公开(公告)号：US11835563B2

公开(公告)日：2023-12-05

申请号：US17672400

申请日：2022-02-15

Applicant: LitePoint Corporation

Inventor： Minh-Chau Huynh ,  Morten Damgaard ,  Christian Volf Olgaard

IPC: G01R29/10 ,  H04B17/10 ,  G01R29/08

CPC classification number: G01R29/0878 ,  G01R29/10 ,  H04B17/102

Abstract: Systems and methods are provided for systems and methods for using pulsed radio frequency (RF) signals to stimulate one or more modulated scattering probes (MSPs) to enable measurements of distance to and planarity of a surface of a wireless device under test (DUT).

公开(公告)号：US20230258702A1

公开(公告)日：2023-08-17

申请号：US17672400

申请日：2022-02-15

Applicant: LitePoint Corporation

Inventor： Minh-Chau Huynh ,  Morten Damgaard ,  Christian Volf Olgaard

IPC: G01R29/08 ,  G01R29/10 ,  H04B17/10

CPC classification number: G01R29/0878 ,  G01R29/10 ,  H04B17/102

Abstract: Systems and methods are provided for systems and methods for using pulsed radio frequency (RF) signals to stimulate one or more modulated scattering probes (MSPs) to enable measurements of distance to and planarity of a surface of a wireless device under test (DUT).

公开(公告)号：US10659175B2

公开(公告)日：2020-05-19

申请号：US16036522

申请日：2018-07-16

Applicant: LitePoint Corporation

Inventor： Minh-Chau Huynh ,  Morten Damgaard

IPC: H04B17/00 ,  H04B17/10 ,  G01R29/10 ,  H04B17/391 ,  H04B17/17 ,  H01Q3/26

Abstract: Systems and methods for detecting faulty elements in an active planar antenna array of an extremely high frequency (EHF) wireless communication device. A planar antenna array having a matrix of dual-polarization modulated scattering probes is disposed within a near-field region of the antenna under test (AUT). Electromagnetic energy received from the AUT is converted to a complex electrical signal that is modulated by an electrical modulation signal and radiated as a scattering signal. The resulting electromagnetic scattering signal, received and converted to an electrical signal by another antenna, is used in a holographic image reconstruction operation via a backward-propagation transformation to reconstruct the signal spectrum radiated from the surface of the AUT. A comparison of this reconstructed signal spectrum with a reference signal spectrum radiated from the surface of a known good antenna array enables detection of faulty antenna elements within the AUT.

公开(公告)号：US20200021370A1

公开(公告)日：2020-01-16

申请号：US16036522

申请日：2018-07-16

Applicant: LitePoint Corporation

Inventor： Minh-Chau Huynh ,  Morten Damgaard

IPC: H04B17/10 ,  G01R29/10 ,  H01Q3/26 ,  H04B17/17 ,  H04B17/391

Abstract: Systems and methods for detecting faulty elements in an active planar antenna array of an extremely high frequency (EHF) wireless communication device. A planar antenna array having a matrix of dual-polarization modulated scattering probes is disposed within a near-field region of the antenna under test (AUT). Electromagnetic energy received from the AUT is converted to a complex electrical signal that is modulated by an electrical modulation signal and radiated as a scattering signal. The resulting electromagnetic scattering signal, received and converted to an electrical signal by another antenna, is used in a holographic image reconstruction operation via a backward-propagation transformation to reconstruct the signal spectrum radiated from the surface of the AUT. A comparison of this reconstructed signal spectrum with a reference signal spectrum radiated from the surface of a known good antenna array enables detection of faulty antenna elements within the AUT.