(19)

(11)

EP 4 005 089 A2

(12)

(88) Date of publication A3: 15.04.2021 (43) Date of publication: 01.06.2022 Bulletin 2022/22 (21) Application number: 20775961.4 (22) Date of filing: 22.07.2020

(51) International Patent Classification (IPC):  H03G 1/00(2006.01) H03F 3/19(2006.01) H03G 3/30(2006.01) (52) Cooperative Patent Classification (CPC): H03G 1/0035; H03G 1/007; H03G 3/3084; H03F 3/45475; H03F 3/195; H03F 2200/451; H03F 2203/45514; H03F 2203/45524; H03F 2203/45522; H03F 2203/45528 (86) International application number: PCT/NL2020/050481 (87) International publication number: WO 2021/015618 (28.01.2021 Gazette 2021/04)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 23.07.2019 NL 2023557 (71) Applicant: Technische Universiteit Delft 2628 CN Delft (NL)	(72) Inventors: PERTIJS, Michiel Antonius Petrus 2600 AA Delft (NL) KANG, Eunchul 2600 AA Delft (NL) (74) Representative: Nederlandsch Octrooibureau  P.O. Box 29720 2502 LS The Hague 2502 LS The Hague (NL)