Abstract
The present is proposed a low power RF-transceiver included a receiver and a transmitter. A gain amplifier and a supper regenerative divider construct an RF receiver; a voltage controlled oscillator (VCO) and a one stage power amplifier (PA) consist an RF transmitter. The digital modulation, binary frequency shift-keying (BFSK), is employed to modulate a wireless communication signal for proposed interactive intelligent healthcare monitoring system (IIHMS). The gain amplifier of RF receiver is biased in sub-threshold region for low power application. The proposed RF transceiver implemented in TSMC 0.18-μm 1P6M standard CMOS process with a chip area of 2.47 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . The measurement results show that the power consumption of the RF transmitter and receiver are 2.34 mW and 1.26 mW, respectively, under the lower supply voltage of 1.2 V.
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