METHOD FOR THE MANUFACTURE OF A SPATIALLY VARYING DIELECTRIC MATERIAL, ARTICLES MADE BY THE METHOD, AND USES THEREOF

    公开(公告)号:WO2020081954A3

    公开(公告)日:2020-04-23

    申请号:PCT/US2019/056971

    申请日:2019-10-18

    Abstract: A stereolithography method of manufacture of a polymer structure having a spatially gradient dielectric constant, including: providing a volume of a liquid, radiation-curable composition; irradiating a portion of the liquid, radiation-curable composition with activating radiation in a pattern to form a layer of the polymer structure; contacting the layer with the liquid, radiation-curable composition; irradiating the liquid, radiation-curable composition with activating radiation in a pattern to form a second layer on the first layer; and repeating the contacting and irradiating to form the polymer structure, wherein the polymer structure comprises a plurality of unit cells wherein each unit cell is integrally connected with an adjacent unit cell, each unit cell is defined by a plurality of trusses formed by the irradiation, wherein the trusses are integrally connected with each other at their respective ends, and the trusses of each unit cell are dimensioned to provide the spatially gradient dielectric constant.

    METHOD FOR THE MANUFACTURE OF A SPATIALLY VARYING DIELECTRIC MATERIAL, ARTICLES MADE BY THE METHOD, AND USES THEREOF

    公开(公告)号:WO2020081954A2

    公开(公告)日:2020-04-23

    申请号:PCT/US2019/056971

    申请日:2019-10-18

    Abstract: A stereolithography method of manufacture of a polymer structure having a spatially gradient dielectric constant, including: providing a volume of a liquid, radiation-curable composition; irradiating a portion of the liquid, radiation-curable composition with activating radiation in a pattern to form a layer of the polymer structure; contacting the layer with the liquid, radiation-curable composition; irradiating the liquid, radiation-curable composition with activating radiation in a pattern to form a second layer on the first layer; and repeating the contacting and irradiating to form the polymer structure, wherein the polymer structure comprises a plurality of unit cells wherein each unit cell is integrally connected with an adjacent unit cell, each unit cell is defined by a plurality of trusses formed by the irradiation, wherein the trusses are integrally connected with each other at their respective ends, and the trusses of each unit cell are dimensioned to provide the spatially gradient dielectric constant.

    OPEN WAVEGUIDE ANTENNA AND SYSTEM HAVING THE SAME

    公开(公告)号:WO2023043765A1

    公开(公告)日:2023-03-23

    申请号:PCT/US2022/043419

    申请日:2022-09-14

    Abstract: A waveguide antenna system, includes: an electromagnetic, EM, transition portion having a transition region having a signal feed interface and an open waveguide section, the EM transition portion configured to couple EM energy from the signal feed interface to a guided waveguide mode of EM energy to the open waveguide section via the transition region; and a leaky waveguide antenna portion configured and disposed to radiate electromagnetic energy received from the open waveguide section; wherein the EM transition portion is electromagnetically coupled to the leaky waveguide antenna portion, the EM transition portion being configured to support a transfer of electromagnetic energy from a signal feed structure to the leaky waveguide antenna portion.

    DIELECTRIC LENS AND ELECTROMAGNETIC DEVICE WITH SAME

    公开(公告)号:WO2021206977A1

    公开(公告)日:2021-10-14

    申请号:PCT/US2021/025064

    申请日:2021-03-31

    Abstract: A dielectric lens, includes: a three-dimensional, 3D, body of dielectric material having a spatially varying dielectric constant, Dk; the 3D body having at least three regions R(i) with local maxima of dielectric constant values Dk(i) relative to surrounding regions of respective ones of the at least three regions R(i), locations of the at least three regions R(i) being defined by local coordinates of: azimuth angle(i), zenith angle(i), and radial distance(i), relative to a particular common point of origin associated with the 3D body, where (i) is an index that ranges from 1 to at least 3; wherein the spatially varying Dk of the 3D body is configured to vary as a function of the zenith angle between a first region R(1) and a second region R(2) at a given azimuth angle and a given radial distance.

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