A compact millimeter-wave comb generator for calibrating broadband vector receivers

Hale, Paul D.; Remley, Kate A.; Williams, Dylan F.; Jargon, Jeffrey A.; Wang, C. M. Jack

doi:10.1109/arftg.2015.7162894

Cited by 7 publications

(2 citation statements)

References 19 publications

(26 reference statements)

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“…Other Jacobian matrices have the same numerator as equation ( 6) and are found by replacing only the denominator with their partial derivatives. Figure 7 shows the measurement pulse v scope and the Jacobian matrix J pulse calculated in equation (6). As expected, the Jacobian matrix value is large, near 1 ns, where the voltage of the pulse drops significantly.…”

Section: Analysis Of the Measurement Uncertaintysupporting

confidence: 59%

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Phase calibration and uncertainty evaluation for a RF comb generator

Cho

Koo

Kwon

et al. 2020

Measurement and Control

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In this paper, we present calibration and uncertainty evaluation methods for the phase of a radio-frequency comb generator using a calibrated sampling oscilloscope. In addition, we present many solutions that are indispensable for the precise calibration of phase up to 50 GHz. First, we correct the sampling time error, which is the systematic error of the equivalent time sampling system. Second, the frequency response of the oscilloscope is de-convoluted from the measured pulse, and the impedance mismatch between the radio-frequency comb generator and the oscilloscope is calibrated. Finally, we present the calibrated phase of the radio-frequency comb generator and the measurement uncertainty, which demonstrated 95% confidence intervals within ±4.4° up to 50 GHz. The calibrated radio-frequency comb generator, which is traceable to SI units, is used to calibrate a nonlinear vector network analyzer, vector signal analyzer, and oscilloscope. Uncertainties are easily propagated to the measurement uncertainty of other apparatus since it is obtained in the form of covariance.

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Section: Analysis Of the Measurement Uncertaintysupporting

confidence: 59%

“…Thus, the RF comb generator always produces the same phase relationship between all comb frequencies. As a result, the RF comb generators are used as the phase reference in many applications: nonlinear VNA phase calibration, 2 oscilloscope frequency response calibration, [3][4][5] vector signal analyzer calibration, 6 and so on.…”

Section: Introductionmentioning

confidence: 99%