Types of Patterns
![](../../../../../images/winprop/user_guide/aman/introduction/half_wave_dipole_patterns.png)
Figure 1. Horizontal pattern (left) and vertical pattern (right) of a half wave dipole.
![](../../../../../images/winprop/user_guide/aman/introduction/half_wave_dipole_3dpattern.png)
Figure 2. 3D view of the antenna pattern of (half wave) dipole.
It is obvious that accurate computations are only possible with 3D patterns. AMan includes, therefore, a module to convert 2x2D patterns to 3D patterns.
Antenna patterns can be defined in any coordinate system. Spherical coordinate systems are most commonly used to define antenna patterns.