CN215451754U - Antenna and electronic device - Google Patents

Abstract

The embodiment of the application provides an antenna and electronic equipment, the antenna specifically includes: a first radiation unit and a second radiation unit; wherein the radiation frequency of the first radiation unit is higher than the radiation frequency of the second radiation unit; the first radiation unit stack is arranged on the top of the second radiation unit; the part of the first radiation unit and the part of the second radiation unit follow the left-hand principle when radiating electromagnetic waves, and the other part of the first radiation unit and the other part of the second radiation unit follow the right-hand principle when radiating electromagnetic waves. In the embodiment of the application, the antenna has the characteristics of high frequency ratio and low profile, is easy to be conformal with a carrier, and can realize the characteristic of omnidirectional vertical polarization radiation.

Description

Antenna and electronic device

Technical Field

The application belongs to the technical field of antennas, and particularly relates to an antenna and electronic equipment.

Background

With the development of wireless communication technology, the application of the antenna is more and more extensive, and more application scenes require that the antenna has the characteristics of high frequency ratio and omnidirectional vertical polarization radiation. For example, in application scenarios such as drone communication and mutual communication of wearable devices, the antenna is generally required to have characteristics of high frequency ratio and omnidirectional vertically polarized radiation.

In the prior art, dual-frequency monopole or dipole is usually used to achieve high frequency ratio and omnidirectional vertical polarization radiation of the antenna. However, the technical solution of using a monopole or a dipole can make the overall height of the antenna higher, and moreover, the requirement for the clearance of the antenna is high, and it is not easy to achieve the conformal property of the antenna and the carrier (electronic devices such as an unmanned aerial vehicle and a wearable device).

SUMMERY OF THE UTILITY MODEL

The application aims to provide an antenna and an electronic device, and solves the problem that the conventional antenna is not easy to realize the conformal carrier.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides an antenna, where the antenna includes: a first radiation unit and a second radiation unit; wherein,

the radiation frequency of the first radiation unit is higher than that of the second radiation unit;

the first radiation unit stack is arranged on the top of the second radiation unit;

the part of the first radiation unit and the part of the second radiation unit follow the left-hand principle when radiating electromagnetic waves, and the other part of the first radiation unit and the other part of the second radiation unit follow the right-hand principle when radiating electromagnetic waves.

Optionally, the radiation mode of the first radiation unit is a 0-order mode, and the radiation mode of the second radiation unit is a differential mode.

Optionally, an elongated groove is disposed on the second radiation unit, and the groove is used to increase a current path on the second radiation unit so as to excite the radiation mode of the second radiation unit into the differential mode.

Optionally, the area of the first radiation unit is smaller than that of the second radiation unit, and a vertical projection of the first radiation unit on the second radiation unit is a first projection;

the groove is arranged in a region of the second radiation unit outside the first projection.

Optionally, the first radiation unit and the second radiation unit are both rectangular in shape, and the first radiation unit is disposed in a central region of the second radiation unit;

the two grooves are arranged in the area between the long edge of the first radiation unit and the long edge of the second radiation unit and are symmetrical relative to the first radiation unit.

Optionally, the second radiating element is further provided with a transmission line, and the transmission lines are respectively connected with the two grooves.

Optionally, the transmission line is a saw tooth groove.

Optionally, the first radiating element comprises a first radiating element body and a first electrical connector;

a first through hole is formed in the first radiating unit body, and the first electric connecting piece is embedded in the first through hole and is grounded;

the first radiation unit body follows a right-hand principle when radiating electromagnetic waves, and the first electric connector follows a left-hand principle when radiating electromagnetic waves.

Optionally, the first electrical connector is electrically connected to a top of the second radiating element to realize grounding of the first electrical connector.

Optionally, the second radiating element comprises a second radiating element body and a second electrical connector;

a second through hole is formed in the second radiating unit body, and the second electric connecting piece is embedded in the second through hole and is grounded;

the second radiation unit body follows a right-hand principle when radiating electromagnetic waves, and the second electric connector follows a left-hand principle when radiating electromagnetic waves.

