Inconsistency in the radiation pattern of the dipole antenna

I'm learning Antenna Toolbox and I've encountered this inconsistency.

Let's consider the default antenna dipole.

d=dipole;
pattern(d,70e6)

We'll have, as expected,

As in the guide example,

patternAzimuth(d,70e6,[0 45])

But, if I want only the pattern Azimuth at el=0°, I think I should enter simply this:

patternAzimuth(d,70e6,0)

But I obtain a completely different (and - I think - wrong) pattern. It is also non consistent with the above 3D pattern

I can't understand where is the problem. Could you help me?

[RD]

I can't understand where is the problem. Could you help me?

[RD]

I can't understand where is the problem. Could you help me?

Answer 1

[Rama Adhikarla]

The difference you see in the shape of the two patternAzimuth have to do with the magnitude limits of the plot. In the first figure of patternAzimuth at 0 and 45 degrees elevation, the plot has magnitude limit of [-2 3] and in the second plot of patternAzimuth at 0 degrees elevation, the magnitude limit is [2 2.11].

Refer the links below for more information on controlling the patternAzimuth plot properties,

1. https://www.mathworks.com/matlabcentral/answers/373596-how-to-change-the-properties-of-patternelevation-or-patternazimuth-polarpattern-plots
2. https://www.mathworks.com/help/antenna/ref/polarpattern-properties.html