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177 articles for “Wide Band”
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Bandwidth and Return Loss Enhancement in Patch Antenna by Meta Material using at 2.62 GHz
Abstract: In this work, a rectangular micro strip patch antenna (RMPA) loaded with “Symmetric square Shapes Four Segments with circular rings structure” metamaterial structure is designed at a height 3.2 mm from ground plane by using CST-MWS software. The resonance frequency of the designed antenna is 2.62 GHz. The 10 dB impedance bandwidth of proposed antenna is increased up to 78.3 MHz. The return loss of the proposed antenna reduced to …
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 33–37 Read article
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Effect of Image Band Number and Band Multicollinearity on Mapping Accuracy of Tree Diversity and Evenness
Abstract: 800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Satellite imageries are increasingly being used in the studies of plant diversity due to cost effective wider spatial coverage. Multispectral or hyperspectral imageries consist of different spectral bands where some bands might be multicollineared among them and deemed redundant to use in the classification/analysis. This study investigates how the accuracies of maps of tree diversity and evenness of an area …
Published in Journal of Remote Sensing & GIS · Vol. 4, Issue 2, 2013 · pp. 14–22 Read article
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Design Of Multi-Bit Chipless RFID Tag Using Hybrid Resonator For Retail And Healthcare Applications
Abstract: Resonators play a very important role in chipless radio frequency identification (RFID) systems. To overcome the challenges like cost, compact dimension, and high coding capacity, chipless transponders are highly facilitated for the advancement in chipless RFID technology. This research aims to investigate innovative design options for passive RFID transponders operating in a wide range of frequencies in order to address the aforementioned issues and contribute to RFID technology advancement. To …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 2, 2021 · pp. 35–43 Read article
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Adaptive Hysteresis Band Current Controller for the Shunt Active Power Filter Using the d-q0 Reference Frame Theory
Abstract: Recent wide spread applications of power electronic equipment has caused an increase of the harmonic disturbances in the power systems. The nonlinear loads draw harmonic and reactive power components of current from AC mains. Here an adaptive hysteresis band current controlled shunt active power filter is presented to eliminate harmonics and to compensate the reactive power of three-phase rectifier. This current controller changes the hysteresis bandwidth according to modulation frequency, …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 2, 2020 · pp. 1–7 Read article
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AOD Retrieval Over Different LULC Features Using AWiFS Data—A Case Study Over Dehradun
Abstract: In this study, an attempt is made to estimate the Aerosol Optical Depth (AOD) using a physically based radiative transfer model i.e. SMART (Simple Model for Atmospheric Radiative Transfer) over different LULC features. The forward procedure requires the data from Band B2: 0.52-0.59 μm of Resourcesat-2 Advanced Wide Field Sensor (AWiFS). While some of the atmospheric parameters, through transmittance, spherical albedo have been parameterized, few of them are utilized from …
Published in Journal of Remote Sensing & GIS · Vol. 8, Issue 2, 2017 · pp. 54–57 Read article
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Wideband Ring Dielectric Resonator Antenna Using C Shaped Parasitic Elements
Abstract: Abstract: This paper presents a Ring Dielectric Resonator Antenna for wideband applications. Ring DRA is excited by annular shaped microstrip feedline. Bandwidth enhancement is achieved by adding the C-shaped parasitic elements on both sides of ring dielectric resonator antenna and removing the central part of a cylindrical DRA to form ring DRA. The operating frequency of proposed DRA lies between 2.054–6.5 GHz. Gain and Radiation efficiency of this proposed antenna …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 6, Issue 1, 2019 · pp. 32–37 Read article
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Role of Hot-Injection Technique for the Synthesis of Phase-Pure Kesterite CZTS Nanocrystals for Biosensing Applications
Abstract: Main Focus in this present work, is biosensing application of CZTS nanoparticle instead of established and mainstream photovoltaics application. Here, biocompatible CZTS have been synthesized using butylamine. The capping effect has been explored in two ways first, post synthesis ligand exchange from TOPO-capped CZTS (Ex-situ) and during synthesis (In-situ). The sample obtained after ex-situ ligand exchange was analysed for its stability using x-ray diffraction method (XRD), transmission electron microscopy (TEM) …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 20, Issue 3, 2018 · pp. 6–12 Read article
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A Dynamic Text Compression Model for Big Data Applications Using Hadoop
Abstract: In today’s data-driven era, efficiently handling vast amounts of information has become increasingly important. Data compression plays a vital role in this regard — it is essentially a method of encoding information in such a way that significantly reduces the number of bits required to store or transmit a file. By shrinking data to its most compact form, compression techniques help save storage space, reduce bandwidth consumption, and improve the …
Published in International Journal of Algorithms Design and Analysis Review · Vol. 4, Issue 2, 2026 Read article
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Estimation of Damping Loss Factor for Composite plates by using Half Power Bandwidth Method
Abstract: For the prediction of transmission of sound and vibration through complex structural systems, Statistical Energy Analysis method is widely used. These complex subsystems are generally divided in to simple subsystems. The prediction of transmission of sound and vibration through complex structures or systems depends on three parameters viz. damping loss factors, coupling loss factors and the, modal densities between subsystems. The damping loss factor relates to the power dissipated in …
Published in Trends in Machine design · Vol. 2, Issue 2, 2015 · pp. 26–30 Read article
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A Novel CPW-Fed Triangular Fractal Antenna with Round Corners for UWB applications
Abstract: This paper presents a novel CPW(coplanar waveguide)-fed triangular fractal antenna with round corners for UWB(ultra wideband) applications. The overall size of the proposed antenna is 20×23×1.6 mm3. The impedance bandwidth of the antenna is effectively improved by adding fractal elements at the edges. Also, rounding corners of triangular fractal antenna leads to an improvement in impedance bandwidth. And the impedance bandwidth is enhanced by adding triangular strips on two ground …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 3, 2023 · pp. 1–7 Read article
