An implantable medical device comprising: a rechargeable power source coupled to one or more electrical circuits located within a housing of the implantable medical device, the rechargeable power source configured to provide electrical power to the one or more electrical circuits; a receive antenna configuration comprising at least one receive coil comprising an electrical conductor forming a coil winding, the coil winding positioned within an interior cavity enclosed by the housing of the implantable medical device, the coil winding formed into a curved shape that conforms to a curvature of at least a portion of an inner surface of the housing that at least partially encloses the interior cavity, the coil winding positioned adjacent to the curvature of the inner surface so that the coil winding bends along and is positioned adjacent to the curvature of at least the portion of the inner surface, the receive coil configured to generate an electrical current induced into the at least one receive coil when an externally generated magnetic field is imposed onto the at least one receive coil; and recharging circuitry coupled to the at least one receive coil and to the rechargeable power source, the recharging circuitry configured to receive the electrical current induced into the at least one receive coil and to provide a recharging current to the rechargeable power source, wherein the at least one receive coil and the recharging circuitry are configured to provide at least a minimum level of recharging current for a given level of magnetic field intensity provided by the magnetic field imposed on the at least one receive coil for a plurality of orientations of the magnetic field direction relative to an orientation of the implantable medical device; and characterized in that the coil winding of the at least one receive coil includes an electrical conductor formed into an infinity shaped coil winding. a rechargeable power source coupled to one or more electrical circuits located within a housing of the implantable medical device, the rechargeable power source configured to provide electrical power to the one or more electrical circuits; a receive antenna configuration comprising at least one receive coil comprising an electrical conductor forming a coil winding, the coil winding positioned within an interior cavity enclosed by the housing of the implantable medical device, the coil winding formed into a curved shape that conforms to a curvature of at least a portion of an inner surface of the housing that at least partially encloses the interior cavity, the coil winding positioned adjacent to the curvature of the inner surface so that the coil winding bends along and is positioned adjacent to the curvature of at least the portion of the inner surface, the receive coil configured to generate an electrical current induced into the at least one receive coil when an externally generated magnetic field is imposed onto the at least one receive coil; and recharging circuitry coupled to the at least one receive coil and to the rechargeable power source, the recharging circuitry configured to receive the electrical current induced into the at least one receive coil and to provide a recharging current to the rechargeable power source, wherein the at least one receive coil and the recharging circuitry are configured to provide at least a minimum level of recharging current for a given level of magnetic field intensity provided by the magnetic field imposed on the at least one receive coil for a plurality of orientations of the magnetic field direction relative to an orientation of the implantable medical device; and characterized in that the coil winding of the at least one receive coil includes an electrical conductor formed into an infinity shaped coil winding.