A computer rear panel antenna module and a computer

Abstract

The present application relates to a kind of computer back baffle antenna module and computer.The present application is configured antenna device, the antenna device is arranged in baffle structure, protective cover is connected on the baffle structure, form the antenna device includes: low-frequency structure, the low-frequency structure is double-layer straight line bending metal sheet body, upper metal sheet body is rectangle, lower metal sheet body is Han type structure, the opening end of the lower metal sheet body is connected with the upper metal sheet body by metal connecting block;The closed end of the lower metal sheet body is connected with port structure and high-frequency structure, the port structure is rectangular metal patch, and it is at right angles with the lower metal sheet body, one end of the high-frequency structure is block structure, the other end is connected with the lower metal sheet;Two parallel metal line gaps of the lower metal sheet body are arranged fixed ground structure, and the fixed ground structure is connected with the baffle structure.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic antenna design, and more particularly to a computer rear panel antenna module and a computer. Background Technology

[0002] Currently, desktop computers typically use rod-shaped antennas for PCIe wireless modules. The length of these antennas can affect the structural stability of other external cables and components, as well as the spatial layout of the computer.

[0003] To avoid the aforementioned problems, one feasible option is to use a hidden antenna in the design phase. However, using a hidden antenna in a desktop computer requires redesigning the computer structure and antenna mounting structure, impacting the design and production cycle of the desktop computer and failing to address the issues present in existing computers that do not use hidden antennas. Another feasible option is to redesign the antenna structure so that it meets the performance requirements of the computer's wireless communication while also achieving stability and compactness. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, the present invention provides a computer rear panel antenna module and a computer.

[0005] In a first aspect, the present invention provides a computer rear panel antenna module, comprising: an antenna device, a panel structure, and a protective cover, wherein:

[0006] The antenna device includes: a low-frequency structure, which is a double-layered straight-line bent metal sheet, the upper metal sheet being rectangular and the lower metal sheet being U-shaped. The open end of the lower metal sheet is connected to the upper metal sheet via a metal connecting block. The closed end of the lower metal sheet is connected to a port structure and a high-frequency structure. The port structure is a rectangular metal patch perpendicular to the lower metal sheet. One end of the high-frequency structure is a block-shaped structure, and the other end is connected to the lower metal sheet. A fixed ground structure is disposed between the gaps of two parallel metal lines of the lower metal sheet. The fixed ground structure is connected to the baffle structure, and the protective cover is connected to the baffle structure.

[0007] Furthermore, the gaps between the parallel metal lines of the lower metal sheet are greater than the width of the upper metal sheet and the width of the metal connecting block.

[0008] Furthermore, the antenna device adopts a single antenna structure or a dual antenna structure.

[0009] Furthermore, the paired antenna devices are symmetrically fixed on the baffle structure to form a dual-antenna structure; when the dual-antenna structure is set on the baffle structure, an isolation device is arranged on the baffle structure at the center position between the paired antenna devices.

[0010] Furthermore, the main body of the isolation device is a metal sheet that is continuously and periodically bent. The bending of the main body of the isolation device forms multiple sets of vertical metal barrier surfaces that block the dual antenna structure. The main body of the isolation device is fixed to the baffle structure by an L-shaped connecting plate.

[0011] Furthermore, the horizontal length of the L-shaped connecting plate is twice greater than the horizontal width of the main body of the periodically bent isolating device; the vertical height of the isolating device is greater than the vertical height of the dual-antenna structure.

[0012] Furthermore, the fixed structure includes a fixed hook and a positioning post, wherein the fixed hook is perpendicular to the lower metal sheet, the baffle structure is provided with a fixed interface portion corresponding to the fixed structure, the top of the fixed interface portion is provided with a slot matching the positioning post, and the side wall of the fixed interface portion is provided with a receiving groove matching the fixed hook.

[0013] Furthermore, the baffle structure includes: a protective cover edge fixing part, a wire hole, and a computer rear baffle connecting part, wherein: the protective cover edge fixing part is a parallel snap-on edge strip provided on the main body of the baffle structure for fixing the protective cover; the wire hole corresponds to the port structure in position, and the computer rear baffle connecting part is used to fix the baffle structure to the computer rear baffle.

[0014] Furthermore, the protective cover is a square cover made of low-loss plastic material for electromagnetic signals, and the protective cover is fixed to the baffle structure by structural hooks or adhesive.

