(19)
(11) EP 4 508 748 A1

(12)

(43) Date of publication:
19.02.2025 Bulletin 2025/08

(21) Application number: 23705525.6

(22) Date of filing: 15.02.2023
(51) International Patent Classification (IPC): 
H03H 9/02(2006.01)
 H03H 9/72(2006.01)
(52) Cooperative Patent Classification (CPC):
H03H 9/02574; H03H 9/02834; H03H 9/02559; H03H 9/725
(86) International application number:
PCT/EP2023/053698
(87) International publication number:
WO 2024/170071 (22.08.2024 Gazette 2024/34)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(71) Applicant: Huawei Technologies Co., Ltd.
Shenzhen, Guangdong 518129 (CN)

(72) Inventors:
  • YANTCHEV, Ventsislav
    16440 Kista (SE)
  • KUSTANOVICH, Kiryl
    16440 Kista (SE)

(74) Representative: Pfenning, Meinig & Partner mbB 
Patent- und Rechtsanwälte Theresienhöhe 11a
80339 München
80339 München (DE)

   


(54) DEVICE FOR PRODUCING AN ACOUSTIC WAVE, AND RADIO FREQUENCY FILTER AND MULTIPLEXER COMPRISING THE SAME