RU2773715C1 - Control of the movement of conductors in the microwave part of the coaxial microwave switch - Google Patents

Abstract

FIELD: microwave technology.

SUBSTANCE: invention relates to microwave technology, in particular to electromechanical coaxial microwave switches. A coaxial microwave switch contains a housing, a base, conductors, input and output lines with central internal conductors and a control device. In this case, the movement of the conductor is controlled by a pusher together with a permanent magnet, which are installed in the corresponding recesses of the base; the movement of the conductors is carried out using a control device consisting of a housing with coils, a control board and an external connector; in the center of the housing there is a shaft that is mounted in bearings pressed into the housing of the control device; on the shaft on one side an upper disk is fixed with permanent magnets that have opposite polarity relative to the polarity of the magnets on the pushers of the microwave part; two oppositely positioned magnets on the upper disk have a similar polarity of the pusher magnets; to fix the position on the upper disk of the control device, there is a lock, the movement of which is limited by stops on the base; on the other side of the shaft, a lower disk with a permanent magnet is fixed to affect the telemetry system located on the control board.

EFFECT: increase in reliability, a decrease in the failure rate, and a decrease in weight and size characteristics.

1 cl, 5 dwg

Description

The invention relates to microwave technology, in particular to electromechanical coaxial microwave switches with a magnetic switching unit used to switch input and output signals between coaxial transmission lines.

A well-known design of a relay switching device for switching high-frequency signals, consisting of a housing and a base, where there are strips for closing contacts with control rods. Channel switching occurs with the help of a permanent magnet installed in the control rod and in the electromagnet. The permanent magnet in the control rod will repel the magnet in the electromagnet when it is energized [US Patent No. 6650210].

The disadvantage of this design is the increase in weight and size characteristics due to the presence of electromagnetic coils for each element of the control rod, which closes the contacts of the switching device.

The closest analogue is a coaxial microwave switch, where the switching elements are pressed against the contacts by magnetic forces. During operation in unused paths, the switching elements are attracted by the action of magnets mounted on the top plate, which overcome the magnetic forces installed in the housing, pressing the switching elements to the contacts of the RF connectors [US Patent No. 5642086].

The disadvantages of the known switch is low reliability, slow response time and relatively large insertion loss.

The aim of the present invention is to provide a coaxial microwave coaxial switch with magnetic control of coaxial transmission lines, which includes a relatively small number of components, resulting in a small finished product.

The technical result of the invention is the design of the control conductors in the microwave part of the coaxial microwave switch, which has high reliability, low failure rate and low weight and size characteristics.

The technical result is achieved by the fact that the coaxial microwave switch contains a microwave part (case, base, conductors, input and output lines with central internal conductors) and a control device. The movement of the conductor is controlled by a pusher together with a permanent magnet, which are installed in the corresponding recesses of the base. All magnets installed in the microwave part have the same polarity. The movement of conductors is carried out using a control device, consisting of a housing with coils, a control board and an external connector. A shaft is placed in the center of the body. The shaft is mounted in bearings pressed into the housing of the control device. On the shaft, on one side, there is an upper disk with permanent magnets, which have the opposite polarity with respect to the polarity of the magnets on the pushers of the microwave part. The two opposite oval magnets on the top disc have the same polarity of the pusher magnets. The magnets on the upper disk of the control device are located relative to the polarity of the magnets on the pushers of the microwave part in such a way that when the upper disk of the control device is moved to one position, at least two magnets of the upper disk repel the corresponding pusher magnets, thereby forcing the conductors to press against the central inner conductors of the output coaxial lines, while the magnets on the upper disk attract the corresponding pusher magnets with conductors to the wide wall of the base of the microwave part. To fix the position, there is a latch on the upper disk of the control device, the movement of which is limited by stops on the base. On the other side of the shaft, a lower disk with a permanent magnet is fixed to act on the telemetry system located on the control board. When a control voltage is applied to one of the coils, the shaft with the disks rotates.

