Decoupling assembly, antenna array and communication device

Abstract

The utility model provides a decoupling assembly, an antenna array and a communication device, the decoupling assembly comprises a first connecting part, a second connecting part, a first coupling line and a second coupling line, the first connecting part is used for coupling connection with a first radiator, and the second connecting part is used for coupling connection with a second radiator. The first connecting part and the second connecting part are arranged in a spaced mode in the first direction, one end of the first coupling line is connected with the first connecting part, one end of the second coupling line is connected with the second connecting part, the other end of the first coupling line extends in the second direction, the second direction is orthogonal to the first direction, and the other end of the second coupling line extends in the second direction; the first coupling lines and the second coupling lines are arranged at intervals along a direction orthogonal to a second direction; the length of the first coupling line and the length of the second coupling line are both odd times of the quarter wavelength of an electric signal in the signal source. The decoupling assembly provided by the embodiment of the utility model has small influence on a radiation pattern of an original antenna.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and more particularly relates to a decoupling assembly, an antenna array and a communication device. BACKGROUND

[0002] The coupling between the antenna arrays mainly comes from the inductive coupling between adjacent antenna units, and needs to be reduced by a decoupling structure to improve the isolation between the antenna arrays. However, the decoupling structure in the related art has the problem of greatly affecting the radiation pattern of the original antenna. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application aim to provide a decoupling assembly, an antenna array and a communication device to solve the technical problem of the decoupling structure in the prior art greatly affecting the radiation pattern of the original antenna.

[0004] In a first aspect, the embodiments of the present application provide a decoupling assembly.

[0005] The decoupling assembly provided by the embodiments of the present application is used to connect between a first radiator in a first antenna and a second radiator in a second antenna, and includes a first connecting part and a second connecting part. The first connecting part is used to be coupled to the first radiator, and the second connecting part is used to be coupled to the second radiator. The first connecting part and the second connecting part are arranged in a first direction. A first coupling line and a second coupling line are provided. One end of the first coupling line is connected to the first connecting part, and one end of the second coupling line is connected to the second connecting part. The other end of the first coupling line extends in a second direction, and the second direction is orthogonal to the first direction. The other end of the second coupling line also extends in the second direction, and the first coupling line and the second coupling line are arranged in a direction orthogonal to the second direction. The length of the first coupling line and the length of the second coupling line are both an odd multiple of one-quarter wavelength of an electrical signal in the signal source.

[0006] The decoupling assembly provided by the embodiments of the present application has the beneficial effect that, compared with the prior art, the first coupling line and the second coupling line of the decoupling assembly form a parallel double-line structure. When the length of the first coupling line and the length of the second coupling line are one-quarter wavelength of the electrical signal, the first coupling line and the second coupling line are equivalent to a ground transmission line with an impedance of 0. Therefore, the electrical signal transmitted from the first connecting part to the decoupling structure will all flow to the end of the first coupling line, and the electrical signal transmitted from the second connecting part to the decoupling structure will all flow to the end of the second coupling line, so that the first radiator and the second radiator are decoupled.

[0007] In a second aspect, the embodiments of the present application provide an antenna array.

[0008] The antenna array provided by the embodiments of the present application comprises a decoupling component, which is the decoupling component as described in any of the above embodiments.

[0009] The first antenna comprises a first radiator connected with a first signal source;

[0010] The second antenna comprises a second radiator connected with a second signal source;

[0011] The decoupling component is connected between the first radiator and the second radiator.

[0012] It can be understood that the beneficial effects of the second aspect described above can be referred to the related description in the first aspect described above, which will not be repeated here

[0013] Optionally, the antenna array further comprises a dielectric substrate, and the first radiator, the second radiator and the decoupling component are all arranged on the dielectric substrate, the dielectric substrate comprises a first surface and a second surface which are parallel to each other and are arranged at intervals along a third direction, the third direction is orthogonal to the first direction, and the third direction is orthogonal to the second direction.

[0014] The first coupling line and the second coupling line are both arranged on the first surface, and the first coupling line and the second coupling line are arranged at intervals along the first direction.