Optionally, the antenna further comprises: a third radiation unit; wherein,

the third radiation unit is connected to one side, far away from the first radiation unit, of the second radiation unit, and the third radiation unit is coupled with the second radiation unit.

Optionally, the antenna further comprises: a coaxial joint; wherein,

the coaxial connectors are electrically connected with the first radiating element and the second radiating element respectively so as to electrically connect the first radiating element and the second radiating element to a carrier device.

In a second aspect, an embodiment of the present application provides an electronic device, including: a carrier device and an antenna as claimed in any one of the above; wherein,

the antenna is electrically connected to the carrier device.

In the embodiment of the application, the first radiation unit with higher radiation frequency is stacked on the top of the second radiation unit with lower radiation frequency, so that the antenna can obtain higher radiation frequency ratio through smaller size, and the antenna has the characteristics of high frequency ratio and low profile and is easy to conform to a carrier. Moreover, since the part of the first radiation element and the part of the second radiation element are in the left-hand principle when radiating electromagnetic waves, and the other part of the first radiation element and the other part of the second radiation element are in the right-hand principle when radiating electromagnetic waves, the antenna can realize the characteristic of omnidirectional vertical polarization radiation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic top view of an antenna according to an embodiment of the present application;

fig. 2 is a schematic cross-sectional view of the antenna shown in fig. 1;

FIG. 3 is an exploded view of the antenna shown in FIG. 1;

fig. 4 is a schematic diagram of another exploded structure of an antenna according to an embodiment of the present application;

fig. 5 is a schematic current path diagram of a second radiation module according to an embodiment of the present application;

fig. 6 is a schematic current path diagram of a first radiation module according to an embodiment of the present application;

reference numerals: 10-a first radiating element, 101-a first radiating element body, 102-a first electrical connector, 103-a first through hole, 104-a first dielectric layer, 105-a first wiring layer, 11-a second radiating element, 111-a second radiating element body, 112-a second electrical connector, 113 a second through hole, 114-a second dielectric layer, 115-a second wiring layer, 116-a ground layer, and 12-a coaxial connector.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a schematic top-view structure of an antenna according to an embodiment of the present application is shown, referring to fig. 2, a schematic cross-sectional structure of the antenna shown in fig. 1 is shown, and referring to fig. 3, an exploded-structure schematic diagram of the antenna shown in fig. 1 is shown. Specifically, the antenna may specifically include: a first radiation unit 10 and a second radiation unit 11; wherein, the radiation frequency of the first radiation unit 10 is higher than that of the second radiation unit 11; the first radiation unit 10 is stacked on top of the second radiation unit 11; a portion of the first radiation element 10 and a portion of the second radiation element 10 follow the right-hand principle when radiating electromagnetic waves, and another portion of the first radiation element 10 and another portion of the second radiation element 10 follow the right-hand principle when radiating electromagnetic waves.

In the embodiment of the present application, the first radiation unit 10 with a higher radiation frequency is stacked on top of the second radiation unit 11 with a lower radiation frequency, which is beneficial for the antenna to obtain a higher radiation frequency ratio through a smaller size, so that the antenna has the characteristics of a high frequency ratio and a low profile and is easy to conform to a carrier. Moreover, since a portion of the first radiation element 10 and a portion of the second radiation element 11 follow the left-hand principle when radiating electromagnetic waves, and another portion of the first radiation element 10 and another portion of the second radiation element 11 follow the right-hand principle when radiating electromagnetic waves, the antenna can be made to realize the characteristic of omnidirectional vertical polarization radiation.

