Antenna device and interference suppression method

Abstract

The invention provides an antenna device and an interference suppression method. Each directional antenna unit of the antenna device is provided with a respective radiation area. The main control module is used for determining a first directional antenna unit and a second directional antenna unit from the plurality of directional antenna units based on the interference degree of each directional antenna unit under the condition that the antenna device is in a signal receiving state; in the signal receiving state, the interference degree of the first directional antenna unit is lower than that of the second directional antenna unit, and the main control module is further used for controlling the first directional antenna unit to receive signals and controlling the second directional antenna unit to be in a closed state in the signal receiving state; the signal receiving interference of an interference source on the antenna device is reduced, and the communication performance of the antenna device is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna device and an interference suppression method. Background Art

[0002] An antenna is an electronic device used to transmit or receive electromagnetic waves. It can convert electrical signals into electromagnetic waves that can propagate in free space, and can also receive electromagnetic waves and convert them into electrical signals.

[0003] In related technologies, antennas are easily interfered with by co-frequency signals emitted by co-frequency interference sources, which may cause the communication performance of the antenna to deteriorate. Summary of the Invention

[0004] The purpose of this application is to provide an antenna device and an interference suppression method, aiming to solve the problem of poor communication performance of antenna devices in traditional technologies.

[0005] A first aspect of an embodiment of the present application provides an antenna device, including:

[0006] A plurality of directional antenna units, each of the directional antenna units having its own radiation area;

[0007] a main control module, configured to, when the antenna device is in a signal receiving state, determine a first directional antenna unit and a second directional antenna unit from the plurality of directional antenna units based on a degree of interference of each of the directional antenna units, control the first directional antenna unit to receive signals, and control the second directional antenna unit to be in a closed state;

[0008] Wherein, in the signal receiving state, the interference degree of the first directional antenna unit is lower than the interference degree of the second directional antenna unit.

[0009] In some embodiments of the present application, the directional antenna unit is used to obtain a first electromagnetic signal in a signal receiving state, and output a first electrical signal based on the first electromagnetic signal; the main control module is used to determine the first directional antenna unit and the second directional antenna unit based on the signal parameters of the first electrical signals of multiple directional antenna units, and the signal parameters are parameters that can characterize the degree of interference of the corresponding directional antenna unit.

[0010] In some embodiments of the present application, the antenna device further includes a scanning unit, which is used to periodically acquire the first electrical signal, and the main control module is used to determine the first directional antenna unit and the second directional antenna unit based on the signal parameters of the most recently acquired first electrical signal.

[0011] In some embodiments of the present application, the signal parameter includes at least one of signal strength and packet loss rate.

[0012] In some embodiments of the present application, the radiation areas of the directional antenna units at least partially overlap or do not overlap at all.

[0013] In some embodiments of the present application, the radiation areas of a plurality of the directional antenna units are combined to form an omnidirectional radiation field.

[0014] In some embodiments of the present application, the antenna device includes a driving board and a radio frequency unit, and the radio frequency unit is used to obtain a second electrical signal output by the directional antenna unit when the antenna device is in a signal receiving state; wherein the radio frequency unit and the multiple directional antenna units are integrated on the driving board.

[0015] In some embodiments of the present application, the directional antenna unit includes a carrier medium and an antenna structure provided on the carrier medium, and the directional antenna unit satisfies at least one of the following conditions:

[0016] The antenna structure of the directional antenna unit is at least one of a microstrip antenna, a horn antenna, an antenna with a reflector, or other antennas;

[0017] The antenna structure of the directional antenna unit is at least one of a polygonal structure, a circular structure and an irregular curved surface structure;

[0018] A square unit in the plurality of directional antenna units that can accommodate one antenna structure is a minimum unit, and a side length C of the minimum unit and a wavelength λg of the electromagnetic wave in the carrier medium satisfy the following conditions: C=nλg, where n is 1 / 4, 1 / 2, or a positive integer;

[0019] The plurality of directional antenna units are spaced apart from each other, and the spacing d between two adjacent directional antenna units and the wavelength λg of the electromagnetic wave in the carrier medium satisfy the following conditions:

[0020] There are two directional antenna units, the two directional antenna units are spaced apart from each other, and the planes where the antenna structures of the two directional antenna units are located are parallel to each other;

[0021] The number of the directional antenna units is at least three, the at least three directional antenna units are arranged in a ring array, and the antenna structures of the at least three directional antenna units are in different planes;

[0022] The antenna structure of the directional antenna unit is made of conductive material;

[0023] The carrier medium may be at least one of air, polyester, polyimide, ABS engineering plastics, polyvinyl chloride, polyethylene, polypropylene, polycarbonate, cardboard, epoxy resin, glass and other non-metallic materials.

