摘要
A novel matching method between the power amplifier （PA） and antenna of an active or semi-active RFID tag is presented. A PCB dipole antenna is used as the resonance inductor of a differential power amplifier. The total PA chip area is reduced greatly to only 240 × 70 μm^2 in a 0.18μm CMOS process due to saving two on-chip integrated inductors. Operating in class AB with a 1.8 V supply voltage and 2.45 GHz input signal, the PA shows a measured output power of 8 dBm at the 1 dB compression point.
A novel matching method between the power amplifier （PA） and antenna of an active or semi-active RFID tag is presented. A PCB dipole antenna is used as the resonance inductor of a differential power amplifier. The total PA chip area is reduced greatly to only 240 × 70 μm^2 in a 0.18μm CMOS process due to saving two on-chip integrated inductors. Operating in class AB with a 1.8 V supply voltage and 2.45 GHz input signal, the PA shows a measured output power of 8 dBm at the 1 dB compression point.
基金
Project supported by the National Natural Science Foundation of China(No.61072010)
the National High Technology Research&Development Program of China(No.2008AA04A 102)
the Important National Science&Technology Specific Projects(No.2010ZX03007- 002-03)
