Power amplification of a multi-tone test signal
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United States of America Patent
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Sep 9, 2014
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app pub date -
May 31, 2012
filing date -
May 31, 2012
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Abstract
Disclosed are a circuit and method for amplifying the power of a multi-tone input signal. The multi-tone input signal is filtered separating out one signal having a tone at a fundamental frequency from another signal having additional tones at additional frequencies. The signal having the tone at the fundamental frequency is amplified and then filtered removing any harmonics added during amplification. The signals are then recombined generating a multi-tone output signal, wherein the tone at the fundamental frequency is boosted (i.e., has a higher power in the multi-tone output signal than in the multi-tone input signal), but the additional tones at the additional frequencies are not (i.e., the additional tones at the additional frequencies have essentially the same power in the multi-tone output and input signals). Also disclosed herein are embodiments of a testing system and method incorporating the above-described circuit to allow for testing of high power devices.
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