An antenna assembly

Abstract

The present invention is applicable to the field of antenna technology and provides an antenna assembly, which includes at least two antenna units, each of which includes at least one radiator, and different antenna units have different orientations. In this way, at least two antenna units with different orientations can receive electromagnetic waves from different directions, and corresponding antenna units and their radiators can be selected for use according to the strength of the received signal. Therefore, it can be ensured that the antenna assembly effectively receives electromagnetic wave signals, avoids the problem of poor electromagnetic wave signal reception in a single orientation, enhances the directivity of the antenna, and improves the gain of the antenna.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to an antenna assembly. Background Art

[0002] The fields of radio communication, broadcasting, television, radar, navigation, etc. all rely on antennas to receive and transmit electromagnetic waves to complete the wireless transmission of signals. Among them, sheet antennas have been rapidly developed and widely used due to their thin thickness and small space occupation.

[0003] At present, most of the antennas on the market are not just thin-film antennas, but they only have one radiating surface and are not very directional. Although the power can be amplified and useless frequencies can be filtered out by using an amplifier installed on the motherboard, this does not significantly solve the antenna's directional problem. In particular, when the direction of the antenna installation is very different from the direction of the nearby base station, the antenna's reception performance is particularly poor. Summary of the invention

[0004] The object of the present invention is to provide an antenna assembly, aiming to solve the technical problem that the existing antenna has weak directivity.

[0005] The present invention is implemented in this way: an antenna assembly includes at least two antenna units, each of the antenna units includes at least one radiator, and different antenna units have different directions.

[0006] In one embodiment, each of the antenna units includes at least two radiators, and the lengths of the radiators are different.

[0007] In one embodiment, each of the antenna units includes five radiators, and the lengths of the five radiators are different.

[0008] In one embodiment, each of the antenna units further includes a substrate and a grounding portion, the substrate and the grounding portion are both in sheet shape, and the radiator and the grounding portion are both disposed on a surface of the substrate.

[0009] In one embodiment, the side edges of the substrates are connected to each other, and the antenna units are rotated and distributed at a certain angle with the connected side edges of the substrates as the central axis.

[0010] In one embodiment, in each of the antenna units, the substrate is rectangular, the grounding portion is arc-shaped, and the radiators are arranged along the arc-shaped edge of the grounding portion.

[0011] In one embodiment, the antenna assembly further comprises a connector, a plurality of connector positions are arranged on an outer surface of the connector, and side edges of the substrates are inserted into the connector positions.

[0012] In one embodiment, each of the antenna units further includes a grounding portion, the grounding portion is non-planar, and each of the radiators is inserted on the grounding portion.

[0013] In one embodiment, each of the antenna units further comprises at least one feeder line, wherein the positive ends of the feeders are connected to the radiators one by one, and the negative ends of the feeders are connected to the grounding portion.

[0014] In one embodiment, the antenna assembly also includes a main control chip, at least two signal processing chips and at least two switch chips, each of the signal processing chips is independently connected to the main control chip, each of the signal processing chips is connected between the main control chip and one of the switch chips, each of the switch chips includes one or more switches, each of the switches is connected between the signal processing chip and one of the radiators, and the main control chip is used to obtain the signal strength of each of the radiators.

[0015] The antenna assembly provided by the present invention has the following beneficial effects:

[0016] The antenna assembly includes at least two antenna units, each antenna unit includes at least one radiator, and different antenna units have different orientations. Therefore, at least two antenna units with different orientations can receive electromagnetic waves from different directions, and the corresponding antenna unit and its radiator can be selected for use according to the strength of the received signal. Therefore, it can be ensured that the antenna assembly effectively receives electromagnetic wave signals, avoiding the problem of poor electromagnetic wave signal reception in a single orientation, enhancing the directivity of the antenna, and improving the gain of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic structural diagram of an antenna assembly provided by a first embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of an antenna assembly provided by a second embodiment of the present invention;

