Mitsubishi Electric Corporation

Hidetoshi Makimura

Toru Fukasawa

Kazunori Takahashi

Takashi Yanagi

Yasuhiro Nishioka

Kengo Nishimoto

Kiyotaka Suzuki

Kazuya Hojo

The present invention provides an antenna device including a ground conductor platehaving a first circular hole, a disc-shaped conductor platewhich has a second circular holewhose center is disposed on a straight line passing through a center of the first holeand orthogonal to the ground conductor plate, has a center that coincides with the center of the second hole, and is disposed substantially parallel to the ground conductor plate, a first linear conductorhaving a first end passing through the first hole and a second end passing through the second hole, a second linear conductorhaving a first end connected to the second end of the first conductor and disposed substantially parallel to the ground conductor plate, and an antenna elementconnected to a second end of the second conductor.

Array antenna device

The present invention is characterized by an antenna device including: a circuit board; a circuit pattern formed by a conductor on a surface of the circuit board; and a minute loop antenna mounted on the circuit board and formed in a loop shape by a conductor having two end portions, wherein the circuit pattern includes at least a feeder circuit configured to supply power to the minute loop antenna, and a ground, and the minute loop antenna is mounted on the circuit board such that: the conductor having the two end portions is connected at one end thereof to the feeder circuit and connected at another end thereof to the ground; a loop surface of the conductor having the two end portions is perpendicular to a plane on which the circuit pattern is formed; and a normal line passing through the loop surface does not pass through the circuit pattern.

Antenna device and antenna manufacturing method

Antenna element

Growing community of inventors

Tokyo, Japan

Hidetoshi Makimura