Crosstalk simulation modeling method of non-parallel cables and simulation model thereof

Abstract

The invention discloses a crosstalk simulation modeling method of non-parallel cables and a simulation model of the crosstalk simulation modeling method, wherein the simulation model at least comprises: an interference cable, an interfered cable and a grounding flat plate; the interference cable or the interfered cable is selected as a reference cable; a step of applying an excitation signal witha set frequency to one end of the reference cable through an excitation signal applying device is carried out, and a first load with a specified value is applied to the other end; a first test deviceused for testing the amplitude of an interference signal is arranged at a certain position of the reference cable. And the other cable besides the reference cable is split into a plurality of sectionsof parallel sub-cables parallel to the reference cable, a second load with a specified value is applied to two ends of said other cable, and a second test device for testing the amplitude of the interference signal at a certain position is arranged on a certain parallel sub-cable.

Description

technical field [0001] The present invention relates to the technical field of RFID (Radio Frequency Identification, radio frequency identification), in particular to a crosstalk simulation modeling method of non-parallel cables and a simulation model thereof. Background technique [0002] Devices are usually connected by cables, and more and more electronic devices are equipped in a small space, so various cable bundles are densely distributed in a small space, and the cables generate radiation to the outside, and the cables are extremely Crosstalk is prone to occur, and the mutual crosstalk between cables has attracted more and more attention. [0003] Crosstalk simulation between cables is the research direction that most EMC research of electronic products needs to focus on. Studying crosstalk coupling between cables through simulation can more efficiently analyze product conduction, radiated emission or sensitivity performance. [0004] The main theoretical basis for m...

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Problems solved by technology

[0004] The main theoretical basis for many scholars at home and abroad to study cable coupling crosstalk is the transmission line method. The transmission line method is the most important and most commonly used analytical method in the modeling and analysis of cable electromagnetic compatibility. Currently, the commonly used cable crosstalk simulation software in the industry is Based on the TLM transmission line theory, the crosstalk model between cables is replaced by a relatively simple capacitive inductance model through the transmission line method to complete the simulation analysis of cable crosstalk, but this method has certain limitations: the transmission line theory must There are certain limitations in terms of structure and characteristics, and the application of transmission line theory is based on parallel cables, and there are few studies on crosstalk of non-parallel cables.

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