Patent · US Active

Polar modulator and method for determining an amplitude offset in a polar modulator

US7469130B2 · kind B2 · utility

4Cited by

2References

17Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Christian Mayer · Kleinraming, AT
Jose Moreira · Munich, DE
Helmut Herrmann · Hersbruck, DE
Günter Märzinger · Eisenlohrsweg, AT

Key dates

Filing date	Oct 21, 2005
Grant date	Dec 23, 2008
Priority date	—
Expiry date	Feb 6, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH03F3/24
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A polar modulator contains a first input for supplying an amplitude modulation word and a second input for supplying a phase modulation word. The first input is connected to a first signal path, and the second input is connected to a second signal path. The polar modulator contains a converter having a first input which is connected to a first signal path and having a second input which is connected to the second signal path. In this case, the converter is configured to output a radio-frequency signal derived from the phase modulation word and the amplitude modulation word. A feedback path has a level detector connected to the converter and has its output side connected to a correction device. The correction device is designed to output a correction word to the first signal path on the basis of a signal which is output by the level detector.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.