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915 articles for “bands”
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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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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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Review Paper of Designing of CPW Fed Micro-strip Patch Antenna for UWB and Bluetooth Application
Abstract: A compact size coplanar waveguide (CPW)-fed micro strip antenna is proposed for radiation of the frequency spectrums 2.36 to 2.49 GHz (Bluetooth) and 3.1 to 10.6 GHz (UWB-Ultra wideband) covers. Both are unlicensed bands but in UWB band there are two licensed bands i.e. WLAN and Wi-MAX present in the frequency range of 5.12 to 5.825 GHz and 3.4 to 3.7 GHz respectively. In this design we have single CPW-fed …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 1, 2016 · pp. 35–40 Read article
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Small Size High Gain Antenna and High Efficiency Rectifier for RF Energy Harvesting in 2.45 GHz ISM Band
Abstract: A streamlined microwave energy harvesting system to harvest energy in 2.45 GHz presented in this paper. An electromagnetically coupled square micro-strip antenna is designed and fabricated for formation in proposed system. Antenna gain of 6.7 db and bandwidth from 2.42to 2.47 GHz is achieved. The maximum gain of proposed antenna is 24 db at frequency 2.1 GHz. Rectifier circuit consists of a resonant circuit and a boosting circuit for enhancing …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 1, 2016 · pp. 41–46 Read article
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RF Energy Harvesting from Wi-Fi Router in 2.45 GHz ISM Band
Abstract: In this paper, an experimental RF energy harvesting system using rectifying antenna (rectenna) to harvest ambient energy from Wi-Fi at 2.45 GHz is presented. The proposed circuit is a combination of RMPA, followed by a third order stepped impedance low-pass filter, matching network and rectifier using Schottky diode for microwave (RF) to DC conversion. The performance of the rectenna is simulated by electromagnetic simulator computer simulation technology (CST) microwave studio. …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 21–25 Read article
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Development of Bandwidth Enhanced Microstrip Patch Antenna for UMTS Application
Abstract: In this article, a low-profile microstrip patch antenna for UMTS application is presented. A wideband coaxial probe-fed slotted microstrip patch antenna has been simulated on IE3D software to give a wide bandwidth of 31.34% and tested successfully. The simulated and measured results in terms of return loss show good agreement.
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 1, 2015 · pp. 14–20 Read article
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U-Shaped Antenna Design for 5G High Frequency Band
Abstract: Designing small antennas for 5G millimeter wave bands is an emerging research subject in the wireless communication age. This research paper describes the design, simulation, and measurement of a micro-strip patch antenna operating at high frequency, 38 GHz. The substrate material used is FR4 proxy due to its easy availability and cost with the dielectric constant 3.8 to 4.6. The analysis and simulation are done on Ansys HFSS Software. The …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 3, 2023 · pp. 31–40 Read article
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Emissivity and Dielectric Behavior of Red Soils of Dhule District at X-band Microwave Frequencies
Abstract: Using X-band (8.2 and 10.5GHz) experimentation, the fluctuation of the dielectric constant (ε’) and dielectric loss (ε’’) of soil samples with different moisture contents has been determined. After reaching a transition point, the value of (ε') grows gradually with moisture content before increasing quickly after that. The emissivity has been estimated from experimentally determined (ε’) using emissivity model for vertical polarization. The findings indicate that as MC/dielectric constant increases, emissivity …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 3, 2023 · pp. 23–30 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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Analysis of Gain Bandwidth Product by Achieving Gain Flatness in EDFA for Dense Wavelength Division Multiplexed System
Abstract: In this paper, we have analyzed gain bandwidth product through gain flatness in EDFA for dense wave length division multiplexed system. The system consist of four channel DWDM with varying wavelengths of optical fiber from 1530 to 1560 nm and by changing the noise for each amplifier to achieve the quality factor and noise figure of both the amplifiers. In this article, we used the frequency spacing of 2 GHz …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 2, 2016 · pp. 1–5 Read article
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Rectangular Patch Antenna with Dual and Triple-band using Complementary Split ring Resonator (CSRR)
Abstract: This paper presents the idea of a Complementary Split Ring Resonator (CSRR)-based multiband microstrip patch antenna. By etching the CSRR in the ground plane of the conventional rectangular patch antenna, several bands are obtained, thereby miniaturizing the conventional antenna. This article examined and contrasted the results of the microstrip antenna with two, four and six CSRR inclusions. Because of the quasi-static resonance properties of the complementary split square resonators, the …
Published in Trends in Electrical Engineering · Vol. 10, Issue 3, 2020 · pp. 1–6 Read article
