Method and device for determining signal line length, printed circuit board and electronic equipment

Abstract

The invention relates to the technology in the communication field, in particular to a signal wire length determining method and device, a printed circuit board and an electronic device. The signal wire length determining method includes the following steps that the signal wave length of a transmitted signal in a signal wire is obtained; according to the signal wave length, alternative lengths of the signal wire are determined; each alternative length is an integral multiple of one fourth of the signal wave length; according to the distance between board card ports, wherein the signal wire is predetermined to connect the board card ports, the final length of the signal wire is determined among the alternative lengths; a signal wire with the final length is formed in a connection plate and the signal wire is used for connecting the board card ports. According to the signal wire length determining method and device, the printed circuit board and the electronic device, the length of the signal wire is arranged to be the integral multiple of one fourth of the signal wave length to reduce losses during signal transmission and provide signal quality. In addition, multiple signal lengths are provided at the same time so that a user can determine the most proper signal length according to actual needs.

Description

technical field [0001] The invention relates to the technology in the communication field, in particular to a method and a device for determining the length of a signal line, a printed circuit board and electronic equipment. Background technique [0002] At present, various electronic devices are becoming more and more miniaturized and portable. In the process of miniaturization, the relative positions of various components in an electronic device, as well as the size of each component may change. In some notebook designs, the change of the size of the components will cause the failure of signal transmission. For example, in the reinforced R14W design, after the connection board between the main board and the input and output board is changed from long to short, the signal transmitted by the signal line on the connection board will be reduced. non-compliant. Such as Figure 1a As shown, when the size of the connecting board 1 is not changed, the signal line 2 on the connec...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that while the electronic equipment is miniaturized, the length of some signal lines does not meet the requirements, resulting in large loss of the transmitted signal, and the signal test does not meet the requirements.

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