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1957 articles for “(DES)” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Performance and Improvement of Antenna Designs in Modern Wireless Communication System
Abstract: AbstractIn this paper, the cell innovation and the remote correspondence innovation is creating and enhancing quickly. The reception apparatus goes about as the scaffold between the client terminal and the base station controller. Being a key segment of the remote correspondence framework, the reception apparatus' fundamental capacity is to communicate and to get electromagnetic waves. It will, to an expansive degree, influence the quality and the speed of the correspondence. …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 3, 2017 · pp. 5–10 Read article
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Design and Implementation of Microstrip Line Fed Rectangular Patch Antenna
Abstract: AbstractThis paper presents a high-performance microstrip line fed rectangular patch antenna with resonance frequency of 2.75GHz. The antenna has been simulated using IE3D software as well as HFSS. The return loss of the patch antenna found to be 24dB through IE3D simulation tool. From the results obtained, it is clear that harmonics exists at 3.75GHz which successfully minimized by removing a part of microstrip conductor with dimensions in accordance to …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 1–4 Read article
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Design of a Multiband Antenna with Rectangular and Circular Slots for 5G Mobile Technology
Abstract: AbstractThis paper presents a microstrip patch antenna for 5G mobile communication. Requests for mobile communication arise because of rapid growth in mobile users. So, users need more features like high data rate, good communication and reduced traffic on their mobile phones. These requirements can be met using 5G technology. 5G technology offers very high bandwidth, reduced latency, broadband spectrum, improved QoS and a better capacity. 5G operates from 24 GHz …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 2, 2020 · pp. 30–34 Read article
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Design and Analysis of Multi Band Patch with Enhanced Bandwidth
Abstract: In this article, a novel lower edge defected multi-band patch with modified ground structure (or Defected Ground Structure-DGS) with enhanced bandwidth has been presented. The bandwidth can be enhanced by defecting the partial ground and by arc truncation of lower edges of the patch. The antenna was converted into multi-band by defecting the lower corners. The antenna is resonating at multiple bands i.e. 3.7 GHz, 7.87 (~7.9) GHz, 12.19 (~12.2) …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 3, 2020 · pp. 1–8 Read article
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Design of Ultra-Wide Band Slotted PIFA for Wireless Devices
Abstract: The design of an ultra-wideband planar inverted-F antenna (PIFA) is proposed for mobile phone applications in this paper. The different slots are introduced on radiating patch and ground plane. The volume of the radiating antenna is 40x40x3.5 mm3 which is small as compared to reported work. The ultra-wide bandwidth with acceptable return loss –6 dB is obtained from 4.6 to 30 GHz with good matching and radiation characteristics. Different performance …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 2, 2016 · pp. 1–6 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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Design and Analysis of Microstrip Band Stop Filter with Modified Circle and Dumbbell Shape Ground Structure
Abstract: In this proposed paper the performance of Band stop filter with modified ground structure is analyzed in this specific work; the modified ground structure includes a circle and dumbbell etched shapes in ground plane. Parameters of the proposed configuration were calculated at the cut off frequencies of f1=1 GHz, f2=1.62GHz and also proposed designs having substrate height of 1.6 mm, loss tangent of 0.02 and dielectric constant of 4.4. Results …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 26–31 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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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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Design of Digital Frequency Sensitive Phase Detector and study its Phase Response
Abstract: In this paper, a digital frequency sensitive phase detector (PD) with voltage controlled phase response is presented. This scheme is based on classical type flip-flop phase detectors and an improved PD operating on both edges of the input sequence. Phase-to-voltage response characteristic control is accomplished by the additional feedback of the low-pass filter output voltage to reset the control pin input. In this paper, we have presented a simulated frequency …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 3, 2021 · pp. 43–51 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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Parametric Optimization of MRR in Manual Air Plasma Arc Cutting of AISI 1017 MS using Design of Experiment
Abstract: In previous fifty years there has been remarkable research in machining and development in technology. Now a days with rise in competition in the market and to achieve high accuracy; the nonconventional machining has become more important in any industry. One of the most important unconventional machining processes is plasma arc cutting (PAC). Its high accuracy, finishing, ability of machining very hard materials makes it more demanding in the market. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 2, 2015 · pp. 22–28 Read article
