Programmable 2.4 GHz signal source for testing of the power stages in modern radiocommunication systems

This paper describes the development and implementation of the Programmable RF (radio frequency) signal source operating with quadrature obtained modulation schemes over a 2divide2.5GHz frequency range and the output power level of -5dBm. The module is based on SDR (software defined radio) architecture with Zero-IF up-conversion and in-baseband modulation signal processing. It characterizes a relatively simple construction and high reconfigurability. Presented measurement results of 2.4GHz PA (power amplifier) and 2.4GHzharr3.5GHz transverter verify acceptable parameters of the devices.