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A zero standby power remote control system used for household appliances is presented in this paper. The system consists of two parts. One is transmitting unit and power amplifier which send RF modulated signal. The other is receiving unit and power management block which recover energy, demodulate the RF signal and control the power switch of the household appliances. Both transmit and receive ends...
A low power low cost fully integrated single-chip UHF radio frequency identification (RFID) reader for short distance handheld applications is presented in this paper. The IC integrates all building blocks-including an RF transceiver, a PLL frequency synthesizer, a digital baseband and a MCU-in a 0.18 μm CMOS process. A high-linearity RX front-end and a low-phase-noise synthesizer are designed to...
This paper presents a fully integrated single-chip UHF radio frequency identification (RFID) reader transceiver for short distance handheld applications. The transceiver integrates an OOK modulator and a power amplifier in transmitter chain, an IQ direct-down converter, two operational amplifiers, and two comparators in the receiver chain. A PLL frequency synthesizer is also integrated on the same...
Aiming at the specified protocol of EPC global Class-1 Generation-2, design considerations are expatiated to a novel structure of transmitter front-end for mobile RFID reader with 0.18 um CMOS process. The transmitter front-end consists mainly of an up-conversion mixer, a linear power amplifier (PA) and a non-linear PA. Controlled by the reader's working status, the implemented scheme can transmit...
In this paper, an improved method of power control is introduced to widen the range of output power with high efficiency. Two CMOS class-E power amplifiers (PA) with different output power are adopted in the design. In order to eliminate the phase mismatch of two paths, a continuously adjustable CMOS phase shifter with a predictable phase transfer function is added before each PA. Meanwhile, the drain...
With the recent explosive growth of the market demand for RFID systems, design of RFID tag and reader IC has become one of the most popular research areas. This paper gives a review of several key issues in the UHF RFID tag and reader design. To achieve a higher identification performance, a low cost, low power RFID tag with efficient anti-collision technique which provides a large throughput and...
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