A Low Power Fully CMOS Integrated RF Transceiver for Wireless Sensor Networks in Sub-GHz ISM-band

A fully CMOS integrated radio frequency (RF) transceiver for wireless sensor networks in sub-GHz ISMband applications is implemented and measured. The IC is fabricated in 0.18-μm CMOS technology and packaged in LPCC package. The fully monolithic transceiver consists of a receiver, a transmitter and a RF synthesizer with on-chip VCO. The chip fully complies with the IEEE 802.15.4 WPAN standard in sub-GHz mode. The receiver sensitivity is –98dBm and the transmitter achieves less than 6.3% error vector magnitude (EVM) for 40kbps mode. The chip uses 1.8V power supply and the current consumption is 14mA for reception mode ad 16mA for transmission mode. Index terms – wireless sensor network, integrated circuit, CMOS, RF transceiver, low power