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High-Efficiency RF Power Amplifiers for Mobile Wireless Base Stations

Will Envelope Tracking Raise the Bar Over Doherty Amplifiers?

Research Report

Pages
10
Deliverables
Released
1Q 2010
Product Code
RR-1718-10
Price
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New distributed base stations and the increasing use of remote radio heads will demand that RF power amplifiers become smaller and more efficient. This will especially be true as 4G evolves and complex modulation schemes using OFDM (such as LTE and WiMAX) become the order of the day.

This Research Report examines the types of linear RF power amplifiers in current use and compares their various linearity/efficiency configurations. It explores the implications of advanced RF power amplifier designs for modern mobile wireless base stations over the next five years.

Table of Contents


Section 1.
The Evolution of RF Power Amplifiers for Mobile Wireless Base Stationsi
1.1. Feed Forward
1.2. Analog Pre-Distortion
1.3. Adaptive Digital Pre-Distortion
1.4. Doherty/Adaptive Digital Pre-Distortion
1.5. Envelope Tracking/Adaptive Digital Pre-Distortion
1.6. How RF Power Amplifier Technologies Stack Up

Section 2.
Implications of Advanced RF Power Amplifier Designs on Modern Mobile Wireless Base Stations

Section 3.
Summary




2 Charts
  • Comparison of RFPA Efficiency by Circuit Configuration
  • Market Share of the Principal RF Power Amplifier Types for Mobile Wireless Base Stations
1 Figures
  • A Nujira Envelope Tracking Amplifier