Direct outphasing modulator

Details Direct outphasing modulator Direct outphasing modulator

2007-06-26

2007-06-26

Vo, Nguyen T. (Department: 2618)

Telecommunications

Transmitter

Plural modulation

C455S103000, C455S126000

Reexamination Certificate

active

10745627

ABSTRACT:
Embodiments of the invention describe a modulator having first and second synthesizers, for example, fractional-N synthesizers, that generate first and second outphased modulated signals with aligned phases. Embodiments of the modulator may align the phases of the outphased signals using first and second feedback loops associated with first and second modulation paths of the modulator.

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U.S. Appl. No. 10/603,860, filed Jun. 26, 2003, Hasson et al.

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