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Recent content by ado

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    How to reduce the back radiation of DGS?

    Hi.. I am doing research on periodic structure (DGS). From the results, I found that the back radiation of the DGS structure is very high. It has almost the same level with the main lobe. Does anyone has experience on how to reduce the back radiation? or suggest any referred papers. Any...
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    slow-wave factor in IE3D

    Hi, I am doing study on a periodic boundary structure. Does anyone knows how to check the slow-wave factor of my design in IE3D? or any numerical solutions relating to the one that i obtained from simulation (S-parameters or patterns) to get the slow-wave factor? All comments are welcome. Thank...
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    Radiation from defected ground plane PBG structures

    I am also interested with this topic. Does anyone has the related articles or opinion?
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    Question on IE3D (to Jian)

    Hi Jian.. Thank you for your quick reply. I really appreciate your help. How do we define the reference plane in IE3D? could you give me some examples of different value of reference plane and its changed results in impedance characteristics? regards, ado
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    Question on IE3D (to Jian)

    Jian, please help me... I am trying to design a microstrip patch antenna fed by an inductively coupled slot CPW using IE3D. As a beginning, i was trying to simulate the model like shown in this paper. Unfortunately, i can't obtain the same impedance characteristics result. It was like the...
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    [Help] articles or papers on Dyadic Green's Function

    Hi, I do really need your help to find out articles or papers which contain the derivation of Dyadic Green's function associated with scalar green's function in case of infinitely-long rectangular waveguide for : 1. Magnetic Field produced by a Unit Electric Current 2. Electric Field produced...
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    [need help] waveguide theory

    Hi... I need articles or papers related to the theory of Seki's alternative expression in waveguide theory. Does anyone has such article (s)? I would welcome any comments or related informations you might have. Thank you so much. regards, ado I have found this document. But I don't have any...
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    Microstrip Patch antenna {ebook}

    i don't have enough points. How could i get this e-book? I need this one. Thanks
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    [help] CPW-fed monopole antenna

    Hi... does anyone can share their experienced on how to fabricate a CPW for monopole antenna? I've conducted the experiment, however, the results haven't perform a good agreement with simulated yet. I am using IE3D to simulate the monopole antenna. Thank you.
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    [need help IE3D]:Tx-Rx

    Thanks Jian. I am using ie3d ver.10, unfortunately there isn't a quick botton for Tx-Rx transfer function in PatternView as in ver.11. Are there any methods to solve it? thank you
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    [need help IE3D]:Tx-Rx

    I'm a newbie in using IE3D. Now, I'm working on UWB antenna. I have problems to simulate impulse response and group delay. Does anyone can guide me to simulate it? thank you rgrds, ado
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    Question about simulating UWB antenna

    I am a beginner in UWB antennas area. I have problems in simulating planar monopole antenna. Does anyone know on how to simulate it using IE3D? Thanks in advance.
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