Title :
Evanescent Mode Filters with Dielectric Resonators
Author :
Nuechter, P. ; Bochtler, U. ; Landstorfer, F.
Author_Institution :
University of Ulm, Electrical Engineering Department, Microwave Techniques, PO Box 4066, D-7900 Ulm, Germany
Abstract :
An inverter representation for evanescent mode waveguide sections is derived. In combination with dielectric loaded waveguide sections above cutoff usual filter design formulas can be applied. The design considers resonator detuning by incorporating negative line segments in the inverter. External coupling of waveguide and coaxial line is achieved by means of monopoles exciting TM-Modes.
Keywords :
Admittance; Coaxial components; Dielectric substrates; Erbium; Inverters; Loaded waveguides; Microwave filters; Resonator filters; Transmission line matrix methods; Waveguide transitions;
Conference_Titel :
Microwave Conference, 1991. 21st European
Conference_Location :
Stuttgart, Germany
DOI :
10.1109/EUMA.1991.336485