[0024] A second aspect of the present application further provides an interference suppression method, using an antenna device, wherein the antenna device includes a plurality of directional antenna units, each of the directional antenna units having a respective radiation area, and the interference suppression method includes:

[0025] Switching the antenna device to a signal receiving state;

[0026] Determining a first directional antenna unit and a second directional antenna unit from the plurality of directional antenna units based on the interference degree of each directional antenna unit; wherein, in the signal receiving state, the interference degree of the first directional antenna unit is lower than the interference degree of the second directional antenna unit;

[0027] The first directional antenna unit is controlled to receive signals and the second directional antenna unit is controlled to be in a closed state.

[0028] In some embodiments of the present application, determining the first directional antenna unit and the second directional antenna unit from the plurality of directional antenna units based on the interference degree of each directional antenna unit includes:

[0029] Acquire a first electromagnetic signal in a signal receiving state, and output a first electrical signal according to the first electromagnetic signal;

[0030] Acquire the first electrical signals of the plurality of directional antenna units, and determine the first directional antenna unit and the second directional antenna unit based on signal parameters of the plurality of the first electrical signals; the signal parameters are parameters that can characterize the degree of interference of the corresponding directional antenna units.

[0031] In some embodiments of the present application, obtaining first electrical signals of the plurality of directional antenna units and determining the first directional antenna unit and the second directional antenna unit based on signal parameters of the plurality of first electrical signals includes:

[0032] periodically acquiring the first electrical signal;

[0033] The first directional antenna unit and the second directional antenna unit are determined based on the signal parameters of the most recently acquired first electrical signal.

[0034] A third aspect of the present application further provides a communication device comprising the above-mentioned antenna device.

[0035] The advantageous effects of the embodiments of the present invention compared with the prior art are as follows: the above-mentioned antenna device and interference suppression method, the antenna device includes multiple directional antenna units and a main control module, each directional antenna unit has its own radiation area; the main control module is used to determine a first directional antenna unit and a second directional antenna unit from the multiple directional antenna units based on the interference degree of each directional antenna unit when the antenna device is in a signal receiving state; in the signal receiving state, the interference degree of the first directional antenna unit is lower than the interference degree of the second directional antenna unit, and the main control module is also used to control the first directional antenna unit to receive signals and control the second directional antenna unit to be in a closed state in the signal receiving state; in the present application, when the antenna device is in a signal receiving state, the first directional antenna unit with a low interference degree can be turned on and the second directional antenna unit with a high interference degree can be turned off, which is beneficial to reducing the interference source on the signal reception of the antenna device, and thus is beneficial to improving the communication performance of the antenna device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the framework structure of an antenna device provided in one embodiment of the present application;

[0037] Figure 2 A schematic diagram of the framework structure of an antenna device provided in another embodiment of the present application;

[0038] Figure 3 A schematic diagram of the radiation area of an antenna device provided in one embodiment of the present application;

[0039] Figure 4 A schematic structural diagram of an antenna device provided in one embodiment of the present application;

[0040] Figure 5 A schematic structural diagram of a directional antenna unit provided in one embodiment of the present application;

[0041] Figure 6 A schematic structural diagram of a directional antenna unit provided in another embodiment of the present application;

[0042] Figure 7 Another structural schematic diagram of a directional antenna unit provided in another embodiment of the present application;

[0043] Figure 8 A schematic diagram of the steps of an interference suppression method provided in one embodiment of the present application;

[0044] Figure 9 A schematic diagram of the steps of an interference suppression method provided in another embodiment of the present application;

[0045] Figure 10 A schematic diagram of the steps of an interference suppression method provided in yet another embodiment of the present application.

[0046] Specific element symbol description: 100-main control module, 200-directional antenna unit, 210-antenna structure, 220-carrier medium, 230-reflector, 300-scanning unit, 400-radiation area. DETAILED DESCRIPTION

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

[0048] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0049] It should be understood that the terms "length", "width", "up", "down", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0050] Furthermore, the terms "first" and "second" 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 defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0051] It's important to note that antennas, as key electronic components for transmitting or receiving electromagnetic waves, are responsible for converting electrical signals into electromagnetic waves propagating in free space, making them indispensable for communications. However, in related technologies, antennas are highly susceptible to interference from co-frequency signals emitted by co-frequency interference sources, which can degrade communication performance.

