A foldable device and a laptop

Abstract

This invention provides a foldable device and a laptop computer. The radiation enhancement device includes: a hinge, a top cover, a base, an antenna, and a radiating slot area. The top cover and the base are rotatably connected via the hinge. A connection gap exists between the hinge and the base. The antenna is disposed at the connection between the hinge and the top cover. A radiating slot area is provided on the base at the antenna projection position. The radiating slot area includes multiple radiating slots, which are used to collect and re-radiate the energy emitted by the antenna. The radiating slots are connected to the connection gap to form a secondary radiation system, thereby achieving the collection and transfer of radiated energy, effectively reducing mutual interference between the two antennas, and improving isolation. Furthermore, this embodiment also provides a virtual feed point at the edge of the connecting slot within the radiating slot area. The virtual feed point works collaboratively with the radiating slot area to optimize antenna performance and improve radiation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of antenna communication technology, and specifically relates to a foldable device and a laptop computer. Background Technology

[0002] Nowadays, laptop designs increasingly prioritize aesthetics and refinement, with aluminum alloy becoming a mainstream choice for exterior structural components due to its beauty and durability. However, the use of this material presents challenges for antenna placement. Due to space constraints, antennas are typically integrated inside the laptop's hinge cover. This not only occupies valuable space within the hinge cover but also often results in dual antennas being distributed on the left and right sides of the hinge, increasing design complexity.

[0003] In distributed antenna design, despite attempts to reduce interference through spatial distribution, isolation often falls short of ideal standards. To improve isolation, designers may introduce multiple antenna stubs, but this introduces new problems: stub structures are complex, occupying more space, and often sacrificing overall antenna performance in pursuit of isolation. Summary of the Invention

[0004] This invention provides an antenna design method that improves the isolation between antennas.

[0005] This invention provides a foldable device, comprising: a pivot, a top cover, a base, an antenna, and a radiating slot area;

[0006] The upper cover and the base are rotatably connected by the rotating shaft; a connection gap is provided between the rotating shaft and the base;

[0007] The antenna is located at the connection between the rotating shaft and the upper cover;

[0008] On the base, a radiation groove region is provided at the antenna projection position; the radiation groove region includes multiple radiation grooves, which are used to collect and radiate the energy emitted by the antenna.

[0009] The radiation trough is connected to the connecting gap to form a secondary radiation system.

[0010] Furthermore, the antenna includes a first MIMO antenna and a second MIMO antenna.

[0011] Furthermore, the first MIMO antenna and the second MIMO antenna include high-frequency antenna stubs and low-frequency antenna stubs;

[0012] One end of the low-frequency antenna stub is connected to one end of the high-frequency antenna stub, and the other end of the high-frequency antenna stub is grounded.

[0013] Furthermore, the radiation slot area includes a low-frequency antenna radiation slot corresponding to the low-frequency antenna stub, one end of the low-frequency antenna radiation slot is connected to one end of the high-frequency antenna radiation slot corresponding to the high-frequency radiation stub, and the other end of the high-frequency antenna radiation slot is connected to the connecting gap through a connecting radiation slot.

[0014] Furthermore, a virtual power supply point is provided at the junction of the connecting radiation groove and the connecting gap.

[0015] Furthermore, the virtual feed point is located at 1 / 10 of the wavelength of the low-frequency antenna stub.

[0016] Furthermore, the distance between the first MIMO antenna and the second MIMO antenna is 0-13mm.

[0017] Furthermore, the shape of the radiation groove region is rectangular.

[0018] Furthermore, the radiation trough region adopts a single-polarization design.

[0019] The present invention also provides a laptop computer including the foldable device described above.

[0020] Compared with the prior art, the present invention has at least the following technical effects:

[0021] In this embodiment, the radiation slot area, which is positioned opposite to the projection position of the antenna module at the edge of the base, is combined with the connecting gap formed between the radiation slot and the base and the rotating shaft to form a secondary radiation system. This system collects and transfers the energy radiated by the antenna, effectively reducing mutual interference between the two antennas and improving isolation. Attached Figure Description

[0022] Figure 1 This is a simplified structural diagram of a foldable device according to an embodiment of the present invention;

[0023] Figure 2 This is a diagram showing the positional relationship between the antenna module and the radiating slot region in one embodiment of the present invention;

