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Recent content by randy orton

  1. R

    Move Object in HFSS 13.0

    Hello As a part of design I have made a polyline. And I want to keep it at (x,y,z)=(p,q,-r) so using move command I will set anchor point as a (0,0,0) and (dX,dY,dZ)=(p,q,-r). And it will move from the starting point of a polyline. I mean where I started to draw polyline whatever was my...
  2. R

    virtual object in HFSS

    you can create a non-model object which won't affect on the any results.
  3. R

    Dipole antenna input impedance vs frequency

    Dear FvM I am just looking for an answer that what I am doing is right or wrong?if it is right than why is it and if it is wrong than what i can do to improve my results? it looks like it is wrong so from experts like you i need some kind of guidance which can help me to solve problem. I am...
  4. R

    Dipole antenna input impedance

    Hello all I am trying to design a dipole antenna using HFSS. In my design i plotted a graph for input impedance Vs frequency and it seems that instead of somewhere close to 73 ohms i am getting it to 117 ohms which is way to off.so can anybody take a look and tell me what is wrong with a...
  5. R

    Dipole antenna input impedance vs frequency

    Hey streamlet from the attached file can you say that is it correct or not?instead of 73 ohms i am getting around 117 ohms in the plot. so can you give some advise? or any opinion on that?
  6. R

    Input impedance vs frequency

    Hey Volker_muehlahaus Can you just take a look and tell me that for dipole is it correct?i was hoping to get impedance somewhere nearer to 73 but i am getting nearer to 117-118, so why is it so? is it even possible? any idea or suggestion will be grateful.
  7. R

    Input impedance vs frequency

    Hello FvM I was going on a wrong track and with the help of your guidance i realized that, now i have step down and i am just attaching a file which contains output of a dipole antenna only, nothing else.center frequency is set to 300MHz. If it is correct than only it is advisable to step...
  8. R

    Input impedance vs frequency

    Attached pdf shows the basic model diagram for this thing
  9. R

    Input impedance vs frequency

    Hello FvM Here I am attaching pdf which contains tabular plot for same ellipse.pdf graph. according to it Re(z) is very close to zero but now zero. but still resultant impedance is very close to 0 so is it a good thing or not?my lumped port is set for 75 ohms so does it mean that there is...
  10. R

    Input impedance vs frequency

    Actually in ellipse.pdf if you open it in HFSS than straight line at 0 indicates Re(z) for all the distance, only imaginary value of impedance is varying, I tried to attach original HFSS file but system don't allow me to attach with HFSS extension.
  11. R

    Input impedance vs frequency

    Here in the attachment i have kept figure with the zoom. what does "In the first, the important real impedance part representing the radiation resistance is missing." mean?
  12. R

    Input impedance vs frequency

    Thanks for your reply. I am using HFSS 13 and yes center frequency is 88 Mhz but i have plot Z11 Vs frequency not S11. i guess Z11 will give me the input impedance not the S11, if i am wrong than please guide me.and if i am right than what should i interpret form that?
  13. R

    Input impedance vs frequency

    Thanks FvM In both the figure X axis shows the frequency and Y axis shows Z11 of real and imaginary. almost flat line at 0 shows Real part and other buch of lines shows imaginary part at the different distance between antenna and parasitic element. For the other figure i don't have access to...
  14. R

    Input impedance vs frequency

    Hello all In the attachment i have attached a pdf which contains the graph of input impedance Vs frequency of a dipole antenna and ellipse shape parasitic element at a different distance between antenna and parasitic element, I basically want to know that what can be interpreted from the...
  15. R

    I shape parasitic element

    Hello all I am working on a design of antenna and different shapes of parasitic element, and as a part of that i want to design I-shape parasitic element. but the one more requirement is that i want to change the distant between antenna and I shape element in a same file.Like my antenna is on...

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