CN215527939U - Signal isolation device, antenna and electronic equipment - Google Patents
Signal isolation device, antenna and electronic equipment Download PDFInfo
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- CN215527939U CN215527939U CN202121281964.XU CN202121281964U CN215527939U CN 215527939 U CN215527939 U CN 215527939U CN 202121281964 U CN202121281964 U CN 202121281964U CN 215527939 U CN215527939 U CN 215527939U
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Abstract
The utility model discloses a signal isolation device, an antenna and electronic equipment, wherein the signal isolation device is used for absorbing interference signals, the interference signals comprise signals which generate interference on antenna signals received or radiated by an antenna arranged in the electronic equipment, and the signal isolation device is arranged between the antenna and a control device of the electronic equipment and is close to the antenna; the signal isolation device is copper-clad with a set size, and the set size is determined according to the frequency of the antenna; and the signal isolation device has a common reference ground contact with the antenna. Therefore, the interference signal is effectively absorbed by using the simple signal isolation device while the structural design of the electronic product is not influenced, and the influence of the interference signal on the antenna is obviously reduced. The structure of the antenna and the electronic equipment is simplified, and the cost is effectively reduced.
Description
Technical Field
The present invention relates to the field of signal processing technologies, and in particular, to a signal isolation device, an antenna, and an electronic device.
Background
With the increase of the integration level of electronic products and the rapid increase of the speed of various chips. How to reduce the system interference (system interference) of the motherboard received by the antenna in the electronic product becomes an urgent problem to be solved in the design process of the electronic product.
At present, the mainboard end system noise received by the antenna is mainly reduced by methods of grounding, shielding, filtering and the like, but in the implementation process of the methods, the method brings great influence to the structural design of electronic products, is difficult to implement, and has poor interference reduction effect.
Disclosure of Invention
The embodiment of the utility model provides a signal isolation device, an antenna and electronic equipment.
According to a first aspect of the present invention, there is provided a signal isolation device for absorbing an interference signal, the interference signal including a signal that interferes with an antenna signal received or radiated by an antenna disposed in an electronic device, the signal isolation device being disposed between the antenna and a control device of the electronic device and near the antenna; the signal isolation device is copper-clad with a set size, and the set size is determined according to the frequency of the antenna; and the signal isolation device has a common reference ground contact with the antenna.
According to an embodiment of the present invention, the signal isolation device is disposed on the circuit board of the antenna.
According to an embodiment of the present invention, the signal isolation device and the antenna are both disposed on an inner wall of the housing of the electronic device.
According to an embodiment of the present invention, the predetermined size is 119 mm to 125 mm.
According to an embodiment of the present invention, the predetermined size is 500 mm to 667 mm or 5.7 mm to 12.4 mm.
According to an embodiment of the present invention, the set size is determined according to the following formula: λ ═ c/f, where λ is the total length of the copper cladding; c is the speed of light; f is the frequency of the signal received or radiated by the antenna.
According to an embodiment of the present invention, the shape of the copper plating is one of: s-type, T-type and inverted L-type.
According to the second aspect of the present invention, there is also provided an antenna comprising the above signal isolation device.
According to the third aspect of the present invention, there is also provided an electronic device, which includes the above signal isolation apparatus.
According to an embodiment of the present invention, the signal isolation device is disposed between the antenna and the control device of the electronic device and near the antenna.
The signal isolation device is used for absorbing interference signals, the interference signals comprise signals which generate interference on antenna signals received or radiated by an antenna arranged in the electronic equipment, and the signal isolation device is arranged between the antenna and a control device of the electronic equipment and is close to the antenna; and the signal isolation device has a common reference ground contact with the antenna. Therefore, the interference signal is effectively absorbed by using the simple signal isolation device while the structural design of the electronic product is not influenced, and the influence of the interference signal on the antenna is obviously reduced. The structure of the antenna and the electronic equipment is simplified, and the cost is effectively reduced.
It is to be understood that the teachings of the present invention need not achieve all of the above-described benefits, but rather that specific embodiments may achieve specific technical results, and that other embodiments of the present invention may achieve benefits not mentioned above.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the utility model are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Fig. 1 is a schematic view illustrating an application scenario of a signal isolation apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a signal isolation device according to an embodiment of the present invention;
fig. 3 shows a schematic diagram of a signal isolation device according to an embodiment of the present invention.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It is understood that these embodiments are given only to enable those skilled in the art to better understand and to implement the present invention, and do not limit the scope of the present invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The technical solution of the present invention is further elaborated below with reference to the drawings and the specific embodiments.
