RFID conveyor antenna

Details RFID conveyor antenna RFID conveyor antenna

1997-10-20

1999-07-27

Lee, Benjamin C.

Communications: electrical

Condition responsive indicating system

Specific condition

3405721, 343720, 343764, 343765, 343766, 343866, G08B 1314

Patent

active

059297603

ABSTRACT:
An RFID antenna system is described comprising an elongated antenna disposed proximate an interrogation path for interrogating transponders moving along the interrogation path. The antenna is oriented such that the longitudinal axis of the antenna is substantially perpendicular to said interrogation path. The antenna provides an active RF interrogation zone that intersects at least 40% of the horizontal longitudinal plane of the interrogation path.

REFERENCES:
patent: 3720940 (1973-03-01), Fox et al.
patent: 3832530 (1974-08-01), Reitboeck et al.
patent: 5012236 (1991-04-01), Troyk et al.
patent: 5221831 (1993-06-01), Geiszler
patent: 5274392 (1993-12-01), D'Hont
patent: 5305002 (1994-04-01), Holodak
patent: 5406263 (1995-04-01), Tuttle
patent: 5565846 (1996-10-01), Geiszler et al.
patent: 5589819 (1996-12-01), Takeda
patent: 5593713 (1997-01-01), De La Luz-Martinez et al.

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