Search
177 articles for “Wide Band”
-
Theoretical Study of Surface Waves in Hexagonal Boron Nitride (hBN)
Abstract: Hexagonal boron nitride (hBN) is a wide bandgap semiconductor material in which Boron (B) and Nitrogen (N) atoms form hexagonal structure and has number of robust properties of technological importance. Boron nitride nanotubes (BNNTs) are very nice area of research in recent years. Its structure is similar to carbon nanotubes (CNTs) where carbon atoms are arranged in hexagon. hBN is also known as White Graphene. Various methods are employed to …
Published in Research & Reviews : Journal of Physics · Vol. 13, Issue 1, 2024 Read article
-
ZnO Nanostructure Shape Effects in Photocatalysis of Methylene Blue
Abstract: Nowadays, dyes are used in the food industry, textile industry, paper industry, hair coloring, light-harvesting arrays, photoelectrochemical cells, etc. Most of the dyes are nonbiodegradable, toxic, carcinogenic, and consist of organic compounds. These dye wastages are discharged into water bodies and the environment causing serious hazards to the marine ecosystem as well as the humans extensively. To treat toxic dyes traditional methods such as adsorption, activated carbon, ultrafiltration, and reverse …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 722–727 Read article
-
Isolated Bidirectional Flyback Converter in EV Charging and V2G Systems: A State-of-the-Art-Review
Abstract: The growing adoption of electric vehicles (EVs) and the potential of Vehicle-to-Grid (V2G) technology underscore the importance of efficient and reliable isolated bidirectional DC-DC converters in EV charging systems. The market for electric vehicles (EVs) is expanding at an exponential rate due to the worldwide trend towards sustainable transportation, with electric mobility emerging as a crucial way to lower carbon emissions and rely less on fossil fuels. This review examines …
Published in International Journal of Electrical Power and Machine Systems · Vol. 2, Issue 2, 2024 · pp. 23–32 Read article
-
Heat Transfer Performance of ZnO- Ethylene Glycol- Water Nanofluid Using Thermal Lens Technique
Abstract: Nanofluids are engineered fluids used in advanced electronic systems for thermal management. Fluids with dispersed nanoparticles have exhibited remarkable thermal properties. Ethylene glycol (EG) and water mixtures are widely used in many industrial areas. This study investigates the synthesis and heat transfer performance of ZnO-EG, ZnO-water, and ZnO-EG-water nanofluids using a dual-beam thermal lens technique. ZnO is a widely used inorganic, UV-absorbing, multifunctional semiconducting material with applications in various fields …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 440–445 Read article
-
Exploring the Luminescent Behavior of Dysprosium-Doped Halo-sulphate Compounds
Abstract: In essence, this study aims toward understanding the photo-luminescent properties of Dy³⁺ halogenated sulfates, viz., synthesis, characterization, and luminescent behavior of the materials. Dysprosium ions are introduced into the halo-sulfate matrices to investigate their suitability for solid-state lighting applications. The aim of the study is to explain the mechanisms of the photo luminescence of Dy³⁺ and study the influence of the doping concentration on luminescence efficiency and the thermal stability …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 01–06 Read article
-
Development and Thermal-Soiling Performance Evaluation of Boron-Nitride Reinforced Polymer Nanocomposite Coatings for Solar Photovoltaic Applications
Abstract: Surface heating, dust buildup, and weakening triggered by ultraviolet (UV) light all have a vast effect on the long-term performance of solar photovoltaic (PV) modules. These issues all lower power conversion efficiency in real-world open-air circumstances. A nanocomposite coating built on fluoropolymer (FEP) that is reinforced with hexagonal boron nitride (h-BN) nanoparticles is invented by this study to enhance thermal dissipation, optical transmission, and resistance to dirt at the same …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 218–223 Read article
-
Advances in Energy Systems and Solid State Electronics
Abstract: Solid state technology has become a game changer in the field of modern electronics and energy systems providing faster, safer and more energy efficient solutions for several industries. The performance and dependability of electronic systems have been considerably improved by recent advances in solid state materials, semiconductor devices, and energy storage technologies. Progress in solid-state batteries, wide-bandgap semiconductors, and next-generation integrated circuits is transforming applications in electric vehicles, renewable energy …
Published in International Journal of Solid State Innovations & Research · Vol. 4, Issue 1, 2026 Read article
-
Design and Analysis of A Terahertz Microstrip Antenna
Abstract: Terahertz radiation is in the electromagnetic spectrum. Terahertz radiation is used for a variety of purposes since it is non-ionizing and may move in a straight line. It has some similarities with microwaves, in that terahertz radiation can penetrate non-conducting materials, but it shows less depth of penetration than microwaves. Compared to millimeter waves the capacity of Terahertz waves is large enough and possesses high data transmission rates. Terahertz radiation …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 1, 2023 · pp. 1–7 Read article
-
Recent Development in Ga2O3 MOSFETs for High Power RF Applications
Abstract: Abstract: This paper attempts to investigate the property of recently reported gallium oxide as a high power RF device by studying its related high power RF characteristics, and suggest a path to develop metal-oxide-semiconductor field effect transistor (MOSFET). Keywords: MOSFETs, Wide Band Gap Semiconductors, Gallium Oxide and RF ICsCite this ArticleNarendra Yadava, R.K Chauhan. Recent Development in Ga2O3 MOSFETs for High Power RF Applications. Journal of Semiconductor Devices and Circuits …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 1, 2019 · pp. 21–25 Read article
-
Printed Circularly Polarized P-Shaped Patch Antenna for Wireless Communication Application
Abstract: In this paper, a study of wide band partially grounded printed polarized P-shaped microstrip patch antenna design fed by microstrip feed line. This design is considered for the improvement of axial ratio bandwidth. For defecting the ground plane, a rectangular shaped plane has been etched from the upper half of the ground plane to improve the axial ratio bandwidth (ARBW) and impedance bandwidth (IBW). For the improvement of the ARBW, …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 6, Issue 1, 2019 · pp. 18–22 Read article
