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A monolithic GaAs diode sampling head with 275 GHz ( −3dB) bandwidth gated by a nonlinear-transmission-line (NLTL) strobe pulse generator and fabricated using three masks at 3 μm resolution is reported. The sampling circuit step response, measured using a second NLTL as a testsignal, showed a l.9 ps (10–90%) convolved falltime and 24% peak to peak ringing.
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Yu et al. (1990) studied this question.
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