Stub (electronics) - Open Circuited Stub

Open Circuited Stub

The input impedance of a lossless open circuit stub is given by

 Z_\mathrm{OC} = -j Z_0 \cot (\beta l) \,\!

It follows that whether is positive or negative, the stub will be capacitive or inductive, respectively.

The length of an open circuit stub to act as an Inductor L at an angular frequency of is:


l = \frac{1}{\beta} \left

The length of an open circuit stub to act as a capacitor C at the same frequency is:


l = \frac{1}{\beta} \left

Read more about this topic:  Stub (electronics)

Famous quotes containing the words open and/or circuited:

    Manuel showed her his open hand: “Look at this finger, how meager it seems, and this one even weaker, and this other one no stronger, and this one all by himself and on his own.”
    Then he made a fist: “But now, is it strong enough, big enough, solid enough? It seems so doesn’t it?”
    Jacques Roumain (1907–1945)

    The circuited city of the future will not be the huge hunk of concentrated real estate created by the railway. It will take on a totally new meaning under conditions of very rapid movement. It will be an information megalopolis.
    Marshall McLuhan (1911–1980)