Shaped Radome and Embedded Frequency Selective Surface Modeling for Large-Scale Platforms Navy SBIR FY2016.1 Sol No.: Navy SBIR FY2016.1 Topic No.: N161-022 Topic Title: Shaped Radome and Embedded Frequency Selective Surface Modeling for Large-Scale Platforms Proposal No.: N161-022-0812 Firm: Remcom Inc. 315 S. Allen St. Suite 416 State College, Pennsylvania 16801 Contact: Gary Bedrosian Phone: (814) 861-1299 Web Site: http://www.remcom.com Abstract: The problem of accurately predicting the performance of a complex antenna system with a variable-thickness, frequency selective surface radome mounted on an aircraft is a difficult one both theoretically and numerically. The complexity of the antenna system calls for use of a full-wave numerical solver, while the large electrical size of the aircraft calls for use of a high-frequency method. Remcom proposes an innovative solution that combines Remcom's full-wave solver for the antenna system, XFdtd, with Remcom's high-frequency solver for the aircraft surface, XGtd. The coupling between the two solvers will be provided by two innovative interfaces to XFdtd, one for incoming electromagnetic waves and one for outgoing waves. This solution is able to handle the full complexity of the structures and surfaces in the near vicinity of the antenna, while being scalable to electrically large structures. Because XFdtd and XGtd are proven commercial products with established user communities, commercialization of the proposed hybrid combination will satisfy the needs of existing customers for a practical solution for the analysis of antenna systems mounted on electrically large platforms, as well as open new opportunities in the defense, automotive, and telecommunication industries. Benefits: The ultimate outcome of this SBIR will be a new hybrid simulation tool that provides two key new capabilities for simulation of antennas on platforms: (1) the ability to simulate detailed features and phenomena associated with complex radome structures, and (2) the ability to simulate these features for radomes and other complex objects embedded within electrically-large platforms such as aircraft. With frequencies of new systems continuing to increase, issues of electrical size come up more and more frequently. The proposed multi-scale hybrid solution solves this problem, providing detail near the antenna where it's needed, but large-scale platform effects where higher-frequency methods provide enough fidelity for an accurate result, while maintaining a reasonable computational requirement that is achievable for the general user community. There are many applications for this technology in both industry and military sectors, including: design and integration of antennas onto vehicles, vessels, and aircraft; radar signature analysis; virtual drive testing for automotive communication and radar; and various applications for wireless communication and electronic warfare. As an extension to Remcom's existing commercial full-wave solver (XFdtdr) and high-frequency scattering ray-tracing solution (XGtdr), Remcom is well-poised to transition the capability into a commercial product, with clear benefits for Remcom's existing user base as well as potential opportunity to meet the needs of new customers in these industries. Return