Specifically, the radiation frequency of the first radiation unit 10 may be about 5.8GHz, the radiation frequency of the second radiation unit 11 may be about 2.4GHz, the radiation frequency of the first radiation unit 10 is higher than the radiation frequency of the second radiation unit 11, and the radiation frequency ratio of the first radiation unit 10 to the second radiation unit 11 is greater than 2. Since the first radiation element 10 is stacked on the second radiation element 11, the volume of the antenna can be small, and thus, the antenna can be characterized by a high frequency ratio and a low profile and can be easily conformed to a carrier.

For example, the carrier may be a device on which the antenna is mounted, for example, the carrier may be an electronic device such as a drone and a wearable device, and the specific content of the carrier may not be limited in the embodiments of the present application.

In addition, in the embodiment of the present application, when the first radiation unit 10 and the second radiation unit 11 radiate electromagnetic waves, a part of the first radiation unit 10 and the second radiation unit 11 comply with the left-hand principle, and another part of the first radiation unit 10 and the second radiation unit 11 comply with the right-hand principle, that is, the first radiation unit 10 and the second radiation unit 11 can comply with the radiation characteristics of a left-hand and right-hand composite material, so that omnidirectional vertical polarization radiation is realized, and the antenna exhibits better radiation performance.

In an alternative embodiment of the present application, since the first radiation unit 10 may conform to the radiation characteristics of the left-right hand composite material, the radiation pattern of the first radiation unit 10 may be a 0-order pattern to achieve miniaturization and low profile characteristics of the first radiation unit 10.

Optionally, the first radiating element 10 may include a first radiating element body 101 and a first electrical connector 102; a first through hole 103 is formed in the first radiating element body 101, and the first electric connector 102 is embedded in the first through hole 103 and is grounded; the first radiation unit body 101 follows the right-hand principle when radiating electromagnetic waves, and the first electrical connector 102 follows the left-hand principle when radiating electromagnetic waves.

Specifically, the first radiation unit body 101 may be made of a conventional right-handed material, such as copper or a copper alloy, silver or a silver alloy, etc., so that the first radiation unit body 101 can follow the right-handed radiation principle when radiating electromagnetic waves. By arranging the first through hole 103 on the first radiation unit body 101 and embedding the first electrical connector 102 in the first through hole 103, the first electrical connector 102 can act as a parallel inductor, and when electromagnetic waves are radiated, the first electrical connector 102 can follow the left-hand radiation principle and is 'not propagated' at a certain frequency point, so that the characteristic of 'infinite' wavelength is represented. That is, portions of the first radiating element body 101 may exhibit left-handed material characteristics and the first electrical connection member 103 may exhibit right-handed material characteristics, so that the first radiating element 10 may conform to the radiation characteristics of a left-handed and right-handed composite material,

in some optional embodiments of the present application, the radiation pattern of the second radiation unit 11 may be a differential pattern, so that the second radiation unit 11 may change the external current into a smaller current after the external current is input until the external current is converted into an electrical signal to be recognized by an instrument, and thus, the area of the second radiation unit 11 may be effectively reduced, so that the ratio of the horizontal and vertical dimensions of the second radiation unit 11 to the first radiation unit 10 is smaller than the operating frequency ratio.

For example, in the case where the first radiation unit 10 and the second radiation unit 11 are both rectangular, and the second radiation unit 12 performs radiation in the differential mode, the ratio of the radiation frequencies of the first radiation unit 10 and the second radiation unit 11 may be greater than 2.4, and the ratio of the side length of the second radiation unit 11 to the side length of the first radiation unit 10 may be less than 2.4. In practical application, by adjusting the sizes of the first radiation unit 10 and the second radiation unit 11, the radiation frequencies of the first radiation unit 10 and the second radiation unit 11 are relatively different, but the plane sizes are relatively close to each other, so that the antenna has ideal omni-directionality when operating at different frequencies.

