Antenna and electronic equipment
By setting up isolation units between MIMO antenna elements, and using positive and negative electrons to form an electromagnetic field to block mutual coupling, the problem of insufficient antenna isolation is solved, thereby improving isolation and simplifying the structure.
Patent Information
- Application Number
- CN202422928788.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In existing technologies, the isolation between MIMO antenna elements is insufficient, resulting in complex antenna structures, large sizes, and narrow bandwidths, which is not significantly improved, especially in laptop antennas.
An isolation unit is set between adjacent antenna elements, including first and second isolation branches forming a three-dimensional isolation structure to isolate the first and second antennas, and to use positive and negative electrons to form an electromagnetic field to block mutual coupling.
It significantly improves the isolation between antennas, enhances the isolation performance of the frequency band, and reduces the complexity and size of the antennas.
Smart Images
Figure CN223599025U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of antennas, and in particular, to an antenna and an electronic device. BACKGROUND
[0002] With the rapid development of wireless communication technology, WLAN has been widely used in people's daily life. In the face of more and more complex application scenarios and higher performance requirements, WLAN antennas have become a reliable and effective design method due to their obvious technical advantages. At the same time, the trend of wireless terminal miniaturization has intensified the coupling between MIMO (Multiple-Input Multiple-Output) antenna units, and improving the isolation between MIMO antenna units has become a key problem to be solved.
[0003] At present, the general methods for improving antenna isolation are polarization diversity method, decoupling network method, narrow super material method, neutral line method, etc. Although these traditional optimization isolation methods can improve the isolation between unit antennas to some extent, the designed antennas generally have problems such as complex structure, large size, narrow bandwidth, etc., and have little effect on improving notebook antennas. CONTENT OF THE INVENTION
[0004] The present disclosure provides an antenna and an electronic device to at least solve the above technical problems existing in the prior art.
[0005] According to a first aspect of the present disclosure, an antenna applied to an electronic device is provided, and the antenna comprises:
[0006] a circuit board;
[0007] an antenna unit arranged on the circuit board, the antenna unit comprising a first antenna and a second antenna arranged adjacent to each other;
[0008] an isolation unit arranged on one end of the first antenna close to the second antenna, the isolation unit comprising a first isolation stub and a second isolation stub, the first isolation stub and the second isolation stub being formed into a three-dimensional isolation structure to isolate the first antenna and the second antenna.
[0009] In an implementable manner, the isolation unit arranged on one end of the first antenna close to the second antenna comprises:
[0010] the first antenna comprises a first feeding line, and the isolation unit is arranged on the first feeding line.
[0011] In an implementable manner, the present disclosure further comprises:
[0012] A first support member, wherein the first isolation branch is disposed on the side of the first support member away from the circuit board;
[0013] The second isolation branch covers all surfaces of the first support member except for the side furthest from the circuit board.
[0014] In one possible implementation, one end of the first isolation branch and the second isolation branch are connected, while the other end is not connected, so that the isolation unit forms a semi-closed isolation structure.
[0015] In one embodiment, the length of the first isolated branch ranges from 5 to 8 mm, the width ranges from 1 to 2 mm, and the thickness ranges from 0.02 to 0.03 mm.
[0016] In one embodiment, the second isolated branch has a length ranging from 20 to 25 mm, a width ranging from 0.3 to 0.8 mm, and a thickness ranging from 0.04 to 0.06 mm.
[0017] In one possible implementation, the material of the first isolation branch includes copper foil.
[0018] In one embodiment, the second isolation branch includes a two-layer structure, with the inner layer being made of plastic and the outer layer being made of sputtered metallic paint.
[0019] In one embodiment, the first isolation stub carries negative electrons and the second isolation stub carries positive electrons to isolate the mutual coupling between the first antenna and the second antenna.
[0020] According to a second aspect of this disclosure, an electronic device is provided, including an antenna as described in any of the embodiments above.
[0021] The antenna and electronic device disclosed herein improve the isolation between the first antenna and the second antenna by forming a three-dimensional isolation structure between the two antennas, which is jointly formed by the first isolation stub and the second isolation stub.
[0022] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description
[0023] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:
[0024] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
[0025] Figure 1 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure is shown in the following figure:
[0026] Figure 2 A structural schematic diagram of an isolation structure provided by an embodiment of the present disclosure is shown in the following figure:
[0027] Figure 3 A measured result diagram of an antenna without an isolation unit of the present disclosure is shown in the following figure:
[0028] Figure 4 A measured result diagram of an antenna of the present disclosure is shown in the following figure. DETAILED DESCRIPTION
[0029] In order to make the objectives, features and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person skilled in the art without creative work fall within the protection scope of the present disclosure.
[0030] An antenna is provided by an embodiment of the present disclosure, Figure 1 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure is shown in the following figure, Figure 2 A structural schematic diagram of an isolation structure provided by an embodiment of the present disclosure is shown in the following figure, as Figure 1 and Figure 2 The antenna comprises:
[0031] a circuit board 1;
[0032] an antenna unit arranged on the circuit board 1, the antenna unit comprising a first antenna 21 and a second antenna 22 arranged adjacently;
[0033] an isolation unit arranged on one end of the first antenna 21 close to the second antenna 22, the isolation unit comprising a first isolation branch 31 and a second isolation branch 32, the first isolation branch 31 and the second isolation branch 32 being formed into a three-dimensional isolation structure together to isolate the first antenna 21 and the second antenna 22.
