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This paper presents the design and characterization of a novel, compact, multilayer, passive UHF-RFID tag solution for implantable biotelemetry based on low-temperature co-fired ceramic (LTCC) technology. A spiral planar inverted-F antenna (PIFA) was matched to the UHF integrated circuit (IC) impedance by an inductor line. The LTCC process allowed the IC to be embedded in a sealed cavity. Simulations...
The performance variations of implantable antennas due to the influence of the phantom model dimensions, the shape or the implant depth is reported in this paper. Three 2D-square spiral PIFA prototypes operating in the Medical Device Radiocommunications Service (MedRadio) frequency band (401–406 MHz) and in the Industrial Scientific and Medical bands (866 MHz and 2.45 GHz) are presented and characterized...
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