[0015] Alternatively, the first coupling line is arranged on the first surface, the second coupling line is arranged on the second surface, and the first coupling line and the second coupling line are arranged in a stacked manner along the third direction.

[0016] Optionally, the first radiator and the second radiator are both patches.

[0017] The first antenna further comprises a third connecting part, one end of the third connecting part is coupled to the end of the first radiator away from the first connecting part, and the other end of the third connecting part is adapted to be connected with the first signal source.

[0018] The second antenna further comprises a fourth connecting part, one end of the fourth connecting part is coupled to the end of the second radiator away from the second connecting part, and the other end of the fourth connecting part is adapted to be connected with the second signal source.

[0019] Optionally, the antenna array further comprises a first equivalent ground and a second equivalent ground, the third connecting part is arranged on the first surface, the first equivalent ground is arranged on the second surface, and at least part of the first equivalent ground is arranged in a stacked manner with part of the third connecting part, the fourth connecting part is arranged on the first surface, the second equivalent ground is arranged on the second surface, and at least part of the second equivalent ground is arranged in a stacked manner with part of the fourth connecting part.

[0020] Optionally, the first radiators are multiple, the multiple first radiators are arranged along a second direction, the second radiators are multiple, the multiple second radiators are arranged along the second direction, and the decoupling components are multiple, the multiple decoupling components are connected between the first radiators and the second radiators in one-to-one correspondence.

[0021] Optionally, the antenna array further comprises a reflecting plate, and the reflecting plate is arranged in a stack with the dielectric substrate.

[0022] Optionally, the first antenna further comprises a third radiator and a fifth connecting part, the third radiator is a patch, the third radiator is arranged on a side of the first radiator away from the first connecting part in one-to-one correspondence, and the third radiator is connected to the first signal source through the fifth connecting part.

[0023] The second antenna further comprises a fourth radiator and a sixth connecting part, the fourth radiator is a patch, the fourth radiator is arranged on a side of the second radiator away from the second connecting part in one-to-one correspondence, and the fourth radiator is connected to the second signal source through the sixth connecting part.

[0024] Optionally, the first radiator and the second radiator are both dipoles.

[0025] The first radiator extends along the first direction, the first radiator is provided with a first input port, the first input port is adapted to be connected to a signal source, and a distance between the first input port and both ends of the first radiator in the first direction is one quarter of a wavelength of an electrical signal in the signal source.

[0026] The second radiator extends along the first direction, the second radiator is provided with a second input port, the second input port is adapted to be connected to a signal source, and a distance between the second input port and both ends of the first radiator in the first direction is one quarter of a wavelength of an electrical signal in the signal source.

[0027] In a third aspect, an embodiment of the present application provides a communication device.

[0028] It can be understood that the beneficial effects of the above third aspect can be referred to the related description in the above first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0030] Figure 1 The structural schematic diagram of the decoupling assembly provided by the embodiment of the present application is shown in the figure.

[0031] Figure 2 The structural schematic diagram of the decoupling assembly provided by another embodiment of the present application is shown in the figure.

[0032] Figure 3 The structural schematic diagram of the antenna array provided by the first embodiment of the present application is shown in the figure.

[0033] Figure 4 The structural schematic diagram of the antenna array provided by the second embodiment of the present application is shown in the figure.

[0034] Figure 5 The structural schematic diagram of the antenna array provided by the third embodiment of the present application is shown in the figure.

[0035] Figure 6 The equivalent circuit diagram of the decoupling assembly provided by the embodiment of the present application is shown in the figure.

[0036] Figure 7 The S parameter schematic diagram of the antenna array provided by the first embodiment of the present application is shown in the figure.

[0037] Figure 8 The S parameter schematic diagram of the antenna array provided by the second embodiment of the present application is shown in the figure.

[0038] Figure 9 The S parameter schematic diagram of the antenna array provided by the third embodiment of the present application is shown in the figure.