[0052] Electromagnetic interference (EMI) is extremely common in daily life and takes various forms. It can be broadly categorized as human-induced and natural. Human-induced interference sources include electromagnetic emissions from radio stations, various communication systems, and other systems, as well as electromagnetic radiation from household appliances and smart devices. Natural interference includes lightning discharges, electrostatic discharges, and atmospheric electromagnetic fields. The combined effects of these factors create a severe electromagnetic interference environment for electronic products.

[0053] Co-channel electromagnetic interference (CMI) refers to the phenomenon in which two or more signals of the same frequency interfere with each other at the receiving end. When the signals have identical carrier frequencies, the receiver cannot effectively distinguish them, severely impacting its normal operation. In indoor environments where wireless devices are deployed, many wireless devices, such as Wi-Fi based on IEEE802.11, ZigBee based on IEEE802.15.4, and Bluetooth based on IEEE802.15.1, operate in the unlicensed 2.4 GHz ISM band. Due to their widespread use, these devices are highly susceptible to CMI during communications. This CMI significantly impacts wireless communication systems such as Wi-Fi, ZigBee, and Bluetooth operating in this frequency band. For example, during Wi-Fi communications, CMI from ZigBee, Bluetooth, and other Wi-Fi devices not only wastes resources but also degrades communication performance.

[0054] Based on this, the present application improves the relevant antenna device.

[0055] See also Figure 1 , Figure 1 The schematic diagram of the framework structure of the antenna device provided in this embodiment is shown. The antenna device of this embodiment includes multiple directional antenna units 200 and a main control module 100. Each directional antenna unit 200 has its own radiation area 400; the main control module 100 is used to determine the first directional antenna unit 200 and the second directional antenna unit 200 from the multiple directional antenna units 200 based on the interference level of each directional antenna unit 200 when the antenna device is in a signal receiving state; wherein, in the signal receiving state, the interference level of the first directional antenna unit 200 is lower than the interference level of the second directional antenna unit 200, and the main control module 100 is also used to control the first directional antenna unit 200 to receive signals and control the second directional antenna unit 200 to be in a closed state in the signal receiving state.

[0056] It should be explained that the directional antenna unit 200 is an antenna unit that can concentrate electromagnetic waves in a specific direction for transmission or reception. The signal reception state means that in this state, the antenna device can receive external electromagnetic wave signals and can convert external electromagnetic wave signals into electrical signals. The radiation area 400 refers to the spatial range where the electromagnetic wave energy is relatively concentrated when the directional antenna unit 200 transmits or receives electromagnetic waves. Each directional antenna unit 200 has its own specific radiation area 400, and the signal strength and propagation effect are better within this radiation area 400.

[0057] The main control module 100 performs control and management functions. It can operate each directional antenna unit 200 in the antenna assembly, for example, selecting whether a specific directional antenna unit 200 is on or off. The on state means that the directional antenna unit 200 is able to receive / transmit and process signals normally. The off state means that the directional antenna unit 200 is not receiving or processing signals.

[0058] It can be understood that in the antenna device in the embodiment of the present application, multiple directional antenna units 200 work together, and each directional antenna unit 200 has its own unique radiation area 400; since there will be more or less interference sources in the application scenarios of the device, these interference sources may appear in the radiation area 400 of the directional antenna unit 200, thereby affecting the communication performance of the directional antenna unit 200.

[0059] When the antenna device is receiving signals, the main control module 100 assesses the interference levels of each directional antenna unit 200 and selects at least one directional antenna unit 200 with a lower level of interference as the first directional antenna unit 200. Conversely, the main control module 100 selects at least one directional antenna unit 200 with a higher level of interference as the second directional antenna unit 200. The main control module 100 then controls the first directional antenna unit 200 to be powered on, enabling it to receive signals. The second directional antenna unit 200 is then controlled to be powered off, preventing it from receiving signals. This allows the directional antenna units 200 with the lowest level of interference to be effectively utilized for communication, thereby improving the communication performance of the antenna device.

[0060] Current antenna devices are susceptible to interference from co-frequency signals from interference sources, resulting in poor communication performance. However, in this application, the main control module 100 selects the first directional antenna unit 200, which is less susceptible to interference, for signal reception, and shuts down the second directional antenna unit 200, which is more susceptible to interference. This helps avoid interference sources, improves the robustness of the antenna device, and effectively improves the signal-to-noise ratio and sensitivity of the antenna device, thereby improving the communication performance of the antenna device.

[0061] In some embodiments, the main control module 100 may select some antennas that are less susceptible to interference as the first antenna unit, and the remaining antennas as the second antenna unit.

[0062] In some embodiments, the number of the first antenna units may be one or more, and the number of the second antenna units may be one or more.

