James Douglas Marvill

Title: James Douglas Marvill: Innovator in Linear Power Amplification

Introduction

James Douglas Marvill is a notable inventor based in Bath, GB. He has made significant contributions to the field of linear power amplification, particularly through his innovative patent. His work focuses on optimizing control systems for amplifiers, which has implications for various applications in electronics.

Latest Patents

Marvill holds a patent titled "Spurious energy correlation for control of linear power amplifiers." This patent describes a control system for a linear feed-forward amplifier that utilizes the ratio of measured spurious energy. The system involves measuring receivers that are coupled to two monitoring points to assess the spurious energy content in the error signal and at the main output of the amplifier. By measuring the ratio of these detected spurious signals, the control system can optimize the settings of the second loop distortion cancellation. Additionally, with an extra monitoring point, the same technique can be applied to control an adaptive predistorter prior to the main amplifier.

Career Highlights

James Douglas Marvill is associated with Powerwave Technologies, Inc., where he continues to develop and refine technologies related to power amplification. His expertise in this area has positioned him as a valuable asset to the company and the industry at large.

Collaborations

Marvill has collaborated with notable colleagues, including Ross James Wilkinson and Craig Scott Rackstraw. These partnerships have contributed to the advancement of technology in their field.

Conclusion

James Douglas Marvill's innovative work in linear power amplification exemplifies the impact of focused research and development in electronics. His patent and contributions to Powerwave Technologies, Inc. highlight his role as a key inventor in this specialized area.