[0039] In the figures, various reference signs:

[0040] 100, antenna array;

[0041] 10, decoupling assembly; 11, first connecting part; 111, second part; 112, first part; 12, second connecting part; 121, fourth part; 122, third part; 13, first coupling line; 14, second coupling line;

[0042] 20, first antenna; 21, first radiator; 22, third connecting part; 23, third radiator; 24, fifth connecting part; 25, first input port;

[0043] 30, second antenna; 31, second radiator; 32, fourth connecting portion; 33, fourth radiator; 34, sixth connecting portion; 35, second input port;

[0044] 40, dielectric substrate; 41, first surface; 42, second surface;

[0045] 51, first equivalent ground; 52, second equivalent ground;

[0046] 60, reflecting plate. DETAILED DESCRIPTION

[0047] In order to make the technical problems solved by the present application, the technical solutions and the beneficial effects clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0049] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0051] Please refer to Figure 1 , Figure 2 and Figure 6 , the decoupling assembly 10 provided by the embodiments of the present application will be described.

[0052] It should be noted that the first direction in the following is the x direction shown in the figure, the second direction in the following is the y direction shown in the figure, and the third direction in the following is the z direction shown in the figure.

[0053] The decoupling assembly 10 provided by the embodiment of the present application comprises a first connecting part 11, a second connecting part 12, a first coupling line 13 and a second coupling line 14.

[0054] The first connecting part 11 is used for being coupled with the first radiator 21, and the second connecting part 12 is used for being coupled with the second radiator 31. The first connecting part 11 and the second connecting part 12 are arranged at intervals along a first direction x.

[0055] One end of the first coupling line 13 is connected with the first connecting part 11, and one end of the second coupling line 14 is connected with the second connecting part 12. The other end of the first coupling line 13 extends along a second direction y, and the other end of the second coupling line 14 extends along the second direction y. The first coupling line 13 and the second coupling line 14 are arranged at intervals along a direction orthogonal to the second direction y. The length of the first coupling line 13 and the length of the second coupling line 14 are both an odd multiple of a quarter wavelength of the electric signal in the signal source.

[0056] As shown in Figure 1 and Figure 2 , the first coupling line 13 extends along the second direction y. One end of the first coupling line 13 is connected with the end of the first connecting part 11 facing the second connecting part 12, and the other end of the first coupling line 13 extends away from the first connecting part 11 along the second direction y. The second coupling line 14 extends along the second direction y. One end of the second coupling line 14 is connected with the end of the second connecting part 12 facing the first connecting part 11, and the other end of the second coupling line 14 extends away from the second connecting part 12 along the second direction y.

[0057] The first coupling line 13 and the second coupling line 14 are arranged at intervals along the first direction x or the first coupling line 13 and the second coupling line 14 are arranged at intervals along a third direction z, so that the first coupling line 13 and the second coupling line 14 combine to form a parallel double-line structure with one end open. According to the equivalent principle in the circuit theory, the equivalent circuit of the first radiator 21 and the first signal source connected therewith, the second radiator 31 and the second signal source connected therewith, and the decoupling assembly 10 is as shown in Figure 6 .

[0058] In the equivalent circuit shown in Figure 6 , it is assumed that the impedance of the circuit between the first signal source and the decoupling assembly 10 and the impedance of the circuit between the second signal source and the decoupling assembly 10 are both 1, the impedance of the parallel double-line formed by the first coupling line 13 and the second coupling line 14 is a, and the length of the parallel double-line formed by the first coupling line 13 and the second coupling line 14 in the second direction y is b. It can be obtained that the equivalent circuit shown in Figure 6 has the following ABCD matrix:

[0059]

[0060] Furthermore, based on the transformation relationship between the ABCD matrix and the S-parameters mentioned above, the following can be calculated: Figure 6 The S21 parameter (forward transmission coefficient) shown in the figure has the following results:

[0061]

[0062] From the above equation, it can be concluded that when the lengths of the first coupling line 13 and the second coupling line 14 in the second direction y are both odd multiples of a quarter wavelength of the electrical signal in the signal source, that is, in the above equation... When (where n is an odd number and λ is the wavelength of the electrical signal in the signal source), Figure 6 The forward transmission coefficient S21 = 0 in the equivalent circuit shown, which indicates that the decoupling of the first signal source and the second signal source can be achieved when the lengths of the first coupling line 13 and the second coupling line 14 in the second direction y are both odd multiples of a quarter wavelength of the electrical signal in the signal source.

