A microwave system using the second-harmonic reflection principle is used as a basis for automobile labeling system. This system is capable of accommodating over 100 million different codes and can identify a vehicle passing at full speed from distances up to ten feet. Tolerances required for the interrogator-responder distance and orientation are quite loose. The experimental microwave system described here uses a label 6 X 3 X 7/8 inches (15.2 X 7.6 X 2.2 cm), and it is expected this size could be reduced further. Systems operation and circuit design are described, and other possible applications for such a system are discussed.


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    Title :

    A microwave automatic vehicle identification system


    Additional title:

    Mikrowellensystem fuer automatische Fahrzeugerkennung


    Contributors:
    Klensch, R.J. (author) / Rosen, J. (author) / Staras, H. (author)

    Published in:

    RCA Review ; 34 , 4 ; 566-579


    Publication date :

    1973


    Size :

    14 Seiten, 11 Bilder, 4 Quellen


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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