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Recent content by ET

  1. E

    Using Agilent 4284 LCR Meter to measure parasitic capacitanc

    agilent 4284 Is it effective way using Aglient 4284 LCR meter to measure c-v characteristic of mosfet? Agilent 4155c/4156c also provides the function of c-v measurement of mosfet? is it any difference ? I have read the related manual, still confused a little bit.
  2. E

    cmos Power amplifier device

    blf1822 transistor is for base station. is anything for the handsets? such as cellular phone, wireless card?
  3. E

    cmos Power amplifier device

    I am still curious about the cmos device for the RF power amplifier application. Is there any specification which describes how a cmos device should be when used to cmos RF power amplifier? In the meantime, I was told there is no cmos power amplifier product in the commercial market so far...
  4. E

    how to get gm3 using hspice

    the third order transconductance, gm3, how to obtain it in hspice? Thanks in advance for your help.
  5. E

    Looking for documents on mos varactors

    Re: help on mos varactors One of their typical paper is : http://www-smirc.stanford.edu/papers/VLSI98s-chet.pdf
  6. E

    Looking for documents on mos varactors

    Re: help on mos varactors SmirC@Stanford had published some papers on the accumulation mode varactor since 1998. You can google it by the key words: mos varactor at stanford website.
  7. E

    Some information about Ultra Wide Band systems

    Ultra Wide Band This url should be good, also. https://www.multispectral.com/history.html
  8. E

    Who has simulated the Phase Noise of PLL by SpectreRF?

    how to simulate for vco phase noise Hey, Flyinspace, I didn't do the simulation of a whole PLL, but I did some phase noise analysis a single LC-Oscillator and a ring-osicllator. Maybe I can help something. (1) I think an ac source signal is necessary, in terms of your first question. (2)...
  9. E

    About the gain of Operational Amplifier?

    How did u do the DC analysis? You changed the supply voltage?
  10. E

    the order of Chebyshev I bandpass filter

    immittance inverters Centerl frequency=5G Bandwidth=(5.2 - 4.8)/2 The attentuation at 5.4G is at least 20dB what's the order of the bandpass filter? I got 2. is it correct?
  11. E

    Calculating Capacitance

    capacitance cox You also can google how to calcualte the capacitance you want to have. Lots of online notes are talking about that.
  12. E

    tsmc_.18 proce$$ description

    Thanks, also But, do you have tsmc .35 process description?
  13. E

    package information needed for Cadence RFI Package simulator

    rfic package cadence pkg I just wonder whether anybody can provide a sample data file of package for Cadence RFIC package modeler. I had searched the some packages, provided by MOSIS. But I don't think I get enough information. Thanks for the possible help.
  14. E

    a confusing question about MOS small signal model?

    As they stated, it does flow current through the gate. You must wonder why Id=Is rather than Id+Ig=Is when applying small signal model. right?
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