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

  • Low-profile antennas for implantable medical devices inside a human body
  • Wideband and multiband antennas for wireless communications
  • Ultra wide band (UWB) antennas
  • Antennas for Cognitive and Software-Defined Radios

Satellite and Ground Antennas

  • Reflector surface distortion compensation using focal plane adaptive array feeds
  • Non-uniform Luneburg and 2-shell lens antennas
  • Shaped reflector antennas
  • Direct broadcast satellite (DBS) antennas

Antenna Measurement Techniques

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

Numerical and Optimization Techniques

  • Characterizations of dyadic Green's functions singularities
  • RCS reduction of canonical targets
  • Analysis of canonical eccentric structures
  • Analysis of radiation and scattering characteristics of antennas mounted on large structures

Periodic and Electromagnetic Band Gap Structures

  • Fractal FSS's
  • Frequency selective surfaces (FSS)
  • Low-profile circularly polarized curl antennas using EBG
  • Broadband characterization of complex periodic/EBG MEMS enabled FSS