Design of a Low Power Compensated 90nm RF Multiplier with Improved Isolation Characteristics for a Transmitted Reference Receiver Front End
In this paper, a double balanced radio frequency multiplier is presented which is customized for transmitted reference Ultra WideBand (UWB) receivers. The multiplier uses 90nm model parameters and exploits compensating transistors to provide controllable gain for a Gilbert core. After performing periodic and quasi-periodic non-linear analyses the RF mixer (multiplier) achieves a voltage conversion gain of 16dB and a DSB noise figure of 8.253dB with very low power consumption. A high degree of LO to RF isolation (in the range of -94dB), RF to IF isolation (in the range of -95dB) and LO to IF isolation (in the range of -143dB) is expected for this design with an input-referred IP3 point of -1.93dBm and an input referred 1dB compression point of -10.67dBm.