Over-the-air calibration of antenna system
US12231178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2023 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Jul 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/21
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an embodiment, an apparatus includes a first baseband section to receive a calibration signal; a first radio frequency (RF) section configured to generate a RF calibration signal based on modulating the calibration signal. The calibration signal comprises an orthogonal code based signal. The apparatus includes a second RF section to receive the RF calibration signal and generate a received calibration signal based on demodulating the RF calibration signal; a calibration section; a first antenna electrically coupled to the first RF section and configured to transmit the RF calibration signal; and a second antenna electrically coupled to the second RF section and configured to receive the RF calibration signal. The calibration section is configured to determine one or more of gain, baseband delay, or RF delay to calibrate the first RF section; and the second antenna is switchable between receiving the RF calibration signal and transmitting an encoded data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.