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Generation and amplification of substantially constant envelope signals, including switching an output among a plurality of nodes
Generation and amplification of substantially constant envelope signals, including switching an output among a plurality of nodes
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机译:基本上恒定的包络信号的产生和放大,包括在多个节点之间切换输出
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摘要
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.
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