Pulse quadrature modulator and method
US10015038B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2016 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A pulse quadrature modulator generates both alpha and beta binary signals, each one serial bit switched at an RF carrier frequency at a fraction of a high speed quantization clock. The alpha and beta binary signals each have respective alpha and beta pulse edges nominally occurring at two times the RF carrier frequency. The alpha and beta pulse edges alternate respectively. The alpha and beta pulse edges are each synchronized to the high speed quantization clock switched based on the baseband I and Q signal inputs. First and second switches gate a power signal using a respective of the alpha or beta binary signals to respectively produce first and second power outputs. The first and second switches differentially drive an RF load such as an antenna across the first and second power outputs having pulse edges at nominally at an integer multiple of four times the RF carrier frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.