a Matlab package for phased array beam shape inspection

53
ARRAY 50×20 1.50×1.50 δx=0.0° θ=0.00° W=0.68°
ELEMENT JITTER ∆t=100 ps ∆ψ=8.1° ∆a/a=20.2%
∆AF=−4.7%±0.6 ∆θ=0.000°±0.002 ∆W=−0.000°±0.002
20
(a) Beam amplitude jitter
100
(b) Beam direction jitter
% / bin
10
% / bin
50
0
−8 −6 −4 −2
∆ AF max
[%]
0
−0.05 0 0.05
∆θ [°]
100
(c) Beam width jitter
% / bin
50
0
−0.05 0 0.05
∆W [°]
Figure 21: Jitter simulation 1. Simulated array factor jitter in a 50 × 20 element array
in x-direction, when element timing jitter is ∆t = 100 ps, the corresponding
element phase jitter 8.1 ◦ , and the element amplitude jitter is 20% around
1. The undistorted beam has been directed in vertical direction, and has
half-power width of 0.68 ◦ in the x-direction.