SU127711A1 - Antenna Switch - Google Patents

Description

P. G. Surovov and E. V. Golitsyn ANTENNA SWITCH

Submitted April 14, 1959 for N ° 626773/27

to the Committee on Inventions and Discoveries at the Council of Ministers of the USSR Published in "Bulletin of inventions No. 8 for 1960

Antenna switches for shortwave transmitters are known, made in the form of blocks, which consist of symmetrical feeder segments forming a stator and a rotor. The rotors of the blocks usually contain two segments of a symmetrical feeder.

In order to ensure that any transmitter can be connected to any antenna, in such switches it is necessary to have a number of blocks equal to the product of the number of transmitters and the number of antennas. At the same time, the number of contact elements becomes very large, which leads to an increase in the dimensions of the switch and a decrease in the reliability of its operation.

In the proposed switch, these disadvantages are eliminated due to the fact that four segments of a symmetric shielded feeder are used in each rotor of the block, the planes of which are located parallel to the axis of rotation of the rotor. Thus, in each switch unit, it is possible to simultaneously switch in two directions.

A schematic representation of the three positions of the rotor of one of the blocks when switching feeder lines is shown in FIG. 1, 2, 3; in fig. Figure 4 shows the electrical layout of the entire switch.

Each of the rotors contains four segments of 1, 2, 3, 4 symmetric shielded feeder. The planes of each segment are parallel to the axis of rotation of the rotor. Feeders from transmitters and antennas are connected to feeders 5, 6, 7, 8 of the stator unit. In the initial position, the feeder 5 is connected to the feeder 7 by a segment 4, and the feeder 6 with a feeder 8 by a segment 1 (Fig. 1). When the rotor is rotated 45 ° counterclockwise, the feeders 5, 6 and 7, 8 are connected, and when the rotor is rotated 45 ° clockwise, the feeders 5, 8 to 6, 7 are connected.

A number of blocks 9-59 (FIG. 4) form a switch. Feeders of antennas 60-71 and feeders of transmitters 72-77 are connected to the free contacts of the stators of the blocks. With such a switch on, any antenna can be connected to any transmitter,

The described switchboard contains fewer units (for example, six transmitters and twelve antennas instead of seventy-two, only fifty one) and half the number of contact elements compared to the known with the same number of switched antennas and transmitters.

Subject invention

An antenna switch, made in the form of blocks consisting of segments of a symmetrical feeder, forming their stator and rotor, is different because, in order to reduce the size of the switch and increase its reliability, the rotors of the blocks contain four segments of a symmetric screened feeder the planes of each of them are parallel to the axis of the rotation of the rotor.

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