John Choo Saw

Title: Innovations of John Choo Saw

Introduction

John Choo Saw is a notable inventor based in Kanata, Canada. He has made significant contributions to the field of surface wave technology, holding a total of four patents. His work has implications in various applications, particularly in radio frequency circuits.

Latest Patents

One of his latest patents is titled "Longitudinally Coupled Double Mode Surface Wave Resonators." This invention features a resonator that includes two reflectors, two lateral inter-digital transducers (IDTs), and a center IDT arranged on a piezoelectric substrate. The design allows for the coupling of surface waves longitudinally between the IDTs, with the lateral IDTs operating in opposite signal phases. Another significant patent is "Cascaded Surface Wave Device Filters Providing Balanced and Unbalanced." This invention comprises two 2-pole surface wave device filters connected in cascade, which serve to reduce electromagnetic feedthrough and improve spurious mode suppression. These filters are particularly useful for cellular radio equipment.

Career Highlights

John Choo Saw is currently employed at Northern Telecom Limited, where he continues to innovate in the field of telecommunications. His work has been instrumental in advancing technologies that enhance communication systems.

Collaborations

Some of his notable coworkers include Mark S Suthers and Ji-Dong Dai, who have collaborated with him on various projects and patents.

Conclusion

John Choo Saw's contributions to surface wave technology and his innovative patents have made a significant impact in the telecommunications industry. His work continues to influence advancements in radio frequency applications.