A CPE with integrated antenna layout structure including screen and battery power

Abstract

This invention discloses a fully integrated antenna layout structure for a CPE with a screen and battery power supply, including a housing assembly, a motherboard, a display module, a battery module, and an antenna assembly. The antenna assembly includes four LTE antennas, two 2.4G Wi-Fi antennas, and two 5.8G Wi-Fi antennas. The four LTE antennas are centrally symmetrically distributed at the four corners of the housing, with the upper two antennas radiating upwards and the lower two antennas radiating downwards. The isolation between any two LTE antennas is no less than 15dB. The two 2.4G Wi-Fi antennas are respectively located on the inner side of the left and right side walls of the housing. Frequency band isolation is achieved through spatial separation of the antennas, and a grounded copper foil is installed inside the housing to shield the display screen and battery from electromagnetic interference. This invention achieves fully integrated 8 antennas within a compact and portable space, with LTE performance comparable to products with external antennas, while reducing cost and size.

Description

Technical Field

[0001] This invention relates to the technical field of wireless communication terminals, and in particular to the technical field of a CPE with a screen and battery power supply and a fully integrated antenna layout structure. Background Technology

[0002] With the widespread adoption of 4G LTE communication technology and the common use of dual-band Wi-Fi (2.4GHz / 5.8GHz), CPE (Customer Premises Equipment), as the core of wireless access in home and small office scenarios, faces continuously increasing demands for performance, portability, integration, and cost control. The LTE Cat12 standard, with its 4×4 MIMO technology, enables higher downlink speeds, while the combination of the wide coverage of 2.4GHz Wi-Fi and the high speed of 5.8GHz Wi-Fi can meet the diverse needs of multiple devices accessing simultaneously. Therefore, CPEs integrating 4 LTE antennas + 2.4GHz antennas + 2.8GHz antennas have become the mainstream development direction. Especially in scenarios such as mobile offices, temporary outdoor networking, and areas with unstable power supply, the demand for portable CPEs with displays (for interactive operation and status display) and battery power is increasingly urgent.

[0003] In the existing technology, there are several technical solutions for CPE antenna layout. For example, Chinese patent CN112821068B discloses an antenna module and a customer front-end device, which achieves high isolation and omnidirectional coverage between 4G / 5G signals and WiFi signals through orthogonal polarization design of horizontal and vertical polarization radiating units. However, this solution is mainly for non-portable tower-type CPEs and does not address the space constraints and interference shielding issues of portable devices with displays and battery power. Chinese patent CN213753010U discloses a detachable CPE multi-antenna split assembly structure, which designs multiple antennas as detachable external antennas to improve signal performance. However, the external antenna structure increases the device size, reduces portability, and makes it susceptible to damage from bumps and knocks, making it unsuitable for battery-powered CPEs in mobile scenarios.

[0004] However, existing CPE devices suffer from the following technical defects in antenna layout and integration design, making it difficult to balance performance, portability, cost, and anti-interference: First, external antenna solutions have inherent flaws. To avoid mutual interference between LTE and Wi-Fi signals and ensure LTE communication performance, most products adopt an external antenna design, placing the LTE and Wi-Fi antennas separately on the outside of the device housing to reduce signal coupling through physical spacing. However, external antennas require additional installation structures and protective components, which not only increases the size and weight of the device, reducing portability, but also makes it susceptible to damage from bumps and drops, and has poor aesthetics, especially unsuitable for battery-powered CPEs used in mobile applications; at the same time, the material and assembly costs of external antennas are higher, resulting in a higher overall product cost and a lack of market competitiveness. Second, existing fully integrated antenna solutions have performance shortcomings. To mitigate multi-band interference, two approaches are needed: First, a configuration of "4 LTE antennas + 2.4G / 5.8G Wi-Fi sharing 2 antennas" is adopted. This reduces the number of Wi-Fi antennas, sacrificing the independent performance of dual-band Wi-Fi. While this reduces some coexistence interference, it prevents dedicated channel optimization for 2.4G and 5.8G Wi-Fi, leading to transmission bottlenecks in high-speed, multi-terminal access scenarios. Second, to achieve full integration of "2.4G Wi-Fi 2 antennas + 5.8G Wi-Fi 2 antennas + 4 LTE antennas," the physical spacing between antennas must be increased to reduce signal coupling. However, this directly results in increased device size, violating the miniaturization requirements of portable CPEs. Even with increased space, it's difficult to completely avoid the inherent interference between LTE and Wi-Fi bands, ultimately resulting in significantly lower LTE performance compared to products with external antennas, failing to achieve a balance between performance and integration. Third, the screen and battery present interference challenges. Battery-powered CPEs with displays need to balance human-computer interaction with portability and battery life. The internal space of the device is more compact, and the screen and battery components will occupy a lot of internal space. They are also prone to blocking antenna radiation performance and electromagnetic interference, which further increases the design difficulty of a fully built-in multi-antenna layout.

