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POWER AMPLIFIER ARRAY WITH SAME TYPE PREDISTORTION AMPLIFIER
POWER AMPLIFIER ARRAY WITH SAME TYPE PREDISTORTION AMPLIFIER
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机译:具有相同类型预失真放大器的功率放大器阵列
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摘要
A power amplifier circuit (30, 60) improves the linearity of an amplified output signal. The power amplifier circuit (30, 60) includes an input (33, 63) for receiving a carrier signal (34, 64) and an array of combined amplifiers (32, 62) of a predetermined type for amplifying the carrier signal (34, 64). At least one amplifier (48, 78) of the predetermined type is located between the input (33, 63) and the array of combined amplifiers (32, 62) for amplifying the carrier signal (34, 64) to produce a predistorted carrier signal (34b1, 64b1) with a carrier signal component and a distortion component to condition the carrier signal (34, 64) for input into the array of combined amplifiers (32, 62), and specifically to compensate for nonlinearities produced by the array of combined amplifiers (32, 62).
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