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Proceedings Paper

Experimental and numerical investigation of diffraction anomalies observed in FSS applications
Author(s): Marcin K. Sarnowski; Thomas Vaupel; Volkert W. Hansen; Ernst Kreysa; Hans-Peter Gemuend; Vera A. Soglasnova
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Paper Abstract

This paper reviews transmission anomalies of freestanding frequency surfaces (FSS), which are commonly used as filter and guiding structures in the far IR region. The effect is characterized by a sharp breakdown of the transmission factor in the passband and was first revealed by measurements. The paper demonstrates the numerical confirmation of these effects by computer aided calculations based on the method of moments combined with the Floquet theorem. The scattering characteristics are examined for different sets of parameters like the geometry of the structure, frequency, angle and polarization of the incident wave. The modeling with electric and magnetic currents allows the characterization of both patch and slot arrays.

Paper Details

Date Published: 16 August 2000
PDF: 11 pages
Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); doi: 10.1117/12.395407
Show Author Affiliations
Marcin K. Sarnowski, Univ. of Wuppertal (Germany)
Thomas Vaupel, Univ. of Wuppertal (Germany)
Volkert W. Hansen, Univ. of Wuppertal (Germany)
Ernst Kreysa, Max-Planck-Institut fuer Radioastronomie (Germany)
Hans-Peter Gemuend, Max-Planck-Institut fuer Radioastronomie (Germany)
Vera A. Soglasnova, Space Research Institute (Russia)

Published in SPIE Proceedings Vol. 4008:
Optical and IR Telescope Instrumentation and Detectors
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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