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72 articles for “RF”
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Charger Using Electromagnetic Radiation (EMR)
Abstract: All cell phones emit some amount of electromagnetic radiation (EMR). The radiation can even be converted into some amount of energy, which can be directly fed to the charger. This paper outlines the concept of converting EMR into power. So that it eliminates an external plug for charging. This is a convenient way of charging a mobile phone. For these purpose meta-surfaces, passive RFID tags can be used. Keywords: electromagnetic …
Published in International Journal of Analog Integrated Circuits · Vol. 1, Issue 2, 2015 · pp. 34–37 Read article
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Transforming Transactions: The Evolution of Vending Machines through IoT
Abstract: The purpose of this study is to suggest a practical implementation for developing an Internet of Things (IoT) vending machine system. Additionally, we present a novel method for mobile proximity payment at unattended point of sale. The fundamental concept involves creating a virtual version of a vending machine on the Internet and enabling complete contactless product ordering from a smartphone, so no physical interaction with the machine is required. Our …
Published in International Journal of Analog Integrated Circuits · Vol. 9, Issue 2, 2023 · pp. 12–15 Read article
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Review Paper on Load Sensing Seat with Light and Fan Control
Abstract: ABSTRACTThe Project ‘Load Sensing Seat with Light and Fan Control using ATmega8 microcontroller'. We use two parts in this project includes Load cell and ATmega8 microcontroller. A load cell is used to control a fan using the ATmega8 microcontroller. Load cell that is embedded into seats to detect if the human is sitting on it. The load cell will give the signal to the hx711 load cell amplifier which gives …
Published in International Journal of Digital Communication and Analog Signals · Vol. 6, Issue 1, 2020 Read article
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Design & Simulation of LNA in 90nm CMOS Technology for Radio Receiver using the Cadence Simulation Tool
Abstract: Due to its successful operation in the 2.4 GHz frequency region, often known as the ISM (Industrial, Scientific, and Medical) band, RFICs play a vital role in communication systems. The major parts being used transceivers for frequency translation & amplification are LNA and Mixers. Different types of mixers and LNAs are employed, and different strategies are used to optimize them. In this paper an approach for design and simulation of …
Published in International Journal of Digital Communication and Analog Signals · Vol. 8, Issue 1, 2022 · pp. 1–9 Read article
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Automatic Door Lock System with Security using IoT
Abstract: Smart door locking systems have become more sophisticated as technology has advanced. Though an automatic password-based door lock system provides a more secure method of locking and unlocking the system, because of the ongoing Covid situation, it is extremely dangerous to touch the keypads, which are frequently used by different people. Hence, in this project we use RFID tags and Arduino. The RFID card reader detects and validates the user's …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 7, Issue 2, 2021 · pp. 33–39 Read article
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A Simple Method for Estimation of Surface Transfer Impedance of Coaxial Cables as Per MIL STD 1377 for EMC Qualification
Abstract: In recent years, electromagnetic compatibility (EMC) problems associated with high frequency and high speed inter connects are becoming of increasing concern. Coaxial cables are a popular form of inter connect between intra- and intersystems and subsystems. Transfer impedance is a measure for assessing the shielding effectiveness of outer shield of a coaxial cable. In this paper, we proposed an easy and inexpensive method for estimating the surface transfer impedance (STI) …
Published in International Journal of Microwave Engineering and Technology · Vol. 2, Issue 1, 2016 · pp. 31–38 Read article
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A Wide Band and High Bandwidth Microstrip Patch Antenna for WLAN Applications
Abstract: ABSTRACTThe patch antenna is one of the most important and usually type of RF antenna. It is widely used on its own, and it is also incorporated into lots of different RF antenna layout where it forms the driven elements for the antenna. In this paper, an attempt has been made to analyse a proposed broad band and high band width microstrip patch antenna for WLAN applications. The proposed antenna …
Published in International Journal of Microwave Engineering and Technology · Vol. 6, Issue 1, 2020 · pp. 14–17 Read article
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Effects of Introducing Slots in Rectenna
Abstract: Wireless power is turning out to be a promising technology in near future. This would not only be an alternative to batteries and wired supply, but also protect our environment from the harmful effects of batteries. In this paper analysis of introducing slots in the rectenna is studied. An experimental RF energy harvesting system to transmit wireless powers using microwaves is designed and then effects of slot loading on the …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 32–38 Read article
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Review on Internet of Things
Abstract: The area unit coming into in an exceedingly new era of computing technology, i.e., Internet of things (IoT). IoT could be a variety of “universal international neural network” within the cloud that connects different types of things. The IoT is wisely connected Objects that consist of smart machines connecting and communicating with each other machines, environments, objects and infrastructures and the Radio Frequency Identification (RFID), and network technologies can rise …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 4, Issue 2, 2018 · pp. 20–22 Read article
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Controlled Texture of Magnetron Sputtered Transparent Conducting ZnO: Al Films for Solar Cell Applications
Abstract: Textured transparent and conducting ZnO:Al films were prepared by rf-magnetron sputtering on glass substrate at a temperature 3500C under Ar and Ar+O2 gas ambient. ZnO:Al thin films shows a minimum electrical resistivity of (~8.210-4 Ω-cm), and high optical transmittance (T~86–90% average) in visible region. With increasing of oxygen concentration ZnO:Al films become more compact, stoichiometric and becomes more electrically resistive. ZnO:Al shows hexagonal wurtzite polycrystalline structure with strong (002) orientations. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 1, Issue 2, 2015 · pp. 12–19 Read article
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Speech Emotion Recognition using Multi- Kernel CNN for Features extraction and Random Forest Classifier
