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385 articles for “Frequencies Applications”
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Direct Determination of the Frequency-Dependent Transmission Constants of Non-Uniform Two-Port Networks
Abstract: Due to space constraints and the expansion of electricity networks, transmission lines that cross close to one another are now commonplace. Power networks also commonly install higher operational voltage lines that share transmission corridors with lower voltage lines. Overhead transmission lines are the primary method for transmitting electrical energy across vast distances. This paper presents an efficient and direct technique for identifying the four frequency-dependent ABCD transmission constants of arbitrary …
Published in Journal of Power Electronics and Power Systems · Vol. 14, Issue 3, 2024 · pp. 1–8 Read article
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Open-Loop Resonator with Interdigital Capacitor Bandpass Filter For Wireless Application
Abstract: In this paper bandpass filter have been designed and simulate using two open loop resonator with polygonal forms and to enlarge the bandwidth by using interdigital capacitor in between two open loop resonators. The overall filter dimensions are 8 x 16 mm² using Rogers Ro 3010 with thickness of 1.5 mm and relative permittivity 10.2 The centre frequency of 2.45 GHz and -3dB fractional bandwidth (FBW) of 12.3% with return …
Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 2, 2019 · pp. 22–25 Read article
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A Review on Quad Band Microstrip Antenna for GSM and GNSS Application
Abstract: Micropstrip or patch antennas are also known as a printed antenna fabricated on printed circuit board (PCB). Microstrip antennas are low cost, have a low profile, low weight and are easily fabricated [1]. They are used atmicrowave frequencies. In this review paper, a survey on quad band operations in patch antenna papers, which have been used by authors for designing of low profile, small compatible patch antenna, have been presented. …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Noise and Vibration Reduction Using Sustainable Polymer Nanocomposite Materials: A Review
Abstract: Noise pollution and structural vibration represent critical challenges in modern engineering systems, affecting human health, operational efficiency, and equipment durability. This review examines the application of sustainable polymer nanocomposite materials for simultaneous noise and vibration reduction across diverse engineering domains. The fundamental relationship between structural vibration and noise generation is established, followed by a comprehensive analysis of sound absorption and damping mechanisms in nanoparticle-reinforced polymer systems. Multi-walled carbon nanotubes (MWCNTs), …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 785–798 Read article
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A Compact Umbrella Shaped Patch Antenna using DGS for Dual/Triple/Quad Band Applications
Abstract: In this paper, a compact Umbrella shaped microstrip patch antenna for Quad band applications specially for X band, Ku band and K band applications is presented. The antenna is simulated using the Ansys soft HFSS simulator. The size of the antenna is 25 mm×25 mm ×1 mm and printed on an FR4 substrate. Defected ground structure in the form of concentric circular rings is used to increase the bandwidth of …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 36–44 Read article
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Performance Analysis of DG FinFET for Ultralow-power Subthreshold Applications
Abstract: Subthreshold operating region of transistor shows huge potential toward satisfying demand of ultralow power (ULP) consumption from handheld portable devices. However, operating device with such small subthreshold leakage current as a switching current gives huge penalty in their operating frequency. For subthreshold operating region key design goal is to boost the speed of the device. DG FinFET device shows excellent device characteristics in subthreshold operating region. In this paper, 1-bit …
Published in Journal of Electronic Design Technology · Vol. 1, Issue 1-3, 2011 · pp. 26–33 Read article
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Design of Dielectric Resonator Antenna (DRA) for 4G LTE Applications
Abstract: AbstractIn this paper, a rectangular Dielectric resonator antenna (RDRA) is presented for 4G long-term evolution (LTE) applications. A metallic stripline feed is used to excite the antenna. A metallic strip line is used to increase the electric length of the port. Rectangular DRA is designed using FR4 substrate material having dielectric constant 4.4 and design is simulated with the help of high-frequency structure simulator (HFSS). Design antenna structure covered the …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 2, 2018 · pp. 22–27 Read article
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Design of Passive Phase Shifter for Beam Steering Applications
Abstract: The role of phase shifters in the field of beam steerable antennas is vital. The paper presents a navel technique in designing of phase shifters. This technique is facilitating many advantages along with phase shifting, such as reducing mutual coupling between array antenna elements results reduction in overall antenna size and miniaturize the radiating antenna aperture. This structure also shields the components behind the antenna. This method helps in eliminating …
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 26–32 Read article
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Performance analysis of cross-slotted patch antenna for wireless system applications
Abstract: A C-band cross-slotted microstrip patch antenna for ice and frost detection in wireless sensing applications. The antenna configurations with distinct cross-slot geometries are designed to investigate their influence on impedance matching, radiation characteristics, and sensing sensitivity. The antennas are modeled and analyzed using Ansys HFSS, and their dimensions are optimized using standard microstrip antenna design equations. Ice and frost accumulation on the antenna surface is identified through measurable shifts in …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 13, Issue 1, 2026 · pp. 35–50 Read article
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Radio-Frequency (RF) Energy Transfer and Harvesting Techniques with Rectifier and Antenna
Abstract: Electromagnetic energy has an important role in power and energy industry. As the demand for power increases, need for alternate energy sources are essential. Radio frequency (RF) energy transfer and harvesting techniques becomes one of the solutions. Basic RF harvesting circuit consists of three elements. This can be achieved by using a rectenna combination of rectifier and antenna. The antenna is to receive RF signal and rectifier to convert RF …
