Signal-amplification frequency-conversion apparatus having a com

Details Signal-amplification frequency-conversion apparatus having a com Signal-amplification frequency-conversion apparatus having a com

1980-02-06

1982-01-26

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455 20, 455118, 330 45, H04B 126

Patent

active

043132235

ABSTRACT:
A frequency-conversion apparatus including, among others, a single active component in common use for signal amplification and local oscillation with its operating point selected in its linear region, but not in its saturation region. With this device, there is no need for any special components conventionally used in this type of apparatus, such as a nonlinear circuit for controlling oscillation output and an extraction circuit for feeding the local-oscillation signal to the frequency mixer as conventionally arranged outside of the oscillation loop.

REFERENCES:
patent: 3334299 (1967-08-01), Holzwarth
patent: 3341783 (1967-09-01), Roulston
patent: 3663886 (1972-05-01), Blume
patent: 4092617 (1978-05-01), Titus
Kawahashi et al., "Solid-State 4 GHZ 1200-Channel System", IEEE International Communications Conference, Philadelphia, Jun. 1966.

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