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Computer Simulation for the Design of Radar Absorbing Material (RAM)

Award Information

Department of Defense
Award ID:
Program Year/Program:
2003 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Applied EM Inc.
100 Exploration Way, Suite 300 Hampton, VA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2003
Title: Computer Simulation for the Design of Radar Absorbing Material (RAM)
Agency / Branch: DOD / ARMY
Contract: DAAH01-03-C-R13
Award Amount: $119,947.00


To avoid detection by enemy radar, military platforms are often coated with Radar Absorbing Material (RAM). RAM is intended to operate over a wide range of frequencies with a minimum amount of angular dependence to increase platform survivability. Wepropose the development of a framework for designing broadband RAM by integrating expertise into very efficient computational electromagnetics and design optimization methods. The proposed full wave computational tools are fast and general in terms ofmaterial generality and geometry. They will be adapted and enhanced for RAM design applications and will be further integrated with Pareto genetic algorithms and new design methods best suited for graded composite materials. The proposed design methodswill allow novel material designs, which offer much greater variability in performance than those found in nature. Designs based on multilayered cascaded RLC configurations and new artificial, but manufacturable, materials designs will be considered. Theproposed design methods will be automated to allow for the specification of material properties subject to specific design guidelines on geometry, material and electrical requirements. The proposed computer simulation tool will be integrated with auser-friendly graphical interface for ease of use. The proposed computational tools are not only applicable to RAM designs, but they are also applicable for designing new materials for a variety of RF applications. These applications include frequencyselective surfaces, microwave filters and a large class of grated materials for antenna design.

Principal Investigator:

C. J. Reddy
Chief Technical Officer

Business Contact:

C. J. Reddy
Small Business Information at Submission:

24 Research Drive Hampton, VA 23666

EIN/Tax ID: 382962539
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No