Rf360 Singapore Pte. Ltd.

Aimeric Bisognin

Jacques-Antoine Damy

Charles Binninger

Xavier Perois

Matthias Pernpeintner

Olivier Tristan

An apparatus is disclosed for a surface acoustic wave (SAW) device a dual mode (DMS) resonator configuration with near synchronous operation. One aspect comprises a piezoelectric material, a first reflector disposed over the piezoelectric material, a second reflector disposed over the piezoelectric material, and a plurality of interdigitated transducers (IDTs) disposed over the piezoelectric material and positioned between the first reflector and the second reflector, wherein a magnitude of a pitch of electrode fingers in the first reflector and the second reflector is higher than a pitch of electrode fingers in the plurality of interdigitated transducers, wherein a variation of the pitch of the electrode fingers in the plurality of interdigitated transducers is less than 3% across the plurality of interdigitated transducers.

Near synchronous dual mode surface acoustic wave resonators

An apparatus for filtering is disclosed that implements a double-mode surface-acoustic-wave filter having a transition region with a partly uniform geometric property. In an example aspect, the double-mode surface-acoustic-wave filter includes at least one interdigital transducer with multiple fingers. The multiple fingers include a first set of fingers having a geometric property and a second set of fingers. The second set of fingers is positioned adjacent to the first set of fingers and is associated with an outer edge of the at least one interdigital transducer. The geometric property across a subset of the second set of fingers is substantially uniform. A value of the geometric property across the subset of the second set of fingers is different than a value of the geometric property across the first set of fingers.

Growing community of inventors

Antibes, France

Aimeric Bisognin