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73 articles for “microwave”
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Heavy metal concentrations in two mangrove species grown in the UAE region and use of phytoremediation technology
Abstract: The mangrove vegetation of Eastern region of UAE, rhizosphere root, leaf, stem and soil sediments of two mangrove types studied for the levels of Cr, Cu, Cd, Mn, Ni, Zn and Pb in the eastern Emirates region. The analysis was carried out with FAAS spectroscopy using microwave digestion technique. The two mangrove plants are most abundant in this region. the bioconcentration factor (BCF) > 1 metal content was quantized. It …
Published in International Journal of Green Chemistry · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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Design and Analysis of Multiband RMPA at Lowest Frequencies With Miniaturization in Its Dimensions
Abstract: In this paper, two different designs of compact microstrip patch antennas are proposed. The central goal of these proposed designs is to miniaturization of the overall size of the antennas and making them resonant at lowest possible frequencies simultaneously. The first design is the dual band compact rectangular microstrip patch antenna resonant at 0.56 and 2.4 GHz. In this design, the compactness is achieved by using DGS and defected patch …
Published in International Journal of Analog Integrated Circuits · Vol. 3, Issue 1, 2017 · pp. 26–32 Read article
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DESIGN OF TRUNCATED SQUARE MICROSTRIP ARRAY ANTENNA FOR ENERGY HARVESTING
Abstract: ABSTRACTAn 2X2 array of truncated square microstrip antenna is proposed in this paper. Antenna is designed for energy harvesting. This proposed antenna has a bandwidth for VSWR < 2 from 2.36 to 2.58GHz. A single antenna was designed initially at 2.4GHz, then array of the antenna was designed with the same frequency and results were compared. Four truncated antennas were used in the designing of the proposed antenna, microstrip feed …
Published in International Journal of Broadband Cellular Communication · Vol. 5, Issue 2, 2019 · pp. 10–16 Read article
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Analysis of a Microstrip Triangular Patch Antenna using DGS as a Strain Sensor
Abstract: Microstrip patch antenna is a plane shape, light weight and low cost antenna that used to receive and transmit electromagnetic wave. This paper describes the design and simulation of a triangular microstrip patch antenna using DGS for strain measurement. The microstrip antenna was designed and simulated using Computer Simulation Technology (CST) Microwave Studio. When the antenna is under strain/crack, its resonance frequency varies accordingly. By using DGS in microstrip antenna …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 1, 2015 · pp. 10–13 Read article
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DESIGN AND ANALYSIS OF ITERATED STAR SHAPED STAR SLOTTED FRACTAL ANTENNA
Abstract: In this paper, A Novel star shaped iterated fractal antenna with circular slot in midway is proposed. Proposed antenna is very small in size and ground of antenna also defected by cutting approximately half PEC material. In this proposed antenna number of iterations has been applied. This proposed Antenna is simulated by CST-MWS (Computer Simulation Technology – Microwave Studio) and different simulated results are analyzed. The self similarity property of …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 2, 2015 · pp. 1–6 Read article
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Simulation of Pyramidal Structures Of Coco Peat and Coconut Shell Activated Carbon as Radar Absorbing Material
Abstract: Shape is the main parameters that affect the performance of the pyramidal microwave absorber. The pyramidal shape is mostly installed in the anechoic chamber. But the shapes of these pyramidal structures are very large. The aim is to design a structure of pyramidal absorber with different materials and with low height to achieve maximum absorption. In this paper, we have investigated the different structures of the pyramidal absorber and simulate …
Published in International Journal of Microwave Engineering and Technology · Vol. 2, Issue 2, 2016 · pp. 1–6 Read article
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COMPARISION OF MICROSTRIP BAND PASS AND BAND REJECT FILTER AT GSM BAND (1850MHz) USING DGS TECHNIQUE
Abstract: ABSTRACT- In microwave communication filters are more essential high frequency component. To improve the insertion loss the DGS technique is used. DGS i.e, (defected ground structure) is a technique where cuts are drawn on ground to impove the results and reduce the size of filters. Band pass and band reject filters are the filters which pass and reject the frequency. A band pass and band reject filter is designed with …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 2, 2017 · pp. 50–56 Read article
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Augmentation in Parameters of S Band Microstrip patch Antenna using Metamaterial with Varactor Diode
Abstract: In this paper S band rectangular microstrip patch antenna is designed and its parameters like return loss, band width, VSWR, directivity, radiation efficiency and size reduction are analysed. Then a metamaterial structure of “Split rectangular Rings” with thin wire strip is designed such that it exhibits negative permittivity and negative permeability at the same frequency as that of inset fed rectangular microstrip patch antenna. Here “Nicolson ross wear” (NRW) parameters …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 2, 2017 · pp. 32–40 Read article
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Aggrandize of Microstrip Antenna Parameters with Metamaterial and Varactor Diode for Application of Reconfigurable Antenna
Abstract: Abstract –In this paper , a new matametrial structure (MTM) implemented in microstrip transmission line configuration is proposed and its parameters like return loss, gain and bandwidth are analyzed. Hence a metamaterial structure of “wired and Interconnected Rings” is designed such that it exhibits negative permittivity and negative permeability at the same frequency as that of inset fed rectangular microstrip patch antenna. Here NRW parameters are used to verify negative …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 2, 2017 · pp. 41–49 Read article
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Design and Analysis of S-Band Microstrip Patch Antenna by Using Tunable Metamaterial
Abstract: In this article, we study about the new approach of tunable metamaterials and design a suitable structure for a patch antenna for S-band in which we are compare the return loss, directivity and the gain of the antenna. All results of the simulation are done by CST Microwave studio simulation software.
