Portable Parallel Beam X-Ray Diffraction System for In-Line Process Control in the Steel Industry

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 44407
Amount: $99,861.00
Phase: Phase I
Program: SBIR
Awards Year: 1999
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
X-ray Optical Systems, Inc.
30 Corporate Circle, Albany, NY, 12203
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
Not Available There is a need for satellite position determination during launch and in orbit. During different phases of operation the satellite could be spinning up to 60 revolutions per minute and spin axis tumbling. The satellite position can be determined by an onboard GPS receiver that continuously tracks all-in-view GPS satellites. The objective of this effort is to complete the design of the GPS antenna system and evaluate how well it will meet the Air Force requirements. A low profile GPS microstrip antenna element was designed for this proposal, producing circular polarization at both GPS frequencies L1 and L2. Microstrip patch GPS antennas are often used on missiles, the proposed element is adapted from that demonstrated design. Preliminary impedance match and pattern data was computed for the element which shows good impedance match and element patterns at L1 and L2. The element would be placed at several locations on the satellite. Antenna architectures, element location, and beam control are discussed, with advantages of several architectures compared. This effort will be performed by a Principal Investigator with extensive antenna design experience including patch antennas on missiles, GPS antennas, satellite tracking and communications antennas, and computer-aided design of antennas.

* information listed above is at the time of submission.

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