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Recent content by mneshat

  1. M

    Modelling a structure excited by line source in HFSS 9.2

    I have a structure which is excited by a line current source parallel to z axis. The current varies along the line in the form of exp(-j.beta.z), where "beta" is a constant number. Now my quation is that how I can model this kind of current in HFSS9.2.
  2. M

    Lumped elements in HFSS

    lumped element in hfss I'm wondering whether it is possible to use lumped element (ideal inductor and capacitor) in HFSS.If so how can we do that? I want to use this possibility (if there is) to model Metamaterials (Those materials with negative refractive index) in HFSS.I appreciate your help.
  3. M

    Elecromagnetic metamaterial by caloz

    is metamaterial real? I would like to know what the metamaterial is and what applications it has.
  4. M

    Can filter design be used as attenuater ?

    Re: filter design If you mean you can use a filter as an attenuator in its stop band you should pay attention that it won't have good return loss at all.
  5. M

    What is the difference between MLEF and MLOC?

    Re: microstrip in ADS. in MLEF the end effect of the open line (fringing capacitor) is taken into account but in MLOC it isn't.
  6. M

    Where to find theory and examples of signal flow calculation

    Re: Signal Flow Graphs In the book "Microwave engineering" by David M. Pozar you can find about Signal Flow Graphs.
  7. M

    is it possible to fabricate microwave amplifier in stripline

    Really I have an idea for using SMD components in Stripline structure without punching out the upper cover.for example for mounting transistor we can use via holes to transfer the mounting pads of transistor pins to the back of the upper cover board and then montage the transistor on that. I am...
  8. M

    is it possible to fabricate microwave amplifier in stripline

    I would like to know whether it is possible to fabricate microwave amplifier in a stripline structure.I appreciate your comments.

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