Sudhanshu Verma

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Keratin has gained much attention in the recent past as a biomaterial for wound healing owing to its biocompatibility, biodegradability, intrinsic biological activity and presence of cellular binding motifs. In this paper, a novel biomimetic scaffold containing keratin, chitosan and gelatin was prepared by freeze drying method. The prepared keratin(More)
Rapid development in wireless communication systems and an increase in the number of users of wireless devices is bound to result in spectrum shortage in the near future. The concept of Cognitive radio is envisaged to be a paradigm of new methodologies for achieving performance enhanced radio communication system through an efficient utilization of(More)
Low profile features of microstrip antennas attract many researchers to investigate the performance of these antennas in various ways. Generation of multiband characteristic takes place when an antenna is introduced with some geometrical distortions i. e. fractal which is then used to increase data rates of communication system. Generally, an antenna tends(More)
Branch line coupler with dual band is proposed with combination of Pi and T stub lines for Global Positioning System (GPS) (1.2276 and 1.5754 GHz) and satellite applications (3.7 – 4.2 GHz). Some degree of freedom is used to provide flexibility in choosing the different characteristic impedances and electrical lengths for desirable frequency ratio.(More)
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