Patent Number: 8,791,866

Title: Antenna device and wireless communication apparatus including the same

Abstract: A non-feeding element is provided with a proximity-providing gap from a feeding element, and a resonant state is generated there by capacitive coupling. The non-feeding element resonates at a frequency different from a resonant frequency of the feeding element. The feeding element and the non-feeding element have alongside-ground-terminal extending portions spaced from an edge surface at one end of a ground surface formed on the circuit board and to extend in a direction along the edge surface at the one end of the ground surface. The feeding element and/or the non-feeding element is formed three-dimensionally with a plurality of bending portions so that at least parts of the alongside-ground-terminal extending portion of the feeding element and the ground-terminal extending portion of the non-feeding element have substantially the same amount of spacing from the ground surface.

Inventors: Ishihara; Takashi (Ishikawa-gun, JP), Sato; Jin (Beijing, CN), Kaminishi; Yuji (Ishikawa-gun, JP), Ito; Shigekazu (Hakusan, JP)

Assignee: Murata Manufacturing Co., Ltd.

International Classification: H01Q 1/24 (20060101)

Expiration Date: 7/29/12018