新颖的宽阻带低通滤波器设计

一种新颖的宽阻带低通滤波器设计

内容简介：本文设计了一种新颖紧凑的微带低通滤波器，它具有低损耗、宽阻带与高阻带衰减以及陡裙特性。该低通滤波器基于级联平行耦合短截线的扇形结构（RLCL），其结构简单，且在截止频率处产生一个传输零点，并可通过调节电路参数实现零点位置可控，改善滤波器陡裙特性，为更进一步说明此结构特点给出了其等效电路。

Abstract：This paper proposes a new compact micro-strip low-pass filter with broad stopband and sharp skirt characteristics. The simple structure composed of a pair of parallel coupled line and a radio stub (RLCL), generates a finite attenuation pole near the stopband cutoff frequency, and can control the pole by adjusting the circuit param-eters. In order to extract the dimensions of the proposed low-pass filter, we develop an equivalent-circuit model.

作者：康文臣, 姜杨,

关键词：低通滤波器, 级联平行耦合短截线的扇形结构RLCL, 宽阻带, 等效电路, 陡裙特性