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公开(公告)号：US20250167742A1
公开(公告)日：2025-05-22
申请号：US18515284
申请日：2023-11-21
Applicant: RichWave Technology Corp.
Inventor： Yu-Chun Donald Lie
Abstract: A radio frequency power amplifier includes an input terminal, at least two amplifier paths, an asymmetric power combination circuit, and an output terminal. The input terminal receives a radio frequency signal. Each of the amplifier paths is coupled to the input terminal. Each of the amplifier paths amplifies the radio frequency signal to generate a corresponding amplified radio frequency signal. The asymmetric power combination circuit is coupled to the amplifier paths and combines the amplified radio frequency signals generated by the amplifier paths to generate a combined radio frequency signal. The output terminal outputs the combined radio frequency signal. Each of the amplifier paths generates the corresponding amplified radio frequency signal simultaneously, and a reverse isolation of each of the amplifier paths is better than about 35 dB.
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公开(公告)号：US20220116000A1
公开(公告)日：2022-04-14
申请号：US17128212
申请日：2020-12-21
Applicant: RichWave Technology Corp.
Inventor： Yu-Chun Donald Lie , Chuan-Chen Chao
Abstract: An amplifier device and a duplexer circuit are provided. The amplifier device includes a first differential amplifier circuit and a controller. The first differential amplifier circuit includes first and second radio frequency (RF) input terminals, first and second transistors, first and second adjustable capacitor circuits, and first and second RF output terminals. The controller adjusts capacitance values of the first adjustable capacitor circuit of the first differential amplifier circuit and the second adjustable capacitor circuit of the first differential amplifier circuit according to at least one of a characteristic related to a first RF input signal of the first differential amplifier circuit, a characteristic related to the second RF input signal of the first differential amplifier circuit, a matching deviation between the first transistor and the second transistor of the first differential amplifier circuit, and a characteristic of the amplifier device.
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公开(公告)号：US11476816B2
公开(公告)日：2022-10-18
申请号：US17128212
申请日：2020-12-21
Applicant: RichWave Technology Corp.
Inventor： Yu-Chun Donald Lie , Chuan-Chen Chao
Abstract: An amplifier device and a duplexer circuit are provided. The amplifier device includes a first differential amplifier circuit and a controller. The first differential amplifier circuit includes first and second radio frequency (RF) input terminals, first and second transistors, first and second adjustable capacitor circuits, and first and second RF output terminals. The controller adjusts capacitance values of the first adjustable capacitor circuit of the first differential amplifier circuit and the second adjustable capacitor circuit of the first differential amplifier circuit according to at least one of a characteristic related to a first RF input signal of the first differential amplifier circuit, a characteristic related to the second RF input signal of the first differential amplifier circuit, a matching deviation between the first transistor and the second transistor of the first differential amplifier circuit, and a characteristic of the amplifier device.
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