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This paper proposes a high resolution wideband calibration procedure for RF time-domain measurement of nonlinear devices. This calibration is based on the use of wideband multi-sine signal and is applied to a 4 channel Track and Hold Amplifier (THA) based measurement setup. The absolute magnitude and phase calibration is performed with a calibrated coherent interleaving sampling oscilloscope as reference...
We propose in this paper a time-domain test bench for the pulsed characterization of a high Power GaN Amplifier. Our findings are based on a Track and Hold Amplifier for the down-conversion of RF spectra using the sub harmonic sampling principle. The use of wideband THA to replace samplers or mixers enables reducing component density in an analog domain. It permits direct digitization of entire pulsed...
This paper presents a novel pulsed I/V measurement methodology applied to HBTs characterization using very narrow 40 ns pulse widths. The measurement procedure consists in applying pulsed collector emitter voltages while driving the transistor base with constant DC currents. The proposed measurement technique is applied here to the characterization and electro-thermal modeling of InGaAs/InP DHBTs...
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