[0063] In some embodiments of the present application, the directional antenna unit 200 is used to obtain a first electromagnetic signal in a signal receiving state and output a first electrical signal based on the first electromagnetic signal; the main control module 100 is used to determine the first directional antenna unit 200 and the second directional antenna unit 200 based on the signal parameters of the first electrical signals of multiple directional antenna units 200, and the signal parameters are parameters that can characterize the degree of interference of the corresponding directional antenna unit 200.

[0064] It should be explained that the first electromagnetic signal is an electromagnetic wave signal that can be wirelessly transmitted in the carrier medium 220, and usually carries the communication data of the external device; the first electrical signal is the electrical signal converted by the directional antenna unit 200 based on the first electromagnetic signal, so that the device can identify and analyze the communication data inside the signal.

[0065] It is understandable that the first directional antenna unit 200 is less susceptible to interference from interference sources, and therefore the first electrical signal output by the first directional antenna unit 200 is relatively closer to the ideal signal. Correspondingly, the second directional antenna unit is more susceptible to interference from interference sources, and therefore the first electrical signal output by the second directional antenna unit 200 is relatively more different from the ideal signal. Therefore, the first and second directional antenna units 200 can be selected by analyzing the signal parameters of the first electrical signal.

[0066] In some embodiments of this application, please refer to Figure 2 , Figure 2 A schematic diagram of the framework structure of the antenna device provided in this embodiment is shown; the antenna device of this embodiment also includes a scanning unit 300, which is used to periodically obtain a first electrical signal, and the main control module 100 is used to determine the first directional antenna unit 200 and the second directional antenna unit 200 based on the signal parameters of the most recently obtained first electrical signal.

[0067] It is understandable that since the application scenario of the antenna device may change at any time, the location of the interference source may also change. In this embodiment, the scanning unit 300 periodically obtains the first electrical signal, so that the main control module 100 can select the antenna unit according to the latest signal situation, so that the antenna device can adapt to the dynamic changes of the electromagnetic environment in real time, ensure the stability and reliability of signal reception, and can work normally even in scenarios where the interference source is constantly changing.

[0068] In some embodiments, the acquisition cycle of the scanning unit 300 may be 30 seconds.

[0069] In some embodiments of the present application, the signal parameter includes at least one of signal strength and packet loss rate.

[0070] It should be explained that signal strength is used to indicate the strength of a signal. In this embodiment, the signal strength of the first electrical signal reflects the power of the first electromagnetic signal received by the directional antenna unit 200 after being converted into a first electrical signal. The higher the signal strength, the stronger the received signal is and the less likely it is to be interfered with. The packet loss rate refers to the proportion of data packets lost during data transmission, which reflects the integrity of signal transmission. A higher packet loss rate indicates that the signal was interfered with during transmission, resulting in the loss of some data, indicating that the corresponding directional antenna unit 200 is subject to a higher degree of interference.

[0071] It is understandable that if the main control unit selects based on signal strength, the directional antenna unit 200 with high signal strength will be preferentially selected as the first directional antenna unit 200, and the directional antenna unit 200 with low signal strength will be preferentially selected as the second directional antenna unit 200; if the main control unit selects based on packet loss rate, the directional antenna unit 200 with low packet loss rate will be preferentially selected as the first directional antenna unit 200, and the directional antenna unit 200 with high packet loss rate will be preferentially selected as the second directional antenna unit 200. The main control unit can also be selected based on a combination of signal strength and packet loss rate, which will not be elaborated here.

[0072] In some embodiments, the signal strength of the directional antenna unit 200 can be compared with a preset strength value, and the directional antenna unit 200 with a signal strength less than the preset strength value can be selected as the second directional antenna unit 200, and the directional antenna unit 200 with a signal strength greater than the preset strength value can be selected as the first directional antenna unit 200.

[0073] In some embodiments, the signal strength is a received signal strength indicator (RSSI), and the preset strength value range is -100dBm to -10dBm. It can be understood that the closer the signal strength is to 0, the stronger the signal. In the embodiment of the present application, the signal strength of the first electrical signal of the directional antenna unit 200 is between -100dBm and -10dBm, indicating that the directional antenna unit 200 can normally receive electromagnetic wave signals. If it is not within this range, the electromagnetic wave signal cannot be received normally.

[0074] In some embodiments, the packet loss rate of a directional antenna unit 200 can be compared with a preset packet loss rate, and a first antenna unit and a second antenna unit can be selected from directional antenna units 200 having a packet loss rate higher than the preset packet loss rate. It is understood that directional antenna units 200 having a packet loss rate lower than the preset packet loss rate are considered to have very low interference levels and can remain in a normally open state. Directional antenna units 200 having a packet loss rate higher than the preset packet loss rate are considered to have moderate interference levels and, therefore, it is necessary to select antennas with relatively low interference levels and keep them in an open state, while antennas with relatively high interference levels should be switched off.

