CN110739549A

CN110739549A - Array lens, lens antenna, and electronic apparatus

Info

Publication number: CN110739549A
Application number: CN201911038922.0A
Authority: CN
Inventors: 杨帆
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-01-31
Anticipated expiration: 2039-10-29
Also published as: CN110739549B

Abstract

The application relates to array lenses, a lens antenna and electronic equipment, the array lenses comprise an array lens medium layer and two layers of array structures which are respectively arranged on two opposite sides of the medium layer, wherein each array structure comprises a conductive body, the conductive body is provided with a plurality of hollow grooves which are arranged in a two-dimensional array, each hollow groove is internally provided with a conductive sheet and a split ring sheet which is arranged around the conductive sheet, and the conductive body, the conductive sheets and the split ring sheets are arranged separately from each other, wherein two hollow grooves which are positioned at the same opposite positions in the two layers of array structures are coaxially arranged, the opening directions of the split ring sheets in the two hollow grooves are opposite, the conductive sheets in the same array structures have gradually-changed conductive sheet sizes in the array direction, phase distribution of different frequency bands can be compensated, electromagnetic waves radiated by feed sources which deviate from a focus far away can be well converged, the reduction of gain of a partial focal beam is greatly reduced, and the scanning angle of the lens antenna is greatly improved.

Description

Array lens, lens antenna, and electronic apparatus

Technical Field

The present application relates to the field of antenna technology, and in particular, to kinds of array lenses, lens antennas, and electronic devices.

Background

kinds of lens antenna can convert spherical wave or cylindrical wave of point source or line source into plane wave by electromagnetic wave to obtain antenna of pen shape, fan shape or other shape wave beam, through designing surface shape and refractive index of lens properly, adjust phase speed of electromagnetic wave to obtain plane wave front on radiation aperture, lens antenna can not be well converged at feed source radiation far away from lens focus, so that scanning angle of lens antenna is limited, which is not good for covering large range.

Disclosure of Invention

The embodiment of the application provides kinds of array lens, lens antenna and electronic equipment, can reduce greatly and lean towards the falling amplitude of focus beam gain, improves the scanning angle of lens antenna, and coverage is big.

an array lens, comprising:

a dielectric layer;

the two layers of array structures are respectively arranged on two opposite sides of the dielectric layer; wherein the array structure comprises a conductive body, a plurality of hollow grooves arranged in a two-dimensional array are arranged on the conductive body, a conductive sheet and a split ring piece arranged around the conductive sheet are arranged in each hollow groove, the conductive body, the conductive sheet and the split ring piece are separated from each other,

the two hollow-out grooves which are positioned at opposite positions of in the two-layer array structure are coaxially arranged, the opening directions of the opening ring pieces in the two hollow-out grooves are opposite, and the conducting pieces in the plurality of hollow-out grooves in the same array structure have gradually changed conducting piece sizes in the array direction.

In addition, kinds of lens antennas are provided, which comprise a feed array, wherein the feed array comprises at least two feed units;

the array lens of any upper arranged in parallel with the feed source array.

In addition, electronic devices including the lens antenna are provided.

The array lens, the lens antenna and the electronic equipment comprise dielectric layers;

the array structure comprises a conductive body, wherein a plurality of hollowed grooves which are arranged in a two-dimensional array are formed in the conductive body, a conductive sheet and an open ring sheet which is arranged around the conductive sheet are arranged in each hollowed groove, the conductive body, the conductive sheet and the open ring sheet are arranged separately, two hollowed grooves which are opposite to in the two-layer array structure are coaxially arranged, the opening directions of the open ring sheets in the two hollowed grooves are opposite, the sizes of the conductive sheets in the plurality of hollowed grooves in the array structure are gradually changed in the array direction, phase distribution of different frequency bands can be compensated, electromagnetic waves radiated by a feed source which deviates from a far focus can be better converged, the reduction of gain of the focus-off beam is greatly reduced, the scanning angle of the lens antenna is greatly improved, and compared with a -like double-lens system, the lens has a low section, and is more beneficial to integration in electronic equipment such as a mobile phone.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of an electronic device of embodiments;

