Design of planar implantable compact antennas for vaginal sensor for early detection of calving
Résumé
Two implantable antennas radiating at the Industrial, Scientific, and Medical (ISM) frequencies 868 and 915 MHz were proposed to be employed in a vaginal sensor. These structures were developed in the context of the industrial project "Vel'Phone sensor" funded by Medria, a French company for monitoring services. The compact antennas consist on a meander monopole and a metamaterial (MTM)-inspired monopole. Both antennas were optimized in free space and in a model of the environment faithful to reality (inside the cow vagina). Prototypes were manufactured and tested using liquid phantom. We proved the potential of the overall system integrated with an electronic card and biocompatible material in real conditions. Simulated and measured results are presented and discussed. © 2017 Euraap.