[0005] In summary, existing technologies for CPEs with integrated antennas, including screens and battery power, consistently face four core challenges: balancing full integration with performance, multi-band signal interference resistance, screen / battery compatibility with antennas, and cost control. Particularly within the compact space of a portable casing no more than 200mm in length, 150mm in width, and 35mm in thickness, current technologies cannot achieve a fully integrated layout of eight antennas: four LTE antennas, two 2.4G Wi-Fi antennas, and two 5.8G Wi-Fi antennas. Furthermore, they cannot simultaneously address the electromagnetic interference from the screen and battery to the antennas within this confined space. Therefore, achieving a reasonable arrangement of eight antennas within a limited internal space—avoiding frequency band interference between LTE and Wi-Fi, electromagnetic interference from the screen and battery, ensuring the radiation efficiency of each antenna, maintaining LTE performance comparable to external antenna products, meeting Wi-Fi performance requirements, and simultaneously reducing product costs—has become a pressing technical challenge in this field. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a fully built-in antenna layout structure for a CPE with a screen and battery power supply. This solves the problems in the antenna layout design of existing CPEs with screens and battery power supply, such as the large size and poor portability of external antennas, compromises or expansion of the performance of fully built-in antennas, and serious electromagnetic interference from the screen and battery to the antenna.

[0007] To achieve the above objectives, this invention proposes a fully integrated antenna layout structure for a CPE with a screen and battery power supply, comprising a housing assembly, a motherboard, a display module, and a battery module disposed within the housing assembly. The housing assembly has the following dimensions: length not exceeding 200mm, width not exceeding 150mm, and thickness not exceeding 35mm. It also includes antenna assemblies entirely integrated within the housing assembly, comprising four LTE antennas, two 2.4G Wi-Fi antennas, and two 5.8G Wi-Fi antennas. The housing assembly includes a front shell and a rear shell, which are fastened together to form an internal space that accommodates the motherboard, display module, battery module and antenna assembly; The four LTE antennas are respectively located in the four corner areas inside the housing assembly, and are centrally symmetrically distributed; wherein, the LTE main antenna is located in the upper left corner area, the LTE diversity antenna is located in the upper right corner area, the LTE MIMO1 antenna is located in the lower left corner area, and the LTE MIMO2 antenna is located in the lower right corner area. The two 2.4G Wi-Fi antennas are respectively disposed on the inner side of the middle of the left side wall and the inner side of the middle of the right side wall of the housing assembly, wherein the 2.4G Wi-Fi1 antenna is located on the inner side of the middle of the left side wall and the 2.4G Wi-Fi2 antenna is located on the inner side of the middle of the right side wall; The two 5.8G Wi-Fi antennas are located in the top area of ​​the front cover, with the 5.8G Wi-Fi1 antenna located slightly to the left of the center of the top of the front cover, and the 5.8G Wi-Fi2 antenna located at the right corner of the top of the front cover. The four LTE antennas, two 2.4G Wi-Fi antennas, and two 5.8G Wi-Fi antennas are independently configured, and the LTE antennas and Wi-Fi antennas are spatially separated to achieve frequency band isolation. The radiation directions of the LTE main antenna and LTE diversity antenna are directed towards the top of the housing assembly, while the radiation directions of the LTE MIMO1 antenna and LTE MIMO2 antenna are directed towards the bottom of the housing assembly. The radiation directions of the four LTE antennas are centrally symmetrical about the geometric center of the housing assembly. The isolation between any two of the four LTE antennas is not less than 15dB. The distance between the 2.4G Wi-Fi antenna and the nearest LTE antenna is not less than 15mm, and the distance between the 5.8G Wi-Fi antenna and the nearest LTE antenna is not less than 10mm. A grounding copper foil is provided inside the housing assembly. The grounding copper foil is located on the back of the display module and / or the surface of the battery module. The grounding copper foil is electrically connected to the grounding point on the motherboard to shield the display module and battery module from electromagnetic interference to the antenna assembly.

[0008] Preferably, the spacing between the LTE main antenna and the LTE diversity antenna is not less than 60% of the width of the housing assembly; and the spacing between the LTE main antenna and the LTE MIMO1 antenna is not less than 60% of the length of the housing assembly.

