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443 articles for “K-band”
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Design of Ultra Wideband Square Aperture Shaped Microstrip (ASM) Antenna
Abstract: AbstractA compact coplanar waveguide-fed (CPW) microstrip antenna for ultra-wideband (UWB) wireless communication is presented. The antenna comprises a square aperture (24 mm × 24 mm) etched on the ground-plane of a printed circuit board and a modified rectangular shaped stub, also total size of the antenna is 30 mm × 30 mm. The lower edge of the band is attained by properly decoupling the resonant frequencies due to proper selection …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 2, 2013 · pp. 15–19 Read article
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Music on Mind and Body: A Simultaneous EEG and EMG Study to Quantify Emotions from Hindustani Classical Music
Abstract: With the advent of various techniques to assess the bioelectric signals on the surface of the body, it has become possible to develop various human-computer interface systems. In this study, for the first-time a cross- correlation based data is reported for two-different types of bio-signals viz. EEG (Electroencephalography) and EMG (Electromyography). Whereas EEG refers to the neuro-electric impulses generated in the brain recorded in the form of electric potentials, EMG …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 9, Issue 2, 2019 · pp. 27–38 Read article
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Soil Microbial Biomass and Microbial Quotient under Different Plantations at Maldeota, Dehradun, India
Abstract: Microbial properties have been reported to be useful indicators of soil quality and could serve as assessment criteria for the successful rehabilitation of ecologically disturbed areas. The microbial quotient – ratio of soil microbial biomass C to soil organic C – may, therefore, be a more sensitive parameter to monitor organic matter dynamics than either microbial biomass C or soil organic C considered alone. The study site is located at …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 2, Issue 1-3, 2012 · pp. 95–101 Read article
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Radio Frequency Energy Harvesting Using Microstrip Antenna
Abstract: In this paper, an antenna for energy harvesting in radio frequency range has been studied. The presented microstrip antenna gives good return loss obtained for wide range of applications in RF region ranges from 2.33 to 6.68 GHz. The anticipated antenna is best suitable to receive the RF energy from the environment that can be used to charge the electronic devices. The simulations of the proposed antenna were carried using …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 3, 2017 · pp. 12–15 Read article
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Experimental Studies and in silico Analysis on Quarum Sensing and System Simulation in Pseudomonas aeruginosa
Abstract: Pseudomonas aeruginosa is the most common pathogenic bacterium present in human microbial flora, biofilms, soil and water associated and support self microbial communications and survilance. The present study shows estimated protein concentration present in two days grown in Mullar hinton broth was resulted around 32.5 mg/ml. The studies in protein interaction on X-ray film with aqueous fruit and vegetable extracts showed good results with apple, straw berry, cucumber, grape, orrange, …
Published in Research and Reviews : Journal of Computational Biology · Vol. 7, Issue 1, 2018 · pp. 1–8 Read article
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CdS-Based Photocatalytic Nanostructures: A Promising Material for Various Environmental Applications
Abstract: Modern technological and industrial progress has significantly increased the use of chemicals in product development, leading to greater contamination of water sources by conventional pollutants (such as organic dyes and heavy metals) and harmful microorganisms. Wastewater treatment processes now reveal “emerging pollutants,” including pharmaceuticals, endocrine disruptors, and agricultural chemicals. Certain emerging pollutants, though harmless in some cases, can pose serious risks to various organisms. To address this, researchers are exploring …
Published in Research & Reviews : Journal of Physics · Vol. 14, Issue 1, 2025 · pp. 33–53 Read article
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A Strip Feed Compact UWB Antenna with Triple Band Notched
Abstract: In this paper, a microstrip feed Ultrawide Band (UWB) antenna with triple notch band characteristic has been proposed. The proposed antenna has U-shaped stub on the radiating patch. The proposed antenna reduces the interference between UWB and WiMAX/WLAN/ITU. The propose antenna has a compact size of 26 x 27 mm2. The proposed antenna achieved an operating bandwidth (VSWR<2) from 2.68 to 12 GHz except notch band 3-3.85 GHz (WiMAX), 5-5.9 …
Published in Current Trends in Signal Processing · Vol. 7, Issue 1, 2017 · pp. 1–7 Read article
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A Strip Feed Compact UWB Antenna with Triple Band Notched
Abstract: In this paper, a microstrip feed Ultrawide Band (UWB) antenna with triple notch band characteristic has been proposed. The proposed antenna has U-shaped stub on the radiating patch. The proposed antenna reduces the interference between UWB and WiMAX/WLAN/ITU. The propose antenna has a compact size of 26 x 27 mm2. The proposed antenna achieved an operating bandwidth (VSWR<2) from 2.68 to 12 GHz except notch band 3-3.85 GHz (WiMAX), 5-5.9 …
Published in Current Trends in Signal Processing · Vol. 7, Issue 1, 2017 Read article
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Comparison Between Reed–Solomon and BCH Code with Various Modulation Schemes Over Coding Gain and Coding Rate
Abstract: The main objective of this research paper is to make a comparison between the performance of Reed-Solomon (RS) and Bose–Chaudhuri–Hocquenghem (BCH) codes across different modulation schemes concerning coding gain and coding rate within an additive white Gaussian noise (AWGN) channel system, while maintaining a constant transmission bandwidth. In this paper bit error rate (BER) versus signal/noise (S/N) performance of a Simulink model is validated with MATLAB results for a RS …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 12, Issue 1, 2024 · pp. 32–50 Read article
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Internet of Things Connectivity Using Millimetre Wave: A Study
Abstract: Internet of Things(IoT) is undergoing rapid development, which is connecting millions of devices and causing sectors to undergo transformation. On the other hand, given this increase, the constraints of conventional wireless communication technologies are being stretched to their limits. Millimetre wave, often known as mmWave, is a high-frequency band that has the potential to revolutionise Internet of Things connectivity by providing much higher capacity levels and lower latency levels. Microwave …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 2, 2025 · pp. 18–30 Read article
