Effect of Randomness in Element Position on Performance of Communication Array Antennas in Internet of Things

Table 2

Parameters variations with systematic distortion and different random errors.

Performance	Random sample 1	Random sample 2	Random sample 3	Random sample 4	Statistic random error
Gain loss/dB
First SLL change/dB
in plane
in plane
Second SLL change/dB
in plane
in plane
Third SLL change/dB
in plane
in plane
Fourth SLL change/dB
in plane
in plane
Fifth SLL change/dB
in plane
in plane
Beam width change/°
in plane
in plane
Boresight pointing/°
in plane
in plane

Note. Every SLL is the right SLL, + indicates upgrade and right side of , and − indicates decrease and left side of .