FIG. 2 is a schematic view of embodiments of an electronic device including a lens antenna;

FIG. 3 is a schematic structural diagram of an array lens in ;

FIG. 4 is a partial structural view of the array structure of example;

FIG. 5 is a schematic structural diagram of the array structure of example ;

FIG. 6 is a schematic structural diagram of array structure in example;

FIG. 7 is a schematic structural diagram of the array structure of example ;

FIG. 8 is a schematic structural diagram of the array structure of example ;

FIG. 9 is a schematic structural diagram of the array structure of example ;

FIG. 10a is a schematic view of a lens antenna in the embodiment;

FIG. 10b is a schematic view of the structure of the lens antenna in the embodiment;

FIG. 11 is a block diagram of an electronic device in an embodiment ;

fig. 12 shows example beam scanning patterns.

Detailed Description

For purposes of making the present application more readily apparent, the technical solutions and advantages thereof, reference is now made to the following detailed description taken in conjunction with the accompanying drawings and examples, it being understood that the specific examples described herein are for purposes of illustration only and are not intended to limit the application.

It will be understood that the terms "," "second," and the like, as used herein, may be used herein to describe various elements but these elements are not limited by these terms.

It should be noted that when an element is referred to as being "attached" to another elements, it may be directly on the other elements or intervening elements may also be present, and when elements are referred to as being "connected" to the other elements, it may be directly connected to the other elements or intervening elements may be present.

The antenna Device of the embodiment of the present application is applied to an electronic Device, and in embodiments, the electronic Device may be a communication module including a Mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Mobile Internet Device (MID), a wearable Device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), or other configurable array antenna devices.

As shown in fig. 1, in the embodiment of the present application, the electronic device 10 may include a housing assembly 110, a middle Board 120, a display screen assembly 130, and a controller, the display screen assembly 130 is fixed on the housing assembly 110, and forms an external structure of the electronic device together with the housing assembly 110 , the housing assembly 110 may include a middle frame 111 and a rear cover 113, the middle frame 111 may be a frame structure having a through hole, the middle frame 111 may be received in a receiving space formed by the display screen assembly and the rear cover 113, the rear cover 113 is used for forming an external profile of the electronic device, the rear cover 113 may be molded in , a rear camera hole, a fingerprint recognition module, an antenna device mounting hole, and the like may be formed in the rear cover 113 during the molding of the rear cover 113, wherein the rear cover 113 may be a non-metal rear cover 113, for example, the rear cover 113 may be a plastic rear cover 113, a ceramic rear cover 113, a 3D glass rear cover 113, and the like, a lens antenna for transceiving signals may be fixed inside the housing assembly 120, and the middle Board 120 may be a Printed Circuit Board (Printed Circuit Board) or a Flexible Printed Circuit Board (FPC) capable of providing a millimeter wave display screen or a display screen.

As shown in fig. 2, in the embodiment, the electronic device 10 includes at least two lens antennas T distributed on different sides of a middle frame of the electronic device, where the middle frame includes a side 101 and a third side 103 disposed opposite to each other, and a second side 102 and a fourth side 104 disposed opposite to each other, the second side 102 is connected to ends of the side 101 and the third side 103, and the fourth side 104 is connected to other ends of the side 101 and the third side 103, and at least two of the side, the second side, the third side, and the fourth side are respectively provided with a millimeter wave module.

In the embodiment, two lens antennas are respectively arranged on two long sides of the mobile phone, that is, the two long sides of the mobile phone can be covered, thereby realizing millimeter wave high efficiency, high gain and low cost beam scanning of a 5G mobile phone, wherein millimeter waves refer to electromagnetic waves with the wavelength of millimeter magnitude, the Frequency of the electromagnetic waves is about 20 GHz-300 GHz, 3GP specifies a Frequency band list supported by 5G NR, the Frequency range of 5G NR can reach 100GHz, and specifies two Frequency ranges, namely Frequency range 1(FR1), namely Frequency bands below 6GHz, and Frequency range 2(FR2), namely a millimeter wave Frequency band, the Frequency range of Frequency range 1 is 450MHz-6.0GHz, wherein the Frequency range of the maximum channel bandwidth 100 MHz.frequency range 2 is 24.25GHz-52.6GHz, the maximum channel bandwidth 400MHz, the near 11GHz Frequency spectrum used for the 5G mobile broadband comprises 3.85GHz Frequency spectrum licenses, for example, 28GHz (24.25-29.5GHz), 37.0 GHz), 6GHz (39-38 GHz), and 60GHz (60-60 GHz) working Frequency bands of the communication systems.

