Assistance plotting radiation pattern
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Yuval
am 4 Jun. 2018
Kommentiert: Star Strider
am 5 Jun. 2018
I am trying to make a polar plot using the following code yet it doesn't come out as smooth as desired. I'd appreciate some further guidance:
P = [-65,-67,-66,-68.2,-67,-67,-66,-65,-63,-62,-52,-42,-41.5,-47.39,-60.5,-61.7,-63.35,-67,-65.2,-66.1,-71,-67,-67,-68,-65,-65];
A = [-180,-165,-150,-135,-120,-105,-90,-75,-60,-45,-30,-15,0,15,30,39,45,60,75,90,105,120,135,150,165,180];
G = P+10;
polarplot(A*pi/180,abs(G));
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Star Strider
am 4 Jun. 2018
I’m not certain what result you want.
One option is to interpolate your data:
Ai = linspace(min(A), max(A), 360);
Gi = interp1(A, G, Ai, 'spline');
figure
polarplot(Ai*pi/180,abs(Gi));
You will need to experiment with that to get the appropriate result.
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Star Strider
am 5 Jun. 2018
No ideas.
I was helping you with or original question, and plotting your vectors. Antenna theory is far from my areas of expertise.
The idea of ‘negative gain’ is essentially attenuation. This only makes sense if the units are dB, since negative in that sense simply means fractional.
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