Wave transmission lines and networks – Negative resistance or reactance networks of the active type – Simulating specific type of reactance
Patent
1998-05-26
2000-09-05
Bettendorf, Justin P.
Wave transmission lines and networks
Negative resistance or reactance networks of the active type
Simulating specific type of reactance
333217, 327285, 327553, 331115, H03H 1152
Patent
active
061149306
ABSTRACT:
An impedance device has a first conductor and a second conductor, the first and second conductors being positioned in relation to each other so as to provide magnetic coupling between them. The impedance of the impedance device is controlled by receiving, in the first conductor, a first electric signal having a first amplitude and a first phase angle, generating a second electric signal having a second amplitude and a second phase angle, delivering the second electric signal to the second conductor, and controlling the second phase angle.
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Nguyen, Nhat M. et al., "Si IC-Compatible Inductors and LC Passive Filters", IEEE, Journal of Solid States Circuits, vol. 25, No. 4, p1028-1033, Aug. 1990.
Presser, A., "Varactor-Tunable, High-Q Microwave Filter", RCA Review, vol. 42, pp691-705, 1981.
Gobbi Jose-Maria
Johansson Ted
Bettendorf Justin P.
Telefonaktiebolaget LM Ericsson
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