Feed network assembly, phase shifter, and antenna device

Abstract

Disclosed in the present invention are a feed network assembly, a phase shifter, and an antenna device, for use in solving the problem that resonance will be formed in opposite areas of metal plates, which affects the transmission efficiency. The present application provides a feed network assembly, comprising a cavity and a transmission structure. The cavity comprises an accommodating cavity; the accommodating cavity is used for accommodating the transmission structure; the cavity further has a first sidewall; the first sidewall has a first sub sidewall and a second sub sidewall which are oppositely arranged and capacitively coupled; and at least one slot is formed in at least one of the first sub sidewall and the second sub sidewall which are oppositely arranged and capacitively coupled. In the present application, by forming slots in the first sub sidewall and the second sub sidewall which are oppositely arranged and capacitively coupled, oppositely arranged areas are reduced, thereby reducing resonance, and thus improving the transmission efficiency.

Description

Feed network component, phase shifter, and antenna device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 13, 2023, with application number 202311508705.X ​​and application name “A feed network component, phase shifter, and antenna device,” the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the field of touch technology, and in particular to a feeding network component, a phase shifter, and an antenna device. Background Art

[0003] The feed network is the core component of the base station antenna, and its function is to change the phase of the radiating unit to achieve the downtilt of the antenna beam. As shown in Figure 1A, the feed network in the related art includes a transmission structure and a closed metal cavity. The transmission structure includes a strip line and a phase-shifting medium, wherein the strip line is located between the upper and lower metal floors, and the phase-shifting medium is located on both sides of the strip line and between the strip line and the metal floor. The closed metal cavity is usually made of profiles or sheet metal, and the adjacent two walls are directly connected to form a four-sided closed cavity structure to constrain the electric field inside the feed network from radiating outward. However, in this method, the cavity processing cost is high. In order to reduce costs, other related technologies use capacitive coupling to construct a housing cavity, but in this method, since the capacitive coupling is achieved by the relative arrangement of the metal plates, resonance will be formed in the relative areas of the metal plates, affecting the transmission efficiency.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a feeding network component, a phase shifter, and an antenna device to solve the technical problems in the prior art.

[0006] In a first aspect, an embodiment of the present application provides a feed network component, wherein the feed network includes: a cavity and a transmission structure, wherein: the cavity includes a accommodating cavity, which is used to accommodate the transmission structure; the cavity also includes a first side wall, the first side wall includes a first sub-side wall and a second sub-side wall that are oppositely arranged and capacitively coupled, and at least one of the first sub-side wall and the second sub-side wall that are oppositely arranged and capacitively coupled includes at least one slot.

[0007] In the present application, by providing slots in the first sub-sidewall and the second sub-sidewall that are oppositely arranged and capacitively coupled, the area of ​​the opposite arrangement is reduced, thereby reducing resonance and improving transmission efficiency.

[0008] In some possible embodiments, the first sidewall is a sidewall of the accommodating cavity, and the first sub-sidewall is integrally connected to the sidewall of the accommodating cavity.

[0009] In this application, a variety of configuration methods of the first sub-side wall are provided, making this application more universal.

[0010] In some possible embodiments, in the first sub-sidewall and the second sub-sidewall that are oppositely arranged and capacitively coupled, the first sub-sidewall includes at least two first grooves and the second sub-sidewall includes at least two second grooves; the first grooves and the second grooves are staggered.

[0011] In the present application, when there are a large number of slots, the slots may be staggered to ensure the stability of the feed network component.

[0012] In some possible embodiments, in the first sub-sidewall and the second sub-sidewall that are oppositely arranged and capacitively coupled, the first sub-sidewall includes at least two first grooves and the second sub-sidewall includes at least two second grooves; the first groove and the second groove are oppositely arranged.

[0013] In the present application, the slots can also be arranged relatively, making the present application more universal.

[0014] In some possible embodiments, the feeding network further includes: at least one intermediate baffle, which is arranged in the accommodating cavity, and the intermediate baffle divides the accommodating cavity into at least two sub-accommodating cavities, each of which is provided with a transmission structure; at least one end of the intermediate baffle is coupled to the side wall of the accommodating cavity.

[0015] In the present application, the accommodating cavity can be divided into multiple sub-accommodating cavities by setting an intermediate baffle, so that the transmission structures in different sub-accommodating cavities can be connected to the radiating units of the antenna device with different polarizations, and then the needs of the radiating units with different polarizations can be met through one feeding network, which simplifies the structure of the feeding network and reduces costs.

