Wave transmission lines and networks – Negative resistance or reactance networks of the active type – Simulating specific type of reactance
Patent
1985-06-03
1987-01-20
Gensler, Paul
Wave transmission lines and networks
Negative resistance or reactance networks of the active type
Simulating specific type of reactance
307494, 333216, H03H 748
Patent
active
046382658
ABSTRACT:
A variable reactance, the value of which is controllable, is produced between a pair of terminals of a variable reactance circuit comprising a pair of current steering circuits. First and second reactive components are coupled respectively between the pair of terminals and the first and second current steering circuits to produce first and second antiphase reactive currents'. The first reactive current is split by the first current steering circuit into first and second antiphased proportional currents. Likewise, the second reactive current is split by the second current steering circuit into third and fourth antiphased proportional currents with said first and third currents being antiphased with respect to each other. The first reactive current is summed at a first one of the pair of terminals with said first and third currents while the second reactive current is summed at the second one of the pair of terminals with said second and fourth currents to produce the variable reactance across the terminals.
REFERENCES:
patent: 4258274 (1981-03-01), Nagashima et al.
Lunn Gerald K.
Main W. Eric
McGinn Michael
Bingham Michael D.
Gensler Paul
Motorola Inc.
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