Antenna and router

Abstract

The embodiment of the present application discloses an antenna and a router, the antenna comprising a plurality of antenna units, and a first antenna array and a second antenna array, the plurality of antenna units are sequentially connected in a straight line direction, the first antenna array and the second antenna array are respectively arranged on the plurality of antenna units, the first antenna array operates in a high frequency band, and the second antenna array operates in a high frequency and low frequency dual band. The technical solution of the present application can support the demand for high-gain signal radiation in a wide frequency band, achieve 4dBi omnidirectional high gain, and can also provide a multi-polarized antenna combination in the same frequency band, which has stronger adaptability to different users and application environments.

Description

[Technical field]

[0001] The present application relates to the field of wireless communication technology, and in particular to an antenna and a router. [Background technology]

[0002] The main function of antenna arrays is to increase the gain of the antenna, thereby improving the transmission capacity of the antenna. The main antenna array types currently include in-line arrays, vertical arrays, end-fire arrays, wound-rod antennas, log-periodic dipole antenna arrays, and so on. The high-gain antennas of 5G (5th Generation Mobile Communication Technology) and WIFi (wireless communication technology) currently used in gateways, routers, CPE (Customer Premise Equipment), etc. all achieve high gain through in-line arrays. The antenna forms involved are all relatively basic dipoles or orthogonal dipole combinations.

[0003] For the unit oscillators of the array, if high isolation between different antennas is to be achieved, commonly used methods include increasing the physical distance between different antennas, adding decoupling networks, polarization differences, etc.

[0004] Supporting 5G and Wi-Fi 6 (formerly known as IEEE 802.11.ax, the sixth generation of wireless network technology, is the name of the Wi-Fi standard. It is a wireless LAN technology created by the Wi-Fi Alliance based on the IEEE 802.11 standard.) means that there must be two or more antennas in very adjacent frequency bands, such as the 5Gn79 frequency band antenna (4.4-5GHz) and the WIFI 5GHz antenna; or two WIFI 5GHz antennas with the same frequency or two n79 antennas with the same frequency working at the same time to ensure that MIMO (multiple input multiple output) is effective. If multiple antennas in adjacent frequency bands or the same frequency band need to work at the same time, a better correlation coefficient is required. The more important factors that determine the correlation coefficient are isolation, directivity, etc. A common method to solve this problem is to give different antennas a physical interval. [Summary of the invention]

[0005] In view of this, an embodiment of the present application provides an antenna and a router to solve the technical problem in the prior art that the physical distance between antennas is not sufficient, resulting in the isolation being unable to meet the requirements of high-gain antennas.

[0006] In a first aspect, an embodiment of the present application provides an antenna, comprising a plurality of antenna units, and a first antenna array and a second antenna array, the plurality of antenna units being connected in sequence along a straight line, the first antenna array and the second antenna array being arranged on the plurality of antenna units respectively, the first antenna array operating in a high frequency band, and the second antenna array operating in a high frequency and low frequency dual band.

[0007] The solution provided in this embodiment adopts two antenna arrays to support wide-band signal transmission in two working modes.

[0008] In the method disclosed in the embodiment of the present application, the first antenna array includes a first feed source, a first feed line group and a plurality of first dipoles, and the first feed line group connects the first feed source with the plurality of first dipoles;

[0009] The second antenna array includes a second feed source, a second feed line group, a plurality of coupled feed sources and a plurality of second dipoles, the second feed line group connects the second feed source with the plurality of coupled feed sources, the second dipoles are the same in number as the first dipoles and the coupled feed sources and are coupled one-to-one;

[0010] Along the straight line direction, there is a first interval between two adjacent first vibrators, and there is a second interval between two adjacent second vibrators, and the first interval is the same as the second interval.

[0011] Through the solution provided in this embodiment, the antenna can support a very wide frequency band from low frequency band to high frequency band, and realize omnidirectional high-gain signal radiation.

