Title :
Effect of external circuit susceptance upon dual-mode coupling of a bandpass filter
Author :
Kundu, Arun Chandra ; Awai, Ikuo
Author_Institution :
RF Filter Group, TDK Corp., Ichikawa, Japan
fDate :
11/1/2000 12:00:00 AM
Abstract :
The effect of external circuit susceptances in the coupling between the dual-modes of a microstrip ring resonator bandpass filter in addition to the main stub perturbation susceptances is described. New theoretical expressions are devised to calculate this coupling and they are experimentally verified
Keywords :
UHF filters; band-pass filters; equivalent circuits; linear network analysis; microstrip filters; microstrip resonators; microwave filters; passive filters; resonator filters; transmission line theory; dual-mode coupling; external circuit susceptance; main stub perturbation susceptances; microstrip bandpass filter; microstrip ring resonator filter; Admittance; Band pass filters; Bandwidth; Coupling circuits; Distributed parameter circuits; Microstrip filters; Microstrip resonators; Optical ring resonators; RLC circuits; Resonant frequency;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
