一种宽带梳状线电调滤波器的设计  

A Design of Broadband Comb Line Electric Tunable Filter

作　　者：张薇薇[1] 杨怿菲[1] ZHANG Wei-wei;YANG Yi-fei(School of Electronic Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China)

机构地区：[1]西安邮电大学电子工程学院,西安710121

出　　处：《火力与指挥控制》2017年第4期146-148,153,共4页Fire Control & Command Control

基　　金：陕西省教育厅科研基金(14KJ1672);西安邮电大学中青年基金资助项目(ZL2014-14)

摘　　要：提出了一种宽带梳妆线电调滤波器的设计方法,采用四阶变容管加载终端短路式,滤波器输入端配有单级自偏中放电路,在带内起伏较小且在频率低端的损耗也较小。经过测试表明,该滤波器的工作频段为668.6 MHz^1 300 MHz,插损小于6 dB,3 dB带宽小于5%,矩形系数为5时,阻带抑制为45 dB。The design of electric tunable broadband comb line filter is introduced in the paper.Using four order varactor loaded terminal short circuit,filter input is equipped with single stage selfbias circuit.Within the zone,ups and downs is small.Loss is small in low frequency.Test shows its working frequency range of668.6MHz耀1300MHz,insertion loss of less than6dB,3dB bandwidth less than5%and resistance’s suppression ratio for45dB with rectangular factor of5.

关 键 词：电调滤波器 梳状线 变容管 

分 类 号：TN713[电子电信—电路与系统]