[0016] In some possible embodiments, the target end is arranged opposite to the side wall of the accommodating cavity, and at least one of the oppositely arranged target end and the side wall of the accommodating cavity includes at least one slot; the target end is an end of the intermediate baffle coupled to the side wall of the accommodating cavity.

[0017] In the present application, slots are provided in the target end and the side wall of the accommodating cavity that are oppositely arranged and capacitively coupled, thereby reducing the area of ​​the opposite arrangement, thereby reducing resonance and improving transmission efficiency.

[0018] In some possible embodiments, the target end and the side wall of the accommodating cavity are arranged opposite to each other, the target end includes at least two third slots, and the side wall of the accommodating cavity includes at least two fourth slots; the third slots and the fourth slots are arranged alternately.

[0019] In the present application, when there are a large number of slots, the slots may be staggered to ensure the stability of the feed network component.

[0020] In some possible embodiments, the target end and the side wall of the accommodating cavity are arranged opposite to each other, the target end includes at least two third slots, and the side wall of the accommodating cavity includes at least two fourth slots; the third slot and the fourth slot are arranged opposite to each other.

[0021] In the present application, the slots can also be arranged relatively, making the present application more universal.

[0022] In some possible embodiments, at least one of the first sub-side wall and the second sub-side wall that are relatively arranged and capacitively coupled includes at least two grooves arranged along the first direction, and among the at least two grooves arranged along the first direction, the distance between adjacent grooves along the first direction is a preset distance.

[0023] In some possible embodiments, the preset distance is an integer multiple of one quarter of an operating wavelength, where the operating wavelength is an operating wavelength of an antenna device corresponding to the feed network component.

[0024] In some possible embodiments, the depth of the groove along the second direction is greater than the width of the coupling region; the coupling region is the coupled connection region where the groove is located.

[0025] In the present application, by setting the depth of the groove to be greater than the width of the coupling region, the area where the first sub-sidewall and the second sub-sidewall are arranged opposite to each other is reduced, thereby reducing the resonance.

[0026] In some possible embodiments, the length of the slot along the first direction is less than half of an operating wavelength, where the operating wavelength is the operating wavelength of the antenna device corresponding to the feed network component.

[0027] In the present application, by setting the distance between adjacent slots to be smaller than the preset distance, the metal on both sides of the slots is prevented from forming a coupled connection due to the gap in the middle, thereby preventing resonance, thereby further ensuring the transmission efficiency.

[0028] In a second aspect, another embodiment of the present application further provides a phase shifter, which includes any feed network component of the first aspect.

[0029] The phase shifter provided in the embodiment of the present application is easy to process and assemble by providing the above-mentioned feeding network, thereby reducing costs.

[0030] In a third aspect, another embodiment of the present application further provides an antenna device, comprising a radiating unit and any one of the feed network components of the first aspect; wherein the radiating unit is electrically connected to the transmission structure of the feed network.

[0031] The antenna device in the embodiment of the present application, by providing the feeding network of the first aspect, can facilitate the processing and assembly of the antenna device, thereby reducing the cost of the antenna device.

[0032] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. The purposes and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1A is a schematic diagram of a feed network component in the related art provided by an embodiment of the present application;

[0034] FIG1B is a schematic diagram of an antenna system provided in an embodiment of the present application;

[0035] FIG2 is a schematic diagram of an antenna device provided in an embodiment of the present application;

[0036] FIG3 is a schematic structural diagram of a feed network component provided in an embodiment of the present application;

[0037] FIG4 is a three-dimensional view of a feed network component provided in an embodiment of the present application;

[0038] FIG5 is a schematic diagram of a first slot and a second slot of a feed network component provided by an embodiment of the present application, in which a first slot and a second slot are arranged relative to each other;

[0039] FIG6 is a schematic diagram of a feed network component provided by an embodiment of the present application, in which first slots and second slots are arranged alternately;

[0040] FIG7 is a schematic diagram of an “L”-shaped middle baffle of a feed network assembly provided in an embodiment of the present application;

[0041] FIG8 is a schematic diagram of a feed network component provided by an embodiment of the present application, in which a third slot and a fourth slot are arranged alternately;

