The design of reader for contactless ID card system

비접촉 ID 카드 시스템을 위한 리더 설계

  • 진인수 (충남대학교 전기공학과) ;
  • 양경록 (충남대학교 전기공학과) ;
  • 류형선 (충남대학교 전기공학과) ;
  • 김양모 (충남대학교 전기공학과)
  • Published : 2000.06.01

Abstract

RFID (Radio Frequency Identification) is a technique which is used for identifying different types of objects and tracking people and animals. Passive RFID consists of reader, a passive tag. The reader transmit energy to a tag and read information back from tag. The tag is energized by a carrier frequency which is transmitted by the reader and transmit information back to the reader. In this paper, the circuit for read and write RFID system is presented. The presented RFID system adopts 125kHz carrier frequency, backscattering and PSK for communication method.

Keywords