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We investigate the strain reliability of passive UHF RFID tags based on antennas printed on two structurally dissimilar textiles. The performance of the tags under strain and during repeated stretching cycles is evaluated through wireless measurements. Initially, both tags achieve read ranges of 9.5 meters and retain high readable ranges under notable, 20%, strain. Our results from a cyclic strain...
We present the fabrication and testing of graphene-based dipole antennas on cardboard, which is a promising low-cost, recyclable, and flexible substrate for future wireless electronics. The letter presents the details of the manufacturing, as well as results from the measurements and simulations. The measured sheet resistance of graphene antenna is 1.9. Overall, a graphene-based...
We outline the development of an RF energy harvester manufactured on regular packaging cardboard using the inkjet-printing technology. The harvester is composed of a planar monopole antenna, impedance matching network and a voltage doubler circuit. The paper summarizes the procedure of achieving highly conductive traces on rough and porous cardboard, describes the circuit and antenna design, and presents...
This paper presents laboratory-scale methods for attaching integrated circuits (ICs) to passive ultra high frequency (UHF) radio frequency identification (RFID) antennas and discusses the effects of the attaching methods on tag performance. Commercial passive UHF RFID ICs were used. The studied attachment methods were strap attachment and direct IC attachment. One antenna design was developed for...
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