CN211350946U - Electronic equipment - Google Patents

Abstract

The embodiment of the application discloses electronic equipment, includes: the metal rear cover comprises a body part and a side part which are connected in a bending mode, a first gap is formed between the side part and the body part to form a radiating body on the side part, the radiating body comprises a free end and a first grounding end, the free end is spaced from the body part, the first grounding end is connected with the body part, a circuit board is provided with a feed source, a first matching circuit and a second matching circuit, the feed source is connected with the radiating body through the first matching circuit, one end of the second matching circuit is connected with the radiating body, the other end of the second matching circuit is grounded, the feed source is used for providing a first excitation signal and a second excitation signal, the first excitation signal is fed into the radiating body through the first matching circuit and is grounded through the second matching circuit to excite the radiating body to resonate at a first frequency; the second excitation signal is fed into the radiator by the first matching circuit and grounded by the first ground terminal to excite the radiator to resonate in the second frequency band.

Description

Electronic equipment

Technical Field

The present application relates to a three-band antenna technology, and more particularly, to an electronic device.

Background

Currently, commonly used triple-band antennas in mobile terminals include: a Global Positioning System (GPS), a Global positioning system (L5) antenna, a 2.4G Wireless Fidelity (WIFI) antenna, and a 5G WIFI antenna, which are generally detached from a mobile terminal for placement, for example, a GPS-L5 single antenna, and a 2.4G WIFI +5G WIFI antenna are used as another antenna, that is, two antennas are used to realize a GPS-L5+2.4G WIFI +5G WIFI triple-frequency antenna.

However, with the advent of the fifth Generation Mobile communication technology (5G, 5th Generation Mobile Networks), the number of antennas is increasing, and the existing single-antenna solution occupies a large space in the electronic device, and cannot adapt to the increase of the number of antennas.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides electronic equipment, and aims to reduce the internal space of the electronic equipment occupied by a multi-frequency antenna.

The technical scheme of the application is realized as follows:

the embodiment of the application provides an electronic device, which comprises a metal rear cover, a metal front cover and a metal rear cover, wherein the metal rear cover comprises a body part and a side part which are connected in a bending mode, a first gap is formed between the side part and the body part to form a radiating body on the side part, the radiating body comprises a free end and a first grounding end, the free end is spaced from the body part, and the first grounding end is connected with the body part;

the circuit board is provided with a feed source, a first matching circuit and a second matching circuit, the feed source is connected with the radiator through the first matching circuit, one end of the second matching circuit is connected with the radiator, and the other end of the second matching circuit is grounded;

the feed source is used for providing a first excitation signal and a second excitation signal, the first excitation signal is fed into the radiator by the first matching circuit and is grounded by the second matching circuit so as to excite the radiator to resonate in a first frequency band; the second excitation signal is fed into the radiator by the first matching circuit and grounded by the first ground terminal to excite the radiator to resonate in a second frequency band.

In the electronic device, a second slit is disposed on the side portion, and the second slit is communicated with the first slit to divide the side portion into at least two radiators.

In the electronic device, a width of the first slit is greater than or equal to 1.5mm and less than or equal to 3.5 mm;

the width of the second gap is more than or equal to 0.8mm and less than or equal to 2 mm.

In the above electronic device, the radiator further includes a feeding end and a second ground end, the feeding end and the second ground end are located between the free end and the first ground end, a distance between the feeding end and the free end is smaller than a distance between the second ground end and the free end, the first matching circuit is connected to the radiator through the feeding end, and the second matching circuit is connected to the radiator through the second ground end.

In the electronic device, the first excitation signal is fed into the radiator from the feeding terminal, grounded from the second ground terminal, and distributed between the free end and the second ground terminal;

the second excitation signal is fed into the radiator from the feed end, grounded by the first ground end, and distributed between the free end and the first ground end.

In the electronic device, a third matching circuit is further arranged on the circuit board, and the third matching circuit is arranged between the first matching circuit and the feed source;

the feed source is used for providing a third excitation signal, the third excitation signal is fed into the radiator through the first matching circuit by the third matching circuit, and the free end is coupled and grounded through the second slot, so that the radiator is excited to resonate in a third frequency band.