[0009] Preferably, the 2.4G Wi-Fi1 antenna and the 2.4G Wi-Fi2 antenna are fixed to the inner side of the middle of the left side wall and the inner side of the middle of the right side wall of the housing assembly by adhesive bonding, and the 2.4G Wi-Fi1 antenna and the 2.4G Wi-Fi2 antenna are symmetrically arranged about the longitudinal central axis of the housing assembly.

[0010] Preferably, the 5.8G Wi-Fi 1 antenna is fixed to the inner wall of the top of the front shell by adhesive, and the 5.8G Wi-Fi 1 antenna is located slightly to the left of the middle between the LTE main antenna and the LTE diversity antenna; the 5.8G Wi-Fi 2 antenna is fixed to the inner wall of the right corner of the top of the front shell by adhesive, and the 5.8G Wi-Fi 2 antenna is arranged adjacent to the LTE diversity antenna.

[0011] Preferably, the isolation between the LTE antenna and the 2.4G Wi-Fi antenna is not less than 15dB, and the isolation between the LTE antenna and the 5.8G Wi-Fi antenna is not less than 15dB.

[0012] Preferably, the two 2.4G Wi-Fi antennas are located in the middle of the side wall of the housing assembly, and are positioned vertically between the upper LTE antenna and the lower LTE antenna; the two 5.8G Wi-Fi antennas are located at the top of the front shell, forming a vertically layered isolation with the 2.4G Wi-Fi antennas located in the middle of the left and right side walls of the housing assembly.

[0013] Preferably, the grounding copper foil is adhered to the back of the display module and the surface of the battery module with conductive adhesive, and the grounding copper foil is electrically connected to the grounding pad on the motherboard by pressing it with conductive foam or elastic grounding sheet.

[0014] Preferably, the display module is disposed on the front of the front shell, the motherboard is disposed on the back of the display module, and the battery module is disposed between the motherboard and the rear shell; each antenna in the antenna assembly is disposed on the edge area of ​​the motherboard or the inner side wall of the shell assembly, and each antenna is at least separated from the display module by the motherboard.

[0015] Preferably, the battery module is located in the lower center of the housing assembly, with the top edge of the battery module lower than the center height of the 2.4G Wi-Fi antenna, and the left and right edges of the battery module maintaining a distance of not less than 5mm from the 2.4G Wi-Fi1 antenna and the 2.4G Wi-Fi2 antenna, respectively.

[0016] Preferably, the main and diversity LTE antennas are all of the same type, either FPC flexible circuit board antennas or PCB circuit board antennas, and each antenna is electrically connected to the corresponding RF connector on the motherboard via a coaxial cable (15); antenna positioning protrusions are respectively provided on the inner side of the left side wall, the inner side of the right side wall, and the inner side of the top of the front shell of the housing assembly (the eight antennas, including two 2.4G Wi-Fi antennas and two 5.8G Wi-Fi antennas, are all PCB circuit board antennas, and each PCB circuit board antenna is electrically connected to the corresponding RF connector on the motherboard via a coaxial cable (15); antenna positioning protrusions (16) are respectively provided on the inner side of the left side wall, the inner side of the right side wall, and the inner side of the top of the front shell of the housing assembly, and the PCB antennas are fixed to the corresponding antenna positioning protrusions by adhesive bonding).

[0017] The beneficial effects of this invention are as follows: Within a compact and portable housing, this invention achieves a fully internal arrangement of eight antennas by placing four LTE antennas at the four corners of the housing with a centrally symmetrical design in the vertical radiation direction, arranging a 2.4G Wi-Fi antenna in the middle of the left and right side walls, and a 5.8G Wi-Fi antenna at the top of the front housing. This achieves this without sacrificing the number of Wi-Fi antennas or increasing the device's structural space. The isolation between any two of the four LTE antennas is no less than 15dB, meeting the 4×4 MIMO requirement. By shielding the display screen and battery from electromagnetic interference using grounded copper foil, the LTE communication performance of the fully internal solution is close to or reaches the level of products with external antennas. Compared to external antenna solutions, this invention eliminates the need for external antenna installation structures and protective components, reducing costs and size, and enhancing the product's market competitiveness. Attached Figure Description

[0018] The above and other features, properties and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein: Figure 1 This is a schematic diagram of the CPE antenna layout in the prior art; Figure 2 This is a rear view schematic diagram of the CPE fully integrated antenna layout structure of the present invention; Figure 3 This is a schematic diagram of the layered structure of the CPE device of the present invention; Figure 4 This is a schematic diagram of the LTE antenna layout and radiation direction in this invention; Figure 5 This is a schematic diagram of the 2.4G Wi-Fi antenna layout in this invention; Figure 6 This is a schematic diagram of the 5.8G Wi-Fi antenna layout in this invention; Figure 7This is a schematic diagram of the grounding copper foil shielding structure in this invention.

