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Recent content by maryamchilan

  1. M

    simulating microstrip tee junction in ADS software

    Dear friends, would you please make me know how i can simulate the chamfered and tapered tee junction in ADS?
  2. M

    cognitive radio application

    dear friends, would anybody knows how much gain and beamwidth is needed for cognitive radio application?please help me?????
  3. M

    surface current on spiral antenna

    sorry may i have your email to contact with yourself
  4. M

    surface current on spiral antenna

    the gain and radiation pattern are degraded and just the s parameter is good:-(
  5. M

    surface current on spiral antenna

    the matching is somehow good,s11 is below -10 dB
  6. M

    surface current on spiral antenna

    i should mention that i use a cpw to microstrip feed line, before this i use a cpw feed and the antenna parameters was good , but after using this transition they degrade.now what should i do in this case????
  7. M

    surface current on spiral antenna

    i want to change the current from clockwise to counter clockwise and wise versa to increase circular polarization
  8. M

    surface current on spiral antenna

    i design a spiral antenna by cpw fed, i want to know that could i change the direction of surface current by different feeding method?
  9. M

    surface current on spiral antenna

    hi everybody, does anyone know that what would change the direction of surface current on antenna?please help me its so necessary.
  10. M

    bend coplanar wave guide

    hi; would anyone help me how I can define the radios of circular or the diameter of other types of bend coplanar wave guide port in cst. please help me as soon as possible I really need it
  11. M

    the cpw-fed slot spiral antennna

    dear all, would anybody help me how i could enhance the axial ratio of the cpw-fed slot spiral antenna? i need it please help me.
  12. M

    cpw fed spiral antenna

    hi everyone, i want to know how can i improve the axial ratio of cpw fed spiral antenna bellow 3 dB? please help me.
  13. M

    error un cst software

    hi anybody, would anyone tell that what is the error " solver is aborted due to memory exemption in open boundary setup" and how should i solve it? my pc ram is not full:sad:. thanks,
  14. M

    SMA connector in cst

    hi anybody, can anyone share with me a tutorial about modeling the sma connector in the antenna fed by cpw in cst software.
  15. M

    calculating the cpw feed line dimesion

    hi everyone, can anyone help me how i can calculate the dimension of cpw feed line for 50 ohm impedance and substrate 3.5 and its height is .75 mm, i cant open the link in the other posts,:???:

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