Yokowo Co., Ltd.

Bunpei Hara

Takayuki Sone

Kazuhiro Kowaita

Takashi Kaneko

A composite antenna device includes a first antenna, plural second antennas whose used frequency bands are different from a used frequency band of the first antenna, and a first conductor portion to serve as a ground plane of the first antenna and the second antennas. Each of the plural second antennas may have a second conductor portion. The first antenna may be provided on the first conductor portion, and at least a portion of the first conductor portion may be positioned between the second conductor portions.

Composite antenna device

An antenna device for vehicle (A) includes an antenna base (), an antenna case () forming an accommodation space together with the antenna base (), a first monopole antenna () accommodated in the accommodation space, and a first parasitic element () provided above the first monopole antenna ().

Antenna device for vehicle

An antenna () includes a ground plate () and a radiating element () that has a shape expanding in a predetermined expansion direction and a self-similar shape with respect to an end portion () connected to a feeding line () that is a feeding portion. The radiating element () is arranged in a standing state relative to the end portion () so as to face the end portion () toward the ground plate (). In addition, the radiating element () has a first radiating element portion () and a second radiating element portion () that are plane-symmetric to each other across a predetermined virtual symmetric plane (A) along the expansion direction, and thereby forms a shape expanded in the expansion direction.

Antenna, antenna device, and antenna device for vehicle

A patch antenna is provided with an antenna main body including a radiating element on an upper surface of a dielectric body; and a parasitic element disposed at a predetermined distance from the radiating element. The parasitic element is a metal material having an upward convex shape as a whole and including a planar portion which is parallel to the upper surface of the radiating element and two bent portions which are inclined portions inclined from both ends of the planar portion toward the radiating element. While the parasitic element has a three-dimensional shape as a whole, the parasitic element has a planar-view area wider than a planar-view area of the radiating element in a planar view as seen from the first surface side of the dielectric body, and is provided in a position apart from the radiating element and to cover the radiating element.

Growing community of inventors

Tomioka, Japan

Bunpei Hara