Bio
Dr. Praveen Kumar Kancherla is an Associate Professor and holds a Ph.D. in Microwave Antennas from Jawaharlal Nehru Technological University Hyderabad. His research focuses on tunable multi-layer multi-dielectric high impedance surface reflectors and beam steering of array antennas. He has authored several papers in these areas, contributing to advancements in antenna engineering. With a growing publication record and citation impact, Dr. Kancherla is actively involved in research and has supervised multiple projects.
Educational Journey
Jawaharlal Nehru Technological University Hyderabad
Ph.D / Associate Professor • Microwave Antennas
Experience
Research
Parametric Analysis of Tunable Multi Layer Multi Dielectric-High Impedance Surface Reflector
A novel Tunable Multi Layer Multi Dielectric High Impedance Surface (TMMD-HIS) Reflector is proposed and designed in Ansoft HFSS software. The structure of TMMD-HIS consists of square metal patch arrays arranged in three dimensional, connecting vias, dielectric substrates arranged in ascending order. It exhibits two important properties first one barrier to EM waves in certain band of frequencies. Second it reflects the waves with a co-efficient of +1. Some important parameters of TMMD-HIS reflectors architecture and its effect on reflection phase characteristics, operating frequency and band width is investigated and results are presented.
Beam Steering of an Array Antenna using Tunable Multi Layer Multi Dielectric-High Impedance Surface Reflector
Beam scanning have found great demand in the field of wireless communication, satellite communication, radar, etc. [1,2]. These applications are generally covered by phased array antennas [3], where several elements are grouped together in a linear or planar special configuration. The radiated beam is determined by the vector addition of the electromagnetic fields radiated by the individual elements. Present proposal a novel technique of Tunable Multi Layer Multi Dielectric High Impedance Surface (TMMD-HIS) is embedded with array antenna, making it possible to obtain a beam scanning angle of 40 degree (from -20 degree to +20 degree) without the need of expensive active components. The major advantage of proposed concept is that the array have a negligible mutual coupling between radiating element this is happen because of suppression of surface wave. In built phase shifting is provided which reduces the structure size and proportionally cost . simulated results showing the effectiveness and compatibility of proposed concept.
