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Recent content by lucky8

  1. L

    Help regarding errors during simulation using CST MWS

    Do check the units that you are using. Ensure it is the correct one
  2. L

    a question about transmission line simulation@60GHz

    Hi, Try to use staggered vias instead of one straight via. Gud luck!
  3. L

    steps to design RF mixer

    steven maas mixer Thanks DDavid for the posts. Is the RFIC and MMIC design & tech written by I.D. Robertson and S. Lucyszyn? If yes, I already have the book. Btw, which chapter that you have posted from the book? As u may see, I’m quite short for the downloading points and I’m saving it for...
  4. L

    The correct BJT transistor selection

    bjt selection it is for a high frequency application
  5. L

    The correct BJT transistor selection

    transistor selection chart Hi, I have a problem in transistor selection. I get a few BJT transistors from a PDK. But I do not know to choose which one is suitable for my design. What transistor characteristics should I analyze in order to get the suitable one? Thanks lucky8
  6. L

    steps to design RF mixer

    design rf mixer Hi, I used to be in the IC designs but now I’ve changed to RF. At first I thought both RF and IC designs are similar, but the longer I’m in RF, I’ve decided that I was wrong. Are there any tips on the steps to design in RF (specifically Mixers). The transmission line...
  7. L

    how to anlayse gillbert cell

    how to bias the BJT? is it using a special biasing method or just normal biasing (active mode)?
  8. L

    BJT bias for 60GHz technology

    Hi I would like to ask, for 60GHz technology, is it possible to use BJT instead of FET or HBJT? If yes, how do you bias the BJT to suits the 60GHz frequency? Is it by process-wise or schemati-wise? Thanks
  9. L

    diode connected capacitor?

    Does the diode is actually a transistor with diode connection or its a real diode?
  10. L

    diode connected capacitor?

    Guyz, Need help to figure out the function of this diode connected capacitor (is it what it is called?). Comparing the 2 cct attached, the only diff. is the diode connected at the capacitor. The capacitor basically acts as phase compensation from input stage to the output stage, but by...
  11. L

    Years of experience in IC-level analog design

    1++ yr. Still need a lot to catch up :idea:
  12. L

    Who is your idole in Analog Design?

    I dun agree with bcchng I vote for Hirokazu (HEROkazu) Fukaya
  13. L

    Reduce push pull current

    "so - is your output voltage analog or digital?" -electronrancher my output voltage is analog and i'm making an op amp
  14. L

    Reduce push pull current

    Guyz Need your help. I want to reduce the current for the upper transistor in a push pull circuit. How can I achive this? I've tried to put a big resistor before the upper transistor but eventually, the source current (i.e.- current flowing out from the push pull) will be extremely low. Is...
  15. L

    factors affecting current mirror

    output voltage? do u mean the VCE? I've read that the output impedance is the measure of the current mirror quality, and how is that?
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