[0075] In some embodiments, the preset packet loss rate may be 30%.

[0076] In some embodiments of the present application, the process of selecting the first antenna unit and the second antenna unit includes: sequentially testing the packet loss rate and signal strength of directional antenna unit 1, directional antenna unit 2, ..., and directional antenna unit n; selecting m directional antenna units that meet a qualified packet loss rate from the n directional antenna units; then selecting the directional antenna unit with the highest signal strength from the m directional antenna units as the first antenna unit; and the remaining directional antenna units as the second antenna units. If no directional antenna unit meets the qualified packet loss rate, then selecting the directional antenna unit with the lowest packet loss rate from the n directional antenna units as the first antenna unit, and the remaining directional antenna units as the second antenna units.

[0077] It is understandable that the directional antenna unit 200 with the highest signal strength may be one or more directional antenna units 20 with a strength value higher than a preset value, or may be a directional antenna unit 200 with the highest signal strength.

[0078] In some embodiments, the packet loss rate qualification rate may be 10%.

[0079] In some embodiments of the present application, the radiation areas 400 of the directional antenna units 200 at least partially overlap (e.g. Figure 3 as shown) or no overlap at all.

[0080] It is understandable that if Figure 3 As shown, Figure 3 The shaded area is the overlapping area of two adjacent radiation areas 400. The radiation areas 400 of the multiple directional antenna units 200 can form a radiation field area with complementary directivities.

[0081] In some embodiments of this application, please continue to refer to Figure 3 In this embodiment, the radiation areas 400 of the multiple directional antenna units 200 are combined to form an omnidirectional radiation field. It can be understood that the omnidirectional radiation field refers to an area that can radiate uniformly in all directions.

[0082] In some embodiments of the present application, the antenna device includes a driving board and a radio frequency unit. The radio frequency unit is used to output a second electrical signal to the directional antenna unit 200 when the antenna device is in a signal transmitting state, and the directional antenna unit 200 outputs a second electromagnetic signal based on the second electrical signal; and is used to obtain the first electrical signal output by the directional antenna unit 200 when the antenna device is in a signal receiving state; wherein the radio frequency unit and multiple directional antenna units 200 are integrated on the driving board.

[0083] It needs to be explained that the driving board is a circuit board that provides physical support and electrical connection for the radio frequency unit and the directional antenna unit 200; the radio frequency unit is the component responsible for obtaining the first electrical signal output by the directional antenna unit 200 when the directional antenna unit 200 is in a signal receiving state, and outputting a second electrical signal to the directional antenna unit 200 in a signal transmitting state.

[0084] It can be understood that in the embodiment of the present application, the radio frequency unit and multiple directional antenna units 200 are integrated on the driving board, which is conducive to improving the integration level of the antenna device and further helping to reduce the size of the antenna device.

[0085] In some embodiments of the present application, the directional antenna unit 200 includes a carrier medium 220 and an antenna structure 210 disposed on the carrier medium 220. The directional antenna unit 200 satisfies at least one of the following conditions:

[0086] See also Figure 4 , Figure 4 The directional antenna unit 200 provided in this embodiment is shown in the structural diagram; the antenna structure 210 of the directional antenna unit 200 in this embodiment is a microstrip antenna, a horn antenna and an antenna with a reflector 230 (such as Figure 4 Specifically, the antenna with a reflector 230 includes a reflector 230, a carrier medium 220, and an antenna structure 210. The reflector 230 and the carrier medium 220 are spaced apart, and the antenna structure 210 is disposed on the carrier medium 220.

[0087] The antenna structure 210 of the directional antenna unit 200 of this embodiment is at least one of a polygonal structure, a circular structure, and an irregular curved surface structure. Specifically, the antenna structure 210 can be a triangle, rectangle, pentagon, circle, or other closed shape. The antenna structure 210 can also be a triangle, rectangle, pentagon, circle, or other solid shape.

[0088] See also Figure 5 , Figure 5The schematic diagram of the structure of the directional antenna unit 200 provided in this embodiment is shown. Among the multiple directional antenna units 200 of this embodiment, a square unit capable of accommodating one antenna structure 210 is the smallest unit. The side length C of the smallest unit and the wavelength λg of the electromagnetic wave in the carrier medium 220 satisfy the following conditions: C = nλg, where n is 1 / 4, 1 / 2, or a positive integer. Specifically, the free-space wavelength is λ. Depending on the different dielectric constants of the carrier medium 220, λ should be corrected to an equivalent wavelength λg related to the dielectric constant.