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Performance Evaluation of First and Second-order Incremental A/D Converters
Abstract: This paper presents the design of first and second-order incremental analog-to-digital converters (ADCs). The characteristics of converters are extremely wide from Giga samples to a few samples per second for bandwidth and resolution variation from a few bits to more than 20 bits. Delta sigma converters are most commonly used high-resolution A/D converters. In instrumentation and measurement applications, the continuous operation, the large offset and inaccurate gain of delta-sigma does …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 3, 2013 · pp. 14–18 Read article
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To compare the effectiveness of the dry needling Versus instrumented assisted soft tisse mobilization Technique on scapular dyskinesia in college students with trapezitis – a comparative study
Abstract: Background: Scapular dyskinesis, a term denoting dysfunctional movement of the scapula, often involves the upper trapezius (UT) muscle, which is frequently affected by myofascial trigger points (MTrPs). Common symptoms associated with MTrPs in the UT muscle include tense and painful muscles, tension headaches, neck pain, dizziness or vertigo, and restricted range of motion in the neck and shoulder. Dry needling, a technique used to address MTrPs, targets localized hypersensitive spots …
Published in Research and Reviews: A Journal of Medicine · Vol. 13, Issue 3, 2023 · pp. 24–38 Read article
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Enhancement of Gain & Bandwidth Microstrip Rectidollar Patch Array Antenna for Satellite Applications
Abstract: Over few decennary there is fastest growth in the field of satellite communication and it has its wide application in this field. There is many variety of antennas which can be used for satellite applications and the preference is given to microstrip antennas because of its merits and applications. This research includes the designing of a rectidollar patch array. In this the feeding given is microstrip feeding. The whole desigining …
Published in Recent Trends in Parallel Computing · Vol. 5, Issue 2, 2018 · pp. 25–30 Read article
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Modeling Galaxy Formation in a Hierarchical Universe: A Fiducial Approach and Comparison with Observational Data
Abstract: We have developed a detailed model to understand how galaxies form in the framework of hierarchical theories of structure formation. Our model accounts for key processes like the formation and merging of dark matter halos, the heating and cooling of gas inside these halos, the regulation of star formation driven by energy from evolving stars and supernovae, galaxy mergers, and the changes in star populations over time. This approach is …
Published in International Journal of Universe · Vol. 1, Issue 1, 2025 · pp. 30–36 Read article
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Solar Energy Conversion System with Maximum Power Point Tracking
Abstract: AbstractThis paper presents an algorithm that help to track the maximum power point of the solar PV module automatically. Perturb and observe algorithm is most popular algorithm. In this algorithm a slight perturbation is introduced. Due to this perturbation, the power of the module changes. If the power increases due to perturbation then the perturbation is continued in that direction. After the peak power is reached the power at the …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 3, 2018 · pp. 15–20 Read article
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A Hexagonal Sierpinski Gasket Antenna with a Microstrip Feed Line and a Stub for UWB Applications
Abstract: In this paper a Sierpinski gasket hexagonal antenna is proposed with a feed line having a stub attached to it. Three iterations of the proposed antenna geometry were done and with this improved feeding technique for four resonant bands of operation from 2.86 to 3.3 GHz, 3.758–4.313 GHz, 7.514–8.5468 GHz and 12.352–10.976 GHz were obtained. The antenna is suitable for ultra wideband (UWB) and radiolocation applications. The proposed antenna was …
Published in Journal of Electronic Design Technology · Vol. 6, Issue 1, 2015 · pp. 14–18 Read article
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A Survey of Online Learning Algorithm
Abstract: Online learning is an active research area, which emerges in the last decade and has been considered as a subset of machine learning. Although, there is limited advancements has been made due to its high processing environment ultimately delaying its real-time applicability. In this study, we studied the various techniques with which the online learning algorithms have been able to successfully embark the results over the World Wide Web. It …
Published in Recent Trends in Parallel Computing · Vol. 2, Issue 1, 2015 · pp. 6–9 Read article
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Developments of Fiber-reinforced Plastics
Abstract: This article is a description of fiber-reinforced plastic to subject composite, where individual constitutions have been reinforced to develop better properties than individual materials. Fiber-reinforced composite materials are alternatives over solitary metals or alloys in terms of strength, stiffness, density, and low cost with improved sustenance. Differential behavior from composited formation has functionally upgraded after usage from the equivalent differential proportion of filler added. Or add-in addendum has been implicated …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 2, 2021 · pp. 1–9 Read article
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Review and Analyze Low Cross Polarized Feed for Offset Parabolic Reflector Antenna for S-Band Application
Abstract: This study discusses the design of low cross polarized feed for offset parabolic reflector antenna and its application. Conical corrugated horn antenna consists of an input mode TE11 and the corrugation part requires a transition to HE11 mode for propagation. The paper presents the widely used design of TE11-HE11 mode converter i.e. Variable slot mode converter. Three different design of corrugated horn antenna is presented for optimizing the value of …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 30–36 Read article
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Structural and Optical Studies of Baso4:Eu2+ Phosphor Prepared by Co-Precipitation Method
Abstract: Europium doped BaSO4 was prepared by the co-precipitation method and characterization of material was done by using X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR) techniques. From the XRD pattern of Eu doped BaSO4 compound, it was found that the prominent phase formed was BaSO4 and the result of FTIR spectrum of BaSO4:Eu shows that the sulfur-oxygen stretch was found at around 1116 cm-1. The room …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 1, 2017 · pp. 1–9 Read article