Matsushita Electric Industrial Co., Ltd.

Akinori Yanase

Noboru Nomura

Satoshi Yamada

Joji Kane

Michio Sasaki

Hirotaka Ishihara

Takasi Yosida

Shinji Naka

Hirokazu Kaidou

Katsuya Tanioka

An antenna device comprising a conductive earth substrate, a receiving element located in the proximity of said conductive earth substrate and having a receiving terminal, and a transmitting element located in the proximity of said receiving element and having a transmitting terminal, characterized in that an end of said receiving element and an end of said transmitting element are connected to said conductive earth substrate for grounding through a common portion and the frequency band of said receiving element is different from that of said transmitting element.

Antenna unit, communication system and digital television receiver

An antenna apparatus having at least one radiating element. A second radiating element is located opposite a first radiating element. Earth is on the side opposite to the first radiating element with respect to the second radiating element thus opposite to the second radiating element. The second radiating element intervenes between the first radiating element and earth. Either the first or the second radiating element employs a feed terminal.

Antenna apparatus and communication system

Growing community of inventors

Yokohama, Japan

Akinori Yanase