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Recent content by kevggion

  1. K

    Mushroom structure in HFSS

    Dear everyone I have simulate a simple EBG structure, single layer mushroom-liked EBG structure, as in attachment. However, I cannot get the same result as shown in Fig. 3 in the paper. What's wrong with my simulation, please help me!!!
  2. K

    HFSS simulation problem: suspended microstrip line

    Thanks for reply and sorry for the version. I have changed the version to v.11. The transmission is about 7.3GHz. However, the paper is about 7.46GHz. I am wondering what cause the error.
  3. K

    HFSS simulation problem: suspended microstrip line

    Dear everyone I have simulate a simple EBG structure, single layer mushroom-liked EBG structure, as in attachment. However, I cannot get the same result as shown in Fig. 3 in the paper. What's wrong with my simulation, please help me!!! THX!
  4. K

    HFSS simulation problem~EBG structure

    Dear everyone I have simulate a simple EBG structure, single layer mushroom-liked EBG structure, as in attachment. However, I cannot get the same result as shown in Fig. 3 in the paper. What's wrong with my simulation, please help me!!! THX!
  5. K

    Microstrip antenna book needed

    Hi I have searched it, but there is no availiable link. Thanks
  6. K

    Microstrip antenna book needed

    Dear everyone I am looking for Microstrip antenna: Theory and design by James J. R., P.S. Hall Can anyone help me here is my e-mail: kevggion@yahoo.com.tw Thank you
  7. K

    negative refractive index vs. frequency

    negative refractive index Hi everyone, Can I show a plot of negative refractive index vs. frequency in HFSS? Thank you so much
  8. K

    an onmi-directional antenna's directivity is lower than 1

    onmi directional antenna* Hi everyone I have faced a problem that the directivity of simulated antenna, half-wavelength slot antenna, is lower than 1 (an omni-directional dipole antenna ususally get 1.6 approximately ). Can any of you help me to figure out the problem. Thanks so much.

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