Wave transmission lines and networks – Negative resistance or reactance networks of the active type – Simulating specific type of reactance
Patent
1989-03-29
1990-10-16
Gensler, Paul
Wave transmission lines and networks
Negative resistance or reactance networks of the active type
Simulating specific type of reactance
333216, 333217, H03H 1148
Patent
active
049638459
ABSTRACT:
A monodirectional, current-reducing impedance magnifier (MCRIM) provides continuously variable magnification of any general impedance Z.sub.0 without affecting its phase charateristics. The monodirectional, current-reducing impedance magnifier circuit realizes floating resistors, inductors and capacitors, suitable for use over any range of frequencies, and the simulated impedance is continuously user-variable over wide ranges. In another embodiment, a monodirectional, generalized impedance synthesizer (MGIS) permits simulation of user-variable floating impedances whose phase and frequency characteristics are widely subject to design objectives. In addition to realizing all conventional circuit elements R, L and C, including positive and negative values thereof, the MGIS produces an infinite set of alternatives for the simulation of user-variable resistance and reactance functions of frequency. The MGIS is also usable over any bandwidth.
REFERENCES:
patent: 3735288 (1973-05-01), Strauss
patent: 4025867 (1977-05-01), Seidel
patent: 4779056 (1988-10-01), Moore et al.
Simulated Inductance for Low Frequency Filter, Electronic Engineering, Nov. 1976, p. 19.
Pookaigaudom et al., An Integratable Precision Current-Controlled Negative Impedance Converter, Proc. of IEEE, Jun. 1978, pp. 706-708.
Gensler Paul
Shaffer Nevin
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