WSJ
Advancements in Power Amplifiers and Transmitters for Mobile Wireless Products
Time: Sunday, June 15th, 1pm - 5pm
Topics & Speakers:
- Market Trends and Key Design Challenges for Mobile Cellular & WiMax Transmitters, Dr. Ken Weller, Skyworks Solutions
- Overview, Transmitter Linearization and Efficiency Enhancement Techniques, Gord Rabjohn, SiGe Semiconductor
- Application of Adaptive Digital Predistortion for EDGE, W CDMA, and LTE Mobile Transmitters, Dr. George Norris, Freescale Semiconductor
- Advancements in Power Amplifiers for Polar Modulation Architectures, Wayne Kennan, RFMD
- Power Amplifier Architectures for 3G Handsets: Balanced vs. Single-ended Structure, Dr. Gary Zhang, Skyworks Solutions
- Switched Doherty PAs for 3G, Thomas Apel, Triquint Semiconductor
- Improvements in Power Amplifier Performance via Adaptive Antenna Matching Techniques, Andre Van Bezooijen, NXP Semiconductor
Organizers:
Joseph Staudinger, Freescale Semiconductor
Dr. Natalino Camilleri, Alien Technology
Sponsors: RFIC
Workshop Abstract:
Advancements in wireless transmitters continue to focus on improving efficiency while maintaining acceptable levels of linearity. Emerging high speed data centric services result in RF signals which are particularly challenging to amplify in a handset environment. The large dynamic range and high instantaneous bandwidths are difficult to linearly amplify, especially in very low cost small footprint packaging. Additionally, multi-mode and multi-band operation further extends the operational performance space of the underlying power amplifier. Current efforts focus on both the overall transmitter architecture as well as the underlying power amplifier circuit. Several presentations focus on the application of adaptive digital pre-distortion linearization techniques supporting 2.5G, 3G, and LTE signal formats. Subsequent presentations examine innovative circuit techniques employed to improve the underlying amplifier. |
