紧凑型多层宽带带通滤波器与多个传输零点

2017 International Conference on Network and Information Systems for Computers (ICNISC) Pub Date : 2017-04-01 DOI:10.1109/ICNISC.2017.00011

Decheng Gan, S. He, Zhijiang Dai, Tian Qi, Decheng Gan

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引用次数: 0

摘要

提出了一种基于低温共烧陶瓷(LTCC)技术的小型多层宽带带通滤波器(BPF)。该滤波器由一个t型短存根和一对平行传输线组成。由于多径效应，可以在通带附近实现多个传输零点，提高了选择性。设计、制作并测量了一个3.59 GHz ~ 8.21 GHz的宽带滤波器。测量结果表明，中心频率为6 GHz，分数带宽(FBW)为74.8%。在通频带附近引入三个传输零点，分别位于2.1 GHz、36.25 dB、9.25 GHz、27.02 dB和10.56 GHz、28.58 dB。

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Compact Multi-Layered Wideband Bandpass Filter with Multiple Transmission Zeros

A miniaturized multi-layered wideband bandpass filter (BPF) based on the low-temperature-cofired ceramic (LTCC) technology is proposed in this paper. The proposed filter consists of a T-shaped short stub and a pair parallel transmission lines. Owing to the multi-path effect, multiple transmission zeros can be realized near the passband for enhanced selectivity. A wide-band filter from 3.59 GHz to 8.21 GHz is designed, fabricated and measured. The measured results show that the center frequency is 6 GHz with a fractional bandwidth (FBW) of 74.8%. Three transmission zeros were introduced near the passband, located at 2.1 GHz with 36.25 dB rejection, 9.25 GHz with 27.02 dB rejection, 10.56 GHz with 28.58 dB rejection.

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来源期刊

2017 International Conference on Network and Information Systems for Computers (ICNISC)

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