Communications: directive radio wave systems and devices (e.g. – Radar transponder system – Unique identity
Patent
1989-12-05
1992-11-17
Gregory, Bernarr E.
Communications: directive radio wave systems and devices (e.g.,
Radar transponder system
Unique identity
342 45, 342 50, 342 51, 340505, 34082554, 340933, 340935, 340988, 235384, G01S 1374, G01S 1380
Patent
active
051647320
ABSTRACT:
An antenna system for mounting in a roadway comprised of an electrically lossy material. The antenna system has a reflector trough shield filled with a solid dielectric. An antenna, preferably comprised of coaxial cable, is positioned in the reflector trough, which prevents electromagnetic waves radiated by the antenna from being lost into the roadway.
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Report entitled, "Heavy Vehicle Electronic License Plate Program-AVI Test Program-Interim Report and Recommendations" by Castle Rock Consultants.
Report entitled, "Heavy Vehicle Electronic License Plate (HELP) Program-Automatic Vehicle Identification (AVI) Research and Development Project Final Report", dated Mar. 1990 by Castle Rock Consultants.
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Brockelsby William K.
Gillis Donald P.
Hryciuk Michael L.
Walker Conrad M. B.
EID Electronic Identification Systems Ltd.
Gregory Bernarr E.
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