Modern RF amplifiers need both linearityand high efficiency. The linearity requirementis due to the use of modern modulationschemes, such as QAM (quadrature-amplitudemodulation) and OFDM ...

Power amplifiers (PA) are one of the most expensive and most power-consuming components in 3G base station architectures. They are inherently nonlinear, and when operated near saturation, cause ...

Digital predistortion (DPD) has emerged as a pivotal technique for enhancing the performance of radio frequency power amplifiers (RF PAs). By pre-adjusting the digital input signal to counteract the ...

What's required in a source for mixed-signal test. Key factors in achieving low distortion. Designing a signal-generation path. What is digital predistortion (DPD)? Using LDOs to power the test system ...

February 13, 2014. The new R&S SMW-K541 digital predistortion option from Rohde & Schwarz allows users to import predistortion coefficient tables directly into the R&S SMW200A. The signal generator ...