Matlab：在AntennaToolbox（TM）环境中实现天线阵列的创建与分析

    freq = 1.8e9;
    c = physconst('lightspeed');
    lambda = c/freq;
    N = 9;
    dx= 0.49*lambda;
    dipole_L = lambda/2;
    dipole_W = lambda/200;
    mydipole = dipole;
    mydipole.Length = dipole_L;
    mydipole.Width = dipole_W;
    mydipole.TiltAxis = 'Z';
    mydipole.Tilt = 90;
    fmin = freq - .05*freq;
    fmax = freq + .05*freq;
    minX = 0.0001;          % Minimum value of reactance to achieve
    trim = 0.0005;        
    resonant_dipole = dipole_tuner(mydipole,freq,fmin,fmax,minX,trim);
    Z_resonant_dipole = impedance