Title :
Power reflection coefficient analysis for complex impedances in RFID tag design
Author :
Nikitin, Pavel V. ; Rao, K. V Seshagiri ; Lam, Sander F. ; Pillai, Vijay ; Martinez, Rene ; Heinrich, Harley
Author_Institution :
Intermec Technol. Corp., Everett, WA, USA
Abstract :
Kurokawa´s method of calculating the power reflection coefficient from the Smith chart in the situation when one complex impedance is directly connected to another is applied to passive RFID tag design, where power reflection is important, as it determines the tag characteristics. The performance analysis of a specific RFID tag is presented together with experimental data, which is in close agreement with the theory.
Keywords :
antennas; design engineering; impedance matching; radiofrequency identification; RFID tag design; Smith chart; complex impedance; complex impedances; power reflection coefficient analysis; Circuits; Impedance; Passive RFID tags; Performance analysis; Power generation; Propagation losses; RFID tags; Radiofrequency identification; Reflection; Technical Activities Guide -TAG; Antennas; RF identification (RFID); integrated circuits (ICs); power reflection;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2005.854191
