Alps Electric Co., Ltd.

Hideharu Otake

Tomotaka Suzuki

Makoto Sato

Norio Suzuki

Xi Li

An electronic component (encoder) including an operation body is mounted on a circuit board. The electronic component causes a controller to perform processing in accordance with an operation input by the operation body. The mounting board includes a power-feeding leg piece connected to a wireless communication processor so that high frequency communication is allowed, a first short-circuiting leg piece that is adjacent to the power-feeding leg piece via a cut-out portion, and a second short-circuiting leg piece separated from the power-feeding leg piece. The short-circuiting leg pieces are connected to grounded portions. The impedance is adjusted by appropriately selecting the width or the depth of the cut-out portion. The resonance frequency is adjusted by appropriately selecting the size or the position of the short-circuiting leg piece. Thus, the mounting board operates as an inverted-F antenna in which the power-feeding leg piece functions as a power feeding portion.

Electronic device

An electronic device having a plurality of leader patterns, and penetration portions penetrating the leader patterns, provided in an extension portion of a printed board projecting from a housing. The respective leader patterns are configured to function as connection terminals by connecting directly to lands on a mother board without the use of separate metal terminals.

Growing community of inventors

Miyagi-ken, Japan

Hideharu Otake