Abstract
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. Adopting double-sideband amplitude-shift-keying (DSB-ASK) 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 output 1 dB compression point of 13.4 dBm. Occupying 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.
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Liu, S., Wang, X., Shen, J. et al. A novel low-noise high-linearity CMOS transmitter for mobile UHF RFID reader. Sci. China Inf. Sci. 57, 1–8 (2014). https://doi.org/10.1007/s11432-013-4933-3
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DOI: https://doi.org/10.1007/s11432-013-4933-3