Antenna device for electronic product anti-theft systems

Communications: radio wave antennas – Antennas – Loop type

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Details

343866, 343742, 340572, H01Q 704

Patent

active

055858112

ABSTRACT:
The antenna device has an antenna wire (1), a screening plate (2) and a casing receiving the antenna wire (1) and the screening plate. (2) and which is assembled from a front part (3) and a rear part (4). The two casing parts (3,4) together with the screening plate (2) form a sandwich structure on parts of their surface (sandwich surfaces (5,6,7)). The antenna wire (1) is positioned in a angle V-shaped portion (8) of the front casing part (3).

REFERENCES:
patent: 4872018 (1989-10-01), Feltz et al.
patent: 5239284 (1993-08-01), Hara et al.

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