CN112467338B - Electronic equipment - Google Patents
Electronic equipment Download PDFInfo
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- CN112467338B CN112467338B CN202011295322.5A CN202011295322A CN112467338B CN 112467338 B CN112467338 B CN 112467338B CN 202011295322 A CN202011295322 A CN 202011295322A CN 112467338 B CN112467338 B CN 112467338B
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- antenna
- metal arm
- feed point
- electronic device
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- 239000002184 metal Substances 0.000 claims abstract description 62
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 16
- 230000000191 radiation effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- Support Of Aerials (AREA)
Abstract
The application discloses electronic equipment, and belongs to the technical field of electronic products. An electronic device includes: the outer frame comprises a first metal arm and a second metal arm, the first metal arm and the second metal arm are respectively formed on two opposite sides of the outer frame, the first metal arm comprises a first feed point, and the second metal arm comprises a second feed point; the first feed source is electrically connected with the first feed point to form a first antenna; the second feed source is electrically connected with the second feed point to form a second antenna; the working frequency band of the first antenna is the same as the working frequency band of the second antenna. The scheme provided by the embodiment of the application at least can solve the problem that the radiation effect of the antenna is easy to be poor in the process of using the electronic equipment by a user.
Description
Technical Field
The present disclosure relates to electronic devices, and particularly to an electronic device.
Background
In the prior art, a metal frame of an electronic device is generally used as a radiator of an antenna. However, in the process of using the electronic device by the user, the electronic device is generally required to be held, and when the holding position of the user is the position where the radiator is located, the radiation effect of the antenna may be deteriorated due to the shielding of the hand of the user. It can be seen that the problem of poor radiation effect of the antenna is easily caused during the use of the electronic device by the user.
Disclosure of Invention
The embodiment of the application provides electronic equipment, which aims to solve the problem that the radiation effect of an antenna is easy to be poor in the process of using the electronic equipment by a user.
In order to solve the technical problems, the application is realized as follows:
the embodiment of the application provides electronic equipment, which comprises:
the outer frame comprises a first metal arm and a second metal arm, the first metal arm and the second metal arm are respectively formed on two opposite sides of the outer frame, the first metal arm comprises a first feed point, and the second metal arm comprises a second feed point;
the first feed source is electrically connected with the first feed point to form a first antenna;
the second feed source is electrically connected with the second feed point to form a second antenna;
the working frequency band of the first antenna is the same as the working frequency band of the second antenna.
In the embodiment of the application, the first antenna and the second antenna are respectively arranged on the two opposite sides of the outer frame of the electronic equipment, and the working frequency bands of the first antenna and the second antenna are the same, so that when a user holds the electronic equipment, and the radiation effect of one side of the electronic equipment is poor, the other side of the electronic equipment can be irradiated through the other side of the electronic equipment, thereby ensuring that the electronic equipment has good radiation effect in the use process.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a first tuning circuit according to an embodiment of the present application;
FIG. 3 is a second schematic diagram of a first tuning circuit according to an embodiment of the application;
fig. 4 is a graph comparing the antenna performance of the electronic device in the prior art with the antenna performance of the electronic device provided by the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The electronic device provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides an electronic device, including:
an outer frame 100, wherein the outer frame 100 comprises a first metal arm 101 and a second metal arm 102, the first metal arm 101 and the second metal arm 102 are respectively formed on two opposite sides of the outer frame 100, the first metal arm 101 comprises a first feed point, and the second metal arm 102 comprises a second feed point;
a first feed 200, the first feed 200 being electrically connected to the first feed point to form a first antenna;
a second feed 300, the second feed 300 being electrically connected to the second feed point to form a second antenna;
the working frequency band of the first antenna is the same as the working frequency band of the second antenna.
