Dual conversion reflex receiver

Details Dual conversion reflex receiver Dual conversion reflex receiver

1990-09-17

1993-04-20

Kuntz, Curtis

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455316, 455207, H04B 1500

Patent

active

052049833

ABSTRACT:
Both the low and high intermediate frequencies (IF) are amplified simultaneously in a single IF amplifier strip. For proper operation it is required that the two IFs be sufficiently isolated from each other so that independent tuning can be achieved. In operation, the RF signal is amplified and mixed down by a first local oscillator (LO). The RF signal is amplified in the IF strip to obtain IF #1. IF #1 from the strip is mixed down with a second LO in a feedback arrangement to obtain IF #2 simultaneously with IF #1 from the strip.

REFERENCES:
patent: 3311832 (1967-03-01), Schrader
patent: 3345573 (1967-10-01), Eschbaugh
patent: 3462554 (1969-08-01), Steel
patent: 3544899 (1970-12-01), Gusyatinsky et al.
patent: 3769611 (1973-10-01), Scaggs
patent: 4584715 (1986-04-01), Baars et al.
patent: 4896374 (1990-01-01), Waugh et al.
patent: 5027084 (1991-06-01), Tsukii

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