摘要:
A magnetron comprising an anode portion (60) having an anode cylinder (6) and vanes (7), a cathode portion (50) having a coil-shaped filament (1), magnetic poles (9,10) disposed at the upper and lower ends of the filament, ringshaped permanent magnets (13,14) preferably made of a Sr ferrite magnet containing La-Co, an input portion (70) and an output portion (80). The diameter φa of the inscribed circle at the ends of the vanes (7) constituting the anode portion (60) is optionally in the range of 7.5 to 8.5mm, and the outside diameter φc of the coil-shaped filament (1) constituting the cathode portion (50) is preferably in the range of 3.4 to 3.6mm.
摘要:
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.
摘要:
In such a case that a radial dimension of an outer circumference of a small-diameter strap ring of a magnetron is equal to "Rs1", a radial dimension of an inner circumference of a large-diameter strap ring is equal to "Rs2", a radius of a circumference which is inscribed to tip portions of anode vanes is equal to "Ra", and a radius of a central flat portion of a magnetic piece, which is located in the vicinity of each of the anode vanes, is equal to "Rp", the respective values of Ra, Rs1, Rs2, Rp are set in such a manner that the below-mentioned formulae (1) and (2) can be established: 1.85Ra ≦ (Rs1+Rs2)/2 ≦ 1.96Ra Rs1
摘要:
The invention relates to a device (1) for producing high frequency microwaves comprising a cathode arrangement with heatable cathodes (15) for emitting electrons, two grid arrangements for controlling and focusing fluxes of electrons and an anode (3) for receiving the electrons flowing through the grid arrangements. The cathode arrangement and the first grid arrangement, in addition to a locking element or a throttle element (16), define an input cavity (12) forming a resonant cavity. The anode (3) and the second grid arrangement define an output cavity also forming a resonant cavity. Said cathode arrangement comprises a mounting for the cathode (15) such that a deformation of the cathode (15) is avoided by reducing the distance between the heatable cathode (15) and the grids(18).
摘要:
A magnetron comprising an anode portion (60) having an anode cylinder (6) and vanes (7), a cathode portion (50) having a coil-shaped filament (1), magnetic poles (9,10) disposed at the upper and lower ends of the filament, ringshaped permanent magnets (13,14) preferably made of a Sr ferrite magnet containing La-Co, an input portion (70) and an output portion (80). The diameter φa of the inscribed circle at the ends of the vanes (7) constituting the anode portion (60) is optionally in the range of 7.5 to 8.5mm, and the outside diameter φc of the coil-shaped filament (1) constituting the cathode portion (50) is preferably in the range of 3.4 to 3.6mm.
摘要:
In an output resonant cavity 7 used with a linear electron beam tube such as an IOT, magnetic material 17 and 23 is mounted on walls 12 and 13 of the cavity and defines annular channels within which coils 21, 22 and 27 are located to provide focusing of an electron beam travelling along the axis X-X of a tube located in the apertures 15 and 16. An inner rim 28 locates the electron beam tube in relation to the cavity.
摘要:
In an output resonant cavity 7 used with a linear electron beam tube such as an IOT, magnetic material 17 and 23 is mounted on walls 12 and 13 of the cavity and defines annular channels within which coils 21, 22 and 27 are located to provide focusing of an electron beam travelling along the axis X-X of a tube located in the apertures 15 and 16. An inner rim 28 locates the electron beam tube in relation to the cavity.
摘要:
La présente invention concerne un tube hyperfréquence à au moins un faisceau (32) d'électrons traversant au moins une cavité (34) résonante faisant partie intégrante du tube. La cavité comporte au moins une structure en matériau diélectrique solide de constante diélectrique supérieure à un. Cette structure occupe la majeure partie du volume de la cavité résonante. Une partie du matériau diélectrique est disposée en limite extérieure de la cavité (34) résonante. Application aux klystrons d'encombrement réduit.
摘要:
La présente invention concerne les klystrons. Ils comportent une succession de cavités séparées par des tubes de glissement, réparties en trois blocs (I,II,III). Le premier bloc (I) comprend tout ce qui est en amont d'une première cavité centrale (C1), le troisième bloc (III) tout ce qui est en aval d'une seconde cavité centrale (C2) et le deuxième bloc (II) les cavités centrales (C1,C2). Dans chaque bloc, la somme des longueurs des tubes de glissement est égale à : H + (T x 180°). H est une quantité comprise entre 45 et 135 degrés de plasma et T un entier supérieur ou égal à zéro. Dans au moins un des blocs, T est supérieur ou égal à un et la longueur d'au moins un tube de ce bloc est supérieure ou égale à 135 degrés de plasma. Application aux klystrons à large bande.
摘要翻译:本发明涉及速调管。 它们包括一系列由滑动管分隔开的腔,分为三个区域(I,II,III)。 第一块(I)包括第一中心腔(C1)的上游,第三块(III)在第二中心腔(C2)的下游,第二块(II)中心空腔 C1,C2)。 在每个块中,滑动管的长度之和等于:... H +(T x 180°)。 H是等离子体的45〜135度,T为大于或等于零的整数。 在至少一个块中,T大于或等于1,并且该块的至少一个管的长度大于或等于135度等离子体。 适用于宽带速调管。