All articles
612 articles
-
Design a Compact Microstrip Patch Antenna on a Center Frequency of GSM Band with DGS for Gain Enhancement
Abstract: In this paper, a compact dual band microstrip patch antenna has been designed on a center frequency of GSM band (800–900 MHz) and (1800–1900 MHz) using the DGS technique. The resonating frequency of this antenna 0.845 and 1.850 GHz, the proposed antenna is designed on an FR4 lossy substrate with dielectric constant 4.3, thickness 1.6 mm and loss tangent 0.02. The main objective of this paper is to increase the …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 2, 2017 · pp. 1–6 Read article
-
Analysis and Design of Frequency and Gain of Dual Band Equilateral Triangular Microstrip Patch Antenna with DGS Using ANN
Abstract: A Dual-frequency equilateral triangular microstrip patch antenna using defected ground structure of c-band and s-band with enhanced gain has been designed with frequency of 2.82 GHz and 5.19GHz. The design and simulation of antenna is performed by CST.We have analyzed that after insertion of DGS(Defected Ground Structure) in equilateral triangular microstrip patch antenna presents marked improvement in gain. Artifical neural network is used in computation of frequency of equilateral triangular …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 2, 2017 · pp. 19–31 Read article
-
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
-
Performance Analysis of Mobile Ad Hoc Network With Variation of Antenna Height Over Fading Channels
Abstract: Ad-hoc network does not rely on any preexisting infrastructure which is very helpful in disaster recovery situation and the place where the no pre-existing infrastructure or where rapid deployment of a communication network is needed. In this paper, the impact of variation of antenna height over different fading environment is investigated. For this purpose, Qualnet6.1 simulator has been used and the performance of wireless network by varying antenna height is …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 2, 2017 · pp. 1–7 Read article
-
An Overview of Spectrum Sensing Techniques in Cognitive Radio Network
Abstract: Cognitive Radio enhances the utilization of unused spectrum and globalized the radio environment for different band users that make use of several spectrum sensing techniques for transmission spectrum which includes spectrum usage characteristics across multiple dimensions such as frequency, space, time and code and determining what type of signals are occupying the spectrum. The existing works in spectrum sensing are reviewed, and important issues in dynamic spectrum allocation and sharing …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 1, 2017 · pp. 29–33 Read article
-
Comparative Analysis of Spectrum Sensing Technique in Cognitive Radio Network
Abstract: Cognitive Radio enhances the utilization of unused spectrum and globalized the radio environment for different band users that make use of various spectrum sensing techniques for transmission spectrum which involves spectrum usage characteristics across multiple dimensions such as time, space, frequency, and code and determining what type of signals are occupying the spectrum. In this project, cognitive radio spectrum sensing techniques are analyzed and Receiver operating characteristics of “Energy detection”, …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 1, 2017 · pp. 20–28 Read article
-
Compare of Static and Dynamic Energy Efficient Clustering Techniques Using Fuzzy Logic in Wireless Sensor Network
Abstract: A wireless device network (WSN) often checks physical or environmental conditions and sends the collected information to a base station (BS) through network. In WSN, clustering is wide used technique for protracting network period of time as clustering is economical technique for reducing energy dissipation. Clustering joins along many device nodes to create cluster and performs election for choosing Cluster Head (CH) for all the clusters. In clustering technique CH …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 1, 2017 · pp. 10–19 Read article
-
Digital Pulse Compression Waveform Generation by Using of Digital Matched Filter
Abstract: Digital pulse compression is the technique for detection of the targets through radar. It is done by Matched Filter in signal processing system. The presence of signal with noise is compressed. At some finite interval of time the high peak amplitude of signal with narrow bandwidth gives the idea of the number of targets present away from the radar. Matched filter gives the signal to noise ratio at the receiver …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 1, 2017 · pp. 34–39 Read article
-
Circular Head-Shape Slotted Circularly Polarized Microstrip Antenna
Abstract: In this paper, one of the important parameter a is circular polarization. The design consists of square microstrip patch antenna using circular head-shape slot in second quadrant of the patch. Microstrip patch antenna is low profile, low cost antenna. A design of coaxial feed circular polarized, square shape microstrip antenna is presented and simulated by using CST 2010 and 4.4 relative permittivity law cost FR-4 (lossy) substrate are used. The …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 1, 2017 · pp. 18–22 Read article
-
Design Technique of FIR Digital Filter Using Various Window Function
Abstract: This paper presents a design approach of finite impulse response (FIR) digital low pass, high pass, band pass and stop band filter using window method. In this work FDA tool has been used for design of FIR digital filter with hamming, hanning and Kaiser window function because better frequency response has been achieved by these window for design of all digital FIR filter but specially for band pass and stop …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 1, 2017 · pp. 23–28 Read article