Published in Journal of Communication Engineering & Systems · Vol. 10, Issue 1, 2020 · pp. 1–5 Read article
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Electromagnetic and Dielectric Performance of Polymer–Ceramic Composite Substrates for Fractal-Based IoT-Antenna Fabrication
Abstract: Polymer–ceramic composite substrates play a crucial role in determining the electromagnetic performance, mechanical stability, and thermal reliability of radio-frequency devices. In this work, a polymer-based composite substrate is systematically investigated for its suitability in compact IoT and RFID antenna applications. A fractal-structured antenna is employed as a functional test platform to evaluate the dielectric behavior, impedance characteristics, and radiation efficiency of the composite substrate. Novelty of the proposed reader antenna …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1518–1534 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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All-Digital Phase Locked Loop (ADPLL) as an Intellectual Property (IP) Core for an Application-specified Integrated Circuit (ASIC) Product: A Survey
Abstract: An all-digital phase locked loop (ADPLL) plays a great role in decreasing the development time of an application-specified integrated circuit (ASIC) products and helps to meet the time-to market requirement of product, because an ADPLL can be used as an IP core, so it is easily reusable in any design. Now a days ADPLL is being widely used in various fields such as control systems and digital communication systems. This …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 3, 2015 · pp. 12–17 Read article
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A Compact CPW-fed Quadruple-band-notched Antenna with Concentric Annular-rings for UWB Applications
Abstract: In this paper, a compact coplanar waveguide (CPW)-fed quadruple-band-notched antenna with concentric annular-rings for ultra-wideband (UWB) applications is presented. The proposed antenna consists of four concentric annular-ring resonators, a circular shape radiating element and a CPW feed line. The quadruple band rejection is easily achieved by controlling the widths and radii of four concentric annular-ring resonators. Through the exception of four stop-bands at 3.29 to 3.7 GHz, 5.07 to 5.92 …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 2, 2023 · pp. 38–47 Read article
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Real-Time Edge Detection Camera Module Using Discrete Taylor Transform and Heat Equation (PDE): An Applied Mathematical Approach
Abstract: In modern digital signal processing, the capability for denoising and smoothing in real time is very important in scientific, engineering, and industrial applications. This paper presents an efficient hybrid framework that merges two mathematically sound methods, namely, DTT and PDE defined as the Heat Equation, to robustly denoise a signal with minimal distortion. The model addresses one of the most challenging tasks in signal restoration, which maintains the fidelity of …
Published in Current Trends in Signal Processing · Vol. 16, Issue 2, 2026 · pp. 9–14 Read article
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Performance Analysis of Bridgeless Converter Based SMPS used for Welding Application
Abstract: Abstract: This paper deals with performance analysis bridgeless converter based switched mode power supply (SMPS) of improved power quality. Power Factor Correction (PFC) based bridge less SMPS having so many applications in the area of welding power supply with IPC. This topology based on the constant voltage output and output current varied according to load changes. In the proposed topology, it is replaced the front end diode bridge rectifier with …
Published in Journal of Electronic Design Technology · Vol. 10, Issue 1, 2019 · pp. 27–33 Read article
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Analysis of FSO Communication System under different weather conditions by incorporating Pre and Post Optical Amplifier
Abstract: AbstractFSO Communication is currently needed for the modern era because of high channel capacity and bandwidth. FSO is a line of sight; license free and low-cost technology which makes it preferred over radio frequency communication and other wireless technologies. In this paper, the first part tells about the introduction of the FSO system, its advantages, disadvantages and applications. The second part will discuss the atmospheric attenuation caused by different weather …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 16–24 Read article
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The Impact of High-speed Networks on HFT Performance
Abstract: This study provides an in-depth examination of the critical role that high-speed networks play in the operations of high-frequency trading (HFT) firms. High-speed networks, characterized by their low latency and high bandwidth, facilitate the rapid, efficient transmission of massive quantities of data, a capability that is vital to the success of HFT strategies. We explore the core infrastructure that enables high-speed trading, from high-performance servers and switches to network interface …
Published in Journal of Communication Engineering & Systems · Vol. 14, Issue 1, 2024 · pp. 1–8 Read article
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ENHANCING CONTROL WITH EMBEDDED SSVEP-BCI
Abstract: Brain–Computer Interface (BCI) technology establishes a direct communication link between the human brain and external devices without relying on muscular activity. Among various BCI paradigms, the Steady-State Visually Evoked Potential (SSVEP)-based approach has gained significant attention due to its high signal-to-noise ratio, minimal user training, and suitability for real-time applications. However, implementing such systems on embedded hardware presents challenges such as limited computational resources, signal noise, and latency in processing. …
Published in Recent Trends in Electronics Communication Systems · Vol. 12, Issue 3, 2025 · pp. 41–52 Read article
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Influence of Center Cut Geometry and Power Law Index on the Free Vibration of Functionally Graded Shells
Abstract: This study explores the influence of power law variations and center cut geometries on the vibrational characteristics of functionally graded material (FGM) shells using finite element analysis (FEA). Stainless steel-alumina oxide (Al2O3) composites serve as the FGM, offering a unique blend of ceramic heat resistance and metallic toughness. Power law functions within APDL tailor material properties across the shell thickness. The research investigates vibrations under various boundary conditions (CCCC, CCFF, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 194–209 Read article