In the embodiment, when the number of the lens antennas is 4, 4 lens antennas are respectively located on the side 101, the second side 102, the third side 103 and the fourth side 104. when the user holds the electronic device 10, there may be a case where the lens antennas are blocked to cause signal difference, at least two lens antennas are located on different sides, and when the user holds the electronic device 10 in a horizontal or vertical manner, there are lens antennas that are not blocked, so that the electronic device 10 can normally transmit and receive signals.

As shown in fig. 3, in the embodiment, the array lens includes two layers of array structures 210 and a dielectric layer 220 located between the two layers of array structures 210, it can also be understood that the two layers of array structures 210 are respectively disposed on opposite sides of the dielectric layer 220, and the two layers of array structures 210 may be denoted as array structure P1 and second array structure P2.

Each -layer array structure 210 includes a conductive body 211, the conductive body 211 is provided with a plurality of hollow grooves 212 arranged in an array, each hollow groove 212 is internally provided with a conductive sheet 213 and an open ring 214 arranged around the conductive sheet 213, the conductive body 211, the conductive sheet 213 and the open ring 214 are arranged separately from each other, specifically, the hollow groove 212 penetrates through the array structure 210, that is, the hollow groove 212 can understand a through hole arranged in the conductive body 211, wherein the conductive sheet 213 and the open ring 214 are both attached to the dielectric layer 220.

In embodiments, the centers of the hollow-out groove 212, the conductive sheet 213 and the open ring sheet 214 are all coincidently arranged, wherein the center of the hollow-out groove 212 can be understood as the centroid of the hollow-out groove 212, the center of the conductive sheet 213 can be understood as the centroid of the geometric shape of the open ring sheet 214, and the center of the open ring sheet 214 can be understood as the centroid of the open ring sheet 214.

In embodiments, the hollow-out groove 212 may be a circular hollow-out groove, or may be any polygonal hollow-out groove, such as a square hollow-out groove.

In of these embodiments, the conductive sheet 213 may be a rectangular conductive sheet (including square) or an oval conductive sheet (including circular).

In embodiments, the open ring 214 may be a circular open ring, or may be a polygonal open ring, such as a hexagonal, octagonal, dodecagonal, or other polygonal ring

In the embodiment of the present application, the specific shapes of the hollowed-out groove 212, the conductive sheet 213, and the open ring sheet 214 are not limited to , and may be any combination of the shapes .

The conductive body 211, the conductive sheet 213 and the open ring plate 214 may be made of the same or different materials in embodiments, wherein the materials of the conductive body 211, the conductive sheet 213 and the open ring plate 214 may be conductive materials, such as metal materials, alloy materials, conductive silicone materials, graphite materials, etc., or materials with high dielectric constant, such as glass, plastic, ceramic, etc. with high dielectric constant.

The dielectric layer 220 is a non-metal functional layer capable of supporting and fixing the array structure 210, and the dielectric layer 220 and the array structure 210 are alternately stacked, so that the two layers of array structures 210 can be distributed at intervals, and simultaneously, the dielectric layer 220 and the array structure 210 can jointly form a phase delay unit.

For example, the dielectric layer 220 may be made of PET (polyethylene terephthalate), ARM composite material, which is composed of silica gel, PET, and other specially processed materials, and optionally, each dielectric layer 220 has the same material, for example, thickness, material, and the like.

