Network equipment

Abstract

The invention discloses network equipment, and relates to the field of wireless local area network equipment. The invention aims to improve the signal strength of network equipment. According to the specific scheme, the network equipment comprises a first radio frequency front-end module, a second radio frequency front-end module, a transmitting link, a receiving link, a first antenna and a second antenna. The transmitting link comprises a first power divider, and the first radio frequency front-end module and the second radio frequency front-end module are both connected with the first power divider. The receiving link comprises a second power divider, and the first radio frequency front-end module and the second radio frequency front-end module are connected with the second power divider. The first radio frequency front-end module is electrically connected with the first antenna, and the second radio frequency front-end module is electrically connected with the second antenna. The phases of electromagnetic waves radiated by the first antenna and the second antenna are equal. The network equipment does not need to be provided with a phase shift chip or a circuit module, and the architecture is simplified. Under the condition that the coverage angle is not sacrificed, the through-wall signal can be improved by more than 3dBi, and the method can be applied to scenes such as FTTR and the like.

Description

Technical Field

[0001] The present application relates to the field of wireless local area network equipment, and in particular to a network device. Background Art

[0002] With the rapid development of communications technology, wireless local area networks (WLANs) have become widely used. The signal strength of WLANs directly impacts user experience. For example, in dormitories, hotels, hospitals, and other environments, WLAN signal strength directly affects the signal's ability to penetrate walls. Poor wall penetration results in a narrow coverage area and a poor user experience.

[0003] Therefore, the present application provides a network device with high signal strength. Summary of the Invention

[0004] The present application provides a network device, aiming to improve the signal strength of the network device.

[0005] To achieve the above objectives, this application adopts the following technical solutions.

[0006] In the first aspect, the present application provides a network device. The network device includes a first RF front-end module, a second RF front-end module, a transmitting link, a receiving link, a substrate and multiple antennas. The transmitting link includes a first power divider, and the first RF front-end module and the second RF front-end module are both connected to the first power divider. The receiving link includes a second power divider, and the first RF front-end module and the second RF front-end module are both connected to the second power divider. The multiple antennas are all arranged on the substrate, and the multiple antennas include a first antenna and a second antenna whose dielectric waveguide wavelengths corresponding to the center frequencies are both λ. The first RF front-end module is electrically connected to the first antenna, and the second RF front-end module is electrically connected to the second antenna.

[0007] In this way, with the first and second RF front-end modules working together, the first and second antennas, which have the same center frequency, transmit downlink signals through the same power splitter, and the first and second antennas transmit uplink signals through the same power splitter. This improves the signal strength radiated by the first and second antennas, helping to enhance the wall penetration performance of network device signals.

[0008] In combination with the first aspect, in some achievable embodiments, the main lobe direction of the first antenna radiation is parallel to the main lobe direction of the second antenna radiation.

[0009] This allows the first and second antennas to have higher signal strength in the main lobe direction of the radiation emitted by either antenna. Furthermore, because the first and second antennas transmit downlink signals through the same power splitter, and because the first and second antennas transmit uplink signals through the same power splitter, the signals radiated by the first and second antennas can cover a wider area, improving the antenna assembly's signal coverage and enhancing its anti-interference capabilities.

[0010] In combination with the first aspect, in some implementable embodiments, a vertical projection of the first antenna on the substrate and a vertical projection of the second antenna on the substrate are symmetrical about a reference line.

[0011] In this way, the main lobe direction of the first antenna is parallel to the main lobe direction of the second antenna. In this main lobe direction, the first antenna and the second antenna have the same phase, which is beneficial to improving signal strength.

[0012] In conjunction with the first aspect, in some achievable embodiments, the network device further includes: a first transmission line and a second transmission line. The first RF front-end module is electrically connected to a feed end of the first antenna via the first transmission line, and the second RF front-end module is electrically connected to a feed end of the second antenna via the second transmission line.

[0013] In this way, the first RF front-end module transmits signals to the first antenna via the first transmission line, and the second RF front-end module transmits signals to the second antenna via the second transmission line.

[0014] In combination with the first aspect, in some feasible embodiments, the first antenna is a monopole antenna.

[0015] In this way, the network device is suitable for the first antenna of the monopole antenna, which can also improve the signal strength radiated by the network device and optimize the wall penetration performance of the signal.

[0016] In conjunction with the first aspect, in some achievable embodiments, the first antenna includes a first monopole element, a second monopole element, and a third power divider. The third power divider includes a first conductive end, a second conductive end, and a third conductive end. The first conductive end is electrically connected to the first monopole element, the second conductive end is electrically connected to the second monopole element, and the third conductive end serves as a feed end for the first antenna.

[0017] In this way, both the first monopole element and the second monopole element can radiate electromagnetic waves, making the first antenna have directional radiation characteristics. The network device including the first antenna has advantages such as high signal strength, wide coverage area, and excellent wall penetration performance.

[0018] In combination with the first aspect, in some implementable manners, an arrangement direction of the feeding end of the first antenna and the feeding end of the second antenna is perpendicular to an arrangement direction of the first conductive end and the second conductive end.

[0019] In this way, the beam directions of the first antenna and the second antenna are parallel, and the arrangement direction of the feeding end of the first antenna and the feeding end of the second antenna is parallel to the beam direction of the first antenna.

[0020] In conjunction with the first aspect, in some possible implementations, the network device further includes: a first reflector and a second reflector. The first reflector and the second reflector are both disposed on the substrate. The feed end of the first antenna, the first reflector, the second reflector, and the feed end of the second antenna are arranged along a first direction.

[0021] In this way, the first reflector helps improve the quality and stability of signal reception at the first antenna, increasing the antenna's communication range and data transmission speed, and increasing the gain of the first antenna. The second reflector helps improve the quality and stability of signal reception at the second antenna, increasing the communication range and data transmission speed, and increasing the gain of the second antenna. The main lobe direction of the first antenna is the direction from the first feed end away from the second feed end, while the main lobe direction of the second antenna is the direction from the second feed end away from the first feed end. The arrangement of the first and second reflectors can increase gain while also improving the antenna's directivity.

[0022] In conjunction with the first aspect, in some achievable embodiments, along the thickness direction of the substrate, the size of the first reflector is greater than or equal to 0.5 times λ. Along the first direction, the distance from the first reflector to the feeding end of the first antenna is 0.25λ.

[0023] In this way, the first reflector can further increase the communication distance and data transmission speed of the first antenna. The electromagnetic waves radiated by the first antenna are reflected by the first reflector and then transmitted back to the first feeder. The electromagnetic waves transmitted back to the first feeder are in phase with the electromagnetic waves not reflected by the first reflector, which can increase the gain of the electromagnetic waves.

[0024] In conjunction with the first aspect, in some achievable embodiments, the difference between the length of the first transmission line and the length of the second transmission line is an integer multiple of λ. The distance between the feed end of the first antenna and the feed end of the second antenna is an integer multiple of λ. Alternatively, the difference between the length of the first transmission line and the length of the second transmission line is an odd multiple of 0.5λ, and the distance between the feed end of the first antenna and the feed end of the second antenna is an odd multiple of 0.5λ.

[0025] In this way, the electromagnetic waves radiated by the first antenna and the electromagnetic waves radiated by the second antenna are equal in phase. The electromagnetic waves radiated by the first antenna and the electromagnetic waves radiated by the second antenna are superimposed on each other, thereby improving the wall penetration capability.

[0026] In conjunction with the first aspect, in some achievable embodiments, when the difference between the length of the first transmission line and the length of the second transmission line is an integer multiple of λ, and the distance between the feeding end of the first antenna and the feeding end of the second antenna is an integer multiple of λ, the distance between the first conductive end and the second conductive end is an integer multiple of λ. When the difference between the length of the first transmission line and the length of the second transmission line is an odd multiple of 0.5λ, and the distance between the feeding end of the first antenna and the feeding end of the second antenna is an odd multiple of 0.5λ, the distance between the first conductive end and the second conductive end is an odd multiple of 0.5λ.

[0027] In the above two cases, the angular electromagnetic waves in the same direction as the line connecting the first monopole oscillator and the second monopole oscillator cancel each other out of phase, forming a beam null point.

[0028] In combination with the first aspect, in some implementable manners, an arrangement direction of the feeding end of the first antenna and the feeding end of the second antenna is parallel to an arrangement direction of the first conductive end and the second conductive end.

[0029] In this way, the beam directions of the first antenna and the second antenna are parallel, and the arrangement direction of the feeding end of the first antenna and the feeding end of the second antenna is parallel to the beam direction of the first antenna.

[0030] In combination with the first aspect, in some implementable manners, the difference between the length of the first transmission line and the length of the second transmission line is an integer multiple of λ, and the distance between the feeding end of the first antenna and the feeding end of the second antenna is 0.7λ to 0.8λ.

[0031] In this way, the electric fields of the electromagnetic waves radiated by the first antenna and the electromagnetic waves radiated by the second antenna are superimposed in phase, and the radiation is enhanced.

