M Tech Dissertations

Permanent URI for this collectionhttp://drsr.daiict.ac.in/handle/123456789/3

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Author: search.filters.author.Gupta, Amit Kumar

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    Design issues in direct conversion receiver
    (Dhirubhai Ambani Institute of Information and Communication Technology, 2009) Gupta, Amit Kumar; Gupta, Sanjeev
    The wireless system is being rapidly proliferated in our life. The growing of capacity in wireless communication requires a new type of wireless communication method which does not affect current work on circuits and systems that can operate on gigahertz wide signals will undoubtedly be the wave of the future as pressures to supply multimedia services over wireless continue to build. To achieve the goal of single receiver which can act on various different standards the Direct Conversion Receiver (DCR) is the most suitable architecture. The DCR has been known for quite long years. There are number of design issues related to the implementation of DCR. This thesis presents the issues which are related to design of Direct Conversion along with the design issues related to LNA design.
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    CMOS latched comparator design for analog to digital converters
    (Dhirubhai Ambani Institute of Information and Communication Technology, 2007) Gupta, Amit Kumar; Parikh, Chetan D.
    Conventional comparators are at the two extremes as far as power delay product and isolation between input and output is concern. Either they achieved very good isolation at the cost of power in the preamplifier or save the static power dissipation in preamplifier in the latching mode which increases the feed through. In this thesis work we propose an optimized CMOS Latch Comparator. The simulation result based on .18um technology, shows the working of the comparator at 500 MHz, with moderate power delay product and isolation compared with the conventional architecture.