Browsing M Tech Dissertations by Author "Gupta, Sanjeev"

Now showing items 21-31 of 31

    • Integrated receiver front-end: system level architectures and design issues for CDMA based applications 

      Sharma, Ashish kumar (Dhirubhai Ambani Institute of Information and Communication Technology, 2004)
      During the last decade, the world of mobile communications has experienced an enormous growth. Among the important factors has been possible by the migration from the original analog mobile phones to handsets using digital ...

    • Investigation on multi-band fractal antennas for satellite applications 

      Shah, Milind (Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
      Remote sensing is a very important application of satellite communication. In remote sensing applications, multiple frequencies are utilized. Use of different antennas for different frequencies is a complex task and so use ...

    • Linearity enhancement technique for low noise amplifiers 

      Purohit, Amit Gopal M. (Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
      The development of CMOS technology in to deep sub micron enables the use of such technology for implementation for GHz RF circuits. Personal communication needs a low cost and low noise RF transceiver for cellular applications ...

    • Low noise amplifier design at 2 GHz 

      Mavani, Kausha (Dhirubhai Ambani Institute of Information and Communication Technology, 2011)
      Low Noise Amplifier (LNA) is one of the most important building blocks of any wireless receiver. In this an attempt has been made to study two types of LNA designs. The first design is the conventional which consists of ...

    • Multi band fractal antenna for satellite application 

      Kalariya, Vishalkumar Rameshbhai (Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
      Fractal Antenna is the current topic for the research engineering because Fractal Technology allow us to design miniature antennas and integrate multiple band in single device. This antenna is a type of Micro strip antenna ...

    • Novel circular fractal antenna array 

      Chauhan, Rahul (Dhirubhai Ambani Institute of Information and Communication Technology, 2018)
      Traditional antennas work well only for one resonant frequency and using multiple antennas for different frequencies is a complex task, therefore multiband circular fractal antenna was designed which have a small size and ...

    • Radiation analysis of microstrip active (amplifier) and passive (antenna) structures 

      Dhoot, Vivek (Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
      Analysis of radiation from a microstrip amplifier and a newly proposed microstrip antenna is presented. Microstrip amplifier is analyzed replacing the MMIC structure by an equivalent S2P model and remaining portion being ...

    • Shorted microstrip patch antenna 

      Bala, Shashi (Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
      In this thesis, electrically small microstrip patches incorporating shorting posts are thoroughly investigated. These antennas are suitable for mobile communications handsets where limited antenna size is a premium. In ...

    • Study and development of computer aided tool for transceiver system design 

      Oza, Hiral D. (Dhirubhai Ambani Institute of Information and Communication Technology, 2004)
      The aim of this thesis is to develop the GUI-based interactive software, which assists in designing transceiver for any modern communication system including GSM, CDMA, HIPERLAN, and WLAN. There are many trade-offs between ...

    • Wideband active mixer with high gain and high linearity 

      Pandey, Vijay Raghav (Dhirubhai Ambani Institute of Information and Communication Technology, 2015)
      An active mixer is presented with improved conversion gain and linearity over a wide range of frequency. The mixer is combined with a low noise amplifier which not only provides braodband input matching but also cancels ...

    • Wideband active mixer with high gain and low noise figure 

      Mangukiya, Manishkumar (Dhirubhai Ambani Institute of Information and Communication Technology, 2016)
      This work presents active double-balanced down converter mixer with some modification. Gilbert topology provide overall good gain and LO-RF isolation. It has poor noise figure performance. It is narrow band in terms of ...