Modern Electromagnetics, Physics and Modeling of Engineered Metamaterials, Smart Wireless Antennas and Sensors, Microwave/Millimeter-Wave Electronics and RF Integrated Circuits, Micro-Electromagnetics Front-Ends, Nano-Scale Devices and Systems, Theory and Simulation of Nano-Optics, Photonic Band Gap Crystals, Bio-Engineering, and Computational/Optimization Techniques.