| 一种具有陡峭边带的宽带带通滤波器设计 |
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| 引用本文： | 熊,阳,张,伟,王荔田.一种具有陡峭边带的宽带带通滤波器设计[J].微波学报,2020,36(2):10-13. |
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| 作者姓名： | 熊 阳 张 伟 王荔田 |
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| 作者单位： | 1.中国西南电子技术研究所,成都610036; 2.中国电子科技集团公司重庆声光电有限公司,重庆400060;3.南开大学电子信息与光学工程学院,天津300350 |
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| 摘 要： | 基于一种新型的多模谐振器设计了一款宽带带通滤波器,该多模谐振器由鱼骨形谐振器及中心加载倒T形谐振器构成。滤波器的中心频率位于2.47 GHz,相对带宽为100%。滤波器具有极高的频率选择性,其边带滚降速度分别为232 dB/GHz和168 dB/GHz。此外,滤波器还具有较低插入损耗0.4 dB,紧凑的电路尺寸以及宽阻带抑制能力。
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| 关 键 词： | 多模谐振器 宽带滤波器 宽阻带抑制 高选择性 |
Design of Wideband Band-pass Filter with Sharp Roll-off Skirts |
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| XIONG Yang,ZHANG Wei,WANG Li-tian.Design of Wideband Band-pass Filter with Sharp Roll-off Skirts[J].Journal of Microwaves,2020,36(2):10-13. |
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| Authors: | XIONG Yang ZHANG Wei WANG Li-tian |
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| Affiliation: | 1. Southwest China Institute of Electronic Technology, Chengdu 610036, China;
2. Chongqing Acoustic-Optic-Electronic Company of CETC, Chongqing 400060, China;
3. College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China |
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| Abstract: | In this paper, a wideband bandpass filter is presented based on a novel multi-mode resonator. The proposed multi-mode resonator is composed of a fish bone resonator and an inverted T-shaped resonator. The center frequency of wideband bandpass filter is located at 2.47 GHz and the fractional bandwidth (FBW) of this filter is 100%. The filter is of super high selectivity with roll-off rates of 232dB/GHz and 168dB/GHz in lower sideband and higher sideband, respectively. Additionally, the filter possesses the merits of low insertion loss 0.4 dB, compact size and wide stopband suppression. |
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| Keywords: | multi-mode resonator wideband filter wide stopband suppression high selectivity |
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