Patent ID: 8694060

Claim:
A process device wireless adapter comprising: a wireless communications module configured to communicatively couple to a process device of a type used in an industrial process control or monitoring system, a process control loop to which the process device is coupled, and to a wireless receiver, the wireless communications module being configured to be powered, at least in part, by the process device and also configured to interact with the process device in accordance with a standard industry protocol and to provide wireless communication capabilities to the process device; a metallic housing that surrounds the wireless communications module, the metallic housing having a first end and a second end, the first end configured to attach to the process device; an end cap having a metallic shield that contacts the housing second end such that the metallic shield and the housing form a substantially continuous conductive surface and shields the wireless communication module from electromagnetic interference; and an antenna communicatively coupled to the wireless communications module through an aperture in the metallic shield and separated from the wireless communications module by the metallic shield.