Title :
Full-wave analysis of coupling between combline resonators and its application to combline filters with canonical configurations
Author :
El Sabbagh, Mahmoud ; Zaki, Kawthar A. ; Yao, Hui-Wen ; Yu, Ming
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA
fDate :
12/1/2001 12:00:00 AM
Abstract :
Resonant frequencies and coupling coefficient between two combline cavities, in the presence of other cavities, are obtained accurately using the mode-matching technique. The effect of iris dimensions and position on the electric and magnetic coupling is rigorously investigated. The corresponding data for two isolated cavities are included for comparison. The adjacent and nonadjacent couplings are rigorously investigated for different configurations of three coupled cavities. A four-pole slot-coupled elliptic combline filter is designed
Keywords :
cavity resonator filters; cavity resonators; comb filters; electromagnetic coupling; elliptic filters; mode matching; canonical configuration; combline cavity; combline resonator; coupling coefficient; electromagnetic coupling; four-pole slot-coupled elliptic combline filter; full-wave analysis; iris; mode matching; resonant frequency; Coupling circuits; Iris; Magnetic analysis; Magnetic separation; Resonator filters; Scattering; Symmetric matrices; Transmission line matrix methods; Waveguide discontinuities; Waveguide junctions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
