"The deployment of advance wireless communication systems requires detail knowledge of the propagation environment and its effect on the system's performance. Physics based propagation prediction models can provide an accurate assessment of the propagationchannel without the need for an intrusive… More

This proposed work envisions a software suite for modeling antennas with radomes and frequency selective surfaces. Infinite as well as finite arrays will be modeled efficiently. Phase I work will involve a feasibility study of the proposed computationalalgorithms and their capabilities for various… More

This proposed work envisions a software suite complete with a graphical interface for modeling antennas with radomes and frequency selective surfaces deployed on complex platforms. Large finite arrays will be modeled efficiently. Nearby structures willalso be considered by innovative approaches.… More

Virtual EM Inc. proposes to develop STAP techniques using machine learning algorithms for eventual implementation in critical radar systems. These algorithms require less time to train than neural networks. Virtual EM's simulation packages will be used to train the algorithms for array element… More

Virtual EM, in collaboration with the Michigan Nanotechnology Institute for Medicine and Biological Sciences (MNIMBS) of the University of Michigan, proposes to develop the first stage in a BWA sensor, an electronic switch that indicates the presence of a biological warfare agent (BWA). This work… More

An FPGA-based solution is proposed for Adaptive Digital Beamforming for missle defense radars. The FPGA implementation speeds up real-time computations and allows for remote retuning of the algorithm after launch. Support Vector Machines (SVMs) ensures reliable performance in adverse conditions. The… More

Proposed work envisions development of high-rejection filters and smart reconfigurable antennas using MEMS switches. Adaptive feature of the proposed antenna provides higher S/N ratio and extends range for surface-to-surface communications. Tunable high-rejection filters lend themselves easily to… More

A prototype wearable smart reconfigurable antenna for the Suit will be built to be used during NASA's EVA operations on lunar surface. The design is based on the Self-Structuring Antenna (SSA) technology utilizing MEMS switches for configuration of the aperture. Electrothermally and… More

This Small Business Innovation Research Phase I research project involves using olfactory neuron cells integrated with electronic circuits, and interfacing with a wireless hardware based on ZigBee technology for detection at a standoff distance. Recent experiments with pouched rats have demonstrated… More

Virtual EM is proposing to build a cluster utilizing a commercially available special purpose processor. The proposed system will offer a performance-to-price ratio, which is "five times" better than the leading commercial clusters. Using this cluster and Virtual EM's 3D Method of Moments simulator,… More

Virtual EM Inc. proposes a system that employs semi-passive RFID sensors with carbon nanotube inkjet-printed antenna and solar powered mesh-networked beacons. The tags will be powered by printed thin film batteries and/or via energy harvesting. Beacons will communicate among themselves and read the… More

The supply voltages of modern baseband digital integrated circuits are well below the required actuation voltages for the MEMS tunable filters. Therefore, a charge pump is used to achieve the required high actuation voltage for the MEMS devices. Current state-of-the-art charge pump designs produce… More

Virtual EM is proposing a platform coupling technique for improving efficiency of electrically small antennas on ground, sea and air vehicles. The the proposed approach, a portion of the platform becomes the extension of the antenna and hence result in higher performance. Technique has been… More

A computational tool will be developed for predicting scattering from target candidates suitable for missile defense such as missles and decoys. Fast algorithms will be employed as well as hardware acceleration (for multi-core CPUs and GPUs) for speeding up computations. The tool will be modular for… More