公开(公告)号：US20230275602A1

公开(公告)日：2023-08-31

申请号：US18310453

申请日：2023-05-01

Applicant: QUALCOMM Incorporated

Inventor： Vahid DABBAGH REZAEI ,  Ahmed ABBAS MOHAMED HELMY ,  Prakash THOPPAY EGAMBARAM

IPC: H04B1/00 ,  H03K3/2885

CPC classification number: H04B1/006 ,  H03K3/2885

Abstract: Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry for a t-switch with gate shunting. One aspect is an apparatus including a first differential switch having a control input. The apparatus further includes a second differential switch coupled to the first differential switch, the second differential switch a control input. A shunt capacitor is coupled between a first output and a second output of the first differential switch, and a first input and a second input of the second differential switch. A first shunt switch having a control input, an input, and an output has the input and the output coupled to the control input of the first differential switch. A second shunt switch having a control input, an input, and an output, has the input and the output coupled to the control input of the second differential switch.

公开(公告)号：US20250007624A1

公开(公告)日：2025-01-02

申请号：US18611179

申请日：2024-03-20

Applicant: QUALCOMM INCORPORATED

Inventor： Yunfei FENG ,  Li LIU ,  Chuan WANG ,  Vahid DABBAGH REZAEI ,  Vinod PANIKKATH ,  Alaaeldien Mohamed Abdelrazek MEDRA ,  Anosh DAVIERWALLA ,  Xinmin YU ,  Muhammad HASSAN ,  Wu-Hsin CHEN ,  Sherif Hassan Kamel EMBABI

IPC: H04B17/00 ,  H03F3/195 ,  H04B1/04 ,  H04B1/40

Abstract: A method of self-testing a transceiver integrated circuit substrate includes: providing a test signal to a transmission line that is communicatively coupled, or selectively communicatively coupled, to an input of a power amplifier of a first transceiver subcircuit of the transceiver integrated circuit substrate; providing the test signal from the transmission line to an LNA of an LNA of a second transceiver subcircuit of the transceiver integrated circuit substrate; and measuring the test signal before amplification by the LNA, or after amplification by the LNA, or both.

公开(公告)号：US20210409040A1

公开(公告)日：2021-12-30

申请号：US17327285

申请日：2021-05-21

Applicant: QUALCOMM Incorporated

Inventor： Vahid DABBAGH REZAEI ,  Ahmed ABBAS MOHAMED HELMY ,  Prakash THOPPAY EGAMBARAM

IPC: H04B1/00 ,  H04L25/24 ,  H03K3/2885

Abstract: Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry for a t-switch with gate shunting. One aspect is an apparatus including a first differential switch having a control input. The apparatus further includes a second differential switch coupled to the first differential switch, the second differential switch a control input. A shunt capacitor is coupled between a first output and a second output of the first differential switch, and a first input and a second input of the second differential switch. A first shunt switch having a control input, an input, and an output has the input and the output coupled to the control input of the first differential switch. A second shunt switch having a control input, an input, and an output, has the input and the output coupled to the control input of the second differential switch.