具有可控传输零点的高选择性陶瓷带通滤波器

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Frequenz Pub Date : 2024-03-28 DOI:10.1515/freq-2023-0198

Yingxuan Fang, Mengxia Yu, Xiaochuan Zhang, Rou Zhang, Jing Ma

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引用次数: 0

摘要

本文提出了一种基于 λ/4 阶跃阻抗谐振器的具有可控传输零点的微带滤波器。该滤波器利用电-磁混合耦合来产生传输零点，从而提高了选择性和阻带性能。在陶瓷基板上设计和制造的五阶滤波器，中心频率为 26 GHz，带宽为 2 GHz，信号抑制电平在 10 至 22.8 GHz 之间优于 42.51 dB，在 29.1 至 40 GHz 之间优于 48.23 dB。此外，该滤波器体积小巧，仅为 2.074 × 1.071 毫米（0.566λ g × 0.292λ g）。

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A high-selectivity ceramic bandpass filter with controllable transmission zeros

This paper proposes a microstrip filter with controllable transmission zeros based on the λ/4 stepped impedance resonator. This filter utilizes hybrid electric-magnetic coupling to generate transmission zeros, which can improve selectivity and stop-band performance. A fifth-order filter is designed and manufactured on a ceramic substrate with a center frequency of 26 GHz, bandwidth of 2 GHz and the signal suppression level is better than 42.51 dB from 10 to 22.8 GHz and 48.23 dB from 29.1 to 40 GHz. Furthermore, the proposed filter has a compact size of 2.074 × 1.071 mm (0.566λ g × 0.292λ g ).

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来源期刊

Frequenz 工程技术-工程：电子与电气

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

3 months

期刊介绍： Frequenz is one of the leading scientific and technological journals covering all aspects of RF-, Microwave-, and THz-Engineering. It is a peer-reviewed, bi-monthly published journal. Frequenz was first published in 1947 with a circulation of 7000 copies, focusing on telecommunications. Today, the major objective of Frequenz is to highlight current research activities and development efforts in RF-, Microwave-, and THz-Engineering throughout a wide frequency spectrum ranging from radio via microwave up to THz frequencies. RF-, Microwave-, and THz-Engineering is a very active area of Research & Development as well as of Applications in a wide variety of fields. It has been the key to enabling technologies responsible for phenomenal growth of satellite broadcasting, wireless communications, satellite and terrestrial mobile communications and navigation, high-speed THz communication systems. It will open up new technologies in communications, radar, remote sensing and imaging, in identification and localization as well as in sensors, e.g. for wireless industrial process and environmental monitoring as well as for biomedical sensing.