Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Kazuya Nakano

Kenji Nishikawa

Kazuya Tani

Yasuharu Matsuoka

Ryo Yonezawa

Kazuhiro Shiraga

Toshiharu Ishimura

Keita Endo

Shintarou Tanaka

Kazuki Zusho

Hiroyuki Takaoka

Kouji Watanabe

Katsuya Yamamoto

Hiroki Yosho

An antenna device includes a dielectric substrate having a first main surface and a second main surface, a feedpoint provided at a predetermined position of the dielectric substrate, a first radiating element provided on the first main surface and extending from the feedpoint in a predetermined direction, an interlayer connection conductor connected to the first radiating element, a second radiating element provided on the second main surface and extending from the interlayer connection conductor in the predetermined direction, and a third radiating element extending from the feedpoint in the predetermined direction on a path different from a path of the first radiating element. The first radiating element has a U-shaped part that turns away from the feedpoint in a predetermined direction and then turns back and approaches the feedpoint. The third radiating element has a meander-shaped part that meanders by repeatedly approaching and going away from the first radiating element in the plan view.

Antenna device

An electronic apparatus includes: a first antenna board having a plate shape and extending with a first length; a second antenna board having a plate shape and extending with a second length; and a rectangular parallelepiped upper casing for accommodating the first antenna board and the second antenna board. The first antenna board and the second antenna board are arranged such that a longitudinal direction of the first antenna board and a longitudinal direction of the second antenna board are parallel to one side of one main surface of the rectangular parallelepiped upper casing. The first antenna board and the second antenna board are arranged parallel to each other.

Electronic apparatus

The electronic device includes a case, an antenna element, a heat source, a heat dissipation member, a heat conduction member, a cooling fan, an exhaust port, and an exhaust duct. The case has a pair of main surfaces and side surfaces. The antenna element is used to perform wireless communication. The heat dissipation member exchanges heat with a cooling wind. The heat conduction member conducts heat of the heat source to the heat dissipation member. The cooling fan generates the cooling wind to be blown to the heat dissipation member. The exhaust port is an exhaust port from which the cooling wind is discharged to the outside. The exhaust duct guides the cooling wind to the exhaust port. The exhaust port is disposed on one of the side surfaces, and the antenna element and the exhaust duct are disposed to overlap each other at least partially in the thickness direction.

Electronic device

An antenna apparatus is provided with a dielectric substrate, a feed point, a first radiation conductor, a second radiation conductor, and a through-hole conductor. The first radiation element is capacitively coupled to the second radiation element in a portion where the first and second radiation conductors overlaps with each other via the dielectric substrate. At least one of the first and second radiation elements has a meander portion formed in the portion where the first and second radiation elements are capacitively coupled to each other, and an LC resonator is formed of the meander portion, and the portion where the first and second radiation elements are capacitively coupled to each other.

Small antenna apparatus operable in multiple frequency bands

A first base radiation element has a first end connected to the feed point, and a second end. A second base radiation element has a first end connected to the ground point, and a second end. The first and second base radiation elements respectively include portions extending in a first direction and close to each other. The first base radiation element is branched into first and second branch radiation elements at a first branch point located at the second end of the first base radiation element, the first branch radiation element includes a portion extending in the first direction, and the second branch radiation element includes a portion extending in a second direction opposite to the first direction. The end of the second base radiation element is connected to a connecting point different from the first branch point of the first branch radiation element.

A GPS antenna is provided with a reflective conductor portion. Thereby, an electromagnetic wave radiated from an antenna conductor portion in a predetermined direction can be grounded electrically, and thus radiation of the electromagnetic wave in a direction (arbitrary direction) opposite to the predetermined direction can be enhanced. As a result, the directivity of the electromagnetic wave in the arbitrary direction can be enhanced to improve the positioning accuracy.

Growing community of inventors

Osaka, Japan

Kazuya Nakano