Antenna apparatus and electronic device

Abstract

An antenna apparatus and a communication device. The antenna apparatus comprises a housing, a radiator and feeder lines, and an accommodating space is provided in the housing. The radiator comprises at least one radiation unit that is arranged in the accommodating space and connected to the inner wall of the housing. At least some of the feeder lines are arranged in the accommodating space, and the feeder lines are coupled to the radiation unit and is used for feeding the radiation unit. The antenna apparatus provided by the present application does not need to be attached to a PCB, greatly reducing the occupation of the antenna apparatus on an internal space of the communication device, and increasing the space utilization rate; in addition, the installation of the antenna apparatus would not be limited by the overall form of the PCB, the radiator can be arranged on the inner wall of the housing, and can adapt to the shape of the inner wall so as not to be limited by the shape of the inner wall of the housing, facilitating the installation and fixing, and expanding the installation scenario of the antenna apparatus.

Description

Antenna device and communication equipment

[0001] This invention claims priority to the Chinese patent application filed with the State Intellectual Property Office on February 27, 2024, with application number 202410218762.2 and application name “Antenna Device and Communication Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to an antenna device and a communication device. Background Art

[0003] External antennas typically need to be attached to a printed circuit board (PCB), a metal sheet used to radiate energy, which is mounted entirely on the communication device. Due to the large size of the PCB, the antenna takes up a significant amount of space inside the device. Furthermore, PCBs are typically flat and require installation on a flat surface, making them difficult to install on non-flat surfaces within the device. This, in turn, complicates antenna installation.

[0004] Summary of the Invention

[0005] In view of this, the present application provides an antenna device and a communication device to solve the problem in the above-mentioned prior art that the antenna needs to be attached to the PCB, resulting in the antenna occupying a large space inside the communication device, and the antenna is difficult to install when the installation position inside the communication device is non-planar.

[0006] In a first aspect, embodiments of the present application provide an antenna device comprising: a housing, a radiator, and a feeder. The housing comprises a housing. The radiator comprises at least one radiating element disposed within the housing. At least a portion of the feeder is disposed within the housing. The feeder is coupled to the radiating element for feeding power to the radiating element.

[0007] The present application provides an antenna device that does not need to be attached to a PCB board, thereby greatly reducing the internal space occupied by the antenna device in the communication equipment and improving the space utilization rate. At the same time, the installation of the antenna device will not be restricted by the overall shape of the PCB board. The radiator can be set on the inner wall of the shell and can adapt to the shape of the inner wall. It is not restricted by the shape of the inner wall of the shell, thereby facilitating installation and fixation, and expanding the installation scenario of the antenna device.

[0008] In one possible design, the radiator includes a plurality of radiating elements, and the plurality of radiating elements are arranged into one or more columns of radiating element arrays. When the radiating element array is provided with multiple columns, the plurality of radiating element arrays are spaced apart in the circumferential direction of the shell, and the plurality of feeders are provided, and the plurality of radiating element arrays are coupled and connected to the plurality of feeders in a one-to-one correspondence. Specifically, when the radiating element array is provided with only one column, the radiating elements in one radiating element array can share one feeder. When the radiating elements transmit or receive radio frequency signals of the same frequency band, the antenna device can constitute a single-frequency single-feed antenna; when some radiating elements transmit or receive radio frequency signals of different frequency bands, a dual-frequency single-feed antenna can be constituted. When the radiation element array is provided with multiple columns, each column of the radiation element array is respectively connected to a corresponding feeder, and each column of the radiation element array can transmit or receive radio frequency signals of the same frequency band; or some columns of the radiation element array can transmit or receive radio frequency signals of different frequency bands. For example, when the radiation element array is provided with two columns, one column of the radiation element array is used to radiate radio frequency signals of the 2G frequency band, and the other column of the radiation element array is used to radiate radio frequency signals of the 5G frequency band, so that the antenna device can constitute a multi-frequency antenna.

