Smart Power Amplifier

Conventional power amplification systems trade-off efficiency for linearity due to transistor operation limitations. The Smart Power Amplifier architecture improves RF power amplifier linearity without compromising efficiency. The prior art of generating outphased signals fixes the number of decomposed signals to two or more components. Fixing the number of decomposed signals complicates both the decomposition and combination tasks as a result of generating and merging signals of different characteristics that usually results in poor efficiency rates. Other techniques such as Digital Pre-Distortion do not utilize the full potential of RF transistors in terms of efficiency. The Smart Power Amplifier approach relies on a phased array architecture for linear and efficient power amplification using an adaptive system of massively parallel inexpensive power amplifiers. The system constructs and combines a variable number of specialized constant amplitude decomposed signals in real time [Reference1: Amir Ibrahim and Magdi Mohamed, "Signal Processing Method and Power Amplification Device", filed patent application (US20080080639-A1, WO2008039594-A1) with the United States Patent Office on September 28, 2006], [Reference2: Magdi Mohamed, Amir Ibrahim, and Weimin Xiao, "Method and Apparatus for Generating Outphased Signals", filed application (US20080095458-A1, WO2008051754-A2) with the United States Patent Office on October 19, 2006].

Category:

Science & Technology

Tags:

• Smart-Power-Amplifier
• Q-Filter-Structures
• Outphasing
• Chierix-Technique