Radio frequency regenerators

Details Radio frequency regenerators Radio frequency regenerators

1978-03-07

1981-01-13

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

455 20, 455263, 455313, H04B 126

Patent

active

042453542

ABSTRACT:
In a radar or radio frequency signal regenerator an incoming RF signal is mixed with the output of a single-side-band generator to produce a derived IF signal. The single-side-band generator operates to mix together the outputs of two local oscillators to provide the signal mixed with the incoming RF signal. A frequency lock loop circuit is used to compare the frequency of the derived IF signal with a reference IF frequency and the frequency of one of the local oscillators is varied to correct any frequency error and thus to make the frequency of that local oscillator equal to the incoming RF frequency.

REFERENCES:
patent: 2270023 (1942-01-01), Ramsay et al.
patent: 3460040 (1969-08-01), Jacob
patent: 4083014 (1978-04-01), Guest
patent: 4092602 (1978-05-01), Nishioka et al.

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