[0020] Figure 3 is a schematic structural diagram of an antenna assembly provided by a third embodiment of the present invention;

[0021] Figure 4 is a structural schematic diagram of an antenna unit in an antenna assembly provided by an embodiment of the present invention;

[0022] Figure 5 is another structural schematic diagram of an antenna unit in an antenna assembly provided by an embodiment of the present invention;

[0023] Figure 6 is another structural schematic diagram of an antenna unit in an antenna assembly provided by an embodiment of the present invention;

[0024] Figure 7 is another structural schematic diagram of an antenna unit in an antenna assembly provided in an embodiment of the present invention;

[0025] Figure 8 It is a schematic diagram of switching of radiators in an antenna assembly provided in an embodiment of the present invention.

[0026] The meanings of the marks in the figure are:

[0027] 100-antenna assembly, 10-antenna unit, 1-substrate, 2-radiator, 3-grounding part, 4-feed source, 5-feed line, 7-main control chip, 8-signal processing chip, 9-switch chip, 91-switch. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] In order to illustrate the technical solution of the present invention, a detailed description is given below in conjunction with specific drawings and embodiments.

[0031] See also Figures 1 to 3 The embodiment of the present invention provides an antenna assembly 100, which includes at least two antenna units 10, each antenna unit 10 includes at least one radiator 2, please refer to Figures 4 to 7, and the directions of at least two antenna units 10 are different, that is, there is an angle between at least two antenna units 10, and the angle is not equal to 180°.

[0032] The antenna assembly 100 provided in an embodiment of the present invention includes at least two antenna units 10, and different antenna units 10 have different orientations. This has the advantage that at least two antenna units 10 with different orientations can receive electromagnetic waves from different directions, and the corresponding antenna unit 10 and its radiator 2 can be selected for use according to the strength of the received signal. Therefore, it can ensure that the antenna assembly 100 effectively receives electromagnetic wave signals, avoid the problem of poor electromagnetic wave signal reception in a single orientation, enhance the directivity of the antenna, and improve the gain of the antenna.

[0033] In the antenna assembly 100, the number of antenna units 10 can be two, three, four or even more, and there is no particular limitation on this. The more the number of antenna units 10, the more directions the antenna units 10 can be directed, and the more electromagnetic waves can be received from more directions, and the better the signal reception effect. This is set according to specific needs and comprehensive costs.

[0034] The number of radiators 2 in each antenna unit 10 may be one or more. Since the length of the radiator 2 corresponds to the frequency band of the electromagnetic waves received and transmitted, if the number of radiators 2 in each antenna unit 10 is one, it corresponds to a single working frequency band; if the number of radiators 2 is multiple and has at least two lengths, the working frequency band of the antenna assembly 100 can be broadened or correspond to multiple working frequency bands. In specific applications, the number and length of the radiators 2 are set according to the specific usage scenario.

[0035] In an optional embodiment, there are multiple radiators 2 in each antenna unit 10, and the lengths of the multiple radiators 2 are different. Then, the length of each radiator 2 can be set corresponding to a working frequency band.

[0036] In an optional embodiment, the number of radiators 2 in each antenna unit 10 is five, and the lengths of the five radiators 2 are different. In this way, the five radiators 2 can correspond to five different operating frequency bands. The antenna assembly 100 has a wider operating frequency band.

[0037] In an optional embodiment, in each antenna unit 10, the lengths of the multiple radiators 2 are set to cover 170 MHz to 6 GHz, and can be used in any scenario requiring the reception and transmission of electromagnetic waves. The application scenario of the antenna assembly 100 can be wider.

[0038] In a specific application, the lengths of the five radiators 2 can be set to cover at least the frequency bands from 430 MHz to 950 MHz and from 2.3 GHz to 2.6 GHz, that is, to cover the operating frequency band of a home TV antenna and the operating frequency band of a 2.4G WIFI antenna.

