Title :
A magnetic resonant loop antenna to enhance the operating distance of 13.56MHz RFID systems
Author :
Woosuk Kwon ; Yeong-Gyo Gim ; Hyunbin Park ; Shiho Kim
Author_Institution :
Dept. of Electr. Eng., Univ. of British Columbia, Vancouver, BC, Canada
Abstract :
A magnetic resonant loop antenna enhancing the operating distance by improving the wireless power transfer efficiency of 13.56MHz RFID system was proposed. The proposed resonant antenna consists of resonant coils arranged between source coil and device coil coupled to each of them. The effects of resonant coils were measured using a 13.56MHz RFID reader and tag system in addition to simulation using RF simulator. The measurement results from RFID reader and tag show that the maximum operating distance is increased by approximately 96% and amplitude of receiving voltage on the RFID tag antenna is increased by 18% thanks to the magnetic resonance loop antenna.
Keywords :
HF antennas; loop antennas; radiofrequency identification; radiofrequency power transmission; RF simulator; RFID reader system; RFID tag antenna; RFID tag system; device coil; frequency 13.56 MHz; magnetic resonant loop antenna; operating distance enhancement; resonant coils; source coil; wireless power transfer efficiency; Antenna measurements; Antennas; Coils; Magnetic resonance; Passive RFID tags; Wireless communication; Magnetic resonance resonant coil; RFID; Wireless power transfer system;
Conference_Titel :
SoC Design Conference (ISOCC), 2013 International
Conference_Location :
Busan
DOI :
10.1109/ISOCC.2013.6863972
