A device for improving channel isolation of radio frequency switch matrix

A radio frequency switch matrix and isolation technology, applied in the microwave field, can solve the problems of limited number of switches, poor maintainability, and poor versatility, and achieve the effects of easy maintenance, easy operation, and easy integration
CN104967463BActive Publication Date: 2018-07-24THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
Publication Date
2018-07-24

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Abstract

The present invention proposes a device for improving channel isolation of a radio frequency switch matrix, which is characterized in that it includes: a general interface unit, a control unit, a drive unit, a cross-point matrix array unit, a row isolation array unit 1, a row isolation array unit 2, Column isolation array unit 1, column isolation array unit 2; the main control computer sends the channel control code to the control unit through the general interface unit, the control unit decodes the address and sends it to the drive unit, and the drive unit receives the code according to the different codes sent. Switching on or off the switches in the cross-point matrix array unit and row isolation array unit 1, row isolation array unit 2, column isolation array unit 1, and column isolation array unit 2 realizes the control of the corresponding radio frequency switch matrix channel. The invention is easy to operate and has strong versatility; the index of radio frequency path isolation is high; it is convenient for maintenance; the whole device has high internal integration and small volume, and is convenient for the integration of an automatic test system.
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Description

technical field

[0001] The invention relates to the microwave field, in particular to a device for improving channel isolation of a radio frequency switch matrix. Background technique

[0002] The traditional RF switch matrix device does not design the corresponding channel isolation circuit, the isolation between channels is not high, and it is easy to cause interference between channels during multi-channel testing, which affects the test results and cannot meet the test requirements.

[0003] Traditional 128 cross-point RF switch matrix modules such as figure 1 As shown, it is mainly composed of 128 cross-point matrix array units, drive units, dedicated interfaces and control units. The main control computer sends different parameters through a dedicated bus to control each radio frequency switch matrix channel.

[0004] The traditional switch matrix channel is only composed of matrix array units, and the corresponding row isolation array units and column isolation arra...

Claims

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