The prediction of the performance of radio communication channels in complex environments is a challenging problem for computational electromagnetics. The geometries involved are very complicated in. shape. They are also very large, so that large amounts of data are needed to describe the… More

Accurate analysis of electromagnetic anechoic chambers is a challenging problem.The geometry is complicated and includes multiple antenna radiators, targets,supporting structures, and absorber. Furthermore the frequency range isextensive, traversing a broad range from 200 MHz to 18 GHz. For… More

The interaction of radio frequency electromagnetic energy with the human body is best computed with finite difference methods. For good accuracy, especially at higher frequencies, the human body description requires many millions of individual voxels. Thevoxels fill the entire volume of the body… More

Predicting the signal level and coverage area of radio frequency communication channels between base stations, vehicles and warfighters is a challenging problem. The channel may involve radio frequency interactions with hills, foliage, and buildings.The paths may involve long distances over hilly… More

The interaction of radio frequency electromagnetic energy with the human body is best computed with finite difference methods. For good accuracy, especially at higher frequencies, the human body description requires many millions of individual voxels. Thevoxels fill the entire volume of the body… More

Accurate analysis of electromagnetic anechoic chambers is a challenging problem. The geometry is complicated and includes multiple antenna radiators, systems under test (SUT), supporting structures, and absorber. Furthermore the frequency range isextensive, traversing a broad range from 50 MHz to… More

"Predicting the radio signal levels and coverage areas for Information Warfare System communication channels between base stations, vehicles and warfighters is a challenging problem. The channel may involve radio frequency interactions with hills, foliage,and buildings. The paths may involve long… More

"Predicting the signal level and coverage area of WIN-T radio frequency communication channels between base stations, vehicles and warfighters is a challenging problem. The channel may involve radio frequency interactions with hills, foliage, andbuildings. The paths may involve long distances over… More

Predicting the signal level and coverage area of radio frequency communication channels between base stations, vehicles and warfighters is a challenging problem. The channel may involve radio frequency interactions with hills, foliage, and buildings. Thepaths may involve long distances over hilly… More

Predicting the signal level and coverage area of radio frequency communication channels between base stations, vehicles and warfighters is a challenging problem. The physical channel may involve radio frequency interactions with hills, foliage, andbuildings. The paths may involve long distances… More

Predicting the radio signal levels and coverage areas for Information Warfare System communication channels between base stations, vehicles and warfighters is a challenging problem. The channel may involve radio frequency interactions with hills, foliage, and buildings. The paths may involve long… More

Accurate analysis of multiple wavelength structures which contain regions with fine details is a challenging problem. A full wave method such as the Finite Difference Time Domain method can be used to analyze large structures as long as enough computer memory. High frequencies ray methods are… More

A comprehensive electromagnetic software suite is proposed for designing small, low-altitude VHF/UHF antennas for use in a network of unattended ground sensors. The software suite will use physics-based propagation models, including full wave FDTD, UTD, and Parabolic Equation methods to evaluate of… More

A comprehensive electromagnetic software suite is proposed for designing small, low-altitude VHF/UHF antennas for use in a network of unattended ground sensors. The software suite will use only physics-based propagation models based on full wave FDTD,UTD and Parabolic Equation methods to evaluate of… More

Accurate analysis of multiple wavelength structures which contain regions with fine details is a challenging problem. A full wave method such as the Finite Difference Time Domain (FDTD) method can be used to analyze large structures as long as enough computer memory is available. High frequency… More

With the advent of High Powered Microwave (HPW) weapons, it has become necessary to understand the effect of the radiated energy on those persons exposed. Additionally other systems, such as microwave and troposcatter systems, also pose a danger to humans who are exposed to their radiated energy.… More

The proposed work addresses the need for a comprehensive particle simulation software package which provides advanced geometry meshing techniques to reduce inaccuracies encountered using standard orthogonal Cartesian FDTD grids. Currently there exists a void in commercial PIC software. Government… More

The radiation from antennas mounted on a geometrically complex platform, such as an aircraft, remains a challenging electromagnetics problem. Since military applications often require multiple antennas on the same platform, the analysis of interference is also important. It is difficult to use… More

With ever sophisticated antenna and transceiver designs, the traditional separation between antennas and circuits has become blurred. Many antenna designs now contain integrated circuitry and have circuitry that includes active and passive devices with nonlinear and time-varying characteristics. In… More

In many military and civilian situations, the placement of an antenna is restricted by available space and surrounding structures. Additionally, antenna design engineers are continuously considering various methods that can optimize an antenna design for criteria, e.g. radiation efficiency,… More

This Small Business Innovation Research Phase I project will investigate the feasibility of developing and implementing computational algorithms to study a broad range of plasma discharge and plasma surface processes. New algorithms will be based on a fully kinetic description of plasmas such that… More

With the advent of High Powered Microwave (HPW) weapons, it has become necessary to understand the effect of the radiated energy on those persons exposed. Additionally, other systems, such as microwave and troposcatter systems, also pose a danger to humans who are exposed to their radiated energy.… More

The goal of this effort is to create a hybrid software product that combines a full wave electromagnetic solver with a sophisticated circuit simulator creating an engineering tool that is capable of simulating the complete system of complex electronic devices. This tool will be powerful asset for a… More

The goal of this effort is to create a hybrid software product that combines a full wave electromagnetic solver with a sophisticated circuit simulator creating an engineering tool that is capable of simulating the complete system of complex electronic devices. This tool will be powerful asset for a… More

The objective of this topic is to rapidly and efficiently develop mobile applications (apps) for handheld devices and to demonstrate their utility in a number of military domains. Remcom proposes to develop within the TIGR environment a handheld app for the Android device that will provide real… More

The ability to model complex systems relevant to EW defeat scenarios, currently requires a knowledgeable user to decompose high-level phenomena into a set of individual phenomena in order to model each phenomenon individually. There are no end-to-end models or systems of models that can… More

ABSTRACT: A hybrid computational Electromagnetic solution will be developed that combines techniques in order to handle far-field propagation, near-field interactions, and detailed interactions with complex objects, such as human anatomical models, while taking advantage of the computational power… More

ABSTRACT: A new thermal response module will be developed for the XFdtd electromagnetic full-wave solver, building on versions that were available in prior releases of the software to incorporate accuracy and new features from the latest approaches in the technical literature. A user-friendly… More

The ability to model complex systems relevant to EW defeat scenarios requires a knowledgeable user to decompose analyses into a set of individual phenomena for separate analysis. There are no end-to-end models that can appropriately model all aspects of the problem and coherently bring them… More