Antenna device
AssigneeMurata Manufacturing Co., Ltd.
InventorsKENGO ONAKA, Hiroya Tanaka
Life of this patent
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Abstract
A substrate includes a dielectric plate and a conductive layer formed on both surfaces of the dielectric plate, and a first cutout is formed in the conductive layer on both surfaces of the substrate so as to extend inward from part of a first edge of the substrate. A first radiation electrode is connected to the conductive layer at a first point located on an outer peripheral line of the first cutout. A first reflector plate is disposed in a location further inward in the substrate from the first edge than the first point. The reflector plate is electrically connected to the conductive layer, and faces toward the first point. Thus an antenna device that is suited to miniaturization and that is capable of increasing directivity is provided.
Claims20
An antenna device comprising:
- a substrate including a dielectric plate and conductive layers disposed on opposing surfaces of the dielectric plate;
- a first cutout in the conductive layers on the opposing surfaces of the dielectric plate substrate, the first cutout extending inward from a first edge of the substrate;
- a first radiation electrode electrically connected to the conductive layers at a first connection point disposed in the first cutout;
- and
- a first conductive reflector plate disposed on the substrate and facing the first connection point, the first conductive reflector plate being electrically connected to the conductive layer.
An antenna device comprising:
- a substrate including a dielectric plate and conductive layers disposed on opposing surfaces of the dielectric plate;
- a first cutout in the conductive layers on the opposing surfaces of the dielectric plate substrate, the first cutout extending inward from a first edge of the substrate;
- a first radiation electrode electrically connected to the conductive layers at a first connection point disposed in the first cutout;
- a first conductive reflector plate disposed on the substrate and facing the first connection point, the first conductive reflector plate being electrically connected to the conductive layer;
- a second cutout in the conductive layers that extends inward from at least one second edge of the substrate;
- a second radiation electrode electrically connected to the conductive layers at a second connection point disposed in the second cutout;
- and
- a second reflector plate disposed on the substrate and facing the second connection point, the second reflector plate electrically connected to the conductive layer.
Dependencies are inferred from the claim text.