公开(公告)号：US20250096747A1

公开(公告)日：2025-03-20

申请号：US18470039

申请日：2023-09-19

Applicant: QUALCOMM INCORPORATED

Inventor： Laya MOHAMMADI ,  Chirag Dipak PATEL ,  Chuan WANG ,  Bhushan Shanti ASURI

IPC: H03F3/195 ,  H03F1/56 ,  H04B1/40

Abstract: A phase shifter having an input matching network, a vector modulator connected to the input matching network, the vector modulator configured to alter an amplitude of signals provided by the input matching network, bias networks coupled to outputs of the vector modulator, and a combining circuit connected to the outputs of the vector modulator, the combining circuit configured to generate a first phase (θ1) signal from the outputs of the vector modulator.

公开(公告)号：US20220120788A1

公开(公告)日：2022-04-21

申请号：US17076581

申请日：2020-10-21

Applicant: QUALCOMM Incorporated

Inventor： Chuan WANG ,  Li LIU ,  Kevin Hsi-Huai WANG ,  Bhushan Shanti ASURI ,  Shrenik PATEL ,  Anushruti BHATTACHARYA ,  Laya MOHAMMADI ,  Sang-June PARK

IPC: G01R15/18 ,  H01Q3/30 ,  H01Q23/00 ,  H04B1/04 ,  G01R19/10

Abstract: Devices and methods for detection of active return loss for an antenna element of a plurality of antenna elements of a phased array antenna are provided. An exemplary device can convert a voltage differential at an input of a power amplifier (PA) to first current. The device can convert a coupled voltage corresponding to a signal transmitted from the PA to a respective antenna element, to a second current. The device can convert a reflected voltage corresponding to a signal reflected from the respective antenna element, to a third current. The device can convert the first current, the second current, and the third current to an output voltage at a generator output. The device can further have a controller that can adaptively generate codebooks for transmission based on the output voltage.