Active, frequency-selective meta-surfaces for reduced antenna footprint and jamming mitigation

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$149,834.00
Award Year:
2013
Program:
SBIR
Phase:
Phase I
Contract:
FA9453-13-M-0142
Agency Tracking Number:
F131-066-0797
Solicitation Year:
2013
Solicitation Topic Code:
AF131-066
Solicitation Number:
2013.1
Small Business Information
Solid State Scientific Corporation
27-2 Wright Road, Hollis, NH, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
179492566
Principal Investigator:
Darlene Franco
Principal Investigator
(603) 598-1194
darlene@solidstatescientific.com
Business Contact:
Linda Bouthillette
Contract Administrator
(603) 598-1194
linda@solidstatescientific.com
Research Institution:
n/a
Abstract
ABSTRACT: Significant cost reductions and system improvements would ensue if multiple transmit and receive antennas could share one RF aperture without performance degradation due to self-interference phenomenon. Effects of radar jamming signals would be also be reduced through the use of a properly designed free space RF electromagnetic filter placed within that common aperture. To enable such improvements, a narrow band meta-surface, capable of dynamically switching between at least two, but possibly more, RF transmissive states is proposed. Utilizing a suitably designed electrical or optical element placed across the gap of a split ring resonator, external means can be used to short the gap, effectively switching between a split ring resonator structure and a donut shaped resonant cavity, each centered at a different, non-overlapping, resonant frequency. Already demonstrated at long-wave IR optical frequencies using numerical techniques, this effort extends this previous work to RF frequencies and explores, initially through simulation and in later phases through direct fabrication and characterization of the meta-surface, the design space need to selectively switch between 20, 44 and 60GHz. Resonant cavity geometry will be investigated as well as array effects associated with transmission bandwidth, center frequency, switching speed and overall fabrication complexity. BENEFIT: An active frequency selective surface will allow multiple transmit and receive antennas to share a common aperture, dramatically reducing system footprint and mitigating effects of jamming signals. Such a surface will find use in space-based platforms where communication and sensor payload size, weight and component count are of extreme importance.

* information listed above is at the time of submission.

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