Abstract:

The traditional connectors of the Press-fit style need to plug in each connection, so the insertion force will make pins subjected to wear and kink. To avoid this problem, a novel capacitive coupling connector is presented based on the AC coupling principle in this paper. Two overlapping transmission lines generate coupling capacitance which will make the signal transport from the transmitter to the receiver. The phenomenon of the pins wear and kink are eliminated based on the contact-less of the signal transmission interfaces and zero insertion force. By analyzing the effect of the physical structure of the capacitive coupling connector on the pulse waveform at the receiving end, a strategy for selection of the size of the connector and an equalization method is proposed to reduce the inter-symbol interference and improve the signal transmission rate. Simulation results show that the signal transmission data rates of the capacitive coupling connector is up to 16Gb/s.

Key words: AC coupled interconnect, non-return to zero, connector, inter-symbol interference