Electronic price label antenna for electronic price labels of different sizes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 6, 2001
Grant Date -
N/A
app pub date -
Feb 17, 1999
filing date -
Feb 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic price label which is suitable for use in both small EPLs having lengths of about 1.5 to 2 inches and large size EPLs having lengths of about 3 to 4 inches. The antenna includes a folded planar conductor including a generally planar radiator portion coupled to a antenna port on a printed circuit board, a generally planar ground plane portion coupled to a ground on the printed circuit board having a width and oriented generally parallel to the radiator portion, and a dielectric layer between the radiator portion and the ground plane portion. The width of the ground plane portion is larger than the width of the radiator portion by a distance sufficient to produce an electric field which is linearly polarized in the width direction, thereby eliminating a need for shielding.
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Cited Art Landscape
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