[0012] In the method disclosed in the embodiment of the present application, the antenna unit includes an upper surface metal layer, a lower surface metal layer and an intermediate dielectric layer, and the upper surface metal layer and the lower surface metal layer are respectively attached to two surfaces of the intermediate dielectric layer;

[0013] A second vibrator is provided on the upper surface metal layer;

[0014] The lower surface metal layer is provided with a first oscillator, a coupling feed source, the first feed line group and the second feed line group;

[0015] In a vertical direction perpendicular to the straight line direction, the projection of the first oscillator and the projection of the second oscillator overlap with each other, and the projection of the second oscillator and the projection of the coupling feed source overlap with each other.

[0016] Through the solution provided in this embodiment, a three-layer structure of antenna units is adopted to achieve high isolation between antenna units.

[0017] In the method disclosed in the embodiment of the present application, the second vibrator has a first slot structure and a second slot structure;

[0018] In a vertical direction perpendicular to the straight line direction, the projection of the first slot structure overlaps with the projection of the first oscillator, and the projection of the second slot structure overlaps with the projection of the coupling feed source.

[0019] Through the solution provided in this embodiment, a slot antenna supporting broadband is adopted, so that the antenna unit can have very good resonance between 5 and 6 GHz while maintaining high isolation.

[0020] In the method disclosed in the embodiment of the present application, the first feeder group has a first trunk line and a plurality of first branches, the first trunk line connects the first feed source and the plurality of first branches, each of the antenna units is respectively provided with a first branch line, and the first branch line is connected to the first oscillator;

[0021] The second feeder group has a second trunk line and multiple second branches, the second trunk line connects the second feed source and multiple second branches, and each antenna unit is respectively provided with a second branch line, and the second branch line is connected to the coupling feed source.

[0022] Through the solution provided in this embodiment, two feeder groups are used to connect the elements of the two antenna arrays in series respectively, so that after the antenna units are combined, the polarization inside each antenna unit can still be guaranteed.

[0023] In the method disclosed in the embodiment of the present application, the number of the antennas is two, the two antennas are located in the same plane, and the distance between the two antennas is the same as the first interval.

[0024] The solution provided by this embodiment can meet the requirements for antenna arrangement in a narrow space in a planar direction.

[0025] In the method disclosed in the embodiment of the present application, the number of the antennas is two, the planes where the two antennas are located are perpendicular to each other, and the distance between the two antennas is the same as the first interval.

[0026] The solution provided by this embodiment can meet the antenna layout requirements in a three-dimensional space.

[0027] In the method disclosed in the embodiment of the present application, the number of the antennas is three, the planes where the three antennas are located are parallel to each other, and the interval between two adjacent antennas is the same as the first interval.

[0028] The solution provided by this embodiment can meet the requirements for antenna arrangement in a narrow space in the vertical direction.

[0029] In a second aspect, an embodiment of the present application provides a router, including: the antenna as described in the first aspect.

[0030] Compared with the prior art, this technical solution has at least the following beneficial effects:

[0031] The antenna and router disclosed in the embodiments of the present application can support the demand for high-gain signal radiation in a wide frequency band, achieve an omnidirectional high gain of 4dBi, and can also provide a multi-polarized antenna combination in the same frequency band, which has stronger adaptability to different users and application environments.

Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 is a schematic diagram of the antennas provided in the embodiment of the present application arranged along a straight line;

[0034] Figure 2 It is a schematic diagram of the structure of each antenna array in the antenna provided in the embodiment of the present application;

[0035] Figure 3 It is a schematic diagram of the spacing relationship between the oscillators in the antenna provided in the embodiment of the present application;

[0036] Figure 4 is a schematic diagram of the structure of the antenna provided in an embodiment of the present application;

[0037] Figure 5 It is a structural schematic diagram of the second oscillator in the antenna provided in an embodiment of the present application;

[0038] Figure 6 It is a structural schematic diagram of each feeder group in the antenna provided in the embodiment of the present application;

[0039] Figure 7 is a schematic diagram of the arrangement of two antennas provided in an embodiment of the present application;

[0040] Figure 8 This is a schematic diagram of an arrangement when the number of antennas provided in the embodiment of the present application is three;

[0041] Fig. 9 This is another arrangement diagram when the number of antennas provided in the embodiment of the present application is three.