In embodiments, the plurality of hollowed-out grooves 212 of the same layer array structure 210 may be arranged in a two-dimensional array, where the array direction of the two-dimensional array may include a row direction and a column direction, if the plane of the array structure 210 is a plane formed by an X-axis and a Y-axis, the X-axis direction is the row direction, and the Y-axis direction is the column direction, accordingly, the plurality of conductive sheets 213 of the same layer array structure 210 is also arranged in a two-dimensional array, the plurality of open ring sheets 214 of the same layer array structure 210 is also arranged in a two-dimensional array, and the opening directions of the plurality of open ring sheets 214 of the layer array structure 210 are the same, where the hollowed-out

grooves

212, 213, and the open ring sheets 214 in the first array structure P1 and the second array structure P2 may be represented by coordinates P (X, Y), and in particular, the coordinates P (X, Y) are used to represent the central positions of the hollowed-out grooves 212, the conductive sheets 213, and the open ring sheets 214.

The two hollowed-out grooves 212 in the two-layer array structure 210, which are located at opposite positions to , are coaxially arranged, that is, the two open ring pieces 214 in the -th array structure P1 and the second array structure P2, which are located at opposite positions to , are located on the same axis.

In the two-layer array structure 210, the opening direction of the open ring pieces 214 in the two through holes 212 in the same -layer array structure 210 is the same, and the opening directions of the open ring pieces 214 in the two coaxially arranged hollow grooves 212 are opposite, that is, the opening directions of the split rings in the -th array structure and the second array structure are opposite (anti-symmetric).

Similarly, the conductive strips 213 in the plurality of hollow-out slots 212 in the array structure 210 have conductive strip dimensions that gradually change in the array direction, wherein the conductive strip dimensions include the dimension of the conductive strips 213 in the array direction.

In the above array lens, two hollow grooves 212 located at the same relative position in the two-layer array structure 210 are coaxially arranged, the opening directions of the open ring pieces 214 in the two hollow grooves 212 are opposite, and the conductive pieces 213 in the plurality of hollow grooves 212 in the array structure 210 have gradually changed conductive piece sizes in the array direction, when electromagnetic waves are incident to the array lens, the array lens can compensate for phase distribution of different frequency bands, so that the electromagnetic waves radiated by the feed source far away from the focus can be better converged, the focal plane of the array lens can be kept unchanged in a wider frequency range, the amplitude of gain reduction of the focused beam is greatly reduced, the scanning angle of the lens antenna is greatly improved, compared with a double-lens system like , the lens has a low profile, and is more beneficial to integration in electronic devices such as mobile phones.

In embodiments, as shown in fig. 5, at least two of the patterned apertures 212 in each layers of the array structure 210 are in a two-dimensional array, for example, may be in a two-dimensional array of N × M (5 × 5), that is, the patterned apertures 212 include N rows and M columns (5 rows and 5 columns), wherein each patterned aperture 212 has a conductive plate 213 and a split ring plate 214 disposed therein, that is, at least two of the conductive plates 213 in each layers of the array structure 210 are also in a two-dimensional array.

In the present embodiment, the hollow groove 212 is a circular hollow groove, the conductive sheet 213 is a rectangular conductive sheet, and the open ring piece 214 is a circular open ring piece.

the conductive strips 213 in the plurality of slots 212 in the array structure 210 have a gradually changing conductive strip size in the row direction.

Specifically, the conductive sheet size of the conductive sheets 213 in the plurality of hollowed-out slots 212 in the array structure 210 of in the row direction decreases symmetrically from the center line s1 of the two-dimensional array to the array edge, and the conductive sheet size in the column direction does not change, it is understood that the conductive sheet size of at least two conductive sheets 213 in each row in the same array structure 210 decreases symmetrically from the center line s1 of the two-dimensional array to the array edge, and the conductive sheet size of at least two conductive sheets 213 in each column does not change, wherein the conductive sheet size is the length size l, for example, the length sizes l of the th column to the fifth column in the same row are l, respectively₁、l₂、l₃、l₄、l₅Wherein l₁＝l₅<l₂＝l₄<l₃。

It should be noted that the direction of the th central line s1 in the two-dimensional array is the same as the column direction, and the direction of the second central line s2 is the same as the row direction, wherein, the plurality of hollow-out grooves 212 in each -layer array structure 210 are symmetrically arranged about the th central line s1, and are symmetrically arranged about the second central line s 2.