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Design and Simulation of LNA in 90 nm 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 and 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 Read article
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Analysis of Low Bit Rate Audio Compression System using Linear Predictive Coding
Abstract: Abstract The point of the task is to build up a framework for encoding great quality discourse at a low bit rate. To execute this, we have utilized the most dominant discourse investigation system called Linear Predictive Coding (LPC). It utilizes tenth request Levinson-Durbin Recursion calculation to achieve the errand. It gives amazingly exact evaluations of discourse parameters and is moderately effective for computation. The discourse flag of guys and …
Published in Current Trends in Signal Processing · Vol. 9, Issue 1, 2019 · pp. 1–6 Read article
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Polarization Reconfigurable Antenna: Design and Analysis
Abstract: This paper presents an analysis and design of a polarization reconfigurable microstrip patch antenna fed with single and dual feeds operating at WLAN frequency. For a single feed structure a square patch is designed first and is perturbed for obtaining circular polarization. Using PIN diodes this design can be made to generate different polarizations. In case of a dual feed structure the radiating square patch has dual feeding provision and …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 1, 2015 · pp. 1–8 Read article
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A Comparative Study of Zinc Oxide Nano Particles Synthesized by Hydrothermal, Sol-gel and Thermal Decomposition
Abstract: In the proposed work, Zinc oxide nano particles (ZnO NP's) are synthesized using three different methods: Hydrothermal, Sol-gel and Thermal decomposition. The samples are characterized using X- ray diffraction (XRD), UV visible spectroscopy (UV-Vis), Fourier Transform Infrared Spectroscopy (FT-IR) and scanning electron microscopy (SEM). The XRD pattern exhibit single-phase polycrystalline nature of all the samples exhibiting the most intense peak at (101). The diffraction peaks are located at 31.80, 34.46, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 39–45 Read article
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LTE & 5G NR Carrier Aggregation Network Optimization through Advanced Measurement Configuration
Abstract: The ability to merge numerous frequency carriers—component carriers—to increase transmission bandwidth and throughput speeds over what can be achieved with a single carrier is known as carrier aggregation, and it is a crucial technology in 4G LTE and 5G networks. Cellular devices may attain gigabit data speeds by combining carriers from several frequency bands, such as 600 MHz to mm Wave frequencies, to increase downlink and uplink capacity. This study …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 10, Issue 2, 2023 · pp. 35–45 Read article
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Enhancing Terahertz Patch Antennas: The Role and Impact of Graphene
Abstract: Terahertz (THz) communication systems are gaining increasing attention because of their ability for high-speed wireless data transmission, making them suitable for the 6th-generation wireless applications. Patch antennas, commonly used in these systems, play a crucial role in signal transmission and reception. There are various types of conductive materials available for patch antennas, but the unique characteristics of graphene make it a suitable choice. This study explores the significance and contribution …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 2, 2025 · pp. 41–51 Read article
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Advancements in Fibre Optic Communication: Revolutionizing High-Speed Digital Connectivity
Abstract: Fibre-optic communication is a form of optical communication for transmitting information from one place to another by sending pulses of infrared or visible light through an optical fibre. By allowing high-speed, high-capacity data transfer over great distances with minimum signal loss, fibre optical communication has transformed the sector of telecommunications. The basic ideas of fibre optics, including light propagation through optical fibres, important components like transmitters, receivers, and optical amplifiers, …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 3, 2025 · pp. 1–6 Read article
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Integrated Polarimetric-Interferometric Fusion for Heterogeneous Urban Signature Extraction
Abstract: Mapping heterogeneous urban environments using conventional Synthetic Aperture Radar (SAR) backscatter intensity frequently produces classification errors due to spectral similarity between sparse built-up features, bare soil, and dry vegetation a challenge especially acute in semi-arid Deccan Plateau settings. This research presents a dual-path Pol- InSAR fusion framework that integrates polarimetric scattering decomposition and interferometric coherence stability to extract heterogeneous urban signatures over Beed Taluka, Maharashtra (area: 1,561.31 km²). A temporal …
Published in Journal of Remote Sensing & GIS · Vol. 17, Issue 2, 2026 Read article
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Vector Arrow Shape Microstrip Antenna for WiMAX Application
Abstract: AbstractIn this paper dual band microstrip patch antenna is presented which is used for personal communication system and wireless local area network. The two bands which ranges are 1.721-2.031 GHz with bandwidth of 16.53% and 2.964-3.202 GHz with bandwidth of 7.72%. The glass epoxy material is used as a substrate to design anticipated antenna and simulated with IE3D Zeland software. The simulation results like reflection coefficient, VSWR and smith chart …
Published in Journal of Electronic Design Technology · Vol. 8, Issue 3, 2017 · pp. 30–33 Read article
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Effects of Variation of Differential Gain and Injection Current on the Performance Characteristics of the Designed 405 nm MQW Violet Laser
Abstract: AbstractIn this work the Designing and Performance Analysis of a 405 nm InGaN based multi quantum well (MQW) Violet Laser have been presented. The internal designing of 405nm Violet Laser has been done with appropriate calculation. The desired wavelength of 405nm was obtained by adjusting the exact concentration of In0.0979Ga0.9021N / Al0.07Ga0.93N. The effects on Rate Equations by varying the differential gain and Injection current have been observed. Also the …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 1, 2014 · pp. 13–22 Read article