Wireless receiver with axial ratio and cross-polarization calibration
US9923712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2016 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Aug 1, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless receiver includes an antenna panel coupled to an H-combined/V-combined generation block, an axial ratio and cross-polarization calibration block to correct for an undesired variation in H-combined and V-combined outputs, and an LHCP/RHCP generation block to produce left-handed circularly polarized (LHCP) and right-handed circularly polarized (RHCP) outputs. The axial ratio and cross-polarization calibration block generates an H-corrected output by summing the H-combined output amplified by a first variable gain amplifier and the V-combined output amplified by a second variable gain amplifier, and a V-corrected output by summing the V-combined output amplified by a third variable gain amplifier and the H-combined output amplified by a fourth variable gain amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.