Herb Evans

Title: Herb Evans: Innovator in Polar Transmitter Technology

Introduction

Herb Evans is a notable inventor based in Sunnyvale, CA, who has made significant contributions to the field of polar transmitter technology. With a total of 2 patents, his work focuses on methods that enhance the performance and efficiency of power amplifiers in communication systems.

Latest Patents

Herb's latest patents include innovative methods for tuning and controlling output power in polar transmitters. This power tuning method determines values of a magnitude control signal and an amplitude control signal necessary to set the output power of the polar transmitter to a target output power. The method is designed to operate continuously across a full dynamic range of output powers, eliminating the need for a closed-loop power detection mechanism. Another significant patent involves predistortion methods and apparatus for polar modulation transmitters. This method includes predistorting signals in both the amplitude and phase paths of the transmitter, utilizing a look-up table to store AM/AM and AM/PM predistortion coefficients.

Career Highlights

Herb Evans is currently employed at Panasonic Corporation, where he continues to develop cutting-edge technologies in the field of communications. His work has been instrumental in advancing the capabilities of polar modulation transmitters, making them more efficient and reliable.

Collaborations

Throughout his career, Herb has collaborated with talented individuals such as Christian Pennec and Wayne S Lee, contributing to the innovative projects at Panasonic Corporation.

Conclusion

Herb Evans stands out as a key figure in the development of polar transmitter technology, with his patents reflecting a commitment to innovation and excellence in the field. His contributions continue to shape the future of communication systems.