Abstract: A metal mesh includes: first metal lines (11) and second metal lines (12) extending in crossed directions. The first metal lines (11) are arranged side by side in a first direction and extend in a second direction; the second metal lines (12) are arranged side by side in the first direction and extend in a third direction. Each first metal line (11) includes first sub-line segments sequentially connected together in the second direction, and each second metal line (12) includes second sub-line segments sequentially connected together in the third direction. Each first sub-line segment has a midpoint superposing with a midpoint of one of the second sub-line segments, the first and second sub-line segments having superposed midpoints form a crossed structure (10), and define two opposite first angles (?1) and two opposite second angles (?2). Each first angle (?1) is not greater than each second angle (?1).

Abstract: An antenna includes: a dielectric layer; a first electrode on the dielectric layer and having at least one first opening; at least one radiation structure on a side of the dielectric layer away from the first electrode, wherein an orthographic projection of each radiation structure on the dielectric layer is within an orthographic projection of one first opening on the dielectric layer; at least one first feeding line and at least one second feeding line, which are on the side of the dielectric layer away from the first electrode, wherein each radiation structure is electrically connected to one first feeding line and one second feeding line, taking a straight line in a length direction of the antenna and passing through a center of the first opening as a symmetry axis, the first feeding line and the second feeding line, connected to a same radiation structure, are symmetrical to each other.

Abstract: The present disclosure provides an interactive control apparatus and an interactive system. The interactive control apparatus includes: an antenna array configured to transmit a radar signal and receive a reflected echo signal; a data processing assembly configured to determine, according to the radar signal and the echo signal, a body action and a corresponding control instruction, and output the control instruction to a terminal device; and a display assembly configured to display the determined body action and/or control instruction.

Abstract: An antenna structure includes a substrate, a ground layer, a radiation patch, a first feed structure, and a second feed structure. The radiation patch, the first feed structure, and the second feed structure are located on a first surface of the substrate, and the ground layer is located on a second surface of the substrate. The first surface and the second surface are two surfaces of the substrate facing away from each other. The radiation patch has a slotted structure. In a first direction, the first feed structure and the second feed structure are symmetrically located on both sides of the radiation patch.

Abstract: Provided is an antenna unit, including a first substrate and a second substrate that are oppositely disposed, a liquid crystal layer located between the first substrate and the second substrate, and a third substrate located on a side of the second substrate away from the liquid crystal layer. The first substrate includes a first base substrate and a radiation unit layer. The second substrate includes a second base substrate and a ground layer. The radiation unit layer and the ground layer face the liquid crystal layer. The third substrate includes a third base substrate and a feed structure layer, wherein the feed structure layer is located on a side of the third base substrate away from the second substrate.

Abstract: The present disclosure provides an antenna and a manufacturing method thereof, and belongs to the field of communication technology. The antenna provided by an embodiment of the present disclosure includes: a first substrate and a second substrate opposite to each other, a dielectric layer provided therebetween, and a feed unit on a side of the second substrate away from the first substrate. The first substrate includes: a first base substrate; and a radiation unit on a side of the first base substrate close to the second substrate. The second substrate includes: a second base substrate; and a reference electrode layer on a side of the second base substrate away from the feed unit, the reference electrode layer has an opening, an orthographic projection of the opening on the second base substrate is at least partially overlapped with an orthographic projection of the radiation unit on the second base substrate.

Abstract: The present disclosure provides an antenna, a method for manufacturing an antenna and a communication system. The antenna includes: a dielectric layer; a first electrode having at least one first opening therein; at least one radiating structure on a side of the dielectric layer different from that with the first electrode thereon; an orthographic projection of the radiating structure on the dielectric layer is located in that of the first opening on the dielectric layer; each radiating structure includes a second electrode and a third electrode, orthographic projections of the second and third electrodes on the dielectric layer are located in that of the first opening on the dielectric layer, the orthographic projections of the second and third electrodes on the dielectric layer are not overlapped; at least one first feed line and at least one second feed line.

Abstract: A non-metallic cabling continuous oil pipe, relating to the technical field of oil mining in oil fields, is disclosed. Said oil pipe includes an inner liner tube, the inner liner tube which is used to form a passageway for medium transportation. An outer wall of the inner liner tube is provided with a cable embedded layer and a protection sleeve in sequence, the cable embedded layer including cables and a plurality of reinforcement belts. The reinforcement belts are used to resist torsional deformation and to bear an axial tension. The protection sleeve is used to prevent the cables from being worn.

Abstract: A non-metallic cabling continuous oil pipe, relating to the technical field of oil mining in oil fields, comprises: an inner liner tube, the inner liner tube being used to form a passageway for medium transportation; from inside to outside, an outer wall of the inner liner tube being provided with a cable embedded layer and a protection sleeve in sequence thereon, the cable embedded layer including cables and a plurality of reinforcement belts, the reinforcement belts being used to resist torsional deformation and to bear an axial tension; the protection sleeve being used to prevent the cables from being worn.