[0042] FIG9 is a schematic diagram of a third slot and a fourth slot of a feed network component provided by an embodiment of the present application, in which a third slot and a fourth slot are arranged relative to each other;

[0043] FIG10 is a schematic diagram of an I-shaped middle baffle of a feed network assembly provided in an embodiment of the present application;

[0044] FIG11 is a schematic diagram showing an integrated formation of a middle baffle and a lower side wall of a receiving cavity of a feed network assembly provided by an embodiment of the present application;

[0045] FIG12 is a schematic diagram showing an integrated formation of a middle baffle and an upper side wall of a receiving cavity of a feed network assembly provided by an embodiment of the present application;

[0046] FIG13 is a schematic diagram of the distance between slots of a feed network component provided in an embodiment of the present application;

[0047] FIG14 is a schematic diagram of the slot depth of a feed network component provided in an embodiment of the present application;

[0048] FIG15 is a schematic diagram of a feed network component provided by an embodiment of the present application, in which a slot is provided on a side wall above the accommodating cavity;

[0049] FIG16 is a schematic diagram showing a feed network component provided by an embodiment of the present application, in which the depth of the slot is greater than the width of the coupling region;

[0050] FIG17 is a schematic diagram showing a transmission structure of a feed network assembly provided in an embodiment of the present application disposed below a receiving cavity;

[0051] FIG18 is a schematic diagram of a first side wall of a feed network assembly provided by an embodiment of the present application, wherein the cover plate has a bent edge facing downward and is coupled to the side wall;

[0052] FIG19 is a schematic diagram of slotting on a cover plate of a feed network assembly provided in an embodiment of the present application;

[0053] FIG20 is a schematic diagram of a groove formed on a side wall of a feed network component provided by an embodiment of the present application;

[0054] FIG21 is a schematic diagram of an “L”-shaped middle baffle when the first side wall of a feed network assembly provided by an embodiment of the present application is as shown in FIG18 ;

[0055] FIG22 is a schematic diagram of an I-shaped middle baffle when the first side wall of a feed network assembly provided by an embodiment of the present application is as shown in FIG18 ;

[0056] FIG23 is a schematic diagram of an embodiment of the present application, wherein the first side wall of a feed network assembly is as shown in FIG18 , and the intermediate baffle and the floor are integrally formed;

[0057] FIG24 is a schematic diagram of a feed network assembly provided by an embodiment of the present application, wherein the cover plate of the feed network assembly is coupled to the floor with its bent edge facing downward;

[0058] FIG25 is a schematic diagram of an “L”-shaped middle baffle when the first side wall of a feed network assembly provided by an embodiment of the present application is as shown in FIG24 ;

[0059] FIG26 is a schematic diagram of an I-shaped middle baffle when the first side wall of a feed network assembly provided by an embodiment of the present application is as shown in FIG24 ;

[0060] FIG27 is a schematic diagram of an embodiment of the present application, wherein the first side wall of a feed network assembly is as shown in FIG24 , and the intermediate baffle and the floor are integrally formed;

[0061] FIG28 is a schematic diagram of a feed network assembly provided by an embodiment of the present application, wherein a bent edge of the cover facing downward is coupled to a bent edge of the floor facing upward;

[0062] FIG29 is a schematic diagram of grooving a floor in a feed network assembly according to an embodiment of the present application;

[0063] FIG30 is a schematic diagram of an “L”-shaped middle baffle when the first side wall of a feed network assembly provided by an embodiment of the present application is as shown in FIG28 ;

[0064] FIG31 is a schematic diagram of an I-shaped middle baffle when the first side wall of a feed network assembly provided in an embodiment of the present application is as shown in FIG28 ;

[0065] FIG32 is a schematic diagram of an embodiment of the present application showing a first side wall of a feed network assembly as shown in FIG28 , in which the middle baffle and the floor are integrally formed. DETAILED DESCRIPTION

[0066] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0067] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0068] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0069] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0070] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0071] The present application provides an antenna device that can be used in a communication device, wherein the communication device can be a communication base station, such as a public mobile communication base station. The communication device, such as a communication base station, is an interface device for mobile devices to access the Internet and is also a form of radio station. Within a certain radio coverage area, information can be transmitted between the communication base station (mobile communication exchange center) and the mobile device.

