Antenna Array
Steering phase
-61.56 deg
main beam 20.0 deg
Approx. directivity
9.03 dBi
8 uniform isotropic elements
Half-power beamwidth
13.51 deg
first-null 30.49 deg
Grating lobes
Not visible
spacing 0.50 λ
Beam steering and array factor
Element spacing and phase tilt the main lobe.
The sketch shows how element phase tilts the beam; the chart shows real sidelobes as gain peaks versus angle.
20.0 deg main beam, 9.03 dBi
Normalized array factor
0 dB is the main lobe peak
13.51 deg
30.49 deg
not expected
No full-strength grating lobe is expected in the visible region.
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