Electronically scanned antenna arrays with reconfigurable performance
US10224627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2015 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | May 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2629
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus may include a plurality of antenna elements forming an antenna array. The apparatus may further include a beamformer that determines one or more of phase and amplitude shifts to cause the plurality of antenna elements to produce a beam in the direction of a target. The apparatus may further include a null limiter comprising dither circuits. The dither circuits may dither the one or more of phase and amplitude shifts by adding noise to cause a side lobe of the beam to increase above a threshold value. The dither circuits may be enabled by a control signal, and the dithered one or more of phase and amplitude shifts may be provided to the antenna elements to produce the beam in the direction of the target with the side lobes above the threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.