Patent ID: 8855721

Claim:
A wireless communication device comprising: a first casing including a first conductor and a conductor element connected to the first conductor; a second casing including a second conductor; and a coupling mechanism that couples the first casing and the second casing so as to be rotationally displaceable with respect to each other around a perpendicular axis, wherein the first casing and the second casing are rotationally displaced with respect to each other, so that switching is performed at least between: a first state in which: a predetermined region in the second conductor and the conductor element are located at positions opposite to each other, and the first conductor, the conductor element and the second conductor constitute at least a portion of a first metamaterial, and a second state in which the predetermined region and the conductor element are located at positions not opposite to each other and the first conductor, the conductor element and the second conductor do not constitute a portion of the first metamaterial; and wherein: the first metamaterial electrically connects the conductor element and the second conductor in the first state at a communication frequency of the wireless communication device; the second conductor includes a second conductor element in the predetermined region; and the first conductor or the second conductor includes a third conductor element, and in the second state, the conductor element or the second conductor element, and the third conductor element are opposite to each other to constitute at least a portion of a metamaterial.