[0072] The antenna system is the primary component for information transmission between a communication base station and mobile devices. Generally, as shown in Figure 1B , the antenna system 1 includes an antenna assembly 10, a mounting bracket 20, a mast 30, and a grounding device 40. The antenna assembly 10 is secured to the mast 30 via the mounting bracket 20. In practice, the position and angle of the mounting bracket 20 can be adjusted to adjust the position and angle of the antenna assembly 10 on the mast 30.

[0073] In addition, one end of the antenna assembly 10 can be connected to the grounding device 40 via a connector to ensure that the antenna assembly 10 is grounded. The connector's end connected to the antenna assembly 10 and the end connected to the grounding device 40 are both provided with joint seals to ensure the seals between the ends of the connector and the antenna assembly 10 and the grounding device 40, respectively. It is understood that the joint seals can be insulating sealing tape, such as polyvinyl chloride (PVC) insulating tape.

[0074] In practical applications, the antenna assembly 10 is typically located within a radome. The radome is a protective structure surrounding the antenna assembly 10, protecting it from external environmental influences. It possesses excellent electrical properties for electromagnetic wave penetration and mechanical properties for withstanding harsh external environments. This radome protects the antenna assembly 10 from damage due to dust or water.

[0075] As shown in FIG2 , the antenna device 10 of an embodiment of the present application may include at least one independent array consisting of radiating elements 11 and reflectors 17, wherein the frequencies of the radiating elements 11 may be the same or different, and the radiating elements 11 are typically placed above the reflectors 17. The array receives or transmits radio frequency signals through respective feed network components 100. The antenna device 10 may also include a phase shifter 12 connected to the radiating elements 11, wherein the phase shifter 12 is used to achieve real-time variability in network coverage and adjust the signal phase to achieve electrical downtilt of the array antenna.

[0076] The feed network assembly 100 is disposed within the phase shifter 12 and is electrically connected to the radiating element 11 and the antenna connector 16. The feed network assembly 100 can feed a radio frequency signal to the radiating element 11 at a certain amplitude and phase, or transmit a received radio signal at a certain amplitude and phase to a radio frequency device, such as a signal processing unit of a communication base station.

[0077] For example, one end of the antenna connector 16 away from the feed network can be electrically connected to a radio frequency circuit (not shown), thereby enabling radio frequency signals to be transmitted between the radiating element 11 and the radio frequency circuit. For example, the other end of the antenna connector 16 is electrically connected to a radio frequency signal port in the radio frequency circuit.

[0078] In which, when the antenna device is a transmitting antenna, the RF circuit can provide a signal source for the antenna device. For example, the other end of the antenna connector 16 can be electrically connected to the RF signal port in the RF circuit, that is, the feeding network component 100 is electrically connected to the RF signal port in the RF circuit, so that the RF signal port can send a RF signal and feed the RF signal into the radiation unit 11 in the form of current. Then the radiation unit 11 sends the RF signal in the form of electromagnetic waves and is received by the receiving antenna in the mobile device.

[0079] When the antenna device is a receiving antenna, the RF circuit can receive the RF signal fed back by the antenna device. For example, the radiation unit 11 of the antenna device converts the received electromagnetic wave signal into a current signal, which is then transmitted to the RF circuit through the feeding network component 100, and then subsequently processed by the signal processing unit.

[0080] The RF circuit includes a remote radio unit (RRU), which is part of the RF circuitry. The RF signal port is typically located within the RRU. The specific circuit configuration and operating principles of the RF circuit can be directly referenced in the prior art and will not be further elaborated here.

[0081] In practical applications, with the widespread adoption and development of 5G technology, base station antennas are evolving toward multi-band and multi-array configurations, and antenna devices are becoming increasingly integrated. For example, an antenna device may include multiple radiating elements 11 and multiple feed network components 100, with the feed network components 100 corresponding to the radiating elements 11, forming an array antenna. Each radiating element 11 is electrically connected to its corresponding feed network component 100, so that each radiating element 11 is electrically connected to the RF circuit through its respective feed network component 100, thereby enabling each radiating element 11 to receive or transmit RF signals.

[0082] In addition, in some embodiments, the feed network assembly 100 may be connected to a transmission component (not shown) to achieve different radiation beam directions; or, the feed network assembly 100 may be connected to a calibration network to obtain the calibration signal required by the system. In addition, a module for expanding performance, such as a combiner 15 or a filter 14, may be provided between the feed network assembly 100 and the antenna connector 16 to improve the performance of the antenna device 10. The embodiments of the present application do not further limit the phase shifter 12, the filter 14, the calibration network 13, and the combiner 15.

