Antenna apparatus

Details Antenna apparatus Antenna apparatus

1997-11-03

1999-10-26

Wimer, Michael C.

Communications: radio wave antennas

Antennas

High frequency type loops

343744, H01Q 1114

Patent

active

059736500

ABSTRACT:
An antenna apparatus is disclosed which comprises: a printed circuit board; a first loop antenna, arranged along one side of the printed circuit board, wound more than one turn; a second loop antenna, arranged along the side, wound less than one turn, one end of the first loop antenna and one end of the second loop antenna being fixed to a first area on the printed circuit board near the side; and a capacitor, fixed to a second area of the printed circuit board remote from the first area near the side, having one end connected to another end of the first loop antenna and another end connected to another end of the second loop antenna. In the antenna apparatus, the first and second loop antennas may comprise conductive rods. In the antenna apparatus, the first and second loop antennas may comprise stripe conductive plates. In the antenna apparatus, the first area and second area are remote with a distance from 5 mm to 15 mm, or a distance more than 15 mm to 30 mm, favorably, or a distance more than 30, most favorably.

REFERENCES:
patent: 4947180 (1990-08-01), Schotz

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