Abstract
A passive RFID tag derives its power from RF signal emitted by a RFID reader and responds its modulated backscatter signals to the reader. Because of the large propagation loss, the accessible range of a passive RFID tag is hence limited. In addition, the readability of a passive RFID tag is often influenced by multipath fading problems. In order to mitigate the problems, a multi-carrier UHF passive RFID system utilizes isolated power sources which provide additional power to passive RFID tags via a carrier frequency different with the RFID reader operating frequencies. This approach however affects reader command demodulation circuit of a passive RFID tag. This work proposes a new passive tag demodulation circuit design which is more suitable for multi-carrier RFID systems.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
