Low noise converter

Details Low noise converter Low noise converter

1988-07-25

1990-09-04

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455189, 455343, H04B 1116, H04B 116

Patent

active

049550764

ABSTRACT:
A two-band low noise frequency converter coupled, for example, to RF signals from a satellite and receiving at least two frequency bands therefrom including relay switch means for switching from one frequency band to another and control means which is responsive to the low level of a bi-level power-supply voltage being fed through an IF output terminal to operate the switch means. This reduces the power consumption and the heat generated thereby.

REFERENCES:
patent: 3755743 (1973-08-01), McLernon
patent: 3924192 (1975-12-01), George
patent: 4180804 (1979-12-01), Watanabe et al.
patent: 4476439 (1984-10-01), Sato
patent: 4672687 (1987-06-01), Horton et al.
"A Solid-State Relay For Transformer Switching", Jamil-Asghar et al., Int'l. Journal of Electronics 61 (1986) Oct., No. 4, London, Great-Britian, pp. 539-542.

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