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Pat. 10305519 United States, Int. Cl.22 H01Q 11/12, H02M 1/08, H02M 3/158, H03F 1/02, H03F 3/19, H03F 3/24, H04B 1/04, H02M 1/00. Power supply apparatus for power amplifier : Appl. N 15/147418 : Filed 05.05.2016 : Pub. 28.05.2019 : / Hui Dong Gwon, Gyu Hyeong Cho, Jeong Hoon Kim ; Assignee Samsung Electro Mechanics Co Ltd, Korea Advanced Institute of Science and Technology Kaist ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10305519/en?oq=US10305519.html (дата обращения: ДД.ММ.ГГГГ).