Reliable prediction of EM radiation from a PCB at the design stage of electronic equipment

Saha, Pran Kanai; Dowling, Jennifer K.

doi:10.1109/15.673623

Cited by 17 publications

(3 citation statements)

References 14 publications

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“…Furthermore, although wires could be also connected by means of lumped elements networks or transmission lines, the surrounding environment should be vacuum (free space) or, at most, a half-space. Therefore, antennas and devices containing dielectric parts cannot be simulated, even though in the past the code was employed for simulating the emissions radiated by printed circuit board tracks [25]. When metallic plates have to be modeled, they are approximated with a grid of wires [26][27][28].…”

Section: Nec-2 and Derived Programsmentioning

confidence: 99%

Open-Source Software for Electromagnetic Scattering Simulation: The Case of Antenna Design

Fedeli

Montecucco²,

Gragnani

2019

Electronics

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Electromagnetic scattering simulation is an extremely wide and interesting field, and its continuous evolution is associated with the development of computing resources. Undeniably, antenna design at all levels strongly relies on electromagnetic simulation software. However, despite the large number and the high quality of the available open-source simulation packages, most companies have no doubts about the choice of commercial program suites. At the same time, in the academic world, it is frequent to develop in-house simulation software, even from scratch and without proper knowledge of the existing possibilities. The rationale of the present paper is to review, from a practical viewpoint, the open-source software that can be useful in the antenna design process. To this end, an introductory overview of the usual design workflow is firstly presented. Subsequently, the strengths and weaknesses of open-source software compared to its commercial counterpart are analyzed. After that, the main open-source packages that are currently available online are briefly described. The last part of this paper is devoted to a preliminary numerical benchmark for the assessment of the capabilities and limitations of a subset of the presented open-source programs. The benchmark includes the calculation of some fundamental antenna parameters for four different typologies of radiating elements.

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Section: Nec-2 and Derived Programsmentioning

confidence: 99%

Open-Source Software for Electromagnetic Scattering Simulation: The Case of Antenna Design

Fedeli

Montecucco²,

Gragnani

2019

Electronics

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“…The electromagnetic (EM) radiated emission is critical to system designers to characterize the electromagnetic interference of the product. On the other hand, all electrical and electronic equipment must go through the open area test site measurements to confirm their compatibility with EMC standards [2], [3]. To reduce the testing cost and shorten the time to the market, the precompliance verification is essential to today's complete design circle.…”

Section: Introductionmentioning

confidence: 99%

A Rigorous Approach for the Radiated Emission Characterization Based on the Spherical Magnetic Field Scanning

Jiang

2014

IEEE Trans. Electromagn. Compat.

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Electromagnetic radiated emissions from antennas, printed circuit boards (PCBs), and electronic devices are becoming increasingly critical to today's IC electromagnetic compatibility and interference properties. In this paper, a rigorous characterization approach is proposed. The electromagnetic field sampling over a spherical testing surface is applied to obtain the radiated magnetic field of the device under test (DUT) placed at the center of the sampling region. Using the dyadic Green's function (DGF) and Huygens' principle, the transformation from the sampled spherical tangential field to the far field is directly computed without resorting to the conventional inverse algorithm. The DGF considers the existence of the perfect magnetic conductor sphere and can be represented by a series of spherical wave functions based on the Ohm-Rayleigh method and the scattering superposition technique. For the DUT placed on the infinite perfect electric conducting plane, only hemispherical field scanning is needed based on the image theory. To prove the validity and accuracy of the proposed approach, the electric far-field of Hertzian dipoles, microstrip patch antennas, and PCBs are benchmarked at the end of this paper.Index Terms-Dyadic Green's function (DGF), Huygens' principle and uniqueness theorem, perfect magnetic conductor (PMC) sphere, spherical field sampling, spherical wave function.

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“…As an alternative, the straightforward far-field (FF) measurement conducted in the open area test site (OATS) or semianechoic chambers is also a widely referred technique in electromagnetic compatibility society [10]. Usually, the maximum radiation at 3 or 10 m away from the electronic system is of interest [10], [11]. Unfortunately, this method is time consuming, prohibitively expensive, and requires electromagnetic (EM) cleaning environments for OATS.…”

mentioning

confidence: 99%

A DGTD Scheme for Modeling the Radiated Emission From DUTs in Shielding Enclosures Using Near Electric Field Only

Shi

Jiang

et al. 2016

IEEE Trans. Electromagn. Compat.

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Reliable prediction of EM radiation from a PCB at the design stage of electronic equipment

Cited by 17 publications

References 14 publications

Open-Source Software for Electromagnetic Scattering Simulation: The Case of Antenna Design

Open-Source Software for Electromagnetic Scattering Simulation: The Case of Antenna Design

A Rigorous Approach for the Radiated Emission Characterization Based on the Spherical Magnetic Field Scanning

A DGTD Scheme for Modeling the Radiated Emission From DUTs in Shielding Enclosures Using Near Electric Field Only

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