Digital Controlled Load-Modulated Analog Predistorter for GaN High-Power Amplifiers

In Satellite communication, the energy consumption of the transmitter and receiver are of great importance, since high power needs to be transmitted from earth stations and satellite transponders to allow the information to travel large distances. The power amplifier as a last stage in the transmitter is the most energy hungry component and making it more energy efficiency would reduce the overall energy consumption of the system. Gallium Nitride (GaN) is a new technology to design energy efficient power amplifiers, that is expected to replace the currently used Gallium Arsenide (GaAs) technology, mainly because it offers higher energy efficiency and is more suitable for high power applications. However, with these advantages, GaN brings the challenge of increased distortion to the design equation, which, if remained unsolved, affects the signal quality. TO BE CONT’D

Faculty Supervisor:

Mohamed Helaoui

Student:

Hwiseob Lee

Partner:

Norsat International Inc

Discipline:

Engineering - computer / electrical

Sector:

Information and communications technologies

University:

Program: