Patent ID: 8199493

Claim:
An apparatus comprising: a first housing comprising: a first grounded portion; and a first coupling element; and a second housing comprising: a second grounded portion; and a second coupling element, wherein the first housing and the second housing are joined at a joint that is configured to enable relative rotational movement of the first housing and the second housing; and wherein the apparatus has a first configuration in which the first housing and the second housing have been rotated to a first relative orientation at which the first coupling element and the second coupling element are aligned and a radio frequency current path is formed between the first grounded portion and the second grounded portion via the first coupling element and the second coupling element and the apparatus has a second configuration in which the first housing and the second housing have been rotated to a second relative orientation at which the first coupling element and the second coupling element are not aligned and the radio frequency current path is not formed between the first grounded portion and the second grounded portion via the first coupling element and the second coupling element.