公开(公告)号：US20220360345A1

公开(公告)日：2022-11-10

申请号：US17811983

申请日：2022-07-12

Applicant: NXP B.V.

Inventor： Frank Op 't Eynde ,  Olivier Crand ,  Milad Piri

IPC: H04B17/00

Abstract: A measurement apparatus comprising a first terminal to receive an input signal of a circuit under test; a second terminal to receive an output signal of the circuit under test. A first and second phase splitter configured to generate a first and second phase signal, I1 and I2, and a first and second quadrature signal, Q1 and Q2. A first and second multiplexer, each coupled to the first terminal and the second terminal and configured to alternately pass the input and output signals of the circuit under test to the inputs of the first and second phase splitters. A double-quadrature mixer having four inputs configured to receive I1, Q1, I2, and Q2, and an output. A calculation unit to determine one or both of a phase shift of the circuit under test and/or a gain of the circuit under test based on the output of the double-quadrature mixer.

公开(公告)号：US11424840B2

公开(公告)日：2022-08-23

申请号：US17392334

申请日：2021-08-03

Applicant: NXP B.V.

Inventor： Frank Op 't Eynde ,  Olivier Crand ,  Milad Piri

IPC: H04B14/06 ,  H04B17/00

Abstract: A measurement apparatus comprising a first terminal to receive an input signal of a circuit under test; a second terminal to receive an output signal of the circuit under test. A first and second phase splitter configured to generate a first and second phase signal, I1 and I2, and a first and second quadrature signal, Q1 and Q2. A first and second multiplexer, each coupled to the first terminal and the second terminal and configured to alternately pass the input and output signals of the circuit under test to the inputs of the first and second phase splitters. A double-quadrature mixer having four inputs configured to receive I1, Q1, I2, and Q2, and an output. A calculation unit to determine one or both of a phase shift of the circuit under test and/or a gain of the circuit under test based on the output of the double-quadrature mixer.

公开(公告)号：US20220123703A1

公开(公告)日：2022-04-21

申请号：US17450370

申请日：2021-10-08

Applicant: NXP B.V.

Inventor： Gian Hoogzaad ,  Olivier Crand ,  Robert Victor Buytenhuijs ,  Serge Bardy

IPC: H03G3/30 ,  H03G1/00 ,  H03H11/24

Abstract: An attenuator arrangement comprising at least a first attenuation path configured to couple between a signal processing chain, SPC, and a measurement apparatus; said SPC comprising a first and second SPC terminal, said SPC configured to apply one or both of a gain and phase change on a signal passed between the SPC terminals; said measurement apparatus configured to measure one or both of the gain and the phase change applied by SPC by coupling to and receiving signals from said SPC terminals; wherein one of said first SPC terminal and said second SPC terminal is coupled to the measurement apparatus through said first attenuation path; and wherein the at least first attenuation path of the attenuator arrangement is configured to provide, selectively, for attenuation of the signal to the measurement apparatus to make the signal power of the signals from said SPC terminals more equal.

公开(公告)号：US11804911B2

公开(公告)日：2023-10-31

申请号：US17811983

申请日：2022-07-12

Applicant: NXP B.V.

Inventor： Frank Op 't Eynde ,  Olivier Crand ,  Milad Piri

IPC: H04B3/46 ,  H04B17/00

CPC classification number: H04B17/0085

Abstract: A measurement apparatus comprising a first terminal to receive an input signal of a circuit under test; a second terminal to receive an output signal of the circuit under test. A first and second phase splitter configured to generate a first and second phase signal, I1 and I2, and a first and second quadrature signal, Q1 and Q2. A first and second multiplexer, each coupled to the first terminal and the second terminal and configured to alternately pass the input and output signals of the circuit under test to the inputs of the first and second phase splitters. A double-quadrature mixer having four inputs configured to receive I1, Q1, I2, and Q2, and an output. A calculation unit to determine one or both of a phase shift of the circuit under test and/or a gain of the circuit under test based on the output of the double-quadrature mixer.

公开(公告)号：US20230170851A1

公开(公告)日：2023-06-01

申请号：US18056767

申请日：2022-11-18

Applicant: NXP B.V.

Inventor： Adam Erik Waks ,  Olivier Tesson ,  Olivier Crand

IPC: H03F1/32 ,  H03H11/20

CPC classification number: H03F1/3247 ,  H03H11/20 ,  H03F2200/451

Abstract: A phase shifter (100) with controllable attenuation and a method for controlling the phase shifter is disclosed, the phase shifter (100) comprising a plurality of transmission line segments (120, 220) coupled in series, wherein each said transmission line segment (120, 220) comprises an attenuation circuit (130, 230), selectively couplable between a signal line (126, 222) of the transmission line segment (120, 220) and ground to selectively attenuate a signal propagating through the transmission line segment (120, 220). Each transmission line segment (120, 220) is switchable between a first configuration providing a first phase shift for a signal propagating through the transmission line segment (120, 220) and a second configuration providing a second phase shift, greater than said first phase shift, for a signal propagating through the transmission line segment (120, 220).