Alternatively, the second radiating element 11 may include a second radiating element body 111 and a second electrical connector 112; a second through hole 113 is formed in the second radiating element body 111, and the second electric connector 112 is embedded in the second through hole 113 and is grounded; the second radiation unit body 111 follows the right-hand principle when radiating electromagnetic waves, and the second electrical connector 112 follows the left-hand principle when radiating electromagnetic waves.

Specifically, the second radiation unit body 111 may be made of a conventional right-handed material, such as copper or a copper alloy, silver or a silver alloy, etc., so that the second radiation unit body 111 can follow the right-handed radiation principle when radiating electromagnetic waves. By providing the second through hole 113 on the second radiating element body 111 and embedding the second electrical connector 112 in the second through hole 113, the second electrical connector 112 can function as an inductor connected in parallel, and when electromagnetic waves are radiated, the second electrical connector 112 can follow the left-hand radiation principle. That is, a portion of the second radiating element body 111 may exhibit the characteristics of a left-handed material, and the second electrical connection member 113 may exhibit the characteristics of a right-handed material, so that the second radiating element 11 may conform to the radiation characteristics of a left-handed and right-handed composite material.

In practical applications, the second radiation unit 11 can be used as a ground of the first radiation unit 10, because the area of the second radiation unit 11 is larger than that of the first radiation unit 10, and the radiation frequency of the second radiation unit 11 is smaller than that of the first radiation unit 10. In the embodiment of the present application, the first electrical connector 102 may be electrically connected to the top of the second radiating element 11 to implement grounding of the first electrical connector 102, so that the first radiating element 10 forms a complete radiating loop, which is favorable for obtaining a compact antenna.

In practical applications, the first electrical connector 102 and the second electrical connector 112 may be pins, conductive columns, or conductive wires, and the like, and the specific form of the first electrical connector 102 and the second electrical connector 112 may not be limited in the embodiments of the present application.

Referring to fig. 4, which shows another exploded structure diagram of the antenna according to the embodiment of the present invention, as shown in fig. 4, the first radiating element 10 may include a first dielectric layer 104 and a first routing layer 105, the first dielectric layer 104 may serve as a supporting structure of the first radiating element 10, and the first routing layer 105 may be disposed on top of the first dielectric layer 104 for disposing a radiating circuit. The second radiating element 11 may include a second dielectric layer 114, a second routing layer 115 and a ground layer 116, the second dielectric layer 114 may serve as a supporting structure for the second radiating element 11, the second routing layer 115 may be disposed on top of the second dielectric layer 114 for arranging a radiating circuit, and the ground layer 116 may serve as a ground for the second radiating element 11.

In practical applications, the first electrical connector 102 may be electrically connected to the first routing layer 104 and the second routing layer 114 respectively to achieve grounding of the first radiating element 10, and the second electrical connector 112 may be electrically connected to the second routing layer 114 and the ground layer 116 respectively to achieve grounding of the second radiating element 11.

In some alternative embodiments of the present application, the second radiation element 11 is provided with an elongated groove 117, and the groove 117 may be used to increase a current path on the second radiation element 11 to excite the radiation mode of the second radiation element 11 into the differential mode.

Referring to fig. 5, a schematic current path diagram of a second radiation module according to an embodiment of the present invention is shown, as shown in fig. 5, since the groove 117 can cut a current on the second radiation unit 11, after an external current of the second radiation unit 11 is input, the external current needs to bypass the groove 117 for transmission, so that the current path on the second radiation unit 11 can be greatly increased (as shown by an arrow in fig. 5), a radiation mode of the second radiation unit 11 is excited into a differential mode, an area of the second radiation unit 11 is effectively reduced, and a ratio of a horizontal dimension to a vertical dimension of the second radiation unit 11 to that of the first radiation unit 10 is smaller than a ratio of an operating frequency.

