All articles
612 articles
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Microwaves-Impact on our living!
Abstract: Electromagnetic Field (EMF) radiation is the flow of photons through space. Each photon contains a certain amount of energy, and the different types of radiations are defined by the amount of energy found in the photons. The electromagnetic spectrum is the range of all types of EM radiation. X-rays used in hospitals or the radio waves from a radio station are all part of this spectrum. Even when a building …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 1, 2015 · pp. 20–22 Read article
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A Comparative Analysis of a Single Feed Circularly Polarized Micro-strip Patch Antenna with U-Slot & L-Slot
Abstract: This paper compares the different parameters for a single feed circularly polarized Micro-strip patch antenna with U-slot and L-slot. The proposed antenna 1 contains a U-Slot and designed with DGS technique to reduce the size of antenna and proposed antenna 2 contains a L-slot and designed with DGS technique to reduce the size of antenna. The antenna with L-slot is designed on a high dielectric constant (εr = 10.2) substrate …
Published in International Journal of Broadband Cellular Communication · Vol. 1, Issue 1, 2015 · pp. 6–11 Read article
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Output regulation of hybrid renewable energy system through hysteresis control
Abstract: This paper proposes a hybrid energy conversion system combining photovoltaic and wind turbine as a small-scale alternative source of electrical energy where conventional generation is not practical. The hybrid system consists of photovoltaic panels, wind turbines and storage batteries. A new system configuration of the front-end rectifier stage for a hybrid wind/photovoltaic energy system is presented in the paper. It allows configuration allows the two sources to supply the load …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 1, Issue 1, 2016 · pp. 9–20 Read article
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Text Data Hiding and Extraction of Image using Discrete Wavelet Transform
Abstract: Now a day with the wide use of multimedia is increasing to a large extent, the visual information that contains the high quality and low complexity digital images plays a very vital role in daily life applications such as satellite television, magnetic resonance imaging, computer tomography, geographical information systems and astronomy and many other areas. Main purpose of this paper is to investigate or develop new concepts to design digital …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 16–22 Read article
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A Genetic Algorithm for Optimization of MSE & Ripples in Linear Phase Low Pass FIR Filter & Also Compare with Cosine Window Techniques
Abstract: Cosine Window Techniques such as Hamming, Hanning etc. are used to simply design the Finite Impulse Response (FIR) digital Filters. Window function is a scientific function which works on Mathematics by calculating the impulse response of best digital filters. Windowing function is mainly conciliation between the reduction of ripples and Mean Square Error (MSE). But in the proposed research work; Genetic Algorithm (GA) reduces more MSE as well as ripples …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 9–15 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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Application of Rectangular Patch Antenna for a Moisture Content Sensor
Abstract: Micro-strip patch antenna is a low cost, easy to fabricate, light weight which is used for transmit and receive electromagnetic wave. This paper tells about the micro-strip rectangular patch antenna moisture sensor for different types of rice which are basmati rice and ambemohar rice both are easily available in Indian market and it has been measured by using two different substrate RT-duroid 5880 and FR4 lossy. A relationship is to …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 1, 2015 · pp. 5–9 Read article
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Low Profile Planar Inverted-F Antenna With Triangular Ground Plane
Abstract: Abstract: The design of miniaturized micro strip antenna plays a very vital role in development of portable wireless communication systems. The resonance frequency, bandwidth and gain of an antenna directly depend on its dimensions. The idea is to find best geometry and structure which can be accommodated in the typical space available in a communication device. The planar inverted –F antenna is very popular for such portable wireless devices because …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 1, 2015 · pp. 1–4 Read article
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NOVEL TECHNIQUES FOR ENERGY CONSERVATION IN WIRELESS SENSOR NETWORKS (WSN)
Abstract: The rapid growth of wireless services in recent years is an indication that considerable value is placed on wireless networks. Wireless devices have most utility when they can be used anywhere at any time. Yet one of the greatest challenges is limited energy supply. In the recent years, Wireless Sensor Networks (WSN) has gained good attention from both the research community and actual users. As sensor nodes are generally battery-energized …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 7–26 Read article
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A Study of Mobile Communication Systems for Fourth Generation
Abstract: In this paper, research and development efforts for apprehending the Fourth-Generation (4G) mobile communication system has been discussed. It helps in providing satisfactory expectation to the users for having advanced wireless access even in the mobile environments. This paper features, the requirements of the particular system, solving of technical challenges and gives description about the activities involved in the standardization of the 4G mobile Communication system. Keywords: OFDMA, MIMO, 4G …
Published in International Journal of Broadband Cellular Communication · Vol. 1, Issue 1, 2015 · pp. 1–5 Read article
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Logarithmic Companding using Firefly Algorithm for PAPR Reduction in OFDM System
Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is a digital transmission method developed to meet the increasing demand for higher data rates in communications which can be used in both wired and wireless environments. However OFDM is handicapped with a major problem of high peak-to-average power ratio (PAPR), which gives rise to non-linear distortion, inter-symbol interference and out-of-band radiation. Several PAPR reduction techniques have been devised over the last few decades in …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 1–8 Read article
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Denoising of Computer Tomography images using Wavelet based Multiple Thresholds Switching (WMTS) filter
Abstract: Computer Topography images are often corrupted by salt and pepper noise during image acquisition and /or transmission, reconstruction due to a number of non-idealities encountered in image sensors and communication channels. Noise is considered to be the number one limiting factor of CT image quality. A novel decision-based filter, called the wavelet based multiple thresholds switching (WMTS) filter, is used to restore images corrupted by salt-pepper impulse noise. The filter …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 1–6 Read article