Transponder for electromagnetic detection system with non-linear

Details Transponder for electromagnetic detection system with non-linear Transponder for electromagnetic detection system with non-linear

1983-12-06

1986-02-25

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307271, 3072191, 307494, 340572, H01J 1982, H05K 104

Patent

active

045729760

ABSTRACT:
A detection wafer with a non-linear circuit for an electromagnetic detection system wherein two different transmission frequencies are used, comprising a resonant circuit connected to a non-linear element forming from the transmission frequencies, a third frequency to be detected. The non-linear element forms part of an amplifying semiconductor circuit connected to a supply battery and having an input circuit coupled to the resonant circuit, and an output circuit comprising a coil magnetically coupled to the coil of the resonant circuit, the resonant frequency bandwidth of the resonant circuit comprising both transmission frequencies and the frequency to be detected.

REFERENCES:
patent: 4021705 (1977-05-01), Lichtblau
patent: 4274083 (1981-06-01), Tomoeda
patent: 4274089 (1981-06-01), Giles
patent: 4308530 (1981-12-01), Kip et al.
patent: 4481428 (1984-11-01), Charlot, Jr.

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