[0009] In a possible design, the radiating element array is provided with two columns, and the two columns of radiating element arrays are arranged opposite to each other in the shell. Two feed lines are provided, and the two feed lines are coupled and connected with the two columns of radiating element arrays in a one-to-one correspondence, so that the antenna device can constitute a dual-frequency dual-fed antenna. Particularly, by arranging the two columns of radiating element arrays and the corresponding feed lines on opposite sides of the shell, the distance between the two columns of radiating element arrays and the two feed lines can be maximized, and under this arrangement, the distance between the two columns of radiating element arrays arranged opposite to each other in the shell and the distance between the two feed lines are much greater than the thickness of a conventional PCB board, thereby effectively reducing the mutual coupling effect between the two feed lines, which is beneficial to improving the isolation between the two columns of radiating element arrays, improving the radiation efficiency of the antenna device, expanding the bandwidth, and obtaining a uniform directional pattern in the horizontal direction.

[0010] In one possible design, the housing includes a first body and a second body, which are detachably connected. The first and second bodies can be separately machined and assembled to form the housing of the antenna device, thereby facilitating assembly and disassembly operations and facilitating repair and maintenance of components within the housing, such as the radiator and feeder.

[0011] In a possible design, the radiator is connected to the inner wall of the first body and / or the second body, thereby facilitating the arrangement of the radiator and facilitating processing.

[0012] In one possible design, the radiator includes multiple columns of radiating element arrays, each column of the radiating element array includes multiple radiating elements, at least one column of the radiating element array is connected to the inner wall of the first body, and at least another column of the radiating element array is connected to the inner wall of the second body, so that the distance between the two columns of radiating element arrays and the distance between the two feed lines can be maximized, the isolation is improved, and the mutual coupling effect between the feed lines is reduced.

[0013] In one possible design, one of the first body and the second body is provided with a slide rail, and the other is provided with a slide groove. The first body and the second body are detachably connected through the cooperation of the slide rail and the slide groove, thereby facilitating disassembly and assembly, and also facilitating the repair and maintenance of components such as radiators and feeders in the accommodating space.

[0014] In a possible design, the housing is an integrally formed structure, thereby ensuring the reliability of the overall structure of the housing.

[0015] In one possible design, the radiator and feeder are both conformed to the inner wall of the housing, achieving a conformal design. This means that the shapes of the individual radiating elements and feeder lines are consistent with the shape of the housing's inner surface. This reduces the space occupied by the radiator and feeder lines within the housing, while ensuring a reliable connection and fixation between the radiator and feeder lines and the housing, thus ensuring the stability of the antenna device structure. Furthermore, for antenna devices with multiple radiating element arrays and multiple feeder lines, this also helps maximize the distance between feeder lines, reducing the effects of feeder mutual coupling.

[0016] In one possible design, the radiator is formed on the inner wall of the shell by one of the following processes: in-mold injection molding, direct printing (PDS), laser engraving and plating, or electroplating, thereby ensuring that the radiator is reliably combined with the shell.

[0017] In one possible design, the radiator includes a radiating portion and a thin film substrate, wherein the radiating portion is connected to a surface of the thin film substrate, and a surface of the thin film substrate facing away from the radiating portion is attached to the inner wall of the housing. The thin film substrate can be used to support the radiating portion, ensuring a stable distribution of the radiating portions.

[0018] In one possible design, each radiating element in the radiator is configured to receive or transmit signals in the same frequency band, thereby enabling the antenna device to constitute a single-frequency antenna. Alternatively, at least some of the radiating elements in the radiator are configured to receive or transmit signals in different frequency bands, thereby enabling the antenna device to constitute a multi-frequency antenna.

[0019] In one possible design, when the radiator is provided with multiple columns of radiating element arrays, each column of the radiating element arrays is used to receive or transmit signals in the same frequency band, thereby enabling the antenna device to constitute a single-frequency antenna. Alternatively, at least some columns of the radiating element arrays are used to receive or transmit signals in different frequency bands, thereby enabling the antenna device to constitute a multi-frequency antenna.

[0020] In one possible design, the housing is made of an insulating material, such as hard plastic, hard resin, or ceramic. These materials offer insulation and ensure a certain degree of hardness for the housing, resulting in better structural stability. Furthermore, compared to traditional FR-4 dielectric boards, these materials exhibit a lower loss tangent and dielectric loss, which improves the antenna's radiation performance while also reducing manufacturing costs.

[0021] In a second aspect, the present application further provides a communication device, which includes the antenna device provided in the first aspect of the present application. The communication device including the aforementioned antenna device has similar technical effects as the aforementioned antenna device, which will not be described in detail here.

