WSC:
ADVANCED POWER AMPLIFIER ICS FOR HIGH EFFICIENCY MOBILE TRANSMITTERS

Date & Time: Sunday, June 11; 8:00 AM to 5:00 PM

Location: Moscone Convention Center, TBD

Topics & Speakers:

• Modulation Trends and Key Specifications of Mobile Transmitters. E. Spears, RFMD
• Mobile Broadband Handset Transmitter Product Design Challenges, Ken Weller, Skyworks
• Polar Transmitter ICs for GSM/EDGE, Joe Staudinger, Freescale
• Transmitter and Polar Loop Design for GSM / EDGE, Tirdad Sowlati, Skyworks
• Open Loop Large Signal Polar Modulation for EDGE 8PSK, Alex Hietala, RFMD
• Vector Summed RFPA – Doherty, LINC, & Distributed Power Amplifier, Bob Stengel, Motorola
• PA Supply Modulation ICs, Larry Larson, UCSD
• Integrated Analog Techniques for Pre-Distortion Linearization of RF Power Amplifiers, Steve Kenney, Georgia Tech.
• Issues in Applying Digital Pre-distortion to Cellular Handset PAs, Claudio Rey, Freescale
• CMOS-based PAs, Ichiro Aoki, Axiom Microdevices Inc.

Organizers:

N. Camilleri, Alien Technology
J. Staudinger, Freescale

Sponsors: MTT-23 RFIC

Advancements in wireless transmitters have continued to focus on improving transmitter efficiency, at acceptable levels of linearity, while driving down both hardware cost and size. In addition, more spectrally efficient modulation techniques are being adopted to support the ever growing demands for high-speed data centric services. As such, it becomes ever more difficult to efficiently and cost-effectively amplify and transmit signals with wider instantaneous bandwidths and higher peak-to-average power ratios. This workshop will be both tutorial and advanced in nature. To begin, an overview of key transmitter requirements and specifications for a number of existing and emerging wireless systems will be reviewed. Secondly, a number of presentations will focus on some of the innovative developments occurring at the integrated circuit, system, and device technology levels. These include both stand-alone power amplifiers ICs, as well as more integrated transmitter architectures, and linearization systems. Selected examples will be presented for cellular and wireless data applications. Lastly, the intriguing possibility of implementing CMOS based power amplifiers will be examined.