93 / 2020-05-22 00:14:41

Wide Input Range Differential Dual Band RF Energy Harvesting System for Battery-Less RFID Applications

Differential dual band Antenna, dual band Matching Network, CMOS Rectifier, RF Energy Harvesting, Ultrahigh Frequency (UHF), RFID

Integrated Circuits and Systems > Analog and Mixed-Signal Circuits and Systems

A wide input range differential dual band RF energy
harvesting system has been designed and presented for a battery
less RFID applications. The proposed architecture includes an
off-chip differential dual band antenna with differnetial dual
band matching network followed by a CMOS cross coupled
rectifier for RF-DC conversion which replaces a battery in several
RFID applications. The proposed differential dual band matching
network for the rectifier provides a peak efficiency of 60% at
-12 dBm at 0.9 GHz and 64% at -16 dBm at 1.8 GHz. The
proposed architecture achieves better efficiency for lower input
power ranges from -20 dBm to 8 dBm which implemented using
UMC 0.18m CMOS Technology.