance stubs resonator and substrate integrated coaxial line (SICL) technology. The resonator produces three resonant frequencies and two attenuation poles near the edges of the passband, so a wide bandwidth and a high frequency selectivity transmission characteristic can be obtained. Employing multilayer printed circuit board (PCB) process, a filter prototype with compact size of 0.1 λ0×0.09 λ0 is fabricated. The measured results indicate that the proposed filter has a central frequency of 12.98 GHz with 28.1% fractional bandwidth, an insertion loss of 1.3 dB, and a wide stopband up to 28.5 GHz with a rejection better than 25 dB.

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Proceedings of the 2018 VII International Conference on Network, Communication and Computing

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