NDLI: Extreme broadband waveguide diplexer design for high performance antenna feed systems

Content Provider	IEEE Xplore Digital Library
Author	Rosenberg, U. Bradt, A. Perelshtein, M. Bourbonnais, P.
Copyright Year	2010
Description	Author affiliation: Rosenberg, 27711 Osterholz-Scharmbeck, Germany (Rosenberg, U.) \|\| Alga Microwave Inc., Dollard des Ormeaux, H9B 2M9, Quebec, Canada (Perelshtein, M.; Bourbonnais, P.) \|\| Ericsson GmbH, 40547 Düsseldorf, Germany (Bradt, A.)
Abstract	A novel broadband waveguide diplexer design serving two frequency bands with up to 20% bandwidth out of an overall frequency band of more than 65% (3.5 to 7.15GHz) is established. Since the overall extreme frequency demands exceed the operating bands of standard rectangular waveguide types with sole fundamental mode propagation, three different waveguides are considered for the interfacing, namely a dual ridge type at the common port and different standard rectangular ones (WR229, WR137) at the ports serving the assigned frequency bands. A conductor loaded H-plane T-junction is used for the common branching facing at one port the common dual ridge waveguide interface of the diplexer. The other ports of the T-junction are directed to ridge waveguide filter types for the separation of the dedicated wide passbands with up to 20% bandwidth. The opposite ports of these filters are directly adapting to the assigned standard waveguide types for the dedicated served frequency band. It is shown that this approach satisfies high performance properties with a very compact implementation. The overall design has been supported with a full wave CAD method. The measured characteristics exhibit good coincidence with the computed ones and thus validate the broadband design approach. The high performance demands qualify this diplexer design for the implementation in modular feed systems for large radio antennas to provide multi access for serving several frequency bands simultaneously.
Starting Page	1249
Ending Page	1252
File Size	207599
Page Count	4
File Format	PDF
ISBN	9781424472321
e-ISBN	9782874870163
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-28
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	EUROPEAN MICROWAVE ASSOC
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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