阅读说明：本技术 透镜、透镜天线、射频拉远单元及基站 (Lens, lens antenna, radio remote unit and base station ) 是由 罗昕 陈一 孔龙 于 2018-02-06 设计创作，主要内容包括：本申请提供了一种透镜、透镜天线、射频拉远单元RRU及基站。该透镜包括基材层和金属层；该基材层的至少一面是凹面或者凸面；该基材层的至少一面存在该金属层；该金属层包括金属部分和镂空部分,该金属部分或该镂空部分以图形阵列呈现；该图形阵列包括多个第一环形,该第一环形包括多个图形单元,多个该第一环形中尺寸较大的环形包围尺寸较小的环形；其中,相邻的两个该第一环形包括的多个该图形单元的尺寸、旋转角度,以及相邻的两个第一间隔中的至少一个不同,其中,该第一间隔为相邻的两个该第一环形之间的间隔。本申请提供的技术方案可以利用金属层使透射电磁波产生移相量,从而可以减少依靠改变基材层厚度产生移相量,减小基材层的厚度,进而减小透镜的厚度。(The application provides a lens, a lens antenna, a Radio Remote Unit (RRU) and a base station. The lens comprises a substrate layer and a metal layer; at least one surface of the substrate layer is a concave surface or a convex surface; the metal layer is arranged on at least one surface of the substrate layer; the metal layer comprises a metal part and a hollow part, and the metal part or the hollow part is presented in a graphic array; the graphic array comprises a plurality of first rings, each first ring comprises a plurality of graphic units, and the ring with the larger size in the plurality of first rings surrounds the ring with the smaller size; at least one of the size, the rotation angle, and two adjacent first intervals of the plurality of graphic units included in two adjacent first rings is different, wherein the first interval is an interval between two adjacent first rings. The application provides a technical scheme can utilize the metal level to make the transmission electromagnetic wave produce the phase displacement volume to can reduce to rely on changing substrate layer thickness and produce the phase displacement volume, reduce the thickness of substrate layer, and then reduce the thickness of lens.)

A lens, comprising a substrate layer and a metal layer;

at least one surface of the substrate layer is a concave surface or a convex surface;

the metal layer is arranged on at least one surface of the substrate layer;

the metal layer comprises a metal part and a hollow part, and the metal part or the hollow part is presented in a graphic array;

the graphic array comprises a plurality of first rings, each first ring comprises a plurality of graphic units, and the larger ring of the first rings surrounds the smaller ring; wherein the content of the first and second substances,

at least one of the size and the rotation angle of the graphic unit included in two adjacent first rings is different, and/or two adjacent first intervals are different, wherein the first interval is an interval between two adjacent first rings.

The lens of claim 1, wherein the same first ring includes pattern elements of the same size and rotation angle.

The lens of claim 1 or 2, wherein the first parameter gradually increases from a first value to a second value in a direction from an edge of the lens to a center of the lens;

wherein the first quantity comprises at least one of the following quantities: the first ring includes a size of the graphic element, a rotation angle of the graphic element, and the first interval.

The lens of claim 1 or 2, wherein the first parameter varies periodically in a direction from an edge of the lens to a center of the lens, the first parameter gradually increasing from a first value to a second value at each variation period;

wherein the first quantity comprises at least one of the following quantities: the first ring includes a size of the graphic element, a rotation angle of the graphic element, and the first interval.

The lens of any of claims 1-4, wherein the graphics array further comprises a plurality of second rings, the second rings comprising a plurality of graphics cells, a larger one of the plurality of second rings and the plurality of first rings surrounding a smaller one of the plurality of rings; wherein the content of the first and second substances,

the size and the rotation angle of the graphic unit included in the two adjacent second rings are the same, and the two adjacent second intervals are the same, wherein the second intervals are the intervals between the two adjacent second rings;

the thickness of the base material layer is kept unchanged at the positions corresponding to the areas where the plurality of first rings are located;

and at the positions corresponding to the areas where the plurality of second rings are located, the thickness of the substrate layer is gradually increased from the edge of the lens to the center of the lens.

The lens of claim 5, wherein the same said second ring comprises the same pattern elements having the same size and rotation angle.

The lens of claim 5 or 6, wherein a plurality of the second rings are farther from the lens center than each of the first rings;

gradually increasing a first parameter from a first value to a second value in a direction from an edge of the lens to a center of the lens, and the second parameter being the first value;

wherein the first quantity comprises at least one of the following quantities: the size of the graphic elements included in the first ring, the rotation angle of the graphic elements included in the first ring, and the first interval; the second parameter includes: the second ring includes dimensions of the plurality of graphic elements, the second ring includes angles of rotation of the plurality of graphic elements, and the second spacing.

The lens of claim 5 or 6, wherein a plurality of the second rings are closer to the lens center than each of the first rings;

the first parameter gradually increases from a first value to a second value in a direction from the edge of the lens to the center of the lens, and the second parameter is the second value;

wherein the first quantity comprises at least one of the following quantities: the size of the graphic elements included in the first ring, the rotation angle of the graphic elements included in the first ring, and the first interval; the second parameter includes: the second ring includes dimensions of the plurality of graphic elements, the second ring includes angles of rotation of the plurality of graphic elements, and the second spacing.

The lens of any of claims 1 to 8, wherein the graphic elements are a center-connected graphic or a ring-type graphic or a solid-type graphic.

The lens of claim 9, wherein the sum of the lengths of the arms connected to the central point in the central connection pattern is 0.5 to 2 times the wavelength of the transmitted electromagnetic wave;

the outer circumference of the annular pattern is 0.5-2 times of the wavelength of the transmission electromagnetic wave;

the circumference of the solid pattern is 0.5 to 2 times the wavelength of the transmitted electromagnetic wave.

The lens of claim 9 or 10, wherein the central connecting pattern comprises two long arms and four short arms;

the two long arms are connected in a cross manner, each end of each long arm is connected to the center of one short arm, the two long arms and the four short arms are located on the same plane, and the long arms are perpendicular to the connected short arms.

The lens of claim 11, wherein adjacent two of said first rings comprise a center-connected pattern having a different length of the shorter arm.

The lens of claim 9 or 10, wherein the ring-type pattern comprises an open resonant ring.

The lens of claim 9, 10 or 13, wherein adjacent two of the first rings comprise different outer perimeters of the ring-type patterns.

The lens of claim 9 or 10, wherein adjacent two of the first annular shapes include a different circumference of the solid-type figure.

The lens of any of claims 1 to 15, wherein the material of the substrate layer comprises a resin, glass, or ceramic.

The lens of any of claims 1-16, wherein the convex or concave surface of the substrate layer is a stepped surface.

A lens antenna, comprising:

a feed source for radiating electromagnetic waves;

a lens as claimed in any one of claims 1 to 17, the feed being provided in the focal plane of the lens.

A remote radio unit, RRU, comprising the lens antenna of claim 18.

A base station, comprising:

a base transceiver station in which the lens antenna of claim 18 is disposed;

and the base station controller is used for controlling the base transceiver station.