a Matlab package for phased array beam shape inspection

55
ARRAY 50×20 1.50×1.50 δx=0.0° θ=0.00° W=0.68°
ELEMENT JITTER ∆t=500 ps ∆ψ=40.5° ∆a/a=19.9%
∆AF=−25.1%±1.0 ∆θ=−0.000°±0.010 ∆W=−0.000°±0.004
(a) Beam amplitude jitter
(b) Beam direction jitter
% / bin
10
5
% / bin
40
20
0
−28 −26 −24 −22
∆ AF max
[%]
(c) Beam width jitter
0
−0.05 0 0.05
∆θ [°]
% / bin
60
40
20
0
−0.05 0 0.05
∆W [°]
Figure 23: Jitter simulation 3. Simulated array factor jitter in a 50 × 20 element array
in x-direction, when element timing jitter is ∆t = 500 ps, the corresponding
element phase jitter 24 ◦ , 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.