[0032] In conjunction with the first aspect, in some possible implementations, the first antenna is a dipole antenna. The network device further includes: a third reflector and a fourth reflector. The third reflector and the fourth reflector are both disposed on the substrate, and the feed end of the first antenna, the third reflector, the fourth reflector, and the feed end of the second antenna are arranged along a first direction.

[0033] In this way, the third reflector can reflect the electromagnetic waves radiated by the first antenna, making the beam radiated by the dipole antenna directional. Similarly, the fourth reflector makes the beam radiated by the second antenna directional. In this case, the dipole antenna is also suitable for the network device provided by this application.

[0034] In conjunction with the first aspect, in some achievable embodiments, the network device further includes: a first director and a second director. The first director and the second director are both disposed on the substrate, and the first director, the feeding end of the first antenna, the feeding end of the second antenna, and the second director are arranged along a first direction.

[0035] In this way, the first director converges the electromagnetic waves of the first antenna, increasing the consistency of the first antenna's beam and improving the directivity of the first antenna's radiation pattern. Similarly, the second director has the same effect on the second antenna. Thus, the first and second directors increase the gain of the first and second antennas.

[0036] In combination with the first aspect, in some implementable manners, the difference between the length of the first transmission line and the length of the second transmission line is an integer multiple of λ, and the distance from the feeding end of the first antenna to the feeding end of the second antenna is an integer multiple of λ.

[0037] In this way, the electric fields of the electromagnetic waves radiated by the first antenna and the electromagnetic waves radiated by the second antenna are superimposed in phase, and the radiation is enhanced.

[0038] In a second aspect, the present application provides an antenna assembly. The antenna assembly includes a first antenna, a first transmission line, a second antenna, a second transmission line, a substrate, a first reflector, and a second reflector. The dielectric waveguide wavelength corresponding to the center frequencies of the first antenna and the second antenna is both λ. One end of the first transmission line is used to connect to the feed end of the first antenna, and the other end is used to connect to the first RF front-end module. One end of the second transmission line is used to connect to the feed end of the second antenna, and the other end is used to connect to the second RF front-end module. The first antenna, the second antenna, the first reflector, and the second reflector are all arranged on the substrate. The feed end of the first antenna, the first reflector, the second reflector, and the feed end of the second antenna are arranged along a first direction. The total length of the length from the feed end of the first antenna to the feed end of the second antenna and the length of the first transmission line differs from the length of the second transmission line by an integer multiple of λ.

[0039] In combination with the second aspect, in some feasible embodiments, the first antenna is a monopole antenna.

[0040] In conjunction with the second aspect, in some achievable embodiments, the first antenna includes a first monopole element, a second monopole element, and a third power divider. The third power divider includes a first conductive end, a second conductive end, and a third conductive end. The first conductive end is electrically connected to the first monopole element, the second conductive end is electrically connected to the second monopole element, and the third conductive end serves as a feed end for the first antenna.

[0041] In combination with the second aspect, in some achievable embodiments, along the thickness direction of the substrate, the size of the first reflector is greater than or equal to 0.5 times λ, and along the first direction, the distance from the first reflector to the first end is 0.25λ.

[0042] In combination with the second aspect, in some implementable manners, an arrangement direction of the feeding end of the first antenna and the feeding end of the second antenna is parallel to an arrangement direction of the first conductive end and the second conductive end.

[0043] In combination with the second aspect, in some feasible embodiments, the first antenna is a dipole antenna.

[0044] In conjunction with the second aspect, in some achievable embodiments, the antenna assembly further includes a first director and a second director. The first director, the feeding end of the first antenna, the feeding end of the second antenna, and the second director are arranged along a first direction.

[0045] In combination with the second aspect, in some implementable manners, along a direction perpendicular to the first direction, a size of the third reflector is greater than or equal to 0.5 times λ.

[0046] Regarding the beneficial effects of the second aspect, reference may be made to the description of any optional implementation in the first aspect, which will not be repeated here. Based on the implementations provided in the above aspects, this application can also be further combined to provide more implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A structural diagram of a communication system.

[0048] Figure 2 A schematic diagram of the structure of the network device provided in an embodiment of the present application.

[0049] Figure 3 A circuit diagram of a network device provided in an embodiment of the present application.

[0050] Figure 4 A schematic structural diagram of an antenna assembly provided in an embodiment of the present application.

[0051] Figure 5 for Figure 4 The radiation patterns of the two antennas in .

[0052] Figure 6 A schematic structural diagram of another antenna assembly provided in an embodiment of the present application.

[0053] Figure 7 for Figure 6 The radiation patterns of the two antennas in .

[0054] Figure 8A schematic structural diagram of another antenna assembly provided in an embodiment of the present application.

[0055] Figure 9 A structural schematic diagram of another antenna assembly provided in an embodiment of the present application.

[0056] Figure 10 A schematic structural diagram of another antenna assembly provided in an embodiment of the present application.

[0057] Figure 11 The embodiments of this application include Figure 4 Directional pattern of a network device with an antenna assembly.

[0058] Figure 12 To include Figure 4 A schematic diagram of a deployment of a network device with antenna components shown in FIG.

[0059] Figure 13 To include Figure 9 A schematic diagram of a deployment of a network device with antenna components shown in FIG.

[0060] In the figure: 1-first room; 2-second room; 10-network equipment; 11-single board; 12-housing structure; 100-antenna assembly; 230-transmitting link; 240-receiving link; 210-first RF front-end module; 220-second RF front-end module; 231-first power splitter; 241-second power splitter; 110-first antenna; 101-first feeding end; 111-first monopole oscillator; 112-second monopole Pole oscillator; 113-third power divider; 301-first conductive end; 302-second conductive end; 303-third conductive end; 120-second antenna; 102-second feeding end; 130-substrate; 201-first reflector; 202-second reflector; 310-first transmission line; 320-second transmission line; 203-third reflector; 204-fourth reflector; 205-first director; 206-second director. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0062] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0063] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0064] Antenna return loss: This can be understood as the ratio of the signal power reflected back to the antenna port by the antenna circuit to the antenna port's transmitted power. The smaller the reflected signal, the larger the signal radiated from the antenna into space, and the greater the antenna's radiation efficiency. The larger the reflected signal, the smaller the signal radiated from the antenna into space, and the lower the antenna's radiation efficiency.

[0065] Antenna return loss can be expressed using the S11 parameter, a type of S parameter. S11 represents the reflection coefficient and can characterize the antenna's transmission efficiency.

[0066] In some embodiments, the S11 graph can be understood as a schematic diagram for representing the resonance generated by the antenna. In some embodiments, the resonance shown in the S11 graph below -10dB can be understood as the resonant frequency range generated by the antenna. The S11 parameter is usually a negative number. The smaller the S11 parameter, the smaller the antenna return loss and the less energy reflected back by the antenna itself, which means that more energy actually enters the antenna and the higher the antenna system efficiency. The larger the S11 parameter, the greater the antenna return loss and the lower the antenna system efficiency.

[0067] Isolation refers to the ratio of the signal received by one antenna to the signal from the transmitting antenna. Isolation is a physical quantity used to measure the degree of antenna mutual coupling. Assuming two antennas form a two-port network, the isolation between the two antennas is the S21 and S12 parameters between the antennas. Antenna isolation can be expressed using the S21 and S12 parameters, which are also types of S parameters. These parameters are typically negative. Smaller S21 and S12 parameters indicate greater isolation and less mutual coupling between antennas. Larger S21 and S12 parameters indicate less isolation and greater mutual coupling between antennas. Antenna isolation depends on factors such as the antenna radiation pattern, the spatial distance between the antennas, and antenna gain.

[0068] Communication frequency band / operating frequency band: Regardless of the type of antenna, it always operates within a certain frequency range (bandwidth). For example, an antenna that supports the B40 frequency band has an operating frequency band of 2300MHz to 2400MHz, or in other words, the antenna's operating frequency band includes the B40 frequency band.

[0069] The resonant frequency range or resonant frequency band and the operating frequency band may be the same or may partially overlap. In one embodiment, one or more resonant frequency bands of the antenna may overlap one or more operating frequency bands of the antenna.

[0070] It should be noted that in engineering, an S11 value of -10dB is generally used as a standard. When the S11 value of an antenna is less than -10dB, it can be considered that the antenna can work normally, or the antenna can be considered to have good transmission efficiency.

[0071] Coupling: can be understood as direct coupling or indirect coupling, and "coupling connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be referred to as "electrical connection", which is understood as the physical contact and electrical conduction between components; it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as printed circuit boards (PCBs), copper foils or wires that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically connected in an airless / non-contact manner. In one embodiment, indirect coupling can also be referred to as capacitive coupling, for example, by coupling between the gap between two conductive parts to form an equivalent capacitor to achieve signal transmission.

[0072] Antenna pattern: Also known as radiation pattern. This refers to the graph of the relative field strength (normalized modulus) of the antenna's radiation field as it varies with direction at a given distance from the low-frequency antenna. It is usually represented by two mutually perpendicular plane patterns passing through the antenna's direction of maximum radiation.

