-
公开(公告)号：US20240361373A1
公开(公告)日：2024-10-31
申请号：US18766776
申请日：2024-07-09
发明人： Akira KAKITANI
IPC分类号： G01R29/08
CPC分类号： G01R29/0892
摘要： An expected-power-value estimation device is configured to in such a way as to include: a covariance matrix calculation unit that acquires a received signal vector of a reflected wave from a reception array antenna that receives the reflected wave from a target, and calculates a covariance matrix of the received signal vector; and an unnecessary vector value removal unit that removes a vector value present inside a convex hull of the array manifold vector from among a plurality of vector values that the array manifold vector of the reception array antenna can take. Furthermore, the expected-power-value estimation device includes an expected-power-value estimation unit that estimates an expected-power-value of the reflected wave using a vector value that is not removed by the unnecessary vector value removal unit among the plurality of vector values that the array manifold vector can take, and the covariance matrix calculated by the covariance matrix calculation unit.
-
2.发明公开公开(公告)号：US20240353460A1
公开(公告)日：2024-10-24
申请号：US18304254
申请日：2023-04-20
发明人： Bessem BACCOUCHE
CPC分类号： G01R29/0892 , G01R35/005
摘要： A method for inline calibration of multiple radio frequency signals fed to the same device under test is provided. Said method comprises the steps of supplying multiple radio frequency signals to the device under test and measuring at least one characteristic of the device under test based on said multiple radio frequency signals, monitoring at least phase and/or amplitude of each of the multiple radio frequency signals during the ongoing supplying to the device under test, producing, based on the monitoring, a monitoring signal indicating the relative phase and/or amplitude of the multiple radio frequency signals, and inline adjusting, based on the thus produced monitoring signal, the corresponding phase and/or the corresponding amplitude of one, more or all of the multiple radio frequency signals while they are supplied to the device under test.
-
公开(公告)号：US20240353458A1
公开(公告)日：2024-10-24
申请号：US18501739
申请日：2023-11-03
申请人： Anhui University
发明人： Guoda Xie , Guilin Hou , Jiale Liu , Wenjie Ding , Jinpeng Dai , Zhixiang Huang
CPC分类号： G01R29/0807 , G06F30/23 , G06F2111/10
摘要： A method for processing anisotropic magnetized plasma medium and a system thereof are provided. The method includes obtaining the Maxwell equation and the polarization current density equation based on the electromagnetic characteristics of anisotropic magnetized plasma; processing the Maxwell equation and the polarization current density equation to obtain the electric field intensity, the magnetic field intensity, and the polarization current density after processed; based on the electric field intensity, the magnetic field intensity, and the polarization current density after processed, numerical iterative equations for electric field intensity, magnetic field intensity, and polarization current density in anisotropic magnetized plasma medium are obtained; a numerical modeling simulation electromagnetic model is used to determine the electromagnetic characteristics of the electromagnetic model. The use of the present disclosure to simulate the propagation of electromagnetic waves in anisotropic magnetized plasma medium has higher numerical calculation accuracy.
-
公开(公告)号：US12117475B2
公开(公告)日：2024-10-15
申请号：US17424194
申请日：2020-01-21
CPC分类号： G01R29/14 , G01R15/241 , G01R29/0885
摘要： An electric field sensor includes a light source; an electro-optical crystal, a first separator, a first wavelength plate, first and second light receivers, a differential amplifier, and a controller. The electro-optical crystal has light from the light source incident thereon and receives an electric field generated by an object. The first separator separates light emitted from the electro-optical crystal into a P wave and an S wave. The first wavelength plate changes a phase of light at a pre-stage of the first separator. The first and second light receivers receive the P wave and S-wave light respectively, and convert the received light into first and second electrical signals, respectively. The differential amplifier generates a differential signal between the first and second electrical signals. The controller adjusts a wavelength of the light source such that an output value of a direct-current component of the differential amplifier is within a value range.
-
公开(公告)号：US12092676B2
公开(公告)日：2024-09-17
申请号：US17935840
申请日：2022-09-27
发明人： JinHyeok Song , DeokWoo Nam , YoungEun Seo
IPC分类号： G01R29/08
CPC分类号： G01R29/0878 , G01R29/0892
摘要： A semiconductor device is tested by disposing an antenna-in-package (AiP) module under a test antenna. A first signal is transmitted with a first antenna of the AiP module. The test antenna is moved to a power output peak of the first signal. A second signal is transmitted with a second antenna of the AiP module. The test antenna is moved along a first directional axis from the power output peak of the first signal to a power output peak of the second signal while a second directional axis of the test antenna is held static. The first antenna of the AiP module is tested while the test antenna is at the power output peak of the first signal. The second antenna of the AiP module is tested while the test antenna is at the power output peak of the second signal.