[0042] Reference numerals:

[0043] 1-antenna unit; 2-first antenna array; 3-second antenna array; 4-first feed source; 5-first feed line group; 6-first oscillator; 7-second feed source; 8-second feed line group; 9-coupling feed source; 10-second oscillator; 11-upper surface metal layer; 12-lower surface metal layer; 13-middle dielectric layer; 14-first slot structure; 15-second slot structure; 16-first trunk line; 17-first branch line; 18-second trunk line; 19-second branch line; L-straight direction; V-vertical direction; d1-first interval; d2-second interval; S1-first spacing; S2-second spacing. [Specific implementation method]

[0044] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0045] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0046] An embodiment of the present application discloses an antenna. The antenna of this embodiment is suitable for an application network environment that supports 5G and WIFI6. It has high isolation and very small self-mentioned. It can have a very good correlation coefficient and can bring obvious effects of high bandwidth and high gain to the transmitted signal. There are two polarizations in the high frequency band it supports, which brings beneficial effects to the improvement of actual user experience.

[0047] Specifically, if Figure 1 and Figure 2 As shown, the antenna of this embodiment includes multiple antenna units 1, and a first antenna array 2 and a second antenna array 3. The multiple antenna units 1 are connected in sequence along a straight line direction L. The first antenna array 2 and the second antenna array 3 are arranged on the multiple antenna units 1 respectively. The first antenna array 2 works in a high frequency band, and the second antenna array 3 works in a high frequency and low frequency dual band. Among them, each antenna unit 1 is a high-gain antenna, which is connected in series end to end along the straight line direction L. The direction of the polarized oscillator in each antenna unit 1 is along the straight line direction L, forming a straight line array with equal amplitude and phase.

[0048] The antenna of this embodiment adopts two antenna arrays and supports wide-band signal transmission in two working modes. The first antenna array 2 adopts a high-band working mode, and the second antenna array 3 adopts a high-band plus a low-band dual-band working mode, so that the antenna can support a wide frequency band from low-band to high-band while achieving high gain, which is conducive to achieving long-distance signal transmission and short-distance signal radiation at the same time.

[0049] like Figure 2 As shown, in the antenna of this embodiment, the first antenna array 2 includes a first feed source 4, a first feed line group 5 and a plurality of first dipoles 6, and the first feed line group 5 connects the first feed source 4 with the plurality of first dipoles 6; the second antenna array 3 includes a second feed source 7, a second feed line group 8, a plurality of coupling feed sources 9 and a plurality of second dipoles 10, and the second feed line group 8 connects the second feed source 7 with the plurality of coupling feed sources 9, and the second dipoles 10 are the same in number and are coupled one-to-one with the first dipoles 6 and the coupling feed sources 9. Figure 3 As shown, along the straight line direction L, there is a first interval d1 between two adjacent first oscillators 6, and there is a second interval d2 between two adjacent second oscillators 10. The first interval d1 is the same as the second interval d2. The first interval d1 and the second interval d2 can be adjusted according to actual needs, and the theoretical value is one wavelength.

[0050] The antenna of this embodiment enables the antenna to support a wide frequency band from low frequency band to high frequency band, and realizes omnidirectional high-gain signal radiation. For the first antenna array 2, the signal access of the coaxial line or other transmission line is carried out through the first feeding source 4, the first feeder group 5 is a conventional coplanar waveguide (with ground), and the two first oscillators 6 are high-frequency monopole antennas. The two first oscillators 6 are connected by Figure 1 The two antenna units 1 shown in the figure are arranged along the straight line direction L to form a second antenna unit 1 array, achieving an omnidirectional high gain of 4dBi. For the second antenna array 3, the signal access of the coaxial line or other transmission line is carried out through the second feed source 7. The second feed line group 8 is a conventional coplanar waveguide, combined with Figure 1 , two coupled feed sources 9 and two second oscillators 10 together form a coupled-fed wideband antenna two-antenna unit 1 array, which can support a wide frequency band from low frequency band to high frequency band, and achieve 4dBi omnidirectional high gain. For high frequency band, since the first antenna array 2 and the second antenna array 3 are both supported, and the polarization directions of the two antenna arrays are different, this provides the terminal with the possibility of two polarization direction performances in the same frequency band, and it will have stronger adaptability to different users and different environments.

