How to export the values of the radiation pattern from antenna designer to workspace

When using Antenna designer we can plot the elevation pattern and impedance etc. What is the easiest way to extract the individual values from these plots

in order to do further processing on them in Matlab?

Answer 1

[Shashank Kulkarni]

Export your design into a MATLAB script. Then you can pass a LHS to the pattern function to get the maginitude of the directivity to the workspace.

I hope this helps.

Regards,

Shashank

[EN]

Thank you Shashank,

If this is the script what would be the LHS command?

% Create a dipole antenna

% Generated by MATLAB(R) 9.8 and Antenna Toolbox 4.2.

% Generated on: 01-Apr-2020 20:35:56

%% Antenna Properties

% Design antenna at frequency 150000000Hz

antennaObject = design(dipole,150000000);

%% Antenna Analysis

% Define plot frequency

plotFrequency = 150000000;

% Define frequency range

freqRange = (135:1.5:165) * 1e6;

% show for dipole

figure;

show(antennaObject)

% elevation for dipole

figure;

patternElevation(antennaObject, plotFrequency)

[Jeffrey Lytle]

Have you been able export the antenna pattern data?

[Jeffrey Lytle]

Using, a=patternElevation(antennaObject, plotFrequency); I am able to get the El and AZ patterns, how do I get the 3D pattern?

[alan cheville]

I didn't know what an LHS was so had to figure this out on my own. Basically if you export the script then modify the last line and past the code below into the bottom of the script you can generate the pattern:

[D,phi,theta] = pattern(antennaObject, plotFrequency) % Modify the last line to export parameters

phi = phi/180*pi+pi; % change to 0 to 2*pi rather than -pi to pi

theta = theta/180*pi + pi/2; % change to 0 to pi rather than -pi/2 to pi/2

[Phi Theta] = meshgrid(phi,theta);

RdB = (D-min(D))./(max(D)-min(D)); % normalize to between 0 and 1

X = RdB.*sin(Theta).*cos(Phi);

Y = RdB.*sin(Theta).*sin(Phi);

Z = RdB.*cos(Theta);

figure;

surf(X,Y,Z)