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Type: Posts; User: gemmy94

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  1. Closed: Shooting and Bouncing Ray technique coding simulation

    Hi everyone,
    I would like to simulate propagation of Electromagnetics Wave in a city scenario for my master thesis.
    Can anyone help me with any basic code of SBR method.
    Thank you very much!
  2. Closed: Enhancement bandwidth of Microstrip Patch Antenna

    Hi everyone,
    I am designing an array Microstrip Patch antenna with the band 2.3-2.5 GHz. But the trouble come with single element. I cant design an antenna like that with the bandwidth of 200 MHz. ...
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    Closed: Minimum width of fabrication

    Hi everyone,
    I want to fabricate a plannar divider with one part, which is just 0.1mm in width. In Vietnam, there is no company can handle this problem. Is there anyone know where can do it (even...
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    Closed: Re: CRLH Transmissionline

    I mean the Lleft in CRLH scheme, Mr Planar :) so do you get my question before?
    Thank you for your document. It is very helpful.
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    Closed: Re: CRLH Transmissionline

    So, the only way to create Left-Inductor is to use the via. I have read one paper about use the via-less...
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    Closed: CRLH Transmissionline

    I am designing a CRLH TL in microstrip line. From the equivalent circuit of CRLH TL, in theory, the left-Inductance can be get by connect the conductor on the upper plane of substrate to the ground...
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    Closed: Antenna Engineering in Aircraft

    Hi everyone, i am very interested in avionics aircraft engineering. I am studying at Vietnam in aeronautical area, but there is so little documents and supports in this area in my country. I would...
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    Closed: Re: S11 from MIMO antenna SImulation

    I expected S11 in two case is the same, because in HFSS the first port only excited, so in my view i thought S11 in both case will not change.

    - - - Updated - - -


    I expected S11 in two case...
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    Closed: S11 from MIMO antenna SImulation

    Hi everyone,
    I have a little confused when simulate MIMO antenna.
    Firstly, i simulate two antennas that are symmetric each other with one port only for antenna 1.
    Second, i simulate them in the...
  10. Closed: Re: how to know polarisation of antenna in hfss?

    I am the new in this area. Could you tell us more detail as reading that graph to show the polarisation?
    Thank you so much!!
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    Closed: Trouble in "Unite" operation

    I am designing a word antenna that is embroidered on a cloth. I get a trouble in simulation, which is the Unite operation. The HFSS notified that:
    - Acis error: "Fail to make union..Acis Error 40002...
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    Closed: Re: Dual-band Monopole in Microstrip

    Thank you so much, vfone
    You must have many experiences, i now like to ask you about the "substrate" and "ground" for this antenna in my project (especially in their dimensions). I do an antenna...
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    Closed: Re: Dual-band Monopole in Microstrip

    I have project designing coupled antenna by Decoupling Network for antenna at frequency 1.8 and 2.6 Ghz. So far i thought should do two antenna with two port first, then i take the decoupling network...
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    Closed: Re: Dual-band Monopole in Microstrip

    I just get size for dual-band of 2.45 and 5.2 GHz (l1 = 26.5mm, l2 = 5.3mm). For this length the plot of S11 is very good (figure below) but i can't adjust dimension for dual-band of 1.8 and 2.6 GHz....
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    Closed: Dual-band Monopole in Microstrip

    Hi everybody,
    I am having a little trouble in designing a dual-band monopole by microstrip at frequency 1.8 GHz and 2.6 GHz. I can't adjust the length l1 and l2 (in the figure) to responsible for...
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    Closed: Re: s parameter problem on cst 2010

    That error may be due to the step you choose between each run. Example
    First run: 1GHz - 3GHz with step 1000 but after that it is rechanged step to 500.
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    Closed: Re: "Mesh" function in HFSS

    Maybe i 'd written wrong in my post before. Actually i would like to ask about "Mesh" in HFSS.
    Thank you!
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    Closed: "Mesh" function in HFSS

    Hi everybody,
    I have one question that i am wondering how "Mesh" function work in matlab. Could you give me some references and documentations about this.
    Thank you so much!
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    Closed: Re: Ansoft HFSS port problem

    - The 1st selection: You can use Lump Port when using Transmission line (the port is drawn inside the substrate)
    - The 2nd selection: You can use Wave port for feeding by coaxial.
    Remember Wave...
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    Closed: Evaluate graph of bandwidth

    Hi everyone,
    I am having trouble about evaluating graph of bandwidth, how to make Matlab understand how good a graph is?
    Example: Resonant frequency = 3.6 and S11 at there < -10 dB, bandwidth...
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    Closed: Re: Error of fixing number in HFSS

    Thank you for considering,planarmaterial. Unit is "mm"
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    Closed: Error of fixing number in HFSS

    Hi everybody,
    When i input the index for parameters in floating number like "4.56, 5.34,...", it always automatically change these numbers to integer like this 4, 5,...
    Could someone help me...
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    Closed: Genetic Algorithm for antenna

    Hi everybody,
    I am having a project about "optimization for antenna using HFSS simulation through HFSS API". My trouble is now when i export data under Excel or Matlab table from HFSS result, i dont...
  24. Closed: Genetic Algorithm optimization for antenna

    Hi everybody,
    My name is Ngoc, I am the third year student at Ha Noi University of Science and Technology in Vietnam. I am having a project about "optimization for antenna using HFSS simulation...
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    Closed: Re: Linking HFSS and Matlab

    Thank you so much phen3x. I now having another trouble in my project GA relating to analyze the result exported from HFSS. I dont know any idea or code for that. Could you reference me a simple code...
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