In the embodiment of the present application, the area of the first radiation unit 10 may be smaller than the area of the second radiation unit 11, and a vertical projection of the first radiation unit 10 on the second radiation unit 11 is a first projection; the notch 117 is arranged in an area of the second radiation element 11 outside the first projection, i.e. the notch 117 is arranged to avoid the first radiation element 10. In this way, not only the arrangement of the groove 117 on the second radiation element 11 is facilitated, but also the radiation currents of the first radiation element 10 and the second radiation element 11 can be prevented from interfering with each other.

Referring to fig. 6, a schematic current path diagram of a first radiation module according to an embodiment of the present application is shown, and as shown in fig. 6, since the first electrical connector 102 on the first radiation module 10 can implement forced grounding, a current path (as shown by an arrow in fig. 6) on the first radiation module 10 is short, which facilitates radiation of high-frequency electromagnetic waves by the first radiation module 10.

Alternatively, the first radiation unit 10 and the second radiation unit 11 may be both rectangular in shape, and the first radiation unit 10 is disposed in a central region of the second radiation unit 11; one groove 117 is respectively arranged in the region between the long side of the first radiation unit 10 and the long side of the second radiation unit 11, and the two grooves 117 are symmetrical with respect to the first radiation unit 10, so that not only is the current path on the second radiation unit 11 further increased, the radiation mode of the second radiation unit 11 is excited to the differential mode, and the miniaturization of the second radiation unit 11 is realized, but also the current path on the second radiation unit 11 is correspondingly symmetrical with respect to the first radiation unit 10 by symmetrically arranging the two grooves 117 with respect to the first radiation unit 10, and the radiation uniformity of the second radiation unit 11 is realized.

In an optional embodiment of the present application, the second radiating element 11 is further provided with a transmission line, and the transmission line is respectively connected to the two grooves 117, so as to further realize the increase of the current path of the second radiating element 11, realize dual-band radiation, further reduce the area of the second radiating element 11, and facilitate the miniaturization of the antenna.

For example, the transmission line may be a conductive wire capable of implementing signal transmission, such as an electronic wire, a coaxial wire, or the like, or may also be a circuit or a groove disposed on the second routing layer 114, and the specific content of the transmission line in this embodiment of the application may not be limited.

In some alternative embodiments of the present application, the transmission line may be a saw-tooth groove to further increase the current path of the second radiating element 11. In practical applications, the two grooves 17 may be processed simultaneously, and the sawtooth-shaped groove may be correspondingly processed between the two grooves 117, so as to improve the processing efficiency.

In other optional embodiments of the present application, the antenna may further include: a third radiation unit (not shown in the figure); the third radiating element is connected to one side of the second radiating element 11 far away from the first radiating element 10, and the third radiating element can be coupled with the second radiating element 11 to widen the bandwidth of the antenna, so that multi-frequency omnidirectional radiation is realized, and the function of the antenna is further enriched.

It should be noted that, in the embodiment of the present application, only a case that only one third radiation unit is added outside the first radiation unit 10 and the second radiation unit 11, and the third radiation unit is coupled with the second radiation unit 11 is shown, but in practical applications, a person skilled in the art may also add a plurality of third radiation units outside the first radiation unit 10 and the second radiation unit 11 according to actual needs, and a coupling manner between different radiation units may also be set according to actual situations, which is not limited in the embodiment of the present application.

In this embodiment, the antenna may further include: a coaxial joint 12; the coaxial connector 12 is electrically connected to the first radiation unit 10 and the second radiation unit 11, respectively, so as to electrically connect the first radiation unit 10 and the second radiation unit 11 to the carrier device, thereby implementing data exchange between the antenna and the carrier device.

By way of example, the carrier device may include, but is not limited to, an electronic device such as a drone, a wearable device, and the like, and the specific content of the carrier device may not be limited in this application embodiment.

