公开(公告)号：US20230299478A1

公开(公告)日：2023-09-21

申请号：US18185181

申请日：2023-03-16

Applicant: IMEC VZW

Inventor： Yang Zhang ,  Jan Craninckx ,  Pierre Wambacq ,  Giuseppe Gramegna

IPC: H01Q3/34 ,  H01P1/213 ,  H01P5/12 ,  H04B7/0408

CPC classification number: H01Q3/34 ,  H01P1/213 ,  H01P5/12 ,  H04B7/0408

Abstract: A phased array transceiver element comprises a local oscillator stage for generating beamformed in-phase and quadrature local oscillator signals, the local oscillator stage comprising a phase shifter connectable to a reference frequency source and applying a first phase shift; a primary frequency multiplier input from the phase shifter and applying a primary frequency multiplication factor; a phase-splitting arrangement input from the primary frequency multiplier and having a first output and a second output, the phase-splitting arrangement applying a second phase shift at the first output and a third phase shift at the second output; a first secondary frequency multiplier input from the first output of the phase-splitting arrangement, having an output for the in-phase local oscillator signal, and applying a secondary frequency multiplication factor; and a second secondary frequency multiplier input from the second output of the phase-splitting arrangement, having an output for the quadrature local oscillator signal, and applying the secondary frequency multiplication factor.

公开(公告)号：US20210408993A1

公开(公告)日：2021-12-30

申请号：US17357543

申请日：2021-06-24

Applicant: IMEC VZW

Inventor： Yang Zhang ,  Pierre Wambacq

IPC: H03H7/40 ,  H04B1/04 ,  H04B1/18 ,  G01R27/16

Abstract: An RF impedance measurement circuit includes a sensing capacitor connectable with an RF signal path; a first amplitude detector and a first frequency divider, each coupled, with the measurement circuit in operation, to the RF signal path at a first terminal of the sensing capacitor; a second amplitude detector and a second frequency divider, each coupled, with the measurement circuit in operation, to a second terminal of the sensing capacitor; and a phase detection circuit connected to an output of the first frequency divider and to an output of the second frequency divider.

公开(公告)号：US11601109B2

公开(公告)日：2023-03-07

申请号：US17357543

申请日：2021-06-24

Applicant: IMEC VZW

Inventor： Yang Zhang ,  Pierre Wambacq

IPC: H03H7/40 ,  G01R27/16 ,  H04B1/04 ,  H04B1/18

Abstract: An RF impedance measurement circuit includes a sensing capacitor connectable with an RF signal path; a first amplitude detector and a first frequency divider, each coupled, with the measurement circuit in operation, to the RF signal path at a first terminal of the sensing capacitor; a second amplitude detector and a second frequency divider, each coupled, with the measurement circuit in operation, to a second terminal of the sensing capacitor; and a phase detection circuit connected to an output of the first frequency divider and to an output of the second frequency divider.

公开(公告)号：US12255408B2

公开(公告)日：2025-03-18

申请号：US18185181

申请日：2023-03-16

Applicant: IMEC VZW

Inventor： Yang Zhang ,  Jan Craninckx ,  Pierre Wambacq ,  Giuseppe Gramegna

IPC: H04B7/0408 ,  H01P1/213 ,  H01P5/12 ,  H01Q3/34

Abstract: A phased array transceiver element comprises a local oscillator stage for generating beamformed in-phase and quadrature local oscillator signals, the local oscillator stage comprising a phase shifter connectable to a reference frequency source and applying a first phase shift; a primary frequency multiplier input from the phase shifter and applying a primary frequency multiplication factor; a phase-splitting arrangement input from the primary frequency multiplier and having a first output and a second output, the phase-splitting arrangement applying a second phase shift at the first output and a third phase shift at the second output; a first secondary frequency multiplier input from the first output of the phase-splitting arrangement, having an output for the in-phase local oscillator signal, and applying a secondary frequency multiplication factor; and a second secondary frequency multiplier input from the second output of the phase-splitting arrangement, having an output for the quadrature local oscillator signal, and applying the secondary frequency multiplication factor.