On-The-Aperture Patch Tuning (OTAPT) for Broadband Antennas

Award Information
Agency:
Department of Defense
Branch:
Special Operations Command
Amount:
$99,914.00
Award Year:
1998
Program:
SBIR
Phase:
Phase I
Contract:
N/A
Agency Tracking Number:
41631
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
DYNETICS, INC.
P.O. Box 5500, Huntsville, AL, 35814
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 Keith R. Harris
 (205) 922-9230
Business Contact
Phone: () -
Research Institution
N/A
Abstract
Dynetics proposes the use of On-The-Aperture Patch Tuning (OTAPT) as a potential solution for broadband performance from a low profile antenna. This solution is based on the innovative concept of integration of digital switching of tuning elements directly on the aperture surface. A single patch antenna can then be digitally tuned to successively lower frequencies, modifying the patch dimensions to the new resonant dimension by adding small strips. This technology may, in principle, be used over extremely broad frequency ranges, limited only by the performance of the switching devices employed in the aperture. RF power requirements on the switching devices (PIN diodes or GaAs switches, for example) are low relative to both the total radiated power because the incident RF power is distributed over several devices. The switching devices are readily controllable by digital computer commands which could be incorporated into existing crew instrumentation. With appropriate dual (or asymmetric) feed this concept can support any required polarization, including dual- or variable- polarization.

* information listed above is at the time of submission.

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