[0063] The beneficial effects of the decoupling component 10 provided in this application embodiment are as follows: Compared with the prior art, the first coupling line 13 and the second coupling line 14 of the decoupling component 10 provided in this application embodiment form a parallel double-line structure. When the length of the first coupling line 13 and the second coupling line 14 is one-quarter wavelength of the electrical signal, the first coupling line 13 and the second coupling line 14 are equivalent to ground transmission lines with zero impedance. As a result, the electrical signal transmitted from the first connection part 11 to the decoupling structure will all flow to the end of the first coupling line 13, and the electrical signal transmitted from the second connection part 12 to the decoupling structure will all flow to the end of the second coupling line 14, thereby decoupling the first radiator 21 and the second radiator 31.

[0064] In addition, when the decoupling component 10 provided in this application embodiment is applied to antenna arrays in different operating frequency bands, adjusting the length of the first coupling line 13 and the second coupling line 14 to one-quarter of the wavelength corresponding to the center frequency of the operating frequency band of the antenna array will enable the decoupling component 10 to adapt to antenna arrays in different operating frequency bands, giving the decoupling component 10 provided in this application embodiment the advantage of easy optimization.

[0065] In the process of the decoupling component 10 provided in this application embodiment producing the decoupling effect, the first coupling line 13 and the second coupling line 14 are combined to form a parallel double-line structure, so that the decoupling component 10 does not radiate energy to the outside, thus the decoupling component 10 provided in this application embodiment has the advantage of having less impact on the original antenna radiation pattern.

[0066] In some embodiments provided in this application, the first connecting part 11 is coupled to the first radiator 21, and the second connecting part 12 is coupled to the second radiator 31.

[0067] likeFigure 1 As shown, the first connecting part 11 includes a first part 112 extending along the first direction x and a second part 111 extending along the second direction y, the second connecting part 12 includes a third part 122 extending along the first direction x and a fourth part 121 extending along the second direction y, the first part 112 and the third part 122 are arranged at intervals along the first direction x, the second part 111 is located at one end of the first part 112 away from the third part 122, and the fourth part 121 is located at one end of the second part 111 away from the first part 112.

[0068] The second part 111 can be arranged at intervals from the first radiator 21, so that the second part 111 is coupled to the first radiator 21, and the fourth part 121 can be arranged at intervals from the second radiator 31, so that the fourth part 121 is coupled to the second radiator 31, thereby coupling the first connecting part 11 to the first radiator 21 and coupling the second connecting part 12 to the second radiator 31.

[0069] Thus, the first connecting part 11 and the first radiator 21 are coupled, and the second connecting part 12 and the second radiator 31 are coupled, so that the first radiator 21 and the second radiator 31 can be patches of a directional antenna or dipoles of an omnidirectional antenna, and the decoupling structure provided by the embodiment of the application can be compatible with directional antennas and omnidirectional antennas.

[0070] The following will be described in combination with Figures 3 to 5 The antenna array 100 provided by the embodiment of the application is described.

[0071] The antenna array 100 provided by the embodiment of the application includes the decoupling assembly 10, which is the decoupling assembly 10 in any of the above embodiments;

[0072] The first antenna 20 includes the first radiator 21 connected to the first signal source;

[0073] The second antenna 30 includes the second radiator 31 connected to the second signal source;

[0074] The decoupling assembly 10 is connected between the first radiator 21 and the second radiator 31.

[0075] The antenna array 100 provided in the embodiments of the present application comprises a first antenna 20, a second antenna 30, and a decoupling component 10 connected between the first antenna 20 and the second antenna 30. The decoupling component 10 provided in the embodiments of the present application can realize decoupling between the first signal source and the second signal source, thereby reducing the coupling effect between the first antenna 20 and the second antenna 30, improving the isolation between the first antenna 20 and the second antenna 30, and improving the radiation efficiency of the first antenna 20 and the second antenna 30 after decoupling by the decoupling component 10, thereby making the antenna array 100 provided in the present application have the advantages of high isolation between antennas and high radiation efficiency.

