how to make sure the normal vector of phase.ConformalArray is the same as normal vector of antenna element?

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Xingda Chen
Xingda Chen 2022-2-18
编辑： Xingda Chen 2022-2-21
I am creating a conformal array of microstrip patch antenna using the phase array system toolbox. I first created a single antenna element of patch antenna:
%%Variable name:
%%ae --> antennas elements
%%This block is used to tune radiation pattern of a single antenna element
dielect_Const = dielectric('FR4');
ae = patchMicrostrip('Length',30e-3,'Width',25e-3, 'Height',4e-3, ...
'GroundPlaneLength',50e-3,'GroundPlaneWidth',50e-3,'FeedOffset',[-10e-3,0], ...
'Substrate',dielect_Const);
show(ae)
fc=2.45e9;
figure(1)
pattern(pm,2.45e9)
which gives my antenna radiation pattern of my single patch antenna, the "mainbeam" points directly to +z
I then created a conformal array of this antenna:
d=(physconst('LightSpeed')/fc)/2;
antenna_dim = 4;
az = -180:180;
el = -90:90;
[array_position,array_direction] =...
pos_and_dir_generator(d,antenna_dim);
faa = phased.ConformalArray('Element',ae,...
'ElementPosition',array_position,...
'ElementNormal',array_direction);
%faa.Element = repmat(ae,1,1)
%antenna_pos= [1 0 0; 2 0 0; 3 0 0 ]'
%faa.ElementPosition = [5 0 0; 2 0 0; 3 0 0]'
figure(2)
%show(faa)
viewArray(faa,'ShowNormals',true,...
'ShowLocalCoordinates',true,...
'Orientation',[30;-20;-90],'ShowAnnotation',true);
%where is my antenna pointing to?
show() function won't run with conformal array (I think)
where array_direction is all 0 for both azimuth and elevation:
array_direction =
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ViewArray() plots my array geometry but with my antenna as a blue circle instead of showing the acutal antenna. Now I am super confused whether the normal direction (orange arrow extended from each element shown below) points to the same direction of z as shown from the last pic? I am not sure where my patch element is facing in this array.
has anyone run into this trouble before? are my elements in the array also facing to z direction even the orange arrow is pointing elsewhere?

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Xingda Chen
Xingda Chen 2022-2-21
编辑：Xingda Chen 2022-2-21
I used a simple but dumb way by setting my element number to be 1 and compare the generaqted pattern with the original pattern to determine the angle difference. Works for me but would appreciate if matlab can offer antenna show() on conformal array as well

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