초록 ▼

A microstrip RF telemetry antenna is formed on or within the exterior surface of an implantable medical device housing that is formed either of a conductive metal or of a non-conductive dielectric material. The microstrip antenna is formed of an electrically conductive radiator patch layer that is l

A microstrip RF telemetry antenna is formed on or within the exterior surface of an implantable medical device housing that is formed either of a conductive metal or of a non-conductive dielectric material. The microstrip antenna is formed of an electrically conductive radiator patch layer that is laminated upon an exterior facing side of a dielectric substrate layer of relatively constant thickness. A conductive ground plane layer is formed on the opposite side of the dielectric substrate layer to extend parallel to and at least coextensively with the radiator patch layer. The radiator patch layer is coupled to the transceiver circuitry within the implantable medical device housing by a feedthrough extending through the dielectric substrate layer, the ground plane layer and the implantable medical device housing side wall. If the implantable medical device housing is conductive it may form the ground plane layer over which the dielectric substrate layer and the radiator patch layer are formed through deposition or other techniques. If the implantable medical device housing is formed of a suitable non-conductive dielectric material, the ground plane layer is formed on an interior surface thereof and the radiator patch layer is formed on an exterior housing surface thereof, preferably by deposition techniques. The ground plane layer may be recessed to form a cavity backed ground plane that receives the dielectric layer and radiator patch layer within the cavity. The exterior surfaces of the radiator patch layer, the dielectric layer and any exposed surface of the ground plane layer may be electrically insulated by a radome layer.

대표청구항 ▼

[ What is claimed is:] [7.] An implantable medical device, comprising:an implantable telemetry antenna;an implantable medical device housing; anda transceiver coupled to the implantable telemetry antenna for communications between an external medical device and the implantable medical device,wherein

[ What is claimed is:] [7.] An implantable medical device, comprising:an implantable telemetry antenna;an implantable medical device housing; anda transceiver coupled to the implantable telemetry antenna for communications between an external medical device and the implantable medical device,wherein the implantable telemetry antenna is conformal microstrip antenna formed as part of the implantable medical device housing, the microstrip antenna having electrically conductive ground plane and radiator patch layers separated by a dielectric substrate layer,the implantable medical device housing is formed of a non-conductive dielectric substrate layer having an exterior housing surface and an interior housing surface;the conductive ground plane layer is formed as a conductive metal layer adhering to the interior housing surface, andthe conductive radiator patch layer is formed over at least a portion of the exterior housing surface.