Prerequisites

To be able to excecute the following scripts, you need one of the following software programs:

• Scilab (tested with version 3.1.1)
• Matlab (needs small adjustments)
• octave (needs small adjustments)

Demonstration Scripts

Remember, that the polar plot is a rotated/mirrored image of the 3D field cut! (limitation of scilab). The following scripts resemble the examples in the scriptum.

Isotropic elements, equal amplitude and phase (uniform)

Parameter set: d = lambda/2; I2 = I1
ant_scilab_arrays_1.sce   Polar Plot

Parameter set: d = 2*lambda; I2 = I1
ant_scilab_arrays_2.sce   Polar Plot

Isotropic elements, equal amplitude, antiphase

Parameter set: d = lambda/2; I2 = -I1
ant_scilab_arrays_3.sce   Polar Plot

Parameter set: d = lambda; I2 = -I1
ant_scilab_arrays_4.sce   Polar Plot

Isotropic Elements, equal amplitude (uniform), phase quadrature

Parameter set: d = lambda/4; I2 = I1*exp(i*90°)
ant_scilab_arrays_5.sce   Polar Plot

Parameter set: d = lambda/2; I2 = I1*exp(i*90°)
ant_scilab_arrays_6.sce   Polar Plot

Hertzian dipole in z-axis, equal amplitude (uniform), phase quadrature

Parameter set: d = lambda/4; I2 = I1*exp(i*90°); f = sin( theta )
ant_scilab_arrays_7.sce   Polar Plot

Hertzian dipole in x-y plane, equal amplitude, antiphase

Parameter set: d = lambda/2; I2 = -I1; f = cos( theta )
ant_scilab_arrays_8.sce   Polar Plot