Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

More speed, less interference

25.04.2014

A semi-analytical model can compute electromagnetic interference on an electronic circuit board ten times faster than existing commercial software

As electronic components on electronic circuit boards continue to shrink, problems of electromagnetic compatibility are arising. Such problems include unwanted ‘noise’ effects due to electromagnetic interference and susceptibility.

“Electromagnetic interference is a critical problem for the electronics industry,” explains Xian-Ke Gao from the A*STAR Institute of High Performance Computing in Singapore. “Engineers are keen to understand how the electronic circuits react. However, it is difficult to measure such effects experimentally, because disassembling the device would affect the physical testing.”

To address this problem, the electronics industry has developed a suite of computer modeling tools, but these are cumbersome and require a lot of computing power. Now, Gao and colleagues have developed a computer model that is able to solve such problems more than ten times faster than existing models1.

Fairly coarse models are typically used to model electromagnetic interference effects on electronic circuit boards (see image). To do this, the device is divided into a grid of small cubes, and the electromagnetic fields to and from each cube are modeled individually. This approach requires a lot of computing power, especially if the grid size is small, but it has the advantage that it is flexible and can be adapted to various geometries. Except for interference effects, the same computer models can be applied to calculate electromagnetic fields for a range of electrical devices other than circuit boards.

A more targeted and efficient approach is required to measure interference effects. Researchers use mathematical equations to describe the electrical currents in a conducting wire. The physics of these transmission-line equations are well understood and, once adapted to the unique properties of circuit boards, are far easier to solve by a computer algorithm than the other, coarser modeling.

The first tests of the software package developed by the A*STAR researchers, which is based on the transmission-line equations, reliably solved a number of standard problems for electronic circuits. Compared to commercial models, the new software achieved very good agreement, especially for the main region of interest — frequencies below one gigahertz.

Speed, however, is the key advantage of using the software. Whereas commercial software requires more than two hours of computing on a regular laptop, the A*STAR software package needed less than ten minutes for the same task, explains Gao. “Our computational problem-solving kit can shorten electromagnetic interference trouble-shooting in the product design phase and therefore translates into time and cost savings for the industry.”

The A*STAR-affiliated researchers contributing to this research are from the Institute of High Performance Computing 

Journal information

Gao, X.-K., Zhao, H., Li, E.-P. & Hoefer, W. J. R. Radiated electromagnetic immunity analysis of flex cable with ground plane using transmission line equations. IEEE Transactions on Electromagnetic Compatibility 55, 875–882 (2013).

A*STAR Research | Research SEA News
Further information:
http://www.a-star.edu.sg
http://www.researchsea.com

More articles from Information Technology:

nachricht Quantum Technology for Advanced Imaging – QUILT
24.04.2018 | Fraunhofer-Institut für Lasertechnik ILT

nachricht Paint job transforms walls into sensors, interactive surfaces
24.04.2018 | Carnegie Mellon University

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: BAM@Hannover Messe: innovative 3D printing method for space flight

At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.

Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Quantum Technology for Advanced Imaging – QUILT

24.04.2018 | Information Technology

AWI researchers measure a record concentration of microplastic in arctic sea ice

24.04.2018 | Earth Sciences

Complete skin regeneration system of fish unraveled

24.04.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>