Calibration circuit and calibration method of wireless transceiver
US12308893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jan 2, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/21
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A calibration circuit and a calibration method for a wireless transceiver are provided. The wireless transceiver includes a transmission path and a reception path, and the transmission path includes a radio frequency (RF) circuit and a baseband amplifier. The calibration method includes the following steps: setting a target gain of the RF circuit according to a first gain setting value; receiving a first input signal through a coupling path and the reception path; measuring first power of the first input signal; setting the target gain of the RF circuit according to a second gain setting value; receiving a second input signal through the coupling path and the reception path; measuring second power of the second input signal; calculating a power difference between the first power and the second power; and adjusting at least one of the baseband amplifier and a digital circuit according to the power difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.