Location History:
- Sutton, EN (1977)
- Sutton, GB (1981)
Company Filing History:
Years Active: 1977-1981
Title: The Innovations of Frederick Warren Smith
Introduction
Frederick Warren Smith is a notable inventor based in Sutton, GB. He has made significant contributions to the field of acoustic wave devices and electrical filters, holding a total of 3 patents. His work has advanced the technology used in various electronic applications.
Latest Patents
One of Smith's latest patents involves acoustic wave devices. This invention features an acoustic wave resonator device that includes two pairs of coupled spaced apart reflectors, defining two resonant cavities. Each cavity is equipped with two interdigital transducers that facilitate intercavity coupling. The additional reactance coupling between the transducers in one cavity combines with the equivalent cavity reactance to provide series or parallel resonance at a selected pole frequency.
Another significant patent by Smith is related to electrical filters that include coupled resonators. This surface acoustic wave band-pass filter comprises a piezoelectric substrate with first and second SAW resonators tuned to the same frequency and coupled together. An input transducer is linked to the first resonator, while an output transducer is connected to the second resonator. Each resonator is formed by two spaced apart aligned grating reflectors, and they are coupled by an array of discrete parallel metallic strips extending between the two cavity resonators.
Career Highlights
Frederick Warren Smith has had a distinguished career at U.S. Philips Corporation, where he has been instrumental in developing innovative technologies. His expertise in acoustic wave devices has positioned him as a leader in his field.
Collaborations
Throughout his career, Smith has collaborated with notable colleagues, including Martin Redwood and Richard F. Mitchell. These partnerships have contributed to the advancement of his inventions and the overall progress in the field of acoustic technology.
Conclusion
Frederick Warren Smith's contributions to acoustic wave devices and electrical filters demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology in meaningful ways.