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Evaluation of Mechanical Property and Optimization of the Dry Sliding Wear Behavior of Carbon Black-Alumina-Epoxy-Glass Composite by using Design of Experiments
Abstract: The research work is mainly focused on investigating the effects of wear parameters: filler content (0%, 4% CB, 4% Al2O3,and 2% CB + 2% Al2O3), applied load (4.905, 9.810, 14.710, and 19.62 N), sliding distance (20, 30, 40, and 50 mm) by using Design of Experiments (DOEs) approach. The experimental results were analyzed using MINITAB V16 scientific graphical and data analysis software. Signal-to-Noise (S/N) ratio, analysis of variance (ANOVA) proved …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 21–31 Read article
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Design conceptualization and computational analysis of cryogenic engine nozzle -ABYOM
Abstract: The main purpose of this paper is to design a cryogenic engine nozzle with specified dimensions using CATIA V5 software and analyze the nozzle using ANSYS software. The realizable k-ε viscous model was used for calculation and the Hydrogen (H2) had retained as an ideal gas. The CFD simulations were done on the nozzle to find the pressure, density, velocity, and temperature. In the graph, there are 500 points streamlined …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 2, 2022 · pp. 14–23 Read article
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PVC Pipe Designer Furniture
Abstract: AbstractPolyvinyl chloride (PVC) products are 100% recyclable physically, chemically and energetically. This can be used to make various products like steam houses, kid’s houses, shoes stands, laptop stands, kid’s scooters, bookshelves etc. There are many benefits of PVC such as, high impact resistance, good temperature capability, light weight etc. PVC’s versatility, cost effectiveness and an excellent record of use, makes it capable enough that it can replace traditional building materials …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 29–33 Read article
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Energy Estimations and Hypothetical Design of an Exclusive Tourism Spot in Coastal Region Named “Bhasan Char” of Bangladesh
Abstract: Bhasan Char is a coastal island at Hatiya upzilla of Noakhali District. It is a single charwhich has been uncovered from the Bay of Bengal a few years back. An emergencyhumanitarian project implemented by the government of Bangladesh at this coastal island“Bhasan Char”, from September 2017, to temporarily rehabilitate a portion of incomingRohingya refugees before they can repatriate to their homeland, Myanmar. Under thisproject, government of Bangladesh carries out land …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 3, 2019 · pp. 10–18 Read article
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Design and Development of Power Saving Generation using Conveyor Belt
Abstract: This paper represents the “power saving and generation using conveyor belt”. As electricity prices continue to rise the increasing need of energy management; requires better understanding of models for energy-consuming applications, such as conveyor belts. Our team chooses to research the flexibility in power saving and generation using conveyor belt with different type of applications. Conveyor belts are used in wide range of industries, including power generation, mining and mineral …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 1, 2017 · pp. 18–21 Read article
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Design and Simulation of Phase-Integral Switching Control
Abstract: The Class of ac power controllers consists of switching regulator which connects and disconnects the load to the supply according to the required power. The two voltage control techniques for regulating the power flow in a.c. voltage controllers are Phase Control and Integral Cycle Control (ICC). Phase control undergoes the limitation of harmonic injection while integral cycle control provides control in integral values only. In the proposed method, both the …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 3, 2012 · pp. 8–13 Read article
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Power Supply Design Issues for Personnel Computers Application: A Review
Abstract: A power supply should meet various requirements for proper functioning of a PC. Electromagnetic Interface (EMI) causes catastrophic failures resulting in malfunctioning of PC's. It is therefore essential to meet the Electromagnetic Compatibility (EMC) requirements in addition to other design considerations demanded in a high technology system. The computer is operating and transmitting the signal with low voltage, so it is sensitive to Electromagnetic interference of leakage. Since the PC …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 2, 2013 · pp. 37–40 Read article
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Design and Simulation of IRFOC for SPWM Inverter-fed Induction Motor Considering Core Loss and Stray Load Loss
Abstract: The principle of field oriented control (FOC) or vector control (VC) of induction motors (IMs) is based on the control of both the magnitude and the phase of each phase current and voltage to achieve the decoupling control strategies between flux and torque. To control the flux and the torque precisely based on the FOC, core losses (CL) and stray load losses (SLL), which are generally neglected, should be considered …
Published in Journal of Power Electronics and Power Systems · Vol. 4, Issue 2, 2014 · pp. 1–11 Read article