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
  • Ultra wide band (UWB) antennas
  • Wideband and multiband antennas for wireless communications

Satellite and Ground Antennas

  • Shaped reflector antennas
  • Optimization and design of corrugated horns
  • Ultra scanning geostationary radar antennas
  • Distortion compensation using MEMS-controlled sub-reflectarray

Antenna Measurement Techniques

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

Numerical and Optimization Techniques

  • RCS reduction of canonical targets
  • Electromagnetic modeling of periodic structures including frequency selective surfaces (FSS) and mesh configurations
  • Characterizations of dyadic Green's functions singularities
  • FDTD computational technique

Periodic and Electromagnetic Band Gap Structures

  • Low-profile circularly polarized curl antennas using EBG
  • Frequency selective surfaces (FSS)
  • Mutual coupling reduction of microstrip antennas with EBG
  • Broadband characterization of complex periodic/EBG MEMS enabled FSS