Mutual Coupling Reduction Between Implanted Microstrip Antennas on a Cylindrical Bio-Metallic Ground Plane

The mutual coupling between two antennas within a human body model is studied. Our multilayer cylindrical body model includes highly lossy body tissues under which a biocompatible metal implant is inserted. This cylindrical bio-metal implant serves as the common ground plane for the conformal antennas. The mutual coupling between two such conformal microstrip antennas is studied and quantified for different spacing between them. Three methods are proposed to reduce mutual coupling between the two antennas. Each of them are investigated in details and their effectiveness is compared.