Complete multi-port vector network measurement device and method for multi-port radio frequency element

Abstract

The invention relates to a complete multi-port vector network measurement device and method for a multi-port radio frequency element. The complete multi-port vector network measurement device comprises a plurality of test modules in one-to-one correspondent with ports to be tested of the multi-port radio frequency element, each test module comprises a signal source, a selector switch and a port test sub-module, the selector switch is used for selecting the working mode of the port as a transmission source signal mode or a receiving signal source mode; and a control module used for controlling the switch of the working mode of each selector switch, obtaining the measurement result of each port test sub-module and processing to obtain an index of each port. By adopting the complete multi-port vector network measurement device and method for the multi-port radio frequency element having the structure, various key indexes, particularly the scanning speed index of the multi-port radio frequency element are perfected, the test cost is greatly reduced, the urgent test demands of a production line on the large-scale multi-port elements are satisfied, and the multi-port radio frequency element has a wider application range.

Description

technical field [0001] The invention relates to the technical field of electronic measuring instruments and meters, in particular to the technical field of multi-port vector network measurement, in particular to a complete multi-port vector network measurement device and method for multi-port radio frequency components. Background technique [0002] The invention discloses a complete multi-port vector network analysis and testing device, which is applied to multi-port radio frequency components, such as the testing of indicators such as standing wave ratio, gain, transmission loss, phase, and channel isolation of MIMO multi-antennas in 4G and 5G communication systems . Each port is a completely independent radio frequency source, which creatively provides N completely independent radio frequency sources and N completely independent radio frequency receivers in the N-port vector network test device, each radio frequency source and receiver The frequency and power can be set ...

AI Technical Summary

Problems solved by technology

[0006] The external matrix switch-type multi-port measurement has a simple solution, which greatly reduces the difficulty of developing the host, but there are several fatal shortcomings, which make this solution unable to perform large-scale multi-port testing of hundreds of ports:

[0007] (1) External switching loss, isolation and other indicators seriously affect the measurement of key indicators of dynamic range and isolation

[0008] (2) Measurement speed is too slow

[0009] (3) Cannot provide RF source for each port at the same time

[0010] (4) The life of the switch is short, the price is expensive, and the cost of testing is high

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