[0022] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] FIG1 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0025] FIG2 is a schematic structural diagram of an antenna device provided by an embodiment of the present application;

[0026] FIG3 is a schematic diagram of the interior of an antenna device provided in one embodiment of the present application;

[0027] FIG4 is a schematic structural diagram of an antenna device provided in another embodiment of the present application;

[0028] FIG5 is an exploded view of the antenna device shown in FIG4 in one embodiment;

[0029] FIG6 is a partial cross-sectional view of an antenna device provided by an embodiment of the present application;

[0030] FIG7 is an exploded view of a housing provided by an embodiment of the present application;

[0031] FIG8 is a schematic diagram of the interior of the antenna device shown in FIG2 after the housing is opened;

[0032] FIG9 is a schematic diagram of the interior of the antenna device shown in FIG4 after the housing is opened;

[0033] FIG10 is an exploded view of the antenna device shown in FIG2 in one embodiment;

[0034] FIG11 is an exploded view of the antenna device shown in FIG4 in another embodiment;

[0035] FIG12 is an exploded view of the antenna device shown in FIG2 in another embodiment.

[0036] Figure numerals: 1-housing; 11-accommodating space; 12-first body; 121-slide groove; 13-second body; 131-slide rail; 2-radiator; 21-radiation unit; 22-radiation part; 23-film substrate; 3-feeder. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] In the description of this application, unless otherwise specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0042] For example, communication equipment such as routers and optical network terminals generally include an antenna device to receive or transmit radio frequency signals through the antenna device. At present, the antenna device used in communication equipment generally needs to be attached to a printed circuit board (PCB), that is, a metal sheet is set on the surface of the PCB, and the metal sheet can be used as a radiation component to transmit or receive radio frequency signals. The antenna device including the PCB and the metal sheet can be installed as a whole on the communication device. Generally speaking, in order to improve the appearance of the communication device, the antenna device is usually installed inside the communication device. However, the space inside the communication device is very limited. The larger PCB will occupy a larger space inside the communication device, which is not conducive to the miniaturization design of the communication device. In addition, the part inside the communication device for installing the antenna may be flat or non-flat, and the PCB board is usually a flat board, which is not convenient for installation and fixation on a non-flat surface, which makes it difficult to install and arrange the antenna device in the communication device.

[0043] The present application provides an antenna device that can be used in communication equipment. The communication equipment may include a router, an optical network terminal, an indoor coverage base station antenna, a wireless network receiver (Wireless Local Area Network, WLAN), a customer-premises equipment (CPE), etc., or other Internet of Things (IoT) devices. This embodiment does not limit the specific type of communication equipment. This application uses the communication device shown in Figure 1 as an example of a router for illustrative purposes.

[0044] FIG2 is a schematic diagram of the structure of an antenna device according to an embodiment of the present application, and FIG3 is a schematic diagram of the interior of an antenna device according to an embodiment of the present application. Referring to FIG2 and FIG3 together, the antenna device according to an embodiment of the present application may include a housing 1, a radiator 2, and a feeder 3. The housing 1 includes a housing 11 for accommodating the radiator 2. The housing 1 provides protection for the radiator 2 and the connection between the radiator 2 and the feeder 3. In one embodiment, the housing 1 may be a separately manufactured shell-like structure that accommodates most of the components of the antenna device. Furthermore, the antenna device may be mounted and secured to a communication device via the housing 1, ensuring reliable mounting and securing of the antenna device within the communication device. In one embodiment, the housing 1 may also be a component of the communication device. For example, the housing 1 may be part of the communication device's housing, and the radiator 2 of the antenna device may be molded onto the inner wall of the housing, thereby further reducing the size of the antenna device. In one embodiment, in the direction perpendicular to the length of the shell 1, the shape of the cross section of the shell 1 can be circular, elliptical, rectangular, square, etc. Of course, the shell 1 can also be other regular or irregular shapes. This embodiment does not limit the shape of the shell 1.

[0045] The radiator 2 may include at least one radiating element 21, which may be made of metal and configured to transmit or receive radio frequency signals. The radiating element 21 may be configured as a dipole antenna, a half-wave dipole antenna, a monopole antenna, a loop antenna, an inverted F antenna (also known as an IFA), a planar inverted F antenna (also known as a PIFA), a slot antenna, or a slot antenna, among others. A single radiating element 21 may be provided, or multiple radiating elements may be provided. When there are multiple radiating elements 21, referring to FIG3 , the multiple radiating elements 21 may be arranged in a predetermined direction according to a predetermined pattern to form a radiating element array. For a radiating element array comprising multiple radiating elements 21, each radiating element 21 may be configured to transmit or receive radio frequency signals in the same frequency band, thereby forming a single-frequency antenna. Of course, within a radiating element array, some radiating elements 21 may be configured to transmit or receive radio frequency signals in different frequency bands, thereby forming a dual-frequency or multi-frequency antenna.