[0024] Figure 3 This is a comparison diagram of the isolation degree between an antenna module with a radiating slot area and an antenna module without a radiating slot area in one embodiment of the present invention. Detailed Implementation

[0025] The following description, in conjunction with schematic diagrams, illustrates a foldable device and a laptop computer according to the present invention, which represents a preferred embodiment of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0026] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0027] Example 1

[0028] Please refer to Figure 1 and Figure 2 This embodiment provides a foldable device, including: a pivot 14, an upper cover 11, a base 12, an antenna, and a radiating slot area;

[0029] Specifically, the upper cover 11 and the base 12 are rotatably connected by the rotating shaft 14; a connection gap is provided between the rotating shaft 14 and the base 12; the antenna is disposed at the connection between the rotating shaft 14 and the upper cover 11; on the base 12, a radiation groove area is provided at the antenna projection position; the radiation groove area includes multiple radiation grooves, which are used to collect and radiate the energy emitted by the antenna; the radiation grooves are connected to the connection gap to form a secondary radiation system.

[0030] The antenna described in this embodiment is a MIMO (Multiple Input Multiple Output) antenna. In one specific embodiment, the MIMO antenna includes a first MIMO antenna 1 and a second MIMO antenna 2.

[0031] In one specific embodiment, the first MIMO antenna 1 and the second MIMO antenna 2 are arranged side by side at the connection between the upper cover 11 and the rotating shaft 14.

[0032] In a MIMO system, when the first MIMO antenna 1 transmits a signal, the electromagnetic waves of that signal may affect the adjacent second MIMO antenna 2 due to diffraction. Diffraction refers to the bending of the wavefront of an electromagnetic wave when it encounters an obstacle.

[0033] In this embodiment, a first radiating slot region 9 is provided at the projection location of the first MIMO antenna, and a second radiating slot region 10 is provided at the projection location of the second MIMO antenna. By combining the first radiating slot region 9, the second radiating slot region 10, and the connecting gap 13, a secondary radiation system can be formed. This secondary radiation system can collect and transfer the energy radiated by the antenna, thereby optimizing the antenna's transmission and reception performance.

[0034] Specifically, in this embodiment, when the first MIMO antenna 1 transmits a signal, some energy is radiated to the second MIMO antenna 2, causing interference between the two MIMO antennas. The multiple radiation slots within the first radiation slot region 9 can capture some of the energy emitted by the first MIMO antenna 1 and radiate it again, thereby reducing interference to the second MIMO antenna 2. A portion of the energy not captured by the multiple radiation slots within the first radiation slot region 9 propagates at the connection gap 13. This portion of energy is captured and radiated by the multiple radiation slots within the second radiation slot region 10, further reducing interference between the first MIMO antenna 1 and the second MIMO antenna 2.

[0035] As can be seen, in this embodiment, the radiation slot area is set opposite to the projection position of the antenna at the edge of the base 12, and the connection gap 13 formed between the radiation slot and the base 12 and the rotating shaft 14 forms a secondary radiation system, which collects and transfers the energy radiated by the antenna, effectively reduces the mutual interference between the two antennas, and improves the isolation.

[0036] In this embodiment, the design of the radiating slot region includes various polarization forms such as horizontal polarization, vertical polarization, circular polarization, and elliptical polarization. The planned form of the radiating slot region should be as similar as possible to the polarization form of the MIMO antenna.

[0037] In one specific embodiment, the polarization of the radiation slot region is preferably one of the following single polarization forms: horizontal polarization, vertical polarization, circular polarization, and elliptical polarization. The radiation slot with a single polarization can collect as much of the near-field radiation energy that would otherwise be diffracted to another MIMO antenna as possible in the radiation slot, and then radiate the collected energy back into the far field by the radiation slot with a relatively single polarization. Even if some energy is diffracted and propagates along the connecting gap 13, a small portion of the diffracted energy can still be collected and radiated back into free space by the radiation slot region with a single polarization, thereby improving the energy capture and radiation efficiency of the radiation slot region.

[0038] Furthermore, to better match the performance of the radiating slot region with that of the first MIMO antenna 1 and the second MIMO antenna 2, and to improve the energy capture and radiation efficiency of the radiating slot region, the shape design of the radiating slot region should be identical to the projected shape of the first MIMO antenna 1 and the second MIMO antenna 2, and the area difference should be less than a set threshold range. This ensures that the electromagnetic modes of the radiating slot region, the first MIMO antenna 1, and the second MIMO antenna 2 are consistent, thereby generating a synergistic effect in space. This helps the radiating slot region corresponding to the MIMO antenna to more effectively capture the electromagnetic energy emitted by the MIMO antenna.

