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

  • Ultra wide band (UWB) antennas
  • Patch antennas
  • Antennas for Cognitive and Software-Defined Radios
  • Impulse radiated antennas (IRA)

Satellite and Ground Antennas

  • Non-uniform Luneburg and 2-shell lens antennas
  • Mesh reflector antennas
  • Distortion compensation using MEMS-controlled sub-reflectarray
  • Antennas for high power microwave (HPM) applications

Antenna Measurement Techniques

  • Microwave holography diagnosis of reflector and array antennas
  • Bi-polar planar near-field antenna measurement technique
  • Spherical near-field measurement technique
  • Near-field technique for antenna measurement and characterization

Numerical and Optimization Techniques

  • Genetic algorithm (GA) optimization
  • Analysis of canonical eccentric structures
  • Characterizations of dyadic Green's functions singularities
  • Particle swarm optimization (PSO)

Periodic and Electromagnetic Band Gap Structures

  • Enhanced performance patch antennas on high permittivity substrate using EBG
  • Low-profile circularly polarized curl antennas using EBG
  • Frequency selective surfaces (FSS)
  • Mutual coupling reduction of microstrip antennas with EBG