Electric heating – Metal heating – Of cylinders
Patent
1978-03-06
1980-07-01
Reynolds, B. A.
Electric heating
Metal heating
Of cylinders
333248, 343772, H05B 906
Patent
active
042107938
ABSTRACT:
The invention relates to a microwave applicator intended to radiate a uniform power intensity to an elongated zone of which the frequency is in a predetermined range situated around a central frequency F. This applicator includes a wave guide 1 provided with a plurality of resonant slots 4 of which the centers are separated by a distance of an even number of half wave lengths .lambda.g/2, if .lambda.g is the length of guided wave corresponding to the central frequency F. The shunt slots are aligned on a longitudinal axis situated in an axial plane of the guide and are each associated with an inside post arranged in the guide on the transverse axis of said slot, so that the various slots radiate with essentially uniform amplitude. The wave guide is provided with outside posts of adjustable height penetrating into each inside post through the guide and flanges rising above the guide at the periphery of the face provided with shunt slots.
REFERENCES:
patent: 3263052 (1966-07-01), Jeppson et al.
patent: 3321314 (1967-05-01), Jeppson
patent: 3457385 (1969-07-01), Cumming
patent: 3704523 (1972-12-01), Guerga et al.
patent: 3705283 (1972-12-01), Sayer, Jr.
Agence Nationale de Valorisation de la Recherche (ANVAR)
Reynolds B. A.
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