Design and Implementation of a RFID Transponder Chip using CMOS Process

CMOS 공정을 이용한 무선인식 송수신 집적회로의 설계 및 제작

  • 신봉조 (충북대학교 전기전자컴퓨터공학부 컴퓨터정보통신연구소) ;
  • 박근형 (충북대학교 전기전자컴퓨터공학부 컴퓨터정보통신연구소)
  • Published : 2003.10.01


This paper describes the design and implementation of a passive transponder chip for RFID applications. Passive transponders do not have their own power supply, and therefore all power required for the operation of a passive transponder must be drawn from the field of the reader. The designed transponder consists of a full wave rectifier to generate a dc supply voltage, a 128-bit mask ROM to store the information, and Manchester coding and load modulation circuits to be used for transmitting the information from the transponder to the reader. The transponder with a size 410 x 900 ${\mu}$m$^2$ has been fabricated using 0.65 ${\mu}$m 2-poly, 2-metal CMOS process. The measurement results show the data transmission rate of 3.9 kbps at RF frequency 125 kHz.


RFID;Load Modulation;Damping;Transponder Chip


  1. IEEE Radio Frequency Integrated Circuits Symposium Traditional and emerging technologies and applications in the radio frequency identification (RFID) industry John,R.Tuttle
  2. IEEE J. of Solid State Circuits v.30 no.3 A low-power transponder IC for high performance identification system U.Kaiser;W.Steinhagen
  3. RFID Handbook: Radio-Frequency Identification Fundamentals and Applications Klaus Finkenzeller