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1.发明申请公开(公告)号：US20180248262A1
公开(公告)日：2018-08-30
申请号：US15753952
申请日：2016-09-30
Applicant: THALES
Inventor： Philippe FREYSSINIER , Frédéric LECLERC , Alain ADAMJEE , Christian RENARD , Pierre LEVY
Abstract: An electronic-scanning antenna composed of radiating elements each forming an active channel in which the signals arising from the channels are grouped together to form deviometry signals, each deviometry signal forming a deviometry channel, and are grouped together according to sectors to form a sector-based signal forming a sector channel, a computation-based beam being formed on the basis of the signals arising from each of the sectors, the method comprises the following steps: measuring the response to a calibration signal of each active channel at one and the same time on the sum deviometry channel and on the sector channel to which it belongs, the responses on the sum channel to obtain the calibration of the sum channel; computing, for each active channel, the disparity between the mean of the responses measured on the sum channel and the mean of the responses measured on the sector to which it belongs; in the operational phase, forming the beam by computation on the basis of the measurements of the signals arising from the sector channels calibrated with the calibration obtained for the sum channel, and correcting the computation of the beam as a function of the disparity.
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公开(公告)号：US20150380829A1
公开(公告)日：2015-12-31
申请号：US14769510
申请日：2014-02-10
Applicant: THALES
Inventor： Mane-Si Laure LEE-BOUHOURS , Antoine BRUS , Brigitte LOISEAUX , Thierry DOUSSET , Christian RENARD
Abstract: A configurable deflection system for an incident microwave frequency beam exhibiting a wavelength contained in a band of wavelengths corresponding to the microwave frequencies, comprising: a first and a second diffractive dielectric component suitable for each performing a rotation about a rotation axis Z, the deflection system being suitable for generating a microwave frequency beam by diffraction of the incident microwave frequency beam on the first and second components, the microwave frequency beam being oriented according to an angle that is a function of the angular positioning between the first and said second diffractive components, the first and second components respectively exhibiting a first and second periodic structure of first and second periods according to a first and second axis, the first and second structures respectively comprising a plurality of first and second primary microstructures formed respectively on a first and second substrate of first and second substrate refractive indices.
Abstract translation: 一种用于入射的微波频率波束的可配置的偏转系统，其显示包含在与微波频率对应的波长的波段中的波长，包括：第一和第二衍射介电部件，适于各自绕旋转轴线Z执行旋转，偏转系统 适用于通过入射的微波频率波束在第一和第二分量上的衍射来产生微波频率波束，微波频率波束根据作为第一和第二衍射分量之间的角定位的函数的角度定向， 所述第一和第二部件分别表现出根据第一和第二轴线的第一和第二周期的第一和第二周期性结构，所述第一和第二结构分别包括多个第一和第二主要微结构，分别形成在第一和第二基底的第一和第二基底上， 第一和第二个基质 折射率。
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Patent Agency Ranking
3.发明公开公开(公告)号：US20240243483A1
公开(公告)日：2024-07-18
申请号：US18406127
申请日：2024-01-06
Applicant: THALES
Inventor： Stéphane MALLEGOL , Christian RENARD
Abstract: An antenna system includes an antenna and a passive device for angular deflection of a main radiation lobe of the antenna, characterized in that the device consists of a lens, said lens having a constant thickness and having a progressive relative permittivity between an inner edge of the lens located on the side of the geometric center of the antenna and an outer edge of the lens located on the side of a periphery of the antenna, the profile of the relative permittivity as a function of distance to the geometrical center of the antenna being adapted such that the lens deflects the main radiation lobe of the antenna by a predefined deflection angle over at least a portion of an operating frequency band of the antenna.
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公开(公告)号：US20220085515A1
公开(公告)日：2022-03-17
申请号：US17418237
申请日：2019-12-18
Applicant: THALES
Inventor： Adrien GLISE , Isabelle LE ROY-NANEIX , Stefan VARAULT , Grégoire PILLET , Christian RENARD
Abstract: An array antenna (A) in a medium (M) comprises a plurality of radiating elements (ERT) ensuring the transition between the antenna and the medium, the reflectivity of each element depending on a parameter, the reflectivity of a first element being close to that of the medium, the reflectivity of a last element being close to that of the antenna, the reflectivity parameter of the elements varying from one element to the next. A method comprises calculation of a path equal to the sum of the variations of the reflectivity from one element to the next element, optimization of the variation of the reflectivity parameter so that equivalent radar cross-section of the antenna is the lowest possible or the antenna best observes the radiation objectives, determination of the different elements as a function of said parameter, and simulation of the overall reflectivity and/or of the radiation of the antenna.
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公开(公告)号：US20230198151A1
公开(公告)日：2023-06-22
申请号：US18081545
申请日：2022-12-14
Applicant: THALES
Inventor： Christian RENARD , Aurélien AYISSI MANGA , Jean-François FOURMONT , Joël HERAULT
CPC classification number: H01Q9/0414 , H01Q1/38 , H01Q1/50
Abstract: An elementary microstrip antenna includes a stack of layers, stacked in a direction z, the stack comprising: a first conductive radiating element of disc shape having a first centre, an axis in the direction z and passing through the first centre being called the central axis; a coupling assembly configured to couple an exciting device and the first radiating element, the coupling assembly comprising: a first slot comprising a centre called the slot centre located on the central axis; a second slot comprising a centre coincident with the slot centre, and substantially perpendicular to the first slot, the first and second slots each comprising circularly arcuate ends on the same circle centred on the slot centre; the slots and the stacked layers being configured so that a transverse footprint of the elementary antenna is disc-shaped.
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公开(公告)号：US20200059002A1
公开(公告)日：2020-02-20
申请号：US16496224
申请日：2018-03-22
Applicant: THALES
Inventor： Christian RENARD , Eric VINAY , Eric ESTEBE
Abstract: The invention relates to an electromagnetic antenna having a first electromagnetic waveguide radiating part of predetermined geometric shape, forming a first electromagnetic propagation medium and having, a first radiation wall having a plurality of spaced-apart radiating slots, each radiating slot extending in a first longitudinal direction, and a second wall, opposite the first wall. The antenna has a second active part comprising a stack of at least two dielectric layers, at least one of the dielectric layers being etched with at least one metal track, resulting in at least one active circuit, forming a second electromagnetic propagation medium, at least one portion of said second active part being pressed against said second wall in a contact area. A coupling slot is situated in said contact area, the coupling slot passing through said second wall and extending in a second direction forming a nonzero angle of orientation with said first longitudinal direction.
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公开(公告)号：US20170371031A1
公开(公告)日：2017-12-28
申请号：US15539021
申请日：2015-12-22
Applicant: THALES
Inventor： Pascal CORNIC , Jean Paul ARTIS , Christian RENARD
Abstract: This method involves, for an array of at least two antennas pointing in different directions and the respective radiation patterns of which overlap one another, each antenna including at least two radiating elements so as to be able to work in a first operating mode associated with a first radiation pattern (Δ) and according to a second operating mode associated with a second radiation pattern (Σ): acquiring, for each antenna, a first signal (SΔi) corresponding to the first operating mode and a second signal (SΣi) corresponding to the second operating mode; determining, for each antenna, an opening half-angle (ρi) of a cone of possible directions of incidence from the amplitude of the first and second signals; calculating the bearing angle (⊖0) and/or the elevation angle (φ0) of the direction of incidence by intersection of the cones of possible directions of incidence determined for each antenna.
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