RF transceiver design and performance analysis for WCDMA user equipment

A performance analysis of an RF transceiver for UTRA/FDD WCDMA user equipment through simulation is presented. The main building blocks of this transceiver are power amplifier (PA), low noise amplifier (LNA), automatic gain control amplifiers (AGCs), mixers, modulator, demodulator, frequency synthesizers (oscillators and phase lock loop) and variable gain power amplifier driver. All these components are commercially available. Critical RF characteristics of the transceiver, such as adjacent channel leakage power ratio (ACLR), maximum output power, noise figure (NF), gain, 3^rd order input intercept point (IIP3) and selectivity, were analysed based on commercial standard dual conversion transmitter and heterodyne receiver architectures. Results obtained from this simulation could be used as a design methodology for future RF transceiver implementation