Brought to you by The Radio Technology Group
Ever greater demands are being made on RF power amplifiers, in the quest for better radio channel capacity, by using higher order modulation schemes. At the same time, the move to mobile devices means battery life is paramount, driving amplifiers to achieve better efficiency.
This workshop will give a grounding in RF amplifier design as well as introducing techniques of interest to experienced engineers. It will start with an overview of RF power amplifier operation before covering the different strategies available to designers for trading-off the conflicting demands of
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Rohde & Schwarz is one of the world's leading manufacturers of information and communications technology products for professional users.
View profileThe information supplied below may be subject to change before the event.
Prof. Cripps graduated from Cambridge University, England, with a Masters and Ph.D. in the mid 1970’s, and then spent many years working in the microwave electronics industry, both in the UK and California. This included spells as designer, manager, company founder (Celeritek), and independent consultant. He has written several books on RF Power Amplifiers and was the recipient of both 2008 IEEE Microwave Applications Award and the 2015 Microwave Prize for his work in RFPA design. Prof. Cripps is currently a Distinguished Research Professor at Cardiff University, Wales, UK and a Life Fellow of the IEEE.
Gareth Lloyd graduated from the University of Leeds in 1994 with a degree in Electronic & Electrical Engineering. Gareth has worked in various engineering and management roles, in different industries, for major companies including Ericsson, Huawei, ZTE, TriQuint and Andrew Corporation. Gareth joined Rohde & Schwarz in 2015, as a Individual Contributor. His primary work focus is performance differentiated radio front-ends (RFFE). With R&S, he is the primary named on nine granted Patents and a further five Patent Applications.
Kevin Morris received the B.Eng. and Ph.D. degrees in electronics and communications engineering from the University of Bristol, Bristol, U.K., in 1995 and 2000, respectively. He is currently a Professor of Radio Frequency engineering and Head of the School of Electronic and Electrical Engineering at the University of Leeds. He has authored or co-authored over 130 academic papers, and he holds five patents. His research principally concerns looking at methods of reducing power consumption in communications systems with specific interest in the design of efficient frequency flexible transceivers. He is currently involved with several industrial and Engineering and Physical Sciences Research Council (EPSRC) research projects. He was the Head of the Department of Electrical and Electronic Engineering at the University of Bristol from 2014 to 2018.
Chris Potter is presently a consultant and director with Cambridge RF Ltd. in Cambridge UK, working on circuit-level design and product integration and approvals. Diverse projects for clients include the fields of GPS receivers, Bluetooth testers, Envelope Tracking PAs, Security tag readers, Zigbee consumer products, Microwave radios, and DVB over fibre. Previously, he was Principal Engineer at Marconi Instruments, where he designed a variety of microwave and RF test equipment including signal generators and network analyzers. Later he held the post of Chief RF Technologist at Tality UK (formerly Symbionics), working on RF architectures and product designs for GSM, EDGE, Bluetooth, 802.11a/b and W-CDMA. His research interests include adaptive linearization of PAs. He also runs Aphena Ltd, a software company that produces tools for RF engineers to help with measurement automation during the design process. Chris Potter received his Ph.D. degree on the subject of Microwave Network Analysers in 1987 from the University of London, England.
Gerard Wimpenny graduated from Cambridge University in 1983 with a degree in Electrical Sciences. He worked on a wide variety of RF and PAs developments at BBC R&D and subsequently as Technical Director at Symbionics/Tality. He joined Cambridge startup Nujira as CTO in 2004 and worked on Envelope Tracking modulators with output powers spanning 1W to >1000W. Nujira was acquired by Qualcomm in 2015 and Gerard now works at Qualcomm UK as a Senior Director of Technology focusing on Envelope Tracking.
Mark Beach received his PhD for research addressing the application of Smart Antenna techniques to GPS from the University of Bristol in 1989, where he subsequently joined as a member of academic staff. He was promoted to Senior Lecturer in 1996, Reader in 1998 and Professor in 2003. He was Head of the Department of Electrical & Electronic Engineering from 2006 to 2010, then spearheaded Bristol’s hosting of the EPSRC Centre for Doctoral Training (CDT) in Communications. He is the Co-Director of this centre. He leads research in the field of enabling technologies for the delivery of 5G and beyond wireless connectivity; which includes the recent award of an EPSRC Prosperity Partnership in the field of Secure Wireless Agile Networks (SWAN). Mark’s current research activities are delivered through the Communication Systems and Networks Group, forming a key component within Bristol’s Smart Internet Lab. He has over 30 years of physical layer wireless research embracing the application of Spread Spectrum technology for cellular systems, adaptive or smart antenna for capacity and range extension in wireless networks, MIMO aided connectivity for through-put enhancement, experimental evaluation and optimization of Massive MIMO, Millimetre Wave technologies as well as flexible RF technologies for SDR modems. With a strong industrially focused research portfolio, he is also the School Research Impact Director.
Brian has designed antennas for applications including radio and TV broadcasting, base stations, handsets and consumer products, and has operated his own consultancy firm for the last 12 years. He has published more than 70 papers on antenna topics and contributed chapters to several recent textbooks. He operates a small consultancy company, chairs the Antenna Interface Standards Group and is an Honorary Visiting Professor in the School of Electronic Engineering and Computer Science at Queen Mary, University of London.
Paul is a wireless technology expert with experience across a range of areas including research, design, implementation and standardisation. He received his PhD from the University of Bristol for evaluating the performance of massive MIMO technology in the lead-up to 5G and is currently a Principal Wireless Architect within the CTO Office at VIAVI Solutions providing thought leadership on new and emerging technologies for 5G, 6G and beyond. In line with this he represents VIAVI within a range of bodies and fora including 3GPP, the O-RAN Alliance, ETSI, the Next G Alliance, the 6G-IA and the UKTIN. His experience prior to joining VIAVI includes representing Vodafone within 3GPP for radio performance aspects, contributing to the development of massive MIMO channel estimation solutions at Cohere Technologies, and working with customers as a domain expert at National Instruments to establish effective research solutions using software-defined radio. He is also a Chartered Engineer, Senior Member of the IEEE, Fellow of the ITP, and an Honorary Industrial Fellow at the University of Bristol.
Peter has been working in the cellular industry for over 15 years, specialising in modem system architecture and physical layer development. Before joining TTP, Peter worked in the development of 2G/3G/4G wireless modem products and small-cell base station projects for a number of leading cellular equipment vendors. At TTP Peter has worked with a wide range of clients in the satellite and cellular communication domains, specialising in end-to-end system engineering, modem system development and advising on commercial aspects. Currently Peter is the TTP technical lead for 5G/6G activities and represents the company in range of industry bodies including 3GPP and UKTIN.
Peter has more than 30 years experience of RF and high-speed circuit design, taking chips into production ranging from FM Band II through cellular, Bluetooth and on to UWB at 10GHz. He has been with Qualcomm for 7 years, specialising in low-power RF design for portable and wearable products.
Presented by Chris Potter , Cambridge RF Ltd at Power Amplifier Techniques Workshop
Presented by Steve Cripps, University of Cardiff at Power Amplifier Techniques Workshop
Presented by Gerard Wimpenny, Qualcomm Technologies International at Power Amplifier Techniques Workshop
Presented by Kevin Morris, University of Bristol at Power Amplifier Techniques Workshop
Presented by Gareth Lloyd, Rohde and Schwarz at Power Amplifier Techniques Workshop
Cambridge Wireless
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