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385 articles for “Frequencies Applications”
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Thermo-Mechanical Vibration Analysis of Simply Supported Laminated and Flat Plates Under Harmonic Loading
Abstract: This paper delves into a numerical exploration of the vibration characteristics and frequency response of two types of plates: a simply supported rectangular laminated plate and a simply supported flat plate. These plates are subjected to concentrated harmonic forces within a thermal environment. The determination of the critical buckling temperature guides the assessment of thermal load effects. Analytical formulations, incorporating first-order shear deformation theory (FSDT) to consider shear deformation and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1519–1530 Read article
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Power Quality Improved AC-DC Sepic converter Used for Welding application
Abstract: Abstract— In this paper high frequency isolated ac-dc single phase single ended primary inductance converter (SEPIC) are proposed. Due to use of HF transformer more gain and high power is obtain. Proposed converter offers increased gain which is step-down in nature having less stress on current and also high efficiency. This paper described analysis modeling, and simulation of proposed converter. The performance is described in terms of power quality like …
Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 1, 2019 · pp. 24–30 Read article
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Triangle Cut Circle Shape Bending Antenna for Wide Band Application
Abstract: In this article, an antenna has been simulated for the frequency range of 2.00 GHz to 13.00 GHz, i.e., wideband applications under simulation Software CST using bending material. This bending material is having very less dielectric constant of 1.7. For bending the antenna, Jeans material is used. The return loss of bending antenna is -26 dB at 3.837 GHz resonant frequency. Also, the loss tangent of the antenna is 0.025. …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 2, 2019 · pp. 14–17 Read article
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Design of Advanced Microstrip Patch Antenna for Wearable Application
Abstract: AbstractThis paper presents the review on design of wearable microstrip patch antenna at the operating frequency of 2.4 GHz for wearable application. This work presents a method of applying the combinational between wearable electronics and antennas. Textile antennas are the most interesting research. In telecommunications, microstrip patch antenna is increasing in recent years consequently textile antennas are increasingly demanding. Microstrip patch antenna is an ideal choice for integrated into clothes …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 3, 2019 · pp. 18–22 Read article
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Spectral Mapping and Tracking Error of MBOC signal and Wavelet based GNSS receiver
Abstract: This research paper delves into the historical evolution and contemporary state of the art in navigation technologies, emphasizing the paramount importance of reliable positioning systems. Tracing the journey from ancient primitive methods to the present-day Global Navigation Satellite Systems (GNSS), with a focus on the Global Positioning System (GPS), the paper explores the diverse instruments and methods developed by civilizations throughout history to determine location and navigate effectively. The main …
Published in Current Trends in Signal Processing · Vol. 16, Issue 1, 2026 · pp. 50–65 Read article
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Characterizing Electromagnetic Behavior of X-Band Rectangular Waveguide with Convex and Concave Shaped Ridges Using Hp-Finite Element Method
Abstract: In this research study, we explore the behavior of electromagnetic waves as they propagate through ridge waveguides with convex and concave shapes, having both single and double walls. To analyze the waveguide's characteristics, we employ the highly accurate hp-finite element method (hp-FEM). The focus is on investigating the impact of these ridge deformations on cutoff frequencies and bandpass for TE10 and TE20 modes. To benchmark our findings, we compare the …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 1, 2023 · pp. 27–34 Read article
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A Review on Solar Multilevel Inverter for the Production of Free Energy Due to the Structure with Long-life Feature
Abstract: Multilevel inverters play a major role in medium voltage, high power and renewable applications. It is also used in certain applications where high switching frequency, and high output voltage gain are required. The switching transient period of a MOSFET should be minimal because a high dv/dt rate could result in permanent damage to the MOSFET. The harmonics present could cause many problems and so it has to be minimized. The …
Published in Journal of Nuclear Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 13–18 Read article
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EMERGING CHALLENGES IN RFID IN LIBRARY: A REVIEW
Abstract: A library is a living, breathing entity. Because of the advancement of the Internet and new information technology, library and information workers now have tremendous potential. RFID (Radio Frequency Identification), the pinnacle of ubiquitous computer technology, has long been the talk of the town and is employed by a variety of organizations, including libraries and information centers. RFID is a cutting-edge automated library technology that automatically identifies and tracks library …
Published in Journal of Advancements in Library Sciences · Vol. 11, Issue 1, 2024 Read article
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Compact Autonomous Multipurpose IoT BOT
Abstract: AbstractInternet of things (IoT) is widely used in interconnection of physical and other embedded devices, which enables the objects to exchange data. Robotics is the technology which is used to carry out complex series of actions either automatically or command based, guided by an embedded system within it. The proposed work is an integration of IoT with robotics for home automation. First, when the user enters into the house, robot …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 1, 2018 · pp. 27–33 Read article
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Performance Analysis of Proximity Coupled Microstrip Patch Antenna with DGS and EBG
