Time domain measurement of near field emissions from complex PCBs

D. W P Thomas, C. Smartt, H. Nasser, Mohd Hafiz Baharuddin, S. Greedy, G. Gradoni, S. C. Creagh, G. Tanner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper discusses how the measurements of the near-field emissions in the time domain can be used to characterize the broadband emissions from complex sources such as multifunctional Printed Circuit Boards (PCBs). The near-fields, transverse to the measurement surface, are sufficient to characterise the radiator provided the surface contains all the significant fields. For time domain measurements, the field probe is calibrated over a broad bandwidth for both amplitude and phase to provide the probe impulse response. A suitable digital filter applied with the same probe impulse response to extract the time domain magnetic field data from the probe output voltage. Results show that good agreement in the can be obtained. The measured near fields can then be used to create an equivalent model of the PCB which can be used to predict the emissions in the far field or in any environment. In this work the objective is to create an equivalent time dependent dipole array model of the DUT.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages707-710
Number of pages4
ISBN (Electronic)9782874870439
DOIs
Publication statusPublished - 18 Jan 2017
Externally publishedYes
Event46th European Microwave Conference, EuMC 2016 - London, United Kingdom
Duration: 4 Oct 20166 Oct 2016

Other

Other46th European Microwave Conference, EuMC 2016
CountryUnited Kingdom
CityLondon
Period4/10/166/10/16

Fingerprint

printed circuits
circuit boards
Printed circuit boards
Field emission
field emission
near fields
probes
Impulse response
impulses
digital filters
Surface measurement
Radiators
radiators
Digital filters
far fields
Magnetic fields
dipoles
broadband
bandwidth
Bandwidth

Keywords

  • Electromagnetic compatibility
  • Measurement
  • Near-field
  • Time domain

ASJC Scopus subject areas

  • Radiation
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Thomas, D. W. P., Smartt, C., Nasser, H., Baharuddin, M. H., Greedy, S., Gradoni, G., ... Tanner, G. (2017). Time domain measurement of near field emissions from complex PCBs. In European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016 (pp. 707-710). [7824441] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EuMC.2016.7824441

Time domain measurement of near field emissions from complex PCBs. / Thomas, D. W P; Smartt, C.; Nasser, H.; Baharuddin, Mohd Hafiz; Greedy, S.; Gradoni, G.; Creagh, S. C.; Tanner, G.

European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016. Institute of Electrical and Electronics Engineers Inc., 2017. p. 707-710 7824441.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Thomas, DWP, Smartt, C, Nasser, H, Baharuddin, MH, Greedy, S, Gradoni, G, Creagh, SC & Tanner, G 2017, Time domain measurement of near field emissions from complex PCBs. in European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016., 7824441, Institute of Electrical and Electronics Engineers Inc., pp. 707-710, 46th European Microwave Conference, EuMC 2016, London, United Kingdom, 4/10/16. https://doi.org/10.1109/EuMC.2016.7824441
Thomas DWP, Smartt C, Nasser H, Baharuddin MH, Greedy S, Gradoni G et al. Time domain measurement of near field emissions from complex PCBs. In European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016. Institute of Electrical and Electronics Engineers Inc. 2017. p. 707-710. 7824441 https://doi.org/10.1109/EuMC.2016.7824441
Thomas, D. W P ; Smartt, C. ; Nasser, H. ; Baharuddin, Mohd Hafiz ; Greedy, S. ; Gradoni, G. ; Creagh, S. C. ; Tanner, G. / Time domain measurement of near field emissions from complex PCBs. European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 707-710
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