Wave transmission lines and networks – Negative resistance or reactance networks of the active type
Patent
1979-06-08
1980-12-30
Gensler, Paul L.
Wave transmission lines and networks
Negative resistance or reactance networks of the active type
307229, H03H 1146, H03H 1154
Patent
active
042426561
ABSTRACT:
A two-terminal active network which simulates a low noise-temperature resistor is disclosed. In a preferred embodiment, a pair of operational amplifiers, each connected in the manner of a "current pump," comprises the active elements of the network. A resistive voltage divider network provides both positive and negative feedback to the operational amplifiers. Simulated resistors can be obtained with a wide range of equivalent resistance values and effective noise temperatures.
REFERENCES:
patent: 3493901 (1970-02-01), Deboo
Forward Robert L.
Sipma Dale M.
Benman, Jr. William J.
Gensler Paul L.
Hughes Aircraft Company
MacAllister W. H.
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