[0051] like Figure 4As shown, in the antenna of this embodiment, the antenna unit 1 includes an upper surface metal layer 11, a lower surface metal layer 12 and an intermediate dielectric layer 13. The upper surface metal layer 11 and the lower surface metal layer 12 are respectively attached to the two surfaces of the intermediate dielectric layer 13. The metal used in the upper surface metal layer 11 and the lower surface metal layer 12 can be copper, gold, aluminum, etc., and the medium used in the intermediate dielectric layer 13 can be FR4, PU (Polyurethane), ABS (Acrylonitrile butadieneStyrene copolymers, acrylonitrile-butadiene-styrene copolymers), etc. Figure 5 As shown, a second vibrator 10 is provided on the upper surface metal layer 11. Figure 6 As shown, a first oscillator 6, a coupling feed source 9, a first feed line group 5 and a second feed line group 8 are provided on the lower surface metal layer 12. Figure 2 , Figure 5 and Figure 6 In the vertical direction V perpendicular to the straight line direction L, the projection of the first oscillator 6 and the projection of the second oscillator 10 overlap with each other, and the projection of the second oscillator 10 and the projection of the coupling feed source 9 overlap with each other.

[0052] The antenna of this embodiment adopts a three-layer structure of antenna units 1 to achieve high isolation between antenna units 1. Each antenna unit 1 is an antenna with built-in isolation, and the isolation of the antenna is improved by combining polarized antennas and slot broadband antennas, so that high isolation can be achieved in the working frequency band (5-6 GHz) and adjacent frequency bands.

[0053] like Figure 5 As shown, in the antenna of this embodiment, the second oscillator 10 has a first slot structure 14 and a second slot structure 15. Figure 2 and Figure 5 In the vertical direction V perpendicular to the straight line direction L, the projection of the first slot structure 14 overlaps with the projection of the first oscillator 6, and the projection of the second slot structure 15 overlaps with the projection of the coupling feed source 9.

[0054] The antenna of this embodiment adopts a slot antenna supporting broadband, so that the antenna unit 1 can have very good resonance between 5 and 6 GHz while maintaining high isolation.

[0055] like Figure 6As shown, in the antenna of this embodiment, the first feed line group 5 has a first trunk line 16 and multiple first branches 17, the first trunk line 16 is connected to the first feeding source 4 and the multiple first branches 17, each antenna unit 1 is respectively arranged with a first branch line 17, and the first branch line 17 is connected to the first oscillator 6; the second feed line group 8 has a second trunk line 18 and multiple second branches 19, the second trunk line 18 is connected to the second feeding source 7 and the multiple second branches 19, each antenna unit 1 is respectively arranged with a second branch line 19, and the second branch line 19 is connected to the coupling feed source 9.

[0056] The antenna of this embodiment uses two feeder groups to connect the elements of the two antenna arrays in series respectively, so that the polarization inside each antenna unit 1 can still be guaranteed after the antenna units 1 are combined.

[0057] like Figure 7 As shown, in the antenna of this embodiment, there are two antennas, and the two antennas are located in the same plane; among the two antennas, the first spacing S1 of each first oscillator 6 is the same as the first spacing d1, and the second spacing S2 of each second oscillator 10 is the same as the second spacing d2.

[0058] The antenna of this embodiment can meet the requirements for antenna arrangement in a narrow space in a plane direction.

[0059] like Figure 8 As shown, in the antenna of this embodiment, there are two antennas, and the planes where the two antennas are located are perpendicular to each other; among the two antennas, the first spacing S1 of each first oscillator 6 is the same as the first spacing d1, and the second spacing S2 of each second oscillator 10 is the same as the second spacing d2.

[0060] The antenna of this embodiment can meet the requirements of antenna arrangement in a three-dimensional space.

