说明文档中的Pattern函数的type：gain在2023a版本中并不支持？

You can plot the pattern of an antenna with phase as its ‘Type’ for which polarization must be provided. You can also plot all other modes in 20222b and 2023a that are mentioned in the documentation

I can demonstrate you with an example below.

a=patchMicrostrip;

figure;

pattern(a,5e9,'Polarization','H','Type','phase');

figure

pattern(a,5e9,'Type','efield')

figure

pattern(a,5e9,'Type','gain')

figure

pattern(a,5e9,'Type','powerdb')

For more information refer to MathWorks Documentation

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xu yang 2023-3-27

在 MATLAB Online 中打开

hi Raghunathraju,

Thank you very much for your reply! I can run your example sussessfully, but it still dosen't work when the antenna array is different. For example, I used the URA antenna and its pattern can not support type of 'gain'. Similar for other antenna types, like ConformalArray. Would you kindly further help with checking this?

Thanks!

M = 18; % Number of elements on each row

N = 16; % Number of elements on each column

fc=1e9;

c = physconst('LightSpeed');

lambda = c/fc;

dy = 0.5*lambda; % Spacing between elements on each row (m)

dz = 0.5*lambda; % Spacing between elements on each column (m)

ura = phased.URA([N M],[dz dy]);

figure;viewArray(ura,'Title','Uniform Rectangular Array (URA)');

figure;pattern(ura,fc,'ShowArray',true)

figure;pattern(ura,fc,'ShowArray',true,'Type','gain')

Error using phased.internal.parsePatternInputs
Expected Type to match one of these values:

'directivity', 'efield', 'power', 'powerdb'

The input, 'gain', did not match any of the valid values.

Error in phased.internal.AbstractArray/pattern (line 190)
[fc,c,plotArgs] = phased.internal.parsePatternInputs(...

Raghunathraju 2023-3-28

Hi xu yang,

In PhasedArray Toolbox ,'pattern' function doesn't have 'gain' property as its type,whereas you can plot gain and all other modes of pattern in Antenna toolbox.You can refer pattern for more information.

xu yang 2023-3-30

hi Raghunathraju,

Thanks! I agree with you. For the PhasedArray Toolbox, do we have any other function which can calculated the gain or the maximum gain?

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说明文档中的Pattern函数的type：gain在2023a版本中并不支持？

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说明文档中的Pattern函数的type：gain在2023a版本中并不支持？

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