Research Article

Null Steering in Failed Antenna Arrays

Table 3

Element excitations corresponding to Case 2.

Element positions Double nulls at −42° and 20° without any fault Recovery of nulls with two faults at 3rd and 18th positions Recovery of nulls with three faults at 3rd, 18th and 19th positions
AmplitudePhase (Deg)AmplitudePhase (Deg)AmplitudePhase (Deg)

10.27167.14440.01540.32490.01803.0626
20.26151.92820.06911.27900.00150.6149
30.42783.98340.00000.00000.00000.0000
40.48953.84680.31007.18140.32195.6422
50.57061.89430.45800.00170.42800.0872
60.72272.84770.62391.90970.60902.8531
70.82552.33990.71923.73670.71353.1334
80.86170.95930.84100.21600.85400.4014
90.91270.84370.98251.23520.97451.0881
101.00000.99711.00001.82511.00001.2017
111.00000.99711.00001.82511.00001.2017
120.91270.84370.98251.23520.97451.0881
130.86170.95930.84100.21600.85400.4014
140.82552.33990.71923.73670.71353.1334
150.72272.84770.62391.90970.60902.8531
160.57061.89430.45800.00170.42800.0872
170.48953.84680.31007.18140.32195.6422
180.42783.98340.00000.00000.00000.0000
190.26151.92820.06911.27900.00000.0000
200.27167.14440.01540.32490.01803.0626