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
  • Low-profile antennas for implantable medical devices inside a human body
  • Impulse radiated antennas (IRA)
  • Ultra wide band (UWB) antennas

Satellite and Ground Antennas

  • Ku/Ka bands spaceborne precipitation radar antennas
  • Distortion compensation using MEMS-controlled sub-reflectarray
  • Optimization and design of corrugated horns
  • Stacked patch microstrip array antennas for remote sensing applications

Antenna Measurement Techniques

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

Numerical and Optimization Techniques

  • Characterizations of dyadic Green's functions singularities
  • Genetic algorithm (GA) optimization
  • RCS reduction of canonical targets
  • Comprehensive diffraction synthesis and PO/PTD/GTD analysis techniques for multi reflector shaped antennas

Periodic and Electromagnetic Band Gap Structures

  • Fractal FSS's
  • Broadband characterization of complex periodic/EBG MEMS enabled FSS
  • Enhanced performance patch antennas on high permittivity substrate using EBG
  • Frequency selective surfaces (FSS)