NDLI: Advanced design and optimization of large scale microwave devices

Content Provider	IEEE Xplore Digital Library
Author	Ismail, M.A Wang, Y. Yu, M.
Copyright Year	2012
Description	Author affiliation: COM DEV Ltd, Cambridge, Ontario, N1R 7H6, Canada (Ismail, M.A; Yu, M.) \|\| University of Ontario Institute of Technology, Oshawa, L1H 7K4, Canada (Wang, Y.)
Abstract	This paper presents a summary of space mapping optimization application for the design of microwave devices used in satellite systems. Output multiplexers and switches are essential components of satellite systems. They are considered large scale microwave devices since they have a large number of parameters and they are very time consuming to simulate by electromagnetic simulators. Finite element EM based simulators and space-mapping optimization are combined to produce an accurate design for T-switches and manifold-coupled output multiplexers with dielectric resonator (DR) loaded filters. Finite element EM based simulators are used as a fine model of each multiplexer channel and a coupling matrix representation is used as a coarse model. Fine details such as tuning screws are included in the fine model. Space mapping optimization has been used to design large-scale output multiplexers and it has significantly reduced the overall tuning time compared to traditional techniques. A multiple space-mapping optimization algorithm has been developed for T-switch design. The T-switch has six paths and because of symmetry can be designed by considering only two paths. Applying space-mapping to each path does not produce feasible results since the two paths share some common design parameters. A multiple space-mapping algorithm iteratively enhances the coarse model of each path. The enhanced coarse models are then optimized to meet the required specifications. Excellent RF performance in the C-band and Ku-band has been obtained in few iterations.
Starting Page	1
Ending Page	3
File Size	540016
Page Count	3
File Format	PDF
ISBN	9781467310857
ISSN	0149645X
e-ISBN	9781467310888
e-ISBN	9781467310864
DOI	10.1109/MWSYM.2012.6259535
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-17
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiplexing Couplings Integrated circuit modeling Indexes Manifolds T-switches Space mapping optimization microwave devices output multiplexers
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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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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