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Recent content by Irshad Ahmed

  1. I

    Simulation of Single Balanced Mixer using ADS

    Hi, can you help me out here while calculating noise figure for the down conversion mixer I am using the pnoise analysis coupled with pss analysis but while plotting output(results-direct plot-pnoise) I do not seem to get the sweep of lo power in the output waveform I am getting only dots at the...
  2. I

    parameters in gpdk180nm

    yeah, thats right that will be given in the pmos1.scs file, I actually want to calculate the bias voltage that has to be given to the transistors in the mixer design inorder to calculate the Vgs that has to be given for it to work in saturation region. the calculation of mobility of holes will...
  3. I

    parameters in gpdk180nm

    µn is the mobility of electrons and µp is the mobility of holes which can also be given by parameters kn,kp; where kn=µnCox and kp=µnCox
  4. I

    parameters in gpdk180nm

    Hi, I need to find the values of vth,un,up,cox for basing the transistors in design. I am using 1.8v supply I have attached the nmos1.scs file. ************************************************************************nmos1.scs***************************************************************** *...
  5. I

    getting parameter values from gpdk180n

    Hi, I need the values of vth, un,up and cox in order to calculate the bias voltages but i dont know how to calculate it form the nmos1.scs file. I am pasting the parameters given in the file.My supply voltage is 1.8v and I want my transistors to work in saturation mode. Please help me . Thanks...
  6. I

    operation of current bleeding mixer

    thanks...but how should i know that the mixer is downconverting the frequency, because for any circuit NF and Conversion gain still exists even if doesnot function as a mixer ....
  7. I

    operation of current bleeding mixer

    hi I have just started using cadence, can anyone guide me how to check whether a mixer is functioning properly, i.e. it is downconverting the frequency? Thanks
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