[0039] Of course, in other embodiments, the number of radiators 2 in each antenna unit 10 can be other numbers, such as less than five. The frequency band range of the radiators 2 in each antenna unit 10 can only cover the above-mentioned operating frequency band of a home TV antenna or the operating frequency band of a 2.4G WIFI antenna, or only cover the operating frequency band of other scenarios. This is selected according to specific needs and is not particularly limited.

[0040] The form of the radiator 2 is not limited. Specifically, it can be one of a monopole antenna structure, a dipole antenna structure, a slot antenna structure, an inverted-F antenna structure, a planar antenna structure, a Yagi antenna structure, an array antenna structure, etc.

[0041] The specific shape of the radiator 2 is not particularly limited either. For example, Figures 4 to 7 as shown, taking the thin-film antenna structure as an example, the radiator 2 can be in a sheet shape, specifically a rectangular sheet shape. Of course, it can also be in other available forms such as a long strip shape, a curved strip shape, a circular sheet shape, an elliptical sheet shape, an irregular sheet shape, etc.

[0042] Please refer to Figure 4 , in one embodiment, each antenna unit 10 further includes a grounding portion 3 and at least one feeder 5. The number of feeders 5 corresponds to the number of radiators 2. One end of the positive pole of each feeder 5 is respectively connected to the radiators 2 in a one-to-one correspondence, and one end of the negative pole of each feeder 5 is connected to the grounding portion 3.

[0043] In one embodiment, at least one side edge of the grounding portion 3 can be arranged in an arc shape, and the plurality of radiators 2 are arranged on the arc edge of the grounding portion 3. Of course, the radiators 2 with different lengths in the same antenna unit 10 can be arranged on the edge of the grounding portion 3 in the same direction, and at least part of the edge of the grounding portion 3 can also be in a straight line form.

[0044] Please continue to refer to Figures 1 to 4 , in one embodiment, the antenna assembly 100 further includes a feed source 4, which is used to transmit radio frequency energy to the radiators 2 of each antenna unit 10. The form of the feed source 4 is not limited. In this embodiment, the feed source 4 can include a circuit board.

[0045] Next, a form of the antenna unit 10 is provided.

[0046] Please refer to Figures 1 to 4In one embodiment, the grounding portion 3 is in the form of a sheet, and each antenna unit 10 further includes a planar substrate 1, and a plurality of radiators 2, a plurality of feed lines 5 and the grounding portion 3 are all arranged on the surface of the substrate 1. Thus, the antenna unit 10 is generally a planar structure. The advantage of this is that the antenna unit 10 is in the form of a thin sheet antenna, and its volume can be smaller, and it is easier to set up in the environment, especially in the indoor environment, and does not occupy a significant space.

[0047] The substrate 1 can be a transparent substrate, such as PET (Polyethylene Terephthalate), or an opaque material, such as an opaque plastic material. This can be selected according to specific needs and application scenarios, and there is no particular limitation on this.

[0048] In this case, the number of antenna units 10 may be two, and the two antenna units 10 are located on different planes, such as Figure 1 As shown, the side edges of the substrates 1 of the two antenna units 10 are connected to each other and can even be integrally formed.

[0049] See also Figure 2 and Figure 3 The substrates 1 of the antenna units 10 are connected to each other at their side edges, and the antenna units 10 are rotated at a certain angle with their connected side edges as the central axis. The side edges of the grounding portions 3 may be connected to each other or not.

[0050] See also Figure 2 and Figure 3 The number of antenna units 10 is at least three, and the at least three antenna units 10 can be arranged on three planes, that is, the angle between two adjacent antenna units 10 is not 180°; the at least three antenna units 10 can also be arranged on two planes, and the directional patterns of two antenna units 10 located on the same plane are the same or overlapped, thereby improving the gain of the antenna assembly 100.

