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{{Note|A lumped source must always be associated with a PEC or thin wire line object that is parallel to one of the principal axes.}}
The far-field observable called "FF_1" is defined to compute the far-field radiation pattern of the dipole antenna. You can open the property dialog of the far-field observable in the same way. Note that the spherical theta and phi angle increments are both set to 5&deg;. The port definition observable called "PD_1" is initiated to calculate the port characteristics of the antenna, <i>i.e.</i>, its S, Z and Y parameters. According to the property dialog of the port definition observable, the reference port impedance is 75&Omega; and the S/Z/Y parameters will be computed over the frequency range [<i>fc</i> - <i>bw</i>/2, <i>fc</i> + <i>bw</i>/2], where <i>fc</i> is the center frequency and <i>bw</i> is the bandwidth of the project.
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