Amplifier-Based Tuneable RF Predistortion for Radio-over-Fibre Systems

FPGA Implementation of a Hammerstein Based Digital Predistorter for Linearizing RF Power Amplifiers with Memory Effects

Power amplifiers (PAs) are inherently nonlinear elements and digital predistortion is a highly cost-effective approach to linearize them. Although most existing architectures assume that the PA has a memoryless nonlinearity, memory effects of the PAs in many applications ,such as wideband code-division multiple access (WCDMA) or orthogonal frequency-division multiplexing (OFDM), can no longer b...

Multi Look-Up Table Digital Predistortion for RF Power Amplifier Linearization

Novel Predistortion Techniques for RF Power Amplifiers

As the mobile phone is an essential accessory for everyone nowadays, predistortion for the RF power amplifiers in mobile phone systems becomes more and more popular. Especially, new predistortions for power amplifiers with both nonlinearities and memory effects interest the researchers. In our thesis, novel predistortion techniques are presented for this purpose. Firstly, we improve the digital...

Digital Predistortion of Power Amplifiers for Multichannel Wireless Systems

An LDMOS RF high power amplifier with improved intermodulation distortion performance using digital predistortion is presented. The application of digital linearization method is being tested with the help of circuit simulation software ADS.

High-performance digital predistortion test platform development for wideband RF power amplifiers

In this paper, a complete design procedure, together with robust system validation approaches, is presented for implementing a high-performance re-configurable digital predistortion (DPD) test platform for compensating for nonlinear distortion and memory effects induced by radio frequency (RF) power amplifiers (PAs) in the transmitters of modern wireless communication systems. This hardware and...