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Recent content by johnson.mike

  1. J

    Eyediagram measurement

    for proper eye diagram measurement @5Gbps,what is loop filter bandwidth setting.? How loop filter bandwidth affect eye diagram measurement? Plz help in this regard.
  2. J

    What is Eye Scan Test and Frequency Offset test and how these tests are done?

    What is Eye Scan Test and Frequency Offset test and how these tests are done?
  3. J

    How to Calculate Bandwidth

    I'm Concern about measurement ( oscilloscope bandwidth requirement). In mean time i referred attached document which clearly explains the scope bandwidth requirement. Regards, Johnson.
  4. J

    How to Calculate Bandwidth

    For a 70ps (Tr)signal to Characterize, How much Bandwidth(Oscilloscope+Probe) is require with 5-10 % error in measurement? I know that BW = 0.35/Tr (Which will gives 30% error) Is there is any standard formula for this? Regards, Johnson
  5. J

    About wilkinson power divider/combiner

    Thanks alot
  6. J

    About wilkinson power divider/combiner

    I think we can use wilkinson power divider as combiner as well. My questions are What will be the output if we feed two signals of equal amplitude with some phase diff between these two signals? what will be the output if we feed two signals of equal phase and amplitude of 10 and 7 dB each?
  7. J

    best position for probe in microstrip patch ?

    I think its Z= cos²(ΠYo/L); Where Yo is the distance from edge of the patch. L-length of the patch antenna. Cross check it.
  8. J

    meaning of "full wave" in HFSS, references for FEM

    Re: Question in hfss? thanks for your reply. One more question, How to add s parameter of two different design in to single file.(say results of two microstriplines with two different gaps).
  9. J

    microstrip antenna/ie3d

    you have to define it separately. can u attach the snapshot of it? so that we can exactly point out .
  10. J

    meaning of "full wave" in HFSS, references for FEM

    Re: Question in hfss? I'm new to HFSS. There are three solution type available. Driven terminal. Driven model Eigen Mode Which one we can use for antenna and board anlaysis applications.? regards, johnson
  11. J

    meaning of "full wave" in HFSS, references for FEM

    Question in hfss? HFSS is a high-performance full-wave electromagnetic(EM) field simulator Here what is the meaning of "full wave" electromagnetic field simulator? Any Good reference for FEM and MOM? Any one have the below one Analytical and Computational Methods in Electromagnetics by...
  12. J

    Tutorial for Probe Feed Antenna Design using IE3D

    I remember circular patch dual probe fed antenna given in ie3d examples. It might comes under finite dielectric construction in manual. regards, johnson
  13. J

    Antenna Questions - incerase beamwidth, reduce sidelobe

    Antenna Questions How to incerase beamwidth in dipole antenna? How to reduce sidelobe level in an array? help me in this regard.
  14. J

    Reg:Impedance Matching

    Thanks guys for your response. It had been completed by iterating L and C. Regards, johnson
  15. J

    Reg: Patch Antenna simulation in HFSS

    hi zirtapoz, Its similar like probe feed patch Antenna.(Its SMA connector instead of probe feed in my earlier attached file).
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