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153 articles for “Ku-band”
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Ab Initio Investigation on Half-Heusler Compounds CoVZ (Z = P, Bi, Sb, As): Understanding Structural, Electronic, Magnetic, and Elastic Behavior
Abstract: The structural, electrical, mechanical, and magnetic properties of Half-Heusler CoVZ (Z= P, Bi, Sb, and As) compounds have been studied using the ab initio method. Here, we use the full potential linearized augmented plane wave (FP-LAPW) method, which is implemented by WIEN2k. The compounds CoVZ (Z= P, Bi, Sb, and As) are near to the Fermi level as implemented in the WIEN2k algorithm, exhibiting 100% spin polarization with finite band …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 3, 2023 Read article
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A Hybrid voice identification System with Fuzzy Technique and ART2 Neural Network on BPF Technique
Abstract: Abstract:In this work, we evaluate the performance of voice identification through the hybrid method using fuzzy and Adaptive Resonance Theory2. The Voice identification is an important task, which shows the active interaction of natural human-machine, for over last important two decades. The objective of this work, it is consists in working out an identification rate of voice identification. The proposed methodology presented allows evaluating the identification process which considers a …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 1–6 Read article
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CPW-fed Dual Sense Slot Antenna for Circular Polarization
Abstract: A novel compact dual-band and dual-sense circularly polarized coplanar waveguide (CPW) fed rectangular slot antenna is proposed. Dual-band and dual-sense is realized by a proper choice of the L-shape feed line and two parasitic elements inside the slot. A prototype dual-sense antenna is fabricated. The antenna has a compact size of 63.5×55mm2. Measured 3dB axial ratio bandwidth of the lower band with right hand circular polarization (RHCP) is 26.32% (1.435GHz …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 1, 2021 · pp. 17–24 Read article
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A Compact Design of Dual Band Micro Strip Antenna for WLAN/WiMax Applications
Abstract: In this paper compact dual wide band micro strip antenna has been designed with line feed technique. The return loss bandwidth achieved is 12.34% (1.398–1.582) GHz and 21.56% (2.395–2.974) GHz with a maximum return loss –44.89 dB at resonant frequency 2.656 GHz by using Zeland IE3D software. The fabricated line feed patch antenna is tested and measured by using spectrum analyzer.
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 1–6 Read article
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Study on EBG Structures and Application in UWB Band Pass Filter
Abstract: EBG automation has turn into important development in the field of microwave and RF because of its exclusive band gap attribute at convinced frequency areas. The survey of this paper shows various EBG structure and its operations in tract with microstrip antenna and filters along with EBG structure is planned to procure solid UWB band pass filter. The counterfeit is performed by Agilent ADS software.
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 5–8 Read article
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Bio Materials and Nanotechnology: Green Tea (Waste)– Aluminium Nanoparticles (Gt-Al Nps) For Methylene Blue Adsorption
Abstract: This study examines the adsorption of Methylene Blue (MB) dye from aqueous solutions using Aluminium Nanoparticles synthesized with green tea powder as a biological reducing agent. Methylene Blue, an aromatic phenothiazine dye, is widely applied in medical diagnostics and various industrial processes, but its uncontrolled release into water bodies leads to environmental pollution due to its intense colour, stability, and potential toxicity. Therefore, identifying an efficient and eco-friendly adsorbent for …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 96–107 Read article
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Characterization studies on surface activation of phosphor bronze wire mesh via different chemical means for water distillation applications
Abstract: Surface activation of phosphor bronze structured packing modules is an important step in the manufacturing of high efficiency water distillation columns as it ensures excellent mass transfer behaviour and overall process intensification. These packed columns are used in the nuclear industry for heavy water production and purification. Activation is generally achieved through a treatment involving aqueous NaOH solution with bubbling of oxygen gas through it. This leads to the development …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 10–23 Read article
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Design of Microstrip Stepped Impedance Low Pass Filter for S-Band Application Using Insertion Loss Method
Abstract: Day by day the requirement of microstrip filter is increasing because of their size, low cost and narrow bandwidth .this paper elaborates the design of stepped impedance LPF by using insertion loss method using Richard’s transformation and Kuroda’s identities. Filter works at 2.65 GHz; the used material is FR4 lossy with dielectric constant 4.3 with a substrate thickness of 1.6 mm for n=3. The designing is done with the help …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 1, 2016 · pp. 1–5 Read article
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Drug Screening Using Stem Cell Technology
Abstract: Stem cell technology in drug screening has transformed the research and development sector of pharmaceuticals. Although stem cells imitate their human counterparts in terms of both safety and potential, it is a new paradigm for mimicking diseases of humans and scale measuring for toxicity. These tissues will, therefore, be more predictive of what will happen in humans during clinical situations, compared to conventional cell lines or animal models, since they …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 12, Issue 3, 2025 · pp. 42–51 Read article
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Predicting Dielectric Constants of Polymers Using Molecular Structural Descriptors and Explainable Machine Learning: A Data-Driven Approach
Abstract: Accurate prediction of dielectric constants in polymeric materials is fundamental to the rational design of advanced electronic components, energy storage capacitors, flexible substrates, and high-frequency communication circuits. Conventional approaches to identifying suitable polymer dielectrics rely on extensive experimental synthesis and characterisation, which are both time-consuming and resource-intensive. In this work, an explainable machine learning framework is developed to predict the dielectric constant of polymers directly from molecular structural descriptors derived …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 297–304 Read article
