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

  • MIMO antennas
  • Novel antenna designs for personal communications
  • Patch antennas
  • Low-profile antennas for implantable medical devices inside a human body

Satellite and Ground Antennas

  • Characterization of effects of periodic and aperiodic distortions on membrane reflector antennas
  • Distortion compensation using MEMS-controlled sub-reflectarray
  • Reflector surface distortion compensation using focal plane adaptive array feeds
  • Stacked patch microstrip array antennas for remote sensing applications

Antenna Measurement Techniques

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

Numerical and Optimization Techniques

  • Particle swarm optimization (PSO)
  • RCS reduction of canonical targets
  • Genetic algorithm (GA) optimization
  • Analysis of canonical eccentric structures

Periodic and Electromagnetic Band Gap Structures

  • Low-profile circularly polarized curl antennas using EBG
  • Fractal FSS's
  • Broadband characterization of complex periodic/EBG MEMS enabled FSS
  • Enhanced performance patch antennas on high permittivity substrate using EBG