Switch matrix and test system

Abstract

The invention provides a switch matrix and a test system, and belongs to the technical field of wireless communication transmitting and receiving channel switching test. The switch matrix is an M * N radio frequency matrix, and the M * N radio frequency matrix comprises M * N radio frequency channels, and at least one amplifier module and one attenuator module which are connected to each radio frequency channel; wherein the amplifier module is used for compensating insertion loss on an M * N radio frequency matrix channel; and the attenuator module is used for compensating the consistency of the M * N radio frequency matrix channels. The attenuator module included in the switch matrix can compensate for the consistency of the radio frequency matrix channel so as to dynamically and adaptively adjust the gain of the switch matrix channel and dynamically and adaptively adjust the consistency of the switch matrix channel. The arranged amplifier module compensates for the insertion loss on the radio frequency matrix channel. the influence of traditional matrix insertion loss on the performance of a signal link is compensated.

Description

technical field [0001] The invention belongs to the technical field of wireless communication transmitting and receiving channel switching testing, and in particular relates to a switch matrix and a testing system. Background technique [0002] Wireless communication equipment has developed from 2 antennas to 8 antennas, and now to 64 antennas, and even 128 antennas. The number of channels of wireless communication equipment has increased in scale, in order to realize multi-channel switching of signals, so as to realize reliable transmission and signal test and measurement. [0003] The inventor has long-term research found that the traditional switch matrix only realizes channel switching, but cannot realize channel link gain compensation and multi-channel insertion loss consistency adjustment. Since the insertion loss of the switch matrix is ​​introduced into the system, the uplink and downlink gains of the system Misfits have always been a sore point in the test and meas...

AI Technical Summary

Problems solved by technology

[0003] The inventor has long-term research found that the traditional switch matrix only realizes channel switching, but cannot realize channel link gain compensation and multi-channel insertion loss consistency adjustment. Since the insertion loss of the switch matrix is ​​introduced into the system, the uplink and downlink gains of the system Misfit has always been a pain point in the test and measurement world

Images