公开(公告)号：US20220140793A1

公开(公告)日：2022-05-05

申请号：US17143160

申请日：2021-01-07

Applicant: RichWave Technology Corp.

Inventor： Chih-Sheng Chen ,  Ching Wen Hsu

IPC: H03F3/19

Abstract: The invention provides a radio frequency (RF) amplifier apparatus including an amplifier and a resonance circuit. An input terminal of the amplifier receives an RF signal. The amplifier amplifies a first frequency component of the RF signal and outputs the amplified first frequency component to an output terminal of the amplifier. A first terminal and a second terminal of the resonance circuit are respectively coupled to the input terminal and the output terminal of the amplifier. The resonance circuit provides a low impedance path for a second frequency component of the RF signal between the input terminal and the output terminal of the amplifier, and provides a high impedance path for the first frequency component of the RF signal between the input terminal and the output terminal of the amplifier.

公开(公告)号：US11677361B2

公开(公告)日：2023-06-13

申请号：US17143160

申请日：2021-01-07

Applicant: RichWave Technology Corp.

Inventor： Chih-Sheng Chen ,  Ching Wen Hsu

IPC: H03F3/19 ,  H04B1/40

CPC classification number: H03F3/19 ,  H03F2200/129 ,  H03F2200/372 ,  H03F2200/451 ,  H04B1/40

Abstract: The invention provides a radio frequency (RF) amplifier apparatus including an amplifier and a resonance circuit. An input terminal of the amplifier receives an RF signal. The amplifier amplifies a first frequency component of the RF signal and outputs the amplified first frequency component to an output terminal of the amplifier. A first terminal and a second terminal of the resonance circuit are respectively coupled to the input terminal and the output terminal of the amplifier. The resonance circuit provides a low impedance path for a second frequency component of the RF signal between the input terminal and the output terminal of the amplifier, and provides a high impedance path for the first frequency component of the RF signal between the input terminal and the output terminal of the amplifier.