Fig. 1 is a schematic view illustrating an application scenario of a signal isolation apparatus according to an embodiment of the present invention.
The signal isolation device of the embodiment of the utility model can be applied to electronic equipment, such as: notebook computers, tablet computers, mobile phones and the like. In this embodiment of the present invention, a notebook computer is taken as an example to describe an application scenario of the signal isolation device, but it should be noted that the application scenario of the signal isolation device is described here as an example, and is not intended to limit the application of the signal isolation device of the present invention.
As shown in fig. 1, the antenna 102 of the notebook computer 10 is disposed at the upper left of the main board 101, the signal isolation device 103 is disposed on the antenna 102, the signal isolation device 103 is disposed at a position on the antenna 102 close to the main board 101, the signal isolation device 103 is a copper-clad device having a set size, the set size can be determined according to the frequency of the antenna 102, and the signal isolation device 103 and the antenna 102 have a common reference ground contact. The signal isolation device 103 is used for absorbing interference signals which interfere with the signals received and transmitted by the antenna 102.
Fig. 2 shows a schematic structural diagram of a signal isolation device according to an embodiment of the present invention.
The signal isolation device for absorbing the interference signal in this embodiment of the present invention is disposed between the antenna and the control device of the electronic device, and is close to the antenna, and the signal isolation device and the antenna have a common reference ground point. The interference signal includes a signal that interferes with an antenna signal received or radiated by an antenna provided in the electronic device.
Referring to fig. 2, the signal isolation device is disposed on the circuit board of the antenna, and the signal isolation device is copper-clad with a set size. The locations filled with diagonal lines in fig. 2 represent the copper cladding on the circuit board of the antenna.
In this embodiment of the utility model, the copper metallization has a shape of one of: s-type, T-type and inverted L-type. The position shown as 201 in fig. 2(a) represents an S-shaped signal isolation device, the position shown as 202 in fig. 2(b) represents an inverted T-shaped signal isolation device, and the position shown as 203 in fig. 2(c) represents an inverted L-shaped signal isolation device.
In this embodiment of the present invention, the set size is determined according to the frequency of the antenna. The set dimension refers to the total length of the S-shaped copper cladding, the total length of the T-shaped copper cladding or the total length of the inverted L-shaped copper cladding in figure 2.
In this embodiment of the present invention, the set size is determined according to the following formula (1):
λ＝c/f (1)
wherein λ is the total length of copper cladding;
c is the speed of light;
f is the frequency of the interference signal pre-isolated by the signal isolation device.
For example, the length of the signal isolation device is designed according to the frequency f commonly used in an electronic device being 2.4G, and the signal isolation device can generate a resonant frequency similar to the resonant frequency of the antenna. The interference signal received by the antenna is firstly radiated to the signal isolation device, the total energy radiated to the antenna is weakened, namely, the noise power is reduced, and the system noise received by the antenna is also reduced. Thereby, the antenna will be able to receive the useful signal well.
In this embodiment of the present invention, the signal isolation device can be used for an antenna receiving or radiating signals with a frequency of 2.4GHz to 2.527GHz, and the set size is 119 mm to 125 mm according to the above formula (1).
In this embodiment of the present invention, the signal isolation device may be used for an antenna receiving or radiating a signal with a frequency of 450MHz to 6000MHz or 24250MHz to 52600MHz, and the size is set to be 500 mm to 667 mm or 5.7 mm to 12.4 mm according to the above formula (1).
In this embodiment of the present invention, the signal isolation device and the antenna are both disposed on an inner wall of the housing of the electronic device.
Fig. 3 shows a schematic diagram of a signal isolation device according to an embodiment of the present invention.
Referring to fig. 3, the signal isolation device according to the embodiment of the present invention is equivalent to an LC oscillating circuit. The schematic diagram is shown in fig. 3, and it is assumed that the internal resistance of the antenna is RantAn equivalent inductance value of LantAn equivalent capacitance value of Cant. The equivalent circuit of the signal isolation device of the antenna is equivalent to that a resistor which is equal to the internal resistance value of the antenna is connected with an inductor in series and then is connected with a capacitance value which is equal to the equivalent capacitance value of the antenna in parallel. An LC tank circuit is formed which is capable of generating a resonant frequency similar to the frequency of the antenna.
The antenna is provided with the signal isolation device, the anti-interference capability of the antenna is obviously enhanced, and table 1 shows the efficiency comparison condition of the mainboard end after the antenna is provided with the signal isolation device and under the condition that the signal isolation device is not provided.
