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A new concept for the design of power combiners based on matched directional filters is presented. The directional filters consist of individual balanced sections composed of hybrids and single resonators. Each of the sections corresponds to a pole of an all-pass function composed of the sum of S11 and S12 of the desired filter transfer function. A simple synthesis method is presented. The filter...
This article presents a voltage-mode multi-function filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, current controlled differential voltage current conveyors (CCDVCCs). The features of the circuit are that: the quality factor and pole frequency can be tuned independently via the input bias currents: the circuit description is very...
This article presents a current-mode universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based-on dual-output current controlled current conveyor (DO-CCCII). The features of the circuit are that: the quality factor and pole frequency can be tuned orthogonally via the input bias currents: the circuit description...
This article presents a dual-mode (voltage-mode and current-mode) universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on plus type dual-output current controlled current conveyor transconductance amplifier (CCCCTA). The features of the circuit are that: the quality factor and natural frequency can be tuned...
In this paper a 2-inertia control system is proposed on an original point of view of the minimum-phase state. The anti-resonant and resonant characteristics of 2-inertia system resolved into the tandem model of extended minimum-phase and extended all-pass functions. The feedback control on the extended minimum-phase state is able to compensate the perturbation of the torsional vibrations and the disturbance...
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