[0076] In some embodiments provided in the present application, the antenna array 100 further comprises a dielectric substrate 40, the first radiator 21, the second radiator 31, and the decoupling component 10 are all arranged on the dielectric substrate 40, and the dielectric substrate 40 comprises a first surface 41 and a second surface 42 which are parallel to each other and are arranged at intervals along a third direction z, the third direction z is orthogonal to the first direction x, and the third direction z is orthogonal to the second direction y.

[0077] As shown in Figures 1 to 5 , the dielectric substrate 40 extends along the xOy plane shown in the figure, and the first surface 41 and the second surface 42 also extend along the xOy plane shown in the figure.

[0078] The material of the dielectric substrate 40 can include one or more materials with low dielectric constant, such as FR4 (epoxy resin-based glass fiber composite material), RO4003C (glass cloth reinforced, ceramic filled hydrocarbon material), etc.

[0079] In some embodiments provided in the present application, as shown in Figure 1 , the first coupling line 13 and the second coupling line 14 are both arranged on the first surface 41, and the first coupling line 13 and the second coupling line 14 are arranged at intervals along the first direction x.

[0080] In this way, the first coupling line 13 and the second coupling line 14 form a coplanar double-line structure, so that the decoupling component 10 provided in the present application is located on the first surface 41, which is beneficial to improving the integration of the antenna.

[0081] In some other embodiments provided in the present application, as shown in Figure 2 , the first coupling line 13 is arranged on the first surface 41, the second coupling line 14 is arranged on the second surface 42, and the first coupling line 13 and the second coupling line 14 are arranged in a stacked manner along the third direction z.

[0082] The first coupling line 13 and the first connecting section are both located on the first surface 41, and the second coupling line 14 and the second connecting section are both located on the second surface 42, so that the size of the decoupling assembly 10 in the first direction x is reduced, thereby improving the space utilization.

[0083] In some embodiments provided by the present application, the first radiator 21 is a patch or a dipole, and the second radiator 31 is a patch or a dipole.

[0084] In some embodiments, as shown in Figure 3 and Figure 4 , the first radiator 21 and the second radiator 31 are both patches of directional antennas. Thus, the decoupling assembly 10 can be used for decoupling between directional antennas.

[0085] In some other embodiments, as shown in Figure 5 , the first radiator 21 and the second radiator 31 are both dipoles of omnidirectional antennas. Thus, the decoupling assembly 10 can be used for decoupling between omnidirectional antennas.

[0086] In some other embodiments (not shown in the drawings), the first radiator 21 is a patch of a directional antenna, and the second radiator 31 is a dipole of an omnidirectional antenna.

[0087] The antenna array 100 provided by the present application is described below in combination with multiple embodiments.

[0088] Embodiment one:

[0089] In some embodiments provided by the present application, the first radiator 21 and the second radiator 31 are both patches;

[0090] The first antenna 20 further comprises a third connecting section 22, one end of the third connecting section 22 is coupled to an end of the first radiator 21 away from the first connecting section 11, and the other end of the third connecting section 22 is adapted to be connected to the first signal source;

[0091] The second antenna 30 further comprises a fourth connecting section 32, one end of the fourth connecting section 32 is coupled to an end of the second radiator 31 away from the second connecting section 12, and the other end of the fourth connecting section 32 is adapted to be connected to the second signal source.

[0092] As shown in Figure 3 , the third connecting section 22 is connected between the first signal source and the first radiator 21 to input the electrical signal of the first signal source into the first radiator 21, and the fourth connecting section 32 is connected between the second signal source and the second radiator 31 to input the electrical signal of the second signal source into the second radiator 31.

