Penetration through slots in cylindrical cavities with cavity modes overlapping with the first slot resonance

Campione, Salvatore; Warne, Larry K.; Langston, William L.; Gutierrez, Roy K.; Hicks, Jeorge W.; Reines, Isak C.; Pfeiffer, Robert A.; Himbele, John J.; Williams, Jeffery T.

doi:10.1080/02726343.2021.1879356

Penetration through slots in cylindrical cavities with cavity modes overlapping with the first slot resonance

Journal Article · Wed Feb 17 00:00:00 EST 2021 · Electromagnetics

DOI:https://doi.org/10.1080/02726343.2021.1879356· OSTI ID:1765765

Campione, Salvatore ^[1]; Warne, Larry K. ^[1]; Langston, William L. ^[1]; Gutierrez, Roy K. ^[1]; Hicks, Jeorge W. ^[1]; Reines, Isak C. ^[1]; Pfeiffer, Robert A. ^[1]; Himbele, John J. ^[1]; Williams, Jeffery T. ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

In this work, we analyze the coupling into a slotted cylindrical cavity operating at fundamental cavity modal frequencies overlapping with the slot’s first resonance frequency through an unmatched formulation that accounts for the slot’s absorption and radiation processes. The model is validated through full-wave simulations and experimental data. We then couple the unmatched formulation to a perturbation theory model to investigate an absorber within the cavity to reduce the interior field strength, also validated with full-wave simulations and experiments. These models are pivotal to understanding the physical processes involved in the electromagnetic penetration through slots, and may constitute design tools to mitigate electromagnetic interference effects within cavities.

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000; NA0003525

OSTI ID:: 1765765

Report Number(s):: SAND--2021-0438J; 693371

Journal Information:: Electromagnetics, Journal Name: Electromagnetics Journal Issue: 2 Vol. 41; ISSN 0272-6343

Publisher:: Taylor & FrancisCopyright Statement

Country of Publication:: United States

Language:: English

References (11)

Perturbation theory to model shielding effectiveness of cavities loaded with electromagnetic dampeners Campione, Salvatore; Reines, Isak C.; Warne, L. K. Electronics Letters, Vol. 55, Issue 11 https://doi.org/10.1049/el.2019.0656	journal	May 2019
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Penetration Through Slots in Cylindrical Cavities Operating at Fundamental Cavity Modes Campione, Salvatore; Warne, Larry Kevin; Langston, William L. IEEE Transactions on Electromagnetic Compatibility, Vol. 62, Issue 5 https://doi.org/10.1109/TEMC.2020.2977600	journal	October 2020
Narrow Slot Algorithm Warne, Larry K.; Johnson, William A.; Zinser, Brian Frederick https://doi.org/10.2172/1615888	report	April 2020
Accurate Modeling of Monopole Antennas in Shielded Enclosures with Apertures Nie, Xiao-Chun; Yuan, Ning Progress In Electromagnetics Research, Vol. 79 https://doi.org/10.2528/PIER07100403	journal	January 2008
Penetration Through Slots in Cylindrical Cavities Operating at Fundamental Cavity Modes in the Presence of Electromagnetic Absorbers Campione, Salvatore; Warne, Larry Kevin; Reines, Isak C. Progress In Electromagnetics Research M, Vol. 96 https://doi.org/10.2528/PIERM20060803	journal	January 2020

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42 ENGINEERING
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absorption and radiation
coupling through slots
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loaded cavity
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Penetration through slots in cylindrical cavities with cavity modes overlapping with the first slot resonance

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