A5101498452- Antenna Design and Analysis
- Energy Harvesting in Wireless Networks
- Semiconductor Lasers and Optical Devices
- Acoustic Wave Resonator Technologies
- Advanced MIMO Systems Optimization
- Optical Wireless Communication Technologies
- Ultrasonics and Acoustic Wave Propagation
- Photonic and Optical Devices
- Innovative Energy Harvesting Technologies
- Energy, Environment, and Transportation Policies
- Optical and Acousto-Optic Technologies
- Advanced Antenna and Metasurface Technologies
- Optical Polarization and Ellipsometry
- Wireless Body Area Networks
- Bluetooth and Wireless Communication Technologies
- Sensor Technology and Measurement Systems
- Parallel Computing and Optimization Techniques
- Geotechnical and Geomechanical Engineering
- Thermal properties of materials
- Advanced MRI Techniques and Applications
- Electric Vehicles and Infrastructure
- Transportation and Mobility Innovations
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photonic Communication Systems
Indian Institute of Technology Roorkee
2025
Indian Institute of Technology Delhi
1976-2025
National Institute of Technology Hamirpur
2023
Indian Institute of Technology Indore
1977
This paper presents a practical two-ray model which accurately characterize the receiver power compared to conventional for wireless communication and transfer applications. The proposed considers impact of polarization orientations line sight (LOS) non-line (NLOS) components, complex permittivity reflecting surface. On observing received various different environmental settings (different source heights, transmission distance reflector permittivity), it becomes apparent that best suited...
Distributed beamforming is a promising technique for transferring power to node wirelessly, as it allows optimal design of waveforms at each transmitter such that they interact constructively the receiver node. In this paper, we propose distributed RF scheme which involves phase detection and prediction sources participating in process. The proposed method capable tracking source drifts statistical fluctuations channel. process requires one feedback synchronizing all pairs provides...
In this letter, we propose the concept of distributed optical beamforming and its feasibility requirements. We quantify importance polarization among beams for maximized beamforming. As a first step towards (DPolB), in work consider coplanar sources receiver demonstrate critical requirement alignment gain. determine theoretically verify via simulations optimal angle at such that electromagnetic waves interfere constructively receiver. Subsequently, novel method automated multiple independent...
This paper proposes corner triangles with cloud shape DGS to enhance the parameters of modified coaxial feed rectangular patch antenna (RPA). An resonating at 2.40 GHz without defected ground structure (DGS) was designed for reference. On introduction in reference antenna, it found be 2.25 GHz. Comparison and incorporation carried out has been presented paper. A along corners just beneath its periodic structures etched from plane. Hence, an improvement peak gain by 18.27%, increase bandwidth...
This paper focuses on the selection of an optimum piezoelectric material for use in a piezoelectric-pressure sensor that finds application wrist pulse acquisition systems. The is made using one widely used MCDM (multi criteria decision making) techniques namely, TOPSIS. properties, like, young's modulus, relative permittivity, coefficient, electromechanical coupling, have been considered enhancing output given pressure. Properties coefficient and coupling more weightage to achieve better sensitivity.
This paper presents a CPW (co-planar waveguide) antenna based on an EBG (electromagnetic bandgap) and FSS (frequency selective surface) design operating at 2.4GHz frequency for WBAN (Wireless Body Area Network) applications. The proposed system includes CPW-fed incorporated with 2x2 EBG-FSS array which reduces the backward radiation, overcomes omnidirectional pattern of alone, improves efficiency. dimensions complete are 65x65x2.4 mm3. study is analyzed using Ansys HFSS software. along...
On montre que l'application d'un gradient exteme de température à travers les matériaux dont la constante diélectrique est fonction d'une contrainte peut aboutir l'amplification onde acoustique même quand vitesse des électrons inférieure du son.Abstract.2014 It is shown that the application of an external temperature across materials with strain dependent dielectric constant can lead to amplify acoustic wave even when drift velocity electrons less than sound.