[0073] Antenna patterns typically have multiple radiation beams. The beam with the strongest radiation intensity is called the main lobe, while the remaining beams are called side lobes. Among the side lobes, those in the opposite direction of the main lobe are also called back lobes.

[0074] dB: decibel, a logarithmic concept with a base of ten. The decibel is only used to evaluate the proportional relationship between one physical quantity and another; it itself has no physical dimension. For every 10-fold increase in the ratio between two quantities, the difference between them can be expressed as 10 decibels. For example: A="100", B="10", C="5", D="1", then A / D = 20dB; B / D = 10dB; C / D = 7dB; B / C = 3dB. In other words, a 10dB difference between two quantities is a 10-fold difference, a 20dB difference is a 100-fold difference, and so on. A 3dB difference is a 2-fold difference between the two quantities.

[0075] dBi: Often mentioned together with dBd. dBi and dBd are units of power gain. Both are relative values, but they are referenced to different parameters. The reference for dBi is an omnidirectional antenna; the reference for dBd is a dipole. It is generally believed that dBi and dBd represent the same gain, with the value expressed in dBi being 2.15 dBi greater than the value expressed in dBd. For example, for an antenna with a gain of 16 dBd, its gain, when converted to dBi, is 18.15 dBi. Generally, the decimal places are ignored and the value is 18 dBi.

[0076] Polarization: The polarization direction of an antenna unit refers to the direction of the electric field vector of the electromagnetic wave in the direction of maximum radiation of the antenna unit. Common antenna unit polarization modes include vertical polarization, horizontal polarization, elliptical polarization, and circular polarization. If the electric field direction remains parallel to the earth during the propagation of the electromagnetic wave radiated by the antenna unit, the polarization mode of the antenna unit is horizontal polarization; if the electric field direction remains perpendicular to the earth during the propagation of the electromagnetic wave radiated by the antenna unit, the polarization mode of the antenna unit is vertical polarization; if the trajectory of the end of the electric field vector over time during the propagation of the electromagnetic wave radiated by the antenna unit is an ellipse, the polarization mode of the antenna unit is elliptical.

[0077] Electric plane (E-Plane): Also known as the E-plane, for linearly polarized antennas, the electric plane is the plane containing the electric field vector (also known as the E aperture) and the direction of maximum radiation. The electric field, or "E" plane, determines the polarization, or direction, of the radio waves. For vertically polarized antennas, the E-plane typically coincides with the vertical / elevation plane. For horizontally polarized antennas, the E-plane typically coincides with the horizontal / azimuth plane. The E-plane and H-plane should be 90 degrees apart.

[0078] Magnetic plane (H-Plane): Also known as the H-plane, the magnetic plane is the plane containing the magnetic field vector (also known as the H-aperture) and the direction of maximum radiation. For linearly polarized antennas, the magnetic field, or "H" plane, is at right angles to the "E" plane. For vertically polarized antennas, the H-plane typically coincides with the horizontal / azimuth plane. For horizontally polarized antennas, the H-plane typically coincides with the vertical / elevation plane. Working bandwidth: The working bandwidth of an antenna unit refers to the frequency range in which it works effectively. In engineering, the frequency band where the S11 parameter is less than -10dB or less than -5dB is usually called the working bandwidth.

[0079] The feed section, or feed end, is the combination of all components of an antenna used for both receiving and transmitting radio frequency waves. In the case of a receiving antenna, the feed section can be considered the portion of the antenna from the first amplifier to the front-end transmitter. In a transmitting antenna, the feed section can be considered the section after the last power amplifier.

[0080] Medium wavelength: Due to the existence of the medium, the electromagnetic parameters of the medium (for example, dielectric constant and magnetic permeability) are different from those in a vacuum. The propagation speed of electromagnetic waves in the medium is different from that in a vacuum, that is, its wavelength is different. The propagation wavelength in the medium is the medium wavelength.

[0081] Figure 1 FIG1 is a schematic diagram of the structure of a communication system, which may also be called an optical transmission network. The communication system includes one or more network devices 10, which are used to communicate with user terminals.

[0082] A terminal may also be called terminal equipment, user equipment (UE), mobile station (MS), mobile terminal (MT) or terminal unit (STA).

[0083] In some embodiments, the terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a personal communication service (PCS) phone, a desktop computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in a smart home, etc.

[0084] The network device 10 may be a routing and forwarding device with optical communication capabilities, such as a router or a switch. The network device 10 may also be a broadband network gateway (BNG) or a broadband remote access server (BRAS) with optical communication capabilities.

[0085] The terminal can access the server using the network device 10. Figure 1 In the first room 1 shown, a user can use a terminal to establish a communication connection with a network device 10 using wireless local area network (WLAN) technology, so that the terminal can send a data packet to a server. Figure 1 The same applies to the second room 2.

[0086] In some possible scenarios, the terminal may also use optical communication technology and radio access network (RAN) equipment ( Figure 1(not shown) establishes a communication connection and accesses the server.

[0087] The network device 10 is connected to the server via a wireless or wired manner. The embodiment of the present application does not limit the number of terminal devices, network devices 10 and servers included in the optical communication network.

[0088] For example, the present application may be applied to a fiber-to-the-room (FTTR) scenario.

[0089] This embodiment uses a whole-house fiber optic scenario as an example to illustrate the bandwidth allocation method for the optical communication network provided by this application. This whole-house fiber optic scenario can be implemented using FTTR technology. FTTR refers to a networking technology that replaces network cables with optical fiber, lays optical fiber to every room, and interconnects with the home gateway by deploying optical network equipment 10. Combined with dual-band Wi-Fi, this ensures full-house network coverage.

[0090] Illustratively, the network device 10 includes an antenna assembly 100 , which is used to receive and transmit signals.

[0091] The embodiment of the present application does not limit the usage scenario of the network device 10. The network device 10 can be used as an external antenna pole sleeve or a built-in gateway.

[0092] Figure 2 This is a schematic diagram of the structure of the network device 10 provided in the embodiment of the present application. Figure 2 The network device 10 includes a single board 11 and an antenna assembly 100, and the single board 11 is signal-connected to the antenna assembly 100. The single board 11 receives or sends signals through the antenna assembly 100.

[0093] Exemplarily, the single board 11 is connected to the antenna assembly 100 through a transmission line, and the single board 11 transmits signals to the antenna assembly 100 through the transmission line.

[0094] In some embodiments, the single board 11 may also be referred to as a main board. The single board 11 carries electronic components, for example, a radio frequency chip, etc. Exemplarily, the single board 11 includes structures such as a radio frequency front-end module.

[0095] Figure 2 In the example of FIG, the network device 10 further includes a housing structure 12, and the board 11 is located inside the housing structure 12. The antenna assembly 100 is located outside the housing structure 12, and the antenna assembly 100 may be an external antenna.

[0096] In some embodiments of the present application, the antenna assembly 100 may be a built-in antenna, and the single board 11 and the antenna assembly 100 are both disposed within the housing structure 12 , which is not limited in the embodiments of the present application.

[0097] Figure 3 This is a circuit diagram of the network device 10 provided in the embodiment of the present application. Figure 3 The network device 10 includes a transmitting chain 230 , a receiving chain 240 , a first RF front-end module 210 , a second RF front-end module 220 and an antenna assembly 100 .

[0098] The transmission chain 230 includes a first power splitter 231 , and the first RF front-end module 210 and the second RF front-end module 220 are both connected to the first power splitter 231 .

[0099] The receiving link 240 includes a second power splitter 241 , and both the first RF front-end module 210 and the second RF front-end module 220 are connected to the second power splitter 241 .

[0100] Exemplarily, the transmission chain 230 further includes a transmitter (transmit, Tx), which is connected to the first power splitter 231. The reception chain 240 further includes a receiver (Receive, Rx), which is connected to the second power splitter 241. In some embodiments, the transmitter and the receiver are integrated into the same chip.

[0101] Antenna assembly 100 includes a substrate 130 and multiple antennas, all mounted on substrate 130. The multiple antennas have the same center frequency. The multiple antennas include a first antenna 110 and a second antenna 120, both of which have dielectric waveguide wavelengths corresponding to their center frequencies, λ. The dielectric waveguide wavelength λ can also be referred to as the dielectric wavelength λ.

[0102] The first RF front-end module 210 is electrically connected to the first antenna 110 and is used to transmit signals with the first antenna 110. The second RF front-end module 220 is connected to the second antenna 120 and is used to transmit signals with the second antenna 120.

[0103] In this way, under the action of the first RF front-end module 210 and the second RF front-end module 220, the first antenna 110 and the second antenna 120, which have the same center frequency, transmit downlink signals through the same power splitter, and the first antenna 110 and the second antenna 120 transmit uplink signals through the same power splitter. This can increase the signal strength radiated by the first antenna 110 and the second antenna 120, which helps improve the wall penetration performance of the signal of the network device 10.

