This is concerning the phased.ura documentation and row - Y vs col - Z

I found this in the documentation and of course used it...:

******

 phased.URA/Size
 Size   Array size
    Specify the size of the array as a 1x2 integer vector or an
    integer. If Size is a 1x2 vector, it is in the form of
    [NumberOfRows NumberOfColumns] where rows are along y-axis and
    columns are along z-axis. If Size is a scalar, the array has
    the same number of elements along both axes. The default value
    of this property is [2 2].
 Property Details
 Constant  false
 Dependent  false
 Sealed  false
 Transient  false
 GetAccess  public
 SetAccess  public
 GetObservable  false
 SetObservable  false

********

But when I use "viewArray" the results see to be the opposite? I think the rows are along the Z axis and the columns are along the Y axis? I think I have included enough code to test my hypothesis. You can also reference this: https://www.mathworks.com/help/phased/ref/phased.ura-class.html

% Uniform rectangular array
h = phased.URA;
h.Lattice = 'Triangular'; % This is the subarray element structure

% Create the subarray, element spacing
percentWavLengZ = 0.4761;
percentWavLengY = 0.3926;

% h.ElementSpacing = [0.0408163265306122 0.0408163265306122];
h.ElementSpacing = [lambda.*percentWavLengY  lambda.*percentWavLengZ];

% Size   Array size in doc under phased.URA/Size
%     Specify the size of the array as a 1x2 integer vector or an
%     integer. If Size is a 1x2 vector, it is in the form of
%     [NumberOfRows NumberOfColumns] where rows are along y-axis and
%     columns are along z-axis. If Size is a scalar, the array has
%     the same number of elements along both axes. The default value
%     of this property is [2 2].
h.Size = [32 16]; % Y-rows, Z-cols, this is the subarray size 

% The element is just a cosine element with a exp rolloff
h.Element = phased.CosineAntennaElement('CosinePower',[2 2]);

subArrayDiag = figure;

spacingString = ['spaced at ' num2str(percentWavLengY) ' \lambda,'...
    num2str(percentWavLengZ) ' \lambda'];
sizeString = [' with ' num2str(h.Size(1)) ' Rows-Y,'...
    num2str(h.Size(2)) ' Cols-Z '];

title_strViewArray = [sizeString spacingString];

viewArray(h,'ShowNormals', true,'Title',title_strViewArray);

Answer 1

[Honglei Chen]

I think the figure is correct as it shows 32 rows and 16 columns. When the document says the rows are along y axis, it means the rows are parallel to y axis. If you look at the lower left corner of the plot, you can see the directions for y and z.

HTH

[mike susedik]

ok, so the line of radiators in the row will be parallel to the y axis.