My research contributions are primarily in the field of full-wave analysis and design of efficient antennas and guided systems, miniaturized antennas, numerical techniques and metamaterials. We had shown that it is possible to realize a high radiated power gain from an electrically small antenna and an electrically small antenna array using a metamaterial shell of reasonable thickness, which was earlier reported to be one of the primary design constraints for practical realization. We have also designed and fabricated novel electrically small antennas with Q-factor very near the Chu-limit, together with highly miniaturized planar antenna configurations. In addition, we have successfully designed an efficient metamaterial based superstrate for the significant performance enhancement of an electrically small antenna. We have also investigated new hybrid mode characteristics in a metamaterial loaded circular waveguide with a rigorous analysis of both isotropic and anisotropic metamaterial cases.
In addition, we had been also engaged in the research on the acceleration of the full-wave Green’s function based technique for the analysis of the dielectric resonator antenna (DRA), resulting in a very significant improvement in the computational speed by a factor of 100 compared to that in the literature. Our research group has also for the first time characterized the modes of the multilayer DRA with arbitrary number of layers. We had also actively contributed in the efficient and full-wave analysis and design of the planar and non-planar feeds to the multilayer DRA, together with multiband/broadband DRA topologies.
We had also developed the full-wave analysis and design of a system of conformal loop antennas around a conducting cone considering mutual coupling. The impedance match and cross-pol characteristics were significantly improved due to the presence of the cone. A three-loop director-reflector structure based on the above configuration was also investigated.
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TLM-based modal-extraction approach for the investigation of discontinuities in the rectangular waveguide and the NRD by B. Ghosh, N.R.S. Simons, L. Shafai, A. Ittipiboon and A. Petosa IEEE Transactions on Microwave Theory and Techniques 50 2294-2304 (2002)
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Mode excitation in the microstrip slot-coupled three-layer hemispherical dielectric resonator antenna by Ghosh B., Kakade A. B. IET Microwaves, Antennas Propag. 10 1534-1540 (2016)
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Investigation of gain enhancement of electrically small antennas using double-negative, single-negative and double-positive materials by B. Ghosh, S. Ghosh and A.B. Kakade Physical Review E 78 - (2008)
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Coplanar waveguide feed to the hemispherical DRA by B. Ghosh, K. Ghosh and C.S. Panda IEEE Transactions on Antennas and Propagation 57 1566-1570 (2009)
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A loop loading technique for the miniaturization of non-planar and planar antennas by B. Ghosh, S.K. Moinul Haque, D. Mitra, and S. Ghosh IEEE Transactions on Antennas and Propagation 58 2116-2121 (2010)
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Miniaturization of slot antennas using slit and strip loading by B. Ghosh, S.K. Moinul Haque and D. Mitra IEEE Transactions on Antennas and Propagation 59 3922-3927 (2011)
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Mode excitation in the coaxial probe coupled three-layer hemispherical dielectric resonator antenna by A.B. Kakade and B. Ghosh IEEE Transactions on Antennas and Propagation 59 4463-4469 (2011)
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Analysis of arbitrary multiple-loop antennas around a conducting cone, with rotational symmetry by B. Ghosh, S.K. Moinul Haque and P. Halder IET Microwaves, Antennas and Propagation 7 111-122 (2013)
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Miniaturization of slot antennas using wire loading by B. Ghosh, S.K. Moinul Haque and N.R. Yenduri IEEE Antennas and Wireless Propagation Letters 12 488-491 (2013)
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A miniaturized ring slot antenna design with enhanced radiation characteristics by D. Mitra, B. Ghosh, A. Sarkhel and S.R. Bhadra Chaudhuri IEEE Transactions on Antennas and Propagation 64 300-305 (2016)
Principal Investigator
- Design and analysis of circular polarized DRA configurations using non planar waveguide feed Science and Engineering Research Board (SERB)
- Design of efficient wearable textile antennas Ministry of Textile, GoI
- Wideband low profile and directive antennas for vehicular communication Telecom Centres of Excellence
Ph. D. Students
Manikant Sinha
Area of Research: Efficient Antenna Design
Priyanka Deb Sinha
Area of Research: Efficient Techniques for Antenna Analysis
Teena A J
Area of Research: Design and analysis of efficient antennas
