Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1984-12-03
1987-08-04
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307271, 3072191, 328156, 328 15, 328160, H03D 1300, H03K 906
Patent
active
046848339
ABSTRACT:
In a mixer stage comprising a transistor for mixing, with the input signal and/or the oscillator signal being fed inductively to the mixing transistor, there is provided for inductively coupling the mixer transistor to the corresponding filter a coil which is magnetically coupled to this filter. The inductivity of the coupling coil is of such dimensions that the source impedance controlling the transistor to a greater than the input impedance of the mixer transistor when the filter is aligned.
REFERENCES:
patent: 3158752 (1964-11-01), Strief
patent: 3177378 (1965-04-01), Pulfer et al.
patent: 4317230 (1982-02-01), Boubouleix
patent: 4519096 (1985-05-01), Cerny, Jr.
"Diodenabstimnlung in Rundfunk-und Fernsehempfangern", Electronik-Anzeiger, No. 12, vol. 26, 1969.
Funk-Technik (Radio Engineering), 1964, No. 16, pp. 574-576, "Aufuartgeregelte Mischstufe mit Transistoren".
Miller Stanley D.
Roseen Richard
Telefunken electronic GmbH
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