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Development of Time-Domain Planar Near-Field Scanning Measurement Techniques

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
32248
Program Year/Program:
1996 / SBIR
Agency Tracking Number:
32248
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ANALYTIC DESIGNS, INC.
245 East Gay Street Columbus, OH 43215
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1996
Title: Development of Time-Domain Planar Near-Field Scanning Measurement Techniques
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $97,070.00
 

Abstract:

Near-field frequency domain meaasurements of antennas over a planar aperture are commonly used to obtain far-field patterns. This technique has now bben formulation in the time domain, which is very desirable for short pulse signals. An additional benefit, particularly significant for antennas with low-sidelobes, arises from time domain measurements in that edge effects of a finite aperture size can potentially be eliminated. Furthermore, the computational efficiency and simplicity of a time domain approach is comparable to a frequency domain approach when only a part of the far-field is calculated. Analytic Design, Incorporated (ADI) will develop an approach for a time domain measurement system to characterize target scattering and antenna radiation over wide bandwidths. This approach will be based upon ADI's experience in anechoic chamber integrated with measurement and numerical techniques. Using our extensive and detailed experience with time domain antenna systems, we have a unique broadband sensing probe concept which delivers a very flat frequency response with a broad pattern to produce very smooth time domain receiver characteristics. While this probe will require somewhat more numerical compensation, we believe that this concept is an excellent candidate for comparison against the electrically small, resistively-loaded dipole probe. In this effort, we will provide a comprehensive caparison of the two probe designs.

Principal Investigator:

Dr Harry Shamansky
6142249078

Business Contact:

Small Business Information at Submission:

Analytic Designs, Inc.
245 East Gay Street Columbus, OH 43215

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No