[0019] In the diagram: 1-Motherboard, 2-Display module, 3-Battery module, 4-Front shell, 5-Rear shell, 6-LTE main antenna, 7-LTE diversity antenna, 8-LTE MIMO1 antenna, 9-LTE MIMO2 antenna, 10-2.4G Wi-Fi1 antenna, 11-2.4G Wi-Fi2 antenna, 12-5.8G Wi-Fi1 antenna, 13-5.8G Wi-Fi2 antenna, 14-Grounding copper foil, 15-Coaxial cable, 16-Antenna positioning boss.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] See Figures 1-7 The present invention provides a CPE with a screen and battery power supply with a fully built-in antenna layout structure, which is suitable for portable CPE devices with LTE Cat12 standard, including a housing assembly, a motherboard 1, a display module 2, a battery module 3 and an antenna assembly.

[0023] The housing assembly includes a front shell 4 and a rear shell 5, both made of ABS or PC+ABS engineering plastic with a wall thickness of 1.0-2.0mm. They are fastened together using snap-fit ​​and / or screws to form a sealed rectangular internal space. The front of the front shell 4 has a window area for mounting the display module 2, surrounded by snap-fit ​​structures for securing the display module 2. The outer surface of the rear shell 5 can be textured for a non-slip grip. The housing assembly measures approximately 195mm in length, 150mm in width, and 35mm in thickness, suitable for handheld and desktop use. The bottom of the housing assembly features a USB Type-C charging port and a SIM card slot opening.

[0024] The display module 2 is located on the front of the front shell 4 and is used to display the device's operating status, signal strength, network connection information, etc., and provides a touch operation interface. The display module 2 is electrically connected to the motherboard 1 via an FPC cable.

[0025] The motherboard 1 is located on the back of the display module 2 and is placed horizontally. The motherboard 1 integrates core electronic components such as an LTE Cat12 baseband chip, an RF front-end module, a dual-band Wi-Fi chip, and a power management chip. The motherboard 1 also has eight RF connectors for connecting the coaxial cables 15 of the eight antennas. The ground plane of the motherboard 1 provides a reflective surface and reference ground for the antennas, and also serves as a physical shielding layer between the display module 2 and the antenna assembly. An antenna keep-out zone is provided around the perimeter of the motherboard 1. No copper foil or components are placed within this keep-out zone to avoid affecting the antenna's radiation performance. The width of the antenna keep-out zone is 8mm.

[0026] The battery module 3 is located in the space between the motherboard 1 and the rear shell 5, in the lower-middle area inside the shell assembly. The battery module 3 uses a lithium polymer battery and is encapsulated in a metal casing or aluminum-plastic film. The top edge of the battery module 3 is lower than the center line of the total height of the shell assembly, and the left and right edges of the battery module 3 maintain a gap of at least 5mm between themselves and the left and right sides of the shell assembly, respectively. The battery module 3 is electrically connected to the power management chip on the motherboard 1 via a power connection cable.

