RF switching devices for type approval dfs testing

Abstract

The invention discloses a radio frequency link switching device for model approval DFS test. The device comprises at least one coaxial switch, at least one attenuator, at least one adjustable attenuator, at least one power divider and at least one impedance matching resistor, wherein the radio frequency link switching device further comprises a plurality of radio frequency links, and at least one radio frequency link is selected through at least one coaxial switch; the strength of a signal to be tested is adjusted to the range required by the testing standard by adjusting at least one adjustable attenuator. By means of the radio frequency link switching device, time and labor are saved in the link building process, test errors can be reduced, accuracy and efficiency of test are improved, and expansibility of model approval is enhanced.

Description

technical field [0001] The invention relates to electronic communication technology, in particular to a radio frequency link switching device used for type approval DFS test. Background technique [0002] DFS (Dynamic Frequency Selection) dynamic frequency selection is a requirement of the International Telecommunication Union for WLAN equipment working at 5GHz or with WLAN equipment. At present, the conventional terminal RF automatic test system refers to an automated test system that uses computer control to automatically complete call establishment, link switching, signal measurement, data calculation and processing, and output test results. It is mainly used in radio frequency index testing of wireless communication terminals. And automatic test system construction, including radio frequency index test and automatic test system construction of wireless terminals such as handheld stations and wireless access points of various standards with 5GHz WLAN. [0003] The radio ...

AI Technical Summary

Problems solved by technology

[0003] The RF switching devices in the prior art are mainly produced by a small number of foreign manufacturers, the production cycle is long, and the degree of limitation is large, the price is expensive, and it is difficult to flexibly apply to different test environments

At present, the DFS test mainly uses advanced test instruments, but in the process of testing the RF terminal equipment, for different test items, it is necessary to carry the corresponding RF link to meet the test requirements. Multiple RF links equipped with

[0004] If the test link is manually installed, it will not only increase the workload of the test, but also increase the error rate during the test process due to the frequent manual replacement of the link, the link stability is poor, and the repeatability of the test addition is poor, which may introduce unnecessary interference and increase Test error, affecting the accuracy of test results

Moreover, at this stage, the function of the RF conformance switching unit is single, and it is impossible to complete the test indicators of all standards for model approval.

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