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A Digital RF Transmitter with Background Nonlinearity Correction
- Babamir, Seyed Mehrdad
- Advisor(s): Razavi, Behzad
Abstract
This dissertation describes a new digital transmitter architecture that automatically corrects static and dynamic nonlinearities with no need for digital predistortion or adaptation. We draw upon the Newton-Raphson method of solving equations and show that it leads to delta sigma modulation as a special case and to a compact, efficient transmitter in the general case. A complete transmitter realized in 28-nm CMOS technology achieves an overall efficiency of 50% while delivering +24 dBm with an adjacent channel power of -35.4 dB and a receive-band noise of -137 dBc/Hz.
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