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In this paper we report on the simulation, fabrication, and characterization of planar graphite antennas on flexible polyimide (kapton) substrate, operating in the ISM band. The patch antennas are constructed from pyrolytic graphite sheets adhered to the flexible substrate, and designed to resonate at 2.4 GHz. Simulation and measurements show that the antenna is relatively immune to changes in impedance...
Miniaturized helix antennas are integrated with drug reservoirs to function as RFID wireless tag sensors for real-time drug dosage monitoring. The general design procedure of this type of biomedical antenna sensors is proposed based on electromagnetic theory and finite element simulation. A cost effective fabrication process is utilized to encapsulate the antenna sensor within a biocompatible package...
A comprehensive analysis of the radiation properties of an electrically small folded ellipsoidal helix antenna (EHA) is presented, showing its ability to self-resonate and impedance match without external components. Three antennas with different sizes and geometries have been designed to work at the 2.4-GHz ISM band and are realized using a selective laser sintering (SLS)-based fabrication process...
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