Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Recent content by liudehua

  1. L

    Why MOSFET must be biased in saturation region for amplification?

    thank you. this is the most comprehensive answer i could find online so far.:grin:
  2. L

    Why MOSFET must be biased in saturation region for amplification?

    u r correct!:razz: thank you - - - Updated - - - u r correct!:razz: thank you
  3. L

    Why MOSFET must be biased in saturation region for amplification?

    Why MOSFET must be biased in saturation region for amplification instead of triode region? i have realised that hand analysis is much easier by biasing the mosfet in the saturation, but now equipped with simulation tools, triode region might give us some improvements on the functions of...
  4. L

    Fourier Transform and fourier series

    you can write a fourier series for an aperiodic signal on a certain region, e.g [-A,+A], and take the length of the region, i,e 2A, as the period. by doing so, the original function becomes periodic, and you could write its fourier series over [-A,+A].
  5. L

    Prospects of Short range communication--60Ghz/ MM-wave /visible light communication

    if the corresponding chips are not well adopted by the industry, would i be able to find a job after i graduate with PHD in about 5 years time? thanks:grin: - - - Updated - - - i am fine. don't worry about it! could u pls give me some insights then?
  6. L

    Prospects of Short range communication--60Ghz/ MM-wave /visible light communication

    i graduated from a lowsy university from Singapore,a small place. please don't despise me becos of my origin and poor mastery of enginnering "common sense". i am a poor newbie, please give me some advice on the prospects of the MM wave/60Ghz technology:oops:
  7. L

    Prospects of Short range communication--60Ghz/ MM-wave /visible light communication

    yes, i just graduated and am deciding whether to study for PHD now.:oops:
  8. L

    Prospects of Short range communication--60Ghz/ MM-wave /visible light communication

    becos a cable would at most costly you a dollar. why spend billions of money on removing such cheap cables?:razz:
  9. L

    please help me understand the significance of substitute s=jw in a transfer function

    thanks, but i am still blurred about it. my textbook(sedra/smith microelectronic circuits) doesnt mention s=sigma+jw, but jw only?
  10. L

    please help me understand the significance of substitute s=jw in a transfer function

    could someone help me prove the following statement in my textbook? "replacing s by jw provides the transfer function for physical frequency w, that is, the transmission magnitude and phase for a sinusoidal input signal of freqency w" i could some how understand it ambiguously, but cannot...
  11. L

    Prospects of Short range communication--60Ghz/ MM-wave /visible light communication

    From my current understanding, it is now mainly for cable replacement, which to me is kind of useless. should i study in this field for my PHD? thanks

Part and Inventory Search

Back
Top