[0093] Thus, the decoupling assembly 10 provided by the present application can be applied to directional antennas, as shown in Figure 7As shown, the isolation between the first signal source and the second signal source within the target bandwidth (5.15GHz-5.85GHz) of the antenna array 100 in Embodiment One is improved from 19dB to 24dB before and after the decoupling assembly 10 provided by the present application is arranged between the first antenna 20 and the second antenna 30, Figure 7 A in the formula (1) is the S parameter of the antenna array 100 after the decoupling assembly 10 provided by the present application is arranged between the first antenna 20 and the second antenna 30, Figure 7 B in the formula (1) is the S parameter of the antenna array 100 before the decoupling assembly 10 provided by the present application is arranged between the first antenna 20 and the second antenna 30.

[0094] In some embodiments provided by the present application, the antenna array 100 further comprises a first equivalent ground 51 and a second equivalent ground 52, the third connecting part 22 is arranged on the first surface 41, the first equivalent ground 51 is arranged on the second surface 42, and at least part of the first equivalent ground 51 and part of the third connecting part 22 are arranged in a stacked manner along the third direction z, the fourth connecting part 32 is arranged on the first surface 41, the second equivalent ground 52 is arranged on the second surface 42, and at least part of the second equivalent ground 52 and part of the fourth connecting part 32 are arranged in a stacked manner along the third direction z.

[0095] Therefore, by arranging the first equivalent ground 51 and the second equivalent ground 52, the ground potential of the external interference noise introduced can be effectively kept consistent with the ground potential inside the first signal source or the second signal source, thereby reducing the influence of the noise on the signal.

[0096] In some embodiments, as shown in Figure 3 The first radiator 21, the second radiator 31 and the decoupling assembly 10 are all located on the first surface 41.

[0097] In some other embodiments (not shown in the figure), the first radiator 21 and the second radiator 31 are located on the first surface 41, and the decoupling assembly 10 is located on the second surface 42.

[0098] In some embodiments provided by the present application, the antenna array 100 further comprises a reflecting plate 60, and the reflecting plate 60 is arranged in a stacked manner with the dielectric substrate 40.

[0099] As shown in Figure 3 The reflecting plate 60 extends along the xOy plane shown in the figure, and the reflecting plate 60 is arranged in a spaced manner with the dielectric substrate 40 along the third direction z.

[0100] The reflecting plate 60 comprises at least one of a metal material or a carbon fiber material. The material with high electrical conductivity can more effectively reflect electromagnetic waves and reduce energy loss, thereby improving the gain and radiation efficiency of the antenna array 100 provided by the present application.

[0101] Embodiment Two:

[0102] In some embodiments provided by the present application, the first radiators 21 are multiple, the multiple first radiators 21 are arranged along the second direction y, the second radiators 31 are multiple, the multiple second radiators 31 are arranged along the second direction y, and the decoupling assemblies 10 are multiple, the decoupling assemblies 10 are connected between the first radiators 21 and the second radiators 31 in one-to-one correspondence.

[0103] Therefore, by arranging the multiple first radiators 21 and the multiple second radiators 31, the radiation intensity of the first antenna 20 and the second antenna 30 is respectively improved, and the antenna array 100 provided by the present application has the advantage of high gain.

[0104] In some embodiments provided by the present application, the first antenna 20 further comprises a third radiator 23 and a fifth connecting part 24, the third radiator 23 is a patch, the third radiator 23 is arranged on the side of the first radiator 21 away from the first connecting part 11 in one-to-one correspondence, and the third radiator 23 is connected with the first signal source through the fifth connecting part 24.

[0105] The second antenna 30 further comprises a fourth radiator 33 and a sixth connecting part 34, the fourth radiator 33 is a patch, the fourth radiator 33 is arranged on the side of the second radiator 31 away from the second connecting part 12 in one-to-one correspondence, and the fourth radiator 33 is connected with the second signal source through the sixth connecting part 34.

[0106] As shown in Figure 4 The fifth connecting part 24 and the third connecting part 22 are both connected with the first signal source, and the electric signal inputted by the first signal source into the fifth connecting part 24 is opposite in phase to the electric signal inputted by the first signal source into the third connecting part 22.

