WHAT’S NEW IN DIGITAL PRE-DISTORTION
Abstract: In cellular wireless communications systems, the RF power amplifier (PA) in the transmitter must be as efficient as possible, to minimize energy costs, to prolong battery life, and for ‘green’ considerations. Modern spectrally-efficient, digitally-modulated signals such as LTE and UMTS present a challenge for efficient RF PA design, and the PA architectures that are adopted to achieve this goal are generally very nonlinear, and so some form of linearization technique is necessary. In this lecture we shall highlight some of the challenges that are being faced nowadays in the field of linearization of PAs using digital pre-distortion (DPD). These challenges result from the demands of higher spectral efficiency digital communication signals, wider bandwidth and multi-protocol signals, higher frequency radio operation, more rapid convergence in adaptive DPD – so-called ‘real-time’ DPD, greater linearization accuracy, and being able to accommodate memory effects. We will of course also describe some techniques for meeting these challenges, and present some ideas for new directions for DPD.
Biography: John Wood earned BSc and PhD degrees in Electrical and Electronic Engineering from the University of Leeds, UK. He is currently owner and technical consultant with Obsidian Microwave, LLC. He was with Maxim Integrated from 2011-15, where he responsible for RFIC system architecture and DPD developments. He was a Distinguished Member of the Technical Staff in the RF Division of Freescale Semiconductor, where he worked from 2005-11. From 1997-2005 he worked in the Microwave Technology Center of Agilent Technologies. His areas of expertise include the development of large-signal nonlinear and bias-dependent linear FET models, for diverse applications including RF power amplifiers and mm-wave ICs, nonlinear behavioral models for MMICs and module design, and the understanding of the impact, characterization, & control of nonlinearities and memory effects in high-efficiency PAs using DPD. He is author or co-author of over 150 papers and articles. He is a Fellow of the IEEE. He has been a Distinguished Microwave Lecturer for MTT Society, and has presented in-service/continuing education courses (Besser, CEI).
All PCJS IEEE meetings are open to the public. There is no admission charge and refreshments will be served. Armstrong Hall is the first building seen when you enter the TCNJ campus. Parking will be available on the right - look for signs. A post meeting dinner will be held at the Piccolo Trattoria. Please send e-mail to A.katz@ieee.org, if you plan to attend the dinner. Further Info: Contact Cassandra Pinkneypinkneyc@tcnj.edu. TCNJ directions and a campus map at: http://tcnj.pages.tcnj.edu/about/ campus-info/directions-to-tcnj/ & /campus-map/.
Date and Time
Location
Hosts
Registration
- Date: 12 Apr 2016
- Time: 09:30 PM UTC to 02:00 AM UTC
-
Add Event to Calendar
- 2000 Pennington Road , NJ
- Ewing, New Jersey
- United States 08628-0718
- Building: The College of New Jersey - Armstrong Hall
- Room Number: 144
- Click here for Map
Speakers
John Wood
Biography:
Biography: John Wood earned BSc and PhD degrees in Electrical and Electronic Engineering from the University of Leeds, UK. He is currently owner and technical consultant with Obsidian Microwave, LLC. He was with Maxim Integrated from 2011-15, where he responsible for RFIC system architecture and DPD developments. He was a Distinguished Member of the Technical Staff in the RF Division of Freescale Semiconductor, where he worked from 2005-11. From 1997-2005 he worked in the Microwave Technology Center of Agilent Technologies. His areas of expertise include the development of large-signal nonlinear and bias-dependent linear FET models, for diverse applications including RF power amplifiers and mm-wave ICs, nonlinear behavioral models for MMICs and module design, and the understanding of the impact, characterization, & control of nonlinearities and memory effects in high-efficiency PAs using DPD. He is author or co-author of over 150 papers and articles. He is a Fellow of the IEEE. He has been a Distinguished Microwave Lecturer for MTT Society, and has presented in-service/continuing education courses (Besser, CEI).
Agenda
5:30 pm Meeting in Armstrong Hall Room 144
7:00 pm Leave for dinner at Piccolo Trattoria (RSVP with A.katz@ieee.org)