Polarization-selective surfaces composed of trefoil knot elements

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

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


In this paper, we demonstrate that the trefoil knot has the unique property that its forward scattering for circularly polarized waves exhibits a strong dependence on the handedness of the polarization. Both a single knot element as well as an array of these knots show this property which could be used in a polarization-selective surface (PSS).

Original languageEnglish (US)
Pages (from-to)170-173
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number3
StatePublished - May 5 1999

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics


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