[0083] The following describes in detail the feed network assembly 100 provided in the embodiment of the present application with reference to the accompanying drawings:

[0084] For the convenience of description, in the embodiment of the present application, the length direction of the feed network component 100 is set as the first direction, the thickness direction is set as the second direction, and the direction perpendicular to the first direction and the second direction is the third direction.

[0085] As shown in Figure 3, it is a structural schematic diagram of the feed network component 100; as shown in Figure 4, it is a three-dimensional view of the feed network component 100; the feed network component 100 includes: a cavity 110 and a transmission structure 120; wherein the cavity includes a accommodating cavity 130, and the accommodating cavity 130 is used to accommodate the transmission structure 120; the cavity 110 also includes a first side wall 140, the first side wall 140 includes a first sub-side wall 1401 and a second sub-side wall 1402 that are arranged opposite to each other and capacitively coupled, and at least one of the first sub-side wall 1401 and the second sub-side wall 1402 that are arranged opposite to each other and capacitively coupled includes at least one slot 1403 (not shown in Figure 3).

[0086] In the present application, by providing slots in the first sub-side wall 1401 and the second sub-side wall 1402 that are oppositely arranged and capacitively coupled, the area of ​​the opposite arrangement is reduced, thereby reducing resonance and improving transmission efficiency.

[0087] In the embodiment of the present application, as shown in FIG3 , the first sidewall 140 is the sidewall of the accommodating cavity 130, the first sub-sidewall 1401 is integrally connected to the sidewall of the accommodating cavity 130, and the second sub-sidewall 1402 is integrally connected to the sidewall of the accommodating cavity 130. That is, the first sub-sidewall is extended from the sidewall of the accommodating cavity.

[0088] In some possible embodiments, as shown in FIG5 , in the first sub-sidewall 1401 and the second sub-sidewall 1402 that are arranged opposite to each other and capacitively coupled, the first sub-sidewall 1401 includes at least two first grooves 1413 and the second sub-sidewall includes at least two second grooves 1423 ; the first grooves 1413 and the second grooves 1423 are staggered.

[0089] In the present application, the staggered arrangement of slots can make the structure of the feed network more stable, extend the service life of the feed network, and save costs.

[0090] In other possible embodiments, as shown in Figure 6, in the first sub-side wall 1401 and the second sub-side wall 1402 that are arranged opposite to each other and capacitively coupled, the first sub-side wall 1401 includes at least two first grooves 1413 and the second sub-side wall 1402 includes at least two second grooves 1423; the first grooves 1413 and the second grooves 1423 are arranged opposite to each other.

[0091] In the present application, when grooves are set on both the first sub-side wall and the second sub-side wall, the first groove on the first sub-side wall and the second groove on the second sub-side wall can be set relative to each other or staggered. The present application is more flexible in setting the grooves, making the present application more universal.

[0092] In some possible embodiments, the feed network component 100 further includes: at least one intermediate baffle 150, which is disposed in the accommodating cavity 130, and the intermediate baffle 150 divides the accommodating cavity 130 into at least two sub-accommodating cavities 1301, each of which is provided with a transmission structure 120; at least one end of the intermediate baffle 150 is coupled to a side wall of the accommodating cavity 130.

[0093] In the present application, the accommodating cavity 130 can be divided into multiple sub-accommodating cavities 1301 by setting an intermediate baffle 150, so that the transmission structure 120 in different sub-accommodating cavities 1301 can be connected to the radiating units of the antenna device with different polarizations, and then the needs of radiating units with different polarizations can be met by one feeding network component 100, which simplifies the structure of the feeding network component 100 and reduces costs.

[0094] It should be noted that in this application, there is no limit on the number of intermediate baffles 150, that is, one intermediate baffle 150 can be set to divide the accommodating chamber 130 into two sub-accommodating chambers 1301, two intermediate baffles 150 can be set to divide the accommodating chamber 130 into three sub-accommodating chambers 1301, and three intermediate baffles 150 can be set to divide the accommodating chamber 130 into four sub-accommodating chambers 1301, and so on.

[0095] In some possible embodiments, in order to further reduce resonance, the target end 1501 is arranged opposite to the side wall of the accommodating cavity, and at least one of the oppositely arranged target end 1501 and the side wall of the accommodating cavity includes at least one slot; the target end 1501 is an end of the intermediate baffle 150 coupled to the side wall of the accommodating cavity.

