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Type: Posts; User: chenfire

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  1. Replies
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    Closed: Re: Two patch antennas gain

    Thank you for your respond.

    This is a result of a simulation. I am looking for a mathematical explanation for this phenomena.
  2. Replies
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    323

    Closed: Two patch antennas gain

    Hello all,

    I have a question regarding two patch antenna array. does the distance between the patches varies the gain? (they are separated with at least lambda/2 so neglect coupling)
    I think that...
  3. Closed: Virtual antenna array vs pattern multiplication

    Hello,

    I have a general question regarding to the difference (if exists) of these two terms.
    In some papers, virtual antenna arrays is used to described the spatial convolution between Tx and Rx...
  4. Closed: Re: extraction s11_phase s11_magnitude s21_phase and s11_magnitude in cst

    Are u sure that your matlab code is correct?

    Did u solve ambiguity issues?
  5. Closed: Computing scattered field when using floquet ports

    Hey there,

    I have a simulation that uses floquet ports.
    My goal is to compute the scattered field at the origin,

    I've noticed that when using floquet ports i can't choose whether to compute...
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    Closed: Re: Plane wave with Master Slave in HFSS

    I've thought about that, but i wonder what does I simulate if master/slave applied on three axes?

    Is this type of warning is critical If I look for the E field at the origin?
  7. Replies
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    Closed: Plane wave with Master Slave in HFSS

    Hey ,

    I created HFSS simulation that contains a structure, surrounded by air box.
    Mastr\Slave boundary conditions were forced on each face of the box (3 masters and 3 slaves).

    The structure...
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    Closed: Looking for a specific material

    hey there,

    Im looking for materials that thier relative permetivity is in between 10 to 200.

    I hope that somone here knows where can I find a list

    thanks a lot
  9. Closed: Feeding a rectangular wavegude with two pins

    hey there,

    I built in hfss a rectangular wave guide and two pins that should feed him.
    I wish that the waveguide will only let TE20 mode to propogate.

    How can i make it?
    which kind of ports...
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    Closed: S parameters in HFSS

    hey there,

    I built a simulation in hfss, and want to view a graph of S11 vs freq.

    The simulation contains two floquet ports (1 and 2).

    I can't understnad the meaning of...
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    1,123

    Closed: Re: Bi anisotropic slab in hfss

    never mind,
    I found the tan(dleta) for mu.

    I still dont know how to make bi -anisotropic material.
  12. Replies
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    Closed: Re: Bi anisotropic slab in hfss

    Another issue, what is the loss tangent for mu?
    i mean, tan(delta) is the loss tangent for epsilon, so what is the loss tangent for mu?

    thanks
  13. Replies
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    Closed: Re: Bi anisotropic slab in hfss

    In the following picture u can see zeta and Xsi, which i call them couplling matrices:

    133071
  14. Replies
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    Closed: Re: Bi anisotropic slab in hfss

    Well,

    I found how to make mu and epsilon matrices, but what about coupling matrices?
    I dont think that they are there...
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    Closed: radial current - quasistatics

    hey there,

    i've noticed that in any quasistatic problem, the current (that can be induced) is a radial current.

    Is it true? why is that?

    thanks a lot!
  16. Replies
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    1,211

    Closed: Re: Assigning Wave Propagation Vector K in HFSS

    sure,

    right click -> add excitation -> plane wave.

    then a new window will show up, u will be able to select the zero phase place (which is setted to the origin),

    then press next and it will...
  17. Replies
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    1,211

    Closed: Re: Assigning Wave Propagation Vector K in HFSS

    hey there,
    it seems that u want to excite ur structure with a plane wave.
    just add a plane wave excitation and select Ex and ky.
    note that if u select EX=1, Ky=1, then Hz=-1/n (when n is the...
  18. Replies
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    1,123

    Closed: Bi anisotropic slab in hfss

    hey there,

    I want to define a bianisotropic slab ( i have the required 4 matrices),

    how do i do it using hfss?

    thanks a lot!
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    1,169

    Closed: Re: improving accuracy in hfss

    do u know if there is a chance to increase the number of the mesh's tirangles?
  20. Replies
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    1,169

    Closed: improving accuracy in hfss

    hey there,

    what can i do, besides increassing maximum number of passes and decressing maximum delat energy
    to get more accurate results?

    thank you
  21. Closed: reading files in matlab after exporting in hfss

    hey there, i 've exported hfss's magnetic field file.

    the file contains a lot of samples in this form:
    Rho, Phi, Z, Complex Vector data "<Hx,Hy,Hz>"
    when Hx,Hy,Hz has 2 components.

    I wold...
  22. Replies
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    Closed: static field excitation in hfss

    hey there,

    is there any option to excite a structure with a static field?

    Thank you
  23. Replies
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    Closed: Re: Extracting currents or fields from hfss

    As i said, polyine 1 is a non model line and appears in the field report. this isn't the problem,
    Reciving field on one line will not solve my issue which is to recive it over a surface.
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    Closed: Re: Extracting currents or fields from hfss

    polyine 1 is a non model line.
    i've also tried to draw a non model structure, and i couldn't see it in the drop down list.
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    Closed: Re: Extracting currents or fields from hfss

    For sure, no.
    Torus's surface, like any other surface is a 2D essence, but it varies in X Y and Z.

    What i'm tring to say is that variation in X Y or Z alone, won't solve the problem.
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