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The field distributions and propagation constants of the circular electric, circular magnetic and hybrid modes of oversized waveguides are expressed, taking the effects of walls into account. These effects are described by wall functions which depend on surface impedances of the wall, and are determined for different types of guides. The near and far field patterns are derived in the case of real wall functions. It is shown that, for very oversized waveguides, the terms containing wall functions can be ignored in the calculations, and it results that the expressions of fields and propagation constants become independent of the types of waveguides.
An application to corrugated waveguides for electron cyclotron resonance heating experiments shows the variations of the radiation characteristics versus geometric parameters of the corrugations and determines the range of interest for these parameters.

Additional information

Authors: CRENN J P, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);CHAROLLAIS C, INSA de Rouen, Mont Saint Aignan (FR)
Bibliographic Reference: Report: EUR-CEA-FC-1576 EN (1996) 41pp.
Availability: Available from Association Euratom-CEA, CEN Cadarache, 13108 Saint-Paul-lez-Durance (FR)
Record Number: 199610881 / Last updated on: 1996-09-16
Original language: en
Available languages: en