MMCOMM with support from UCLA develops techniques to design efficient linear power amplifiers for non-constant-envelope modulation. The developed technology can be used in CECOMM KaSAT mobile terminals and many commercial telecom radios. The design of efficient linear power amplifiers has remained as one of the most challenging goals for many years. This study includes multi-state combining and Digitized Envelope Elimination and Restoration schemes to reduce the effects of non-linear amplifiers and to increase the power efficiency. The combination of these two approaches together will realize a practical microwave power amplifier system with both high efficiency and high linearity. The proposed work will revolutionize the current microwave power amplifier design methodology, thus contribute significantly to both military and commercial system applications.
Benefits: This proposed effort would provide the military with efficient linear power amplifiers to meet the increasing data rate using complex modulation scheme. The higher efficiency would allow the use of KaSAT terminals in smaller mobile platforms including foot soldiers. The CECOMM KaSAT terminals will benefit greatly from this effort due to limited DC power constraint in mobile applications. As a developer and manufacturer of both commercial wireless systems and military communication systems, MMCOMM will be able to utilize the techniques to address the commercial telecom market for KaSAT terminals, terrestrial communications, and point-to-point/point-to-multipoint radios. We firmly believe that the commercial wireless communications will benefit greatly from this effort.
Keywords: Signal processing, Multi-state combining, Digital envelope elimination and restoration scheme (DEER), Highly efficient linear power amplifier, KaSAT, Wireless , Microwave, MMW
