摘要
本文给出了一款工作在VHF波段小型化高功率容量的低通滤波器。滤波器理论频率响应曲线采用准椭圆函数响应,由于有限传输零点的存在,使得该滤波器能在最少阶数时获得最好的抑制,同时插损也是最小。谐振器采用金属片加载电容的方式滤波,该方式成本低,容易加工实现,且功率容量大,实际测试表明,该滤波性能良好、功率容量超过1000W。
A novel low pass filter which works on VHF band, has small size and high power handling is proposed in this paper.This low pass filter's frequency response curve is quasi elliptic function.Because of the transmission zero point,this filter has sharpest rejection out of the band and has smallest insertion loss in the pass band.The resonators are made by metal sheet, so that this filter is very to be manufactured and has very high power handling.The test result shows that this filter has good performances and the power handling is higher than 1000 W.
出处
《微波学报》
CSCD
北大核心
2016年第S1期242-244,共3页
Journal of Microwaves
关键词
低通滤波器
小型化
高功率容量
准椭圆函数
low pass filter
small size
high power handling
quasi elliptic function