[0104] The center frequency of the first antenna 110 refers to the median of the operating frequency band of the first antenna 110. The center frequency of the second antenna 120 is similar.

[0105] Exemplarily, the operating frequency band of the first antenna 110 may be a 2.4 GHz band, a 5.2 GHz band, a 5.8 GHz band, a 5 GHz band, a 6 GHz band, or the like.

[0106] For example, the 2.4 GHz band may have a frequency band width of 2.4 GHz to 2.5 GHz. The 5.2 GHz band may have a frequency band width of 5.17 GHz to 5.33 GHz. The 5.8 GHz band may have a frequency band width of 5.735 GHz to 5.835 GHz. The 5 GHz band may have a frequency band width of 5.17 GHz to 5.835 GHz. The 6 GHz band may have a frequency band width of 5.925 GHz to 7.125 GHz.

[0107] Exemplarily, the first RF front-end module 210 includes a first port, a second port, and a third port. The first port of the first RF front-end module 210 is connected to the first power divider 231, the second port of the first RF front-end module 210 is connected to the first antenna 110, and the third port of the first RF front-end module 210 is connected to the second power divider 241. When the transmit link 230 transmits an uplink signal to the first antenna 110, the first port and the second port of the first RF front-end module 210 are connected. When the receive link 240 receives a downlink signal from the first antenna 110, the third port and the second port of the first RF front-end module 210 are connected.

[0108] Similarly, the second RF front-end module 220 includes a first port, a second port, and a third port. The first port of the second RF front-end module 220 is connected to the first power splitter 231, the second port of the second RF front-end module 220 is connected to the second antenna 120, and the third port of the second RF front-end module 220 is connected to the second power splitter 241. When the transmit link 230 transmits an uplink signal to the second antenna 120, the first port and the second port of the second RF front-end module 220 are connected. When the receive link 240 receives a downlink signal from the second antenna 120, the third port and the second port of the second RF front-end module 220 are connected.

[0109] In some embodiments of the present application, the main lobe direction of radiation from the first antenna 110 is parallel to the main lobe direction of radiation from the second antenna 120. The main lobe direction of radiation from the first antenna 110 can also be referred to as the direction of the main beam radiated by the first antenna 110. The main lobe direction of radiation from an antenna refers to the direction of the maximum radiation beam on the antenna pattern.

[0110] In this way, in the main lobe direction radiated by the first antenna 110 or the second antenna 120, the signal strength of the first antenna 110 and the second antenna 120 is higher. Because the first antenna 110 and the second antenna 120 transmit downlink signals through the same power splitter, the first antenna 110 and the second antenna 120 transmit uplink signals through the same power splitter. The signals radiated by the first antenna 110 and the second antenna 120 can cover a larger area, improve the signal coverage range of the antenna assembly 100, and enhance the anti-interference capability. Therefore, the strength of both the uplink signal and the downlink signal of the network device 10 provided in the embodiment of the present application is improved.

[0111] Compared with the solution of two antennas transmitting signals through one RF front-end module, the network device 10 provided in the embodiment of the present application can be provided without a phase shift chip or a phase shift circuit module, thereby simplifying the circuit architecture and reducing the manufacturing cost of the network device 10.

[0112] When the network device 10 is used in a wall-penetrating coverage scenario, the network device 10 provided in the embodiment of the present application can improve the signal strength after penetrating the wall without reducing the coverage angle and coverage range. In some embodiments, the wall-penetrating signal can be improved by 3dBi or more.

[0113] The first antenna 110 and the second antenna 120 are both directional antennas.

[0114] In some embodiments of the present application, a main lobe direction radiated by the first antenna 110 is opposite to a main lobe direction radiated by the second antenna 120 .

[0115] In the embodiment of the present application, the angle between the main lobe direction radiated by the first antenna 110 and the main lobe direction radiated by the second antenna 120 is 180°±10°, and it is considered that the main lobe direction radiated by the first antenna 110 is opposite to the main lobe direction radiated by the second antenna 120. For example, the angle between the main lobe direction radiated by the first antenna 110 and the main lobe direction radiated by the second antenna 120 is 170°, 172°, 175°, 178°, 179°, 180°, 182°, 185°, 186°, 188°, or 190°, etc.

[0116] In some embodiments, the first antenna 110 is a single-beam antenna having a main beam that determines the primary radiation or reception direction of the antenna. The second antenna 120 is a single-beam antenna having a beam direction different from that of the first antenna 110, e.g., opposite to that of the second antenna 120.

[0117] In some embodiments of the present application, the main lobe direction of radiation emitted by the first antenna 110 is the same as the main lobe direction of radiation emitted by the second antenna 120. In the embodiments of the present application, the angle between the main lobe direction of radiation emitted by the first antenna 110 and the main lobe direction of radiation emitted by the second antenna 120 is 0°±10°, and it is considered that the main lobe direction of radiation emitted by the first antenna 110 and the main lobe direction of radiation emitted by the second antenna 120 are the same. For example, the angle between the main lobe direction of radiation emitted by the first antenna 110 and the main lobe direction of radiation emitted by the second antenna 120 is -10°, -8°, -6°, -3°, -2°, 0°, 2°, 4°, 5°, 8°, or 10°, etc.

[0118] like Figure 3 As shown, in some embodiments of the present application, the network device 10 also includes a first transmission line 310 and a second transmission line 320, the first RF front-end module 210 is electrically connected to the feeding end of the first antenna 110 through the first transmission line 310, and the second RF front-end module 220 is electrically connected to the feeding end of the second antenna 120 through the second transmission line 320.

[0119] Thus, the first RF front-end module 210 transmits signals to the first antenna 110 via the first transmission line 310 , and the second RF front-end module 220 transmits signals to the second antenna 120 via the second transmission line 320 .

[0120] In some embodiments of the present application, the first transmission line 310 is a coaxial cable, which includes an electrically isolated ground line and a signal line, the ground line being connected to a ground layer, and the signal line being connected to a feeder terminal of the first antenna 110. Similarly, the second transmission line 320 is a coaxial cable.

[0121] In this document, the feeding end of the first antenna 110 is also referred to as the first feeding end 101 (e.g. Figure 4 As shown in FIG), the feeding end of the second antenna 120 is also referred to as the second feeding end 102 (as shown in FIG). Figure 4 shown).

[0122] In some embodiments of the present application, the phase of the electromagnetic waves radiated by the first antenna 110 is equal to the phase of the electromagnetic waves radiated by the second antenna 120. As a result, within the signal coverage range of the first antenna 110 and the second antenna 120, the electric fields of the first antenna 110 and the second antenna 120 are superimposed in phase, thereby enhancing radiation and improving signal strength.

[0123] In some embodiments of the present application, the difference between the distance between the first RF front-end module 210 and the feeding end of the first antenna 110, the total distance between the feeding end of the first antenna 110 and the feeding end of the second antenna 120, and the distance between the second RF front-end module 220 and the feeding end of the second antenna 120 is a natural number multiple of the center frequency of the first antenna 110. For example, the aforementioned distance difference can be 0, λ, 2λ, 3λ, 4λ, or 5λ. In this way, the phase of the electromagnetic wave radiated by the first antenna 110 can be equal to the phase of the electromagnetic wave radiated by the second antenna 120.

[0124] In this document, distances or distance differences allow for manufacturing and assembly errors. These manufacturing and assembly errors can be, for example, 0.02λ. For example, a distance difference of 0±0.02λ is considered to satisfy the distance difference condition of 0. Similarly, a distance difference of λ±0.02λ is considered to satisfy the distance difference condition of λ. The same applies to other descriptions of 0.5λ and so forth.

[0125] In some embodiments of the present application, the vertical projection of the first antenna 110 on the substrate 130 and the vertical projection of the second antenna 120 on the substrate 130 are symmetrical about a reference line. In other words, the vertical projection of the first antenna 110 on the substrate 130 forms a first pattern, and the vertical projection of the second antenna 120 on the substrate 130 forms a second pattern, and the first pattern and the second pattern are symmetrical about the reference line.

[0126] In this way, the main lobe direction of the first antenna 110 is parallel to the main lobe direction of the second antenna 120. In this main lobe direction, the first antenna 110 and the second antenna 120 have the same phase, which is beneficial to improving signal strength.

[0127] In the embodiment of the present application, the vertical projection of the first antenna 110 on the substrate 130 refers to the projection of the first antenna 110 on the surface of the substrate 130 along a direction perpendicular to the substrate 130. The rest of the description of the vertical projection in this document is similar.

[0128] Exemplarily, the reference line is located on the substrate 130 , and the distance from the first feeding end 101 to the reference line is equal to the distance from the first feeding end 101 to the reference line.

[0129] In the embodiment of the present application, the pattern that is symmetrical about the reference line of the first pattern is the third pattern, and if the overlap between the third pattern and the second pattern is greater than or equal to 95%, it is considered that the first pattern and the second pattern are symmetrical about the reference line.

[0130] In the embodiment of the present application, the first antenna 110 may be a vertically polarized antenna or a horizontally polarized antenna.

