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Passively powered radio frequency identification (RFID) tags are devices powered via harvested ultra-high frequency (UHF) radiation emitted by a reader device. These devices are relegated to a form wireless barcode and also applications from simple product identification to more complex applications such as environment sensing. In this paper, we propose and implement a small-size low-power digital...
A fully integrated HF multi-standard RFID transceiver for compact mobile terminals is proposed. Considerations for multi-standard are concerned in each part of the proposed transceiver and all of them are implemented as digitally-controlled components. A transmitter controls its modulation index with a mode selector and its emitting power to tags with a power controller, thus covering various standards...
A CMOS transceiver for a multistandard 13.56-MHz radio-frequency identification reader system-on-a-chip (SoC) is designed and fabricated. The SoC consists of an RF/analog part for modulation/demodulation and a digital part for controlling the transceiver functionality. Prior to designing the integrated circuit, pre-experiments using discrete components and commercial tags are performed. With the results,...
An ultra compact CMOS transceiver for HF multi-standard RFID application is proposed. For supporting multi-standard, two structures are adopted in a transmitter: ASK modulator with various modulation indexes and power control circuit which can control the recognition range between the reader and the tag. A receiver consists of a half-wave rectifier, an ASK demodulator using a supply-independent biasing...
A 13.56 MHz RFID transceiver SoC supporting ISO/IEC 14443 type A/B, 15693, 18000-3 is proposed in this paper. Before designing the circuit, standard analysis is processed. And also, we did a board level measurement for implementation to a chip level. That is, A RFID transceiver test board using commercial components was configured and tested. Using this test board, we can confirm some considerations...
We analyzed 13.56 MHz RFID standards and obtained specifications of transmitting section and receiving section of the RFID reader. With these analyses, we proposed a multistandard 13.56 MHz RFID reader system. For supporting multistandard in 13.56 MHz RFID system, circuits for controlling modulation index and power emitted to the tag are added in transmitter. In order to accept to various response...
A HF (13.56 MHz) RFID receiver architecture SoC (System on Chip) is proposed. The receiver can be used in the standards of ISO/IEC 14443 type A/B, 15693, and 18000-3. Before designing the circuit, standard analysis is processed. And also, we did a previous measurement for preparing implementation as a chip level. That is, a RFID transceiver test board using commercial components was configured and...
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