Alternatively, as shown in fig. 6, the conductive sheet size includes a length dimension l and a width dimension w, for example, the length dimensions l of the third th column to the fifth column of the third row are l, respectively₃₁、l₃₂、l₃₃、l₃₄、l₃₅Wherein l₃₁＝l₃₅<l₃₂＝l₃₄<l₃₃The width dimensions w of the th column to the fifth column of the third row are w₃₁、w₃₂、w₃₃、w₃₄、w₃₅Wherein w₃₁＝w₃₅<w₃₂＝w₃₄<w₃₃。

In embodiments, the hollow-out grooves 212 in the array structure 210 are all arranged independently of each other, and the distance between the centers of two adjacent hollow-out grooves 212 in the array direction is equal, specifically, the distance p1 between the centers of of two adjacent hollow-out grooves 212 in the row direction is equal, and the distance p2 between the centers of two adjacent hollow-out grooves 212 in the column direction is equal, wherein the distance p1 between the centers of and the distance p2 between the centers are equal.

In the embodiment of the present application, the operating frequency band of the array lens may be adjusted by selecting a suitable center distance p1 from , a suitable second center distance p2, an opening direction of the opening ring plate 214, and a suitable size of the conducting plate, for example, by designing a suitable size, the operating frequency band of the array lens may be maintained at a 5G millimeter wave frequency band, and the like.

In the array structure 210 described in , the conductive sheet 213 in the plurality of hollowed-out grooves 212 has a gradually changing conductive sheet size in the row direction, and the opening directions of the coaxially arranged open ring sheets 214 are opposite, which will generate -determined phase shift, wherein, in the transverse direction (i.e., the row direction), the amount of phase shift realized per longitudinal column (i.e., the column direction) satisfies Φ (x) ═ π x²And/λ f, where X is a distance between the center of the open loop piece 214 and the center line s1, λ is a design frequency point (i.e., a transmission frequency of electromagnetic waves transmitted by the feed array), and f is a distance between the array lens and the feed array (i.e., a focal length of the array lens).

In embodiments, the conductive strips 213 in the plurality of open-out slots 212 in the array structure 210 of have gradually varied conductive strip sizes in the row direction, and the conductive strips 213 in the plurality of open-out slots 212 in the array structure 210 of have gradually varied conductive strip sizes in the column direction, as shown in fig. 7.

Specifically, the conductive sheet size of the conductive sheets 213 in the plurality of hollowed-out slots 212 in the array structure 210 of the same in the row direction decreases symmetrically from the th center line s1 of the two-dimensional array to the array edge, and the conductive sheet size in the column direction decreases symmetrically from the second center line of the two-dimensional array to the array edge₃₁、l₃₂、l₃₃、l₃₄、l₃₅Wherein l₃₁＝l₃₅<l₃₂＝l₃₄<l₃₃The length l of the th row to the fifth row of the third row is l₁₃、l₂₃、l₃₃、l₄₃、l₅₃Wherein l₁₃＝l₅₃<l₂₃＝l₄₃<l₃₃。

Optionally, the conductive sheet dimensions may also include a width dimension w, e.g., the width dimensions w of the third row, th column through the fifth column, are w, respectively₃₁、w₃₂、w₃₃、w₃₄、w₃₅Wherein w₃₁＝w₃₅<w₃₂＝w₃₄<w₃₃The length l of the third th row to the fifth row is w₁₃、w₂₃、w₃₃、w₄₃、w₅₃Wherein w₁₃＝w₅₃<w₂₃＝w₄₃<w₃₃。

When the array lens is applied to a lens antenna including a feed array, two layers of the array structure 210 and the dielectric layer 220 in the array lens constitute a phase delay unit, in the array structure 210 as described in , the conductive sheet 2 in the plurality of hollowed-out grooves 21213 have a gradual conductive sheet size in the row direction and coaxially arranged apertured ring sheets 214 with opposing aperture directions produce a -specified phase shift, wherein the amount of phase shift achieved in the transverse (i.e., row) direction per columns (i.e., column) is such that Φ (x) ═ π x²Where x is the distance between the center of the open-loop plate 214 and the th centerline s1, λ is the design frequency point (i.e., the emission frequency of the electromagnetic wave emitted by the feed array), and f is the distance between the array lens and the feed array (i.e., the focal length of the array lens)²And/λ f. Wherein x is the distance between the center of the open ring piece 214 and the second center line s2, λ is the design frequency point (i.e. the emission frequency of the electromagnetic wave emitted by the feed array), and f is the distance between the array lens and the feed array (i.e. the focal length of the array lens)

