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公开(公告)号：US20230198492A1
公开(公告)日：2023-06-22
申请号：US17830970
申请日：2022-06-02
Applicant: REALTEK SEMICONDUCTOR CORP.
Inventor： Chia-Yi Lee , Kuan-Yu Shih , Chia-Jun Chang
CPC classification number: H03H7/38 , H03F3/19 , H04B1/44 , H03F2200/294
Abstract: A radio frequency transceiver device includes an antenna unit, a first matching circuit, a receiver circuit, a second matching circuit, a transmitter circuit, and an auxiliary circuit. The receiver circuit includes a mixer unit. The auxiliary circuit includes a first transformer coil and a second transformer coil. The first matching circuit and the receiver circuit are configured to form a first signal reception channel to receive, process, and transmit the first radio frequency signal to the mixer unit when the first radio frequency signal is a high gain radio frequency signal. The second matching circuit and the auxiliary circuit are configured to form a second signal reception channel to receive, process, and transmit the first radio frequency signal to the mixer unit when the first radio frequency signal is a middle-low gain radio frequency signal. Another radio frequency signal transceiver device further includes a third matching circuit.
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公开(公告)号：US11990269B2
公开(公告)日：2024-05-21
申请号：US17531796
申请日：2021-11-21
Applicant: Realtek Semiconductor Corp.
Inventor： Yang Chang , Chia-Yi Lee , Chia-Jun Chang
CPC classification number: H01F27/425 , H01F27/402
Abstract: An inductor device includes a first inductor, a second inductor, and at least one switch circuit. The second inductor is arranged to enclose the first inductor, and use a topmost layer metal to resist external interference for the first inductor. The at least one switch circuit is coupled to the second inductor, and is arranged to receive at least one control voltage, wherein the at least one control voltage is arranged to adjust conduction degree of the at least one switch circuit.
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公开(公告)号：US12119802B2
公开(公告)日：2024-10-15
申请号：US17830970
申请日：2022-06-02
Applicant: REALTEK SEMICONDUCTOR CORP.
Inventor： Chia-Yi Lee , Kuan-Yu Shih , Chia-Jun Chang
CPC classification number: H03H7/38 , H03F3/19 , H04B1/44 , H03F2200/294
Abstract: A radio frequency transceiver device includes an antenna unit, a first matching circuit, a receiver circuit, a second matching circuit, a transmitter circuit, and an auxiliary circuit. The receiver circuit includes a mixer unit. The auxiliary circuit includes a first transformer coil and a second transformer coil. The first matching circuit and the receiver circuit are configured to form a first signal reception channel to receive, process, and transmit the first radio frequency signal to the mixer unit when the first radio frequency signal is a high gain radio frequency signal. The second matching circuit and the auxiliary circuit are configured to form a second signal reception channel to receive, process, and transmit the first radio frequency signal to the mixer unit when the first radio frequency signal is a middle-low gain radio frequency signal. Another radio frequency signal transceiver device further includes a third matching circuit.
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公开(公告)号：US20230049051A1
公开(公告)日：2023-02-16
申请号：US17531796
申请日：2021-11-21
Applicant: Realtek Semiconductor Corp.
Inventor： Yang Chang , Chia-Yi Lee , Chia-Jun Chang
Abstract: An inductor device includes a first inductor, a second inductor, and at least one switch circuit. The second inductor is arranged to enclose the first inductor, and use a topmost layer metal to resist external interference for the first inductor. The at least one switch circuit is coupled to the second inductor, and is arranged to receive at least one control voltage, wherein the at least one control voltage is arranged to adjust conduction degree of the at least one switch circuit.
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