[0046] Feeder line 3, also known as a transmission line, refers to the connection line between the antenna's transceiver and the radiator. The system connecting the antenna's radiator and the transceiver is called a feeding system. Feeder line 3 is further categorized by frequency, such as a wire transmission line, a coaxial transmission line, a waveguide, or a microstrip line. In this embodiment, referring to FIG3 , at least a portion of feeder line 3 can be disposed within housing space 11 of housing 1 for connection to radiating element 21 to feed power to radiating element 21. The portion of feeder line 3 extending from housing 1 can be connected to the transceiver.

[0047] Among them, the parts of the radiation unit 21 and the feeder 3 located in the shell 1 can be connected to the inner wall of the shell 1. The inner wall of the shell 1 can serve as a carrier for the radiation unit 21 and the feeder 3, which can ensure the reliable support and fixation of the radiation unit 21 and the feeder 3, while ensuring the stability of the structure and position of the radiation unit 21 and the feeder 3. In other words, the antenna device does not need to be attached to the PCB board, so that the antenna device can greatly reduce the internal space occupied by the communication equipment and improve the space utilization rate. At the same time, the installation of the antenna device will not be restricted by the overall shape of the PCB board. The radiator can be set on the inner wall of the shell and can adapt to the shape of the inner wall. It is not restricted by the shape of the inner wall of the shell, so it is easy to install and fix, which expands the installation scenario of the antenna device.

[0048] In one implementation, the housing 1 can be made of a hard plastic, a hard resin, or ceramic. Exemplary materials include polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), polyamide (PA), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyvinyl chloride (PVC), a mixture of any of the above, or other materials. These materials are insulating and can ensure that the housing 1 has a certain degree of hardness and good structural stability. Furthermore, for traditional antennas with metal radiators mounted on a printed circuit board (PCB), the PCB board can be made of a flame-resistant material (FR-4) dielectric board for cost and other considerations. FR-4 is a designation for a grade of flame-resistant material. This type of PCB board has a high loss tangent, resulting in higher losses. Considering a PCB board with a lower loss tangent would significantly increase costs. Therefore, it is difficult for antennas using PCB boards to achieve both low losses and low costs. In this application, the material of housing 1 may be, but is not limited to, the aforementioned hard plastics, hard resins, ceramics, and other materials. Compared to flame-resistant materials such as FR-4, these materials for housing 1 are both lower in cost and have a relatively low loss tangent, resulting in lower dielectric loss, which is beneficial for improving the antenna's radiation performance. In other embodiments, housing 1 may also be made of other insulating materials with a lower loss tangent than that of PCB materials, which is not a limitation in this embodiment.

[0049] In one implementation, the radiator 2 includes a plurality of radiating elements 21, and the plurality of radiating elements 21 are arranged in one or more columns of radiating element arrays. For example, referring to FIG3 , the radiating element array may be provided with only one column. The radiating element array shown in FIG3 includes four radiating elements 21, and the four radiating elements 21 are arranged in the longitudinal direction of the housing 1. The radiating elements 21 in a radiating element array may share a feeder line 3. When the radiating elements 21 transmit or receive RF signals of the same frequency band, the antenna device may constitute a single-frequency single-feed antenna. When some radiating elements 21 transmit or receive RF signals of different frequency bands, a dual-frequency single-feed antenna may be constituted.

[0050] Exemplarily, the radiation element array may also be provided with multiple columns, and the multiple columns of radiation element arrays may be spaced apart in the circumferential direction of the shell 1, and multiple feed lines 3 may be provided, and the multiple columns of radiation element arrays are coupled and connected with the multiple feed lines 3 in a one-to-one correspondence, that is, a column of radiation element arrays may be fed through a corresponding feed line 3. Among them, each column of radiation element arrays may transmit or receive radio frequency signals of the same frequency band; or some columns of radiation element arrays may transmit or receive radio frequency signals of different frequency bands. Exemplarily, when the radiation element array is provided with two columns, one column of radiation element arrays is used to radiate radio frequency signals of the 2G frequency band, and the other column of radiation element arrays is used to radiate radio frequency signals of the 5G frequency band. Among them, the above-mentioned "coupling connection" can be understood as a direct coupling connection and / or an indirect coupling connection. Direct coupling, also known as "electrical connection," refers to physical contact and electrical conduction between components. It can also be understood as a circuit structure where different components are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals. Indirect coupling refers to electrical conduction between two conductors through air or without contact. In one embodiment, indirect coupling can also be referred to as capacitive coupling, for example, where signal transmission is achieved by coupling between two conductive elements through a gap that forms an equivalent capacitor.

