Advances in Linearization of Wideband (GaN) Power Amplifiers
Date of original webcast: Tuesday, June 14, 2016
Duration: 1 hour
This presentation discusses the state of the art in achieving wideband (> 1 GHz) linearization of power amplifiers. Multi-octave bandwidth linearization has been achieved at frequencies from L through millimeter-wave bands. Basic linearization concepts are reviewed. Emphasis is placed on the use of predistortion linearization and particularly on its application with amplifiers employing GaN FET power devices. The trades between using a single predistortion linearizer and multi-band linearizers are discussed. The effect of harmonics (both even and odd order distortion products) and their correction for applications that cover more than an octave are considered.
Dr. Allen Katz is a professor of Electrical/Computer Engineering at The College of New Jersey.
Michael C. Hamilton
Dr. Michael C. Hamilton is an Associate Professor in the Electrical and Computer Engineering Department at Auburn University and the Assistant Director of the Alabama Microelectronics Science and Technology Center.