[0131] In the embodiment of the present application, the antenna assembly 100 has various examples. The antenna in the antenna assembly 100 can be a monopole antenna or a dipole antenna. Figures 4-10 An exemplary description is given.

[0132] Figure 4 This is a schematic diagram of the structure of an antenna assembly 100 provided in an embodiment of the present application. Figure 4 , the antenna assembly 100 includes a substrate 130 , a first antenna 110 and a second antenna 120 .

[0133] Figure 4 In the example of FIG, the first antenna 110 and the second antenna 120 are both monopole antennas. The network device provided in the embodiment of the present application can be adapted to monopole antennas, and is not limited to the type of antenna, thereby increasing the adaptability of the network device.

[0134] Figure 4 The first antenna 110 includes two monopole elements and a power divider, and the power divider transmits signals to the two monopole elements.

[0135] Illustratively, first antenna 110 includes a first monopole element 111, a second monopole element 112, and a third power divider 113. Third power divider 113 includes a first conductive end 301, a second conductive end 302, and a third conductive end 303. First conductive end 301 is electrically connected to first monopole element 111, second conductive end 302 is electrically connected to second monopole element 112, and third conductive end 303 serves as a feed end for first antenna 110.

[0136] In this way, the first monopole element 111 and the second monopole element 112 can radiate electromagnetic waves, so that the first antenna 110 has a directional radiation characteristic. Figure 3 As shown) includes the first antenna 110, so that the network device has the advantages of high signal strength, wide coverage area, and excellent wall penetration performance.

[0137] Figure 4 In the example, the third power divider 113 has a T-shaped structure. It is understood that in other embodiments, the third power divider 113 can have other shapes. The first monopole element 111 can have a square, circular, elliptical, or irregularly shaped sheet structure, and the same applies to the second monopole element 112.

[0138] In some embodiments, the first monopole element 111 and the second monopole element 112 have the same shape. In this way, the angles covered by the first monopole element 111 and the second monopole element 112 are symmetrical, which is beneficial for improving the gain of the main lobe of the first antenna 110.

[0139] Exemplarily, substrate 130 includes a conductive layer, which serves as a ground layer. Both first monopole element 111 and second monopole element 112 are electrically connected to the conductive layer. For example, first monopole element 111 is electrically connected to the conductive layer via a ground pad, and second monopole element 112 is electrically connected to the conductive layer via another ground pad.

[0140] The first feeding terminal 101 is connected to the first transmission line 310. For example, the first feeding terminal 101 is electrically connected to the signal line of the first transmission line 310 through a signal pad.

[0141] In some embodiments of the present application, the substrate 130 may include a dielectric plate, which is used to support the conductive layer. In such embodiments, the signal pad may be mechanically connected to the dielectric plate, which is used to support the signal pad.

[0142] In some embodiments of the present application, substrate 130 is a conductive plate. In other words, the entire substrate 130 is conductive, and substrate 130 can be considered a ground plane. In such embodiments, first feeder 101 and substrate 130 are electrically isolated. For example, a gap is provided between first feeder 101 and substrate 130.

[0143] In the embodiments of the present application, the first antenna 110 can be a one-piece steel sheet structure. In other words, the first antenna 110 is a one-piece molded component, formed by bending a conductive structure such as a steel sheet. This allows for connection to the substrate 130 using surface mount technology (SMT).

[0144] The embodiments of the present application do not limit the dimensions of the first monopole element 111, the second monopole element 112, and the third power divider 113. In some embodiments, the height of the first antenna 110 can be reduced by increasing the dimension of the first antenna 110 parallel to the substrate 130 and reducing the dimension of the first antenna 110 perpendicular to the substrate 130. For example, along the thickness of the substrate 130, the dimension of the first antenna 110 can be less than or equal to 8 mm, which can better meet the height requirements of the SMT process.

[0145] In some embodiments, along the thickness direction of the substrate 130 , the size of the first antenna 110 is greater than or equal to 10 mm, so that the downtilt angle of the first antenna 110 can better meet the requirements of ceiling-mounted beam coverage.

[0146] In some embodiments, the coplanarity of the three planes of the two ground pads and the signal pad is less than or equal to 0.1 mm, which is beneficial to the reliability of SMT process installation.

[0147] Figure 4In the example shown in FIG, the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is perpendicular to the arrangement direction of the first conductive end 301 and the second conductive end 302. As a result, the beam directions of the first antenna 110 and the second antenna 120 are parallel, and the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is parallel to the beam direction of the first antenna 110.

[0148] In the embodiment of the present application, the direction in which the feeding end of the first antenna 110 and the feeding end of the second antenna 120 are arranged is defined as the x direction.

[0149] In the embodiments of the present application, the aforementioned "the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is perpendicular to the arrangement direction of the first conductive end 301 and the second conductive end 302" allows for manufacturing and assembly errors. For example, the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 can form an angle of 90°±4° with the arrangement direction of the first conductive end 301 and the second conductive end 302. For example, the angle can be 86°, 87°, 88°, 90°, 91°, 92°, 94°, etc. The same applies to the rest of the description of perpendicularity in this document.

[0150] Figure 4 In the example, the network device further includes a first reflector 201 and a second reflector 202, both of which are disposed on the substrate 130. The feed end of the first antenna 110, the first reflector 201, the second reflector 202, and the feed end of the second antenna 120 are arranged along a first direction. As previously mentioned, the feed end of the first antenna 110 and the feed end of the second antenna 120 are arranged in the x-direction, which is also the x-direction.

[0151] The first reflector 201 helps improve the quality and stability of signal reception by the first antenna 110, increases the antenna communication distance and data transmission speed, and increases the gain of the first antenna 110. The second reflector 202 helps improve the quality and stability of signal reception by the second antenna 120, increases the communication distance and data transmission speed, and increases the gain of the second antenna 120.

[0152] Along the first direction (x direction), the first reflector 201 is located between the first feeder 101 and the second reflector 202, and the second reflector 202 is located between the second feeder 102 and the first reflector 201. Due to the effects of the first reflector 201 and the second reflector 202, the main lobe of the first antenna 110 is oriented in the direction from the first feeder 101 away from the second feeder 102, while the main lobe of the second antenna 120 is oriented in the direction from the second feeder 102 away from the first feeder 101. In this way, the arrangement of the first reflector 201 and the second reflector 202 can increase both gain and antenna directivity.

[0153] Illustratively, the dimension of the first reflector 201 along the thickness direction of the substrate 130 is greater than or equal to 0.5λ. Thus, the first reflector 201 can further improve the communication distance and data transmission speed of the first antenna 110. Illustratively, the dimension of the first reflector 201 is 0.5λ, 0.6λ, 0.7λ, 0.8λ, 1λ, and so on.

[0154] For example, along the first direction, the distance between the first reflector 201 and the first feeding port 101 is 0.25λ. Thus, the electromagnetic waves radiated by the first antenna 110 are reflected by the first reflector 201 and then retransmitted to the first feeding port 101. The electromagnetic waves retransmitted to the first feeding port 101 have the same phase as the electromagnetic waves not reflected by the first reflector 201, thereby increasing the gain of the electromagnetic waves.

[0155] Exemplarily, the first reflector 201 is electrically connected to the ground layer of the substrate 130. For example, the first reflector 201 is electrically connected to the ground layer of the substrate 130 via a conductive adhesive layer or a solder layer.

[0156] The present embodiment does not limit the shape of the first reflector 201. In some embodiments, the first reflector 201 is an L-shaped plate structure. The vertical projection of the first reflector 201 onto a reference plane parallel to the first direction (x-direction) is L-shaped. One straight plate of the L-shaped plate structure is electrically connected to the ground layer of the substrate 130, and the other straight plate of the L-shaped plate structure is perpendicular to the substrate 130.

[0157] In other embodiments of the present application, the first reflector 201 may be in other shapes, for example, a curved plate structure. In order to reduce weight or strength requirements, a hollow structure or reinforcement may be provided on the first reflector 201 .

[0158] In other embodiments of the present application, the structure and dimensions of the second antenna 120 refer to the description of the structure and dimensions of the first antenna 110. The shape and structure of the second reflector 202 refer to the description of the shape and structure of the first reflector 201. The relationship between the second reflector 202 and the second feeder 102 refers to the description of the relationship between the first reflector 201 and the first feeder 101, and will not be repeated here.

[0159] In some embodiments of the present application, the vertical projection of the first reflector 201 on the substrate 130 and the vertical projection of the second reflector 202 on the substrate 130 are symmetrical about a reference line. As such, the reflection effect of the first reflector 201 on the first antenna 110 is substantially the same as the reflection effect of the second reflector 202 on the second antenna 120. This facilitates the main lobe direction of radiation from the first antenna 110 to be opposite to the main lobe direction of radiation from the second antenna 120.

