VHDL-AMS modeling and simulation of BPSK transceiver system

This paper describes a methodology for top-down design, modeling, and simulation of complete RF system using hardware description language VHDL-AMS. As a demonstration example, we consider a simple BPSK system (transmitter, channel, and receiver) and show the details of VHDL-AMS implementation for each elementary block (mixer, oscillator, amplifier, channel, etc.). Using these behavioral blocks, we simulate our BPSK system and evaluate system performance in the presence of noise. We show that the results of VHDL-AMS simulations match both Agilent ADS results and theoretical calculations. This tutorial-like paper together with the developed library of RF blocks is targeted towards engineers who work on behavioral modeling and simulation of complete RF systems using hardware description languages.