Abstract: The objective of this paper is to analyze the effect of Defected Ground Structure (DGS) in a Proximity Coupled Microstrip Patch Antenna (PCMA) and the effectiveness of using this structure in a PCMA with an Electromagnetic Bandgap Structure (EBG). The EBG structure used is a metallo-dielectric structure having a printed metallization with connected via ground plane. This manoeuvering of EBG enabled PCMA with a dumbbell shaped DGS results in a …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 1–8 Read article
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Low Power RF QPSK MODEM Design
Abstract: System-level simulation including design of CMOS circuits for radio frequency QPSK MODEM targeting applications in 2.45 GHz industrial, scientific and medical (ISM) band has been presented in this paper. Based on the QPSK architecture, the MODEM consists of an analog mixer using a voltage multiplier, a 90 °phase shifter, delay circuits, a voltage adder and a filter to detect the information. A code reuse subsystem block consisting of Chebyshev filter …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 75–86 Read article
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A Review on High Electron Mobility Transistors
Abstract: AbstractThe demand for high speed semiconductor devices is increasing in recent years with the rapid development of the high frequency wireless and fiber optical communication systems. High electron mobility transistor (HEMT) is an important device and an excellent candidate for millimeter, sub-millimeter and microwave applications. Also, these devices have high frequency, high speed, low noise, high breakdown voltage, low cost and other power handling capabilities. Due to these reasons, they …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 2, 2016 · pp. 1–10 Read article
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Design of Rectangular Microstrip Patch Antenna for WBAN Application
Abstract: AbstractThis paper presents a microstrip patch antenna with frequency of 2.47 GHz with substrate of FR4 Epoxy with relative permittivity of 4.4. Due to very low cost and excellent mechanical properties it is ideal for wide range of electronic component applications. Here we have cut four rectangular corners on the patch. We have first cut one corner then we found the return loss as -15.6db and gain as 5.679.To improve …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 25–33 Read article
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Study of Current Conveyors for Signal Processing Applications
Abstract: Current conveyors are basic analog building blocks used for voltage as well as current processing applications. Current conveyors are used as a voltage or current buffer in many applications. They are used for high frequency, high bandwidth, high dynamic range, better linearity, high driving capability, low voltage and low power applications. Current conveyors modify the limitations of low impedance at the output, tradeoff between speed and bandwidth and constant gain …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 1, 2017 · pp. 7–14 Read article
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Frozen Waves: Double T-Shape Patch Antenna Sensor for Precise Ice and Snow Measurement
Abstract: To design a Micro strip patch antenna with double T shaped slots at operating frequency 2.4GHz was developed for ice detection and measurement application. Detection was performed by monitoring the resonance frequency and amplitude of the transmission coefficient between the antenna sensor and a broadband receiver. The patch antenna sensor is also capable of distinguishing between ice and water, respectively when compared to the bare sensor. The antenna was also …
Published in Journal of Control & Instrumentation · Vol. 14, Issue 3, 2023 · pp. 15–20 Read article
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Dual-Wavelength and Tunable Fiber Lasers for Microwave Photonic Applications
Abstract: Dual-wavelength and tunable fiber lasers have emerged as key enabling technologies for advanced microwave photonic (MWP) systems, offering high spectral purity, wide tunability, and enhanced stability. These laser sources play a critical role in generating and processing microwave and millimeter-wave signals through optical means, enabling low-loss transmission and immunity to electromagnetic interference. This review presents recent progress in the design and implementation of dual-wavelength and tunable fiber lasers, highlighting their …
Published in Journal of Microwave Engineering and Technologies · Vol. 13, Issue 1, 2026 · pp. 17–25 Read article
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Performance Analysis of Conventional Direct Torque Control Strategy for Wide Range Speed Control of Induction Motor Drives
Abstract: Decoupled control of induction motor drives is possible using Direct Torque Control (DTC) method which is very simple control approach paralleled to field oriented control. It is very good alternative for applications like traction or automobile where direct torque control is needed. But speed control from zero to rated or even beyond rated speed is required in such applications. Torque ripples, variable switching frequency and poor low speed performance are …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 36–45 Read article
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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
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Recent Innovations in Semiconductor Materials for Smart Electronic Devices
Abstract: Recent advancements in semiconductor materials have significantly transformed the design, performance, and functionality of smart electronic devices such as smartphones, wearable systems, IoT devices, autonomous systems, and biomedical electronics. With the continuous demand for higher processing speed, lower power consumption, improved thermal stability, and extreme miniaturization, traditional silicon-based semiconductor technology is facing major limitations. As device dimensions shrink to the nanometer scale, challenges such as leakage current, heat dissipation, and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 13, Issue 2, 2026 · pp. 1–11 Read article
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High-Gain Microstrip Patch Antenna for Satellite and Radar Applications
Abstract: The growing demand for high-speed wireless communication, satellite connectivity, and advanced radar systems has increased the necessity for compact and high-performance antenna designs. This study presents the design and analysis of a high-gain microstrip patch antenna intended for satellite and radar applications operating in the microwave frequency range. The proposed antenna structure is developed using a low-loss dielectric substrate to enhance radiation efficiency, bandwidth, and gain characteristics while maintaining a …
Published in Journal of Microwave Engineering and Technologies · Vol. 13, Issue 2, 2026 Read article