Systems and Methods of RF Power Transmissions, Modulation, and Amplification, Including Cartesian 4-Branch Embodiments
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jan 4, 2013
filing date -
Oct 22, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.
First Claim
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