A time-domain system for the measurement of non-stationary EMI up to 40 GHz

Hoffmann, Christian; Slim, Hassan Hani; Russer, P.

doi:10.1109/apemc.2012.6238008

Cited by 7 publications

(1 citation statement)

References 4 publications

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“…On the one hand, there are conventional swept receivers with super-heterodyne architecture that, fundamentally, measure the amplitude of the spectrum in the frequency domain [2]. On the other hand, there are the FFT-based measuring receivers that take advantage of time-domain measurements for speeding up emissions testing and for providing time-frequency analysis features which are useful for evaluating and mitigating the impact of transient and stochastic disturbances [3]- [5]. Currently, real-time analyzers [6], [7] and oscilloscope-based implementations are the two approaches for realizing FFT-based measuring receivers.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Performance Evaluation of Full Time Domain EMI Measurement Systems

Azpúrua

Polis

Femandez

et al. 2018

2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)

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This paper presents the evaluation of the performance of Full Time Domain Electromagnetic Interference measurement systems in terms of the noise figure, the linearity, the dynamic range, the voltage standing wave ratio and the crosstalk. The abovementioned parameters allow a broader characterization of the oscilloscope-based implementations of CISPR 16-1-1 measuring receivers, providing relevant specifications that are beyond the standardized baseline requirements. Such metrics are assessed using the actual settings and operating conditions required for compliant time-domain EMI measurements. For the specific oscilloscope used in the experiments, the noise figure is measured for all the different vertical ranges between 5 mV/div and 1 V/div. Likewise, the linearity and the dynamic range, in terms of the effective number of bits, was measured for sine wave input signals with an rms voltage swept between 20 mV and 1 V. This experiment was repeated for CISPR bands A, B and C/D using 10 kHz, 1 MHz, and 100 MHz sinusoids, respectively. The results allow a more comprehensive comparison between Full-TDEMI measurement systems and the more conventional superheterodyne architecture receivers that are completely specified in the frequency domain.

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