An ASK modulator and antenna driver for 13.56 MHz RFID readers and NFC devices

Junghyun Cho, Kyung Won Min, Shiho Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)


We propose an ASK modulator and Antenna driver for multi-standard 13.56 MHz RFID readers and NFC devices. The proposed transmitters of RFID readers and NFC devices consist of ASK modulator, inverting output driving buffer and off-chip antenna with a matching circuit. The ASK modulation depth can easily be controlled by adjusting duty ratio by the delay line circuit. The test chip was fabricated by using a 0.35 μm double poly CMOS process. The measured results demonstrated that the proposed circuit has met the standard specifications.

Original languageEnglish
Pages (from-to)598-600
Number of pages3
JournalIEICE Transactions on Communications
Issue number2
Publication statusPublished - 2006 Jan 1


All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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