一种基于并联T型枝节的宽阻带低通滤波器
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- 英文论文题名：A wide stop-band low pass filter based on T-shape parallel branch
- 论文作者：王仕章 ; 彭菊红 ; 王旭光 ; 杨维明
- 英文论文作者：WANG Shizhang ; PENG Juhong ; Wang Xuguang ; YANG Weiming ; School of Computer and Information Engineering ; Hubei University
- 年：2017
- 作者机构：湖北大学计算机与信息工程学院;
- 论文关键词：微带低通滤波器 ; 并联T型枝节 ; 宽阻带 ; 小型化
- 英文论文关键词：Micro-strip low pass filter ; T-shape parallel branch ; broad stop-band Miniaturization
- 会议召开时间：2017-05-08
- 会议录名称：2017年全国微波毫米波会议论文集（中册）
- 英文会议录名称：Proceedings of 2017 National Conference on Microwave and Millimeter Waves(NCMMW2017)
- 语种：中文
- 分类号：TN713.4
- 学会代码：ZDWB
- 会议名称：2017年全国微波毫米波会议
- 会议地点：中国浙江杭州
- 主办单位：中国电子学会
- 学会名称：中国电子学会微波分会
- 页数：3
- 文件大小：1165k
- 原文格式：D
- 会议级别：全国
摘要
针对高低阻抗线结构的平面低通滤波器的阻带不够宽、截止频率的2倍频或3倍频处出现寄生通带、尺寸较大的问题。本文采用高阻抗传输线单元加载并联T型枝节方法,构成带阻滤波支路,抑制了寄生通带。以7阶切比雪夫低通滤波器为例,实验结果表明,通带插损和回波损耗较小,过渡带陡峭,阻带达到了13GHz,能抑制3次谐波,滤波器体积减小了22%,实现了低通滤波器宽阻带和小型化。
In order to solve the problem that the stop-band of traditional high-low impedance micro-stripe low-pass filter is not wide enough, the additional parasitic pass band produced in 2 or 3 times frequency and the size of the filter is large. The way that a T-shape parallel branch was loaded at the side of the high-impedance transmission line unit was proposed in this paper. The T shaped branch constitutes a band-stop filter road and suppresses the parasitic pass-band. Using 7-step Chebyshev low pass filter as an example,the experimental results show that the pass-band insertion loss and the return loss are small, the excessive band is steep, and the stop-band reaches 13 GHz which reaches the parasitic pass band in harmonics frequency of 3 times, and the size of the filter is reduced by 22 percent. The requirement of broad-band and miniaturization is realized.
In order to solve the problem that the stop-band of traditional high-low impedance micro-stripe low-pass filter is not wide enough, the additional parasitic pass band produced in 2 or 3 times frequency and the size of the filter is large. The way that a T-shape parallel branch was loaded at the side of the high-impedance transmission line unit was proposed in this paper. The T shaped branch constitutes a band-stop filter road and suppresses the parasitic pass-band. Using 7-step Chebyshev low pass filter as an example,the experimental results show that the pass-band insertion loss and the return loss are small, the excessive band is steep, and the stop-band reaches 13 GHz which reaches the parasitic pass band in harmonics frequency of 3 times, and the size of the filter is reduced by 22 percent. The requirement of broad-band and miniaturization is realized.
引文
[1]杨茂辉,徐军,赵青等.一种新型小型化宽阻带低通滤波器设计[J].微波学报,2010,26(4):61-64
[2]朱轶智,张晓娟,方广有.基于开路T型结构的小型化超宽阻带滤波器设计[J].电子与信息学报,2010,32(9):2282-2286
[3]宁俊松,罗正祥.小型化超宽阻带低通滤波器的设计[J].电子科技大学学报,2010,39(2):223-226
[4]宁俊松,罗正祥,羊恺等.宽阻带平面低通滤波器的设计[J].电子学报,2008,36(2):342-345
[5]朱星宇,杨维明,彭菊红,王旭光.加载倒T型并联枝节的微带低通滤波器设计[J].电子元件与材料,2016,35(5):23-26
[6]Reinhold Ludwing,Pavel Bretchko著.射频电路设计――理论与应用[M]﹒电子工业出版社,2002
[2]朱轶智,张晓娟,方广有.基于开路T型结构的小型化超宽阻带滤波器设计[J].电子与信息学报,2010,32(9):2282-2286
[3]宁俊松,罗正祥.小型化超宽阻带低通滤波器的设计[J].电子科技大学学报,2010,39(2):223-226
[4]宁俊松,罗正祥,羊恺等.宽阻带平面低通滤波器的设计[J].电子学报,2008,36(2):342-345
[5]朱星宇,杨维明,彭菊红,王旭光.加载倒T型并联枝节的微带低通滤波器设计[J].电子元件与材料,2016,35(5):23-26
[6]Reinhold Ludwing,Pavel Bretchko著.射频电路设计――理论与应用[M]﹒电子工业出版社,2002