주입동기식 발진기를 이용한 RFID 리더 반송파 누설 제거 장치 및 방법
양회성, 모상현, 표철식, 박찬원
- 9122938 (2015.09.01)
13ZC1100, 지능형 상황인지 및 IOT 기반 기술개발,
- A transmission leakage signal offset apparatus of a radio frequency identification (RFID) reader is disclosed. The transmission leakage signal offset apparatus may include a signal divider to divide a received signal of the RFID reader, the received signal including a transmission leakage signal, and to transmit the divided received signal to a signal combiner and an injection locked oscillator (ILO); a signal synchronizer to synchronize a phase of the ILO with a phase of the transmission leakage signal; a phase controller to control a phase difference between the received signal of the RFID reader and an output signal of the ILO; and a signal combiner to combine the received signal of the RFID reader and the output signal of the ILO, between which the phase difference is controlled.
- KSP 제안 키워드
- Injection Locked Oscillator, Passive radio frequency identification(RFID), Phase Difference, RFID reader, Radio Frequency(RF), Radio frequency identification (rfid), frequency identification, injection-locked