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US 2018/0123564 A1Published application
Cascaded resonator
AssigneeSnapTrack, Inc.
InventorAndreas BERGMANN
Life of this patent
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Abstract
In a resonator, two interdigital transducers (W1,W2) are electrically series-connected and arranged next to each other in the longitudinal direction within an acoustic track delimited by reflectors. Between the two interdigital transducers, a transition area (UEB) is formed in that the finger period p, which is defined as the distance between the finger centers of adjacent transducer fingers, is higher in comparison to the remaining interdigital transducer.
Claims12
A resonator
- wherein two interdigital transducers (W1,W2) are arranged next to each other in the longitudinal direction within an acoustic track delimited by reflectors (REF)C,
- wherein the interdigital transducers are electrically series-connected between two connections (T1,T2),
- wherein a transition area (UEB) is formed between the two interdigital transducers,
- wherein the transition area (UEB) n comprises terminal transducer fingers (WF) which are assigned to one or both interdigital transducers,
- wherein the finger period p, which is defined as the distance between the finger centers of adjacent transducer fingers, is higher in the transition area in comparison to the remaining interdigital transducer,
- wherein n is a whole number with 1<n<16.
3 more elements
Dependencies are inferred from the claim text.