Research Areas

Our group has worked in many diverse areas within electromagnetics, antennas, and microwave engineering. Below are listed some brief descriptions of areas in which we made pioneering contributions. We also have presented exciting and comprehensive presentations at many IEEE sponsored conferences including the International Symposium on Antennas and Propagation and International Microwave Symposium (IMS). Below is a video presentation by Prof. Rahmat-Samii at a recent IMS conference highlighting our work in the areas of electromagnetics.

Antennas for Wireless Communications

  • Novel antenna designs for personal communications
  • Wideband and multiband antennas for wireless communications
  • Fractal antennas
  • Patch antennas

Satellite and Ground Antennas

  • Antennas for high power microwave (HPM) applications
  • Characterization of effects of periodic and aperiodic distortions on membrane reflector antennas
  • Stacked patch microstrip array antennas for remote sensing applications
  • Reflector surface distortion compensation using focal plane adaptive array feeds

Antenna Measurement Techniques

  • Analysis and development of antennas for compact range applications
  • Near-field technique for antenna measurement and characterization
  • Microwave holography diagnosis of reflector and array antennas
  • Bi-polar planar near-field antenna measurement technique

Numerical and Optimization Techniques

  • Characterizations of dyadic Green's functions singularities
  • Genetic algorithm (GA) optimization
  • Comprehensive diffraction synthesis and PO/PTD/GTD analysis techniques for multi reflector shaped antennas
  • Electromagnetic modeling of periodic structures including frequency selective surfaces (FSS) and mesh configurations

Periodic and Electromagnetic Band Gap Structures

  • Frequency selective surfaces (FSS)
  • Low-profile circularly polarized curl antennas using EBG
  • Fractal FSS's
  • Mutual coupling reduction of microstrip antennas with EBG