[0051] It should be noted that to achieve the transmission or reception of multi-band RF signals, a radiating element array is generally provided with multiple columns. For example, a two-column radiating element array is used for illustration. Traditional antenna devices require attachment to a PCB board, with two columns of radiating element arrays disposed on opposite sides of the PCB board, each connected to a corresponding feeder line. However, this design has several drawbacks. For example, as previously mentioned, mainstream PCB boards can introduce significant losses. Furthermore, the typically thin thickness of PCB boards results in a short distance between the feeders on either side of the PCB board and between the radiating elements on either side of the PCB board. This results in strong mutual coupling between the feeders on either side of the PCB board and between the radiators on either side of the PCB board, leading to reduced radiation efficiency, narrowed bandwidth, distorted radiation patterns, and degraded isolation for the antenna device. To address the mutual coupling between the feeders on either side of the PCB board and between the radiators on either side of the PCB board, a RF coaxial line is generally considered for serially feeding the radiators on either side of the PCB board. Although this feeding solution can solve the problem of mutual coupling between feed lines and radiators on both sides of the PCB board to a certain extent, the cost of the RF coaxial line is relatively high and the assembly complexity is relatively high. To this end, in this embodiment, Figure 4 is a structural schematic diagram of an antenna device provided by another embodiment of the present application, and Figure 5 is an exploded view of the antenna device shown in Figure 4 in one embodiment. Referring to Figure 5, the antenna device provided by this embodiment can enable two columns of radiating element arrays to be spaced apart on the inner wall of the shell 1. For example, the two columns of radiating element arrays and the corresponding feed lines 3 are arranged on opposite sides of the shell 1 (for example, the upper and lower sides, or the left and right sides), so that the distance between the two columns of radiating element arrays and the two feed lines 3 can be maximized. In this setting, the distance between the two columns of radiating element arrays and the distance between the two feed lines 3 arranged opposite to each other in the shell 1 is much greater than the thickness of the conventional PCB board (for example, the thickness of the PCB board is usually 0.4-1 mm, while in this application, the distance between the two columns of radiating element arrays and the distance between the two feed lines 3 can be 3-5 mm), thereby effectively reducing the mutual coupling effect between the two feed lines 3 and between the two columns of radiating element arrays, which is beneficial to improving the isolation between the two columns of radiating element arrays, improving the radiation efficiency of the antenna device, expanding the bandwidth, and obtaining a uniform directivity pattern in the horizontal direction.

[0052] In some other embodiments, the radiation unit array may have multiple columns. For example, the radiation unit array is provided with two columns as an example for description. Figure 6 is a partial cross-sectional view of an antenna device provided by an embodiment of the present application. Referring to Figure 6, the two columns of radiation unit arrays can be both arranged on the inner wall on one side of the shell 1, and the two columns of radiation unit arrays can be arranged in a preset direction. For example, the two columns of radiation unit arrays shown in Figure 6 are both arranged in the length direction of the shell 1, but for the feeder 3, the two feeders 3 respectively connected to the two columns of radiation unit arrays can be respectively arranged on opposite sides of the inner wall of the shell 1, so that a larger distance can be made between the two feeders 3, thereby reducing the mutual coupling effect between the feeders 3.

[0053] In one implementation, FIG7 is an exploded view of a housing 1 provided in one embodiment of the present application. Referring to FIG7 , the housing 1 includes a first body 12 and a second body 13, which are detachably connected. That is, the first body 12 and the second body 13 may not be integrally formed. The first body 12 and the second body 13 may be separately machined and formed and then assembled to form the housing 1 of the antenna device. In one embodiment, both the first body 12 and the second body 13 may be provided with a recessed space. After the first body 12 and the second body 13 are aligned and assembled, a housing space 11 of the housing 1 may be formed between the first body 12 and the second body 13. In one embodiment, one of the first body 12 and the second body 13 may have a recessed space, and the other may be a flat plate structure. After the first body 12 and the second body 13 are aligned and assembled, the flat plate structure may seal the recessed space, thereby also forming the housing space 11 of the housing 1 between the first body 12 and the second body 13.

