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Recent content by zubair.mehmood

  1. Z

    Noise analysis of demodulator

    hi the input and output frequency of the demodulator is different. Can any one guide me how to measure the noise figure in this case for a simple OOK demodulator. (any ref, cadence example) Thanks
  2. Z

    Balun Differential Matching

    Thanks FvM and BigBoss for your kind reply Actually i used s5p file as it has the EM simulated results of the balun. my balun ports setup is as follows: I am interested only in narrow band matching with center frequency of 120 GHz Thanks
  3. Z

    Balun Differential Matching

    hi i have made a balun with single ended input and differential output. My questions are: a) when and why we should AC ground the center tapped terminal? b) i have made the matching at input which was single ended but how will i made it for the differential output. i figured out the values of...
  4. Z

    HB analysis for QPSK modulator in cadence

    hi (PDF files are included) ? sorry i did not understand this. thanks
  5. Z

    HB analysis for QPSK modulator in cadence

    dear all i have implemented the qpsk modulator (active double balanced gilbert cell) and demodulator (passive). I want to check the conversion gain of the modulator and want to know about harmonic balance setup preparation in cadence. if you can guide me through any good link for literature...
  6. Z

    root raised cosine filter in cadence

    hi i tried to understand the following parameters for root raised cosine filter in cadence but did not getting correct o/p.: alpha over_samples group_delay frame_time numChipsOut can any one guide how to set the parameters for 50Gb/s square wave for OOK modulation. Thanks
  7. Z

    MOSFET long channel length

    hi what is the further benefits or tradeoffs in extending the channel length of a MOSFET more towards higher lengths. (Tradeoffs are clear with short channel and long channel) If we further increase the channel length , what may be the possibilities. Thanks
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