[0039] It is understood that the shape of the antenna can also be circular, triangular, or elliptical, etc. Therefore, the shape of the slot can also be circular, triangular, or elliptical, respectively.

[0040] Furthermore, the aforementioned isolation device design incorporates virtual feeding technology, which optimizes antenna radiation performance by creating a non-physically contacted feeding point at a specific location on the antenna. This technology utilizes the coupling principle of electromagnetic fields to improve the antenna's radiation efficiency and isolation, leveraging the sensitivity of the virtual feeding power port to electric fields to enhance radiation efficiency. This port is not directly connected to the antenna but influences its radiation performance through electromagnetic coupling.

[0041] In this embodiment, the virtual feed point 7 is located at the connection between the connecting radiating slot and the connecting gap 13. The virtual feed point 7 works in conjunction with the radiating slot region to optimize antenna performance. The radiating slot region is used to capture and reradiate electromagnetic energy that may interfere with another antenna, while the virtual feed point 7 is used to improve radiation efficiency.

[0042] In this embodiment, the first MIMO antenna 1 and the second MIMO antenna 2 include a high-frequency antenna stub 3 and a low-frequency antenna stub 4; one end of the low-frequency antenna stub 4 is connected to one end of the high-frequency antenna stub 3, and the other end of the high-frequency antenna stub 3 is grounded.

[0043] Specifically, the first radiating slot region 9 corresponding to the first MIMO antenna 1 includes a low-frequency antenna radiating slot 5 corresponding to the low-frequency antenna stub 4. The low-frequency antenna radiating slot 5 is connected to the high-frequency antenna radiating slot 6 corresponding to the high-frequency radiating stub through a first connecting radiating slot 15. The high-frequency antenna radiating slot 6 is also connected to the connecting gap 13 through a second connecting radiating slot 16.

[0044] Furthermore, the second radiating slot region 10 corresponding to the second MIMO antenna 2 includes a low-frequency antenna radiating slot 5 corresponding to the low-frequency antenna stub 4. The low-frequency antenna radiating slot 5 is connected to the high-frequency antenna radiating slot 6 corresponding to the high-frequency radiating stub through a first connecting radiating slot 15. The high-frequency antenna radiating slot 6 is also connected to the connecting gap 13 through a second connecting radiating slot 16.

[0045] It is understood that the length of the radiation slot can be adjusted according to the isolation between the MIMO antennas. The lengths of the radiation slots in the two radiation slot regions can be set to be different or the same, and no specific restrictions are imposed here.

[0046] In this embodiment, both the low-frequency antenna radiating slot 5 and the high-frequency antenna radiating slot 6 are rectangular. The antenna radiating slots and the connecting radiating slots are perpendicular to each other.

[0047] Furthermore, in order to further improve the isolation between antennas, this embodiment also provides an extension 8 at one end of the high-frequency antenna radiation slot 6 corresponding to the second MIMO antenna 2. The extension 8 is located on the side close to the first radiation slot region 9. The provision of the extension 8 is beneficial to further improve the collection of radiated energy in the radiation slot region.

[0048] Specifically, the extension 8 is arranged perpendicularly to the high-frequency antenna radiation slot 6 of the second MIMO antenna 2.

[0049] In one specific embodiment, the first MIMO antenna 1 and the second MIMO antenna 2 are rectangular in shape, therefore, the radiation slot region corresponding to the MIMO antenna is also rectangular.

[0050] In one specific embodiment, the area of ​​the first MIMO antenna 1 and the second MIMO antenna 2 is 27*5mm, and the area of ​​the radiation slot region corresponding to the first MIMO antenna 1 and the second MIMO antenna 2 is 26*5mm, with a very small difference in area between the two.

[0051] In another specific embodiment, the low-frequency antenna stub 4 of the first MIMO antenna 1 is designed for the 2.4GHz band, and the high-frequency antenna stub 3 is designed for the 5GHz band. The width of both antenna stubs is 5mm.

