LC-tank inspired miniature antenna for implantable biomedical backscattering application

Abstract

We introduce an LC tank based miniature implantable UHF RFID tag antenna with a footprint of only 5 mm × 5 mm × 1 mm. The method of using a resonant LC tank to minimize the antenna footprint is analyzed with the antenna equivalent circuit and the electromagnetic simulation. The performance of the proposed antenna is evaluated by electromagnetic simulations with a maximum read range of 0.7 m with a 15 mm implant depth in tissue environment.