[0027] All antenna components are integrated within the housing assembly, including four LTE antennas, two 2.4G Wi-Fi antennas, and two 5.8G Wi-Fi antennas, for a total of eight antennas. All antennas are FPC flexible circuit board antennas. The specific layout of each antenna is described in detail below: LTE Antenna Layout: In the main embodiment, four LTE antennas are centrally symmetrically distributed at the four corners of the motherboard. The LTE main antenna 6 is located in the upper left corner of the motherboard, secured to it with clips. Its radiation direction faces the top of the housing assembly. The LTE main antenna 6 is the primary antenna for receiving and transmitting LTE signals for the CPE device, undertaking the main uplink and downlink communication tasks. The LTE diversity antenna 7 is located in the upper right corner of the motherboard, secured to it with clips. Its radiation direction faces the top of the housing assembly. The LTE diversity antenna 7 receives diversity signals and works in conjunction with the LTE main antenna 6 to implement diversity reception technology, improving signal reception reliability. The LTE MIMO1 antenna 8 is located in the lower left corner of the motherboard, secured to it with clips. Its radiation direction faces the bottom of the housing assembly. The LTE MIMO2 antenna 9 is located in the lower right corner of the motherboard, secured to it with clips. Its radiation direction faces the bottom of the housing assembly. In an alternative embodiment, the four LTE antennas are centrally symmetrically distributed at the four corners of the housing. The LTE main antenna 6 is located in the upper left corner of the housing and is attached to the inner wall of the housing. Its radiation direction is towards the top of the housing assembly. The LTE main antenna 6 is the main antenna for receiving and transmitting LTE signals for the CPE device, undertaking the main uplink and downlink communication tasks. The LTE diversity antenna 7 is located in the upper right corner of the housing and is attached to the inner wall of the housing. Its radiation direction is towards the top of the housing assembly. The LTE diversity antenna 7 is used to receive diversity signals and works in conjunction with the LTE main antenna 6 to implement diversity reception technology, improving the reliability of signal reception. The LTE MIMO1 antenna 8 is located in the lower left corner of the motherboard and is attached to the inner wall of the housing. Its radiation direction is towards the bottom of the housing assembly. The LTE MIMO2 antenna 9 is located in the lower right corner of the motherboard and is attached to the inner wall of the housing. Its radiation direction is towards the bottom of the housing assembly. This antenna distribution, and the changes in the antenna mounting carrier and attachment position in the above alternative embodiments, are conventional adjustments that can be made by those skilled in the art based on the actual product structure. The centrally symmetrical layout of the four LTE antennas maximizes the physical spacing between them, making full use of the space along the diagonal of the housing assembly and facilitating production and assembly. The horizontal spacing between the LTE main antenna 6 and the LTE diversity antenna 7 is approximately 70% of the width of the housing assembly, and the vertical spacing between the LTE main antenna 6 and the LTE MIMO1 antenna 8 is approximately 70% of the length of the housing assembly. Testing shows that the isolation between any two of the four LTE antennas is no less than 15dB, meeting the LTE Cat12 standard requirements for 4×4 MIMO antenna isolation. The upper two LTE antennas (main and diversity) radiate upwards, while the lower two LTE antennas (MIMO1 and MIMO2) radiate downwards, forming a centrally symmetrical radiation pattern about the geometric center of the motherboard. This radiation direction design allows the four LTE signals to form complementary coverage areas in space, which is beneficial for improving the channel capacity of the MIMO system. This makes the LTE communication performance of the fully integrated solution approach or reach the level of products with external antennas.

[0028] 2.4G Wi-Fi Antenna Layout: Two 2.4G Wi-Fi antennas are respectively positioned on the inner side of the left and right sides of the housing assembly. 2.4G Wi-Fi antenna 10 is fixed to the inner side of the left side of the housing assembly using adhesive, with its radiating surface facing the left side of the housing. The feed point of 2.4G Wi-Fi antenna 10 is electrically connected to the fifth RF connector on the motherboard 1 via a coaxial cable 15. 2.4G Wi-Fi antenna 11 is fixed to the inner side of the right side of the housing assembly using adhesive, with its radiating surface facing the right side of the housing. The feed point of 2.4G Wi-Fi antenna 11 is electrically connected to the sixth RF connector on the motherboard 1 via a coaxial cable 15. The 2.4G Wi-Fi 1 antenna 10 and the 2.4G Wi-Fi 2 antenna 11 are symmetrically arranged about the longitudinal central plane of the housing assembly, i.e., the left and right symmetrical planes of the housing assembly. This symmetrical layout ensures that the 2.4G Wi-Fi signal has a uniform coverage range in the left and right directions of the device, avoiding the bias of signal coverage.

[0029] Two 2.4G Wi-Fi antennas are located in the middle of the housing's sidewall, vertically positioned between the upper LTE antenna main / diversity and the lower LTE antenna MIMO1 / MIMO2, and horizontally located at the far left and far right of the housing. This ensures sufficient space between the 2.4G Wi-Fi antennas and the four LTE antennas, effectively reducing inter-band coupling interference between LTE and 2.4G Wi-Fi. Testing shows that the distance between the 2.4G Wi-Fi antenna and the nearest LTE antenna is no less than 15mm, and the isolation between them is no less than 15dB.