[0089] See also Figure 6 and Figure 7 , Figure 6 FIG. 2 shows a schematic structural diagram of a directional antenna unit 200 provided in this embodiment. Figure 7 Another structural schematic diagram of the directional antenna unit 200 provided in this embodiment is shown; in this embodiment, multiple directional antenna units 200 are arranged at intervals from each other, and the spacing d between two adjacent directional antenna units 200 and the wavelength λg of the electromagnetic wave in the carrier medium 220 meet the following conditions:

[0090] Please continue reading Figure 7 In this embodiment, the number of directional antenna units 200 is two, the two directional antenna units 200 are spaced apart from each other, and the planes where the antenna structures 210 of the two directional antenna units 200 are located are parallel to each other.

[0091] Please continue reading Figure 6 In this embodiment, the number of directional antenna units 200 is at least three, the at least three directional antenna units 200 are arranged in a circular array, and the antenna structures 210 of the at least three directional antenna units 200 are in different planes.

[0092] The antenna structure 210 of the directional antenna unit 200 of this embodiment is made of a conductive material. Specifically, the conductive material is a conductive metal material or a conductive non-metallic material. For example, the conductive metal material may be gold, silver, copper, etc. The conductive non-metallic material may be graphite, conductive ink, conductive grease, conductive polymer, etc.

[0093] The carrier medium 220 of this embodiment can be at least one of air, polyester, polyimide, ABS engineering plastic, polyvinyl chloride, polyethylene, polypropylene, polycarbonate, cardboard, epoxy resin, glass, and other non-metallic materials.

[0094] In an embodiment of the present application, the antenna device includes multiple directional antenna units 200. The directional antenna units 200 can be formed by etching an antenna pattern onto a PCB or other non-metallic medium using metal etching technology. The multiple directional antenna units 200 are arranged in a specific order on a substrate to form an overall antenna array device.

[0095] In an embodiment of the present application, the antenna structure 210 of the directional antenna unit 200 can be printed on a non-metallic medium such as a plastic shell or glass through printing technology. In order to ensure the directionality of the antenna, the antenna pattern can be printed on the upper and lower surfaces of the non-metallic medium. Finally, the individual directional antenna units 200 are arranged and combined to form an overall antenna array device.

[0096] In some embodiments, the conductor of the directional antenna unit 200 is conductive ink.

[0097] In an embodiment of the present application, a block of metal can be made into a certain shape (such as a horn shape, etc.) through a stamping process to form a directional effect, and finally the various antenna units are arranged and combined to form an overall antenna array device.

[0098] In some embodiments, the antenna structure 210 may be an irregular curved surface (concave, convex) or the like, and utilizes its own focusing principle to shape the radiation area 400, which is then arranged and combined to form an overall antenna array device.

[0099] In the embodiment of the present application, taking the control group and the experimental group as examples, the control group is a conventional rod antenna device, and the experimental group is a three-antenna array device provided by the present application (such as Figure 6 As shown). The operating frequency bands of both antenna devices are 2.4~2.5GHz. The field pattern of the main coverage surface of the antenna of the control group is omnidirectional, with a gain of 0dBi; each antenna unit of the experimental group is responsible for a radiation area of 400, and the maximum gain is 3.5dBi; the field patterns of the three antenna units complement each other to form a larger radiation area of 400; and the angle with the worst gain is almost the same as that of the rod antenna, that is, the gain of the main coverage surface of the three-antenna array device ≥ the rod antenna device; because the gain in all directions of the three-antenna array device is higher than that of the rod antenna, longer-distance communication can be achieved, and omnidirectionality can also be guaranteed. In the embodiment of the present application, the high-gain area of the main coverage surface of the antenna of the three-antenna array device can be set to receive useful signals, while the low-gain area is aligned with the interference signal to suppress or weaken the interference source.

[0100] Specifically, the antenna devices of the experimental group and the control group were placed in a test environment (multiple rooms set up in parallel), and two co-frequency interference sources were set up and in a constant working state; the router in a room in the test environment was used as the signal transmitter, and the experimental group and the control group were set up in an indoor interference environment and in a signal receiving state. It can be seen that under co-frequency interference, the three-antenna array device can communicate with more distant rooms than the rod antenna device. In general, the three-antenna array device still maintains its omnidirectional performance under co-frequency interference, indicating that it has good anti-interference performance; the three-antenna array device has a good suppression effect on co-frequency interference, and has better ability to send and receive useful signals, which is conducive to improving the communication performance of the device.