Specifically, the first metal arm 101 and the second metal arm 102 being formed on two opposite sides of the outer frame 100 respectively may refer to two sides of the electronic device in the state shown in fig. 1, that is, the first metal arm 101 and the second metal arm 102 are formed on two opposite sides of the electronic device in the width direction respectively. The first metal arm 101 and the second metal arm 102 are disposed opposite to each other, and in addition, the first metal arm 101 and the second metal arm 102 may be disposed in a staggered manner.
Because the user usually holds one side of the electronic device with one hand in the process of using the electronic device, the radiation efficiency of the antenna on one side of the electronic device is usually reduced when the user holds the electronic device.
The operating frequency band of the first antenna and the operating frequency band of the second antenna may be the same as each other: the first antenna and the second antenna both handle low frequency bands, e.g., in one of the following bands: b5, B8 and B28, wherein B5 is 824MHz to 894MHz, B8 is 880MHz to 960MHz, and B28 is 803MHz to 803MHz. In addition, the first antenna and the second antenna may be in the intermediate frequency band at the same time, or in the high frequency band at the same time, or the like.
In this embodiment, the working frequency bands of the first antenna and the second antenna are 700MHz-960 MHz.
It should be noted that the electronic device may include a circuit board, and the first feed 200 and the second feed 300 may be formed on the circuit board, respectively.
In this embodiment, the first antenna and the second antenna are respectively disposed on two opposite sides of the outer frame 100 of the electronic device, and the working frequency bands of the first antenna and the second antenna are the same, so that when a user holds the electronic device and causes the radiation effect of one side of the electronic device to be poor, radiation can be performed through the antenna on the other side, thereby ensuring that the electronic device has a good radiation effect in the use process.
Optionally, the electronic device further includes:
a first matching circuit 400, wherein the first feed source 200 is electrically connected with the first feed point through the first matching circuit 400;
the first tuning circuit 500 is electrically connected to the first feed point and the first tuning circuit 500, so as to tune the working frequency band of the first antenna.
The first matching circuit 400 may be a common matching circuit formed by an inductor and a capacitor, for example, a matching circuit formed by connecting a capacitor in series or in parallel with an inductor.
The tuning circuit may include a plurality of tuning switches, so that the frequency band of the first antenna may be tuned by controlling the conducting states of the different tuning switches.
It should be noted that, tuning the operating frequency band of the first antenna by the above-mentioned first tuning circuit 500 refers to tuning the operating frequency band of the first antenna within the range of the operating frequency band of the first antenna, for example, when the operating frequency band of the first antenna is a low frequency band (700 MHz-960 MHz), the first tuning circuit 500 may tune the operating frequency band of the first antenna within the range of the low frequency band, for example, may switch the operating frequency band of the first antenna between B5, B8 and B28.
In this embodiment, the matching circuit is configured to cooperate with the tuning circuit to tune the operating frequency band of the first antenna.
Optionally, the first tuning circuit 500 includes N first switches and N first matching elements, where each of the N first switches is connected in series to one first matching element, and the N first matching elements are respectively electrically connected to the first feed point, where N is an integer greater than 1.
The first matching element may include at least one of a capacitor and an inductor, and the matching of at least one of the capacitor and the inductor of the first matching element connected in series with the N-way first switch may be different, so that tuning of different frequency bands of the first antenna may be achieved when the N-way first switch is controlled to be in different conducting states, that is, the N lines are controlled to be in different conducting states.
Referring to fig. 2, the N-way first switches in the first tuning circuit 500 may be represented as three-way first switches, and accordingly, the first tuning circuit 500 may include three first matching elements, and each of the three first switches is connected in series to one first matching element, where the first matching element is an inductor.
