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 | | Amplitude | Phase (Deg) | Amplitude | Phase (Deg) | Amplitude | Phase (Deg) |
| 1 | 0.2716 | 7.1444 | 0.0154 | 0.3249 | 0.0180 | 3.0626 | 2 | 0.2615 | 1.9282 | 0.0691 | 1.2790 | 0.0015 | 0.6149 | 3 | 0.4278 | 3.9834 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 4 | 0.4895 | 3.8468 | 0.3100 | 7.1814 | 0.3219 | 5.6422 | 5 | 0.5706 | 1.8943 | 0.4580 | 0.0017 | 0.4280 | 0.0872 | 6 | 0.7227 | 2.8477 | 0.6239 | 1.9097 | 0.6090 | 2.8531 | 7 | 0.8255 | 2.3399 | 0.7192 | 3.7367 | 0.7135 | 3.1334 | 8 | 0.8617 | 0.9593 | 0.8410 | 0.2160 | 0.8540 | 0.4014 | 9 | 0.9127 | 0.8437 | 0.9825 | 1.2352 | 0.9745 | 1.0881 | 10 | 1.0000 | 0.9971 | 1.0000 | 1.8251 | 1.0000 | 1.2017 | 11 | 1.0000 | 0.9971 | 1.0000 | 1.8251 | 1.0000 | 1.2017 | 12 | 0.9127 | 0.8437 | 0.9825 | 1.2352 | 0.9745 | 1.0881 | 13 | 0.8617 | 0.9593 | 0.8410 | 0.2160 | 0.8540 | 0.4014 | 14 | 0.8255 | 2.3399 | 0.7192 | 3.7367 | 0.7135 | 3.1334 | 15 | 0.7227 | 2.8477 | 0.6239 | 1.9097 | 0.6090 | 2.8531 | 16 | 0.5706 | 1.8943 | 0.4580 | 0.0017 | 0.4280 | 0.0872 | 17 | 0.4895 | 3.8468 | 0.3100 | 7.1814 | 0.3219 | 5.6422 | 18 | 0.4278 | 3.9834 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 19 | 0.2615 | 1.9282 | 0.0691 | 1.2790 | 0.0000 | 0.0000 | 20 | 0.2716 | 7.1444 | 0.0154 | 0.3249 | 0.0180 | 3.0626 |
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