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Wi-Fi Shaped Quad-band Microstrip Antenna for RF Energy Harvesting Applications
Abstract: AbstractIn this paper, author proposed a Wi-Fi shaped microstrip antenna for the RF energy harvesting applications. The proposed antenna is operating at the frequencies 0.9, 1.7, 1.9 & 2.4 GHz. The antenna radiates at the quad-band frequency having an application in GSM Band and Wi-Fi Bands. The antenna consists of four different strips which correspond to each frequency in the result. The co-axial probe is connected from the side of …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 3, 2018 · pp. 11–19 Read article
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A Slotted Fabric Antenna for Broad Band Application
Abstract: This article is presented a compact slotted textile patch antenna for broadband applications. The presented antenna is designed on textile substrate with dielectric constant of 1.7 and the anticipated antenna is compact size. It has been simulated using CST too and measurement is done with network analyzer. It covers a bandwidth of 6.45 GHz extending from 2.85 GHz to 9.30 GHz. It has maximum directivity of 2.932 dBi. The measured …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 2, 2017 · pp. 10–14 Read article
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Estimation of Dolomite Resources in South Central Part of Anantapur District, Andhra Pradesh, India, Using Geospatial Techniques
Abstract: Dolomite CaMg (Co3)2, is the common rock forming mineral and composed of the carbonates of calcium and magnesium with an equivalent proportion. Dolomite is the primary integral of the sedimentary rock called dolostone and the metamorphic rock called as dolomitic marble. Our method is allowing to confidently determine the location and their boundaries of local geological structures that are likely to contain dolomite resources in the study area of Anantapur, …
Published in Journal of Remote Sensing & GIS Read article
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Study of Bandwidth Enhancement of an S-band Microstrip Slot Antenna
Abstract: AbstractRelative study of rectangular patch, U-slot patch and E-slot patch antenna is conferred in this paper. The operating frequency is selected from S-band (2 GHz–4 GHz) which is relevant for Industrial science and medical (ISM) band, Bluetooth communication as well as wireless land area network (WLAN). High-frequency structure simulator (HFSS) software is used to investigate the results of the antennas. Microstrip patch antenna (MSPA) experience low Gain and narrow bandwidth. …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 3, 2019 · pp. 23–30 Read article
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Adsorptive Removal of Rhodamine-B Using Eco- Synthesized Green Tea–Aluminium Nanoparticles
Abstract: This study examines the use of Green Tea–Aluminium Nanoparticles (GT-Al NPs), a unique and eco-friendly adsorbent, to remove the dangerous Rhodamine-B dye from water. For characterisation, SEM, FTIR, TGA, and EDX were employed. We evaluated the effects of pH, temperature, dosage, contact time, and initial dye concentration on adsorption efficiency. First- and second-order pseudo models were used to characterize adsorption kinetics, and the Langmuir model explained equilibrium, as well as …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 3, 2025 · pp. 61–72 Read article
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Dual Band Rectenna for Energy Harvesting and Wireless Power Transfer
Abstract: In this paper, anticipated antenna for energy harvesting has been studied with high directivity, high gain and good return loss. The simulation of the proposed antenna was carried using IE3Dsoftware. The presented antenna is fit for wireless power transfer at resonant frequency 2.7 and 4.75 GHz. The microstrip antenna design is very compact which is made of glass epoxy having dielectric constant of 4.4.Keywords: Microstrip patch antenna, return lossCite this …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 3, 2017 · pp. 1–4 Read article
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Microstrip Textile Antenna for S-band Applications
Abstract: In this article, the proposed textile antenna has been studied with better results, high directivity, high gain, good return loss and multiple bands are obtained for wide range of applications in S-band with multiple bands. The substrate material of the proposed antenna is a jean which is a flexible material, the patch and partial ground plane is of copper. There is a modification in proposed textile antenna design with the …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 2, 2017 · pp. 27–31 Read article
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Enhancement in RMPA Parameters using Slotted Rhombus Connected Square Shaped Antenna with Left Handed Metamaterial
Abstract: In this paper, rectangular microstrip patch antenna (RMPA) along with metamaterial which has design of “slotted rhombus connected with rectangular shaped cover structure” is proposed at height of 3.2 mm from the ground plane. The RMPA with proposed metamaterial structure is designed to resonate at 2.7 GHz frequency. This work is mainly focused on increasing the potential parameters of microstrip patch antenna. Proposed metamaterial design structure significantly reduces the return …
Published in Journal of VLSI Design Tools and Technology · Vol. 7, Issue 1, 2017 · pp. 49–54 Read article
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Impact of Salinity Ingression Prevention Structures (Bandharas) on Different Landuse Categories in Abdasa Taluka of Kachchh Region, Gujarat-India
Abstract: Kachchh has a coastline of 406 km that faces various problems due to the salinity ingression and some developmental initiatives like ports, industries, etc. To check salinity ingression in the adjacent land of coastal areas, Government of Gujarat has taken some corrective measures in which construction of bandharas is one such attempt to prevent ingress of salinity along the coastal belt of Kachchh. For this activity, the government has invested …
Published in Recent Trends in Civil Engineering & Technology · Vol. 3, Issue 2, 2013 · pp. 49–61 Read article
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Effects of Variation of Injection Current on Characteristics of a 1550 nm Semiconductor Laser
Abstract: AbstractThis work represents the prototype of both the analytical and the simulation based study on high speed communication system particularly high speed data transmission through optical fiber using 1550 nm InGaAsP/InP laser. In recent years, Vertical Cavity Surface Emitting Lasers (VCSELs) are prerequisites for future ultrahigh data-rate systems. This paper represents an overview on high speed performance of the 1550 nm VCSEL. Using MATLAB simulation tool the characteristics of the …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 2, 2013 · pp. 1–6 Read article