5.2 Discussion
From analysis results, a narrow 3dB beamwidth is achieved by
increasing the number of elements in the arrays for a fixed side lobe level.
Simulations show that the number of side lobes increases with
that of elements, but the side lobe level remains constant.
The beamwidth increases when the side lobe level decreases for
a fixed number of elements and inter-elements spacing, but the number of side
lobes doesn't change.
As the inter-elements spacing increases, the beamwidth
decreases. Thus, he number of side lobes multiples.
There is a generation of grating lobes when the inter-elements
spacing is equal to the wavelength.
Last but not least, the result shows that this synthesis can
be applied for achieving a narrow beamwidth accompanied by low side lobes
level.
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