Power amplification based on frequency control signal
First Claim
1. An apparatus comprising:
- a vector modulator configured to generate a plurality of substantially constant envelope signals;
a switch configured to receive the plurality of substantially constant envelope signals and a plurality of frequency control signals; and
a plurality of multiple-input-single-output (MISO) devices, wherein at least one of the plurality of MISO devices is selected, based on the plurality of frequency control signals, to combine the plurality of substantially constant envelope signals.
1 Assignment
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Accused Products
Abstract
Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals is 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.
695 Citations
20 Claims
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1. An apparatus comprising:
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a vector modulator configured to generate a plurality of substantially constant envelope signals; a switch configured to receive the plurality of substantially constant envelope signals and a plurality of frequency control signals; and a plurality of multiple-input-single-output (MISO) devices, wherein at least one of the plurality of MISO devices is selected, based on the plurality of frequency control signals, to combine the plurality of substantially constant envelope signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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generating a plurality of substantially constant envelope signals; receiving the plurality of substantially constant envelope signals and a plurality of frequency control signals; selecting at least one multiple-input-single-output (MISO) device from a plurality of MISO devices based on the plurality of frequency control signals; and combining the plurality of substantially constant envelope signals with the at least one selected MISO device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system comprising:
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a digital control module configured to generate a plurality of frequency control signals; a power supply module configured to generate a plurality of power supply signals; and a combining module configured to receive the plurality of frequency control signals and the plurality of power supply signals, wherein the combining module comprises; a vector modulator configured to generate a plurality of substantially constant envelope signals; a switch configured to receive the plurality of substantially constant envelope signals and the plurality of frequency control signals; and a plurality of multiple-input-single-output (MISO) devices, wherein at least one of the plurality of MISO devices is selected, based on the plurality of frequency control signals, to combine the plurality of substantially constant envelope signals. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification