Location History:
- Sevenoaks, EN (1977)
- Sevenoaks, GB (1981)
Company Filing History:
Years Active: 1977-1981
Title: Martin Redwood: Innovator in Acoustic Wave Devices
Introduction
Martin Redwood is a distinguished inventor based in Sevenoaks, GB. He has made significant contributions to the field of acoustic wave devices, holding a total of 3 patents. His work has advanced the understanding and application of resonant cavity technologies.
Latest Patents
One of Martin Redwood's latest patents involves an acoustic wave resonator device that comprises a substrate carrying a pair of spaced apart reflectors. These reflectors form a resonant cavity that supports only three adjacent distinct resonant mode frequencies. An interdigital transducer is disposed on the substrate between the reflectors, featuring an array of electrodes symmetrically arranged relative to a central point of the cavity. This design allows for a plurality of electrode pairs, with the electrodes of each pair equally spaced on opposite sides of the central point. The central point of the cavity coincides with a node or an anti-node of the standing wave. Depending on how the electrodes are connected, the transducer can exhibit zero net coupling with different sets of alternate modes of the cavity.
Another notable patent by Redwood includes an acoustic wave resonator device that features two pairs of coupled spaced apart reflectors, defining two resonant cavities. Each cavity is equipped with two interdigital transducers that provide intercavity coupling. The additional reactance coupling between the transducers in one cavity combines with the equivalent cavity reactance to achieve series or parallel resonance at a selected pole frequency.
Career Highlights
Martin Redwood is currently associated with U.S. Philips Corporation, where he continues to innovate in the field of acoustic wave technologies. His work has been instrumental in developing devices that enhance the performance and efficiency of various applications.
Collaborations
Throughout his career, Martin has collaborated with notable colleagues, including Richard F. Mitchell and Frederick Warren Smith. These collaborations have further enriched his contributions to the field.
Conclusion
Martin Redwood is a prominent figure in the realm of acoustic wave devices, with a focus on resonant cavity technologies. His innovative patents and ongoing work at U.S. Philips Corporation highlight his commitment to advancing this important field.