The phase shift distribution can realize the translational symmetry of the phase shift amount of the array lens about the central line s1 and the second central line s2, so that electromagnetic waves radiated by the feed source units which are far away from the focus can be better converged in the row direction (X-axis direction) and the column direction (Y-axis direction) of the array lens, the amplitude reduction of the gain of a defocused beam is reduced, and the scanning angle of the lens antenna is improved.

As shown in fig. 8, in embodiments, the conductive sheets 213 in the plurality of hollow-out grooves 212 in the array structure 210 have gradually varied conductive sheet sizes in the array direction, and the open ring sheets 214 in the plurality of hollow-out grooves 212 in the array structure 210 have gradually varied opening angles in the array direction, and the opening directions of the open ring sheets 214 are the same as .

It should be noted that, during the gradual change of the opening angle, the two end points A, B at the opening of the opening ring piece 214 move in opposite directions along the arc of the opening ring piece 214 at the same time (as shown by the arrow in fig. 3), and the moving amount is the same.

Specifically, the opening angle of each rows of the ring-shaped opening sheets 214 symmetrically increases from the center line s1 of the two-dimensional array to the edge of the array, and at least two openings in the same columnThe open ring sheets 214 have the same open angle, for example, the open ring sheets 214 in the array structure 210 are in a two-dimensional array of 5 × 5 (five rows and five columns), wherein the open angle of each open ring sheet 214 in the third row -the fifth column is θ₃₁、θ₃₂、θ₃₃、θ₃₄、θ₃₅Wherein theta₃₁＝θ₃₅>θ₃₂＝θ₃₄>θ₃₃。

Optionally, the opening angle of each rows of open ring tabs 214 increases symmetrically from the center line s1 of the two-dimensional array to the edge of the array, and the opening angle of each columns of open ring tabs 214 increases symmetrically from the second center line of the two-dimensional array to the edge of the array, as an example, the open ring tabs 214 in the array structure 210 are in a 5 x 5 (five rows and five columns) two-dimensional array, wherein the opening angle of each open ring tab 214 in the third row from the th column to the fifth column is θ₃₁、θ₃₂、θ₃₃、θ₃₄、θ₃₅Wherein theta₃₁＝θ₃₅>θ₃₂＝θ₃₄>θ₃₃The opening angle of each opening ring plate 214 in the third th to fifth rows of the third row is θ₁₃、θ₂₃、θ₃₃、θ₄₃、θ₅₃Wherein theta₁₃＝θ₅₃>θ₂₃＝θ₄₃>θ₃₃。

In embodiments, the opening angle of each open ring piece 214 in the array structure 210 is less than or equal to 180 degrees as in .

It should be noted that the difference (δ 1, δ 2, δ 3) between the opening angles of two adjacent openings may be equal (e.g. 15 °, 30 °, etc.), may be an arithmetic series, an geometric series, or a random number, and in the embodiment of the present application, the step is not limited.

In other embodiments, the embodiments with the gradually-changed opening angle and the embodiments with the gradually-changed conductive sheet size may be arbitrarily combined, and details are not repeated at .

In embodiments, as shown in fig. 4 and fig. 9, the conductive sheets 213 in the plurality of hollow-out slots 212 in the array structure 210 have gradually changed conductive sheet sizes in the array direction, and the open ring sheets 214 in the plurality of hollow-out slots 212 in the array structure 210 in the same manner as have gradually changed ring width sizes in the array direction.

For example, the loop width dimension r of the open loop piece 214 in the plurality of open slots 212 in the array structure 210 at decreases symmetrically in the row direction from the center line s1 of the two-dimensional array to the array edge, or the loop width dimension r of the open loop piece 214 in the plurality of open slots 212 in the array structure 210 at decreases symmetrically in the column direction from the second center line s2 of the two-dimensional array to the array edge.

