Title :
Combined Circuit-/Field-Theory CAD Procedure for Manifold Multiplexers with Circular Cavities
Author :
Sieverding, Th. ; Arndt, F.
Author_Institution :
Microwave Department, University of Bremen, P.O. Box 330 440, Kufsteiner Str., NW1, D-28359, Bremen, Germany
Abstract :
A fast and accurate lybrid circuit-/field-theory design method for rectangular waveguide manifold multiplexers with circular cavity filters is described. The method is based on rigorous full-wave mode-matching key-building blocks and combines the efficiency of circuit theory CAD tools with the accuracy of electromagnetic simulators. The effectiveness of the hybrid CAD method is demonstrated at the design of high-return-loss H- or E-plane triplexers with seven-resonator circular waveguide filters, and at a new mixed triplexer structure using a combination of H- and E-plane T-junctions. The theory is verified by measurements.
Keywords :
Circuits; Design automation; Electromagnetic waveguides; Filtering theory; Filters; Iris; Multiplexing; Rectangular waveguides; Waveguide discontinuities; Waveguide junctions;
Conference_Titel :
Microwave Conference, 1994. 24th European
Conference_Location :
Cannes, France
DOI :
10.1109/EUMA.1994.337248
