紧凑的双频窄带带通滤波器，频率比小

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Frequenz Pub Date : 2023-04-06 DOI:10.1515/freq-2022-0272

Shangjing Xi, Jianying Guo, Yannan Jiang, K. Xu

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引用次数: 1

摘要

本文设计了一种基于五对耦合线的紧凑但非常简单的双频带通滤波器。由于其对称结构，可以使用偶模和奇模方法对其进行检测。使用输入阻抗分析可以获得并计算六个传输零点（TZ）。为了进行演示，制作并测量了中心频率分别为0.94和1.12 GHz的双频带窄带BPF示例。两个通带的3dB分数带宽分别为2%（0.93–0.95 GHz）和3.4%（1.1–1.14 GHz），其上下频带的频率比非常小。测量结果与仿真结果一致，验证了设计过程。

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 dual-band narrowband bandpass filter with small frequency ratio

Abstract A compact but very simple dual-band bandpass filter (BPF) based on just five pairs of coupled lines is designed in this paper. It can be examined using the even- and odd-mode method because of its symmetry structure. Six transmissions zeros (TZs) can be obtained and calculated by using input impedance analysis. For demonstration, a dual-band narrowband BPF example with center frequencies at 0.94 and 1.12 GHz is fabricated and measured. The 3-dB fractional bandwidths of two passbands are 2% (0.93–0.95 GHz) and 3.4% (1.1–1.14 GHz), whose frequency ratio of upper-band to lower-band is very small. The measurement results agree with the simulation results, confirming the design process.

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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.