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Article Dans Une Revue Review of Scientific Instruments Année : 2013

Radio frequency current-voltage probe for impedance and power measurements in multi-frequency unmatched loads

Pierre-Alexandre Delattre
  • Fonction : Auteur
E.V. Johnson
Jean-Paul Booth
Sébastien Diné
  • Fonction : Auteur

Résumé

A broad-band, inline current-voltage probe, with a characteristic impedance of 50 Ω, is presented for the measurement of voltage and current waveforms, impedance, and power in rf systems. The probe, which uses capacitive and inductive sensors to determine the voltage and current, respectively, can be used for the measurement of single or multi-frequency signals into both matched and unmatched loads, over a frequency range of about 1–100 MHz. The probe calibration and impedance/power measurement technique are described in detail, and the calibrated probe results are compared with those obtained from a vector network analyzer and other commercial power meters. Use of the probe is demonstrated with the measurement of power into an unmatched capacitively coupled plasma excited by multi-frequency tailored voltage waveforms.
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Dates et versions

hal-01549400 , version 1 (28-06-2017)

Identifiants

Citer

Trevor Lafleur, Pierre-Alexandre Delattre, E.V. Johnson, Jean-Paul Booth, Sébastien Diné. Radio frequency current-voltage probe for impedance and power measurements in multi-frequency unmatched loads. Review of Scientific Instruments, 2013, 84, pp.015001. ⟨10.1063/1.4773540⟩. ⟨hal-01549400⟩
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