Company Filing History:
Years Active: 2022-2023
Title: Innovations by Andrew Alexander in Amplifier Technology
Introduction
Andrew Alexander is a notable inventor based in Belfast, GB, recognized for his contributions to amplifier technology. With a total of two patents to his name, he has made significant advancements in the field of modified Doherty amplifiers.
Latest Patents
His latest patents include the "90-degree lumped and distributed Doherty impedance inverter." This invention describes apparatus and methods for a modified Doherty amplifier operating at gigahertz frequencies. The combining of signals from a main amplifier and a peaking amplifier occurs prior to impedance matching of the amplifier's output to a load. An output impedance-matching element can be relied upon, which may include an output strip line, a shunt capacitor connected between the output strip line and ground, an output capacitor connected between the output strip line and an output bonding pad, and an inductive strip line connected between the output bonding pad and ground. Another patent also focuses on the "90-degree lumped and distributed Doherty impedance inverter," emphasizing the use of an integrated distributed inductor in an impedance inverter to combine the signals. The size of the impedance element can be selected by patterning during manufacture to tune the amplifier and allow power scaling for the amplifier.
Career Highlights
Andrew Alexander is currently employed at Macom Technology Solutions Holdings, Inc., where he continues to innovate in the field of amplifier technology. His work has contributed to advancements that enhance the performance and efficiency of amplifiers used in various applications.
Collaborations
He collaborates with notable coworkers such as Gerard J Bouisse and Andrew Patterson, contributing to a dynamic team focused on pushing the boundaries of technology in their field.
Conclusion
Andrew Alexander's innovative work in amplifier technology, particularly with his patents related to Doherty amplifiers, showcases his significant impact on the industry. His contributions continue to shape the future of amplifier design and functionality.