Communications: radio wave antennas – Antennas – Antenna components
Reexamination Certificate
2008-05-05
2009-12-29
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Antenna components
C343S770000, C333S202000
Reexamination Certificate
active
07639206
ABSTRACT:
A frequency selective surface-based (FSS-based) device (200) for processing electromagnetic waves providing at least a third-order response. The FSS-based device includes a first FSS (202), a second FSS (210), and a high quality factor (Q) FSS (206) interposed between the first and second FSSs. A first dielectric layer (204) and a second dielectric layer (208) separate the respective FSS layers. The first and second FSSs have first and second primary resonant frequencies, respectively. The high Q FSS has a lower primary resonant frequency relative to the first and second primary resonant frequencies. The overall electrical thickness of the FSS device can be <λ/10. The high Q FSS has a loaded quality factor of at least thirty at the lower primary resonant frequency.
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Sarabandi, K., et al., “A Frequency Selective Surface with Miniaturized Elements,” IEEE Transactions on Antennas and Propagation, vol. 55, No. 5, May 2007. pp. 1239-1245.
Ho Tan
Jetter Neil R.
Patents on Demand, P.A.
University of Central Florida Research Foundation Inc.
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