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Recent content by junglerock

  1. J

    parallel to serial conversion MCU

    Hi all, I am going to convert a parallel data to serial data (6 bits), please advise a suitable MCU (vendor & part number) that can perform this conversion. Thanks.
  2. J

    Power definition, converting dBm per tone to SCL

    Power definition Deal All, Can I say, 30dBm per tone = 27dBm S.C.L. (Single carrier level)?? Thanks.
  3. J

    S parameters questions

    What conditions that small signal S21 equals to Large signal S21? Is that correct if small signal S21 is smaller than large signal S21?
  4. J

    Some basic concepts need your attention

    1. Mode conversion: IS it stating that changing from TEM to TE or TM ?? 2. TEM is a very good mode for EM energy transmission? then how about TE or TM mode ? 3. Why after a certain high frequency (cutoff freq), the TEM will change into TE or TM mode? 4. For a transmission line, the denser...
  5. J

    Coaxial connector simulation with hfss

    connector simulation model For a single connector simulation using HFSS, please direct me if you have any comments on it: Please kindly download my file and check any part of it has error! 1. For a practical case, do I need to setup a definite thickness of the outer shield cylinder...
  6. J

    Tutorials for HFSS v9 or Ansoft Designer

    *.hfss here's another: h**p://www.51eda.com/
  7. J

    Why does V supply in GaAs is higher than CMOS ?

    V supply in GaAs Why the voltage supply used in GaAs device is higher than CMOS device? Is it related to the bandgap energy or any other parameters? Please advise me some textbooks/app notse on this issue..
  8. J

    Basic microwave component questions

    Could anyone here tell me the basic differents between these components: 1. Limiter vs. Attenuator 2. Coupler vs. Isolator
  9. J

    Don't Let Linearity Squeeze Your WLAN performance

    Dear all, Why EVM is concerned in 802.11g, (OFDM) ? and also why ACPR is concerned in 80211b, (CCK operation)? thanks.
  10. J

    Touchstone translation in ADS-SPICE model generator

    Dear all, A standard *.s28p failed to translate into SPICE model using ADS2003C -SPICE model generator. However, a standard *.snp, where n<10, can be translate correctly into SPICE model using ADS2003C -SPICE model generator. I checked the @DS manual, it stated that the SPICE model generator...
  11. J

    Touchstone translation in ADS-SPICE model generator

    spice model generator ads Dear all, A standard *.s28p failed to translate into SPICE model using ADS2003C -SPICE model generator. However, a standard *.snp, where n<10, can be translate correctly into SPICE model using ADS2003C -SPICE model generator. I checked the ADS manual, it stated that...
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