Quadrature mixer arrangement
US9520834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2013 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/3863
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A quadrature mixer arrangement is disclosed, which is adapted to translate an input signal by a translation frequency. The mixer arrangement is operated at a clock rate that equals the translation frequency times an oversampling rate, wherein the oversampling rate is not a multiple of four. The mixer arrangement comprises a sequence generator, at least one pair of mixers, and one or more correction networks. The sequence generator generates an in-phase mixer translation sequence and a quadrature-phase mixer translation sequence based on the oversampling rate. The in-phase mixer translation sequence is a time-discrete representation of a translation frequency sinusoidal function sampled at the clock rate, and the quadrature-phase mixer translation sequence is a time-discrete representation of the translation frequency sinusoidal function phase-shifted by π/2 plus a phase deviation and sampled at the clock rate, wherein the phase deviation is a function of the oversampling rate. Each pair of mixers comprises an in-phase mixer and a quadrature-phase mixer, each adapted to translate a respective input signal based on the respective translation frequency. The one or more correction netw…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.