[0096] For example, as shown in FIG7 , the middle baffle 150 is arranged in an “L” shape, and the lower end of the middle baffle is coupled to the side wall of the accommodating cavity, and the lower end of the middle baffle 150 is the target end.

[0097] In the present application, slots are provided in the target end and the side wall of the accommodating cavity that are oppositely arranged and capacitively coupled, thereby reducing the area of ​​the opposite arrangement, thereby reducing resonance and improving transmission efficiency.

[0098] In some possible embodiments, as shown in FIG8 (only the middle baffle and the side wall of the accommodating cavity are shown in FIG8 ), in the target end 1501 and the side wall of the accommodating cavity that are arranged relatively to each other, the target end 1501 includes at least two third slots 1433, and the side wall of the accommodating cavity includes at least two fourth slots 1443; the third slots 1433 and the fourth slots 1443 are staggered.

[0099] In the present application, when there are a large number of slots, the slots may be staggered to ensure the stability of the feed network component and extend the service life of the feed network component.

[0100] In other possible embodiments, as shown in FIG9 , the target end 1501 and the side wall of the accommodating cavity are arranged opposite to each other, the target end 1501 includes at least two third slots 1433 , and the side wall of the accommodating cavity includes at least two fourth slots 1443 ; the third slot 1433 and the fourth slot 1443 are arranged opposite to each other.

[0101] In the present application, when slots are set on both the target end 1501 and the side wall of the accommodating cavity, the third slot 1433 on the target end 1501 and the fourth slot 1443 on the side wall of the accommodating cavity can be set relative to each other or staggered. The present application is more flexible in setting the slots, making the present application more universal.

[0102] In some possible embodiments, in addition to being configured as an "L" shape as shown in FIG. 7 , the intermediate baffle 150 may also be configured as an "I"-shaped metal structure as shown in FIG. 10 . The connection between the intermediate baffle 150 in the I-shaped structure and the sidewall of the accommodating cavity may be a coupling connection or a direct connection using screws or other methods. When the intermediate baffle 150 in the I-shaped structure is coupled to the sidewall of the accommodating cavity, the method for determining the target end of the intermediate baffle and the method for slotting are the same as those in FIG. 7 and are not further described here.

[0103] In other possible embodiments, as shown in Figure 11, the intermediate baffle 150 can also be integrally formed with the lower side wall of the accommodating cavity. In this case, the upper end of the intermediate baffle 150 is the target end 1501, and the grooving method of the target end 1501 and the side wall of the accommodating cavity is the same as Figure 7, which will not be repeated here.

[0104] In other possible embodiments, as shown in FIG12 , the intermediate baffle 150 can also be integrally formed with the upper side wall of the accommodating cavity. In this case, the upper end of the intermediate baffle 150 is the target end 1501 , and the method of cutting the grooves between the target end 1501 and the side wall of the accommodating cavity is the same as that in FIG7 , which will not be described in detail here.

[0105] In some possible embodiments, as shown in FIG13 (taking the slots provided on the second sub-sidewall 1402 as an example), at least one of the first sub-sidewall 1401 and the second sub-sidewall 1402, which are disposed opposite each other and capacitively coupled, includes at least two slots arranged along a first direction, wherein the distance between adjacent slots along the first direction is a predetermined distance. The predetermined distance can be set to an integer multiple of one-quarter of an operating wavelength, where the operating wavelength is the operating wavelength of the antenna device corresponding to the feed network assembly 100.

[0106] In some possible embodiments, as shown in FIG14 , the depth of the groove along the second direction ( w2 in FIG14 ) is greater than the width of the coupling region ( w1 in FIG14 ); the coupling region is the region of the coupling connection where the groove is located.

[0107] In the present application, by setting the depth of the groove to be greater than the width of the coupling region, the area where the first sub-sidewall and the second sub-sidewall are arranged opposite to each other is reduced, thereby reducing the resonance.

[0108] In some other possible embodiments, as shown in FIG14 , the length of the slot along the first direction ( l1 in FIG14 ) is less than half the operating wavelength, where the operating wavelength is the operating wavelength of the antenna device corresponding to the feed network component.

[0109] In the present application, by setting the distance between adjacent slots to be smaller than the preset distance, the metal on both sides of the slots is prevented from forming a coupled connection due to the gap in the middle, thereby preventing resonance, thereby further ensuring the transmission efficiency.

