Radar array phase shifter verification
US11879961B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Dec 13, 2021 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Jan 29, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/3233
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved circuit configuration is disclosed for calibrating and/or verifying the operation of phase shifters in a phased array radar system. In one illustrative embodiment, a method includes: (i) programming a set of phase shifters to convert a radio frequency signal into a set of channel signals; (ii) splitting off a monitor signal from each channel signal while coupling the set of channel signals to a set of antenna feeds; and (iii) while taking the monitor signals in pairs associated with adjacent channels, measuring a relative phase between each pair of monitor signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.