A New Compact and Low loss UHF RFID TAG

Abstract

This paper aims to present a new compact and low loss UHF RFID TAG using meander technique to obtain a miniaturized Design validated to operate in Moroccan UHF band. The proposed RFID TAG is designed on PI substrate with a relative dielectric constant of 3.5, tangent loss of 0.0027 and height0.0508mm. Using an EM solver, the proposed design is matched to ALIEN H3 microchip with Z_Microchip=30.39-i*211 Ohm, it’s simulated and confirmed in Moroccan UHF band with a return loss around -20.49dB at 868MHz with a bandwidth of 16.8MHz, a simulated gain 1.82dBi and a good theoretical read range about 2.6m. The global dimension of the structure is 25×70 mm2 which is λ/14×λ/5 mm², it’s very suitable for RFID applications that required a compact and integrated RFID TAG with a middle-read range.