Communication equipment test device

A technology of testing equipment and communication equipment, applied in transmission monitoring, electrical components, transmission systems, etc., can solve problems such as error-prone, costly, and time-consuming, and achieve the effect of flexible and fast testing

Inactive Publication Date: 2012-05-02
FILTRONIC SUZHOU TELECOMM PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the mass production of the production line, this method will consume a lot of time and is prone to errors
In the same way, in the process of testing other technical indicators, the same problem will also occur

Method used

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  • Communication equipment test device
  • Communication equipment test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment one: see attached figure 1 And attached figure 2 Shown, a multiport low power test of a duplex filter.

[0041] Before the duplex filter is put into use in the communication base station, it is necessary to effectively test its various indicators, and these test indicators include S parameters and so on. S parameters are network parameters based on the relationship between incident waves and reflected waves, which are suitable for microwave circuit analysis. The circuit network is described by the reflected signal of the device port and the signal transmitted from the port to another port. For a two-port network, specifically include S11 (reflection coefficient of port 1 when port 2 is matched), S21 (forward transmission coefficient from port 1 to port 2 when port 2 is matched), S12 (port 2 to port 1 when port 1 is matched Reverse transmission coefficient), S22 (reflection coefficient of port 2 when port 1 is matched). For duplex filters, this is one of the...

Embodiment 2

[0046] Embodiment two: see attached image 3 And attached Figure 4 Shown, multi-port high power VSWR test.

[0047] The difference from Embodiment 1 is: (1) Since it is a high-power test, the core module to be tested is selected as the high-power core module 13; (2) DUT 9 has 6 ports to be tested, so only one stage is required High-power core module 13 without expansion; (3) signal source 10 is connected with variable power source module 16, high-power core module 13 is connected with radio frequency power amplifier 11 through variable option module 14, radio frequency power amplifier 11 It is connected with the variable power source module 16 , and the variable power source module 16 is connected with a power meter 15 ; (4) The standing wave ratio tester 17 is connected with the variable power source module 16 .

Embodiment 3

[0048] Embodiment three: see attached Figure 5 And attached Figure 6 As shown, the multiport test.

[0049] The difference from Embodiment 1 and Embodiment 2 is that the 6 ports to be tested of the DUT 9 are connected to the low-power core module 6 , and the other 6 ports to be tested are connected to the high-power core module 13 . The test equipment includes a spectrum analyzer 12 .

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Abstract

The invention relates to a communication equipment test device, which comprises a computer, a high-low-level controller, a test interface selection core module, a test module and a variable microwave module, wherein the computer is used for running test control software and for transmitting an interface control signal the high-low-level controller is provided with an input end and an output end, and the input end is connected with the computer and receives the interface control signal and generates a corresponding level signal; the test interface selection core module is connected with high-low-level controller and is provided with a plurality of test input interfaces and a plurality of test output interfaces, each test input interface is respectively connected with each test output interface, the high-low-level controller receives the interface control signal and selects a corresponding test input interface; the test module comprises a test part for testing each parameter of tested element; and the variable microwave module comprises multiple microwave parts. Due to the adoption of the communication equipment test device, the automatic test of each tested interface can be realized, different test parts can be selected according to different indexes to be tested, the test is flexible, rapid, high efficient and correct, the test cost can be reduced, and the test efficiency can be improved.

Description

technical field [0001] The invention relates to a test device for automatically testing various indicators of communication equipment. Background technique [0002] For a duplex communication device, such as a duplex filter, its various indicators must be tested before it is put into use in the base station, such as S-Parameter (S parameter), VSWR (standing wave ratio), IMD (intermodulation distortion ), IIP3 (input third-order intermodulation), Noise Figure (noise figure), etc., when all these indicators are qualified, the product can be shipped. [0003] S parameters are network parameters based on the relationship between incident waves and reflected waves, which are suitable for microwave circuit analysis. The circuit network is described by the reflected signal of the device port and the signal transmitted from the port to another port. [0004] VSWR (Voltage Standing Wave Ratio) is an important parameter of radio frequency. The so-called standing wave is caused by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00
Inventor 薛海皋倪峰李晓刚陆建栋李海涛方志国
Owner FILTRONIC SUZHOU TELECOMM PROD CO LTD
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