[0030] 3. 5.8G Wi-Fi Antenna Layout: Two 5.8G Wi-Fi antennas are positioned at the top of the front housing 4. The 5.8G Wi-Fi 1 antenna 12 is attached to the inner top wall of the front housing 4 using adhesive, located slightly to the left of the center between the LTE main antenna 6 and the LTE diversity antenna 7. The feed point of the 5.8G Wi-Fi 1 antenna 12 is electrically connected to the seventh RF connector on the motherboard 1 via a coaxial cable 15. The 5.8G Wi-Fi 2 antenna 13 is attached to the inner wall at the right corner of the top of the front housing 4 using adhesive, adjacent to the LTE diversity antenna 7. The feed point of the 5.8G Wi-Fi 2 antenna 13 is electrically connected to the eighth RF connector on the motherboard 1 via a coaxial cable 15. The wavelength of the 5.8GHz band is approximately 52mm, resulting in a smaller antenna size compared to the 2.4GHz antenna. Therefore, placing the 5.8G Wi-Fi antennas at the top of the front housing utilizes the space between the LTE antennas and the remaining space at the top of the housing, without significantly increasing space occupancy. Meanwhile, the 5.8G Wi-Fi antenna is located at the top of the housing, forming a vertically layered isolation with the 2.4G Wi-Fi antenna located in the middle of the left and right side walls of the housing, effectively reducing co-band coupling between 2.4G and 5.8G Wi-Fi. The distance between the 5.8G Wi-Fi antenna and the nearest LTE antenna is no less than 10mm, and the isolation between them is no less than 15dB.

[0031] Four-level grounding shielding design: A grounding copper foil 14 is installed inside the housing assembly. The grounding copper foil 14 is a conductive copper foil, which achieves a reliable electrical connection with the grounding layer of the display module 2 through conductive foam. The grounding copper foil 14 is pressed to the grounding pad on the motherboard 1 through conductive foam or elastic grounding sheet to achieve a reliable electrical connection with the motherboard grounding point. The grounding copper foil 14 is installed on the back of the display module 2, which can effectively shield the electromagnetic radiation generated by the display module 2 during operation, which mainly comes from the display drive circuit and backlight module, and prevent it from interfering with the radiation performance of nearby antennas.

[0032] 5. Internal Layered Structure: The internal layered structure of the CPE device of this invention, from front to back, is as follows: front shell 4 → display module 2 → grounding copper foil 14 (back of the display screen) → motherboard 1 → grounding copper foil 14 (battery surface) → battery module 3 → rear shell 5. Each antenna in the antenna assembly is located on the edge area of ​​the motherboard 1 or on the inner side wall of the shell assembly. Specifically, four LTE antennas are fixed to the motherboard or attached to the FPC and then to the shell; two 2.4G Wi-Fi antennas are attached to the inner side of the middle of the left and right side walls of the shell; and two 5.8G Wi-Fi antennas are attached to the top inner wall of the front shell 4. Thus, all antennas are located behind the motherboard 1, i.e., on the side facing the front shell 4, and are at least separated from the display module 2 by the motherboard 1. The ground plane of the motherboard 1 provides a reflective surface for the antennas, which helps to enhance the radiation of the antennas towards the rear shell, while simultaneously blocking electromagnetic interference from the display screen to the antennas.

[0033] Six-antenna mounting and positioning structure: Antenna positioning protrusions 16 are respectively provided on the inner side of the left and right sides of the housing assembly, as well as the inner top and four corner inner walls of the front housing 5. The antenna positioning protrusions 16 are integrally formed protrusions during housing injection molding, with a height of 0.3-0.5mm, and their outline shape matches the corresponding FPC antenna's shape. The FPC antenna is fixed to the plane of the corresponding antenna positioning protrusion 16 using 3M conductive adhesive on the back. The protruding edge of the antenna positioning protrusion 16 acts as a limit, preventing displacement of the antenna during attachment and use. The antenna positioning protrusions 16 enable quick and accurate antenna positioning during production assembly, eliminating the need for additional clamps or positioning tools, reducing assembly difficulty and time, and improving mass production efficiency. Simultaneously, the antenna positioning protrusions 16 ensure consistent antenna installation positions in each product, thereby guaranteeing product performance consistency and stability. Each FPC antenna's feed end is equipped with a standard IPEX RF connector, which is plugged into the corresponding RF connector on the mainboard 1 via a coaxial cable 15. The length of the coaxial cable 15 is determined based on the distance between the antenna position and the motherboard RF connector position. When routing the cable, it should be fixed along the inner wall of the housing or the edge of the motherboard to avoid the cable passing through the antenna radiation area.