[0054] In one implementation, the first body 12 and the second body 13 can be detachably connected by means of snaps, screws, slide rails 131, and slide grooves 121. For example, referring to FIG7 , a recessed space can be provided in the first body 12, and the second body 13 can be a flat plate structure. After the first body 12 and the second body 13 are assembled, the above-mentioned accommodation space 11 can be formed between the first body 12 and the second body 13. The first body 12 can be provided with a slide groove 121, and the second body 13 can be provided with a slide rail 131. The first body 12 and the second body 13 can be installed and fixed by the cooperation of the slide rail 131 and the slide groove 121, thereby facilitating disassembly and assembly, and also facilitating the repair and maintenance of components such as the radiator 2 and the feeder 3 in the accommodation space 11.

[0055] In one implementation, for a configuration in which there is only one column of radiating element arrays in the housing 1, the column of radiating element arrays can be set on the first body 12 or on the second body 13. Figure 8 is a schematic diagram of the interior of the antenna device shown in Figure 2 after the housing 1 is opened. Referring to Figure 8, the radiating element array can be set on the inner wall of the first body 12. In one embodiment, Figure 9 is a schematic diagram of the interior of the antenna device shown in Figure 4 after the housing 1 is opened. Referring to Figure 9, two columns of radiating element arrays can be set in the housing 1, wherein one column of radiating element arrays can be set on the inner wall of the first body 12, and the other column of radiating element arrays can be set on the inner wall of the second body 13, so that the distance between the two columns of radiating element arrays and the distance between the two feeders 3 can be maximized, thereby improving isolation and reducing the mutual coupling effects between the feeders 3 and between the radiating element arrays.

[0056] Among them, since the radiator 2 needs to be set on the inner wall of the first body 12 and / or the second body 13, by making the shell 1 adopt a split first body 12 and second body 13, the radiator 2 can be easily set on the first body 12 or the second body 13, which is convenient for processing.

[0057] In one implementation, the housing 1 may also be an integrally formed structure. For example, the housing 1 may be integrally injection molded, and the accommodating space 11 may be directly molded in the housing 1 , thereby ensuring the reliability of the overall structure of the housing 1 .

[0058] In one implementation, the radiator 2 can be formed on the inner wall of the housing 1 through one of an in-mold injection molding process, a silver paste printing process, a laser engraving and chemical plating process, or an electroplating process. As previously described, the radiator 2 can be made of metal, and the housing 1 can be made of plastic or other materials. Through these various processes, the metal radiator 2 can be securely mounted on the housing 1. The inner surface of the housing 1 can be either flat or curved. Through these processes, the radiator 2 can be securely mounted on the inner wall of the housing 1 and can reliably conform to various shapes of the inner surface of the housing 1, achieving a conformal design. Specifically, the shape of each radiating element 21 is consistent with the shape of the inner surface of the housing 1. This allows for compatibility with housings having various regular or irregular inner surfaces, broadening the antenna device's installation scenarios. This also reduces the internal space occupied by the radiator 2, ensuring a secure connection between the radiator 2 and the housing 1 and maintaining structural stability for the antenna device.

[0059] In one implementation, the radiator 2 may include a radiating portion 22 and a thin film substrate 23. The radiating portion 22 is connected to the surface of the thin film substrate 23, and the surface of the thin film substrate 23 facing away from the radiating portion 22 is adhered to the inner wall of the housing 1. The thin film substrate 23 may be made of a material such as polyimide (PI) or polyethylene terephthalate (PET). The thin film substrate 23 may be used to support the radiating portion 22, ensuring a stable distribution of the radiating portions 22. The thin film substrate 23 may be attached to the inner wall of the housing 1 by bonding or other means, thereby facilitating the installation and fixation of the radiator 2 to the housing 1. For example, FIG10 is an exploded view of the antenna device shown in FIG2 in one embodiment. Referring to FIG10, the radiators 2 may be arranged in a row. The radiating portions 22 of the radiators 2 may be formed on a thin film substrate 23, and the surface of the thin film substrate 23 facing away from the radiating portion 22 may be adhered to the inner wall of the housing 1. For example, Figure 11 is an exploded view of the antenna device shown in Figure 4 in another embodiment. Referring to Figure 11, the radiator 2 can be provided in two columns, wherein the radiating portion 22 in the radiator 2 in one column can be formed on a thin film substrate 23, and the radiating portion 22 in the radiator 2 in the other column can be formed on another thin film substrate 23, and the two thin film substrates 23 can be connected on opposite sides of the inner wall of the shell 1.

