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=== Gap Sources ===

A gap is an infinitesimally narrow discontinuity that is placed on the path of current flow on a feed line. In planar structures, feed lines are typically in the form of a microstrip, stripline, slotline or coplanar waveguide (CPW). You use rectangle strip objects to construct such feed lines. A gap source can be placed on any rectangle strip object on a PEC, PMC or conductive sheet trace. Depending on the type of the trace on which a gap source is placed, it will have a different physical interpretation.

* In the '''Source Properties''' section, you can specify the '''Source Amplitude''' in Volts (or in Amperes in the case of a gap on a slot trace) and '''Phase''' in degrees.

* You can also change the default label as well as the default color of the gap source using the '''Color''' button of the dialog and selecting the desired color from the color palette.

=== Probe Sources ===