Evaluation of the TE12 mode in circular waveguide for low-loss, high-power rf transmission

The use of TE12 in circular waveguide with smooth walls was suggested for low-loss transport of rf signals in multimoded systems [S. G. Tantawi et al., in Advanced Accelerator Concepts: Eighth Workshop, edited by Wes Lawson, AIP Conf. Proc. No. 472 (AIP, New York, 1999), pp. 967–974]. Such systems u...

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Bibliographic Details
Published in:Physical review. Accelerators and beams 2000-08, Vol.3 (8)
Main Authors: Tantawi, Sami G, Nantista, C D, Bowden, G B, Fant, K S, Kroll, N M, Vlieks, A E
Format: Article
Language:English
Subjects:
Circular waveguides
Flanges
Superhigh frequencies
Online Access:Get full text
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Summary:The use of TE12 in circular waveguide with smooth walls was suggested for low-loss transport of rf signals in multimoded systems [S. G. Tantawi et al., in Advanced Accelerator Concepts: Eighth Workshop, edited by Wes Lawson, AIP Conf. Proc. No. 472 (AIP, New York, 1999), pp. 967–974]. Such systems use the same waveguide to transport different signals over different modes. In this report we detail a series of experiments designed to measure the characteristics of this mode. We also describe the different techniques used to generate it and receive it. The experiments were done at X band around a frequency of 11.424 GHz, the frequency of choice for future linear colliders at X band [The NLC Design Group, Report No. LBNL-PUB-5424, SLAC Report No. 474, Report No. UCRL-ID 124161, 1996; The JLC Design Group, KEK-REPORT-97-1, 1997]. The transportation medium is 55 m of highly overmoded circular waveguide. The design of the joining flanges is also presented.
ISSN:2469-9888
DOI:10.1103/PhysRevSTAB.3.082001