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.
