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Switch filter array box system

A technology for switching filters and filters, applied in transmission systems, instruments, transmission monitoring and other directions, can solve the problems of not using automatic testing, time-consuming, etc., and achieve the effect of saving testing time and manpower, and facilitating application

Inactive Publication Date: 2009-06-10
TELECOMM METROLOGY CENT OF MINIST OF IND & INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are many filters required, 8 are often used. It is time-consuming to test each filter separately, and automatic testing is not used.

Method used

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  • Switch filter array box system
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Embodiment Construction

[0022] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiment of the switched filter array box system according to the present invention is only an example, but the present invention is not limited to this specific embodiment.

[0023] figure 1 A schematic diagram of the switched filter array box system according to the present invention is shown. The basic composition of the system includes a transformer, which is used to convert AC to DC, and provides control voltage, as well as 8 switches, 2 8-to-1 RF switches, several RF lines, and so on.

[0024] like figure 1 As shown, power for all switches and RF switches is provided by a transformer that converts 220 VAC to DC. 8 switches, respectively used for manual control to select the corresponding 8 RF switch paths. The two 8-to-1 radio frequency switches are used to select one of the 8 radio ...

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Abstract

The invention provides a switch filter array case system, used for calibration of a spectrum analyzer and a vector signal analyzer. The switch filter array case system, comprises a transformer used for converting AC into DC and providing control voltage and eight switches, two 8-to-1 RF switches and a plurality of RF lines and the like. According to the inventive switch filter array case system, a single discrete filter is integrated together, after connecting an input port and an output port of the switch filter array case system, the required filter is selected through the switch, thereby realizing filtering, accordingly once connecting, multiple usage, testing time and manpower are greatly saved. The invention can be conveniently applied to a spectrum analyzer automatic calibration system and the automatic calibration requiring the filters.

Description

technical field [0001] The present invention generally relates to a switching filter system, and more particularly relates to a switching filter system for calibrating spectrum analyzers and vector signal analyzers. Background technique [0002] In the field of wireless communication measurement, spectrum analyzers and vector signal analyzers are very commonly used instruments, and their parameters need to be calibrated according to national regulations. When calibrating the second and third harmonic distortion of the spectrum analyzer and vector signal analyzer and calibrating the third-order intermodulation distortion of the spectrum analyzer, the low-pass filter of the measured frequency point needs to be used. Since there are many required filters, 8 are often used, and it is time-consuming to test each filter separately, and automatic testing is not used. [0003] Therefore, in view of the above shortcomings, it is urgent to provide a switching filter system for calibr...

Claims

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Application Information

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IPC IPC(8): G01R15/00G01R35/00H04B17/00
Inventor 吴镝张睿冉志强冯硕郭隆庆王南卢民牛
Owner TELECOMM METROLOGY CENT OF MINIST OF IND & INFORMATION TECH