Modelling Electromagnetic Radiation From Digital Electronic Systems By Means Of The Finite Difference Time Domain Method

RaiIton, C.J.; Richardson, KM; McGeehan, JP; Elder, K.F.

doi:10.1109/isemc.1992.626046

Cited by 4 publications

(1 citation statement)

References 12 publications

(1 reference statement)

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“….) [35][36][37][38][39][40] were also democratized and exploited for predicting the transient radiation of geometrically reproducible simple structures. With such computational EM methods (CEMs), validation methods of electronic structure NF emission were suggested [41,42].…”

Section: Introductionmentioning

confidence: 99%

Fully Time-Domain Scanning of Em Near-Field Radiated by Rf Circuits

Liu¹,

Ravelo²

2014

PIER B

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This paper deals with planar scanning technique of electromagnetic (EM) near-field (NF) emitted by electronic printed circuit boards (PCBs) fully in the time-domain (TD). The proposed EM scanning metrology is essentially based on the NF test bench available at the IRSEEM laboratory. It comprises motorized mechanical structures for moving the probe interconnected to electronic measurement instruments and controlled by a driver PC. The synoptic of the test bench is presented and technically examined. The characteristics of different elements constituting the measurement chain of the TD test bench understudy are described. The NF metrology developed is originally focused on the measurement of time-dependent magnetic field H(t) dedicated to the radiated emission electromagnetic compatibility (EMC) applications. An innovative calibration technique of the loop probe for detecting H(t) is established in order to ensure the post processing and extraction of the measured NF data. Then, validations were carried out via comparison with different simulations run with standard commercial tools. Mathematical analyses were also conducted for the improvement of the measurement post processing. To realize the mapping of time-dependent EM field components, a software interface edited with the graphical language LabVIEW was emulated to synchronize the probe displacement and the data acquisition. An UWB amplifier with average gain about 30 dB from DC to 300 MHz was designed and fabricated in order to decrease the measurement noise and to improve the quality of measured signals. As results of the study, TD NF mapping is demonstrated successfully by measuring the EM radiation emitted by electronic planar circuits. The technique developed is extremely useful in the field of EMC engineering for predicting the transient perturbations susceptible to degrade electronic functions in complex systems encountered usually for the automotive and aeronautic applications. 0 20 Time, ns E (z=5.05 mm, t=0.5 ns) z E (z=5.05 mm, t=1.5 ns) z E , V/m z E (z=5.05 mm, t=2.5 ns) z E (z=5.05 mm, t=3.5 ns) z E (t), y=5 mm z=5.05 mm z E (t), y= -5 mm z=5.05 mm z E (t), V/m z E (t), y=10 mm z=5.05 mm z E (t), y= -10 mm z=5.05 mm z E (t), V/m z E , V/m z E , V/m z E , V/m z E (t), V/m E (t), V/m z z Time, ns Time, ns H (z=5.05 mm, t=0.5 ns) z H (z=5.05 mm, t=1.5 ns) z H , V/m z E (z=5.05 mm, t=2.5 ns) z H (z=5.05 mm, t=3.5 ns) z E (t), y=5 mm z=5.05 mm z H (t), y= -5 mm z=5.05 mm z H (t), V/m z E (t), y=10 mm z=5.05 mm z H (t), y= -10 mm z=5.05 mm z H (t), V/m z H , V/m z H , V/m z H , V/m z

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Section: Introductionmentioning

confidence: 99%

Fully Time-Domain Scanning of Em Near-Field Radiated by Rf Circuits

Liu¹,

Ravelo²

2014

PIER B

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A survey of commercially available electromagnetic modeling software

Cabral

1993 International Symposium on Electromagnetic Compatibility

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As the processing power of computers increase, Electromagnetic (EM) modeling software becomes more readily available on the commercial market. The applications, the numeric codes, as well as computer platforms and costs vary widely from software package to software package. This paper attempts to demystify commercial EM software packages by surveying a number of numerical EM modeling software packages, familiarizing the reader with the features of each package and the modeling software in general.

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ESD source modeling in FDTD

Rizvi

Vetri

Proceedings of IEEE Symposium on Electromagnetic Compatibility

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Modelling Electromagnetic Radiation From Digital Electronic Systems By Means Of The Finite Difference Time Domain Method

Cited by 4 publications

References 12 publications

Fully Time-Domain Scanning of Em Near-Field Radiated by Rf Circuits

Fully Time-Domain Scanning of Em Near-Field Radiated by Rf Circuits

A survey of commercially available electromagnetic modeling software

ESD source modeling in FDTD

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