Browsing by Author "Gilabert Pinal, Pere Lluís"
Now showing items 1-20 of 112
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3-D distributed memory polynomial behavioral model for concurrent dual-band envelope tracking power amplifier linearization
(IEEE Microwave Theory and Techniques Society, 2015-02-01)
Article
Open AccessThis paper presents a new 3-D behavioral model to compensate for the nonlinear distortion arising in concurrent dual-band (DB) Envelope Tracking (ET) Power Amplifiers (PAs). The advantage of the proposed 3-D distributed ... -
3D digital predistortion for dual-band envelope tracking power amplifiers
(2013)
Conference lecture
Restricted access - publisher's policyThis paper proposes a novel three-dimensional digital predistorter (3D-DPD) suitable for compensating nonlinear distortion in dual-band (DB) envelope tracking (ET) power amplifiers (PAs). By taking into account the ... -
A class of stable nonlinear systems for modelling memory effects in RF power amplifiers
(Escuela Politécnica Superior Ingeniería Gijón, 2006)
Conference report
Open Access -
A dual-band outphasing transmitter using broadband class E power amplifiers
(2014)
Conference report
Restricted access - publisher's policyIn this paper, a dual-band outphasing transmitter (able of operating either at 770 MHz or 960 MHz frequency bands) is presented. Two broadband RF power amplifiers (PAs) have been designed over packaged GaN HEMT devices, ... -
A full FPGA-based implementation of an adaptive digital predistorter
(University California San Diego, 2009)
Conference report
Open Access -
A low-complexity memoryless model for envelope tracking RF power amplifiers
(European Microwave Association (EuMA), 2014)
Conference report
Restricted access - publisher's policyThis paper presents a new kind of behavioral model structure for characterizing static nonlinearities in dynamically supplied RF power amplifiers. The proposed architecture is based on the combination of several basic cells ... -
A method for real-time generation of slew-rate limited envelopes in envelope tracking transmitters
(2010-02)
Conference report
Open Access -
A method for selecting online the coefficients to be updated in a DPD for PA linearization
(2019)
Conference report
Restricted access - publisher's policyThis paper presents a technique for selecting onlinethe coefficients to be updated in a digital predistorter (DPD)based on direct learning. The proposed method, which is basedon a combination of matching pursuit (MP) and ... -
A new digital predictive predistorter for behavioral power amplifier linearization
(Institute of Electrical and Electronics Engineers (IEEE), 2007-06)
Article
Open AccessThis letter presents a new digital adaptive predistorter (PD) for power amplifier (PA) linearization based on a nonlinear auto-regressive moving average (NARMA) structure. The distinctive characteristic of this PD is ... -
A recursive digital predistorter for linearizing RF power amplifiers with memory effects
(2006-12)
Conference lecture
Open AccessA nonlinear auto-regressive moving average (ARMA) structure capable of compensating nonlinear memory effects in RF power amplifiers is here presented. Results on the linearity improvement, in both in-band and out-of-band ... -
A scalable bandwidth and frequency-dependent DPD linearizer for user equipment power amplifiers with nonflat frequency response
(Institute of Electrical and Electronics Engineers (IEEE), 2023-10-24)
Article
Open AccessThis article presents a scalable digital predistortion (DPD) linearizer for handset power amplifiers (PAs) with nonflat frequency response and assuming a 5G scenario with dynamic resource blocks (RBs) reallocation. The ... -
Adaptive envelope shaping for low and medium power amplifiers with dynamic supply
(2016-07-01)
Article
Open AccessThis letter presents an adaptive envelope shaping (AES) method to linearize low and medium power amplifiers (PAs) with dynamic supply. This straightforward linearization solution results very useful for small cell or handset ... -
Adaptive principal component analysis for online reduced order parameter extraction in PA behavioral modeling and DPD linearization
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Restricted access - publisher's policyThis paper presents a new method, based on the adaptive principal component analysis (APCA) technique, that iteratively creates and updates an orthogonal data matrix used to estimate the parameters of power amplifier (PA) ... -
Advanced design features of Doherty power amplifiers
(Unión Científica Internacional de Radio, 2012)
Conference report
Open AccessA Doherty power amplifier (DPA) is an effective structure born in 1936 which, after a scarce revival around year 2000), had been strengthened from 2005 because its capability to combine linear amplification with power ... -
Agnostic envelope linearization of dynamically supplied power amplifiers for mobile terminals
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-05-16)
Article
Open AccessThis paper presents an envelope linearization technique to compensate for the nonlinear distortion of envelope tracking (ET) power amplifiers (PAs) for 5G new radio (NR) mobile terminals. The proposed envelope optimization ... -
Amping up, saving power
(2016-01-01)
Article
Open AccessFourth-generation (4G) communication systems based on orthogonal frequency division multiplexing (OFDM) and the proposed backwards compatible fifth-generation (5G) variants, like filter-bank multicarrier (FBMC), are based ... -
An efficient combination of digital predistortion and OFDM clipping for power amplifiers
(2009-09)
Article
Restricted access - publisher's policy -
An LMS-based adaptive predistorter for cancelling nonlinear memory effects in RF power amplifiers
(2007-12)
Conference lecture
Open AccessThis paper presents the design of an adaptive Digital Predistorter (DPD) for Power Amplifier (PA) linearization whoseimplementation and real time adaptation can be fully performed in a Field Programmable Gate Array (FPGA). ... -
Analysis of inter-modulation products and nonlinear distortion in RF OFDM transmitter systems
(IEEE, 2009)
Conference report
Open Access -
Analysis of variations of volterra series models for RF power amplifiers
(2013)
Article
Restricted access - publisher's policyThis article discusses several different implementations of Volterra seriesmodels, and performs a fair comparison between them using measured data and well known figures of merit. Among the implemented models, an approach ...