-
公开(公告)号：US20240302418A1
公开(公告)日：2024-09-12
申请号：US18181392
申请日：2023-03-09
发明人： Adam TANKIELUN
CPC分类号： G01R29/0864 , H01Q1/12
摘要： A mounting apparatus for a modular antenna is described, wherein the mounting apparatus is attachable to a plurality of different radiation apparatus or modules and/or to a plurality of different feeding apparatus or modules. The mounting apparatus has a surface facing a measurement direction, wherein the surface is configured such that a surface parameter of the mounting apparatus is smaller than a predefined threshold, wherein the surface parameter is associated with a ratio of a first projected area and a second projected area. The first projected area corresponds to an area confined by the surface of the mounting apparatus facing the measurement direction and projected onto a plane being perpendicular to the measurement direction. The second projected area corresponds to an aperture of the modular antenna projected onto the plane being perpendicular to the measurement direction. Further, a modular antenna and an over-the-air measurement system are described.
-
公开(公告)号：US12085596B1
公开(公告)日：2024-09-10
申请号：US18450215
申请日：2023-08-15
申请人： CAES Systems LLC
CPC分类号： G01R29/0871 , H04N7/183
摘要： Systems, devices, and associated methods are provided for testing and tuning devices under test (e.g., radiofrequency modules). An example system includes a test station including an imaging device, a measurement device, and a robotic arm. The system may include a rotary stage coupled with the robotic arm, measurement probes disposed in the rotary stage and operably coupled with the measurement device, and tuning tips disposed in the rotary stage. The system may include a galvo scanner and laser to remove conductive material. The test station may perform a testing procedure on an RF module where the measurement probes generate testing data indicative of testing parameters. The test station may perform a tuning procedure on the RF module where a tuning tip or the laser modifies the RF module based on the testing parameters. The testing and tuning may be performed by a user, semi-autonomously, or autonomously.
-
公开(公告)号：US12061221B2
公开(公告)日：2024-08-13
申请号：US17778044
申请日：2020-11-26
申请人： FNV IP B.V.
CPC分类号： G01R29/0878 , G01N17/02 , G01R29/0807 , B63B17/00
摘要： An electric field gradient sensor is presented, having a sensor body having an outer surface; and a plurality of electrodes distributed over the outer surface, each electrode having an electrode surface facing outward from the surface. The plurality of electrodes are arranged forming a plurality of electrode pairs, each electrode pair formed by a first electrode and a second electrode located on opposite sides of the sensor body. This sensor enables three-dimensional measurements of the electric field gradient along structures located in an electrically conductive medium, such as subsea structures, for example for monitoring the cathodic protection of such structure.
-
公开(公告)号：US12050240B2
公开(公告)日：2024-07-30
申请号：US17284342
申请日：2019-10-10
申请人： Perisens GmbH
发明人： Florian Pfeiffer
CPC分类号： G01R29/0871 , G01R27/2623 , G01S7/03 , G01S7/4004 , H01Q1/42
摘要： A radome measuring system configured to perform a radome measurement may include at least one transmission antenna configured for emitting electromagnetic waves, at least one receiving antenna configured for receiving electromagnetic waves, and a measuring device configured to measure at least one difference between the transmitted and received electromagnetic waves for inferring a feature of a radome positioned between the at least one transmission antenna and the at least one receiving antenna. The radome measuring system may be used to measure the effects of a radome on electromagnetic waves traversing through the radome.
-
公开(公告)号：US12050239B2
公开(公告)日：2024-07-30
申请号：US17736795
申请日：2022-05-04
申请人： Kymeta Corporation
发明人： Cagdas Varel , Steven H. Linn , Seyed Mohamad Amin Momeni Hasan Abadi , Hussein Esfahlani , Mohsen Sazegar , Ryan Stevenson
CPC分类号： G01R29/0814 , H04B17/11 , H04B17/21
摘要： Processes and apparatuses for antenna frequency matching are disclosed. In one embodiment, a calibration process for an antenna having radio-frequency (RF) radiating antenna elements comprises: determining resonance frequencies of RF radiating antenna elements in a group of RF radiating antenna elements; selecting voltages to apply to the RF radiating antenna elements to cause resonance frequencies to match between the RF radiating antenna elements in the group of RF radiating antenna elements when the voltages are applied; and storing, in memory of the antenna, voltage information indicative of the voltages for driving the RF radiating antenna elements in the group.
-
-
-
-
-
-
-
-
-
搜索结果
2577 条记录 (耗时 0.037 秒)
