Paul K Tom

Title: Paul K Tom: Innovator in Microwave Technology

Introduction

Paul K Tom is a notable inventor based in Saratoga, CA (US). He has made significant contributions to the field of microwave technology, holding a total of 2 patents. His work primarily focuses on advancements in antenna systems and printed circuit boards.

Latest Patents

One of his latest patents is the "Dual-frequency microwave radio antenna system." This innovative antenna system is designed for navigation satellite receivers, tuned to dual-frequency transmissions from orbiting navigation satellites. The system features respective L1 and L2 microwave patch antennas that are mounted flat and adjacent to one another on a common ceramic substrate. These antennas are grounded to a ground plane on the opposite side of the substrate with vias. Each patch antenna connects to a nearby low-noise amplifier, which in turn connects to a signal combiner and a final radio frequency amplifier for down feed to a navigation satellite receiver. A direct current signal from the navigation satellite receiver selectively controls which low-noise amplifier operates, allowing for efficient power supply and frequency selection.

Another significant patent is the "Copper clad epoxy printed circuit board." This method for making printed circuit boards utilizes double treated copper foils for all inside conductor layers of multilayer packages. The substrates are made from alloys of epoxy and polyphenylene oxide (PPO) resin, which counteract the skin effect encountered at high frequencies. Direct bonds between inside surfaces are employed without using an oxide step that introduces unwanted oxides.

Career Highlights

Paul K Tom is currently associated with Trimble Navigation Limited, where he continues to innovate in the field of microwave technology. His work has had a profound impact on the development of navigation systems and high-frequency circuit boards.

Collaborations

Throughout his career, Paul has collaborated with notable coworkers such as Valentine L Denninger and Arthur N Woo. Their combined expertise has contributed to the advancement of technology in their respective fields.

Conclusion

Paul K Tom is a distinguished inventor whose work in microwave technology has led to significant advancements in navigation systems and printed circuit boards. His innovative patents reflect his commitment to enhancing technology in this critical area.