Phase-Encoded Chipless RFID Transponder for Large-Scale Low-Cost Applications

Author

Balbin, Isaac ; Karmakar, Nemai Chandra

Author_Institution

Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, VIC, Australia

Volume

19

Issue

8

fYear

2009

Firstpage

509

Lastpage

511

Abstract

A novel 3 b chipless RFID transponder is presented. The transponder comprises three microstrip patch antennas, which are loaded with open circuited (O/C) high impedance stubs. The antennas are resonant at nearby frequencies, and when excited with their respective resonant frequency signals, they re-radiate backscattered signals with distinct phase characteristics. This phase information is encoded as hexadecimal bits for the proposed chipless RFID tag. Both the CST Microwave Studio full-wave solver and the anechoic chamber measurements show a 30deg phase step for the 3 b chipless RFID transponder. It it easily transferred to printed technology, and it may find applications in the mass identification market.

Keywords

anechoic chambers (electromagnetic); encoding; microstrip antennas; radiofrequency identification; reflector antennas; transponders; CST Microwave Studio full-wave solver; anechoic chamber; antenna reflector; backscattering; chipless RFID tag; chipless RFID transponder; hexadecimal bits; microstrip patch antennas; open circuited high impedance stubs; phase encoding; resonant frequency; Backscattered phase; chipless RFID; radar cross section (RCS); transponder;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2009.2024840

Filename

5175387