[0160] In some embodiments of the present application, the first reflector 201 and the second reflector 202 have the same structural dimensions, and the first antenna 110 and the second antenna 120 have the same structural dimensions. The first reflector 201 and the second reflector 202 are symmetrical about the first reference plane, and the first antenna 110 and the second antenna 120 are symmetrical about the first reference plane. This facilitates symmetry between the directivity patterns of the first antenna 110 and the second antenna 120, and the signal coverage areas of the first antenna 110 and the second antenna 120 are symmetrically distributed. Furthermore, the signal strength is relatively strong in both the areas covered by the first antenna 110 and the second antenna 120.

[0161] In some embodiments of the present application, the electromagnetic waves radiated by the first antenna 110 and the electromagnetic waves radiated by the second antenna 120 are in phase with each other. In this way, the electromagnetic waves radiated by the first antenna 110 and the second antenna 120 are superimposed on each other, thereby improving the wall penetration capability.

[0162] Figure 4 In the example, a distance between a vertical projection of the first monopole element 111 on the substrate 130 and a vertical projection of the second monopole element 112 on the substrate 130 is an integer multiple of λ.

[0163] In the embodiment of the present application, the distance between the vertical projection of the first monopole element 111 on the substrate 130 and the vertical projection of the second monopole element 112 on the substrate 130 is equal to the distance between the first conductive end 301 and the second conductive end 302. This distance is an integer multiple of λ. When the electromagnetic waves are superimposed in phase with the angular direction perpendicular to the line connecting the first monopole element 111 and the second monopole element 112, the beam gain is increased, thus giving the first antenna 110 a dual-beam characteristic. For example, this distance can be λ, 2λ, or 3λ.

[0164] Figure 4 In the example, the difference between the length of the first transmission line 310 and the length of the second transmission line 320 is an integer multiple of λ, and the distance from the feeding end of the first antenna 110 to the feeding end of the second antenna 120 is an integer multiple of λ. Thus, the total distance from the length of the first transmission line 310 to the first feeding end 101, the total distance from the first feeding end 101 to the second feeding end 102, and the length of the second transmission line 320 differ by an integer multiple of λ. This difference can be 0, λ, 2λ, or 3λ, among others.

[0165] In this way, the electromagnetic waves radiated by the first antenna 110 and the electromagnetic waves radiated by the second antenna 120 are equal in phase, and the intensities of the electromagnetic waves radiated by the two antennas are superimposed, thereby increasing the intensity of the signal radiated by the network device and improving the wall penetration capability.

[0166] In some embodiments, the distance between the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is λ. In this way, the electromagnetic waves radiated by the first antenna 110 and the electromagnetic waves radiated by the second antenna 120 are superimposed on each other, and the distance between the first antenna 110 and the second antenna 120 is relatively close, resulting in a high degree of integration of the antenna assembly 100, which is conducive to miniaturization of network equipment.

[0167] Figure 4 In the example, the structure composed of the first antenna 110 and the first reflector 201 can be regarded as a single-beam antenna. In other words, the single-beam antenna includes the first antenna 110 and the first reflector 201. The second antenna 120 and the second reflector 202 are similar.

[0168] Figure 5 for Figure 4 The radiation patterns of the two antennas in . Figure 5 Figure (a) shows the directional pattern of a single-beam antenna. The single-beam antenna includes Figure 4 The first antenna 110 and the first reflector 201, Figure 5 Figure (b) shows the directional pattern of another single-beam antenna. This single-beam antenna includes Figure 4 The second antenna 120 and the second reflector 202 in FIG.

[0169] from Figure 5 It can be seen from the figure that the main lobe directions of the two antennas are opposite. Figure 3 As shown in FIG, 1 , the network device 10 includes the two antennas, and the uplink and downlink signal strengths are both improved.

[0170] In some embodiments of the present application, the first reflector and the second reflector are not necessary.

[0171] Figure 6 This is a structural diagram of another antenna assembly 100 provided in an embodiment of the present application. Figure 6 and Figure 4 The differences include that the antenna assembly 100 does not include the first reflector and the second reflector.

[0172] and Figure 4 compared to, Figure 6 The distance between the first antenna 110 and the second antenna 120 can be closer.

[0173] Figure 6 In the embodiment, the distance between the vertical projections of the first conductive end 301 and the second conductive end 302 on the substrate 130 and the vertical projection of the second monopole element 112 on the substrate 130 is an odd multiple of 0.5λ, such as 0.5λ, 1.5λ, 2.5λ, etc. In this way, angular electromagnetic waves in the same direction as the line connecting the first monopole element 111 and the second monopole element 112 cancel each other out of phase, forming a beam null. Angular electromagnetic waves in a direction perpendicular to the line connecting the first monopole element 111 and the second monopole element 112 are superimposed in phase, increasing the beam gain and giving the first antenna 110 a dual-beam characteristic.

[0174] Figure 6 , the difference between the length of the first transmission line 310 and the length of the second transmission line 320 is an odd multiple of 0.5λ. The distance from the feeding end of the first antenna 110 to the feeding end of the second antenna 120 is an odd multiple of 0.5λ.

[0175] Similarly to the above, the difference between the total distance from the first transmission line 310 to the first feeding terminal 101, the total distance from the first feeding terminal 101 to the second feeding terminal 102, and the length of the second transmission line 320 is an integer multiple of λ. This difference can be 0, λ, 2λ, or 3λ, among others. The electromagnetic waves radiated by the first antenna 110 and the second antenna 120 are in phase, and the electromagnetic wave intensities are superimposed, increasing the strength of the signal radiated by the network device and improving wall penetration.

[0176] In some embodiments, the distance between the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is 0.5λ. In this way, the distance between the first antenna 110 and the second antenna 120 is relatively close, and the antenna assembly 100 has a high degree of integration, which is conducive to miniaturization of network equipment.

[0177] In some embodiments, the distance between the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is 1.5λ, 2.5λ, 3.5λ, etc.

[0178] Figure 6 In the example of FIG, since there are no first reflectors and second reflectors, the electromagnetic wave signals radiated by the first antenna 110 and the second antenna 120 will not be reflected. The main lobe directions of the first antenna 110 and the second antenna 120 are the same.

[0179] Figure 6 For the rest of the structure, please refer to Figure 4 The description in , will not be repeated here.

[0180] Figure 7 for Figure 6 The radiation patterns of the two antennas in . Figure 7 Figure (a) is Figure 6 The directional pattern of the first antenna 110 in . Figure 7 Figure (b) is Figure 6 The directivity pattern of the second antenna 120 in FIG.

[0181] from Figure 7 It can be seen from the figure that the main lobe directions of the two antennas are the same. Figure 3 As shown in FIG, 1 , the network device 10 includes the two antennas, and the uplink and downlink signal strengths are both improved.

[0182] In some embodiments of the present application, the first antenna 110 may include only one monopole element.

[0183] Figure 8 A schematic structural diagram of another antenna assembly 100 provided in an embodiment of the present application. Figure 8 and Figure 4 The differences include: the structure of the first antenna 110 is different.

[0184] Figure 8 In the example of , the first antenna 110 includes a monopole element. Figure 8 The network device 10 (eg, Figure 3 (as shown) also has the advantages of high signal strength and large signal coverage area.

[0185] In this way, the network device provided in the embodiment of the present application is adaptable to multiple types of antennas.

[0186] Figure 8 In the example, the monopole element is a bent conductive sheet structure. This can reduce the space occupied by the first antenna 110 and improve the compactness of the antenna assembly 100. In other embodiments of the present application, the monopole element can be of other shapes, for example, a square plate or other structure.

[0187] Similarly, the second antenna 120 includes a monopole element.

[0188] In addition, in some embodiments of the present application, Figure 6 The structure of the first antenna 110 in the embodiment may also be Figure 8 The structure of the first antenna 110 is shown in FIG. Figure 6 The structure of the second antenna 120 can also be Figure 8The structure of the second antenna 120 is shown in FIG.

[0189] In some embodiments of the present application, the arrangement direction of the first antenna 110 and the second antenna 120 can be the same as Figure 4 Different.

[0190] Figure 9 This is a schematic structural diagram of another antenna assembly 100 provided in an embodiment of the present application. Figure 9 and Figure 4 The differences include: the first antenna 110 and the second antenna 120 are arranged in different directions. Figure 9 The antenna assembly 100 in FIG. 1 does not include the first reflector and the second reflector.

[0191] Figure 9 In the example, the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is parallel to the arrangement direction of the first conductive end 301 and the second conductive end 302. As a result, the beam directions of the first antenna 110 and the second antenna 120 are parallel, and the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is parallel to the beam direction of the first antenna 110.

[0192] As such, the beam directions of the first antenna 110 and the second antenna 120 are parallel, and the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is parallel to the beam direction of the first antenna 110 .

[0193] and Figure 4 In comparison, the minimum distance between the first antenna 110 and the second antenna 120 is smaller.

