Title: Circuit board prevents electromagnetic coupling among lines
Application Number: 200520046036 Application Date: 2005.10.28
Publication Number: 000000000 Publication Date:
Approval Pub. Date: 2007.01.17 Granted Pub. Date: 2007.01.17
International Classifi-cation: H05K1/00;H05K1/02;H05K1/11;H05K9/00
Applicant(s) Name: Shanghai Huanda Computer Technology Co., Ltd. Address:
Inventor(s) Name: Kong Zhengshun
Attorney & Agent:
Abstract:
    The utility model disclose a circuit board capable of preventing electromagnetic coupling among lines, which includes: a grounding layer, which is a grounding reference zero potential part disposed on the circuit board; Some isolated set lines connected between the various electronic components on the circuit board, which is a signal transmission medium, and the lines including a grounding line; wherein, the said grounding layer and the said grounding lines are respectively placed at the different circuit layers of the circuit board, and respectively electrically connecting the said grounding layer and the said grounding lines by setting up a number of penetrating holes. Owing to a change of the past connection manner between the grounding layer and the grounding lines, the utility model uses the penetrating holes to respectively connect on a plurality of points, to make the interference signal in the grounding lines to quickly transmit to the grounding layer, which effectively prevents the electromagnetic coupling with other analog signals, and largely reduces the electromagnetic energy radiated outside from the circuit board.
Time: 7
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