In the process of high-frequency high-speed flexible printed circuit board(FPCB)signal transmission,it is easy to have reflection,crosstalk and other losses that affect the integrity of the signal.This paper analyzes the difference between the circuit simulation design and the actual test,studies the influence on the signal integrity of the FPCB edge-board contact,analyzes the influence factors of the resonant point of the insertion loss waveform from the test results,proposes the design concept of reducing the signal loss,and provides design ideas for reducing the loss of the FPCB edge-board contact.
signal integrityflexible printed circuit board(FPCB)transmission linetransmission line lossedge-board contact
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