Methods and devices are provided for implantable medical devices. The device comprises a device housing that has an electronics module, an electrode, an antenna, and a header that has a main body. The main body is formed of a ceramic material that includes side walls, a distal end and a proximal mounting end. The main body has an electrode retention region and an antenna retention platform. The antenna extends along the antenna retention platform. The electrode is provided at the electrode retention region. The mounting end includes electrode and antenna connectors. The main body includes a first plated trace formed through the ceramic material to be electrically coupled to the electronics module in the device housing. Between the antenna and the antenna connector, the main body includes a second plated trace formed through the ceramic material between the electrode and the electrode connector.