Compensation device for aiming errors caused by the malfunctioning of electronic scanning antenna phase-shifters or by the malfunctioning of coefficients of antennas with beam-shaping by computation
US5650786A · kind A · utility
1Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/267
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is a device to compensate for the aiming errors caused by malfunctions in phase-shifters of electronic scanning antennas. With the electronic scanning antenna being plane and having a power distribution that is symmetrical in amplitude and in phase, the device has means positioning a malfunctioning phase-shifter and its symmetrical phase-shifter in supplementary phase states. Application notably to landing systems requiring high precision for the aiming of the beam in free space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.