R. L. Yadava

Work place: Department of ECE, Galgotia's College of Engineering and Technology, Greater Noida, Uttar Pradesh, India

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Research Interests: Computational Physics, Physics

Biography

Dr. R.L.Yadava, is Professor in the department of ECE, Galgotias College of Engg and
Technology, Gr. Noida, U.P. During his doctoral work he was associated with R & D
project funded by DST, Govt. of India. After receiving Ph.D. degree, he joined VIT
University, Vellore T.N, in 2001 and served as Head of Microwave Division, Coordinator
R& D and Co-ordinator (UG) of Electrical Sciences. He has also been
coordinator of M.Tech programme of U.P.Technical University, 2007-08. During his
service at VIT, he was deputed as visiting faculty to KIGALI UNIVERSITY, KIGALI
Center Africa. Dr. Yadava has organized several guest lectures, short-term training
programmes and conferences in the field of Microwaves and Antennas. His research areas includes: Waveguides, Microwaves and Microstrip Antennas. He has guided several B.Tech and M.Tech projects and ten Ph.Ds are in progress under his supervision. He has 35 publications in International/ National Journals, Conferences and Symposiums. He is associate editor of Journal of Information, Intelligence and Knowledge, USA and also the member of ISTE, SEMCE (I) and IEEE.

Author Articles
Effects of Superstrate on Electromagnetically and Gap Coupled Patch Antennas

By Ravindra Kumar Yadav Jugul Kishor R. L. Yadava

DOI: https://doi.org/10.5815/ijwmt.2014.03.03, Pub. Date: 1 Oct. 2014

In this paper the effects of water loading (termed as superstrate) on the characteristics of an electromagnetically (EM) and coupled pentagonal patch antennas operating in the ISM band have been described. The proposed antenna structures are analyzed using HFSS and the influence of the superstrate on resonant frequency, bandwidth, VSWR and radiation characteristics have also been analyzed. The obtained results also reveal that a larger bandwidth can be found in case the dielectric substrate is separated by air gap spacing. In addition, though impedance matching is little deteriorated due to loading, however the operating frequency band (BW) shifted to lower side significantly.

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