International Journal of Antennas and Propagation

Research Article

Modelling and Design of HF RFID Passive Transponders with Additional Energy Harvester

Table 3

Calculated and measured parameters of the developed transponder.


Transponder state	Status of energy harvester		Parameter	Calculating results	Measuring results

1	OFF	^a0 mW		—	^b0.6 m
				^c0.028 A/m ^d0.027 A/m	^e0.027 A/m

2	ON	^a1 mW		—	^b0.35 m
				^c0.120 A/m ^d0.121 A/m	^e0.123 A/m

3	ON	^a4 mW		—	^b0.19 m
				^c0.461 A/m ^d0.454 A/m	^e0.462 A/m

Measurement: oscilloscope Tektronix DPO71254B, probes P7504, CT1.
^bUID measurement: inventory command (0x01) ISO/IEC 15693 (FEIG ID ISOStart 2011 version 08.03.01).
^cCalculation: equation (7) for RWD-transponder model (square RWD antenna model [38]; transponder antenna loop: HyperLynx 3D EM model; chip: product specification data).
^dCalculation: RWD antenna model on the base of measured .
^eMeasurement: spectrum analyzer R&S FSL18, magnetic near-field probe HZ-14.