A research on the negative delay circuit in application to signal sampling and processing systems

A new method using negative delay circuit to cancel out the positive group delays due to "transistor latency" in signal sampling and processing systems is proposed in this paper. Using the negative group delay circuit, the advance time more than twenty percent of the input pulse width can be easily be achieved. The underlying principle of the method is that negative feedback can be used to produce negative group delays. It is easily to see that the application of the negative group delay circuit can speed up the communication systems, and the new method proposed in this paper may be widely used in microelectronic communication domain