In this embodiment, in order to facilitate distinguishing the three first matching elements, please refer to fig. 2, the three first matching elements are numbered as L1, L2 and L3, respectively. Taking the operating frequency band of the first antenna as the low frequency band as an example, the tuning process of the first antenna by the first tuning circuit 500 is illustrated, for example, when L1 is turned on and L2 and L3 are turned off, the operating frequency band of the first antenna may be set to B5; when L2 is on and L1 and L3 are off, the working frequency band of the first antenna is B8; when L3 is on and L1 and L2 are off, the working frequency band of the first antenna is B28. Of course, it is also possible to set the working frequency band of the first antenna to B28 when only one of the first matching elements L1, L2 and L3 is turned on; when two first matching elements in L1, L2 and L3 are conducted, the working frequency band of the first antenna is B5; when all of L1, L2 and L3 are on, the operating band of the first antenna is B8.
In this embodiment, by controlling different on states of the N-way first switch, the purpose of channel expansion and multiplexing can be achieved, so that the number of tuning switches of the antenna can be reduced, the cost of antenna design and switching loss can be reduced, and simultaneously, tuning of different frequency bands of the first antenna can be achieved.
Optionally, the first tuning circuit 500 further includes a second matching element L4, a first end of the second matching element L4 is electrically connected to the first feed point, and a second end of the second matching element L4 is grounded.
Referring to fig. 2, the second matching element L4 is connected in parallel with the N-path first switches to form a parallel circuit. Wherein the second matching element L4 may represent a bypass inductance, it should be understood that the present application is not limited to the representation of the second matching element L4, and in other embodiments, the second matching element L4 may represent an element such as a bypass capacitance that can adjust the electrical length of the first metal arm 101.
In this embodiment, by providing the second matching element L4, the second matching element L4 may cooperate with the N first matching elements to tune the operating frequency band of the first antenna, for example, when the operating frequency band of the first antenna is a medium-high frequency, the medium-high frequency antenna may be tuned by the second matching element L4.
Alternatively, the first tuning circuit 500 may also take the form shown in fig. 3, and as shown in fig. 3, the first tuning circuit 500 includes four first switches, specifically, the first matching elements connected to two first switches are capacitors C1 and C2, and the first matching elements connected to the other two first switches are inductors L5 and L6. In this embodiment, the second matching element L7 described above is also provided. And the first matching circuit 400 is electrically connected to the first feed point through a first capacitor C3.
This embodiment differs from the above examples in that: the number of the first switches, the types of the first matching elements and the connection modes are different, but the specific implementation principle is similar to that of the embodiment, and particularly, the on-off states of the four first switches can be respectively controlled to realize tuning of the working frequency of the first antenna.
Optionally, the electronic device further includes:
a second matching circuit 600, wherein the second feed source 300 is electrically connected with the second feed point through the second matching circuit 600;
and the second tuning circuit 700 is electrically connected with the second feeding point and the second tuning circuit 700 so as to tune the working frequency band of the second antenna.
Optionally, the second tuning circuit 700 includes M second switches and M third matching elements, where each of the M second switches is connected in series to one third matching element, and the M third matching elements are respectively electrically connected to the second feed point, where M is an integer greater than 1, and M may be the same as N or, of course, may be different from N.
Optionally, the first tuning circuit 500 further includes a fourth matching element, a first end of which is electrically connected to the second feed point, and a second end of which is grounded.
Specifically, the structure of the second matching circuit 600 may be the same as that of the first matching circuit 400, and meanwhile, the structure of the second tuning circuit 700 may be the same as that of the first tuning circuit 500, where the implementation forms of the second matching circuit 600 and the second tuning circuit 700 are similar to those of the first matching circuit 400 and the second tuning circuit, and the same beneficial effects can be achieved, and the repetition is avoided.
Optionally, the outer frame 100 further includes a third metal arm, a first fracture 800 is formed between a first end of the third metal arm and a first end of the first metal arm 101, a second fracture 900 is formed between a second end of the third metal arm and a first end of the second metal arm 102, and the third metal includes a third feeding point (not shown in the figure), and the electronic device further includes:
and a third feed source (not shown in the figure), wherein the third feed point is electrically connected with the third feed source to form a third antenna, and the third antenna is different from the first antenna in working frequency band.