[0107] The sixth connecting part 34 and the fourth connecting part 32 are both connected with the second signal source, and the electric signal inputted by the second signal source into the sixth connecting part 34 is opposite in phase to the electric signal inputted by the second signal source into the fourth connecting part 32.

[0108] Therefore, the equivalent current directions in the first radiator 21 and the third radiator 23 are the same, that is, the first radiator 21 and the third radiator 23 radiate in the same direction, and the equivalent current directions in the second radiator 31 and the fourth radiator 33 are the same, that is, the second radiator 31 and the fourth radiator 33 radiate in the same direction.

[0109] Therefore, the decoupling assembly 10 provided by the present application can be applied to the antenna array 100 composed of two multi-element directional antennas, and by arranging multiple columns of radiators along the second direction y in the first antenna 20 and the second antenna 30, the gain of the antenna array 100 provided by the present application can be further improved.

[0110] In addition, as shown in Figure 8As shown, before and after the decoupling component 10 provided in this application is set between the first antenna 20 and the second antenna 30, the isolation between the first signal source and the second signal source in the antenna array 100 in Embodiment 2 within the target bandwidth (5.15GHz-5.85GHz) is improved from 15dB to 24dB. Figure 8 In Embodiment 2, C represents the S-parameter of the antenna array 100 after the decoupling component 10 provided in this application is set between the first antenna 20 and the second antenna 30. Figure 8 In Embodiment 2, D represents the S-parameter of the antenna array 100 before the decoupling component 10 provided in this application is set between the first antenna 20 and the second antenna 30.

[0111] Example 3:

[0112] In some embodiments provided in this application, both the first radiator 21 and the second radiator 31 are oscillators;

[0113] The first radiator 21 extends along the first direction x. The first radiator 21 is provided with a first input port 25. The first input port 25 is adapted to be connected to a signal source. The distance between the first input port 25 and the two ends of the first radiator 21 in the first direction x is one-quarter of the wavelength of the electrical signal in the signal source.

[0114] The second radiator 31 extends along the first direction x. The second radiator 31 is provided with a second input port 35, which is adapted to be connected to a signal source. The distance between the second input port 35 and the two ends of the first radiator 21 in the first direction x is one-quarter of the wavelength of the electrical signal in the signal source.

[0115] like Figure 5 As shown, the first radiator 21 and the second radiator 31 are both half-wave dipole radiators, the first antenna 20 and the second antenna 30 are both half-wave dipole antennas, the first connecting part 11 is coupled to one end of the first radiator 21 in the first direction x, and the second connecting part 12 is coupled to one end of the second radiator 31 in the first direction x.

[0116] Therefore, the decoupling component 10 provided in this application can be applied to an antenna array 100 composed of omnidirectional antennas, such as... Figure 9 As shown, before and after the decoupling component 10 provided in this application is set between the first antenna 20 and the second antenna 30, the isolation between the first signal source and the second signal source in the antenna array 100 in Embodiment 3 is improved from 21dB to 26dB within the target bandwidth (5.15GHz-5.85GHz), without deteriorating the impedance matching. Figure 9 In Embodiment 3, E represents the S-parameter of the antenna array 100 after the decoupling component 10 provided in this application is set between the first antenna 20 and the second antenna 30. Figure 9F in the S parameter of the antenna array 100 before the decoupling assembly 10 provided by the application is arranged between the first antenna 20 and the second antenna 30 in Embodiment Three.

[0117] The communication device provided by the embodiments of the application is described below.

[0118] The antenna array 100 provided by the application has the advantages of high isolation and high radiation efficiency, so that the communication device provided by the application also has the advantages of high isolation and high radiation efficiency.

