Radiation Pattern of a Dipole Antenna with Arbitrary Orientation

​
L/λ
1.4
mesh
none
automatic
full
dipole axis orientation
θ
ℓ
[°]
30
ϕ
ℓ
[°]
120
opacity
​
step [°]
3
performance goal
Speed
viewpoint
Reset
+z
-z
+y
-y
+x
-x
The normalized E-radiation pattern of a center-fed linear dipole antenna with sinusoidal current distribution and variable axis direction
(
θ
ℓ
,
ϕ
ℓ
)
is plotted. Three of the cube sides correspond to the intersections of radiation pattern with the coordinate planes. The
x,y,z
directions are shown as red, green, and blue, respectively. The length/wavelength of the dipole ranges from 0.1 to 10 in steps of 0.1. The default three-dimensional evaluation is done at every 3°. Two-dimensional evaluation is always carried out at 1°. A smooth picture might take some time to display.

Details

The "
L
/λ" control changes the length per wavelength of the dipole.
The "mesh" and "opacity" controls correspond to the well-known options of Mathematica, while the "performance goal" control stands for Mathematica's PerformanceGoal. The default setting is "Speed", but "Quality" results in a picture with finer detail.
The "step[°]" control changes the number of plot points for the 3D radiation pattern. The initial value of 3° results in a smooth picture.
The "
θ
ℓ
[°]" and "
ϕ
ℓ
[°]" controls change the orientation of the dipole axis (the orange vector), and they are independently variable in steps of 5°.
The "viewpoint" control gives six predefined viewpoints and a reset button to the initial view. To reset the pan/zoom settings, select the object and right click to get to the popup menu and the "Reset Pan/Zoom" option.
For faster evaluation, SphericalPlot3D was chosen instead of RevolutionPlot3D or ParametricPlot3D.

References

[1] N. I. Yannopoulou and P.E. Zimourtopoulos. "Virtual Antennas, Volume 1, 1999." (Feb 3, 2002). library.wolfram.com/infocenter/MathSource/868.

External Links

Dipole Antenna Radiation Pattern

Permanent Citation

Nikolitsa Yannopoulou, Petros Zimourtopoulos
​
​"Radiation Pattern of a Dipole Antenna with Arbitrary Orientation"​
​http://demonstrations.wolfram.com/RadiationPatternOfADipoleAntennaWithArbitraryOrientation/​
​Wolfram Demonstrations Project​
​Published: January 11, 2016