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US 2021/0083646 A1Published application
Saw resonator with improved power durability and heat resistance and rf filter comprising an saw resonator
AssigneeRf360 Europe GmbH
InventorChristian HUCK
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Abstract
An improved SAW (SAWR) resonator having an improved power durability and heat resistance and a protection to prevent device failure is provided. The SAW resonator has a carrier substrate (S) and an electrode structure (ES, EF) on a piezoelectric material (PM, PL). Further, the resonator has a shunt path (PCPP) parallel to the electrode structure and provided to enable an RF signal to bypass the electrode structure. The shunt path has a temperature dependent conductance with negative temperature coefficient of resistance.
Claims14
A SAW resonator, comprising
- a carrier substrate, an electrode structure and a piezoelectric material arranged between the carrier substrate and the electrode structure,
- a shunt path parallel to the electrode structure and provided to enable an RF signal to bypass the electrode structure,
- wherein
- the shunt path has a temperature dependent conductance.
1 more element
Dependencies are inferred from the claim text.