Matsushita Electric Industrial Co., Ltd.

Junko Yamamoto

Koichi Ogawa

Hiroaki Kosugi

Tomoki Uwano

Kyohei Fujimoto

Haruhiro Kuboyama

Kazuhiro Hirasawa

A small antenna including a dielectric plate, upper and lower conductive plates provided on upper and lower faces of the dielectric plate, respectively, a plurality of conductive reactance posts for connecting, at first positions of the dielectric plate, the upper and lower conductive plates to each other, and a feed point provided at a second position of the dielectric plate such that first and second plane-parallel plate transmission lines separated from each other by the reactance posts are formed by the upper and lower conductive plates.

Small antenna

A small antenna comprising a dielectric substrate, a radiation element provided on one major surface of the dielectric substrate, a ground element provided on the other major surface of the dielectric substrate. A feed point on the ground element is located at a position where a voltage of a standing voltage wave induced on the ground element becomes minimum. The antenna may be further provided with a short-circuit element for electrically connecting one ends of the radiation and ground elements.

Growing community of inventors

Okayama, Japan

Junko Yamamoto