Communications: radio wave antennas – Antennas – With radio cabinet
Patent
1999-08-26
2000-08-08
Wong, Don
Communications: radio wave antennas
Antennas
With radio cabinet
343701, 343846, H01Q 124
Patent
active
061008508
ABSTRACT:
An electronic price label antenna which is separate from a printed circuit board and which requires only two solder points to connect it to the printed circuit board area. The antenna is a folded metal conductor of the Inverted-F antenna type and includes a ground plane portion separate from the printed circuit board, a radiator portion of lesser width than the ground plan portion, a first side portion on a first side of the ground plane portion which joins the ground plane portion and the radiator portion at a first end of the ground plane portion to form a closed end of the radiator portion, a second side portion on a second side of the ground plane portion which shields the antenna from a display in the electronic price label, a third side portion on a third side at a second end of the ground plane portion which forms an electric field polarization generally oriented along the length of the ground plane portion, a first conductive strip which electrically couples the ground plane portion to a printed circuit board within the electronic price label through a first solder point, and a second conductive strip which electrically couples the radiator portion to the printed circuit board at a second solder point to form an antenna port.
REFERENCES:
patent: 4002886 (1977-01-01), Sundelin
patent: 4500880 (1985-02-01), Gomersall et al.
patent: 4924363 (1990-05-01), Kornelson
patent: 5172314 (1992-12-01), Poland et al.
patent: 5394159 (1995-02-01), Schneider et al.
patent: 5448226 (1995-09-01), Failing, Jr. et al.
patent: 5598169 (1997-01-01), Drabeck et al.
patent: 5668560 (1997-09-01), Evans et al.
patent: 5794211 (1998-08-01), Goodwin, III et al.
Chen Shih-Chao
Martin Paul W.
NCR Corporation
Wong Don
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