A Fully Integrated 2.4-GHz CMOS RF Transceiver for IEEE 802.15.4

Abstract

A fully integrated 2.4 GHz CMOS transceiver IC for the low power wireless personal area network (WPAN) is reported. This is based on a dual-conversion architecture receiver and transmitter which are suitable for silicon integration. The frequency synthesizer offering 1.92 GHz and 480 MHz quadrature LO signals are also integrated on the radio chip. In the proposed transceiver, linearity is improved by using current mirror amplifier based mixer. The optimization between dynamic range and current consumption has been achieved by the interleaved analog filter-amplifier chain. The fully integrated transceiver is fabricated in 0.18 /spl mu/m CMOS technology and the die area of the single-chip IC is 3.7 mm /spl times/ 3.6 mm. It consumes only 31 mW in the receiver mode and 42 mW in the transmitter mode with 1.8-V supply.