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公开(公告)号：US20210399685A1
公开(公告)日：2021-12-23
申请号：US17328181
申请日：2021-05-24
Applicant: IMEC VZW , VRIJE UNIVERSITEIT BRUSSEL
Inventor： Sehoon Park , Jan Craninckx , Pierre Wambacq , Davide Guermandi
Abstract: An odd harmonic generation device is provided. The odd harmonic generation device includes an even harmonic generation unit and a mixer. In this context, the even harmonic generation unit is configured to generate two even harmonic signals on the basis of a fundamental signal. In addition to this, the mixer is configured to mix the fundamental signal with the two even harmonic signals to generate a desired odd harmonic signal.
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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
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.
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公开(公告)号：US11128326B2
公开(公告)日：2021-09-21
申请号：US17098178
申请日：2020-11-13
Applicant: IMEC vzw , Vrije Universiteit Brussel
Inventor： Johan Nguyen , Khaled Khalaf , Pierre Wambacq , Jan Craninckx
Abstract: A digital radio-frequency (RF) circuitry is disclosed. In one aspect, the circuitry includes a digitally controlled amplifier configured to receive an RF input signal and a digital control signal, and to output an amplitude controlled output signal. The digitally controlled amplifier includes one or more common-source amplifying unit cells. A respective common-source amplifying unit cell includes a sources node connected to a switching circuitry controllable by the digital control signal so as to activate or deactivate the common-source amplifying unit cell. The switching circuitry comprises a first switch configured to connect the source node with a first power supply node and a second switch configured to connect the source node with a second power supply node when activating and deactivating, respectively, the common-source amplifying unit cell.
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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.
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公开(公告)号：US11522502B2
公开(公告)日：2022-12-06
申请号：US17464631
申请日：2021-09-01
Applicant: IMEC VZW , VRIJE UNIVERSITEIT BRUSSEL
Inventor： Xinyan Tang , Pierre Wambacq
Abstract: A wideband radio-frequency transceiver front-end is provided. The transceiver front-end includes an antenna port and a transmission path coupled to the antenna port comprising a power amplifier and a first matching network. The transceiver front-end further includes a reception path coupled to the antenna port comprising a low noise amplifier and a second matching network. Furthermore, the transceiver front-end includes an impedance inverter coupled in-between the antenna port and the second matching network. Moreover, the transceiver front-end includes a controller comprising switching arrangement for a gate and a drain of the power amplifier. In this context, the controller is configured to initiate a first reception mode by connecting the gate of the power amplifier to ground and by connecting the drain of the power amplifier to a supply voltage.
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Patent Agency Ranking
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
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.
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公开(公告)号：US20210152197A1
公开(公告)日：2021-05-20
申请号：US17098178
申请日：2020-11-13
Applicant: IMEC vzw , Vrije Universiteit Brussel
Inventor： Johan Nguyen , Khaled Khalaf , Pierre Wambacq , Jan Craninckx
Abstract: A digital radio-frequency (RF) circuitry is disclosed. In one aspect, the circuitry includes a digitally controlled amplifier configured to receive an RF input signal and a digital control signal, and to output an amplitude controlled output signal. The digitally controlled amplifier includes one or more common-source amplifying unit cells. A respective common-source amplifying unit cell includes a sources node connected to a switching circuitry controllable by the digital control signal so as to activate or deactivate the common-source amplifying unit cell. The switching circuitry comprises a first switch configured to connect the source node with a first power supply node and a second switch configured to connect the source node with a second power supply node when activating and deactivating, respectively, the common-source amplifying unit cell.
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公开(公告)号：US10778190B2
公开(公告)日：2020-09-15
申请号：US15981165
申请日：2018-05-16
Applicant: IMEC VZW
Inventor： Kristof Vaesen , Pierre Wambacq
Abstract: A device for phase shifting is disclosed, comprising an input amplifier, a biasing circuit, a first output amplifier and a second output amplifier being variable-gain amplifiers, and a quadrature hybrid coupler. The input amplifier is connected to an input port of the coupler, the first output amplifier is connected to a through port of the coupler, the second output amplifier is connected to a coupled port of the coupler, and the biasing circuit is connected to an isolated port of the coupler. The device also includes, the quadrature hybrid coupler configured to receive, at the input port, an input signal from the input amplifier, output, at the through port, a through signal, receive, at the isolated port, a bias signal from the biasing circuit, and output, at the coupled port, a coupled signal having a phase differing from a phase of the through signal.
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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.
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公开(公告)号：US20240201317A1
公开(公告)日：2024-06-20
申请号：US18539394
申请日：2023-12-14
Applicant: IMEC VZW
Inventor： Andre Bourdoux , Pierre Wambacq , Giuseppe Gramegna
CPC classification number: G01S7/006 , G01S7/03 , G01S13/584 , G01S13/86
Abstract: Example embodiments describe a radio device for wireless communication and radar sensing, the radio device including: a transmitter configured to generate a modulated RF signal and to transmit the modulated RF signal via a transmitting antenna; and a receiver configured to receive a modulated RF signal via a receiving antenna and to down-convert the received modulated RF signal. The radio device additionally includes a selector unit configured to provide the receiver with a copy of the transmit modulated RF signal, or, a local oscillator signal for down-converting the received modulated RF signal, thereby enabling wireless communication and radar sensing operation.
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