Crosstalk spectrum calculation method

A calculation method and spectrum technology, applied in the field of interference spectrum calculation, can solve problems such as inaccurate calculation of crosstalk spectrum
CN104865441AActive Publication Date: 2015-08-26INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Publication Date
2015-08-26

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Abstract

The invention provides a crosstalk spectrum calculation method comprising the following steps that step A, an interference source and sensitive equipment in a crosstalk system are confirmed; step B, interference source spectrum, interference source equipment impedance, interference source load impedance, sensitive equipment impedance and sensitive equipment load impedance are measured; step C, short-circuit and open-circuit input impedance of crosstalk wiring harnesses under different frequencies is measured, and frequency-dependent self-parameters and mutual parameters of the crosstalk wiring harnesses are calculated; step D, a crosstalk frequency domain model between the wiring harnesses is established, and a crosstalk frequency domain expression is solved; and step E, crosstalk spectrum is obtained by utilizing the measured interference source spectrum, all equipment and load impedance thereof and the calculated crosstalk wiring harness frequency-dependent parameters through the crosstalk frequency domain expression.
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Description

technical field

[0001] The invention relates to a calculation method of interference spectrum in the field of electromagnetic compatibility, in particular to a calculation method for crosstalk spectrum between wire harnesses. Background technique

[0002] With the development trend of miniaturization and intelligence, the integration of electronic equipment is getting higher and higher, and there are often situations where wiring harnesses are arranged adjacent to each other, which will cause crosstalk between wiring harnesses and cause electromagnetic compatibility problems. And with the integration of high-power electrical equipment and the increase of operating frequency, the impact of crosstalk becomes more and more serious. Crosstalk is essentially a near-field coupling phenomenon, which is closely related to interference sources, sensitive equipment, and electrical parameters of crosstalk wiring harnesses. In order to ensure the stability and safety of equipment work,...

Claims

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