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Antenna Back-lobe and Side-lobe Suppression using Tapered Periodic Surfaces

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F29601-01-C-0094
Agency Tracking Number: 011NM-1108
Amount: $98,106.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2001
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
Post Office Drawer 719, 735 State Street
Santa Barbara, CA 93102
United States
DUNS: 062090113
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Errol English
 Division Leader, Antennas
 (937) 429-9261
Business Contact
 Scot Fries
Title: Director of Contracts
Phone: (805) 963-8761
Research Institution

Mission Research Corporation will design, fabricate, and test microwave antennas with very low side and back lobes using an innovative technology known as Tapered Periodic Surfaces (TPS). A TPS can be used as an edge treatment to drastically reduce EMfield diffraction. A TPS is similar to a tapered R-Card, except that it is reactive rather than resistive. The TPS has many advantages over a tapered R-Card. These include; frequency compensation, ease of fabrication, polarization diversity, and highpower robustness. In Phase I, several basic TPS structures (flat panels) will be designed, fabricated, and tested. These basic TPS designs will then be incorporated into a design of a simple demonstration antenna (TBD, but possibly a pyramidal or conicalhorn). Laboratory tests will be performed on this antenna to demonstrate the low side lobe effectiveness of the TPS treatment. Also in Phase I, a preliminary performance specification, as well as a conceptual design, will be generated for an advancedultra-low side/back lobe antenna. This antenna will be designed, fabricated, and tested in Phase II.The satellite telecommunications industry is currently expanding at an incredible rate. With vast increases in the number of both satellites and groundterminals, interference between adjacent systems in a crowded envrionment is a serious problem. Ultra low side lobe antennas will be desperately needed. In parallel with this SBIR program, MRC will maintain a relationship with major non-militarytelecommunications companies in order to address their need for low side lobe antennas.

* Information listed above is at the time of submission. *

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