[0101] Furthermore, in order to better implement the antenna device in any of the above embodiments, please refer to Figure 8 , Figure 8 A schematic diagram of the steps of the interference suppression method provided in this embodiment is shown; based on the above-mentioned antenna device, an interference suppression method is also provided, which is applied to the above-mentioned antenna device. The interference suppression method includes:

[0102] S100: Switching the antenna device to a signal receiving state; specifically, the antenna device may be actively or passively switched to a signal receiving state, and the antenna device may be switched to the signal receiving state by a main control unit.

[0103] S200: Determine, from the plurality of directional antenna units 200, a first directional antenna unit 200 and a second directional antenna unit 200 based on the interference levels of the directional antenna units 200; wherein, in a signal receiving state, the interference level of the first directional antenna unit 200 is lower than the interference level of the second directional antenna unit 200;

[0104] Specifically, when the antenna device is in a signal receiving state, the main control module 100 will judge the interference conditions of each directional antenna unit 200, and select at least one with a lower degree of interference from multiple directional antenna units 200 as the first directional antenna unit 200, and relatively select at least one with a relatively higher degree of interference as the second directional antenna unit 200.

[0105] S300: Controlling the first directional antenna unit 200 to receive signals and disabling the second directional antenna unit 200. Specifically, the main control module 100 controls the first directional antenna unit 200 to be on, enabling it to receive signals; while the second directional antenna unit 200 is controlled to be off, not participating in signal reception. This allows the directional antenna unit 200, which is less susceptible to interference, to be effectively utilized for communication, thereby improving the communication performance of the antenna assembly.

[0106] Current antenna devices are susceptible to interference from co-frequency signals from interference sources, resulting in poor communication performance. However, in this application, the main control module 100 selects the first directional antenna unit 200, which is less susceptible to interference, for signal reception, and shuts down the second directional antenna unit 200, which is more susceptible to interference. This helps avoid interference sources, improves the robustness of the antenna device, and effectively improves the signal-to-noise ratio and sensitivity of the antenna device, thereby improving the communication performance of the antenna device.

[0107] In some embodiments of this application, please refer to Figure 9 , Figure 9 The following is a schematic diagram showing the steps of the interference suppression method provided by this embodiment; step S200 includes:

[0108] S210: Acquire a first electromagnetic signal in a signal receiving state, and output a first electrical signal based on the first electromagnetic signal; specifically, the first electromagnetic signal is an electromagnetic wave signal that can be wirelessly transmitted in the carrier medium 220, usually carrying communication data of an external device; the first electrical signal is an electrical signal converted by the directional antenna unit 200 based on the first electromagnetic signal, so that the device can identify and analyze the communication data inside the signal.

[0109] S220: Obtain first electrical signals of multiple directional antenna units 200, and determine the first directional antenna unit 200 and the second directional antenna unit 200 based on signal parameters of the multiple first electrical signals, where the signal parameters are parameters that can characterize the degree of interference of the corresponding directional antenna unit 200.

[0110] It is understandable that the first directional antenna unit 200 is less susceptible to interference from interference sources, and therefore the first electrical signal output by the first directional antenna unit 200 is relatively closer to the ideal signal. Correspondingly, the second directional antenna unit is more susceptible to interference from interference sources, and therefore the first electrical signal output by the second directional antenna unit 200 is relatively more different from the ideal signal. Therefore, the first and second directional antenna units 200 can be selected by analyzing the signal parameters of the first electrical signal.

[0111] In some embodiments of this application, please refer to Figure 10 , Figure 10 The following is a schematic diagram showing the steps of the interference suppression method provided in this embodiment; step S220 includes:

[0112] S221 : periodically acquiring a first electrical signal; specifically, periodically acquiring the first electrical signal through the scanning unit 300 .

[0113] S222: Determine the first directional antenna unit 200 and the second directional antenna unit 200 based on the signal parameters of the most recently acquired first electrical signal. It is understandable that since the application scenario of the antenna device may change at any time, the location of the interference source may also change. In this embodiment, the scanning unit 300 periodically acquires and updates the first electrical signal, so that the main control module 100 can select an antenna unit based on the latest signal situation, allowing the antenna device to adapt to the dynamic changes of the electromagnetic environment in real time, ensuring the stability and reliability of signal reception, and can work normally even in scenarios where the interference source is constantly changing.

[0114] Furthermore, in order to better implement the antenna device in any of the above embodiments, based on the above antenna device, the present application also provides a communication device including the above antenna device.

[0115] In some embodiments, the communication device may be a lamp.