[0110] It should be noted that the method of setting the grooves in the target end and the side wall of the accommodating cavity is the same as the method of setting the grooves in the first sub-side wall and the second sub-side wall, which will not be described in detail here.

[0111] In some possible embodiments, in addition to setting the grooves on the side walls of the accommodating cavity on both sides of the accommodating cavity as shown in Figure 13, the grooves can also be set on the side walls above the accommodating cavity as shown in Figure 15. At this time, in order to ensure that the depth of the groove is greater than the width of the coupling area, as shown in Figure 16, l needs to be greater than w.

[0112] In some possible embodiments, the transmission structure 120 includes: a transmission strip line and a phase-shifting medium. The transmission structure can be arranged in the accommodating cavity above the accommodating cavity as shown in Figure 3, or below the accommodating cavity as shown in Figure 17. It should be noted that the position of the transmission structure in the accommodating cavity is not limited in this application.

[0113] It should be noted that, in this embodiment, there is no further limitation on the location of the transmission structure 120. In addition, there is no further limitation on the size of the accommodating cavity 130, as long as it can facilitate the assembly of the transmission structure 120.

[0114] To facilitate further understanding of a feed network assembly provided in an embodiment of the present application, the first side wall of the feed network assembly is described in detail below:

[0115] In some possible embodiments, first sidewall 140 includes a cover plate 1403, a floor 1404, and a sidewall 1405. As shown in FIG18 , the bent edge of cover plate 1403 can face downward to couple with sidewall 1405. If grooves are cut in cover plate 1403, the grooves are shown in FIG19 . If grooves are cut in sidewall 1405, the grooves are shown in FIG20 .

[0116] When the first sidewall 140 is shown in FIG18 , the intermediate baffle 150 can be configured in an "L" shape as shown in FIG21 , or in an "I" shape as shown in FIG22 , or as shown in FIG23 , where the intermediate baffle 150 is integrally formed with the floor 1404 . It should be noted that this application does not limit the specific design of the intermediate baffle. The connection method between the intermediate baffle 150 and the first sidewall 140 and the groove method are the same as described above and will not be further described here.

[0117] In some other possible embodiments, the first side wall 140 includes a cover plate 1403 and a floor 1404. As shown in FIG24 , the bent edge of the cover plate 1403 can face downward to couple with the floor 1404. If a groove is formed on the cover plate 1403, the groove is shown in FIG24 .

[0118] When the first sidewall 140 is shown in FIG24 , the intermediate baffle 150 can be configured in an "L" shape as shown in FIG25 , or in an "I" shape as shown in FIG26 , or as shown in FIG27 , where the intermediate baffle 150 is integrally formed with the floor 1404 . It should be noted that this application does not limit the specific design of the intermediate baffle. The connection method between the intermediate baffle 150 and the first sidewall 140 and the groove method are the same as described above and will not be further described here.

[0119] In other possible embodiments, first sidewall 140 includes a cover plate 1403 and a floor plate 1404. As shown in FIG28 , the bent edge of cover plate 1403 can face downward to couple with the upward bent edge of floor plate 1404. If grooves are cut in cover plate 1403, the grooves are shown in FIG19 . If grooves are cut in floor plate 1404, the grooves are shown in FIG29 .

[0120] When the first sidewall 140 is shown in FIG28 , the intermediate baffle 150 can be configured in an "L" shape as shown in FIG30 , or in an "I" shape as shown in FIG31 , or as shown in FIG32 , where the intermediate baffle 150 is integrally formed with the floor 1404 . It should be noted that this application does not limit the specific design of the intermediate baffle. The connection method between the intermediate baffle 150 and the first sidewall 140 and the groove method are the same as described above and will not be further described here.

[0121] It should be noted that the phase shifter provided in the embodiments of the present application can simplify its structure and thus reduce costs by providing the aforementioned feed network assembly 100. The antenna device in the embodiments of the present application can simplify its structure and thus reduce costs by providing the feed network assembly 100 of the first aspect.

