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Guides
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Examples
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- Dipole Antenna
- Half-Wave Dipole
- Folded Dipole
- Top-Loaded Short Monopole
- Monopole Above Earth Ground
- Radio Mast Above Wire Screen
- Square Loop Antenna
- Receiving Loop Antenna
- Magnetic Loop Antenna
- ISM 433MHz Helical Antenna
- Multiband J-Pole Antenna
- Modeling a J-Fed 5-Element Collinear Antenna for the 2 m Band
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Validation
Yagi-Uda Array
After learning how to simulate a Cylindrical Antenna >, we are ready to build a dipole array. A 3-element Yagi-Uda antenna, consisting of a reflector, a driven element, and a director, is shown in Fig. 1, where the coordinates of the wire ends are indicated in meters.

Step 1 | Setup
Go to the Setup tabsheet and set an operating frequency of 300 MHz in the Frequency panel. None must be selected in Environment panel > Ground Plane box and Discrete Sources in the Excitation panel.
Step 2 | Draw
Follow the procedure described in Cylindrical Antenna > to draw one wire at a time. Set the coordinates of the ends of the wires indicated in Fig. 1. Set 15 segments for each wire and a radius of 5 mm. Then, right click on the driven element, select the Source/Load command, and connect a voltage source at the middle segment. Refer to Adding Sources >.
Step 3 | Run
Click on the Run Currents and Far-Field (F11) button on the toolbar. Fig. 2 shows the table in the Results tabsheet, where a peak gain of 8.9 dBi is obtained. This can also be seen in the gain pattern of the Yagi-Uda array shown in Fig. 3. Click on the Far-Field 3D Plot button on the toolbar to plot the 3D radiation pattern.

