Design of a low power multistandard transceiver chain based on current-reuse VCO

This paper presents a system level design of a low power multistandard transceiver chain, where a wideband frequency synthesizer based on current-reuse VCO is implemented, which can save the half power comsumption campared to the conventional VCO. Adaptive equalizer for image rejection and phase calibration is implemented for receiver. The non-idealities such as gain and time mismatches for ΣΔ quantization noise compensation path, imbalance amplitudes in current-reuse VCO and image interference are analyzed and solved by the proposed architecture. Simulation results confirm the theoretical predictions that the proposed architecture can support multistandard RF signal transmission and receiving with significantly low power performance.