[0122] It should be understood that in the present application, "electrical connection" can be understood as physical contact and electrical conduction between components, or it can be a coupled connection; it can also be understood as a form of connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals. "Coupling" can be understood as electrical conduction through the air by indirect coupling. The coupling in the present application can be understood as capacitive coupling, for example, the formation of an equivalent capacitance through coupling between the gaps between two conductive parts to achieve signal transmission. Among them, it can be understood by those skilled in the art that the coupling phenomenon refers to the phenomenon that there is close cooperation and mutual influence between the input and output of two or more circuit elements or electrical networks, and energy is transmitted from one side to the other through interaction. "Communication connection" can refer to the transmission of electrical signals, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to the connection relationship that limits the product structure. "Connected" and "connected" can refer to a mechanical or physical connection. For example, "A and B are connected" or "A and B are connected" can mean that there is a fastening member (such as a screw, bolt, or rivet) between A and B, or that A and B are in contact with each other and cannot be separated. "Relative" or "oppositely arranged": "A and B are arranged oppositely" can mean that A and B are arranged face to face.

Claims

1. A feeding network component, characterized in that: The feed network component comprises: a cavity and a transmission structure, wherein: The cavity comprises a containing cavity, and the containing cavity is used to contain the transmission structure; The cavity further includes a first sidewall, the first sidewall including a first sub-sidewall and a second sub-sidewall that are oppositely disposed and capacitively coupled, and at least one of the first sub-sidewall and the second sub-sidewall that are oppositely disposed and capacitively coupled includes at least one groove.

2. The feed network component according to claim 1, characterized in that The first side wall is a side wall of the accommodating cavity, and the first sub-side wall is integrally connected to the side wall of the accommodating cavity.

3. The feed network component according to claim 1, characterized in that In the first sub-sidewall and the second sub-sidewall that are oppositely arranged and capacitively coupled, the first sub-sidewall includes at least two first grooves and the second sub-sidewall includes at least two second grooves; the first grooves and the second grooves are staggered.

4. The feed network component according to claim 1, characterized in that In the first sub-sidewall and the second sub-sidewall that are oppositely arranged and capacitively coupled, the first sub-sidewall includes at least two first grooves and the second sub-sidewall includes at least two second grooves; the first grooves and the second grooves are oppositely arranged.

5. The feed network component according to claim 1, characterized in that The feed network further comprises: at least one intermediate baffle, which is arranged in the accommodating cavity, and the intermediate baffle divides the accommodating cavity into at least two sub-accommodating cavities, each of which is provided with the transmission structure; At least one end of the middle baffle is coupled to the side wall of the accommodating cavity.

6. The feed network component according to claim 5, characterized in that The target end is arranged opposite to the side wall of the accommodating cavity, and the oppositely arranged target end and at least one of the side walls of the accommodating cavity include at least one slot; the target end is an end of the intermediate baffle plate coupled to the side wall of the accommodating cavity.

7. The feed network component according to claim 6, characterized in that In the target end and the side wall of the accommodating cavity that are arranged opposite to each other, the target end includes at least two third slots, and the side wall of the accommodating cavity includes at least two fourth slots; the third slots and the fourth slots are arranged alternately.

8. The feed network component according to claim 6, characterized in that In the target end and the side wall of the accommodating cavity that are arranged opposite to each other, the target end includes at least two third slots, and the side wall of the accommodating cavity includes at least two fourth slots; the third slot and the fourth slot are arranged opposite to each other.

9. The feed network component according to any one of claims 1, characterized in that: At least one of the first sub-side wall and the second sub-side wall that are oppositely arranged and capacitively coupled includes at least two slots arranged along a first direction, and among the at least two slots arranged along the first direction, a distance between adjacent slots along the first direction is a preset distance.

10. The feed network component according to claim 9, characterized in that The preset distance is an integer multiple of one quarter of a working wavelength, where the working wavelength is a working wavelength of an antenna device corresponding to the feeding network component.

11. The feed network component according to any one of claims 1 to 10, characterized in that: The depth of the groove along the second direction is greater than the width of the coupling region; the coupling region is a coupling connection region where the groove is located.

12. The feed network component according to any one of claims 1 to 10, characterized in that: The length of the slot along the first direction is less than half of an operating wavelength, where the operating wavelength is an operating wavelength of an antenna device corresponding to the feed network component.

13. A phase shifter, characterized in that: The invention comprises a feeding network component as claimed in any one of claims 1 to 12.

14. An antenna device, characterized in that: It comprises a radiating unit and a feeding network component as claimed in any one of claims 1 to 12; wherein the radiating unit is electrically connected to the transmission structure of the feeding network.

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