Antenna device for vehicles and vehicle antenna system and communication system using the antenna device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMasahiro Ohara, Akio Miyajima, Tsutomu Maeda, Takefumi Inoue
Life of this patent
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Abstract
An antenna device for installation on vehicles, which antenna device including a core made of a magnetic material, a holding portion provided by a dielectric film sheet wound around the core, a coil formed with a linear conductor wound around the holding portion, a case made of a dielectric resin material for housing the core, the holding portion and the coil, and a flexible dielectric resin filling the space within the case excluding the core, the holding portion and the coil.
Claims9
An antenna device for installation on vehicles for receiving electromagnetic waves airing between the vehicle and the outside comprising
- a core made of a magnetic material,
- a coil formed with a linear conductor wound around the core,
- a case made of a dielectric resin material for housing the core and the coil, and
- a dielectric resin filling the space within the case excluding the core and the coil.
A communication system comprising
- a vehicle antenna device for transmitting electromagnetic waves to the outside of vehicles or receiving electromagnetic waves coming from outside the vehicle, which antenna device comprising
- a core made of a magnetic material,
- a coil formed with a linear conductor wound around the core,
- a case made of a dielectric resin material for housing the core and the coil, and
- a dielectric resin filling the space within the case excluding the core and the coil;
- wherein
- the vehicle antenna device is disposed within a vehicle mirror at a location close to the vehicle mirror's installation premises which is used for installing the mirror on a vehicle body.
A vehicle antenna system comprising
- a vehicle antenna device which is comprising at least a core made of a magnetic material and a coil wound around the outer surface of the core;
- wherein
- the antenna device is housed within a fixing portion which has been provided for installing a vehicle mirror on a vehicle body.
A communication system for conducting communication with a third party via a vehicle antenna system which contains a vehicle antenna device formed of at least a core made of a magnetic material and a coil wound around the core;
- wherein the vehicle antenna device is housed within a fixing portion which has been provided for installing a vehicle mirror on a vehicle body.
Dependencies are inferred from the claim text.