Radio frequency switching device for model approval DFS test

A technology of switching devices and models, applied in transmission monitoring, electrical components, wireless communication, etc., can solve the problems that affect the accuracy of test results, increase the workload of testing, poor link stability, etc., and save time and effort in link construction. , improve the accuracy and efficiency, the effect of link attenuation controllable

Active Publication Date: 2014-07-16
RADIOSKY TESTING SERVICES BEIJINGLTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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.

Method used

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  • Radio frequency switching device for model approval DFS test
  • Radio frequency switching device for model approval DFS test

Examples

Experimental program
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Embodiment 1

[0038] This embodiment provides a radio frequency link switching device used for type approval DFS testing, the structural diagram of the device is shown in the attached figure 1 As shown, it includes: multiple coaxial switches, multiple attenuators, multiple adjustable attenuators, multiple power dividers, and multiple impedance matching resistors.

[0039] A plurality of coaxial switches can be respectively connected to a group of attenuators, a group of adjustable attenuators, a group of power dividers, and a group of impedance matching resistors. When conducting type approval DFS tests, according to different test requirements, switch and select different attenuators, adjustable attenuators, power dividers, and matching resistors through coaxial switches. After switching in this way, different radio frequency links are formed due to different switching of the coaxial switch for different requirements.

[0040] The radio frequency link switching device can be connected wit...

Embodiment 2

[0055] This embodiment provides a radio frequency link switching device for type approval DFS testing, and its specific schematic diagram is shown in the appendix figure 2 As shown, it includes: multiple coaxial switches, multiple attenuators, multiple adjustable attenuators, multiple power dividers, and multiple impedance matching resistors.

[0056] In this embodiment, the radio frequency link switching device is provided with A1-A4SMA interface, which is used to connect the master device, and the antenna radio frequency ports of the master device are connected sequentially, and the unconnected SMA ports are connected to the matching resistor through the coaxial switch, as figure 2 As shown in , the coaxial switch is No. 4 switch and No. 5 switch. These four antenna RF ports (when not connected, they are matching resistors, as shown in the figure, matching resistor 2 and matching resistor 3) are all connected to a power divider, and the output of the power divider is anoth...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04W24/06H04B17/309
Inventor 顾海亮彭潇李吉刘晓勇倪正
Owner RADIOSKY TESTING SERVICES BEIJINGLTD
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