[0194] In the embodiments of the present application, the aforementioned "the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is parallel to the arrangement direction of the first conductive end 301 and the second conductive end 302" allows for the existence of manufacturing errors and assembly errors. For example, the arrangement direction of the feeding end of the first antenna 110 and the feeding end of the second antenna 120 and the arrangement direction of the first conductive end 301 and the second conductive end 302 can be an angle of 180°±4° or 0°±4°. For example, the angle can be -4°, -2°, -1°, 0°, 1°, 2°, 3°, 4°, 176°, 177°, 178°, 180°, 181°, 182°, 184°, etc. The same applies to the rest of the description of parallelism in this article.

[0195] Figure 9In the example, the difference between the lengths of first transmission line 310 and second transmission line 320 is an integer multiple of λ, and the distance between the feeding end of first antenna 110 and the feeding end of second antenna 120 is 0.7λ to 0.8λ. This allows the electric fields of the electromagnetic waves radiated by first antenna 110 and second antenna 120 to overlap in phase, enhancing the radiation.

[0196] For example, the distance between the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is 0.7λ, 0.75λ, 0.78λ, 0.79λ or 0.8λ. In this way, the first antenna 110 and the second antenna 120 are compact, which is conducive to miniaturization of the antenna assembly 100.

[0197] Figure 9 For the rest of the structure, please refer to Figure 4 The description in , will not be repeated here.

[0198] Figure 9 The shapes of the radiation patterns of the two antennas in Figure 7 The same as in the previous section, no further description is given here.

[0199] The foregoing Figure 4 、 Figure 6 、 Figure 8 and Figure 9 In the examples, the first antenna 110 is a monopole antenna. In some embodiments of the present application, the first antenna 110 may be a dipole antenna.

[0200] Figure 10 This is a structural diagram of another antenna assembly 100 provided in an embodiment of the present application. Figure 10 and Figure 4 The differences include: the structures of the first antenna 110 and the second antenna 120 are different.

[0201] Figure 10 In the embodiment, the first antenna 110 is a dipole antenna, and the network device further includes a third reflector 203 and a fourth reflector 204. The third reflector 203 and the fourth reflector 204 are both disposed on the substrate 130. The feed end of the first antenna 110, the third reflector 203, the fourth reflector 204, and the feed end of the second antenna 120 are arranged along a first direction (x direction).

[0202] In this way, the third reflector 203 can reflect the electromagnetic waves radiated by the first antenna 110, making the beam radiated by the dipole antenna directional. Similarly, the fourth reflector 204 makes the beam radiated by the second antenna 120 directional. In this case, the dipole antenna is also suitable for the network device provided by this application.

[0203] In some embodiments of the present application, the dimension of the third reflector 203 is greater than or equal to 0.5λ along a direction perpendicular to the thickness of the substrate 130. This ensures that the electromagnetic waves reflected by the third reflector 203 are in phase with the electromagnetic waves not reflected by the third reflector 203, thereby increasing the intensity of the electromagnetic waves radiated by the antenna assembly 100, enhancing the signal strength radiated by the antenna assembly 100, and improving the signal's wall penetration performance.

[0204] Exemplarily, along a direction perpendicular to the thickness direction of the substrate 130 , the size of the third reflector 203 is 0.5λ, 0.6λ, 0.7λ, 0.8λ, 1λ, etc.

[0205] Figure 10 In this embodiment, the first antenna 110 includes two branches, and the first transmission line 310 is used to transmit signals to the two branches. The same applies to the second antenna 120. In some embodiments, the openings of the two branches in the first antenna 110 are oriented in opposite directions to the openings of the two branches in the second antenna 120. This ensures that the main lobe of the radiation emitted by the first antenna 110 is oriented in opposite directions to the main lobe of the radiation emitted by the second antenna 120.

[0206] The embodiment of the present application does not limit the shapes of the two branches in the first antenna 110 , and they can be set according to the size of the space on the substrate 130 .

[0207] In some embodiments, the vertical projection of the third reflector 203 on the substrate 130 and the vertical projection of the fourth reflector 204 on the substrate 130 are symmetrical about a reference line. Thus, the reflection effect of the third reflector 203 on the first antenna 110 is the same as the reflection effect of the fourth reflector 204 on the second antenna 120. The main lobe direction that favors radiation from the first antenna 110 is opposite to the main lobe direction of radiation from the second antenna 120.

[0208] In some embodiments of the present application, the third reflector 203 and the fourth reflector 204 have the same structural dimensions, and the first antenna 110 and the second antenna 120 have the same structural dimensions. The third reflector 203 and the fourth reflector 204 are symmetrical about the first reference plane, and the first antenna 110 and the second antenna 120 are symmetrical about the first reference plane. This facilitates symmetry between the directivity patterns of the first antenna 110 and the second antenna 120, and the signal coverage areas of the first antenna 110 and the second antenna 120 are symmetrically distributed. Furthermore, the signal strength is relatively strong in both the areas covered by the first antenna 110 and the second antenna 120.

[0209] Figure 10In this embodiment, the third reflector 203 extends perpendicular to the first direction and also perpendicular to the thickness of the substrate 130. For example, along the extension direction of the third reflector 203, the dimension of the third reflector 203 is greater than or equal to 0.5λ. This improves the reflection performance of the third reflector 203 for the first antenna 110 of the dipole antenna, promoting directivity of the beam radiated by the first antenna 110.

[0210] Figure 10 In the embodiment, the third reflector 203 is in a comb-like shape. The third reflector 203 includes a conductive strip and a plurality of conductive teeth. The plurality of conductive teeth are arranged in sequence along the length of the conductive strip, and the plurality of conductive teeth are electrically connected to the conductive strip. The size of the third reflector 203 is the length of the conductive strip.

[0211] In other embodiments of the present application, the third reflector 203 may be in other shapes.

[0212] The structure and dimensions of the fourth reflector 204 can be found in the description of the third reflector 203 and will not be repeated here.

[0213] Figure 10 In the embodiment, the antenna assembly 100 may further include a first director 205 and a second director 206, both of which are disposed on the substrate 130. The first director 205, the feeding end of the first antenna 110, the feeding end of the second antenna 120, and the second director 206 are arranged along a first direction.

[0214] First director 205 converges the electromagnetic waves of first antenna 110, increasing the consistency of the beam of first antenna 110 and improving the directivity of the radiation pattern of first antenna 110. Similarly, second director 206 has the same effect on second antenna 120. Thus, under the action of first director 205 and second director 206, the gain of first antenna 110 and second antenna 120 are increased, and the signal strength of antenna assembly 100 is enhanced.

[0215] In some embodiments of the present application, the vertical projection of the first director 205 on the substrate 130 and the vertical projection of the second director 206 on the substrate 130 are symmetrical about a reference line. The effect of the first director 205 on the beam of the first antenna 110 is the same as the effect of the second director 206 on the beam of the second antenna 120, but in opposite directions, facilitating that the main lobe direction of the first antenna 110 is opposite to the main lobe direction of the second antenna 120.

[0216] The embodiment of the present application does not limit the structure of the first director 205. Figure 10In this embodiment, the first director 205 includes three conductive portions, each electrically connected to the ground layer of the substrate 130. The three conductive portions are arranged along a first direction. The lengths of the three conductive portions increase as they approach the first antenna 110. These three conductive portions fully utilize the polarization characteristics of the first antenna 110, effectively converging the electromagnetic waves radiated by the first antenna 110.

[0217] For example, along a direction perpendicular to the thickness of the substrate 130 , the maximum dimension of the first director 205 is less than or equal to 0.5λ. For example, the maximum dimension of the first director 205 is 0.5λ, 0.4λ, 0.3λ, 0.2λ, etc. In this way, the first director 205 better converges the electromagnetic waves of the first antenna 110 .

[0218] The size and structure of the second director 206 refer to the description of the first director 205 .

[0219] In some embodiments, the first antenna 110, the first director 205, and the third reflector 203 can be considered a horizontally polarized Yagi antenna. The second antenna 120, the second director 206, and the fourth reflector 204 can be considered a horizontally polarized Yagi antenna.

[0220] In some embodiments of the present application, the assembly consisting of the first antenna 110 , the first director 205 , and the third reflector 203 can be considered as a horizontally polarized Vivaldi broadband antenna, a horn antenna, a log-periodic antenna, etc. The same applies to the second antenna 120 .

[0221] In some embodiments of the present application, the first director 205 and the second director 206 are not necessary, and the antenna assembly 100 may not be provided with the first director 205 and the second director 206 .

[0222] Figure 10 In the example, the difference between the lengths of first transmission line 310 and second transmission line 320 is an integer multiple of λ, and the distance between the feeding end of first antenna 110 and the feeding end of second antenna 120 is an integer multiple of λ. This allows the electric fields of the electromagnetic waves radiated by first antenna 110 and second antenna 120 to overlap in phase, enhancing the radiation.

[0223] Similarly, in order to improve the integration of the antenna assembly 100 , the distance between the feeding end of the first antenna 110 and the feeding end of the second antenna 120 is λ.