[0034] In an embodiment, the circuit board is a PCB board.
[0035] In an embodiment, the isolation unit arranged on one end of the first antenna 21 close to the second antenna 22 comprises:
[0036] The first antenna 21 comprises a first feeding line 211, and the isolation unit is arranged on the first feeding line 211.
[0037] The first antenna 21 further comprises a first grounding portion 212 connected with the first feeding line 211.
[0038] As shown in Figure 2 , the antenna further comprises a first support 4, and the first isolation branch 31 is arranged on a side of the first support 4 away from the circuit board 1.
[0039] The second isolation branch 32 wraps all surfaces of the first support 4 except the side away from the circuit board 1.
[0040] Specifically, as shown in Figure 2 , the first support 4 has a right-angled trapezoidal structure, the first isolation branch 31 is arranged on one of the right-angled sides of the first support 4, and the first isolation branch 31 only covers part of the right-angled side, and the second isolation branch 32 wraps the other three sides of the first support 4. The first isolation branch 31 and the second isolation branch 32 form a three-dimensional isolation structure, which can effectively improve the isolation between the two antennas.
[0041] In an embodiment, as shown in Figure 2 , one end of the first isolation branch 31 and the second isolation branch 32 is connected, and the other end is not connected, so as to form a semi-closed isolation structure.
[0042] In an embodiment, the length of the first isolation branch 31 ranges from 5 to 8 mm, the width ranges from 1 to 2 mm, and the thickness ranges from 0.02 to 0.03 mm.
[0043] The length of the second isolation branch 32 ranges from 20 to 25 mm, the width ranges from 0.3 to 0.8 mm, and the thickness ranges from 0.04 to 0.06 mm.
[0044] In an embodiment, the material of the first isolation branch 31 comprises copper foil.
[0045] In an embodiment, the second isolation branch 32 comprises a two-layer structure, the material of the inner layer structure comprises plastic, and the outer layer structure is sputtered metal paint.
[0046] In an embodiment, the first isolation branch 31 has negative electrons, and the second isolation branch 32 has positive electrons, so as to isolate the mutual coupling between the first antenna and the second antenna.
[0047] Specifically, the first isolation branch 31 has negative electrons, and the second isolation branch 32 will couple to form induced positive electrons, so that the positive and negative electrons will form an electromagnetic field, which is located between the first antenna 21 and the second antenna 22, and will partially block the mutual coupling between the two antennas.
[0048] Figure 3 The measured results of the antenna without the isolation unit of the present disclosure are shown in the following figure,Figure 4 The measured result graph of the antenna of the present disclosure.
[0049] As shown in Figure 3 and Figure 4 Without the isolation unit of the present disclosure, the antenna can be seen that the isolation decreases by 8dB at 2.4G frequency band, and the isolation also decreases by 2dB at 5G frequency band, while in the antenna of the present disclosure, the isolation is obviously improved.
[0050] The embodiments of the present disclosure also provide an electronic device comprising the antenna as described in any of the above embodiments.
[0051] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present disclosure can be executed in parallel, sequentially or in different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, which is not limited herein.
[0052] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0053] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims
1. An antenna applied to an electronic device, characterized by, The antenna comprises: a circuit board; an antenna unit disposed on the circuit board, the antenna unit comprising a first antenna and a second antenna disposed adjacently; an isolation unit disposed on one end of the first antenna close to the second antenna, the isolation unit comprising a first isolation branch and a second isolation branch, the first isolation branch and the second isolation branch being formed together into a three-dimensional isolation structure to isolate the first antenna and the second antenna.
2. The antenna according to claim 1, wherein the isolation unit disposed on one end of the first antenna close to the second antenna comprises: the first antenna comprises a first feeding line, and the isolation unit is disposed on the first feeding line.
3. The antenna according to claim 1, wherein, Further comprising: a first support, the first isolation branch being disposed on a side of the first support away from the circuit board; the second isolation branch wrapping all surfaces of the first support except the side away from the circuit board.
4. The antenna according to claim 1, wherein one end of the first isolation branch and the second isolation branch is connected, and the other end is not connected, so that the isolation unit is formed into a semi-closed isolation structure.
5. The antenna according to claim 1, wherein the length of the first isolation branch ranges from 5 to 8 mm, the width ranges from 1 to 2 mm, and the thickness ranges from 0.02 to 0.03 mm.
6. The antenna according to claim 1, wherein the length of the second isolation branch ranges from 20 to 25 mm, the width ranges from 0.3 to 0.8 mm, and the thickness ranges from 0.04 to 0.06 mm.
7. The antenna according to claim 1, wherein the material of the first isolation branch comprises copper foil.
8. The antenna according to claim 1, wherein the second isolation branch comprises a two-layer structure, the material of the inner layer structure comprises plastic, and the outer layer structure is sputtered metal paint.
9. The antenna according to claim 1, wherein the first isolation branch carries negative electrons, and the second isolation branch carries positive electrons, so as to isolate the mutual coupling between the first antenna and the second antenna.
10. An electronic device, comprising: An antenna as claimed in any one of claims 1 to 9.