MATLAB code for Endfire Array in 3D% Version 1.0 %% Pre-initialisationclear;clc;close all; %% Accepting inputs N = input('\nEnter the number of Elements::(eg., 5,6,7,etc)->');d = input('\nEnter the distance between the elements::(eg.,0.4,0.5,etc)->'); tic; [theta phi] = meshgrid(linspace(0,2*pi,360));k = 2*pi;c = (k.*d)./2; %% Calculating Array element(AE) and Array Factor(AF) num = ((1./N).*sin(N.*c.*(cos(theta)+1)));den = sin(c.*(cos(theta)+1)); AF = num./den;AF = AF - min(min(AF)); AE = sqrt(1- ((sin(theta).^2).*(cos(phi).^2))); %% Calculating Array Pattern(AP) % Array Pattern is calculated as follows,%% Array Pattern = ArrayFactor * ArrayElement AP = AF .* AE; toc; %% Plotting results [x1,y1,z1] = sph2cart(phi,theta,AE); surf(x1,y1,z1,'FaceLighting','phong',... 'LineStyle','none',... 'FaceColor',[1 0 0]); legend('Array Element','Location','SouthEastOutside') axis image light('Style','local',... 'Position',[-10.162701816704 -0.924193626363743 14.9951905283833]); figure [x2,y2,z2] = sph2cart(phi,theta,AF); surf(x2,y2,z2,'FaceLighting','phong',... 'LineStyle','none',... 'FaceColor',[1 0 0]); legend('Array Factor','Location','SouthEastOutside') axis image light('Style','local',... 'Position',[-10.162701816704 -0.924193626363743 14.9951905283833]); figure

[x3,y3,z3] = sph2cart(phi,theta,AP); surf(x3,y3,z3,'FaceLighting','phong',... 'LineStyle','none',... 'FaceColor',[1 0 0]); legend('Array Pattern of Endfire Array','Location','SouthEastOutside') axis image light('Style','local',... 'Position',[-10.162701816704 -0.924193626363743 14.9951905283833]);

Enter the number of Elements::(eg., 5,6,7,etc)->5

Enter the distance between the elements::(eg.,0.4,0.5,etc)->0.5Elapsed time is 0.262391 seconds.>>