Skyworks Solutions, Inc.

Chih-Ming Lin

Chun Sing Lam

Jie Zou

Jiansong Liu

Gong Bin Tang

Joshua James Caron

Toru Jibu

Aspects of this disclosure relate to an acoustic wave filter configured to filter a radio frequency signal and a loop circuit coupled to the acoustic wave filter. The loop circuit is configured to generate an anti-phase signal to a target signal at a particular frequency. The loop circuit includes a Lamb wave element. Related radio frequency modules and wireless communication devices are disclosed.

Lamb wave loop circuit for acoustic wave filter

Piston mode Lamb wave resonators are disclosed. A piston mode Lamb wave resonator can include a piezoelectric layer, such as an aluminum nitride layer, and an interdigital transducer on the piezoelectric layer. The piston mode Lamb wave resonator has an active region and a border region, in which the border region has a velocity with a lower magnitude than a velocity of the active region. The border region can suppress a transverse mode.

Piston mode lamb wave resonators

Piston mode Lamb wave resonators

Aspects of this disclosure relate to an acoustic wave device that includes a bulk acoustic wave resonator and a Lamb wave element implemented on a common substrate. In some instances, the bulk acoustic wave resonator can be a film bulk acoustic wave resonator. Related radio frequency modules and wireless communication devices are disclosed.

Lamb wave element and bulk acoustic wave resonator on common substrate

Growing community of inventors

Fremont, CA, United States of America

Chih-Ming Lin