Radomes: Radome is a short form of "Radar Dome". It is a protective cover for the antenna. The radiation emitting from the antenna passes through the radome and as a result some of the characteristics of the antenna change. Radome introduces phase delays, changes side-lobe levels of the antennas and introduces bore sight errors in seeker antennas. The radome has to be designed in such a way that it protects the antenna in the given environment and its effect on the antenna radiation remains minimum. Therefore, the design of radome is challenging, especially in the cases of airborne radomes used for antennas mounted on aircraft, satellite or a missile. We have developed the 3D ray tracing based software for analysis, design and optimization of antenna-radome systems for airborne applications.
Stealth Technology: It is very important to protect our strategic defense systems against detection by enemy radars. Absorbers are used to absorb the incoming electromagnetic waves so that the radar cross section (RCS) of the system can be reduced and the stealth property of the system can be improved. Rasorbers are absorbers with an additional transmission band. Therefore, the rasorber can be used as a radome. Both the absorbers and rasorbers are constructed using frequency selective surfaces (FSS) present on layers of dielectric material. The design is usually accomplished using a commercial EM solvers such as CST MWS or Ansys HFSS. Design and analysis of conformal FSS radomes is a very important direction for our research activities.
Millimeter-wave (mmWave) radar systems: We recently started exploring innovative sensing technologies for healthcare and biomedical applications using mmWave radars. mmWave signals enable non-contact, high-resolution monitoring of physiological parameters such as respiration, heart rate, and micro-movements, making them promising for remote patient monitoring, elderly care, and smart clinical environments. Students working in this area gain hands-on experience in antenna design, electromagnetic simulations, RF measurements, signal processing, and system prototyping. The research combines theory and experimentation to develop compact, safe, and reliable radar-based sensing systems for next-generation healthcare technologies. Students joining this group have the opportunity to work at the intersection of electromagnetics, biomedical sensing, and intelligent signal analysis, contributing to impactful real-world healthcare solutions.
Computational Electromagnetics: Our research in numerical methods in electromagnetics focuses on developing computational techniques to model, simulate, and understand complex electromagnetic phenomena. Students in this area work on methods such as finite element, finite difference, and integral equation techniques to analyze antennas, radomes, waveguides, scattering problems, and microwave devices. The research combines mathematical modeling, algorithm development, and high-performance computing to solve real-world engineering challenges. Students gain strong foundations in applied electromagnetics, scientific computing, and simulation-driven design, while working on problems relevant to aerospace, defense, healthcare sensing, and advanced communication systems. This area is ideal for students who enjoy both mathematics and practical engineering applications.
Peer Review
I serve as a reviewer for the following journals
- IEEE Transactions on Antennas and Propagation
- IEEE Transactions on Electromagnetic Compatibility
- International Journal of RF and Microwave Computer-Aided Engineering
