Subcellular modeling of thin slots in the finite-difference time-domain (FDTD) method is investigated. Two subcellular algorithms for modeling thin slots with the FDTD method are compared for application to shielding end osures in electromagnetic compatibility (EMC). The stability of the algorithms is investigated, and comparisons between the two methods for slots in planes, and slots in loaded cavities are made. Results for scattering from a finite-length slot in an infinite plane employing one of the algorithms are shown to agree well with published experimental results, and power delivered to an enclosure with a slot agree well with results measured for this study.


Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

EM Radiation; EM Scattering; EMC; FDTD Algorithms; Algorithms Stability; Electromagnetic Compatibility; Electromagnetic Interference; Electromagnetic Shielding; Electromagnetic Wave Scattering; Experimental Results; Finite Difference Time Domain Method; Finite Difference Time-Domain Analysis; Finite-Length Slot; Infinite Plane; Loaded Cavities; Numerical Stability; Packaging; Power; Shielding Enclosures; Subcellular Algorithms; Subcellular Modeling; Thin Slots; FDTD; Slot; Boundary Conditions; Computer Simulation; Finite Difference Method; Stability; Time Domain Analysis; Absorbing Boundary Conditions; Finite Difference Time Domain Algorithms; Algorithms

International Standard Serial Number (ISSN)

0018-9375; 1558-187X

Document Type

Article - Journal

Document Version

Final Version

File Type





© 1997 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.