US 12,278,618 B2
Dispersive delay line with lamb wave propagation
Siarhei Dmitrievich Barsukou, Takarazuka (JP)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Dec. 2, 2022, as Appl. No. 18/061,282.
Claims priority of provisional application 63/408,388, filed on Sep. 20, 2022.
Claims priority of provisional application 63/408,415, filed on Sep. 20, 2022.
Claims priority of provisional application 63/408,379, filed on Sep. 20, 2022.
Claims priority of provisional application 63/266,263, filed on Dec. 30, 2021.
Prior Publication US 2023/0216484 A1, Jul. 6, 2023
Int. Cl. H04W 88/02 (2009.01); H03H 9/02 (2006.01); H03H 9/13 (2006.01); H03H 9/17 (2006.01); H03H 9/36 (2006.01); H03H 9/40 (2006.01); H04B 1/00 (2006.01); H10N 30/87 (2023.01)
CPC H03H 9/40 (2013.01) [H03H 9/02228 (2013.01); H03H 9/02574 (2013.01); H03H 9/133 (2013.01); H03H 9/17 (2013.01); H03H 9/36 (2013.01); H04B 1/0053 (2013.01); H10N 30/871 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A dispersive delay line comprising:
a piezoelectric substrate including a first region, a second region, and a third region;
a first interdigital transducer electrode on the first region of the piezoelectric substrate;
a second interdigital transducer electrode on the second region of the piezoelectric substrate; and
an additional material on the third region of the piezoelectric substrate, the additional material configured to adjust acoustic wave propagation velocity in the third region of the piezoelectric substrate, the dispersive delay line arranged such that a Lamb wave of wavelength λ is configured to propagate from the first interdigital transducer electrode to the second interdigital transducer electrode though the third region of the piezoelectric substrate with a group delay that depends on frequency.