[0224] The network device 10 provided in this embodiment of the present application can achieve a signal penetration improvement of more than 3dBi through walls without sacrificing coverage angle, and improves both uplink and downlink signal strength. Compared to phased array antenna systems or analog beamforming antenna systems, the network device 10 provided in this embodiment of the present application does not require a phase-shifting chip or phase-shifting circuit module, resulting in a simplified architecture and cost savings. It is suitable for wall-penetrating coverage scenarios such as deploying access points (APs) in corridors.

[0225] Figure 11 The embodiments of this application include Figure 4 Directional pattern of a network device with antenna assembly 100. Figure 11 The mid-circumferential coordinate is the antenna azimuth, expressed in degrees. The circumferential coordinate scale is 0°, 30°, 60°, 90°, 120°, 150°, 180°, -150°, -120°, -90°, -60°, and -30°.

[0226] Figure 11 Position 1 (60.8, 10.34) means that the pitch angle at position 1 is 60.8° and the gain is 10.34dBi. The same applies to positions 2, 3, and 4.

[0227] Figure 11 The middle curve S1 is Figure 4 The directional pattern of the first antenna 110, curve S2 is Figure 4 The directivity pattern of the second antenna 120. Figure 11 The middle curve S3 is the directional diagram of the control example, in which the antenna components are Figure 4 The difference is that the first antenna and the second antenna are connected to the same RF front-end module. Figure 11 It can be seen that compared with the phased array antenna system in the comparative example, the embodiment of the present application includes Figure 4 The network equipment with medium antenna components can improve the wall penetration signal by more than 3dBi.

[0228] The embodiment of the present application does not limit the deployment method of the network device 10.

[0229] In some embodiments, the arrangement direction of the first feeding end and the second feeding end is parallel to the wall penetration direction. In some embodiments, the arrangement direction of the first feeding end and the second feeding end is perpendicular to the wall penetration direction.

[0230] Figure 12 To include Figure 4 A schematic diagram of a deployment of a network device 10 with an antenna assembly is shown in FIG. Figure 12 The arrangement direction of the first room 1 and the second room 2 is parallel to the arrangement direction of the first feeding end 101 and the second feeding end 102.

[0231] In this way, the main lobe of radiation from first antenna 110 is directed toward second room 2, while the main lobe of radiation from second antenna 120 is directed toward first room 1. Second room 2 is located in the main beam direction of second antenna 120. First room 1 is located in the main beam direction of first antenna 110. This network device causes the electric fields in the arrangement squares of first room 1 and second room 2 to superimpose in phase, enhancing radiation and improving the communication quality between terminal devices in first room 1 or second room 2 and the network device.

[0232] include Figure 6 The network device 10 including the antenna assembly shown in FIG. Figure 10 The deployment diagram of the network device 10 of the antenna assembly shown in FIG is also similar to Figure 12 same.

[0233] Figure 13 To include Figure 9 A schematic diagram of a deployment of a network device 10 with an antenna assembly is shown in FIG. Figure 13 The arrangement direction of the first room 1 and the second room 2 is perpendicular to the arrangement direction of the first feeding end 101 and the second feeding end 102.

[0234] Similarly, the network device causes the electric fields of the arrangement squares in the first room 1 and the second room 2 to be superimposed in phase, thereby enhancing radiation and improving the quality of communication between the terminal device in the first room 1 or the second room 2 and the network device.

[0235] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A network device (10), characterized in that: The network device (10) includes: A first radio frequency front-end module (210) and a second radio frequency front-end module (220); A transmission link (230), the transmission link (230) comprising a first power splitter (231), the first radio frequency front-end module (210) and the second radio frequency front-end module (220) both being connected to the first power splitter (231); A receiving link (240), the receiving link (240) comprising a second power splitter (241), the first radio frequency front-end module (210) and the second radio frequency front-end module (220) both being connected to the second power splitter (241); A substrate (130) and a plurality of antennas, the plurality of antennas being arranged on the substrate (130), the plurality of antennas comprising a first antenna (110) and a second antenna (120), both of which have a dielectric waveguide wavelength λ corresponding to a center frequency; The first radio frequency front-end module (210) is electrically connected to the first antenna (110), and the second radio frequency front-end module (220) is electrically connected to the second antenna (120).

2. The network device (10) according to claim 1, characterized in that The main lobe direction radiated by the first antenna (110) is parallel to the main lobe direction radiated by the second antenna (120).

3. The network device (10) according to claim 1, characterized in that A vertical projection of the first antenna (110) on the substrate (130) and a vertical projection of the second antenna (120) on the substrate (130) are symmetrical about a reference line.

4. The network device (10) according to any one of claims 1 to 3, characterized in that The network device (10) further includes: a first transmission line (310) and a second transmission line (320), wherein the first RF front-end module (210) is electrically connected to the feeding end of the first antenna (110) via the first transmission line (310), and the second RF front-end module (220) is electrically connected to the feeding end of the second antenna (120) via the second transmission line (320).

5. The network device (10) according to claim 4, characterized in that The first antenna (110) is a monopole antenna.

6. The network device (10) according to claim 5, characterized in that The first antenna (110) comprises a first monopole element (111), a second monopole element (112) and a third power divider (113); the third power divider (113) comprises a first conductive end (301), a second conductive end (302) and a third conductive end (303); the first conductive end (301) is electrically connected to the first monopole element (111); the second conductive end (302) is electrically connected to the second monopole element (112); and the third conductive end (303) serves as a feeding end of the first antenna (110).

7. The network device (10) according to claim 6, characterized in that The arrangement direction of the feeding end of the first antenna (110) and the feeding end of the second antenna (120) is perpendicular to the arrangement direction of the first conductive end (301) and the second conductive end (302).

8. The network device (10) according to claim 5, characterized in that The network device (10) further comprises: a first reflector (201) and a second reflector (202), wherein the first reflector (201) and the second reflector (202) are both arranged on the substrate (130), and the feeding end of the first antenna (110), the first reflector (201), the second reflector (202), and the feeding end of the second antenna (120) are arranged along a first direction.

9. The network device (10) according to claim 8, characterized in that Along the thickness direction of the substrate (130), the size of the first reflector (201) is greater than or equal to 0.5 times λ; along the first direction, the distance from the first reflector (201) to the feeding end of the first antenna (110) is 0.25λ.

10. The network device (10) according to claim 6, characterized in that The difference between the length of the first transmission line (310) and the length of the second transmission line (320) is an integer multiple of λ, and the distance from the feeding end of the first antenna (110) to the feeding end of the second antenna (120) is an integer multiple of λ; Alternatively, the difference between the length of the first transmission line (310) and the length of the second transmission line (320) is an odd multiple of 0.5λ, and the distance from the feeding end of the first antenna (110) to the feeding end of the second antenna (120) is an odd multiple of 0.5λ.

11. The network device (10) according to claim 10, characterized in that When the difference between the length of the first transmission line (310) and the length of the second transmission line (320) is an integer multiple of λ, and the distance from the feeding end of the first antenna (110) to the feeding end of the second antenna (120) is an integer multiple of λ, the distance from the first conductive end (301) to the second conductive end (302) is an integer multiple of λ; When the difference between the length of the first transmission line (310) and the length of the second transmission line (320) is an odd multiple of 0.5λ, and the distance from the feeding end of the first antenna (110) to the feeding end of the second antenna (120) is an odd multiple of 0.5λ, the distance from the first conductive end (301) to the second conductive end (302) is an odd multiple of 0.5λ.

12. The network device (10) according to claim 6, characterized in that The arrangement direction of the feeding end of the first antenna (110) and the feeding end of the second antenna (120) is parallel to the arrangement direction of the first conductive end (301) and the second conductive end (302).

13. The network device (10) according to claim 12, characterized in that The difference between the length of the first transmission line (310) and the length of the second transmission line (320) is an integer multiple of λ, and the distance from the feeding end of the first antenna (110) to the feeding end of the second antenna (120) is 0.7λ to 0.8λ.

14. The network device (10) according to claim 4, characterized in that The first antenna (110) is a dipole antenna, and the network device (10) further includes: a third reflector (203) and a fourth reflector (204), wherein the third reflector (203) and the fourth reflector (204) are both arranged on the substrate (130), and the feeding end of the first antenna (110), the third reflector (203), the fourth reflector (204) and the feeding end of the second antenna (120) are arranged along a first direction.

15. The network device (10) according to claim 14, characterized in that The network device (10) further comprises: a first director (205) and a second director (206), wherein the first director (205) and the second director (206) are both arranged on the substrate (130), and the first director (205), the feeding end of the first antenna (110), the feeding end of the second antenna (120) and the second director (206) are arranged along the first direction.

16. The network device (10) according to claim 14, characterized in that Along a direction perpendicular to the thickness direction of the substrate (130), a size of the third reflector (203) is greater than or equal to 0.5λ, and along the first direction, a distance from the third reflector (203) to the feeding end of the first antenna (110) is 0.25λ.

17. The network device (10) according to claim 14, characterized in that The difference between the length of the first transmission line (310) and the length of the second transmission line (320) is an integer multiple of λ, and the distance from the feeding end of the first antenna (110) to the feeding end of the second antenna (120) is an integer multiple of λ.

Images