A highly efficient GSM/GPRS quad-band CMOS PA Module

The highly efficient CMOS Power Amplifier Module (PAM) is designed for quad-band cellular handsets comprising GSM850, EGSM, DCS, PCS and supports Class 12 General Packet Radio Service (GPRS) multi-slot operation. This module integrates an input matching network, a complete power control, and a thermal, over current, and load mismatch protection in a standard RF CMOS process and also contains a high-Q integrated passive device (IPD) for an output-matching network. The modular integration of the IPD makes it easier to manufacture PA module and also guarantees higher power-added efficiency (PAE) when compared with PAM products based on other technologies.