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 1, 2018 · pp. 1–5 Read article
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Review on the Designs and Characteristics of High-Electron Mobility Transistors
Abstract: Many authors have presented different physics based analytical models to manifest the characteristics of high electron mobility transistors (HEMTs). The designs of HEMTs are highly important to achieve sufficient efficiency. Conduction band engineering in HEMTs is the reason to generate a two-dimensional electron gas (2DEG) at the heterointerface. Microelectromechanical systems (MEMS) and microwave engineering are the relevant areas for the applications of HEMTs.
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 1, 2018 · pp. 20–41 Read article
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Quad-Band L-Shaped Slots Integrated Microstrip Patch Antenna for Radio Frequency Energy Harvesting Applications
Abstract: This study presents an L-shaped slots integrated Microstrip antenna for Radio frequency (RF) energy harvesting applications. It is designed on FR-4 Epoxy substrate material with the coverage of four bands (GSM-900, GSM-1800 Wi-Fi sources 2400, and 3300MHz frequency band allocated for WiMAX applications) of cellular communication. The proposed L-shaped slots antenna consists of four symmetric/asymmetric stubs and four symmetric L-shaped slots. L-shaped slots are integrated inside a square patch of …
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 2, 2018 · pp. 6–14 Read article
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A Review Paper on Methods of Microstrip Patch Antennas for Modern Applications
Abstract: ABSTRACT Substandard bandwidth execution is a normal for microstrip patch antennas and bandwidth improvement is a most critical test when designing patch radiators. Small size wideband microstrip patch antenna with different method of design such as slot load patches of different location, size and shape, multiple patches, fractal structures, EBG structures that shows the variation of resonant frequencies, higher percentage of Bandwidth, provide desired alignment of radiation with mathematical equation …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 1, 2019 · pp. 1–13 Read article
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A Single Band Hexagonal Shape Microstrip Dipole Antenna for LTE Application
Abstract: ABSTRACT The dipole antenna or dipole aerial is one of the most important and usually used types of RF antenna. It is widely used on its own, and it is also incorporated into lots different RF antenna layout where it forms the driven element for the antenna. In this paper, strive has been made to analyse new single band hexagonal shape dipole antenna for LTE application. The simulate and experiment …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 1, 2019 · pp. 31–35 Read article
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Study of Different FSO System Transmitter and its Power Factors
Abstract: ABSTRACT Free space optics (FSO) is a communique technology uses that light propagating in free space to transmit data between points. The generation is beneficial where the bodily connections with the aid of the approach of fiber optic cables are impractical because of high charges or different issues starting with a formal definition and overview of the era, it goes on to explain the considerations for the transmitter and receiver. …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 1, 2019 · pp. 14–18 Read article
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Simulation and Analysis of the Slip Recovery Energy Method for the Speed Control of Three-phase Slip Ring Induction Motor
Abstract: ABSTRACT This paper describes the energy savings in large electric drives by using implementation of “Slip Power Recovery Scheme”. The primary intention of this paper is to furnish direction for selecting and employ electric drives supported on energy efficiency and life-cycle cost. Slip power recovery wound rotor induction motor drives are used in high power, limited speed compass applications where control condition of slip power gives the variable speed drive …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 1, 2019 · pp. 24–30 Read article
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Design and Analysis of Broadband Flexible Antenna for Remote System
Abstract: ABSTRACT In this anticipated antenna, jeans have been utilized as a substrate. The dielectric constant of substrate is 1.7 and patch has been made by copper tape. The benefits of jeans are long wearing, simple consideration attire, and cost effective. This anticipated antenna provides gain of 3.592 dBi at 5.27 GHz. In this paper, the analysis has been focused on S11, radiation pattern, directivity and polar plot. Keywords: Jeans, microstrip …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 1, 2019 · pp. 19–23 Read article
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Combination of Triangular and Semi Circular Microstrip Patch Wideband Antenna for Wireless Application
Abstract: ABSTRACTThe combination of triangular and semi-circular wideband dipole antenna with single feed line is proposed for wireless application. The proposed antenna consists of Arrow shaped patch antenna operating at the wideband frequency of 1.6305GHz-3GHz. In this antenna material used for designing is FR-epoxy, height of the substrate is h=1.6mm. Dielectric substrate and relative permittivity are =4.3, tanδ=0.02. Keywords: Dipole antenna, Microstrip patch antenna, Wideband antenna.Cite this Article: Sandeep Barua, Combination …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 2, 2019 · pp. 8–12 Read article
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A Close-Packed Tri-Band Multi- Input Multi- Output Antenna System With DGS
Abstract: ABSTRACTIn this manuscript, A Close-packed tri-band multi input multi output antenna system with defective Ground structure for Electronic countermeasure application is proposed. Two monopoles are placed on the one end of the PCB and spaced 10mm apart. Near field of two identical monopoles creates mutual coupling that is reduced by placing metal strip (2x19) mm2 on the ground plane. The Projected Wang-formed DGS (Defective Ground Structure) of size (20x16) mm2 …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 2, 2019 · pp. 1–7 Read article
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Dual Band Integrated Elliptical Slot Microstrip Patch Antenna for RF Energy Harvesting
Abstract: ABSTRACTIn this paper, a dual band microstrip patch antenna is designed for Radio Frequency Energy Harvesting (RFEH) applications. The proposed antenna covers signals from 2300 MHz to 2400 MHz and 2450 MHz to 2550 MHz. The proposed dual band patch antenna is loaded on FR-4 lossy substrate with thickness of 1.6 mm. The elliptical circle and stubs are integrated on the radiating patch which is used for increasing the resonating …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 2, 2019 · pp. 13–20 Read article