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A novel CMOS transmitter with low TX noise and high linearity is implemented in a 0.18μm 1P6M standard CMOS process for Mobile UHF RFID reader.Adopting double-sideband amplitude-shift-keying(DSBASK)as the only modulation is supported,this transmitter has very low power consumption.A novel analog baseband circuit is proposed to reduce the transmitter noise.With a G′′m–cancellation technology,a highly linear up-conversion active mixer and a power amplifier driver are designed.The transmitter has a measured output1 dB compression point of 13.4 dBm.Occupying a silicon area of about 1 mm2and consuming 144 mW from a1.8 V voltage supply,the transmitter makes the Mobile UHF RFID reader communicate with a transponder in a distance of 1 m conveniently.
A novel CMOS transmitter with low TX noise and high linearity is implemented in a 0.18 μm 1P6M standard CMOS process for Mobile UHF RFID reader. Adapting double-sideband amplitude-shift-keying (DSBASK) as the only modulation is supported, this transmitter has very low power consumption. A novel analog baseband circuit is proposed to reduce the transmitter noise. Top G’’m-cancellation technology, a highly linear up-conversion active mixer and a power amplifier driver are designed. The transmitter has a measured output output of 1 dB compression point of 13.4 dBm. Ocupating a silicon area of about 1 mm2 and consuming 144 mW from a 1.8 V voltage supply, the transmitter makes the Mobile UHF RFID reader communicate with a transponder in a distance of 1 m conveniently.