Title :
Microwave automatic vehicle identification(AVI) system
Author :
Sakuragi, J. ; Kimura, Y. ; Kameda, K. ; Kamata, S.
Author_Institution :
Toshiba Corporation, Kawasaki, Japan
Abstract :
A new microwave AVI system has been developed that is characterized by the fact that it utilizes ceramic resonators in the composition of a transponder identification code, and a single microwave carrier to convey an interrogation signal to, and a response signal from, that transponder. In this system, the transponder is a completely passive device that requires neither a battery nor any other power supply, and is of a compact, light-weight and slim construction. This paper describes the system structure, the operational principles of the interrogator and transponder, and the transponder circuit structure.
Keywords :
Automotive engineering; Batteries; Ceramics; Containers; Magnetic resonance; Microwave devices; Power supplies; Resonant frequency; Transponders; Vehicles;
Conference_Titel :
Vehicular Technology Conference, 1979. 29th IEEE
DOI :
10.1109/VTC.1979.1622667
