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Phase Predistortion of a Class-D Outphasing RF Amplifier in 90 nm CMOS

• Jonas Fritzin, Ylva Jung, Per Niklas Landin, Peter Händel, Martin Enqvist, Atila Alvandpour
• IEEE Transactions on Circuits and Systems II…
• 2011

This brief presents a behavioral model structure and a model-based phase-only predistortion method that are suitable for outphasing RF amplifiers. The predistortion method is based on a model of the… (More)

Least-Squares Phase Predistortion of a +30 dBm Class-D Outphasing RF PA in 65 nm CMOS

• Ylva Jung, Jonas Fritzin, Martin Enqvist, Atila Alvandpour
• IEEE Transactions on Circuits and Systems I…
• 2013

This paper presents a model-based phase-only predistortion method suitable for outphasing radio frequency (RF) power amplifiers (PA). The predistortion method is based on a model of the amplifier… (More)

Estimating models of inverse systems

• Ylva Jung, Martin Enqvist
• 52nd IEEE Conference on Decision and Control
• 2013

This paper considers the problem of how to estimate a model of the inverse of a system. The use of inverse systems can be found in many applications, such as feedforward control and power amplifier… (More)

Standard two-stage and Nonlinear mixed e ff ect modelling for determination of cell-to-cell variation of transport parameters in Saccharomyces cerevisiae

• Examensarbete utfört, Ylva Jung, Gunnar Cedersund
• 2012

The interest for cell-to-cell variation has in recent years increased in a steady pace. Several studies have shown that a large portion of the observed variation in the nature originates from the… (More)

Modeling and Identification of Wear in a Robot Joint under Temperature Uncertainties ?

• André Carvalho Bittencourt, Patrik Axelsson, Ylva Jung, Torgny Brogårdh
• 2010

This paper considers the problem of wear estimation in a standard industrial robot joint. Motivated by the observation that the wear processes in a robot actuator cause an increase of the friction… (More)

Institutionen för systemteknik Department of Electrical Engineering Examensarbete Attenuation of Harmonic Distortion in Loudspeakers Using Non-linear Control

• Marcus Arvidsson, Daniel Karlsson, Ylva Jung, Paer Gunnars Risberg, Martin Enqvist
• 2012

The first loudspeaker was invented almost 150 years ago and even though much has changed regarding the manufacturing, the main idea is still the same. To produce clean sound, modern loudspeaker… (More)

Predistortion of a Radio Frequency Power Amplifier

• Ylva Jung
• 2010

A linearized digital radio frequency (RF) power amplifier (PA), a switched RF PA, is more power efficient than an analog amplifier, but may cause interference in adjacent transmitting channels… (More)

Examensarbete Linearisation of micro loudspeakers using adaptive control

• Ebba Wilhelmsson, Ylva Björk, Ylva Jung, Pär Gunnars Risberg, Martin Enqvist
• 2014

Loudspeakers were invented over 150 years ago, but the loudspeakers used today are still based on the same ideas. Traditionally, good sound quality has been obtained by using expensive materials in… (More)

Examensarbete Estimation of Inter-cell Interference in 3 G Communication Systems

• Dan Gunning, Pontus Jernberg, Ylva Jung, Graham Goodwin, Katrina Lau
• 2011

In this thesis the telecommunication problem known as inter-cell interference is examined. Inter-cell interference originates from users in neighboring cells and affects the users in the own cell.… (More)

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