Frequency selective surfaces

Details Frequency selective surfaces Frequency selective surfaces

2011-07-19

2011-07-19

Choi, Jacob Y (Department: 2821)

Communications: radio wave antennas

Antennas

Antenna components

Reexamination Certificate

active

07982686

ABSTRACT:
A freestanding frequency selective surface (FSS) is provided which comprises at least one shorted resonance aperture element (12). The shorted resonance aperture element provides a sensitivity to polarization. The shorted resonance aperture element may comprise at least one short, which may enable the FSS to be freestanding. The invention further provides an FSS device comprising at least one array of the freestanding frequency selective surfaces, and a method of forming the freestanding frequency selective surfaces.

REFERENCES:
patent: 5633209 (1997-05-01), Leedy
International Search Report, from PCT/GB2006/000950, mailed Jun. 7, 2006.
A. E. Martynyuk, et al., “Reflective Antenna Arrays Based on Shorted Ring Slots”, IEE MTT-S Digest, pp. 1379-1382 (2001).
R. Dickie, et al., “Micromachined 300 GHz high Q resonant slot frequency selective surface filter”, IEE Proc.-Microw. Antennas Propag., vol. 151, No. 1, pp. 31-36, (Feb. 2004).
A. E. Martynyuk, et al., “Frequency-selective surfaces based on shorted ring slots”, Electronics Letters, vol. 37, No. 5, pp. 1-2, (Mar. 1, 2001).
N. Misran, et al., “Concentric split ring element for dual frequency reflectarray antennas”, Electronics Letters, vol. 39, No. 25, pp. 1-2, (Dec. 11, 2003).
J. Shaker, et al., “Analysis of Multiresonant Frequency Selective Surfaces”, University of Manitoba, Department of Electrical & Computer Engineering, Winnipeg, Manitoba, Canada R3T 2N2, pp. 1948-1951, (1993).
“International Preliminary Report on Patentability”, PCT/GB2006/000950, Sep. 18, 2007.

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