Detection apparatus for cable assembly radio-frequency leakage and detection method

A cable assembly and testing device technology, which is applied in the field of testing devices for radio frequency leakage of cable assemblies, and can solve problems such as being difficult to implement.

Inactive Publication Date: 2007-03-28
AMPHENOL CNT XIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the method recommended in the GB/T17738.1-199

Method used

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  • Detection apparatus for cable assembly radio-frequency leakage and detection method
  • Detection apparatus for cable assembly radio-frequency leakage and detection method
  • Detection apparatus for cable assembly radio-frequency leakage and detection method

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[0034] As shown in Figure 3 and Figure 4, the test device of the present invention is mainly embodied in a radio frequency leakage signal collector 2 connected in series between a step attenuator and a microwave receiver. This collector 2 has a cylindrical shell 7 , The two ends of the housing 7 are respectively closed by the end cover 12 and the front cover 6. The front cover 6 is connected with a matching load 14 with a voltage standing wave ratio less than 1.05, and this matching load 14 extends into the housing 7; the end cover 12 A ring-shaped absorbing load 11 with an inner cone surface is installed, and six resistors 10 are arranged on the inner cone surface of the absorbing load 11 at intervals, and both ends of each resistor 10 are welded or glued to the end cover 12. A test port 1 for signal output is fixed on the front cover 6. The housing 7 can be one section or multiple sections connected by threads to meet different lengths of the cable assembly under test. 2-8 suppo...

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PUM

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Abstract

The invention discloses test equipment and a test method to leak of RF cable assemblies. Microwave test signals are sent to measured cable assemblies from the RF signal source, and signals are absorbed by matched load through cable assemblies. Microwave pathway is constituted of RF signal generator, cable assemblies, matched load. There is microwave signal leakage existing around the object when the signal goes through the objects. These signals are collected by signals collection device and sent into microwave receiver. We can get the decibel value of the corresponding pieces of RF leakage through the readings letters of RF signal source and microwave receiver.

Description

technical field [0001] The invention relates to a testing technology for radio frequency leakage of a cable assembly, in particular to a testing device and a testing method for a radio frequency leakage of a cable assembly. Background technique [0002] Like connectors, users place requirements on RF leakage (shielding efficiency) for cable assemblies. Due to the complexity of the structure of the cable assembly, there are not only various types of connectors, but also different types of cables, and there are cable assemblies of different lengths. Therefore, it is relatively difficult to perform RF leakage testing on cable assemblies. The cable assembly is actually a coaxial transmission line, so the definition of its radio frequency leakage (shielding efficiency) is equivalent to that of the transmission line. The so-called radio frequency leakage (shielding efficiency) of the cable assembly is the ability of its outer conductor to protect the transmission line from exter...

Claims

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Application Information

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IPC IPC(8): G01R29/08G01R31/00
Inventor 张志谦
Owner AMPHENOL CNT XIAN TECH
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