Publisher DOI: | 10.1109/TEMC.2021.3073106 | Title: | Analysis and Optimization of Nonlinear Diode Grids for Shielding of Enclosures With Apertures | Language: | English | Authors: | Yang, Cheng Wendt, Torben De Stefano, Marco Kopf, Marc Beck, Christopher Grivet-Talocia, Stefano Schuster, Christian |
Keywords: | Apertures; band-stop; Bandpass; Computational modeling; diode grids; field intensity selectivity; guideline; hybrid simulation; Integrated circuit modeling; Load modeling; nonlinear shielding; Optimization; Switches; Transient analysis | Issue Date: | 1-Dec-2021 | Source: | IEEE Transactions on Electromagnetic Compatibility 63 (6): 1884-1895 (2021-12-01) | Abstract (english): | Lumped-element grids provide an attractive option for wave propagation control in electromagnetic compatibility (EMC) engineering. This article investigates the peak shielding effectiveness (SE) of a diode grid used for protection of enclosures with apertures against high-intensity radiation fields (HIRFs). The nonlinearly loaded aperture is investigated with an efficient hybrid field-circuit simulation approach. Numerical experiments show that design aspects, e.g., aperture and enclosure size, grid density, impedance characteristic of lumped loads, play an important role in the field transmission through a diode grid which is nonlinear and time-variant. With a physics-based analysis of the interaction between the grid and the enclosure-backed aperture, nonlinear shielding techniques are identified that allow a control of the peak SE between 0 and 26 dB in novel ways. For the first time, the peak SE curve of a diode grid is demonstrated with four different field intensity dependencies, i.e., intensity low-pass, intensity high-pass, intensity bandpass, and intensity band-stop selectivities from tens V/m to hundreds of V/m. By considering design aspects into a two-step optimization procedure, practical guidelines are provided for the nonlinear shielding implementation. |
URI: | http://hdl.handle.net/11420/9702 | ISSN: | 0018-9375 | Journal: | IEEE transactions on electromagnetic compatibility | Institute: | Theoretische Elektrotechnik E-18 | Document Type: | Article |
Appears in Collections: | Publications without fulltext |
Show full item record
Add Files to Item
Note about this record
Cite this record
Export
Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.