Mitsumi Electric Company Ltd.

Aisin Seiki Kabushiki Kaisha

Tomohiro Shinkawa

Junichi Noro

Kazunari Saito

Takao Kato

Toshihiko Inaba

Nobuo Tamura

Wassom Pierre

Akira Miyoshi

Hisamatsu Nakano

Toshiaki Aizawa

Masaaki Miyata

Akira Yoneya

Takeshi Iizuka

Hideaki Takahashi

Shingo Fujimoto

Eiji Koide

Isao Fukae

Satoshi Kohno

An antenna device includes a ground section including a planar section, a feeding section, a first feeding element arranged along the planar section of the ground section, and a second feeding element including a loop-like body portion arranged parallel to the first feeding element at a predetermined distance from the first feeding element, the loop-like body portion including one end portion bent to be electrically connected to the ground section, and the other end portion bent to be electrically connected to the feeding section. Both of the one end portion and the other end portion of the second feeding element are provided in a vicinity of an outer periphery of the ground section.

Antenna device

In an antenna apparatus, a radiation element includes a perturbation element. A first power feeding line has a first end connected to the radiation element and is configured to feed power to the radiation element. A second power feeding line has a first end configured to feed power to the radiation element through electromagnetic coupling. The radiation element, the first power feeding line and the second power feeding line are arranged on a same plane to constitute a balance type antenna.

Antenna apparatus

In an automobile rear windowpane antenna apparatus including a defogger disposed on a rear windowpane plate at a lower portion thereof an antenna pattern is disposed above the defogger on the rear windowpane plate at an upper portion thereof and is disposed so as to extend between near a right end edge of a window frame and near a left end edge thereof. A feeding point is disposed inside the antenna pattern.

AM/FM windowpane antenna pattern structure wherein feeding point is disposed thereinside

An antenna apparatus includes: a circuit board that has a main surface and a rear surface opposite to each other; an antenna element that is formed of a metal plate and is arranged at a predetermined distance from the main surface of the circuit board; a plurality of legs that extend from the antenna element toward the circuit board; a ground conductor that is formed on the main surface or the rear surface of the circuit board; a feeding pin that supplies power from the circuit board to the antenna element; and a plurality of comb-shaped capacitor patterns that are formed on one of or both the main surface and the rear surface of the circuit board and are electrically connected between the plurality of legs and the ground conductor.

Antenna

An antenna apparatus includes a feed element, a passive element provided so as to be distanced from the feed element, a cable connected to the feed element, a main circuit board to which the feed element and the passive element are mounted, an antenna holder having a holder main surface on which the main circuit board with the feed element and the passive element is held, a first feed element provided surface formed on the holder main surface of the antenna holder in order to hold the feed element and a first passive element provided surface formed on the holder main surface of the antenna holder in order to hold the passive element.

Antenna element

Growing community of inventors

Tokyo, Japan

Tomohiro Shinkawa