Sensitivity and Impedance Measurements of UHF RFID Chips

P.V. Nikitin, K.V.S. Rao, R. Martinez, S.F. Lam
2009 IEEE transactions on microwave theory and techniques  
In this paper, we describe the sensitivity and impedance measurement method for UHF RF identification (RFID) chips. The measurements are performed using an RFID tester (RFID reader with variable output power and frequency) and a vector network analyzer. No special impedance matching is required: chips can be connected to standard 50-connectors allowing the sensitivity and threshold impedance to be measured directly in a fast and efficient way. We present experimental data for two UHF Gen2 chips
more » ... two UHF Gen2 chips (NXP UCODE G2XM and Impinj Monza 2) in thin-shrink small outline packages. The results have been verified using two chip assemblies matched to 50 . This method can also be applied to chips in other packages: flip-chip, strap, etc.
doi:10.1109/tmtt.2009.2017297 fatcat:whoif7yi4vekvbjsip4ietl3py