Efficient MoM analysis of polarization selective surfaces using trefoil knot arrays

J. V. Hagen, R. Mittra, D. H. Werner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

The electromagnetic properties of (p,q) torus knots consisting of perfectly conducting thin wires were investigated previously. The (2,3) or trefoil knot has the unique property that its forward scattering characteristics depend on the handedness of an incident circularly polarized wave. This property is conserved when placing the knots in an array. We describe an efficient method of moments (MoM) approach that is especially suited for the analysis of arrays comprised of these knots. In the MoM, solving the linear system of equations is the most time consuming part when the number of unknowns becomes large. For certain classes of problems, the use of preconditioning techniques allows us to reduce the solution time considerably. Array-type of structures can be efficiently analyzed when using the block-LU preconditioner, as outlined. Also, we present the spectral radius as a criterion for assessing the convergence of the method. Finally, we apply the block-LU method to investigate the electromagnetic scattering properties of a medium sized array of trefoil knots.

Original languageEnglish (US)
Title of host publicationIEEE Antennas and Propagation Society International Symposium
Subtitle of host publicationWireless Technologies and Information Networks, APS 1999 - Held in conjunction with USNC/URSI National Radio Science Meeting
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1202-1205
Number of pages4
ISBN (Electronic)078035639X, 9780780356399
DOIs
StatePublished - Jan 1 1999
Event1999 IEEE Antennas and Propagation Society International Symposium, APSURSI 1999 - Orlando, United States
Duration: Jul 11 1999Jul 16 1999

Publication series

NameIEEE Antennas and Propagation Society International Symposium: Wireless Technologies and Information Networks, APS 1999 - Held in conjunction with USNC/URSI National Radio Science Meeting
Volume2

Other

Other1999 IEEE Antennas and Propagation Society International Symposium, APSURSI 1999
CountryUnited States
CityOrlando
Period7/11/997/16/99

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Radiation

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