公开(公告)号：US20240195367A1

公开(公告)日：2024-06-13

申请号：US18481259

申请日：2023-10-05

Applicant: NXP B.V.

Inventor： Xin Yang ,  Mark Pieter van der Heijden ,  Jasper Pijl ,  Zhe Chen

IPC: H03F3/24 ,  H01P5/18

CPC classification number: H03F3/24 ,  H01P5/18 ,  H03F2200/451

Abstract: A Radio-Frequency (RF) circuit for an RF front-end includes a balanced amplifier with first and second amplifiers and an output directional coupler. First and second ports of the output directional coupler are coupled to outputs of the first and second amplifiers, a third port of the output directional coupler is coupled to an input-output terminal that is configured to be coupled to an antenna, and a fourth port of the output directional coupler is coupled to an input of a receiver amplifier. In a transmit mode, the output directional coupler may couple an RF signal to the input-output terminal. In a receive mode, the output directional coupler may couple a signal received from an antenna to the input of the receiver amplifier.

公开(公告)号：US20240098906A1

公开(公告)日：2024-03-21

申请号：US18459759

申请日：2023-09-01

Applicant: NXP B.V.

Inventor： Xin Yang ,  Mustafa Acar ,  Zhe Chen ,  Dominicus MARTINUS WILHELMUS Leenaerts

IPC: H05K3/34 ,  H05K1/02

CPC classification number: H05K3/3405 ,  H05K1/0233 ,  H05K1/025 ,  H05K2201/10053

Abstract: A circuit comprising: a digital attenuator part comprising: a first and second attenuator terminal; a first inductor having a first terminal coupled to the first attenuator terminal and a second terminal coupled to the second attenuator terminal; a first switched arrangement comprising a first switch having a first switch-terminal and a second switch-terminal, wherein the first switch-terminal is coupled to the first terminal of the first inductor, and a first resistor and a first capacitor are arranged in parallel, coupled between the second switch-terminal and a reference voltage; and a second switched arrangement comprising a second switch having a first switch-terminal and a second switch-terminal, wherein the first switch-terminal is coupled to the second terminal of the first inductor, and wherein a second resistor and a second capacitor are arranged in parallel and coupled between the second switch-terminal and the reference voltage.

公开(公告)号：US20240106101A1

公开(公告)日：2024-03-28

申请号：US18459815

申请日：2023-09-01

Applicant: NXP B.V.

Inventor： Xin Yang ,  Mustafa Acar ,  Zhe Chen ,  Dominicus MARTINUS WILHELMUS Leenaerts

IPC: H01P5/12

CPC classification number: H01P5/12

Abstract: A circuit comprising: a common terminal, first terminal and second terminal, wherein the common terminal is coupled to a first and second circuit branch at a branch node; wherein the first/second circuit branches include a respective first/second quarter wavelength transmission line having a first end coupled to the branch node and a second end respectively coupled to the first/second terminal; wherein the first and second terminals are coupled together via a branch-interconnection arrangement; wherein the circuit comprises: a first switched arrangement comprising a first switch having a first and second switch-terminal, wherein the first switch-terminal is coupled to the common terminal, and wherein a first resistor and a first capacitor are arranged in parallel and coupled between the second switch-terminal and a reference terminal; and a second switched arrangement coupled to the first terminal, wherein the first quarter wavelength transmission line is coupled between the first and second switched arrangements.