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RFID Chip Characterization through S-Parameter Measurements and Gene Expression Programming

Janeiro, F. M. ; Costa, J.R. ; Fernandes, C. A. ; Ramos, P.M.

RFID Chip Characterization through S-Parameter Measurements and Gene Expression Programming, Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Montevideo, Uruguay, Vol. 1, pp. 207 - 211, May, 2014.

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Abstract
In this paper a gene expression programming
algorithm usually used in impedance identification is modified to
perform equivalent circuit identification of an RFID chip. The
changes include adapting the cost function to the measured
S-parameters and the inclusion of the microstrip line effects that
alter the measured parameters but is essential in the
measurement setup. The resulting equivalent impedance is
compared to other previously proposed equivalent circuits.