Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through accommodating differential coupling between VCOs thereof
US9531070B2 · kind B2 · utility
3Cited by
270References
15Claims
0Family size
Inventor
Key dates
| Filing date | Mar 17, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Jan 10, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/42
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method includes implementing a coupled Voltage Controlled Oscillator (VCO) array with a number of VCOs, and mixing Local Oscillator (LO) signals generated through the number of VCOs of the coupled VCO array with signals from antenna elements of an antenna array to introduce differential phase shifts in signal paths coupled to the antenna elements during performing beamforming with the antenna array. The method also includes accommodating differential coupling between the VCOs to improve immunity to noise and/or interference during the beamforming compared to the VCOs accommodating single-ended coupling therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.