Demodulators – Phase modulation demodulator
Patent
1988-10-26
1989-12-19
Laroche, Eugene R.
Demodulators
Phase modulation demodulator
328134, H03D 100
Patent
active
048885584
ABSTRACT:
A low noise floor phase detector is designed with a transmission line coupler to take advantage of the low noise characteristics of such couplers and their improved operational characteristics relative to a transformer. The preferred detector circuitry also utilizes amplitude detectors that include signal terminating means to operate the diodes at a conduction angle for maximum signal to noise ratio and effective impedance matching between the circuit components.
REFERENCES:
patent: 2919404 (1959-12-01), Rock, Jr.
Bethurum William J.
Hewlett--Packard Company
LaRoche Eugene R.
Pascal Robert J.
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