Down converter for satellite communication system

Details Down converter for satellite communication system Down converter for satellite communication system

1991-11-05

1993-04-20

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455131, 455338, H04B 126

Patent

active

052049841

ABSTRACT:
A down converter device is disclosed which is used in a satellite communication system to convert a microwave signal to an intermediate frequency signal by the use of a standard signal having a frequency range of several to several tens of MHz, and to apply the intermediate frequency signal to a next stage component. The down converter includes a mixer for producing the intermediate frequency signal indicative of a frequency difference between the standard signal and the microwave signal. A separator is provided which includes a first terminal for receiving the intermediate frequency signal, a second terminal for producing and supplying the intermediate frequency signal to the next stage component and for receiving the standard signal from the next stage component, a first filter for separating the standard signal, and a third terminal for producing the standard signal to the mixing means.

REFERENCES:
Tsushin Kougaku Hando Bukku (Handbook for Electrical Communication Engineers) pp. 581-587; Jul. 1957, Maruzen Co. Ltd.

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