Referring to fig. 1, the outer frame 100 includes an upper frame body located at an upper half portion and a lower frame body located at a lower half portion, the upper frame body and the lower frame body are respectively in a U-shaped plate, a U-shaped opening of the upper frame body and a U-shaped opening of the lower frame body are oppositely arranged to form the outer frame 100, and the first fracture 800 and the second fracture 900 are formed between the upper frame body and the lower frame body. The first metal arms 101 are formed on opposite sides of the lower frame, and the third metal arms are formed on the upper frame.
The third feed may be formed on the circuit board. Referring to fig. 1, an end of the first metal arm 101 close to the first fracture 800 is a suspension end, an end of the first metal arm 101 far from the first fracture 800 is a ground end, and the ground of the first metal arm 101 is grounded. The end of the second metal arm 102 close to the second fracture 900 is a suspension end, the end of the second metal arm 102 far away from the second fracture 900 is a grounding end, and the grounding end of the second metal arm 102 is grounded. One end of the lower frame body, which is close to the first fracture 800, is grounded, and one end of the lower frame body, which is close to the second fracture 900, is grounded.
The widths of the first and second interruptions 800 and 900 may be the same, wherein the widths of the first and second interruptions 800 and 900 are greater than 1mm, respectively. Specifically, the width of the first and second interruptions 800 and 900 may be adjusted according to the thickness of the outer frame 100, for example, when the thickness of the outer frame 100 is greater, the widths of the first and second interruptions 800 and 900 are correspondingly increased.
The length of the first metal arm 101 and the second metal arm 102 may be in a range of 45mm to 50mm, where the lengths of the first metal arm 101 and the second metal arm 102 may be the same, for example, the lengths are all values of 48mm, 51mm, 45mm, etc. The distance between the first feed point and the free end of the first metal arm 101 may be 25mm to 35mm, for example, 300mm or 34mm. Accordingly, the distance between the second feed point and the free end of the second metal arm 102 may be 25mm to 35mm, for example, 300mm or 34mm.
In this embodiment, by dividing the outer frame 100 into the upper frame and the lower frame, different antennas can be arranged on the upper frame and the lower frame, respectively, thereby improving compactness of the arrangement of antennas in the outer frame 100.
Optionally, the working frequency band of the third antenna is a 5G communication frequency band, and the working frequency band of the first antenna is a 4G communication frequency band.
Specifically, with the advent of the 5G age, the number of antennas has been increased, resulting in an abnormally compact antenna layout space; the frequency of the 5G communication band is high, and the length of the radio frequency transmission line connected to the 5G antenna is a main factor affecting the loss. Since the main board rf port is generally close to the upper half of the casing 100, in order to avoid the length process of the rf transmission line connected to the 5G antenna, the 5G antenna may be disposed on the upper half of the casing 100, that is, the third antenna is used as the 5G antenna. Correspondingly, the third feed source is the main board radio frequency port. The first antenna and the second antenna may be 4G antennas.
In this embodiment, by disposing different antennas in the upper and lower housings, respectively, it is possible to dispose the 4G antenna and the 5G antenna simultaneously in the housing 100 of the electronic apparatus.
Referring to fig. 4, the embodiment of the present application performs verification on the antenna performance of the electronic device in three cases, where the first case is: only a first antenna is arranged on the left side of the outer frame 100, and the working frequency band of the first antenna is B8; the second case is: only a second antenna is arranged on the right side of the outer frame 100, and the working frequency band of the second antenna is B8; the third case is: the first antenna is arranged on the left side of the outer frame 100, the second antenna is arranged on the right side of the outer frame 100, and the working frequency bands of the first antenna and the second antenna are B8. The antenna performance in the electronic equipment with the three situations is tested under different scenes, wherein, scene one: in a free space state; scene II: holding the electronic equipment by the left hand and attaching the electronic equipment to the face in a conversation state; scene III: holding the electronic equipment by the right hand and attaching the electronic equipment to the face in a conversation state; scene four: holding the handle by a left hand; scene five: holding the handle by the right hand.