TABLE 1
As can be seen from the data in table 1, the anti-interference capability of the antenna configured with the signal isolation device is significantly higher than that of the antenna not configured with the signal isolation device.
It should be noted that the signal isolation device is substantially copper-clad on the circuit board of the antenna, and therefore, in the embodiment of the present invention, the signal isolation device is also referred to as an isolation stub. The simple description here is that the manufacturing process of the antenna in the embodiment of the present invention is: first, a main antenna and an auxiliary antenna of an antenna are tuned. And secondly, tuning the isolation branch between the main antenna and the auxiliary antenna. And thirdly, configuring and isolating the antenna directly at a position, which is close to the electronic equipment main control device, of the electronic equipment, and performing tuning operation, so as to reduce the system interference of the antenna. Finally, the efficiency of the antenna was tested.
The signal isolation device is used for absorbing interference signals, the interference signals comprise signals which interfere antenna signals received or radiated by an antenna arranged in the electronic equipment, the signal isolation device is arranged between the antenna and a control device of the electronic equipment and close to the antenna, the signal isolation device is copper-clad with a set size, the set size is determined according to the frequency of the antenna, and the signal isolation device and the antenna have a common reference ground contact point. Therefore, the interference signal is effectively absorbed by using the simple signal isolation device while the structural design of the electronic product is not influenced, and the influence of the interference signal on the antenna is obviously reduced. The structure of the antenna and the electronic equipment is simplified, and the cost is effectively reduced.
The embodiment of the utility model also provides an antenna which comprises the signal isolation device.
In this embodiment of the present invention, details of the antenna are described with reference to the signal isolation device, and are not described herein again.
The embodiment of the utility model also provides electronic equipment which comprises the signal isolation device.
According to an embodiment of the present invention, the signal isolation device is disposed between the antenna and the control device of the electronic device near the antenna.
In this embodiment of the present invention, details of the electronic device refer to the signal isolation apparatus, which are not described herein again.
Here, it should be noted that: the above description of the embodiments of the antenna and the electronic device is similar to the description of the embodiments of the method shown in fig. 1 to 3, and has similar beneficial effects to the embodiments of the signal isolation apparatus shown in fig. 1 to 3, and therefore, the description thereof is omitted. For technical details that are not disclosed in the embodiments of the antenna and the electronic device of the present invention, please refer to the description of the embodiments of the signal isolation apparatus shown in fig. 1 to 3 of the present invention for understanding, and therefore, for brevity, will not be described again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of a unit is only one logical function division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods of the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A signal isolation apparatus for absorbing an interference signal, the interference signal including a signal that interferes with an antenna signal received or radiated by an antenna disposed in an electronic device,
the signal isolation device is arranged between the antenna and the control device of the electronic equipment and close to the antenna;
the signal isolation device is copper-clad with a set size, and the set size is determined according to the frequency of the antenna; and is
The signal isolation device has a common reference ground contact with the antenna.
2. The signal isolation device of claim 1, wherein the signal isolation device is disposed on a circuit board of the antenna.
3. The signal isolation device of claim 1, wherein the signal isolation device and the antenna are both disposed on an inner wall of a housing of the electronic device.
4. The signal isolation device of claim 1, wherein the set size is 119 mm to 125 mm.
5. The signal isolation device of claim 1, wherein the predetermined size is 500-667 mm or 5.7-12.4 mm.
6. The signal isolation device of claim 1, wherein the set size is determined according to the following equation:
λ＝c/f
wherein λ is the total length of the copper cladding;
c is the speed of light;
f is the frequency at which the antenna receives or radiates a signal.
7. The signal isolation device of claim 1, wherein the copper cladding is in the shape of one of: s-type, T-type and inverted L-type.
8. An antenna, characterized in that it comprises a signal isolation device according to any one of claims 1-7.
9. An electronic device, characterized in that the electronic device comprises a signal isolation arrangement according to any one of claims 1-7.
10. The electronic device of claim 9, wherein the signal isolation device is disposed between the antenna and a control device of the electronic device proximate to the antenna.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121281964.XU CN215527939U (en) | 2021-06-08 | 2021-06-08 | Signal isolation device, antenna and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121281964.XU CN215527939U (en) | 2021-06-08 | 2021-06-08 | Signal isolation device, antenna and electronic equipment |
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| CN215527939U true CN215527939U (en) | 2022-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451773A (en) * | 2021-06-08 | 2021-09-28 | 合肥联宝信息技术有限公司 | Signal isolation device, antenna and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451773A (en) * | 2021-06-08 | 2021-09-28 | 合肥联宝信息技术有限公司 | Signal isolation device, antenna and electronic equipment |
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