Abstract:
La présente invention concerne un générateur d'ondes hyperfréquences (10), comprenant un tube de génération d'ondes hyperfréquences s'étendant selon un axe longitudinal (L), comprenant : - une cathode (18) s'étendant selon l'axe (L), - une anode (26) s'étendant selon l'axe (L) et entourant radialement la cathode (18), - une cavité (28) délimitée par la cathode (18) et l'anode (26), et - une source de tension pour établir une différence de potentiel entre la cathode (18) et l'anode (26), la cathode (18) étant adaptée pour émettre des électrons à l'intérieur de la cavité (28) lorsque le tube est alimenté en énergie électrique, le générateur (10) étant caractérisé en ce que la section de la cavité (28) transversalement à l'axe (L) varie suivant l'axe (L).
Abstract:
For an anode assembly 51 of a magnetron, a plurality of plate shaped vanes 54 radially arranged at an inner circumference of the roughly round shaped anode assembly 53 has a end portion arranged at a central axis of the anode assembly 53 with a step shape Df having a reduced thickness in a range of predetermined length L from an end portion, so that increase of the facing area of the respective adjacent plate shaped vanes 54 is suppressed while the separation distance of the end portions of the vanes is secured.
Abstract:
A magnetron device in which the wire's diameter of coils for the core type inductor and the air-core type inductor is 1.0 to 1.4 mm, and the cross sectional area of the magnetic core is 5 to 16 mm 2 , the number of turns of the coil for the air-core type inductor being 55 2 π D + A / 2 T ≤ 90 , for the choke coil (35) accommodated in the filter box (31) disposed so as to cover the cathode terminal (33) of the magnetron tube body (10), which is comprised of the core type inductor (36) having the magnetic core (36a) and the air-core type inductor (37), and both thereof being serially connected together, where A (mm) is the wire's diameter of the coil, and D (mm) is the diameter of the magnetic core.
Abstract:
Disclosed herein is a magnetron. The magnetron comprises an anode cylinder (9), upper and lower magnets (12,16) provided to upper and lower portions of the anode cylinder (9), and upper and lower magnetic poles (2,3) connected to the magnets (12,16), respectively. Each of the magnets (12,16) has an inner diameter of 19 ~ 21 mm, a thickness of 11.5 ~ 12.5 mm, and an outer diameter of 50 ~ 54 mm.