Estimation of the threat of IEMI to marine equipment and EM hardening solutions

Nana, R. Kanyou; Dickmann, Stefan; Schetelig, B.; Keghie, J.; Sabath, Frank

doi:10.1109/iceaa.2009.5297625

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Due to the complexity of modern electronic systems, this problem has been studied at various subsystem levels ranging from components [9,[12][13][14] and printed circuit boards (PCB) [15][16][17][18][19][20] to cables [21][22][23][24][25][26][27] and enclosures [15,[25][26][27][28][29][30], with some groups even consider-ing the system as a whole [31]. Furthermore, this problem is typically separated into four areas of study: coupling, energy distribution, device response, and system response.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Radiated Susceptibility of Printed Circuit Boards and the Effects of Via Fencing

et al. 2021

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Because modern electronic systems are likely to be exposed to high intensity radiated fields (HIRF) environments, there is growing interest in understanding how electronic systems are affected by such environments. Backdoor coupling in particular is an area of concern for all electronics, but there is limited understanding about the mechanisms behind backdoor coupling. In this work, we present a study on printed circuit board (PCB) backdoor coupling and the effects of via fencing. Existing work focuses on ideal stackups and indicates that edge radiation is significantly reduced by via fencing. In this study, both full wave electromagnetic modeling and experimental verification are used to investigate both ideal and practical PCB stackups. In the ideal scenario, we find that via fencing substantially reduces coupling, which is consistent with prior work on emissions. In the practical scenario, we incorporate component footprints and traces which naturally introduce openings in the top ground plane. Both simulation and experimental data indicate that via fencing in the practical scenario does not substantially mitigate coupling, suggesting that PCB edge coupling is not the dominant coupling mechanism, even at varying angles of incidence and polarization.

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Section: Introductionmentioning

confidence: 99%

A Study on the Radiated Susceptibility of Printed Circuit Boards and the Effects of Via Fencing

et al. 2021

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“…Protection against lightning [3], [4] and intentional electromagnetic interference [5] are out of the scope of this research. Two other categories of environments will be defined in Section II.…”

Section: Introductionmentioning

confidence: 99%

Protection Against Common Mode Currents on Cables Exposed to HIRF or NEMP

Leersum

Ven

Bergsma

et al. 2016

IEEE Trans. Electromagn. Compat.

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Above deck, cables on naval ships are exposed to highintensity radiated fields and nuclear electromagnetic pulse (NEMP) that may cause conducted interference and generate electromagnetic fields that exceed the immunity levels of commercially available equipment above and below deck. Exposed cables, such as open power plugs or lighting cables, are modeled and characterized both as a monopole antenna perpendicular to the deck and as a transmission line, representing a cable close to the deck. The placement of an illuminated cable close to the deck is a good protection measure for long cables at low frequencies, which includes NEMP protection. The coupled pulse from a high-intensity NEMP illumination is not expected to cause damage on electric installations. It is shown that for exposed cable length of maximum 25 cm and not placed in the line of sight of transmitters above 400 MHz, no additional protection measures are needed.

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“…The external EME on naval ships can be defined by four categories of electromagnetic threats. Protection against lightning [123], [124] and Intentional Electromagnetic Interference (IEMI) [125] are out of the scope of this research. Two other categories of environments will be defined in Section 9.1.…”

Section: Protection Of Exposed Cablesmentioning

confidence: 99%

Requirements with rationale and quantitative rules for EMC on future ships

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Estimation of the threat of IEMI to marine equipment and EM hardening solutions

Cited by 4 publications

References 2 publications

A Study on the Radiated Susceptibility of Printed Circuit Boards and the Effects of Via Fencing

A Study on the Radiated Susceptibility of Printed Circuit Boards and the Effects of Via Fencing

Protection Against Common Mode Currents on Cables Exposed to HIRF or NEMP

Requirements with rationale and quantitative rules for EMC on future ships

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