[0034] This invention discloses a fully integrated antenna layout structure for a CPE with a screen and battery power supply. During operation, the LTE baseband chip achieves 4×4 MIMO communication through the RF front-end module and four LTE antennas, with a maximum downlink speed of 600Mbps and a maximum uplink speed of 150Mbps. The dual-band Wi-Fi chip provides 2.4GHz and 5.8GHz dual-band Wi-Fi coverage through two 2.4GHz Wi-Fi antennas and two 5.8GHz Wi-Fi antennas, respectively. The 2.4GHz Wi-Fi supports IEEE 802.11b / g / n standards, and the 5.8GHz Wi-Fi supports IEEE 802.11a / n / ac / ax standards. Because the antennas of each frequency band are effectively isolated through a scientific spatial layout, and the grounding copper foil shields the screen and battery, the fully integrated solution is able to approach or reach the level of similarly sized external antenna CPE products in terms of core indicators such as LTE signal reception sensitivity, downlink speed, Wi-Fi coverage, and transmission speed.

[0035] This invention discloses a fully integrated antenna layout structure for a CPE with a screen and battery power supply. It achieves full integration of 8 antennas and performance balance, solves the problems of multi-band interference and screen / battery compatibility, improves product portability and cost advantages, and provides an efficient and reliable antenna layout solution for portable CPE devices with screen and battery power supply. Within a compact and portable housing space with a length no greater than 200mm, a width no greater than 150mm, and a thickness no greater than 35mm, a spatially layered layout is achieved by placing four LTE antennas at the four corners of the housing with a centrally symmetrical design in the vertical radiation direction, placing the 2.4G Wi-Fi antenna in the middle of the left and right side walls, and placing the 5.8G Wi-Fi antenna at the top of the front housing. This completes the fully internal arrangement of eight antennas without sacrificing the number of Wi-Fi antennas or increasing the structural space of the device. The isolation between any two of the four LTE antennas is no less than 15dB, meeting the 4×4 MIMO requirements. By shielding the display screen and battery from electromagnetic interference with grounded copper foil, the LTE communication performance of the fully internal solution is close to or reaches the level of products with external antennas. Compared with external antenna solutions, the installation structure and protective components of external antennas are eliminated, reducing costs and size and enhancing the product's market competitiveness.

[0036] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A CPE with integrated antenna layout structure including screen and battery power, comprising a housing assembly, a main board (1) disposed within the housing assembly, a display module (2) and a battery module (3), characterized in that: The outer dimensions of the housing assembly are: length not greater than 200mm, width not greater than 150mm, and thickness not greater than 35mm; it also includes an antenna assembly fully built into the housing assembly, the antenna assembly including four LTE antennas, two 2.4G Wi-Fi antennas and two 5.8G Wi-Fi antennas; The housing assembly includes a front shell (4) and a rear shell (5), which are fastened together to form an internal space for accommodating the motherboard (1), the display module (2), the battery module (3) and the antenna assembly; The four LTE antennas are respectively located in the four corner areas inside the housing assembly, and are centrally symmetrically distributed; wherein, the LTE main antenna (6) is located in the upper left corner area, the LTE diversity antenna (7) is located in the upper right corner area, the LTE MIMO1 antenna (8) is located in the lower left corner area, and the LTE MIMO2 antenna (9) is located in the lower right corner area. The two 2.4G Wi-Fi antennas are respectively disposed on the inner side of the middle of the left side wall and the inner side of the middle of the right side wall of the housing assembly, wherein the 2.4G Wi-Fi1 antenna (10) is located on the inner side of the middle of the left side wall and the 2.4G Wi-Fi2 antenna (11) is located on the inner side of the middle of the right side wall; The two 5.8G Wi-Fi antennas are located in the top area of ​​the front shell (4), wherein the 5.8G Wi-Fi1 antenna (12) is located in the middle left of the top of the front shell (4), and the 5.8G Wi-Fi2 antenna (13) is located in the right corner of the top of the front shell (4). The four LTE antennas, two 2.4G Wi-Fi antennas, and two 5.8G Wi-Fi antennas are each independently configured, and the LTE antennas and Wi-Fi antennas are separated by spatial location to achieve frequency band isolation; the radiation direction of the LTE main antenna (6) and the LTE diversity antenna (7) is towards the top of the housing assembly, the radiation direction of the LTE MIMO1 antenna (8) and the LTE MIMO2 antenna (9) is towards the bottom of the housing assembly, and the radiation direction of the four LTE antennas is centrally symmetrical about the geometric center of the housing assembly; The isolation between any two of the four LTE antennas is not less than 15dB; the distance between the 2.4G Wi-Fi antenna and the nearest LTE antenna is not less than 15mm, and the distance between the 5.8G Wi-Fi antenna and the nearest LTE antenna is not less than 10mm; a grounding copper foil (14) is provided inside the housing assembly, and the grounding copper foil (14) is provided on the back of the display module (2) and / or the surface of the battery module (3), and the grounding copper foil (14) is electrically connected to the grounding point on the motherboard (1) to shield the electromagnetic interference of the display module (2) and the battery module (3) to the antenna assembly.

