Power amplifier arrangement and method for memory...

Details Power amplifier arrangement and method for memory... Power amplifier arrangement and method for memory...

2006-08-22

2006-08-22

Choe, Henry (Department: 2817)

Amplifiers

Hum or noise or distortion bucking introduced into signal...

C375S297000

Reexamination Certificate

active

07095278

ABSTRACT:
A device, system, and method are provided for a power amplifier arrangement. In embodiments of a Vdd modulated power amplifier arrangement, a memory correction block includes a Vdd predictor for predicting waveform distortions of a Vdd modulated power supply and a main-path corrector for pre-distorting the input to the power amplifier arrangement as a function of the input to the power amplifier arrangement, an input envelope signal determined as a function of the input to the power amplifier arrangement, and an output of the Vdd predictor. Embodiments of the invention provide for operating power amplifier arrangements having memory. In some embodiments, methods of training the Vdd predictor and the main-path corrector of the memory correction block are provided.

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Vuolevi, Joel; Manninen, Jani; Rahkonen, Timo; Cancelling the Memory Effects in RF Power Amplifers; IEEE, 2001, pp. 1-57 to 1-60.
Ding, Lei, et al.; A Robust Digital Baseband Predistorter Constructed Using Memory Polynomials; IEEE Transactions on Communications, vol. 52, No. 1, Jan. 2004, pp. 159-165.

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