[0015] Secondly, the present invention provides a computer, wherein the computer rear panel antenna module is fixed on the rear panel of the computer, and the radio frequency antenna wire of the computer is connected to the antenna device of the computer rear panel antenna module.

[0016] The technical solutions provided in the embodiments of the present invention have the following advantages compared with the prior art:

[0017] The antenna device described in this invention includes both low-frequency and high-frequency structures in its design. The antenna device supports the transmission and reception of wireless signals at different frequencies, meeting the current performance requirements of computer antennas for transmitting and receiving 2.4GHz, 5.1GHz, and 5.8GHz signals.

[0018] The low-frequency structure described in this invention is a double-layered, straight-line bent metal sheet, comprising an upper metal sheet and a lower metal sheet. The upper metal sheet is rectangular, and the lower metal sheet is U-shaped. The open end of the lower metal sheet is connected to the upper metal sheet via a metal connecting block. The closed end of the lower metal sheet is connected to a port structure and a high-frequency structure. The port structure is a rectangular metal patch perpendicular to the lower metal sheet. One end of the high-frequency structure is a block-shaped structure, and the other end is connected to the lower metal sheet. A fixed ground structure is provided between the gaps of the two parallel metal lines of the lower metal sheet. The antenna device exhibits good performance in impedance S-parameter testing, operating efficiency testing, electric field distribution testing, and radiation direction testing: it has good return loss characteristics, dual-antenna isolation performance, and an effective maximum radiation gain value.

[0019] When using a dual-antenna structure, electric field distribution tests and impedance S-parameter tests show that the isolation device is effective in isolating signals and effectively avoids signal interference between antenna devices in the dual-antenna structure.

[0020] The baffle structure and the protective cover form a square antenna protection structure. When installed on the back panel of the computer, the baffle structure fits snugly against the back panel of the computer. Compared with the existing rod antenna, it is more stable in structure and more compact in space. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a computer rear panel antenna module with a dual-antenna structure provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of a protective cover for a computer rear panel antenna module employing a dual-antenna structure, provided in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of an antenna device provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the baffle structure provided in an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the fixed interface portion provided in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of an isolation device provided in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the impedance S-parameter simulation test results of Embodiment 1 of the present invention;

[0030] Figure 8 This is a schematic diagram of the simulation test results of the working efficiency of Embodiment 1 of the present invention;

[0031] Figure 9 This is a schematic diagram of the electric field distribution simulation test of Embodiment 1 of the present invention at 2.4 GHz, 5.1 GHz and 5.8 GHz;

[0032] Figure 10 This is a schematic diagram of the radiation direction at 2.4 GHz, 5.1 GHz and 5.8 GHz in Embodiment 1 of the present invention.

[0033] The labels and their meanings in the diagram are as follows:

[0034] 1. Antenna device; 11. Low-frequency structure; 12. Port structure; 13. High-frequency structure; 14. Fixed ground structure; 2. Isolation device; 3. Baffle structure; 31. Fixed interface part; 32. Protective cover edge fixing part; 33. Wire hole; 34. Computer rear baffle connection part; 4. Protective cover. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Example 1

[0038] Currently, desktop computers typically use rod-shaped antennas for PCIe wireless modules. The length of these antennas can affect the structural stability of other external cables and components, and also impact the computer's spatial layout. (See also...) Figure 1 and Figure 2 As shown, this embodiment of the invention provides a computer rear panel antenna module, which includes: an antenna device 1, a baffle structure 3, and a protective cover 4.

[0039] like Figure 3 As shown, the antenna device 1 includes: a low-frequency structure 11, a port structure 12, a high-frequency structure 13, and a fixed ground structure 14. Specifically: the low-frequency structure 11 is a double-layered, straight-bent metal sheet, with the upper metal sheet being rectangular and the lower metal sheet being U-shaped. The open end of the lower metal sheet is connected to the upper metal sheet via a metal connecting block; the rectangular upper metal sheet and the U-shaped lower metal sheet are parallel and have the same thickness and length. The closed end of the lower metal sheet is connected to the port structure 12 and the high-frequency structure 13.

[0040] In one preferred embodiment, the gap between the two parallel metal lines in the lower metal sheet is greater than the width of the upper metal sheet.