[0051] like Figure 2 As shown in , there are four antenna units 10, and the four antenna units 10 are arranged to be located in pairs on the same plane. The top view of the antenna assembly 100 is in the shape of a "cross", and the angle between two adjacent antenna units 10 is 90°. Figure 3 As shown in , the number of antenna units 10 is eight, and the eight antenna units 10 are arranged to be located in pairs on the same plane, and the angle between the planes of two adjacent antenna units 10 is 45°. In this way, the antenna assembly 100 has better directivity and higher gain. In other embodiments, the antenna units 10 are allowed to have other numbers, and the angle between the planes of two adjacent antenna units 10 may not be exactly the same.

[0052] Optionally, in one embodiment, the antenna assembly 100 further includes a connector (not shown), the connector being provided with a plurality of connection positions, the side edges of each antenna unit 10 being inserted into the connection positions, so that each antenna unit 10 is arranged to rotate at a certain angle with the connector as the central axis. In a specific application, the connector may be columnar, and each antenna unit 10 is inserted into the outer peripheral surface of the connector, so that each antenna unit 10 can be as close as possible to each other, so as to reduce the volume of the antenna assembly 100.

[0053] The connecting piece may be made of non-metallic material, such as plastic material; the connecting piece may also be made of metal material. Each grounding portion 3 may be directly connected to the connecting piece or may be insulated and connected thereto. When each antenna unit 10 includes multiple radiators 2, multiple radiators 2 close to the connecting piece in different antenna units 10 may be directly connected to the connecting piece or may not be connected thereto.

[0054] See also Figure 4 In this embodiment, the grounding portion 3 is disposed in the middle of the substrate 1, the radiator 2 is disposed on one side of the grounding portion 3, and the feed source 4 can be disposed on the other side of the substrate 1. In particular, the feed source 4 can be disposed on the substrate 1 of multiple antenna units 10. Figures 1 to 3 .

[0055] Optionally, in this embodiment, in each antenna unit 10, the substrate 1 is substantially rectangular, the feed source 4 is disposed at a corner of the substrate 1, the ground portion 3 is arc-shaped and disposed on one side of the feed source 4, and a plurality of radiators are arranged along the arc edge of the ground portion 3, such as Figures 1 to 4 shown.

[0056] Next, another form of antenna unit 10 is provided.

[0057] See also Figures 5 to 7 In one embodiment, the grounding portion 3 is non-planar. The advantage of this is that the shape of the grounding portion 3 can be designed to have a certain spatial shape as needed, and the arrangement of each radiator 2 can also be designed to have a certain spatial shape, so as to beautify the environment in the space and improve the user experience on the basis of realizing the signal receiving and sending function.

[0058] Specifically, the grounding portion 3 can be in the shape of a regular column or an irregular column, such as a tree trunk or branch, and the radiator 2 can be designed as a leaf. A plurality of radiators 2 are inserted on the grounding portion 3, and each antenna unit 10 is in the shape of a tree. Figure 5 As shown, the antenna assembly 100 is in a tree shape as a whole. Of course, the specific size of the grounding portion 3 in different antenna units 10 and the specific position of the radiator 2 in different antenna units 10 may not be completely the same.

[0059] Alternatively, the grounding portion 3 may be configured such that the end surface is spherical or quasi-spherical, and each radiator 2 is inserted at the periphery of the end of the grounding portion 3. The antenna unit 10 may be in the shape of a flower, such as Figure 7 As shown, the plurality of antenna units 10 may be arranged in the shape of a bunch of flowers.

[0060] In other optional embodiments, the multiple antenna units 10 of the antenna assembly 100 may have both tree shapes and flower shapes, which are designed according to specific shape requirements and are not particularly limited.

[0061] In specific applications, the antenna assembly 100 may also be combined with some decorative materials and structures to make the tree shape or flower shape more vivid.

