Bart C Vandebroek

Title: The Innovative Contributions of Bart C Vandebroek in RF Amplifier Technology

Introduction

Bart C Vandebroek, an accomplished inventor based in Penfield, NY, has made significant strides in the field of radio-frequency technology. With a diverse background that includes pivotal roles in notable companies, Vandebroek holds three patents that showcase his inventive prowess and dedication to advancing amplifier technology.

Latest Patents

Among his latest innovations is the "Active Bias for a Pulsed Power Amplifier." This high-power radio-frequency amplifier works by acting on periodic pulses of RF energy. In this design, the bias for each of a bank of FETs or other amplifier devices—forming the main power stage—is meticulously controlled. During a blanking period on the front porch of the RF gating signal, a sample of bias current is obtained. The quiescent drain current is then measured and stored on a sample/hold circuit. A digital signal processor plays a crucial role by providing bias values that are transmitted through a D/A converter to biasing circuits, which add necessary bias levels to the input RF signal. Should the bias current deviate from its desired level, the stored bias is adjusted accordingly. This invention also incorporates a timing control circuit that ensures proper gating of the sample/hold circuit ahead of the biasing circuits while generating a blanking signal to create a null region in the first 100 microseconds of the gating signal. Additionally, a thermal sensor is integrated with amplifying devices, pre-setting the operating voltage to enhance efficiency during operation interruptions.

Career Highlights

Bart C Vandebroek has built a remarkable career with his involvement in multiple prestigious companies, including Astec America, Inc. and Eni Division of Astec America, Inc. His work within these organizations has provided him with the unique opportunity to develop innovative technologies that push the boundaries of radio-frequency applications.

Collaborations

Throughout his career, Bart Vandebroek has collaborated with various professionals, including Anthony R Keane, contributing to a dynamic exchange of ideas and expertise. This collaborative environment has played a significant role in fostering innovative developments in their field.

Conclusion

Bart C Vandebroek's contributions to the field of RF technology exemplify the impact that skilled inventors can have in advancing modern engineering solutions. With three patents under his name, Vandebroek continues to innovate and influence the industry, paving the way for future advancements. His commitment to enhancing techniques in high-power radio-frequency amplifiers marks him as a notable figure in the evolving landscape of technology.