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Recent content by tch77_pt75

  1. T

    Any recommendation for RF book

    I am looking for RF related book that relates the following. Are there any books that you will recommend. -- Modulation / Demodulation scheme for GSM -- Modulation / Demodulation scheme for Wi-Fi, Wi-Max, Bluetooth -- Modulation / Demodulation scheme for remote control aircraft -- Modulation /...
  2. T

    What is the relation between Freq vs Distance AND BW v Dist

    Can anyone point me to the formula that relates the following: Formula for Freq vs Distance Formula for Freq vs Bandwidth
  3. T

    Similiar product compared to NI PXIe-5663

    I have came across the National Instrument PXI-5663 Vector Signal Analyzer with Digital Down Conversion that has a frequency range of 10MHz to 6.6GHz. Are there any equivalent product besides the above mentioned?
  4. T

    How do I detect that a signal is a WIFI signal and not noise

    Re: How do I detect that a signal is a WIFI signal and not n If I have WIFI signal and noise transmit in the air, what will their results be when I performed the demodulation? Also, how do their constellation plot look like?
  5. T

    How do I detect that a signal is a WIFI signal and not noise

    I am able to view the RF spectrum currently but how do I differentiate between a WIFI and noise signal?
  6. T

    Skew in digital circuits

    Hmm, How to measure it using HSPICE. Any example of the HSPICE command?
  7. T

    Skew in digital circuits

    Take for example the clock skew between Register A and B. It means the delay of the clock signal to these registers. How to use HSPICE to measure it?
  8. T

    Skew in digital circuits

    Does anyone know how to measure skew in digital circuits, i.e the HSPICE command? Thank you
  9. T

    HSPICE error message please help.

    I think it is worth a try. Also, what happen when you do not use the: .option post=1? Do you still face the same problem?
  10. T

    How to design a buffer to drive a wire of 1500 to 3000um

    Hi Sinina, basically it is an experimentation whereby I am trying to drive this long wire of 3000um. In my HPSICE simulation, I have tried to use a buffer( 2 inverters) with supply voltage of 1V to observe the impact of driving this long wire. From the waveform, it is noted that it took 3ns...
  11. T

    HSPICE error message please help.

    Maybe you should try to cut down on the simulation time to determine whether do you still encounter the same problem.........Hope it helps
  12. T

    How to design a buffer to drive a wire of 1500 to 3000um

    My apology if I am not that precise. So, based on the scenarios that I have given so far, what are the info that are required?
  13. T

    How to design a buffer to drive a wire of 1500 to 3000um

    You are correct to say that. It is like a saw tooth waveform.......charging up slowly and discharging at a faster rate. Any idea how to resolve this issue?
  14. T

    How to design a buffer to drive a wire of 1500 to 3000um

    Initially I do agree but it will take about 3ns for the signal to travel from one end of the wire to the other end of the wire when it changes from logic 0 to 1. But however, it takes less than 500p-sec to travel from one end of the wire to the other end of the wire when the logic changes from...
  15. T

    How to design a buffer to drive a wire of 1500 to 3000um

    The connection is as follows: Device A driving device B through a wire of 1500 to 3000um. Is there a super duper solution to drive this long wire in order to ensure the signal integrity?
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