Douglas D Fitzpatrick

Title: Innovations by Douglas D Fitzpatrick

Introduction

Douglas D Fitzpatrick is an accomplished inventor based in Palatine, IL (US). He has made significant contributions to the field of radio frequency technology, holding a total of 2 patents. His work focuses on methods and apparatuses that enhance the performance of transmitters and radio frequency circuits.

Latest Patents

Fitzpatrick's latest patents include a "Method and apparatus for correcting distortion in a transmitter." This invention addresses the distortion introduced by RF power amplifiers. The method involves a predistortion signal loop that characterizes the relationship between the input and output signals of the RF power amplifier. It also determines a predistorted input signal to compensate for the distortion. Additionally, any residual distortion is further reduced by a feedforward correction loop. Another notable patent is the "Radio frequency amplifier structure," which features a circuit designed with two parallel sections that work collectively through a signal splitter/switching circuit and a signal combiner. This design allows for individual tuning of each section before they are recombined for joint operation.

Career Highlights

Douglas D Fitzpatrick is currently employed at Motorola Corporation, a leading company in telecommunications and electronics. His work at Motorola has allowed him to develop innovative solutions that improve RF circuit performance.

Collaborations

Fitzpatrick has collaborated with notable coworkers, including Clark D Fischbach and William S Goumas. Their combined expertise has contributed to the advancement of technology in their field.

Conclusion

Douglas D Fitzpatrick's contributions to radio frequency technology through his patents and work at Motorola Corporation highlight his innovative spirit and dedication to improving communication systems. His inventions continue to influence the industry and pave the way for future advancements.