An implantable restriction system having an antenna (156) capable of being readily and predictably movable to achieve a desired orientation that is effective to communicate with an external device is provided. The antenna can be movably coupled to a housing such that the antenna can float and/or move freely with respect to the housing (202). The housing can be part of a gimbal element (200) or another component of the system. The antenna can include a weight or a magnetic element to help it achieve the desired orientation. Methods for transcutaneously communicating with an implantable restriction device are also provided.
