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  • Users: yechi
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  1. yechi

    Via-hole balun

    Does someone have any article explaining the concept of "Vial-hole balun" used incorporated in printed dipole antenns.
  2. yechi

    Best way of impedance measurement ?

    What is the best way to measure the impedance(S11 with network analyzer), (for example the output matched impedance of a PA) at high frequencies (above 5 GHz) with the minimum errors due to low impedance, parasitic capacitance, and soldered connector influence ?
  3. yechi

    Coupling Coeficient Extraction

    Hi, I'm trying to do an EM simulation (HFSS) to extract the coupling coeficients of coupled resonators used as building block for a filter design using Jia-Sheng Hong & Michael J. Lancaster. This method extract the coupling coeficient from the S21 response using two resonance frequencies. The...

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