[0052] The length of the low-frequency antenna radiating slot 5 corresponding to the low-frequency antenna stub 4 of the first MIMO antenna 1 is 20mm, and the width is the same as that of the low-frequency antenna stub 4. The length of the high-frequency antenna radiating slot 6 corresponding to the high-frequency antenna stub 3 is 13mm, and the width is the same as that of the high-frequency antenna stub 3.

[0053] In another specific embodiment, the low-frequency antenna stub 4 of the second MIMO antenna 2 is designed for the 2.4GHz band, and the high-frequency antenna stub 3 is designed for the 5GHz band. The width of both antenna stubs is 5mm. The length of the low-frequency antenna radiating slot 5 corresponding to the low-frequency antenna stub 4 of the second MIMO antenna 2 is 21mm, and the width is the same as that of the low-frequency antenna stub 4. The length of the high-frequency antenna radiating slot 6 corresponding to the high-frequency antenna stub is 8mm, and the width is the same as that of the high-frequency antenna stub 3.

[0054] In another specific embodiment, the virtual feed point 7 is located at 1 / 10 of the wavelength of the 2.5G low-frequency arm.

[0055] Please refer to Figure 3By employing the antenna module and the parameter design of the radiating slot in the radiating slot region disclosed in the above specific embodiments, even if the distance between the first MIMO antenna 1 and the second MIMO antenna 2 is very close, for example, only 13mm apart, the system can still achieve high isolation, reaching over -30dB. Compared to a dual MIMO antenna without a radiating slot region, the isolation can be improved by at least 10dB.

[0056] Furthermore, the foldable device disclosed in this embodiment can be applied to foldable devices such as laptops and foldable phones. The specific parameters of the radiation area and radiation slots are adjusted according to the actual antenna design.

[0057] In summary, this embodiment utilizes a radiating slot area positioned opposite the projection location of the antenna module at the edge of the base 12. This radiating slot area includes a low-frequency antenna radiating slot 5 and a high-frequency antenna radiating slot 6. This area collects and radiates the energy emitted by the antenna. The radiating slot, combined with the connecting gap 13 formed between the base 12 and the rotating shaft 14, creates a secondary radiation system that collects and transfers the energy radiated by the antenna, effectively reducing mutual interference between the two antennas and improving isolation. Furthermore, this embodiment also includes a virtual feed point 7 positioned at the edge of the connecting slot within the radiating slot area. The virtual feed point 7 works collaboratively with the radiating slot area to optimize antenna performance and improve antenna radiation efficiency.

[0058] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A foldable device, characterized by, include: The hinge, top cover, base, antenna, and radiating slot area; The upper cover and the base are rotatably connected by the rotating shaft; a connection gap is provided between the rotating shaft and the base; The antenna is located at the connection between the rotating shaft and the upper cover; On the base, a radiation groove region is provided at the antenna projection position; the radiation groove region includes multiple radiation grooves, which are used to collect and radiate the energy emitted by the antenna. The radiation groove is connected to the connecting gap to form a secondary radiation system; The radiation slot area includes a low-frequency antenna radiation slot corresponding to a low-frequency antenna stub. The low-frequency antenna radiation slot is connected to a high-frequency antenna radiation slot corresponding to a high-frequency antenna stub through a connecting slot. The high-frequency antenna radiation slot is connected to the connecting gap through a connecting radiation slot. A virtual power supply point is provided at the junction of the connecting radiation groove and the connecting gap.

2. The foldable device as claimed in claim 1, characterized in that, The virtual feed point is located at 1 / 10 of the wavelength of the low-frequency antenna stub.

3. The foldable device as claimed in claim 1, characterized in that, The antenna includes a first MIMO antenna and a second MIMO antenna.

4. The foldable device as claimed in claim 3, characterized in that, The first MIMO antenna and the second MIMO antenna include high-frequency antenna stubs and low-frequency antenna stubs; One end of the low-frequency antenna stub is connected to one end of the high-frequency antenna stub, and the other end of the high-frequency antenna stub is grounded.

5. The foldable device as claimed in claim 3, characterized in that, The distance between the first MIMO antenna and the second MIMO antenna is 0-13mm.

6. The foldable device as claimed in claim 1, characterized in that, The shape of the radiation trough region is rectangular.

7. The foldable device as claimed in claim 1, characterized in that, The radiation trough region adopts a single-polarization design.

8. A laptop computer, characterized in that, Includes the foldable device as described in any one of claims 1-7.

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