In the array lens in this embodiment, the conductive sheet 213 in the plurality of hollow-out grooves 212 in the same array structure 210 has a gradually changing conductive sheet size in the array direction, and the open loop sheet 214 has a gradually changing loop width size in the array direction, so that when the array lens is applied to a lens antenna, phase distribution of different frequency bands can be compensated in steps, and bandwidth of the lens antenna and a scanning angle of the lens antenna can be further improved in steps.

The present embodiment also provides lens antennas, as shown in fig. 10a, the lens antenna includes any array lens 20 in the above embodiments, and a feed array 30 disposed parallel to the array lens 20.

In the embodiment, the feed array 30 includes at least two feed units 310, when different feed units 310 in the feed array 30 are fed, an electromagnetic wave is incident to the lens array lens 20, and the lens antenna radiates high-gain beams with different directions, that is, different beam directions can be obtained, thereby realizing beam scanning.

Further , the feed array 30 may be a centrosymmetric structure, and the center of the feed array 30 may be placed at the focal point of the lens array lens 20.

As shown in fig. 10b, in the embodiment, the lens antenna further includes a th isolation plate 410 and a second isolation plate 420 arranged in parallel, and the feed array 30 and the array lens 20 are arranged between the th isolation plate 410 and the second isolation plate 420 for reducing the leakage of the electromagnetic wave radiated by the feed array 30.

In the embodiment, both the th partition panel 410 and the second partition panel 420 may be flat metal plates.

In this embodiment, by placing the array lens 20 and the feed array 30 between the th partition plate 410 and the second partition plate 420, leakage of electromagnetic waves radiated from the feed source can be reduced, thereby improving the efficiency of the antenna and the structural strength of the antenna.

The embodiment of the present application further provides electronic devices, including the lens antenna in any embodiment, the electronic device having the lens antenna in any embodiment described above may be suitable for receiving and transmitting 5G communication millimeter wave signals, and meanwhile, the lens antenna has a short focal length and a small size, is easy to be integrated in the electronic device, and may reduce the occupied space of the lens antenna in the electronic device.

The electronic Device may be a communication module including a Mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), or other settable antenna.

In the embodiment, as shown in fig. 11, the electronic device further includes a detection module 1110, a switch module 1120, and a control module 1130, wherein the control module 1130 is connected to the detection module 1110 and the switch module 1120, respectively.

In the embodiment, the detecting module 1110 may obtain the beam signal strength of the electromagnetic wave radiated by the lens antenna when each of the feed units 310 is in the working state, and the detecting module 1110 may further be configured to detect and obtain parameters such as the power of the electromagnetic wave received by the lens antenna, the electromagnetic wave Absorption ratio (SAR), or the Specific Absorption Rate (SAR) when each of the feed units 310 is in the working state.

In the embodiment, the switch module 1120 is connected to the feed array 30 and configured to selectively turn on a connection path with any of the feed units 310 in , in the embodiment, the switch module 1120 may include an input terminal and at least two output terminals, wherein the input terminal is connected to the control module 1130, and the at least two output terminals are respectively connected to at least two feed units 310 , the switch module 1120 may be configured to receive a switching command from the control module 1130 to control the on and off of each switch in the switch module 1120, and to control the on connection of the switch module 1120 to any of antenna feed units 310, so that any of antenna feed units 310 are in an operating (on) state.

In the embodiment, the control module 1130 may control the switch module 1120 according to a preset policy to respectively enable each feed unit to be in an operating state, and perform transceiving of electromagnetic waves, that is, to obtain different beam directions, thereby implementing beam scanning, when any feed unit 310 is in an operating state, the detection module 1110 may correspondingly obtain beam signal intensities of electromagnetic waves radiated by a current lens antenna, referring to fig. 12, taking a 7-unit feed array 30 as an example, a beam scanning pattern is obtained through simulation, for example, when the feed array 30 includes five feed units 310, the detection module 1110 may correspondingly obtain five beam signal intensities, and select a strongest beam signal intensity from the five beam signal intensities, and take the feed unit 310 corresponding to the strongest beam signal intensity as the target feed unit 310, the switching instruction sent by the control module 1130 controls the switch module 1120 to be in conductive connection with the target feed unit 310, so as to enable the target feed unit 310 to be in an operating (conductive) state.

