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    Design of a Wide Band Power Amplifier for Power DAC

    , M.Sc. Thesis Sharif University of Technology Hassani, Keyvan (Author) ; Sharifbakhtiar, Mehrdad (Supervisor)
    Today’s radio transmitters must be able to send information in several standards. One problem involved in these wide band electronic systems lies in its end part, ie power amplifier. To have a broad band width either switching must be made among several power amplifiers with narrow band width (tuned) or the transistor part of power amplifier must be the same and single and selection be made only among matching networks. In this thesis, a power amplifier with broad band width without requiring a matching network has been designed and laid out. Also considering the low breakdown voltage of the gate oxide of the today’s standard CMOS transistors, it is very difficult to get a high output power... 

    Design & Implement C-band Highly Linear Low Noise Amplifier in GaAs pHEMT Technology

    , M.Sc. Thesis Sharif University of Technology Khaledian, Dyako (Author) ; Medi, Ali (Supervisor)
    Todays the use of microwave integrated circuits for military and commercial applications has gained much attention, especially riththe advent of monolithic microwave integrated circuits, which provide the possibility of fabrication of amplifiers in large number, sufficient accuracy and affordable price.GaAs pHEMT process, because of good characteristics for noise and power in high frequencies, is a good choice for microwave and millimeter wave integrated circuits. A low noise amplifier is a key block in the receiver and, its noise figure, gain and linearity directly affects the sensitivity and dynamic range of the receiver. Hence, a low noise amplifier with low NF, high gain, good return...