DE1204335B - Reflex klystron - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

HOIj

H 03 b

German class: 21g-13/17

V16809IX d / 21g
August 22, 1955
November 4, 1965

The invention relates to the construction of reflex klystrons. Such speed modulated Tubes usually contain a cavity resonator and a reflector for the electron beam. The manufacture of these tubes has previously been relatively expensive because of the assembly very high accuracy is required for the individual parts.

It is therefore an object of the invention to provide a reflex klystron to design so that with relatively simple means a reliable and exact structure is achieved. The tubular casing should consist essentially of pressed or drawn metal parts can be manufactured, whereby the total cost of the tube in relatively low limits let hold.

It is known to manufacture the housing of a reflex klystron from two hollow cylinders soldered together, one of which is the reflector electrode and the other is the cathode, an acceleration electrode and includes a cavity resonator. In this known design, the hollow cylinder, which contains the cathode, the accelerating electrode and the cavity resonator, one essential larger diameter than the hollow cylinder which receives the reflector electrode. The smaller hollow cylinder is soldered with an outwardly directed flange to the end wall of the larger hollow cylinder.

This known arrangement has the disadvantage that the heat dissipation from the at the end wall of the large hollow cylinder arranged grid is relatively unfavorable and that for the connections of the Reflector electrode on the one hand and the other electrodes on the other hand differently shaped bases or closing parts are required.

These disadvantages are eliminated according to the invention in that the two hollow cylinders to the mutually facing ends have the same diameter and except for the passage point for the electron beam are closed that they are frontally soldered together and that the outward Parts of the cylinder expand in sections and are shaped at the outer ends so that they are suitable for receiving end parts (bases) of practically the same dimensions.

Details emerge from the description of an exemplary embodiment that is shown in the drawing is.

The drawing shows a longitudinal section through a reflex klystron according to the invention.

The housing of the klystron tube consists of two reflex klystrons

Applicant:

Varian Associates, Palo Alto, Calif. (V. St. A.)

Representative:

Dr.-Ing. W. Reichel, patent attorney,

Frankfurt / M. 1, Parkstrasse 13th

Named as inventor:

Bernard C. Gardner, Los Altos, Calif. (V. St. A.)

Claimed priority:
V. St. v. America December 23, 1954
(477157)

drawn hollow metal cylinders 1 and 1 ', which abut with their end walls. By doing The beam generation system 2 is arranged in the lower hollow cylinder 1. Furthermore, in the lower hollow cylinder a hollow cylindrical anode 20 fixed by means of a slightly conical disc 21, e.g. soldered in. At the inner end of the hollow anode 20, a grid 22 is provided, which is a small distance of the opposite grid 23. This is located in a ring 24 with the End wall 25 of the hollow cylinder 1 is firmly connected. The end wall 25 'of the upper hollow cylinder 1' lies against the end wall 25 directly and is with her in this position z. B. connected by soldering.

A reflector 26 is arranged opposite the grid 23, which the electrons into the resonance space 27 drives back, which is bounded by the hollow cylinder 1, the connecting piece 21 and the anode 20 will.

The reflector 26 is attached to a base 3 'with the aid of pieces of wire 17'. This is carried by an annular component 4 'which is connected, for example, by soldering at the point 5' to the widening part 6 'of the hollow cylinder 1'; the outer end of the hollow cylinder 1 'is closed off by a base plate or a cover T.

In a similar way, the beam generation system 2 is also held in a base 3 by means of supports 17.

509 720/334

This is carried by a ring 4, which at the point 5 with a widening part 6 of the hollow cylinder 1 is soldered. The hollow cylinders and 1 'together with their base, cathode and reflector components can largely be manufactured from standardized fitting parts of the same type. The part with the beam generation system as well as the part with the anode and the reflector can easily be aligned so that they are in an exactly central position after the assembly of the tube.

If only one fixed reflector voltage for a number of tubes with different frequency ranges is to be used then one can determine the length of the wires 17 'and thus the distance between the Change the grid 23 and the reflector 26. However, if a fixed reflector voltage is not required is, then the wires 17 'for a complete series of tubes with a stepwise changed working frequency can also all be made with the same length will.

Claims (1)

Claim ·. Reflex klystron with metallic housing, which consists of two hollow cylinders soldered together consists of which one is the reflector electrode and the other is the cathode, one Contains acceleration electrode and a cavity resonator, characterized in that that the two hollow cylinders have the same diameter at the ends facing one another have and are closed except for the passage point for the electron beam that they are frontal are soldered together and that the outward parts of the cylinder are in sections expand and are shaped at the outer ends so that they are practically the same size for receiving end parts (sockets) are suitable. Considered publications:
German patent specification No. 809 328. 1 sheet of drawings 509 720/334 10.65 © Bundesdruckerei Berlin