[0041] The port structure 12 is a rectangular metal patch and is perpendicular to the lower metal sheet. One end of the high-frequency structure 13 is a block structure, and the other end is connected to the lower metal sheet. Specifically, the height of the block structure of the high-frequency structure 13 is the same as the height of the low-frequency structure 11, and the bottom surface of the block structure is aligned with the bottom surface of the lower metal sheet, and the top surface of the block structure is aligned with the top surface of the upper metal sheet.

[0042] The low-frequency resonant frequency of the antenna generated by the low-frequency structure 11 is mainly affected by the length of the low-frequency structure, while the high-frequency resonant frequency of the antenna generated by the high-frequency structure 13 is mainly affected by the length and height of the high-frequency structure 13. As a preferred dimension parameter, the length of the low-frequency structure 11 is 17 mm, the length of the high-frequency structure 13 is 4.5 mm, and the height of the high-frequency structure 13 is 3 mm.

[0043] A fixed structure 14 is provided between the two parallel metal lines of the lower metal sheet. Specifically, the fixed structure 14 includes a connecting plate, a fixing hook, and a positioning post. The connecting plate is positioned at the center of the gap between the two parallel metal lines and is connected to the closed end of the lower metal sheet. In a preferred embodiment, the width of the connecting plate is equal to the width of the high-frequency structure 13, and the thickness of the connecting plate is equal to the thickness of the lower metal sheet. The fixing hook and the positioning post are located at one end of the connecting plate extending to the middle of the low-frequency structure 11. The fixing hook and the positioning post are perpendicular to the connecting plate and the lower metal sheet. Preferably, the width of the fixing hook is the same as the width of the connecting plate, and the fixing hook is elastic.

[0044] The fixed structure 14 is connected to the baffle structure 3, and the protective cover 4 is connected to the baffle structure 3. For specific implementation details, please refer to... Figure 4 and Figure 5 As shown, the baffle structure 3 is provided with a fixing interface part 31 corresponding to the fixed ground structure 14. The top of the fixing interface part is provided with a slot for matching the positioning post, and the side wall of the fixing interface part is provided with a receiving groove for matching the fixing hook. The fixing interface part 31 fixes the fixed ground structure through the receiving groove and the slot. The baffle structure 3 also includes: a protective cover edge fixing part 32, a wire hole 33, and a computer rear baffle connecting part 34, wherein: the protective cover edge fixing part 32 is a parallel snap-on edge strip provided on the main body of the baffle structure 3, used to fix the protective cover 4; the wire hole 33 corresponds to the port structure 12 in position; and the computer rear baffle connecting part 34 is provided with a fixing slot for fitting and fixing the baffle structure 3 to the computer rear baffle.

[0045] like Figure 1 and Figure 2 As shown in the embodiment of this application, the antenna device 1 on the baffle structure 3 adopts a dual-antenna structure.

[0046] The antenna device 1 adopts a single-antenna structure or a dual-antenna structure. It is compatible with current mainstream WiFi designs, supporting the transmission and reception of 2.4GHz, 5.1GHz, and 5.8GHz signals. As shown in the figure, the paired antenna devices 1 are symmetrically fixed on the baffle structure 3 to form a dual-antenna structure. When the dual-antenna structure is set on the baffle structure 3, an isolation device 2 is disposed on the baffle structure 3 at the center position between the paired antenna devices 1. The isolation device 2 is located in the middle of the dual-antenna structure and is also located on the baffle structure 3.

[0047] See Figure 6As shown, the main body of the isolating device 2 is a continuously and periodically bent metal sheet. The bending of the main body of the isolating device 2 forms multiple sets of vertical metal blocking surfaces that block the dual-antenna structure. The main body of the isolating device 2 is fixed to the baffle structure 3 by an L-shaped connecting plate. The L-shaped connecting plate includes mutually perpendicular horizontal and vertical plates. The vertical plate is connected to the baffle structure 3, and the horizontal plate is connected to the main body of the isolating device 2. Twice the length of the horizontal plate is greater than or equal to the horizontal width of the periodically bent main body of the isolating device 2. The vertical height of the isolating device 2 is greater than the vertical height of the dual-antenna structure. In a preferred embodiment, the height of the main body of the isolating device 2 is 12 mm, and the height of the effective blocking surface of the main body of the isolating device 2 is 11 mm. Figure 6 The number of periodic structures in the main body of the isolation device 2 shown is merely exemplary. In specific implementations, the number of periodic structures in the main body of the isolation device 2 is set according to the isolation performance requirements. The isolation device 2 structure of the present invention can generate good electromagnetic signal isolation performance between the two antennas of the antenna device 1 under the condition of the limited length of the rear baffle.

