Device of improving radio frequency switch matrix channel isolation

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 operation, easy integration, and easy maintenance
CN104967463AActive Publication Date: 2015-10-07THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
Publication Date
2015-10-07

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Abstract

A device of improving radio frequency switch matrix channel isolation provided by the present invention is characterized by comprising a universal interface unit, a control unit, a driving unit, a crosspoint matrix array unit, a row isolation array unit 1, a row isolation array unit 2, a column isolation array unit 1 and a column isolation array unit 2, wherein a main control computer sends a channel control code to the control unit via the universal interface unit, the control unit decodes the addresses and sends the codes to the driving unit, and the driving unit turns on or turns off the switches in the crosspoint matrix array unit, the row isolation array unit 1, the row isolation array unit 2, the column isolation array unit 1 and the column isolation array unit 2 according to the sent different codes, thereby controlling the corresponding frequency switch matrix channels. The device of improving radio frequency switch matrix channel isolation of the present invention is convenient to operate and maintain, is strong in versatility, high in radio frequency access isolation index and internal integration level and smaller in size, 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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