Infrared frequency selective surface based on circuit-analog square loop design

• Published in: IEEE transactions on antennas and propagation Vol. 53; no. 2; pp. 745 - 752
• Main Authors: Monacelli, B., Pryor, J.B., Munk, B.A., Kotter, D., Boreman, G.D.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.02.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Apertures; Electromagnetic wave absorption; Exact sciences and technology; Frequency selective surfaces; Frequency selective surfaces (FSS); infrared measurements; infrared radiometry; Infrared spectra; Infrared spectrometers, auxiliary equipment and techniques; Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Millimeter wave technology; Optical reflection; Optical surface waves; Physics; Radiometry; Resonance; RLC circuits; Frequency selective surfaces; infrared radiometry; Infrared spectroscopy; Fourier transformation; Analogue circuits; Infrared absorption; Resonant circuit; Frequency selective surfaces (FSS); infrared measurements; Spectral signature
• ISSN: 0018-926X; 1558-2221
• DOI: 10.1109/TAP.2004.841290

A frequency selective surface (FSS) was designed to have a resonant spectral signature in the infrared. The lithographically composed, layered structure of this infrared FSS yields a resonant response in absorption to infrared radiation at a wavelength determined by its FSS element structure and the structure of its substrate layers. The infrared spectral characteristics of this surface are studied via Fourier transform infrared spectroscopy and spectral radiometry in the 3 to 15 /spl mu/m region of the spectrum. The design is based on circuit-analog resonant behavior of square loop conducting elements.