getNumSubarrays

Construct a 5G antenna array with panels on a 2-by-2 grid with each panel being a 4-by-4 array. Each antenna element consists of two short-dipole elements. Use each panel as a subarray. The elements are spaced 1/2 wavelength apart and the panels are spaced at 5/2 wavelengths. Plot the response of the array at 6 GHz. Assume the weights for each element within the subarray is unity.

c = physconst('LightSpeed');
fc = 6e9;
lambda = c/fc;
ant = phased.ShortDipoleAntennaElement;
array = phased.NRRectangularPanelArray(ElementSet={ant,ant}, ...
    Size=[4, 4, 2, 2], ...
    Spacing=[0.5*lambda,0.5*lambda,5*0.5*lambda,5*0.5*lambda], ...
    EnablePanelSubarray=true,SubarraySteering='Custom');

Display the array pattern.

pattern(array,fc,'ElementWeights',ones(16,8));

Compute the number of elements and the number of subarrays.

getNumElements(array)

ans = 
128

getNumSubarrays(array)

ans = 
8

Then get the subarray positions.

getSubarrayPosition(array)

ans = 3×8

         0         0         0         0         0         0         0         0
   -0.0625   -0.0625   -0.0625   -0.0625    0.0625    0.0625    0.0625    0.0625
    0.0625    0.0625   -0.0625   -0.0625    0.0625    0.0625   -0.0625   -0.0625