An antenna for use in living tissue and designed to at least one of receive or transmit signals includes a conductive ground plane. The antenna further includes a first conductive patch having at least a first slot. The antenna further includes a second conductive patch having at least a second slot, the conductive ground plane, the first conductive patch, and the second conductive patch being stacked. The antenna further includes a first dielectric substrate layer located between the conductive ground plane and the first conductive patch. The antenna further includes a second dielectric substrate layer located between the first conductive patch and the second conductive patch.