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Design Optimization of C-Band 4-Channel WDM Optical Communication System using EDFA
Abstract: AbstractIn this work, the design and experimental characterization of high performance C band Erbium Doped Fiber Amplifier (EDFA) booster which is pumped at 980 nm are presented. The system is simulated using Optisystem software to achieve gain flatness of EDF through optimized fiber length and pumping wavelength. The performance of the system is more efficient at the pumping wavelength of 980 nm than that of 1480 nm for a wide …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 2, 2014 · pp. 1–8 Read article
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Alzheimer disorders diagnosis system design using machine learning for EEG signal
Abstract: The diagnosis of Alzheimer's disorders (AD), a prevalent neurological disorder, can created by utilising a range of therapeutic methods, including the electroencephalogram (EEG), which has been especially successful in the past. The objective for this study is to develop a computer-aided diagnosis tool which may recognize AD from EEG data. The EEG information was cleaned up with a band-pass elliptic digital filter to remove any interference or disruptions. The filtered …
Published in Journal of Control & Instrumentation · Vol. 14, Issue 4, 2023 Read article
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Investigation of the Thermoelectric, Electronic Band Profile, and Structural Properties of Skutterudites Based on Cobalt and Antimony
Abstract: We investigated ThCo4Sb12, an actinium-filled skutterudite, from the ground up for structural, electronic, and thermoelectric properties. A generalized gradient approximation and modified BeckeJohnson potentials were used to calculate the exchange-correlation potential. The compound is shown to have metallic properties in the electronic structure calculations. Actinium series element is used as a void filler in this study. The Seebeck coefficient and electrical conductivity can be calculated using Boltzmann's transport theory. According …
Published in Journal of Structural Engineering and Management · Vol. 11, Issue 2, 2024 · pp. 13–19 Read article
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IoT-Based Smart Waste Tracking & System for Monitoring
Abstract: In an era of rapid urban growth—driven by continued population growth and greater waste dispersion due to unregulated disposal practices by all citizens—a major challenge is emerging in the effective management of solid waste in urban environments. This project proposes a solution to this challenge: a Smart Waste Tracking & System for Monitoring. In this system, every household is provided with an RFID card, which they must use each time …
Published in International Journal of Environmental Noise and Pollution Control · Vol. 4, Issue 2, 2026 · pp. 12–23 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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Design of UWB Microwave Filter Using Quarter Wavelength Short-Circuited Stub
Abstract: UWB technology has progressed a lot in recent years for high speed wireless communications and other applications which need higher data rate and wider bandwidth. In this paper UWB bandpass filter is designed using quarter wavelength (λ0/4) short circuited stubs to improve the performance of UWB. Designed UWB filter gives higher performance and lower insertion loss in UWB spectrum. 5th order UWB bandpass filter is designed using CST MWS simulation …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 32–36 Read article
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Design and Implementation of UWB-MIMO Triangular Antenna with Notch Technology
Abstract: The paper proposes a quad-element UWB-MIMO triangular monopole antenna with triple notched bands and high isolation. The antenna comprises four triangular-shaped elements arranged orthogonally, printed on a low-cost FR-4 substrate with a dielectric constant of 4.4. Its dimensions are 50 × 50 × 1.6 mm³, and it operates within the frequency band of 2.97 to 11 GHz. To achieve high isolation of 22 dB between the four radiatingelements, a square …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 3, 2023 · pp. 8–15 Read article
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Review and Critical Analysis of Bandantha Nagarjuna’s Rasa Vaisheshika Sutra
Abstract: Aim: To do literary review of the book Rasa vaisheshikha sutra and critically analyse its contents with works published after Rasa vaisheshika. Background: Nighantu’s are the treatise that contain a collection of paryaya with guna karma of dravya and their basic concepts. Rasa vaisheshika is one such Nighantu which belongs to the ancient period and elaborately explains the basic concepts of Dravyaguna vigyana (study of medicinal drugs, their properties, actions …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 8, Issue 3, 2021 · pp. 38–47 Read article
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Hemoglobin Electrophoresis to Identify Adult Hemoglobin and Abnormal Hemoglobin Bands
Abstract: According to National Thalassemia Welfare Society (NTWS) report, every year, around 3 to 4 lakhs babies are born with one or other form of hemoglobinopathies and around 7% of the world population is carrier of hemoglobinopathies. In India, hemoglobinopathies like thalassemia and sickle cell anemia, are one of the most common hereditary disorders and cause a major health problem. In India, incidence of sickle cell and β thalassemia differ from …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 12, Issue 2, 2023 · pp. 1–6 Read article