Abstract: Identifying human emotional states from speech signals is the main goal of Speech Emotion Recognition (SER), which has grown to be a significant area of study in affective computing. However, class imbalance and efficient feature extraction from speech data pose problems for many of the current methods. This study suggests a hybrid framework that combines a Random Forest (RF) classifier with a multi-kernel Convolutional Neural Network (CNN) to address these …
Published in International Journal of Digital Communication and Analog Signals · Vol. 12, Issue 2, 2026 Read article
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Microbial Production of Lipase Enzyme Using StrainCandida tropicalis and Its Application inBioscouring and Biodiesel
Abstract: The growing interest in lipase production is driven by the potential biotechnological applications. In present study lipase producing enzyme using strain Candida tropicalis isolates by using tributyrin agar plate method and confirmation on sprit blue agar which showed the positive result via a zone of hydrolysis. lipase enzyme was carried out by SSF and SMF showing more effective production SSF (25.97 ± 0.47 U/ml/min) as compared to SMF (10.27 ± …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 12, Issue 2, 2026 · pp. 1–21 Read article
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An Integrated Machine Learning and IoT-Based Framework for Predictive Urban Water Demand Management and Distribution Optimization
Abstract: Abstract Urban water resource management has become increasingly complex due to rapid urbanization, population growth, climate variability, and aging infrastructure. Conventional water management approaches are often reactive, inefficient, and incapable of handling real-time fluctuations in demand and supply. This study proposes an integrated framework that combines machine learning (ML) techniques with Internet of Things (IoT)-based real-time monitoring to enhance water demand prediction and optimize distribution systems in urban environments. The …
Published in International Journal of Water Resources Engineering · Vol. 12, Issue 1, 2026 Read article
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An Advanced Framework for Energy Harvesting in Device-to-Device Communication within 5G-Enabled IoT Healthcare Networks
Abstract: The healthcare sector is forever advancing, and one of the key technologies that have started playing a part in better patient care and management is Internet of Things (IoT) devices. The Device-to-Device (D2D) communication in 5G-enabled IoT healthcare networks provide better data transmission rate and very low latency. But despite all that, IoT devices still have over-the-top energy consumptions requiting attention. In this work, an innovative energy harvesting framework is …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 12, Issue 1, 2026 · pp. 22–30 Read article
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Evaluation of the Potential of Fused Silica Material: The Relationship of Temperature, Frequency, and Polarization
Abstract: Fused silica, a high-purity form of silicon dioxide, is widely recognized for its exceptional thermal stability, optical transparency, and low dielectric loss. This study evaluates the potential of fused silica as a material in advanced optical, electronic, and photonic applications by exploring its properties in relation to temperature, frequency, and polarization. Through a comprehensive analysis, we examine the temperature-dependent changes in its thermal and optical properties, including thermal expansion, refractive …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Wireless Power Charging Technologies for Internet of Things (IoT) Applications: A Comprehensive Review
Abstract: The propagation of Internet of Things(IoT) devices has significantly transformed the technological landscape, prompting a reevaluation of power management strategies. Traditional power supply methods can be cumbersome, necessitating frequent battery replacements or inconvenient cord connections, which limit the versatility and deployment of IoT devices. This article explores the integration of wireless power charging technology into IoT ecosystems, examining its technical viability, practical applications, and potential to enhance the lifespans and …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 10, Issue 1, 2024 Read article
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High-Performance Thin-Layer Chirography Detection of Ethambutol
Abstract: Ethambutol belongs to the class of organic compounds known as 1, 2 amino alcohols. Being a medication, it is primarily used to treat tuberculosis. Its route of administration is oral. It is readily absorbed by gastrointestinal tract and 50% excreted unchanged by urine. Capacity of protein binding is 20–30%. It is antitubercular agent i.e. inhibiting the synthesis of spermidine in myobacteria also inhibits the transfer of mycolic acids into cell …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 4, Issue 1, 2018 · pp. 31–33 Read article
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Smart Waste Segregation and Management Using IOT
Abstract: The Internet of Things (IoT) is a concept in which the interconnection is done via the internet of computing devices embedded in everyday objects, enabling them to send and receive data [1]. The initial technical realization of IoT was done by RFID which is used in identification and tracking of devices [5]. Due to the merits and characteristics of IoT, it plays an important role and has its applications in …
Published in International Journal of Software Computing and Testing · Vol. 5, Issue 1, 2019 · pp. 26–30 Read article
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Discovery of Materials through Applied Machine Learning and General Machine Learning Architecture
Abstract: Advances in artificial intelligence technologies, especially machine learning, have generated possibilities in the material sciences to facilitate material exploration and to achieve a profound understanding of the relationship between the constituent elements of the material and the properties represented by the material. The application of machine learning to the exploration of experimental materials is sluggish due to the monetary and temporal costs of experimental data, however parallel methods, such as …
Published in International Journal of Analog Integrated Circuits · Vol. 6, Issue 2, 2020 · pp. 48–57 Read article
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Electromagnetic Radiation (EMR) Based Smartphone Charging System
Abstract: Our lives are being profoundly affected by mobile phones, which we should always have with us. The risk for chronic exposure to cell phones is a more contemporary health concern associated with commonplace technology. Every cell phone produces considerable electromagnetic radiation (EMR). Even more can be done to transform the rays into energy, which can then be sent straight to the charger. The idea of transforming EMR into power is …
Published in International Journal of Analog Integrated Circuits · Vol. 8, Issue 1, 2022 · pp. 32–36 Read article