US 12,266,333 B2
Matching media for perfect transmission of ultrasonic waves
Jeseung Lee, Anyang-si (KR); Jooa Park, Suwon-si (KR); and Yoon Young Kim, Seoul (KR)
Assigned to SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR); and CENTER FOR ADVANCED META-MATERIALS, Daejeon (KR)
Filed by Seoul National University R&DB Foundation, Seoul (KR); and CENTER FOR ADVANCED META-MATERIALS, Daejeon (KR)
Filed on Aug. 8, 2022, as Appl. No. 17/882,883.
Claims priority of application No. 10-2021-0108869 (KR), filed on Aug. 18, 2021.
Prior Publication US 2023/0054652 A1, Feb. 23, 2023
Int. Cl. G01K 11/02 (2006.01); G01N 29/28 (2006.01); G10K 11/02 (2006.01); H04R 1/30 (2006.01); H04R 1/32 (2006.01)
CPC G10K 11/02 (2013.01) [G01N 29/28 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A matching medium for perfect transmission of ultrasonic waves comprising:
a matching layer configured to have a single pattern in a predetermined perfect transmission condition at a boundary between an incident medium and a transmission medium and perfectly transmit the ultrasonic waves from the transmission medium to the incident medium,
wherein the single pattern is formed by controlling a plurality of predetermined design variables, and
wherein the single pattern includes semicircles at both ends of a rectangle in a longitudinal direction, and a plurality of single patterns are connected to each other along a longitudinal direction at predetermined rotational angles to have a Z shape.