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Chapter: Transmission Lines and Waveguides : Impedance Matching in High Frequency Lines

Single and Double Stub Matching Using Smith Chart

Single stub impedance matching requires the stub to be located at a definite point on the line. This requirement frequently calls for placement of the stub at an undesirable place from a mechanical view point.

SINGLE AND DOUBLE STUB MATCHING USING SMITH CHART.

 

The difficulties of the smith chart are

 

     Single stub impedance matching requires the stub to be located at a definite point on the line. This requirement frequently calls for placement of the stub at an undesirable place from a mechanical view point.

 

   For a coaxial line, it is not possible to determine the location of a voltage minimum without a slotted line section, so that placement of a stub at the exact required point is difficult.

  In the case of the single stub it was mentioned that two adjustments were required ,these being location and length of the stub.

 

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Transmission Lines and Waveguides : Impedance Matching in High Frequency Lines : Single and Double Stub Matching Using Smith Chart |


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