-
Design of Transmitter and Receiver to Reduce PAPR and ISI in Multi-Carrier OFDM System: A Review
Abstract: In wireless communication, concept of the parallel transmission of symbols is used to achieve high throughput and better transmission quality. Orthogonal Frequency Division Multiplexing (OFDM) is one of the techniques for parallel transmission and it converts frequency selective fading channel into N flat fading channels, where N is the number of sub-carriers. orthogonality is maintained by keeping carrier spacing multiple of 1/Ts by using Fourier transform methods, where Ts is …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 43–51 Read article
-
Simulation and Analysis of 6 Antenna Array at 0.9 GHz GSM Band
Abstract: In this paper comprises simulation of 0.9 GHz Antenna array as well as analysis of various parameters and performance was discussed. This array was made up of by joining 6 identical antennas in serial and parallel both manner. Non DGS technique was adopted for simulate Antenna array. The working resonant frequency of antenna array was 0.9 GHz i.e. GSM Band. The simulation of array was done with the use of …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 52–57 Read article
-
Gain Enhancement of a Filtenna Using Defected Ground Structures Technique
Abstract: This paper presents a compact filtenna with enhanced gain by improving the structural shape of filtenna using defected ground structure(DGS) technique. A filtenna is an integration of a filter and an antenna into a one device. This combination leads to the reduction in the system size, weight cost and complexities. The proposed filtenna consists of a hairpin bandpass filter and a hexagonal-shaped microstrip patch antenna. The filtenna without DGS has …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 35–42 Read article
-
Biometric Attendance System
Abstract: An ARDUINO UNO is a microcontroller board based on the ATMEGA328. It has 14 digital input/output pins(of which 6 can be used as PWM outputs), 6 analog inputs ,a 16MHz crystal oscillator, a USB connection, a power jack , an ICSP header , and a reset button. It contains everything needed to support the microcontroller, simply connect it to computer with a USB cable or power it with an AC-to-DC …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 23–28 Read article
-
Voice Command Automation using Arduino Pro Mini
Abstract: Arduino, the family of the open-source single-board microcontrollers, puts that power in the hands of consumers, allowing serious programmers alike to program their own interactive objects. In this paper we have used arduino pro mini and android mobile to recogize the voice command and compare it with the text. Thus, it automatically detects voice commands.
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 16–22 Read article
-
Digital Temperature Sensor using ATmega8 Microcontroller
Abstract: In this paper we have discussed about the digital temperature sensor using ATmega8 Microcontroller that is used to display the temperature. It is an embedded system in which temperature sensor, 7 segment display and resistors are interfaced with the microcontroller. Here, we have to use analog to digital converter to convert the analog value obtained from the temperature sensor into the digital value.
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 13–15 Read article
-
Wheat Grain Quality Analysis Using Image Processing
Abstract: Rice and Wheat are two major staple cereals used globally. In India too, both of these crops are cultivated and consumed in large quantities. In this article, we are demonstrating an image processing approach to segregate bad quality wheat seed grains from the good quality. Wheat is not only the source of carbohydrate, but it also contains protein in ample amounts. The protein content in wheat is higher than that …
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 1, 2017 · pp. 35–42 Read article
-
TRANSMISSION PARAMETERS OF TWO PORT CIRCUITS USING SPICE SIMULATION
Abstract: Models for linear two port analysis are given. The ABCD parameter determination using SPICE2/Pspice is carried out. While the first procedure and files are for the calculation of ABCD parameters where the circuit is purely resistive and dependent sources, the second is for general two port network using linear elements and small signal models of active devices. In the second method the frequency description of analog behavioral modeling options of …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 1, 2017 · pp. 11–17 Read article
-
Introduction to Embedded System
Abstract: The embedded systems industry was born with invention of microcontrollers and since then it has evolved into various forms, i.e. from primarily being designed for the machine control applications to various other new verticals with the convergence of communications. Various classes of the embedded systems such as home media systems, portable players, smart phones, embedded medical devices and sensors, automotive embedded systems have surrounded us and with continued convergence of …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 9–12 Read article
-
FIBER BRAGG GRATING- For optimal performance in optical systems
Abstract: In this paper FSO link is analyzed for 650nm wavelength operation. Simulation results provide maximal link range of around 2540 meters using visible light red spectrum. The bit rate obtained for optimized link is 10Gbps. The performance of proposed link can also be improved for sustainability of communication channel in various weather conditions and is evaluated on the basic of parameter like BER, Q factor and eye diagram. For θdiv …
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 1, 2017 · pp. 20–26 Read article