Toyota Jidosha Kabushiki Kaisha

Nippon Sheet Glass Company, Limited

Toyota Jidosha Kaisha

Hiroshi Yotsuya

Hiroshi Kondo

Harunori Murakami

Kaoru Sakurai

Hajime Murakami

Yoshiro Okamoto

An antenna element is mounted on a glass of a rear quarter window of a vehicle along the edge thereof. A coupling element is provided midway along said antenna element for coupling between two segmented elements with phase adjustment between reception signals thereof in a specific frequency range. The coupling element connects the two segmented elements in lower frequency range, and disconnects the two elements in higher frequency range. The length of the antenna element is automatically corrected in respective low and high frequency ranges so as to cover a wide range.

Window antenna for a vehicle

An antenna device for an automobile comprises at least one feeding part to be connected to an antenna feeder line, which is provided near the front edge or the rear edge of a side window panel at the rear part of the automobile, a first antenna strip connected to the said feeding part so as to extend in the substantially longitudinal direction of the said window panel, and a second antenna strip in which a bent portion is formed connected to the first antenna strip of the feeding part so as to extend along the first antenna strip.

Antenna device for an automobile

A pair of antenna elements are mounted on a glass of a rear quarter window of a vehicle. Feed points of these elements are provided at a corner portion of the window. One antenna element extends clockwise about the center of the window glass and the other antenna element extends counterclockwise thereabout from their corresponding feed points. The characteristics of both antenna elements significantly differ and complement each other. It is convenient for a diversity reception system. An auxiliary element branches from one antenna element to extend along the other antenna element. The auxiliary element compensates for impedance characteristics of the antenna elements to tune up reception characteristics thereof.

Window antenna for a vehicle with dual feed points

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Toyota, Japan

Hiroshi Yotsuya