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

  • Impulse radiated antennas (IRA)
  • Fractal antennas
  • Antennas for Cognitive and Software-Defined Radios
  • Patch antennas

Satellite and Ground Antennas

  • Direct broadcast satellite (DBS) antennas
  • Ultra scanning geostationary radar antennas
  • Shaped reflector antennas
  • Reflector surface distortion compensation using focal plane adaptive array feeds

Antenna Measurement Techniques

  • Near-field technique for antenna measurement and characterization
  • Spherical near-field measurement technique
  • Analysis and development of antennas for compact range applications
  • Bi-polar planar near-field antenna measurement technique

Numerical and Optimization Techniques

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

Periodic and Electromagnetic Band Gap Structures

  • Enhanced performance patch antennas on high permittivity substrate using EBG
  • Mutual coupling reduction of microstrip antennas with EBG
  • Low-profile circularly polarized curl antennas using EBG
  • Fractal FSS's