[0048] The protective cover 4 is a plastic shell with low electromagnetic loss, which can be fixed to the baffle structure 3 by adhesive or clips, covering both the antenna device 1 and the isolation device 2 for protection. The baffle structure and the protective cover form a square antenna protection structure. When installed on the back panel of the computer, the baffle structure fits snugly against the back panel, making it more stable and compact than existing rod antennas.

[0049] In this embodiment, the antenna device 1, the isolation device 2, and the baffle structure 3 are made of pure copper, and the protective cover 4 is made of polytetrafluoroethylene.

[0050] For Example 1, tests were conducted using simulations of working efficiency, electric field distribution, and radiation direction. (See references...) Figure 7 , Figure 8 and Figure 9 Explanation of simulation test point results:

[0051] Figure 7 The simulation test results show the S-parameters (scattering parameters) of Example 1 in the 2.4GHz-2.9GHz and 5GHz-6GHz ranges. For Example 1 with two antenna devices 1, there are a total of four S-parameters:

[0052] S1,1 represents the reflection parameters of the left antenna device when the right antenna device is matched;

[0053] S2,2 represents the reflection parameters of the right antenna device when the left antenna device is matched;

[0054] S1 and S2 represent the reverse transmission parameters from the right antenna device to the left antenna device when the left antenna device is matched;

[0055] S2,1 represents the reverse transmission parameters from the left antenna device to the right antenna device when the right antenna device is matched.

[0056] Figure 7 The fact that S1,1 and S2,2 are less than -9dB and S1,2 and S2,1 are less than -18dB indicates that the antenna performance of Example 1 has good return loss characteristics and dual-antenna isolation performance.

[0057] Figure 8 Simulation test results show that the antenna of Example 1 has a radiation efficiency of more than 80% in the 2.4GHz-2.9GHz and 5GHz-6GHz frequency bands.

[0058] Figure 9 The simulation test results show the electric field distribution diagram of the dual-antenna structure in Example 1 at 2.4 GHz, 5.1 GHz, and 5.8 GHz. It can be seen that an operating electric field is generated in the low-frequency structure of antenna device 1 at 2.4 GHz, and in the high-frequency structure of antenna device 1 at 5.1 GHz and 5.8 GHz. Simultaneously, due to the isolation effect of the isolation device 2, the electric field energy of one antenna device 1 operating in the dual-antenna structure is blocked by the isolation device 2. Figure 9 The simulation test results show that the effective maximum radiation gain of the antenna device 1 on the left is 3.38 dBi, 4.69 dBi, and 5.06 dBi at 2.4 GHz, 5.1 GHz, and 5.8 GHz, respectively, while the effective maximum radiation gain of the antenna device 1 on the right is 2.61 dBi, 5.25 dBi, and 5.02 dBi at 2.4 GHz, 5.1 GHz, and 5.8 GHz, respectively. The difference in gain values ​​between the two antenna devices 1 is due to the asymmetry of the overall device structure of the embodiment.

[0059] Figure 9 The simulation test results show a schematic diagram of the radiation direction of the dual-antenna structure in Example 1 at 2.4 GHz, 5.1 GHz and 5.8 GHz.

[0060] In use, this invention is installed in the PCIe slot of a desktop computer and connected to the port structure 12 of the antenna device 1 via an RF cable. The electromagnetic transceiver signals from the wireless module within the desktop computer are transmitted through the antenna device 1. The overall height of this invention is significantly reduced compared to the rod-shaped antennas of current PCIe wireless modules, contributing to a simpler overall appearance and structural stability of the desktop computer, resulting in a more compact design.

