Phase calibration method and apparatus for phased array antenna
US12301296B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 25, 2022 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Apr 25, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phase calibration method for a phased array antenna is provided. The method includes: sequentially calibrating M×N antenna units based on a pre-obtained test voltage set including first test voltages; sequentially loading the first test voltages to the antenna unit in the ith row and the jth column, and acquiring phase and amplitude information of a microwave signal radiated by the antenna unit every time one first test voltage is loaded; acquiring first array vectors through analysis based on the phase and amplitude information of the acquired microwave signals of the antenna unit under different first test voltages; obtaining a calibration response vector of the antenna unit under each first test voltage in the test voltage set through a first preset algorithm based on the first array vector, and determining a target voltage-phase curve corresponding to the antenna unit in the ith row and the jth column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.