DUAL-POLARIZED BROADBAND MILLIMETER-WAVE FILTERING ANTENNA BASED ON META-SURFACE, AND COMMUNICATION DEVICE

    公开(公告)号:US20240243482A1

    公开(公告)日:2024-07-18

    申请号:US18562202

    申请日:2021-10-11

    CPC classification number: H01Q15/0086 H01Q1/50 H01Q13/10 H01Q21/064

    Abstract: Disclosed in the present disclosure are a dual-polarized broadband millimeter-wave filtering antenna based on a meta-surface, and a communication device. The dual-polarized broadband millimeter-wave filtering antenna based on a meta-surface comprises two layers of dielectric substrates, which are arranged in a stacked manner, wherein an upper surface and a lower surface of a lower-layer dielectric substrate are respectively provided with an upper-layer metal ground and a lower-layer metal ground, an upper surface of an upper-layer dielectric substrate is provided with a meta-surface structure, the meta-surface structure comprises N metal patches, which are arranged in an array, a slot is etched on each metal patch, the upper-layer dielectric substrate is connected to the upper-layer metal ground, and a Jerusalem cross slot is etched on the upper-layer metal ground. The antenna has a simple structure, and radiation and filtering can be realized at the same time without increasing the size of the antenna, thereby greatly reducing the volume of a radio-frequency front end and without any extra insertion loss.

    Scalable modular antenna arrangement

    公开(公告)号:US11978957B2

    公开(公告)日:2024-05-07

    申请号:US17796435

    申请日:2021-01-12

    Applicant: GAPWAVES AB

    Abstract: An antenna arrangement having a stacked layered structure. The antenna arrangement includes a radiation layer including one or more radiation elements, and a distribution layer facing the radiation layer. The distribution layer is arranged to distribute a radio frequency signal to the one or more radiation elements. The distribution layer includes at least one distribution layer feed and a first electromagnetic bandgap, EBG, structure arranged to form at least one first waveguide intermediate the distribution layer and the radiation layer. The first EBG structure is also arranged to prevent electromagnetic propagation in a frequency band of operation from propagating from the at least one first waveguide in directions other than through the at least one distribution layer feed and the one or more radiation elements. The distribution layer includes a plurality of distribution modules and a positioning structure, the positioning structure is arranged to fix the distribution modules in position.

    FREQUENCY SELECTIVE REFLECTOR AND REFLECTING STRUCTURE

    公开(公告)号:US20240145929A1

    公开(公告)日:2024-05-02

    申请号:US18548355

    申请日:2022-03-04

    CPC classification number: H01Q15/0013 H01Q15/14

    Abstract: A frequency selective reflector including a reflecting member reflecting the electromagnetic waves; and a dielectric layer that: is disposed at an incident side of the electromagnetic waves with respect to the reflecting member; includes a concave and convex structure in which a plurality of a unit structure including a thickness distribution of increasing thickness in a predetermined direction is arranged; and transmits the electromagnetic waves, wherein the unit structure of the dielectric layer includes a plurality of cell regions of which thickness differs from one another; the dielectric layer includes, as the unit structure, at least a first unit structure including three or more of the cell regions of which thickness differs from one another; and a reflection direction of the electromagnetic waves is controlled by controlling a relative reflection phase distribution of the electromagnetic waves by the thickness distribution of the dielectric layer.

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