As can be seen from fig. 4, in comparison with the first case and the second case, the antenna performance of the third case is best in various situations, i.e., the electronic device provided by the embodiment of the application can ensure that the antenna has better antenna performance in different working states.
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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (9)
1. An electronic device, comprising:
the outer frame comprises a first metal arm and a second metal arm, the first metal arm and the second metal arm are respectively formed on two opposite sides of the outer frame, the first metal arm and the second metal arm are arranged in a staggered mode, the first metal arm comprises a first feed point, and the second metal arm comprises a second feed point;
the first feed source is electrically connected with the first feed point to form a first antenna;
the second feed source is electrically connected with the second feed point to form a second antenna;
the working frequency band of the first antenna is the same as that of the second antenna;
the electronic device further includes:
the first feed source is electrically connected with the first feed point through the first matching circuit;
the first feed point is electrically connected with the first tuning circuit so as to tune the working frequency band of the first antenna;
the first tuning circuit comprises four paths of first switches, and first ends of the four paths of first switches are respectively and electrically connected with the first feed point;
the second end of the first path of first switch is connected with the first end of the first capacitor, and the second end of the first capacitor is grounded;
the second end of the second path of the first switch is connected with the first end of the second capacitor, the second end of the second capacitor is connected with the first end of the third capacitor, the first end of the third capacitor is also connected with the first matching circuit, and the second end of the third capacitor is electrically connected with the first feed point;
the second end of each of the other two first switches is connected with the first end of an inductor, and the second end of each inductor is grounded;
the on-off states of the four-way first switch are used for determining a type combination of the first matching elements used by the first tuning circuit.
2. The electronic device of claim 1, wherein the first tuning circuit comprises N first switches and N first matching elements, each of the N first switches being connected in series with one first matching element, the N first matching elements being respectively electrically connected to the first feed point, wherein N is an integer greater than 1.
3. The electronic device of claim 2, wherein the first tuning circuit further comprises a second matching element, a first end of the second matching element being electrically connected to the first feed point, a second end of the second matching element being grounded.
4. The electronic device of any one of claims 1-3, wherein the electronic device further comprises:
the second feed source is electrically connected with the second feed point through the second matching circuit;
and the second tuning circuit is electrically connected with the second feed point so as to tune the working frequency band of the second antenna.
5. The electronic device of claim 4, wherein the second tuning circuit comprises M second switches and M third matching elements, each of the M second switches being connected in series with one third matching element, the M third matching elements being respectively electrically connected to the second feed point, wherein M is an integer greater than 1.
6. The electronic device of claim 5, wherein the first tuning circuit further comprises a fourth matching element, a first end of the fourth matching element being electrically connected to the second feed point, a second end of the fourth matching element being grounded.
7. The electronic device of claim 1, wherein the housing further comprises a third metal arm having a first break formed between a first end of the third metal arm and a first end of the first metal arm, a second break formed between a second end of the third metal arm and a first end of the second metal arm, the third metal comprising a third feed point, the electronic device further comprising:
and the third feed source is electrically connected with the third feed source to form a third antenna, wherein the working frequency band of the third antenna is different from that of the first antenna.
8. The electronic device of claim 7, wherein the third antenna operates in a 5G communication band and the first antenna operates in a 4G communication band.
9. The electronic device of claim 1, wherein the first antenna has an operating frequency range of 700MHz to 960MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011295322.5A CN112467338B (en) | 2020-11-18 | 2020-11-18 | Electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011295322.5A CN112467338B (en) | 2020-11-18 | 2020-11-18 | Electronic equipment |
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| CN112467338A CN112467338A (en) | 2021-03-09 |
| CN112467338B true CN112467338B (en) | 2023-12-01 |
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