[0061] Example 2

[0062] In a computer rear panel antenna module design provided in this embodiment of the invention, the antenna device 1 adopts a single antenna structure, that is, only one antenna device 1 is set on the panel structure 3, and the isolation device 2 is not required. The protective cover 4 is connected to the panel structure 3. In specific implementation, the panel structure 3 is provided with a fixing interface part 31 corresponding to the fixed ground structure 14. The top of the fixing interface part is provided with a slot for matching the positioning post, and the side wall of the fixing interface part is provided with a receiving groove for matching the fixing hook. The fixing interface part 31 fixes the fixed ground structure through the receiving groove and the slot. The panel structure 3 also includes: a protective cover edge fixing part 32, a wire hole 33, and a computer rear panel connecting part 34, wherein: the protective cover edge fixing part 32 is a parallel snap-on edge strip set on the main body of the panel structure 3, used to fix the protective cover 4; the wire hole 33 corresponds to the port structure 12 in position; and the computer rear panel connecting part 34 is provided with a fixing slot for attaching and fixing the panel structure 3 to the computer rear panel.

[0063] An antenna device 1 is disposed on the baffle structure 3. The antenna device 1 includes a low-frequency structure 11, a port structure 12, a high-frequency structure 13, and a fixed ground structure 14. The low-frequency structure 11 is a double-layered, straight-bent metal sheet. The upper metal sheet is rectangular, and the lower metal sheet is U-shaped. The open end of the lower metal sheet is connected to the upper metal sheet via a metal connecting block. The rectangular upper metal sheet and the U-shaped lower metal sheet are parallel and have the same thickness and length. The closed end of the lower metal sheet is connected to the port structure 12 and the high-frequency structure 13.

[0064] In a preferred embodiment, the gap between the two parallel metal lines in the lower metal sheet is larger than the width of the upper metal sheet. The port structure 12 is a rectangular metal patch perpendicular to the lower metal sheet. One end of the high-frequency structure 13 is a block structure, and the other end is connected to the lower metal sheet. Specifically, the height of the block structure of the high-frequency structure 13 is the same as the height of the low-frequency structure 11, and the bottom surface of the block structure is aligned with the bottom surface of the lower metal sheet, while the top surface of the block structure is aligned with the top surface of the upper metal sheet. The low-frequency resonant frequency of the antenna generated by the low-frequency structure 11 is mainly affected by the length of the low-frequency structure, while the high-frequency resonant frequency of the antenna generated by the high-frequency structure 13 is mainly affected by the length and height of the high-frequency structure 13. As a preferred dimension parameter, the length of the low-frequency structure 11 is 17 mm, the length of the high-frequency structure 13 is 4.5 mm, and the height of the high-frequency structure 13 is 3 mm. A fixed ground structure 14 is provided between the two parallel metal lines of the lower metal sheet. Specifically, the fixed ground structure 14 includes a connecting plate, a fixing hook, and a positioning post. The connecting plate is positioned at the center of the gap between the two parallel metal lines and is connected to the closed end of the lower metal sheet. In a preferred embodiment, the width of the connecting plate is equal to the width of the high-frequency structure 13, and the thickness of the connecting plate is equal to the thickness of the lower metal sheet. The fixing hook and the positioning post are located at one end of the connecting plate extending to the middle of the low-frequency structure 11. The fixing hook and the positioning post are perpendicular to the connecting plate and the lower metal sheet. Preferably, the width of the fixing hook is the same as the width of the connecting plate, and the fixing hook is elastic. The fixed ground structure 14 is connected to the baffle structure 3.

[0065] Example 3

[0066] In a computer rear panel antenna module design provided in an embodiment of the present invention, the antenna device 1 adopts multiple sets of dual antenna structures, that is, at least two sets of dual antenna structures are provided on the panel structure 3, and the isolation device 2 is provided between the two antenna devices 1 in the dual antenna structure and between each set of dual antenna structures.

[0067] Example 4

[0068] This invention provides a computer, wherein a computer rear panel antenna module is fixed on the computer's rear panel, and the computer's radio frequency antenna wire is connected to the antenna device of the computer rear panel antenna module.

[0069] The antenna device described in this invention includes both low-frequency and high-frequency structures in its design. The antenna device supports the transmission and reception of wireless signals at different frequencies, meeting the current performance requirements of computer antennas for transmitting and receiving 2.4GHz, 5.1GHz, and 5.8GHz signals.

