Patent ID: 7626554

Claim:
A foldable portable radio apparatus, comprising: a foldable mechanism in which a first casing and a second casing are rotatably connected; a first conductor plate and a second conductor plate that are provided in the first casing; an antenna element, a circuit board, and a feeding unit which connects the first conductor plate to the circuit board that are provided in the second casing; a detecting unit that detects an open/close status of the foldable portable radio apparatus; a first switching unit that switches between an electrically opened state and an electrically short-circuited state of the first conductor plate and the second conductor plate in accordance with the detected result by the detecting unit; and an antenna switching unit that selects the first conductor plate or the antenna element as an antenna, wherein the antenna element, the circuit board, and a second circuit board are provided in the second casing, the foldable portable radio apparatus further comprising: a second switching unit that switches between an electrically opened state and an. electrically short-circuited state of the circuit board and the second circuit board in accordance with the detected result by the detecting unit.