Recovery of Microwave-Digital Signal Integrity ...

This paper presents an equalization technique of analogue-digital or mixed signals disturbed by electromagnetic interference (EMI) and electromagnetic compatibility (EMC) effects by using negative group delay (NGD) circuit for the microelectronic systems application. The basic principle illustrating the mechanism of the equalization technique thanks to the NGD function is explained. To illustrate the efficiency of the technique understudy, an equalization of RC-effect is performed. According to the frequency- and time-domain analyses, a possibility of the distorted signal reconstruction is demonstrated experimentally and by simulations. To confirm the proposed technique efficiency and reliability, the reduction of rise-/fall-time and propagation delay in relative value more than 90 % is performed by using trapezoidal signal with 1 Gbit/s-rate. It is stated that this technique allows to reduce the signal delays.