Oblique Incidence Performance of a Novel Frequency Selective Surface Absorber

By Ghaffer Kiani, K. L. Ford, Karu Priyathama Esselle, Andrew R. Weily, Chinthana Panagamuwa. IEEE Transactions on Antennas and Propagation, 2007

140 citations recorded by the source corpus.

Oblique incidence performance of a novel two-layer absorb/transmit frequency selective surface (FSS) is investigated. The FSS has good frequency stability for both horizontally and vertically polarized waves incident normally or at oblique angles. Due to its transmission for 900/1800/1900 MHz mobile bands and good absorption for 5 GHz waves, it has the potential as a security wall or isolator for 5 GHz WLAN systems. The absorption in the stop band helps reduce additional WLAN multipath fading caused by conventional reflecting FSS designs. The first layer of the FSS consists of conventional conducting cross dipoles having a circular aperture in the centre, while the second layer uses resistive cross dipoles. Moreover, the conducting cross dipoles have been sandwiched between two dielectric sheets to achieve a stable response for different angles of incidence. The periodicity of both FSS layers is the same while the distance between the two layers is reduced to one eighth of the free-space wavelength. This reduction leads to a more compact design compared to the conventional Salisbury screen, while still achieving acceptable absorption in the stopband. Both theoretical and experimental results are presented to confirm the performance of the absorb/transmit FSS.

Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/4e0a8d8bee758c06b5c448f15251141417f34700

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In Aerospace Engineering

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Cross-Dipole Bandpass Frequency Selective Surface for Energy-Saving Glass Used in Buildings (2011, background): “prior research indicated that the cross-dipole FSS provides the required bandwidth and an acceptable angular stability [14], [15].”
Frequency-Selective Rasorber Based on Square-Loop and Cross-Dipole Arrays (2014, background): “Furthermore, a resistive cross-dipole lossy layer placed above a metallic bandstop (strip-type) FSS was proposed in [11]–[13].”
3-D Frequency Selective Rasorber: Concept, Analysis, and Design (2016, methodology): “In the past, an FSR was realized by cascading a lossy array of Jaumann or circuit analog absorber [8] and a lossless FSS [9], where the transmission characteristic was provided by the conventional FSSs, while the absorption is achieved by the lossy array, such as resistive cross dipoles [10], [11], ”