The invention is illustrated with the help of drawings: Fig. 1 shows a general view of a coaxial microwave switch; fig. 2 - longitudinal section of the microwave part with open contacts; Fig 3 is a longitudinal section of the microwave part with closed contacts; fig. 4 - bottom view of the microwave part; fig. 5 - longitudinal section of the control device.

The proposed method consists in the fact that the coaxial microwave switch contains a microwave part (case (1), base (2), conductors (3), input and output lines (4) with central internal conductors (5)) and a control device ( 6) (Fig. 1). The movement of the conductor (3) is controlled by the pusher (7) together with the permanent magnet (8), which are installed in the corresponding recesses of the base (9) (Fig. 2). All magnets installed in the microwave part have the same polarity. The conductors are moved using a control device (6), consisting of a housing (10) with coils (11), a control board (12) and an external connector (13) (Fig. 5). A shaft (14) is placed in the center of the body. The shaft is mounted in bearings (15) pressed into the body of the control device. On the shaft on one side is fixed the upper disk (16) with permanent magnets (17), which have the opposite polarity relative to the polarity of the magnets on the pushers of the microwave part (figure 5). The two opposite oval magnets (18) on the top disc have the same polarity of the pusher magnets. The magnets on the upper disk of the control device are located relative to the polarity of the magnets on the pushers of the microwave part in such a way that when the upper disk of the control device is moved to one position, at least two magnets of the upper disk repel the corresponding pusher magnets, thereby forcing the conductors to press against the central inner conductors of the output coaxial lines (Fig. 3). At this time, in a given position of the upper disk of the control device, the remaining magnets on the upper disk attract the corresponding magnets of the pushers with conductors to the wide wall of the base of the microwave part (Fig. 2). The movement of all the magnets is coordinated so that the corresponding conductive paths connect and interact simultaneously. To fix the position, a lock (19) is located on the upper disk of the control device, the movement of which is limited by stops on the base (20) (Fig. 4). On the other side of the shaft, a lower disk (21) with a permanent magnet is fixed to act on the telemetry system located on the control board (11) (Fig. 5). When a control voltage is applied to one of the coils (10), the shaft with disks rotates.

Thus, the design of the control of conductors in the microwave part of the coaxial microwave switch ensures high reliability, low failure rate and low weight and size characteristics. Positions in the drawings indicate:

1 - body;

2 - base;

3 - conductor;

4 - input and output lines;

5 - central inner conductor;

6 - control device;

7 - pusher;

8 - permanent magnet;

9 - deepening of the base;

10 - housing of the control device;

11 - coils;

12 - control board;

13 - external connector;

14 - shaft;

15 - bearings;

16 - upper disk;

17 - magnet with opposite polarity;

18 - oval magnet;

19 - latch;

20 - stops on the base;

21 - lower disk.

Sources of information

1. US patent No. 5642086, IPC: H01P 53/00, published 06/24/1997.

2. Patent SU No. 6650210, IPC: H01P 51/30, published 11/18/2003.

Claims (1)

The coaxial microwave switch contains a housing, a base, conductors, input and output lines with central internal conductors and a control device, characterized in that the movement of the conductor is controlled by a pusher together with a permanent magnet, which are installed in the corresponding recesses of the base; the movement of conductors is carried out using a control device, consisting of a housing with coils, a control board and an external connector; in the center of the body there is a shaft, which is mounted in bearings pressed into the body of the control device; on the shaft, on one side, an upper disk with permanent magnets is fixed, which have the opposite polarity with respect to the polarity of the magnets on the pushers of the microwave part; two oppositely located magnets on the upper disk have a similar polarity of the pusher magnets; to fix the position on the upper disk of the control device there is a latch, the movement of which is limited by stops on the base; on the other side of the shaft, a lower disk with a permanent magnet is fixed to act on the telemetry system located on the control board.

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