DocumentCode :
1391823
Title :
High-performance transitions for overmoded operation of elliptical waveguides
Author :
Rosenberg, Uwe ; Schneider, Martin
Author_Institution :
Marconi Commun. GmbH, Hildesheim, Germany
Volume :
48
Issue :
10
fYear :
2000
fDate :
10/1/2000 12:00:00 AM
Firstpage :
1749
Lastpage :
1755
Abstract :
Overmoded elliptical waveguide systems are shown to provide considerable lower insertion loss compared with standard types using the frequency band with exclusive TEc11 fundamental mode propagation. The considerations for the overmoded waveguide operation are outlined. A novel transition design based on transformer steps with curved cross sections and containing means for higher order mode control is established for interfacing the oversized elliptical cross section with the standard rectangular waveguide ports. The accurate determination of the transition structure maintaining high performance demands is obtained by a suitable computer-aided-design procedure. The overmoded waveguide approach, including the transition design, is proven by computed and experimental results for a millimeter-wave design
Keywords :
electronic design automation; losses; rectangular waveguides; waveguide transitions; computer-aided-design procedure; curved cross sections; elliptical waveguides; high-performance transitions; higher order mode control; insertion loss; millimeter-wave design; overmoded operation; standard rectangular waveguide ports; transformer steps; Attenuation; Filters; Frequency; High performance computing; Insertion loss; Propagation losses; Rectangular waveguides; Waveguide components; Waveguide theory; Waveguide transitions;
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/22.873905
Filename :
873905
Link To Document :
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