[0116] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0117] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0118] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0119] Similarly, it should be noted that, in order to simplify the presentation of this application and thus facilitate understanding of one or more embodiments of the invention, the foregoing descriptions of the embodiments of this application sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, an embodiment may have fewer features than all of the features of a single embodiment disclosed above.

[0120] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. An antenna device, characterized in that: The antenna device comprises: A plurality of directional antenna units, each of the directional antenna units having a respective radiation area; a main control module, configured to, when the antenna device is in a signal receiving state, determine a first directional antenna unit and a second directional antenna unit from the plurality of directional antenna units based on a degree of interference of each of the directional antenna units, control the first directional antenna unit to receive signals, and control the second directional antenna unit to be in a closed state; Wherein, in the signal receiving state, the interference degree of the first directional antenna unit is lower than the interference degree of the second directional antenna unit.

2. The antenna device according to claim 1, wherein The directional antenna unit is used to obtain a first electromagnetic signal in a signal receiving state and output a first electrical signal based on the first electromagnetic signal; the main control module is used to determine the first directional antenna unit and the second directional antenna unit based on the signal parameters of the first electrical signals of multiple directional antenna units, and the signal parameters are parameters that can characterize the degree of interference of the corresponding directional antenna unit.

3. The antenna device according to claim 2, wherein: The antenna device further includes a scanning unit configured to periodically acquire the first electrical signal. The main control module is configured to determine the first directional antenna unit and the second directional antenna unit based on signal parameters of the most recently acquired first electrical signal.

4. The antenna device according to claim 2 or 3, characterized in that The signal parameter includes at least one of signal strength and packet loss rate.

5. The antenna device according to claim 1, wherein The radiation areas of the directional antenna units at least partially overlap or do not overlap at all.

6. The antenna device according to claim 5, wherein: The radiation areas of the multiple directional antenna units are combined to form an omnidirectional radiation field area.

7. The antenna device according to claim 5, wherein: The antenna device includes a driving board and a radio frequency unit, and the radio frequency unit is used to obtain a first electrical signal output by the directional antenna unit when the antenna device is in a signal receiving state; wherein the radio frequency unit and the multiple directional antenna units are integrated on the driving board.

8. The antenna device according to claim 5, wherein: The directional antenna unit includes a carrier medium and an antenna structure provided on the carrier medium, and the directional antenna unit satisfies at least one of the following conditions: The antenna structure of the directional antenna unit is at least one of a microstrip antenna, a horn antenna and an antenna with a reflector; The antenna structure of the directional antenna unit is at least one of a polygonal structure, a circular structure and an irregular curved surface structure; A square unit in the plurality of directional antenna units that can accommodate one antenna structure is a minimum unit, and a side length C of the minimum unit and a wavelength λg of the electromagnetic wave in the carrier medium satisfy the following conditions: C=nλg, where n is 1 / 4, 1 / 2, or a positive integer; The plurality of directional antenna units are spaced apart from each other, and the spacing d between two adjacent directional antenna units and the wavelength λg of the electromagnetic wave in the carrier medium satisfy the following conditions: There are two directional antenna units, the two directional antenna units are spaced apart from each other, and the planes where the antenna structures of the two directional antenna units are located are parallel to each other; The number of the directional antenna units is at least three, the at least three directional antenna units are arranged in a ring array, and the antenna structures of the at least three directional antenna units are in different planes; The antenna structure of the directional antenna unit is made of conductive material; The carrier medium may be at least one of air, polyester, polyimide, ABS engineering plastic, polyvinyl chloride, polyethylene, polypropylene, polycarbonate, cardboard, epoxy resin, and glass.

9. An interference suppression method, characterized in that: An antenna device is used, the antenna device including a plurality of directional antenna units, each of the directional antenna units having a respective radiation area, and the interference suppression method includes: Switching the antenna device to a signal receiving state; Determining a first directional antenna unit and a second directional antenna unit from the plurality of directional antenna units based on the interference degree of each directional antenna unit; wherein, in the signal receiving state, the interference degree of the first directional antenna unit is lower than the interference degree of the second directional antenna unit; The first directional antenna unit is controlled to receive signals and the second directional antenna unit is controlled to be in a closed state.

10. The interference suppression method according to claim 9, characterized in that: The determining, based on the interference degree of each of the directional antenna units, a first directional antenna unit and a second directional antenna unit from the plurality of directional antenna units comprises: Acquire a first electromagnetic signal in a signal receiving state, and output a first electrical signal according to the first electromagnetic signal; Acquire the first electrical signals of the plurality of directional antenna units, and determine the first directional antenna unit and the second directional antenna unit based on signal parameters of the plurality of the first electrical signals; the signal parameters are parameters that can characterize the degree of interference of the corresponding directional antenna units.

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