-
Microstrip Antenna for Hiper LAN Application
Abstract: In this article, the simulated return loss, radiation pattern and gain of the proposed antenna have been studied. The presented antenna provides wide bandwidth of 76%, covering the Frequency range from 2.505 to 5.576 GHz, which is best suitable for WLAN and Hiper LAN application. Keywords: Patch antenna, Hiper LAN, efficiency, bandwidthCite this Article Niraj Kumar Sharma, Suryansh Chaudhary, Vinod Kumar Singh. Microstrip Antenna for Hiper LAN Application. Journal of …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 22–25 Read article
-
A Compact Pellet Drum Shape Microstrip Patch Antenna
Abstract: This paper consists of microstrip patch antenna designed with coaxial feed technique. The antenna is mainly anticipated to be used for UMTS wireless applications. The results illustrate that wide bandwidth of 33.26% is obtained covering the frequency range from 2.03 to 2.84 GHz. Next, the characteristics of the designed structure are investigated by using MoM based electromagnetic solver, IE3d. Finally, a broad analysis of the return loss, radiation pattern and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 3, 2016 · pp. 10–14 Read article
-
Pellet Drum Microstrip Patch Antenna for UMTS Application
Abstract: This paper consists of microstrip patch antenna designed with coaxial feed technique. The antenna is mainly anticipated to be used for UMTS wireless applications. The results illustrate that wide bandwidth of 33.26% is obtained covering the frequency range from 2.03 to 2.84 GHz. Next, the characteristics of the designed structure are investigated by using MoM based electromagnetic solver, IE3d. Finally, a broad analysis of the return loss, radiation pattern and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 1, 2017 · pp. 24–28 Read article
-
Photo-Assisted Room Temperature Synthesis of Brightly Fluoresce ZnSe Quantum Dots in Aqueous Medium
Abstract: The ZnSe quantum dots (QDs) have gained considerable research interest as an alternative to heavy-metal-based QDs and are non-toxic, have strong emission in UV-blue region, and with wider band gap are suitable for doping various ions to tune their optical and electronics properties. For biological applications, aqueous stability of QDs is an indispensable prerequisite. Mercapto-carboxylic acids such as mercaptopropionic acids (MPA), thioglycolic acids (TGA), etc., are commonly used for providing …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 2, 2014 · pp. 5–13 Read article
-
Synthesis, Characterization and Photocatalytic Activity of Bismuth Doped Titanium Dioxide under Different Light Sources
Abstract: 800x600 Photocatalysis is a recognized approach where light energy is employed to excite the semiconductor material and produce electron-hole pairs. These electron-hole pairs eventually involves in the detoxification of pollutants (in air or water) & water splitting. TiO2 photocatalyst shows poor activity in visible light due to its wide band gap (3.2 eV), which restricts its use under Sun light. In the present work, photocatalytic activity of TiO2 was enhanced …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 3, 2014 · pp. 23–31 Read article
-
Beveled Shaped Filtenna for Ultra Wideband Applications
Abstract: AbstractA compact microstrip line fed beveled shaped filtenna is presented for ultra-wideband application. It is intended to work in the frequency range of 3.10 to 11.75 GHz and having the size of 30.5× 25×1.6 mm3. The filtenna consists of a modified three resonators based band pass filter integrated into the feed line of the modified antenna. In addition to this, a modified semicircular like the ground plane is also present. …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 3, 2018 · pp. 1–10 Read article
-
A Dipole Circular Patch Antenna for Operation in the X-Band
Abstract: This microwave engineering research paper proposes, designs, calculates, and simulates a novel dipole circular patch antenna for theoretical wideband operations in the X-band (the 8 GHz to 12 GHz frequency range). This proposed microstrip patch antenna was realized using FR-4 as a dielectric (a thickness of 1.5 mm) with copper being used in both the ground plate and the two transmitting circular elements (the so-called patches with a thickness of …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 2, 2021 · pp. 1–8 Read article
-
Textile Antenna with Partial Ground for Multiband Applications
Abstract: AbstractIn this article, the dominant textile antenna is presented. The proposed antenna has various applications like satellite communication, military and medical applications. The proposed antenna gives dual frequency bands with bandwidth from 8.96 to 14.456 GHz with 46.73% and second band from 14.98 to 17.46 GHz with 15.289. The intended textile antenna is applicable for wireless communication systems as it has wide dual bandwidth and high directivity of 6.379 dBi.Keywords: …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 3, 2017 · pp. 15–18 Read article
-
Complex Permittivity of Dielectric Substrate Measurements Using Ring Resonator
Abstract: In this paper, we are going to present a methodology which is more suitable and easy to measure complex permittivity of dielectric substrates using ring resonator of a planar circuits. Mainly it is based on the transmission type ring resonator with capacity coupling. On adjusting base resonant frequency of a ring resonator we can measure the dielectric constant and dissipation factor at wide frequency band and the remaining parameters can …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 9–12 Read article
-
Performance Improvement of Nano Field Effect Transistor Based on Zinc Oxide Semiconducting Materials – a Critical Analysis
Abstract: New semiconductor materials and new shapes for contemporary nanostructured semiconductor devices, like nanowires, have been researched as a result of advancements in transistor technology. Because of their unique electrical, photonic, and sensing capabilities, nanowires (NWs) constructed of various semiconductor material systems (gallium arsenide, zinc oxide, etc.) have been the subject of intense research over the past 20 years. Due to its distinctive properties, including high electron mobility, high crystalline quality, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 99–107 Read article