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Detection device of radiation emission intensity of line board structure and detection analysis method

A technology of radiation emission and detection device, applied in the direction of electromagnetic field characteristics, etc., can solve problems such as easy generation of errors

Pending Publication Date: 2017-03-08
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the measurement of this method involves many test equipment such as EMI receivers, and the test results are affected by environmental factors and test equipment, which is very prone to errors

Method used

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  • Detection device of radiation emission intensity of line board structure and detection analysis method
  • Detection device of radiation emission intensity of line board structure and detection analysis method
  • Detection device of radiation emission intensity of line board structure and detection analysis method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as Figure 1~Figure 3 As shown, a detection device for the radiation emission intensity of a line-plate structure includes a test table 4 arranged in a semi-anechoic chamber 3, a metal plate 6 is laid on the test table 4, and a horizontal A single cable 7, the beginning port of the cable 7 is connected to the port one of the network analyzer 8, and the terminal port of the cable 7 is connected to the metal plate 6 through a short wire 9; the cable 7 and the The metal plate 6 forms a line-plate structure, and the biconical antenna 10 receives the radiation of the line-plate structure. The output port of the biconical antenna 10 directly outputs the transmission coefficient or is connected to port 2 of the network analyzer 8 .

[0027] The wire plate structure is grounded through several ground copper strips 11 .

[0028] Both the start port of the cable 7 ...

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Abstract

The invention discloses a detection device of radiation emission intensity of a line board structure and a detection analysis method. The detection device comprises a test desk (4) arranged in a semi-electric wave dark room. A metal plate (6) is laid on the test desk (4). A single cable (7) is horizontally arranged on the test desk (4). A starting end port of the cable (7) is connected with a port 1 of a network analyzer (8). A terminal port of the cable (7) is connected with the metal plate (6) through a short circuited line (9). The cable (7) and the metal plate (6) form a line board structure. A biconical antenna (10) receives radiation of the line board structure. The output port of the biconical antenna (10) directly outputs a transmission coefficient or is connected with the port 2 of the network analyzer (8). According to the invention, the detection device is simple in structure and the measurement results are real and accurate.

Description

technical field [0001] The invention relates to a detection device and a detection and analysis method for radiation emission intensity of a wire-plate structure, belonging to the technical field of electromagnetic compatibility. Background technique [0002] In the current conventional EMC testing and EMC design, there are a large number of wire-board structures. For example, MIL-STD461F often involves the wire board structure in various tests of the equipment under test. And this structure is one of the main factors that the electromagnetic radiation of electronic equipment exceeds the standard in the low frequency band (30MHz-200MHz). Therefore, the radiation emission intensity of the wire-board structure will have a potential impact on the electromagnetic radiation performance of the entire system, and even cause the radiation emission intensity of the system to exceed the standard. Therefore, the research and analysis of the radiation emission intensity of the wire-boa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/08
Inventor 万发雨胡广许宏炜
Owner NANJING UNIV OF INFORMATION SCI & TECH
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