Proceedings ArticleDOI
Automated near-field EMC/EMI scanning system with active electro-optical field probes
Sven Kuehn,M. Wild,P. Sepan,E. Grobelaar,Niels Kuster +4 more
- pp 109-112
TLDR
In this paper, the authors present an automated near-field scanner for chip-level EMC/EMI evaluations in the RF domain, which combines a large scanning volume of 500×500×100mm3 with micrometre resolution.Abstract:
We present an automated near-field scanner for system- to chip-level EMC/EMI evaluations in the RF domain. The scanning system combines a large scanning volume of 500×500×100mm3 with micrometre resolution. A novel optical surface reconstruction system allows measurement of the height map of the device under (DUT) test with better than 20μm uncertainty. This allows scanning at a precise distance above arbitrary electronic components. Key components of the scanning system are novel active miniaturized electro-optical time-domain E- and H-field sensors in the frequency range from 0.01 to >6GHz measuring the complex amplitude with a dynamic range of >120dB. The full optical isolation of the probes eliminates disturbance of the field of the DUT compared to electrically connected probes and offers up to 60dB better sensitivity than passive electro-optical probes.read more
Citations
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Proceedings Article
Recent developments in using measured sources in computational EMC
TL;DR: In this paper, the authors used measured near fields as a source for simulations in order to predict radiated emission from printed circuit boards placed in a product, based on only H-fields on the top and bottom surface on a Huygens' box surrounding the board.
Patent
Photoelectric electric field near field probe manufactured by using printed circuit board
Li Erping,Song Tao +1 more
TL;DR: The photoelectric electric field near field probe as discussed by the authors is a micro receiving antenna manufactured by using the printed circuit board and provided with the band-shaped line and the microstrip gap structure.
Dissertation
Near-field microwave addressing of trapped-ion qubits for scalable quantum computation
TL;DR: In this article, a two-zone single-layer surface-electrode ion trap is used to drive single-qubit rotations in the zone we choose to address whilst interferometrically cancelling the microwave field at the neighbor (non-addressed) zone.
Journal ArticleDOI
Investigation of Multilayer Print Circuit Board Probe With Temperature Compensation for Ultra-Wideband Near-Field Measurement
TL;DR: In this article, a novel ultra-wide band wireless probe applied to near-field electromagnetic measurement is presented, in which the probe is built on an FR-4 substrate with three layers and a temperature compensation circuit is designed to deal with the influence of temperature variation of the printed circuit board substrate.
Proceedings ArticleDOI
A photoelectric type tunable frequency probe for near-field EMI measurement
TL;DR: In this paper, a photoelectric type probe was proposed to provide a better solution to the near-field measurement of printed circuit board (PCB) and electronic equipment, and the structure of the strip line was simulated and analyzed, and three fixed resonance frequency points were located at 327.046MHz, 1.699GHz and 2.439GHz.
References
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Dissertation
New Methods for Triangulation-based Shape Acquisition using Laser Scanners
TL;DR: The goal of this thesis is to provide a holistic approach to the problem of shape acquisition, giving a wide survey of triangulation laser scanners, testing the performance of di erent systems, and to give contributions for both improving acquisition accuracy under adverse conditions and solving the calibration problem.
DissertationDOI
Advanced electromagnetic probes for near-field evaluations
TL;DR: In this paper, the influence of the mechanical construction materials, signal detection and readout on the probe characteristics with an emphasis on the field effects and coupling of probes used in lossy media such as: field dis¬ tortion by the probe (e.g.,boundary effects); field deflection inside the probe, eddy current effects, spatial resolution): field detection, readout.
Journal ArticleDOI
Electro-optic fiber sensor for amplitude and phase detection of radio frequency electromagnetic fields.
TL;DR: A miniature fiber-optic electromagnetic field (EMF) sensor that is capable of simultaneously detecting the amplitude and phase of an EMF in the range of 0.1-6 GHz is presented.