In summary, the antenna according to the embodiment of the present application may include at least the following advantages:

in the embodiment of the application, the first radiation unit with higher radiation frequency is stacked on the top of the second radiation unit with lower radiation frequency, so that the antenna can obtain higher radiation frequency ratio through smaller size, and the antenna has the characteristics of high frequency ratio and low profile and is easy to conform to a carrier. Moreover, since the part of the first radiation element and the part of the second radiation element are in the left-hand principle when radiating electromagnetic waves, and the other part of the first radiation element and the other part of the second radiation element are in the right-hand principle when radiating electromagnetic waves, the antenna can realize the characteristic of omnidirectional vertical polarization radiation.

An embodiment of the present application further provides an electronic device, where the electronic device specifically includes: a carrier device and the antenna; wherein the antenna is electrically connected to the carrier device.

It should be noted that, in the embodiment of the present application, the specific structure of the antenna is the same as that of the antenna in the foregoing embodiments, and the beneficial effects thereof are also similar, which are not described herein again.

For example, the carrier device may be an electronic device such as an unmanned aerial vehicle and a wearable device, and specific content of the carrier device may not be limited in this embodiment of the application.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. An antenna, characterized in that the antenna comprises: a first radiation unit and a second radiation unit; wherein,

the radiation frequency of the first radiation unit is higher than that of the second radiation unit;

the first radiation unit stack is arranged on the top of the second radiation unit;

the part of the first radiation unit and the part of the second radiation unit follow the left-hand principle when radiating electromagnetic waves, and the other part of the first radiation unit and the other part of the second radiation unit follow the right-hand principle when radiating electromagnetic waves.

2. The antenna of claim 1, wherein the radiation pattern of the first radiation element is a 0-order pattern, and the radiation pattern of the second radiation element is a differential pattern.

3. The antenna of claim 2, wherein the second radiating element is provided with an elongated slot, the slot configured to increase a current path on the second radiating element to excite the radiation mode of the second radiating element into the differential mode.

4. The antenna of claim 3, wherein the area of the first radiation element is smaller than the area of the second radiation element, and the vertical projection of the first radiation element on the second radiation element is a first projection;

the groove is arranged in a region of the second radiation unit outside the first projection.

5. The antenna of claim 4, wherein the first radiating element and the second radiating element are both rectangular in shape, and the first radiating element is disposed in a central region of the second radiating element;

the two grooves are arranged in the area between the long edge of the first radiation unit and the long edge of the second radiation unit and are symmetrical relative to the first radiation unit.

6. The antenna according to claim 5, wherein the second radiating element is further provided with transmission lines connected to the two grooves, respectively.

7. The antenna of claim 6, wherein the transmission line is a saw tooth groove.

8. The antenna of claim 1, wherein the first radiating element comprises a first radiating element body and a first electrical connection;

a first through hole is formed in the first radiating unit body, and the first electric connecting piece is embedded in the first through hole and is grounded;

the first radiation unit body follows a right-hand principle when radiating electromagnetic waves, and the first electric connector follows a left-hand principle when radiating electromagnetic waves.

9. The antenna of claim 8, wherein the first electrical connection is electrically connected to a top portion of the second radiating element to enable grounding of the first electrical connection.

10. The antenna of claim 1, wherein the second radiating element comprises a second radiating element body and a second electrical connection;

a second through hole is formed in the second radiating unit body, and the second electric connecting piece is embedded in the second through hole and is grounded;

the second radiation unit body follows a right-hand principle when radiating electromagnetic waves, and the second electric connector follows a left-hand principle when radiating electromagnetic waves.

11. The antenna of claim 1, further comprising: a third radiation unit; wherein,

the third radiation unit is connected to one side, far away from the first radiation unit, of the second radiation unit, and the third radiation unit is coupled with the second radiation unit.

12. The antenna of any one of claims 1 to 11, further comprising: a coaxial joint; wherein,

the coaxial connectors are electrically connected with the first radiating element and the second radiating element respectively so as to electrically connect the first radiating element and the second radiating element to a carrier device.

13. An electronic device, comprising: a carrier device and an antenna as claimed in any one of claims 1 to 12; wherein,

the antenna is electrically connected to the carrier device.

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