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Recent content by Echo

  1. E

    Help me design a cavity filter

    I need help any one know?
  2. E

    Help me design a cavity filter

    I want to design a cavity filter Parameter: (Frequency Range) 1900～1915 MHz Insertion Loss ≤1 dB Ripple in Band ≤0.5 dB VSWR ≤1.2 Rejection ≥27dB@1895MHz ≥27dB@1920MHz Connector N-Female can you give me some suggestion...
  3. E

    How to set the frequency range in HFSS?

    Thank you!
  4. E

    How to set the frequency range in HFSS?

    I want to optimize the cavity filter when I set the frequency range I can set the single value only(default) Can you tell me how to set the frequency range in HFSS? Thank you ! [/img]
  5. E

    where can i buy this isolator?

    Thank you
  6. E

    where can i buy this isolator?

    Thank you ！ but I have no Microwave Joural.
  7. E

    where can i buy this isolator?

    I want to buy low pim isolator PIM=120dbc anybody can tell me where can I buy the isolator? :?: Thank you!
  8. E

    I want help about passive filter

    Thank you!
  9. E

    I want help about passive filter

    Thank you! I want to design cavity filter,but I don't know the relation between the J impedance inverters and coupler cofficient k. :?:
  10. E

    I want help about passive filter

    Who use serenade software to design filter? The question is very difficult to me,so I want to help. Thank you! :D
  11. E

    bandpass filter for rf application

    I want to know how design the band pass filter If anyone know,maybe,you can tell me Thank you!
  12. E

    Effect of Q-Factor on filter performance

    me too,it's very useful
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