Longitudinal dual-mode filters in rectangular waveguide

Dual-Mode filters are used in applications where low mass and volume are required. In this paper, the Computer Aided Design of a new rectangular waveguide filter structure is proposed for achieving the dual-mode operation. It preserves the longitudinal inline topology used in the classical circular...

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Bibliographic Details
Main Authors: Ruiz-Cruz, Jorge A., Yunchi Zhang, Montejo-Garai, Jose R., Rebollar, Jesus M., Zaki, Kawthar A.
Format: Conference Proceeding
Language:English
Subjects:
Band pass filters
Cavity resonators
Couplings
Dual-Mode cavities
elliptic filter response
Filtering theory
Microwave filters
Rectangular waveguide filter
Rectangular waveguides
Resonator filters
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Summary:Dual-Mode filters are used in applications where low mass and volume are required. In this paper, the Computer Aided Design of a new rectangular waveguide filter structure is proposed for achieving the dual-mode operation. It preserves the longitudinal inline topology used in the classical circular waveguide configuration, which can provide quasi-elliptic function responses. However, it has no coupling or tuning screws and it is exclusively made up of sections of aligned rectangular waveguides. This leads to a very efficient full-wave analysis based on the Mode-Matching method. The proposed CAD is illustrated with a four order prototype, whose results are compared with other numerical technique.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2008.4632911