Panasonic Corporation

Yutaka Saitoh

Masayoshi Hirai

Kenichi Maeda

Hiroyuki Uejima

Kouta Aoki

Nobuhiro Iwai

Masanori Kubota

Nobuharu Mashima

Yutaka Isoda

Yuichiro Suzuki

Seiichi Nakanishi

In a folding mobile radio device, a gain is lowered considerably in its close state under such a condition that an upper case is excited directly in its open state to aim at a wide band and a high gain is used as an antenna. A folding mobile radio device includes a first case, a second case, a jointing portion for connecting the first case and the second case to open/close, a conductor element arranged in the first case, and a feeding element arranged in the second case. Then, in an open state via the jointing portion, the conductor element and the feeding element come close to each other and are coupled magnetically at a time of feeding a power whereas, in a close state via the jointing portion, the conductor element and the feeding element are apart from each other rather than the open state and are not coupled magnetically at a time of feeding a power.

Folding type portable wireless unit

Herein disclosed is a portable wireless device, comprising: a first casehaving a metal portion; a second case; a hinge portionoperative to rotatably connect the first case with the second case; a circuit boardhaving a ground pattern, the circuit board accommodated in the second case; and a feed portion connected to the circuit board, the hinge portionhaving a rotating shaftformed by a conductive metal, and the first case, the rotating shaftand the ground pattern collectively function as an antenna element, wherein the portable wireless device further comprises a first conductor elementaccommodated in the first casein spaced-apart relationship with the rotating shaftwith a predetermined gap, the first conductor element having an electrical length substantially equal to a half wavelength of a wireless frequency.

Portable wireless device

Growing community of inventors

Ishikawa, Japan

Yutaka Saitoh