[0070] The low-frequency structure described in this invention is a double-layered, straight-line bent metal sheet, comprising an upper metal sheet and a lower metal sheet. The upper metal sheet is rectangular, and the lower metal sheet is U-shaped. The open end of the lower metal sheet is connected to the upper metal sheet via a metal connecting block. The closed end of the lower metal sheet is connected to a port structure and a high-frequency structure. The port structure is a rectangular metal patch perpendicular to the lower metal sheet. One end of the high-frequency structure is a block-shaped structure, and the other end is connected to the lower metal sheet. A fixed ground structure is provided between the gaps of the two parallel metal lines of the lower metal sheet. The antenna device exhibits good performance in impedance S-parameter testing, operating efficiency testing, electric field distribution testing, and radiation direction testing: it has good return loss characteristics, dual-antenna isolation performance, and an effective maximum radiation gain value.

[0071] When using a dual-antenna structure, electric field distribution tests and impedance S-parameter tests show that the isolation device is effective in isolating signals and effectively avoids signal interference between antenna devices in the dual-antenna structure.

[0072] The baffle structure and the protective cover form a square antenna protection structure. When installed on the back panel of the computer, the baffle structure fits snugly against the back panel of the computer. Compared with the existing rod antenna, it is more stable in structure and more compact in space.

[0073] In the embodiments provided by this invention, it should be understood that the disclosed structures can be implemented in other ways. For example, the structural embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, structures, or units, and may be electrical, mechanical, or other forms.

[0074] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0075] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A computer rear panel antenna module, characterized in that, include: A pair of antenna devices (1), a baffle structure (3), and a protective cover (4), wherein: The antenna device (1) includes: a low-frequency structure (11), which is a double-layer straight-bent metal sheet, comprising an upper metal sheet and a lower metal sheet. The upper metal sheet is rectangular, and the lower metal sheet is U-shaped. The open end of the lower metal sheet is connected to the upper metal sheet through a metal connecting block. The gap between the parallel metal lines of the lower metal sheet is greater than the width of the upper metal sheet and the width of the metal connecting block. The closed end of the lower metal sheet is connected to a port structure (12) and a high-frequency structure (13). The port structure (12) is a rectangular metal patch and is perpendicular to the lower metal sheet. One end of the high-frequency structure (13) is a block structure, and the other end is connected to the lower metal sheet. A fixed ground structure (14) is provided between the gaps of the two parallel metal lines of the lower metal sheet. The fixed ground structure is connected to the baffle structure (3), and the protective cover (4) is connected to the baffle structure (3). The paired antenna devices (1) are symmetrically fixed on the baffle structure (3) to form a dual antenna structure; an isolation device (2) is disposed on the baffle structure (3) at the center position between the paired antenna devices (1). The main body of the isolation device (2) is a metal sheet that is continuously and periodically bent. The main body of the isolation device (2) is bent to form multiple sets of vertical metal blocking surfaces that block the dual antenna structure. The main body of the isolation device (2) is fixed to the baffle structure (3) by an L-shaped connecting plate. The length of the horizontal plate of the L-shaped connecting plate is twice the horizontal width of the main body of the periodically bent isolation device (2). The vertical height of the isolation device (2) is greater than the vertical height of the dual antenna structure.

2. The computer rear panel antenna module according to claim 1, characterized in that, The fixed structure (14) includes a fixed hook and a positioning post. The fixed hook is perpendicular to the lower metal sheet. The baffle structure (3) is provided with a fixed interface (31) corresponding to the fixed structure (14). The top of the fixed interface is provided with a slot matching the positioning post, and the side wall of the fixed interface is provided with a receiving groove matching the fixed hook.

3. A computer rear panel antenna module according to claim 1, characterized in that, The baffle structure (3) includes: a protective cover edge fixing part (32), a wire hole (33) and a computer rear baffle connecting part (34), wherein: the protective cover edge fixing part (32) is a parallel snap-on edge strip set on the main body of the baffle structure (3) for fixing the protective cover (4); the wire hole (33) corresponds to the port structure (12) in position, and the computer rear baffle connecting part (34) is used to fix the baffle structure (3) to the computer rear baffle.

4. A computer rear panel antenna module according to claim 1, characterized in that, The protective cover (4) is a square cover made of low-loss plastic material for electromagnetic signals. The protective cover (4) is fixed to the baffle structure (3) by means of structural hooks or adhesive.

5. A computer, characterized in that, The computer's rear panel is fixed with a computer rear panel antenna module as described in any one of claims 1-4, and the computer's radio frequency antenna wire is connected to the antenna device of the computer rear panel antenna module.

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