The electronic device in this embodiment can obtain different beam directions by switching the switches to make each feed unit 310 of the feed array 30 individually in a working state, thereby realizing beam scanning without a shifter and an attenuator, and greatly reducing the cost.

Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. Suitable non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

An array lens of , comprising:

a dielectric layer;

the two layers of array structures are respectively arranged on two opposite sides of the dielectric layer; wherein the array structure comprises a conductive body, a plurality of hollow grooves arranged in a two-dimensional array are arranged on the conductive body, a conductive sheet and a split ring piece arranged around the conductive sheet are arranged in each hollow groove, the conductive body, the conductive sheet and the split ring piece are separated from each other,

the two hollow-out grooves which are positioned at opposite positions of in the two-layer array structure are coaxially arranged, the opening directions of the opening ring pieces in the two hollow-out grooves are opposite, and the conducting pieces in the plurality of hollow-out grooves in the same array structure have gradually changed conducting piece sizes in the array direction.
2. The array lens of claim 1, wherein the array direction of the two-dimensional array comprises a row direction and a column direction, and wherein the conductive sheets in the plurality of hollowed-out grooves in the array structure have a gradual conductive sheet size in the row direction at .
3. The array lens of claim 2, wherein the size of the conducting strips in the row direction of the conducting strips in the plurality of hollowed-out grooves in the array structure of is symmetrically reduced from the center line of the two-dimensional array to the edge of the array, and the size of the conducting strips in the column direction is unchanged.
4. The array lens of claim 2, wherein the conductive strips in the plurality of hollowed-out grooves of the array structure have a gradually changing conductive strip size in the column direction.
5. The array lens of claim 4, wherein the conductive sheet size in the row direction of the conductive sheets in the plurality of hollowed-out grooves of the array structure decreases symmetrically from the center line of the two-dimensional array to the edge of the array, and the conductive sheet size in the column direction decreases symmetrically from the second center line of the two-dimensional array to the edge of the array.
6. The array lens of claim 2, wherein the conductive sheet dimension comprises at least a length dimension of the conductive sheet in the column direction.
7. The array lens of any of of claims 1-6, wherein the open ring segments in multiple hollowed-out grooves of the array structure have gradually changing opening angles in the array direction.
8. The array lens of claim 7, wherein the array direction comprises a row direction and a column direction, and wherein the opening angle of the open ring segments in the plurality of hollow-out grooves in the array structure in the row direction symmetrically increases from the center line of the two-dimensional array to the array edge and the opening angle in the column direction does not change, or the opening angle of the open ring segments in the plurality of hollow-out grooves in the array structure in the row direction symmetrically increases from the center line of the two-dimensional array to the array edge and the opening angle in the column direction symmetrically increases from the second center line of the two-dimensional array to the array edge.
9. The array lens of claim 1, wherein the open ring segments of the plurality of hollow-out grooves in the array structure of have a gradually changing ring width dimension in the array direction.
10. The array lens according to claim 1, wherein the distance between centers of two adjacent hollow grooves in the array direction is equal.
A lens antenna of the type 11, , comprising:

a feed array comprising at least two feed units;

the array lens of any of claims 1-10 disposed parallel to the array of feeds.
12. The lens antenna of claim 11, further comprising th and second spacers arranged in parallel, wherein the feed array and the lens are arranged between the th and second spacers.
An electronic device of , comprising the lens antenna of any of claims 11-12 through .
14. The electronic device of claim 13, further comprising:

the detection module is used for acquiring the beam signal intensity of the lens antenna when each feed source unit is in a working state;

the switch module is connected with the feed source array and used for selectively conducting a connection path with any of the feed source units;

and the control module is respectively connected with the detection module and the switch module and is used for controlling the switch module according to the beam signal intensity so as to enable the feed source unit corresponding to the strongest beam signal intensity to be in a working state.
15. The electronic device of claim 13, wherein the number of lens antennas is plural.