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2018 - 20193
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Subject: Electronic and Communication Engineering ×

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Now showing 1 - 3 of 3
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    ThesisItemOpen Access
    Identification of Worm Hole Attack in MANET using Cluster based Approach
    (Department of Electronics and Communication Engineering VAUGH INSTITUTE OF AGRICULTURAL ENGINEERING AND TECHNOLOGY SAM HIGGINBOTTOM INSTITUTE OF AGRICULTURE, TECHNOLOGY AND SCIENCES (FORMERLY ALLAHABAD AGRICULTURAL INSTITUTE) NAINI, PRAYAGRAJ (ALLAHABAD)-211007, 2019) MISHRA, PRAKHAR; KISPOTTA, ER. ASHUTOSH
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    ThesisItemOpen Access
    ANALYSIS OF DOMINO AND REVERSIBLE HNG LOGIC CIRCUIT
    (DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING SHEPHERD INSTITUTE OF ENGINEERING AND TECHNOLOGY SAM HIGGINBOTTOM UNIVERSITY OF AGRICULTURE TECHNOLOGY AND SCIENCES, ALLAHABAD-211007 INDIA, 2018) Agrawal, Naresh Chandra; KUMAR, Dr. ANIL
    In this thesis, analysis of benchmark circuits of existing domino logic circuit and Reversible Logic for the overall functionality is described. In the present work it is observed that the classical advantage of high speed operation, Domino logic family suffers from low noise sensitivity and large power consumption. Dynamic CMOS logic gives advantage in terms of testability over static CMOS circuits. Significant research has been going to stabilize this domino with reference to designing parameters. However, extra added transistors are not readily testable for stuck-open faults. Not traceable the stuck-open faults in transistors may be the reason of drop in noise margins and therefore it may affect the reliability of the circuit. The testability issue has been reported to solve the undetected TSOP problem associated with secondary precharge transistors. Moreover in reversible logic, the comparisons between existing conventional circuits are for propagation delay, garbage in, garbage out for 1 bit ALU in Reversible Logic techniques. The 1-bit reversible ALU, i.e. reversible control unit and reversible full adder unit, using reversible HNG logic gates is analyzed. We have taken three control signals which perform 8 arithmetic operations and 7 logical operations. Reversible computing has its great significance in reducing the complexity of the digital circuits. Reversible logic has different areas for its application, which are low power CMOS, quantum computing, nanotechnology, cryptography, optical computing, DNA computing, digital signal processing, quantum dot cellular automata, communication and computer graphics.
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    ThesisItemOpen Access
    PERFORMANCE ANALYSIS OF MULTI BAND AND ULTRA WIDE BAND MICRO STRIP PATCH ANTENNAS
    (DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING SHEPHERD INSTITUTE OF ENGINEERING AND TECHNOLOGY SAM HIGGINBOTTOM UNIVERSITY OF AGRICULTURE TECHNOLOGY AND SCIENCES ALLAHABAD, U.P. - 211007, 2018) CHANDRABHAN, CHANDRABHAN; KUMAR, ANIL
    In this thesis, performance analysis has been carried out under three cases of Microstrip Patch antennas which are described sequentially in the following paragraphs. Case 1:. In case1, an innovative hypothetical feeding technique has been applied on a simple square micro strip patch antenna with design variations in shape of the copper lamination embedded on the surface of substrate volume being 40x40x1.56 mm3. The feeding technique has resulted to generate an ultra wide band from 100MHz-100GHz with usable ultrawide bandwidth of 0.1GHz-54GHz with sufficient gain and proper reflection coefficient below -60dB. The patch has been fed by coax feed which has been designed by replacing the inner and outer conductors with vacuum( no conductors) and the patch is in line fed by a via and wave port is assigned below the feed point but at the moment ,it seems little bit difficult to practicalize. This technique gives an idea that micro strip patch antenna is fed by waveguide filled with dielectric or a waveguide made by dielectric itself and filled with dielectric material or a plastic pipe filled another dielectric like air, there rises a probability to achieve ultra wide band operation. Case2: A primitive square patch loaded with a rectangular notch behavior is observed by varying the geometry of the patch antenna. The variation having been brought by integrating Koch geometry (created by Triangles: T) at corners of the antenna1 (Ant1) patch yields further five different antenna structures (Ant. str.: Ant2, Ant3, Ant4, Ant5, and Ant6). The resulted antennas can be utilized for dual band and triple band operations in Ku- band and lower vestige of K- band for wireless applications. Although all the structures offer better return loss in terms of S11(dB), reasonable gain, efficiency and voltage standing wave ratio (VSWR) over all bands of operation, yet triple band antenna structure 6 has been put forth on the basis of total bandwidth (10.45%,9.49%,7.59%) and VSWR (1.03,1.29,1.23 ).The fabricated antenna6 shows the measured bandwidth (8.75%,6.45%,3.70%) and VSWR (1.27,2.0,1.57). Case 3: In this paper, a notch loaded stacked ultra wide band elliptical microstrip patch antenna is proposed for Ka- band wireless applications. The return loss S11(dB) , voltage standing wave ratio (VSWR), Gain , radiation efficiency and radiation patterns have been analyzed over the ultra wide band of frequency range of 30-40 GHz in Ka band.