Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1998-05-18
2000-05-09
Ton, My-Trang Nu
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
G11C 2702
Patent
active
06060915&
ABSTRACT:
A wideband sample-hold circuit is formed with a single diode in a minimum component configuration. A gate circuit comprised of a first capacitor and an impedance element forms a gate pulse, stores the sampled signal charge on the first capacitor, and transfers the charge to a second capacitor via the impedance element. The impedance element also defines the gate pulse width, in combination with the first capacitor. In a preferred mode, the first capacitor is responsive to individual gate pulses while the larger second capacitor integrates charge packets from the first capacitor due to multiple gate pulses to provide an integrated baseband output. In radar rangefinder applications, the baseband output is an equivalent time replica of the RF input. The sample-hold circuit has other applications in radar motion sensing and time domain reflectomitry.
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