[0061] like Fig. 9 As shown, in the antenna of this embodiment, the number of antennas is three, and the planes where the three antennas are located are parallel to each other; among two adjacent antennas, the first spacing S1 of each first oscillator 6 is the same as the first spacing d1, and the second spacing S2 of each second oscillator 10 is the same as the second spacing d2.

[0062] The antenna of this embodiment can meet the requirements of antenna arrangement in a narrow space in the vertical direction V.

[0063] The embodiment of the present application also discloses a router, including the antenna disclosed in the embodiment of the present application.

[0064] The antenna and router disclosed in the embodiments of the present application can support the demand for high-gain signal radiation in a wide frequency band, achieve an omnidirectional high gain of 4dBi, and can also provide a multi-polarized antenna combination in the same frequency band, which has stronger adaptability to different users and application environments.

[0065] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An antenna, characterized in that: The antenna includes a plurality of antenna units, and a first antenna array and a second antenna array, the plurality of antenna units are sequentially connected along a straight line direction, the first antenna array and the second antenna array are respectively arranged on the plurality of antenna units, the first antenna array operates in a high frequency band, and the second antenna array operates in a high frequency and low frequency dual band; The first antenna array includes a first feed source, a first feed line group and a plurality of first dipoles, and the first feed line group connects the first feed source with the plurality of first dipoles; The second antenna array includes a second feed source, a second feed line group, a plurality of coupled feed sources and a plurality of second dipoles, the second feed line group connects the second feed source with the plurality of coupled feed sources, the second dipoles are the same in number as the first dipoles and the coupled feed sources and are coupled one-to-one; Along the straight line direction, there is a first interval between two adjacent first vibrators, and there is a second interval between two adjacent second vibrators, and the first interval is the same as the second interval; The first antenna array and the second antenna array have different polarization directions.

2. The antenna according to claim 1, characterized in that The antenna unit comprises an upper surface metal layer, a lower surface metal layer and an intermediate dielectric layer, wherein the upper surface metal layer and the lower surface metal layer are respectively attached to two surfaces of the intermediate dielectric layer; A second vibrator is provided on the upper surface metal layer; The lower surface metal layer is provided with a first oscillator, a coupling feed source, the first feed line group and the second feed line group; In a vertical direction perpendicular to the straight line direction, the projection of the first oscillator and the projection of the second oscillator overlap with each other, and the projection of the second oscillator and the projection of the coupling feed source overlap with each other.

3. The antenna according to claim 2, characterized in that: The second vibrator has a first slot structure and a second slot structure; In a vertical direction perpendicular to the straight line direction, the projection of the first slot structure overlaps with the projection of the first oscillator, and the projection of the second slot structure overlaps with the projection of the coupling feed source.

4. The antenna according to claim 1, characterized in that: The first feeder group comprises a first trunk line and a plurality of first branches, the first trunk line connects the first feed source and the plurality of first branches, each antenna unit is respectively provided with a first branch line, and the first branch line is connected to the first oscillator; The second feeder group has a second trunk line and multiple second branches, the second trunk line connects the second feed source and multiple second branches, and each antenna unit is respectively provided with a second branch line, and the second branch line is connected to the coupling feed source.

5. The antenna according to any one of claims 1 to 4, characterized in that: The number of the antennas is two, and the two antennas are located in the same plane; In the two antennas, the first interval between the first oscillators is the same as the first interval, and the second interval between the second oscillators is the same as the second interval.

6. The antenna according to any one of claims 1 to 4, characterized in that: The number of the antennas is two, and the planes where the two antennas are located are perpendicular to each other; In the two antennas, the first interval between the first oscillators is the same as the first interval, and the second interval between the second oscillators is the same as the second interval.

7. The antenna according to any one of claims 1 to 4, characterized in that: The number of the antennas is three, and the planes on which the three antennas are located are parallel to each other; In the two adjacent antennas, the first interval between the first oscillators is the same as the first interval, and the second interval between the second oscillators is the same as the second interval.

8. A router, characterized in that: include: An antenna as claimed in any one of claims 1 to 7.

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