[0119] The above merely provides the preferred embodiments of the application, but is not intended to limit the application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A decoupling assembly for connecting between a first radiator in a first antenna and a second radiator in a second antenna, characterized by, The antenna array comprises: a first connecting part and a second connecting part, the first connecting part is used for being coupled with a first radiator, the second connecting part is used for being coupled with a second radiator, the first connecting part and the second connecting part are arranged in a first direction; a first coupling line and a second coupling line, one end of the first coupling line is connected with the first connecting part, one end of the second coupling line is connected with the second connecting part, the other end of the first coupling line extends in a second direction, the second direction is orthogonal to the first direction, the other end of the second coupling line extends in the second direction, and the first coupling line and the second coupling line are arranged in a direction orthogonal to the second direction; wherein the length of the first coupling line and the length of the second coupling line are both an odd multiple of a quarter wavelength of the electrical signal in the decoupling assembly.

2. An antenna array, characterized by The antenna array comprises: a decoupling assembly, the decoupling assembly is the decoupling assembly as claimed in claim 1; a first antenna comprising a first radiator connected with a first signal source; a second antenna comprising a second radiator connected with a second signal source; wherein the decoupling assembly is connected between the first radiator and the second radiator.

3. The antenna array of claim 2, wherein: The antenna array further comprises a dielectric substrate, the first radiator, the second radiator and the decoupling assembly are all arranged on the dielectric substrate, the dielectric substrate comprises a first surface and a second surface which are parallel to each other and arranged in a third direction, the third direction is orthogonal to the first direction, and the third direction is orthogonal to the second direction; wherein the first coupling line and the second coupling line are both arranged on the first surface, and the first coupling line and the second coupling line are arranged in the first direction; or, the first coupling line is arranged on the first surface, the second coupling line is arranged on the second surface, and the first coupling line and the second coupling line are arranged in a stacking manner in the third direction.

4. The antenna array of claim 3, wherein: The first radiator and the second radiator are both patches; The first antenna further comprises a third connecting part, one end of the third connecting part is coupled with the first radiator away from one end of the first connecting part, the other end of the third connecting part is adapted to be connected with the first signal source; The second antenna further comprises a fourth connecting part, one end of the fourth connecting part is coupled with the second radiator away from one end of the second connecting part, the other end of the fourth connecting part is adapted to be connected with the second signal source.

5. The antenna array of claim 4, wherein: The antenna array further comprises a first equivalent ground and a second equivalent ground, the third connecting part is arranged on the first surface, the first equivalent ground is arranged on the second surface, and at least part of the first equivalent ground and part of the third connecting part are arranged in a stacking manner, the fourth connecting part is arranged on the first surface, the second equivalent ground is arranged on the second surface, and at least part of the second equivalent ground and part of the fourth connecting part are arranged in a stacking manner.

6. The antenna array of claim 4, wherein: There are multiple first radiators, the multiple first radiators are arranged in the second direction, there are multiple second radiators, the multiple second radiators are arranged in the second direction, and there are multiple decoupling assemblies, the decoupling assemblies are connected between the first radiators and the second radiators in a one-to-one correspondence.

7. The antenna array of claim 4, wherein: The antenna array further comprises a reflecting plate, which is arranged in a laminated manner with the dielectric substrate.

8. The antenna array of claim 4, wherein: The first antenna further comprises a third radiator and a fifth connecting part, the third radiator is a patch, the third radiator is arranged on the side of the first radiator away from the first connecting part one by one, and the third radiator is connected with the first signal source through the fifth connecting part; The second antenna further comprises a fourth radiator and a sixth connecting part, the fourth radiator is a patch, the fourth radiator is arranged on the side of the second radiator away from the second connecting part one by one, and the fourth radiator is connected with the second signal source through the sixth connecting part.

9. The antenna array of claim 3, wherein: The first radiator and the second radiator are both dipoles; The first radiator extends along the first direction, and a first input port is arranged on the first radiator, the first input port is adapted to be connected with a signal source, and the distance between the first input port and both ends of the first radiator in the first direction is one quarter of the wavelength of the electrical signal in the signal source; The second radiator extends along the first direction, and a second input port is arranged on the second radiator, the second input port is adapted to be connected with a signal source, and the distance between the second input port and both ends of the first radiator in the first direction is one quarter of the wavelength of the electrical signal in the signal source.

10. A communication device, characterized by: An antenna array as claimed in any one of claims 2-9.

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