Patent ID: 9048541
Filing Date: 2015-06-02
Classification: A61N,H01Q

Abstract:
1. An implantable medical device for implant within a patient, the device comprising: a case; radio frequency (RF) communication components housed within the case; a header mounted to an exterior surface of the case, the header being disposed only along a single edge of the case; and an antenna coupled to the RF communication components, the antenna having an inverted E shape, wherein the inverted E shaped antenna is fitted within the header; wherein the inverted E shaped antenna has three branches with each of the three branches terminating at respective points on the single edge of the case underneath the header, wherein a first branch of the antenna is capacitive, a second branch provides an RF signal feed and a third branch provides a shunt to ground; wherein the case provides a ground plane for the antenna; wherein the first branch includes a capacitor mounted in series between a distal end of the first branch and a center arm of the antenna with the distal end of the first branch coupled to the case of the device; wherein the capacitor is formed as a parallel plate and mounted via a dielectric to the case of the device.