2. A CPE with screen and battery powered full internal antenna layout as claimed in claim 1, wherein: The spacing between the LTE main antenna (6) and the LTE diversity antenna (7) is not less than 60% of the width of the housing assembly; the spacing between the LTE main antenna (6) and the LTE MIMO1 antenna (8) is not less than 60% of the length of the housing assembly.

3. A CPE with screen and battery powered full internal antenna layout structure as claimed in claim 1, wherein: The 2.4G Wi-Fi1 antenna (10) and the 2.4G Wi-Fi2 antenna (11) are respectively fixed to the inner side of the middle of the left side wall and the inner side of the middle of the right side wall of the housing assembly by adhesive, and the 2.4G Wi-Fi1 antenna (10) and the 2.4G Wi-Fi2 antenna (11) are symmetrically arranged about the longitudinal central axis of the housing assembly.

4. A CPE with screen and battery powered full internal antenna layout structure as claimed in claim 1, wherein: The 5.8G Wi-Fi 1 antenna (12) is fixed to the inner wall of the top of the front shell (4) by adhesive, and the 5.8G Wi-Fi 1 antenna (12) is located in the middle-left position between the LTE main antenna (6) and the LTE diversity antenna (7); the 5.8G Wi-Fi 2 antenna (13) is fixed to the inner wall of the right corner of the top of the front shell (4) by adhesive, and the 5.8G Wi-Fi 2 antenna (13) is arranged adjacent to the LTE diversity antenna (7).

5. The CPE with screen and battery power supply fully integrated antenna layout structure as described in claim 1, characterized in that: The isolation between the LTE antenna and the 2.4G Wi-Fi antenna is not less than 15dB, and the isolation between the LTE antenna and the 5.8G Wi-Fi antenna is not less than 15dB.

6. A CPE with screen and battery powered full internal antenna layout structure as claimed in claim 1, wherein: The two 2.4G Wi-Fi antennas are located in the middle of the side wall of the housing assembly, and are positioned in the middle between the upper LTE antenna and the lower LTE antenna in the vertical direction; the two 5.8G Wi-Fi antennas are located at the top of the front shell (4), and form a vertical layered isolation with the 2.4G Wi-Fi antennas located in the middle of the left and right side walls of the housing assembly.

7. A CPE all-in-built antenna layout with screen and battery power supply according to any one of claims 1 to 6, characterized in that: The grounding copper foil (14) is attached to the back of the display module (2) and the surface of the battery module (3) by conductive adhesive. The grounding copper foil (14) is electrically connected to the grounding pad on the motherboard (1) by conductive foam or elastic grounding sheet.

8. A CPE with a full internal antenna layout structure with a screen and battery power supply as claimed in claim 7, characterized in that: The display module (2) is disposed on the front of the front shell (4), the motherboard (1) is disposed on the back of the display module (2), and the battery module (3) is disposed between the motherboard (1) and the rear shell (5); each antenna in the antenna assembly is disposed on the edge area of ​​the motherboard (1) or the inner side of the side wall of the shell assembly, and each antenna is at least separated from the display module (2) by the motherboard (1).

9. The CPE fully integrated antenna layout structure with screen and battery power as described in claim 8, characterized in that: The battery module (3) is located in the lower middle part of the housing assembly. The top edge of the battery module (3) is lower than the center height of the 2.4G Wi-Fi antenna. The left and right edges of the battery module (3) maintain a distance of not less than 5mm from the 2.4G Wi-Fi1 antenna (10) and the 2.4G Wi-Fi2 antenna (11).

10. A fully integrated antenna layout structure for a CPE with a screen and battery power supply as described in any one of claims 1-6, characterized in that: The four LTE antennas, two 2.4G Wi-Fi antennas and two 5.8G Wi-Fi antennas are all PCB circuit board antennas. Each PCB antenna is electrically connected to the corresponding RF connector on the motherboard (1) via a coaxial cable (15). Antenna positioning bosses (16) are respectively provided on the inner side of the left side wall, the inner side of the right side wall and the inner side of the top of the rear shell (5). The PCB antennas are fixed to the corresponding antenna positioning bosses (16) by pasting.

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