Frequency domain measurement of baseband instrumentation

Nahman, N. S.; Jickling, R.M.

doi:10.6028/nbs.ir.73-330

Cited by 3 publications

(4 citation statements)

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“…Based upon risetime measurements the -3 dB bandwidth of the sampling gate is of the order of 18 GHz. Frequency domain measurements on similar samplers tend to confirm this value [32,33,34]. Thus at 6 GHz an error of 0.33 dB would be contributed.…”

Section: ± 4%mentioning

confidence: 69%

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Spectrum amplitude :

Andrews¹

1977

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This technical note is a detailed discussion of the electromagnetic quantity, spectrum amplitude, which is used to characterize broadband signals and noise. The definition of spectrum amplitude is presented in detail. Several practical means of generating electrical signals with broadband spectrum amplitudes are included. Various techniques for the measurement of spectrum amplitude are described along with experimental comparisons. The NBS measurement service for the calibration of impulse generator spectrum amplitude is described along with an error analysis.

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Section: ± 4%mentioning

confidence: 69%

“…The vertical linearity is quite good (< ± 1%) over the normal range of operation. The major nonlinearity is severe signal compression for amplitudes greater than + 0.7 V [32].…”

Section: Sampling Oscilloscope Errorsmentioning

confidence: 99%

Spectrum amplitude :

Andrews¹

1977

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“…However, fre quency-domain impedance measurements [12] that were done on the same particular sampler were used to provide an equation relating Lj to other model component values.…”

Section: Sampling Diodesmentioning

confidence: 99%

Modeling of the HP-1430A feedthrough wide-band (28-ps) sampling head

Riad

1982

IEEE Trans. Instrum. Meas.

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The theory and construction of the HP-1430A feedthrough sampling head are reviewed, and a model for the sampling head is developed from dimensional and electrical measurements in con junction with electromagnetic, electronic, and network theory. The model was used to predict the sampling-head step response needed for the deconvolution of true input waveforms. The dependence of the sampling-head step response on the sampling diode bias is investigated. Calculations based on the model predict step response transition du rations of 27.5 to 30.5 ps for diode reverse bias values of -1.76 to -1.63 V.

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“…(6.27) can then be calculated using [36] •n For the order of magnitudes involved in the present TDR measurement, computations showed that the effect of diode inductance on the voltage drop-peaks is minor; i.e., such measurements are not able to yield the value L^. However, previous measurements [37] that were done on the same particular sampler gave a complex value 14 + j5 ohms at 10 Griz for the impedance Z^/2 of the sampling gate with a diode biasing forward current of 5 ma.…”

Section: Biconical Cavitymentioning

confidence: 99%