[0060] Of course, in some other embodiments, as described above, the radiator 2 may not include the film substrate 23, and the metal material of the radiator 2 may be formed on the inner wall of the shell 1 by one of the in-mold injection molding process, direct pad printing process (Printing Direct Structure, PDS), laser engraving and plating process, or electroplating process. Figure 12 is an exploded view of the antenna device shown in Figure 2 in another embodiment. Referring to Figure 12, the radiator 2 may be provided with only one column of radiation units 21, the radiator 2 may not include the film substrate 23, and the metal material of the radiator 2 may be formed on the inner wall of the shell 1 by the above process. Referring to Figure 5, the radiator 2 may be provided with two columns of radiation oscillator units, and the two columns of radiators 2 may not include the film substrate 23, and the metal material of the two columns of radiators 2 may be formed on the inner wall of the shell 1 by the above process.

[0061] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An antenna device, characterized in that: include: a housing, wherein a receiving space is provided in the housing; a radiator, the radiator comprising at least one radiating unit, the radiating unit being disposed in the accommodating space and connected to an inner wall of the housing; A feeder line, at least a portion of which is disposed in the accommodating space, and the feeder line is coupled to the radiating unit and is used to feed power to the radiating unit.

2. The antenna device according to claim 1, wherein The radiator comprises a plurality of radiating units, and the plurality of radiating units are arranged into one or more columns of radiating unit arrays; When the radiation element array is provided in multiple columns, the multiple columns of the radiation element array are spaced apart in the circumferential direction of the shell, and multiple feed lines are provided, and the multiple columns of the radiation element array are coupled and connected with the multiple feed lines in a one-to-one correspondence.

3. The antenna device according to claim 2, wherein: The radiation element array is provided in two columns, and the two columns of radiation element arrays are arranged opposite to each other in the housing; Two feed lines are provided, and the two feed lines are coupled and connected to two columns of the radiation element arrays in a one-to-one correspondence.

4. The antenna device according to any one of claims 1 to 3, characterized in that: The housing includes a first body and a second body, and the first body and the second body are detachably connected.

5. The antenna device according to claim 4, wherein: The radiator is connected to the inner wall of the first body and / or the second body.

6. The antenna device according to claim 4, wherein: The radiator includes multiple columns of radiation unit arrays, each column of the radiation unit array includes multiple radiation units, at least one column of the radiation unit array is connected to the inner wall of the first body, and at least another column of the radiation unit array is connected to the inner wall of the second body.

7. The antenna device according to any one of claims 4 to 6, characterized in that: One of the first body and the second body is provided with a slide rail, and the other is provided with a slide groove. The first body and the second body are detachably connected through the cooperation of the slide rail and the slide groove.

8. The antenna device according to any one of claims 1 to 3, characterized in that: The housing is an integrally formed structure.

9. The antenna device according to any one of claims 1 to 8, characterized in that: The radiator and the feeder are both in contact with the inner wall of the shell.

10. The antenna device according to any one of claims 1 to 9, characterized in that: The radiator includes a radiating portion and a film substrate. The radiating portion is connected to a surface of the film substrate. A surface of the film substrate facing away from the radiating portion is attached to an inner wall of the housing.

11. The antenna device according to any one of claims 1 to 10, characterized in that: Each radiating unit in the radiator is used to receive or transmit signals in the same frequency band; Alternatively, at least some of the radiation units in the radiator are used to receive or transmit signals in different frequency bands.

12. The antenna device according to any one of claims 1 to 11, characterized in that: When the radiator is provided with multiple columns of radiating element arrays, each column of the radiating element arrays is used to receive or transmit signals of the same frequency band; Alternatively, at least part of the radiation element arrays are used to receive or transmit signals in different frequency bands.

13. The antenna device according to any one of claims 1 to 12, characterized in that: The shell is made of insulating material.

14. A communication device, characterized in that: The antenna device comprises the antenna device according to any one of claims 1 to 13.

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