[0062] Alternatively, the grounding portion 3 may be spherical, and a plurality of radiators 2 may be inserted into the spherical surface in a needle-like manner, forming a simple and unique design, which also has a certain decorative beauty in the environment.

[0063] Or, if Figure 6 As shown, the grounding portion 3 is in the form of a disc with a certain thickness, the radiator 2 is in the form of a windmill blade or a fan blade, etc., and multiple radiators 2 are inserted on the outer peripheral surface of the grounding portion 3 with a certain inclination angle, thereby presenting a windmill shape or a fan shape.

[0064] In this form, the specific positions of the feed source 4 and the feed line 5 can be set according to the form of the grounding part 3, for example, hidden on one side of multiple grounding parts 3 or hidden in decorative materials and structures, so as to meet the input impedance in the corresponding frequency band and beautify the environment, etc., which will not be repeated here.

[0065] More specific shapes of the antenna assembly 100 will not be described one by one.

[0066] See also Figure 8 , and combined with Figures 1 to 7 In one embodiment, the antenna assembly 100 further includes a main control chip 7 and at least two signal processing chips 8 ( Figure 8 Only one is shown) and at least two switch chips 9 ( Figure 8Only one is shown in the figure), each signal processing chip 8 is independently connected to the main control chip 7, each signal processing chip 8 is connected between the main control chip 7 and a switch chip 9, each switch chip 9 includes at least one switch 91, and each switch 91 is connected between the corresponding signal processing chip 8 and a radiator 2. The multiple switches 91 in each switch chip 9 correspond to the multiple radiators 2 in one antenna unit 10. The main control chip 7 is used to obtain the signal strength of each radiator 2 through each switch chip 9 and each signal processing chip 8, and can also generate a signal spectrum according to the signal strength. The main control chip 7 determines to use one of the radiators 2 in one of the antenna units 10 to send and receive signals, especially to receive signals, according to the signal strength of each radiator 2. The main control chip 7 controls the corresponding signal processing chip 8 and the corresponding switch 91 in the corresponding switch chip 9 to turn on.

[0067] Specifically, each switch 91 may be connected to the corresponding radiator 2 by connecting the corresponding feeder line 5 .

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An antenna assembly, It is characterized in that The device comprises at least two antenna units, each of which comprises at least two radiators, and different antenna units have different directions; Each of the antenna units further comprises a substrate and a grounding portion, wherein the substrate and the grounding portion are both in sheet form, and the radiator and the grounding portion are both arranged on the surface of the substrate; The side edges of the substrates are connected to each other, and the antenna units are rotated and distributed at a certain angle with the connected side edges of the substrates as the central axis; In each of the antenna units, the substrate is rectangular, the grounding portion is arc-shaped, and the radiators are arranged along the arc-shaped edge of the grounding portion.

2. The antenna assembly according to claim 1, It is characterized in that In each of the antenna units, the lengths of the radiators are different.

3. The antenna assembly according to claim 2, It is characterized in that Each of the antenna units includes five radiators, and the lengths of the five radiators are different.

4. The antenna assembly according to claim 1, It is characterized in that The antenna assembly further comprises a connecting member, a plurality of connecting positions are arranged on the outer surface of the connecting member, and the side edges of the substrates are inserted into the connecting positions.

5. The antenna assembly according to any one of claims 1 to 4, It is characterized in that Each of the antenna units further comprises at least one feeder line, wherein the positive ends of the feeders are connected to the radiators one by one, and the negative ends of the feeders are connected to the grounding portion.

6. The antenna assembly according to any one of claims 1 to 4, It is characterized in that The antenna assembly also includes a main control chip, at least two signal processing chips and at least two switch chips. Each of the signal processing chips is independently connected to the main control chip. Each of the signal processing chips is connected between the main control chip and one of the switch chips. Each of the switch chips includes one or more switches. Each of the switches is connected between the signal processing chip and one of the radiators. The main control chip is used to obtain the signal strength of each of the radiators.

Images