In the electronic device, the third excitation signal is fed into the radiator from the feeding end, coupled to the ground from the free end through the second slot, and distributed between the feeding end and the free end.

In the above electronic device, the first frequency band is a 2.4G WIFI frequency band, the second frequency band is a GPS L5 frequency band, and the third frequency band is a 5G WIFI frequency band.

In the electronic device, the electronic device further comprises a first elastic sheet and a second elastic sheet; wherein the content of the first and second substances,

the first matching circuit is connected to the feed end through a first elastic sheet;

the second matching circuit is connected to the second grounding end through a second elastic sheet.

In the electronic device, a length of the radiator is greater than or equal to 30mm and less than or equal to 40 mm;

the distance from the free end to the first elastic sheet is more than or equal to 4mm and less than or equal to 6 mm;

the distance between the free end and the second elastic sheet is more than or equal to 8mm and less than or equal to 10 mm.

An embodiment of the present application provides an electronic device, including: the metal rear cover comprises a body part and a side edge part which are connected in a bending way, a first gap is arranged between the side edge part and the body part, so as to form a radiating body on the side edge part, wherein the radiating body comprises a free end and a first grounding end, the free end is spaced from the body part, the first grounding end is connected with the body part, a circuit board is arranged on the circuit board, a feed source, a first matching circuit and a second matching circuit are arranged on the circuit board, the feed source is connected with the radiating body through the first matching circuit, one end of the second matching circuit is connected with the radiating body, the other end of the second matching circuit is grounded, the feed source is used for providing a first excitation signal and a second excitation signal, the first excitation signal is fed into the radiating body by the first matching circuit and is grounded by, the first matching circuit feeds a first excitation signal to the radiator, and the first ground terminal is grounded to excite the radiator to resonate in a first frequency band; that is to say, in the embodiment of the present application, when the first frequency band and the second frequency band are excited, one radiator is shared, that is, one radiator is shared by multiple antennas, so that the internal space of the electronic device occupied by the multiple-frequency antenna is reduced while the layout of the multiple antennas is realized, more available space is saved for the electronic device, and thus the space utilization rate of the electronic device is improved.

Drawings

Fig. 1 is a schematic structural diagram of an alternative electronic device provided in an embodiment of the present application;

fig. 2A is a schematic structural diagram of an alternative metal back cover according to an embodiment of the present disclosure;

fig. 2B is a schematic structural diagram of another alternative metal back cover according to an embodiment of the present disclosure;

fig. 3A is a schematic structural diagram of an alternative internal structure of a mobile terminal according to an embodiment of the present disclosure;

fig. 3B is a cross-sectional view of an alternative mobile terminal according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an example of an alternative mobile terminal according to an embodiment of the present disclosure;

fig. 5 is a diagram illustrating the relationship between the frequency of an alternative tri-band antenna and the S11 parameter according to an embodiment of the present invention;

FIG. 6A is a schematic diagram of an alternative GPS-L5 current distribution provided by an embodiment of the present application;

fig. 6B is a schematic current distribution diagram of an optional 2.4G WIFI provided by an embodiment of the present application;

fig. 6C is a schematic current distribution diagram of an optional 5G WIFI provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

An embodiment of the present application provides an electronic device, and fig. 1 is a schematic structural diagram of an optional electronic device provided in an embodiment of the present application, and referring to fig. 1, the electronic device may include: the metal rear cover 100, the metal rear cover 100 includes a body portion 11 and a side portion 12 that are connected by bending, a first gap 13 is provided between the side portion 12 and the body portion 11 to form a radiator on the side portion 12, the radiator includes a free end 14 and a first ground terminal 15, the free end 14 is spaced from the body portion 11, and the first ground terminal 15 is connected with the body portion 11;

the circuit board 200 is provided with a feed source 16, a first matching circuit 17 and a second matching circuit 18, the feed source 16 is connected with the radiator through the first matching circuit 17, one end of the second matching circuit 18 is connected with the radiator, and the other end of the second matching circuit is grounded;

the feed source 16 is configured to provide a first excitation signal and a second excitation signal, where the first excitation signal is fed to the radiator by the first matching circuit 17 and grounded by the second matching circuit 18 to excite the radiator to resonate in the first frequency band; the second excitation signal is fed into the radiator by the first matching circuit 17 and grounded by the first ground terminal to excite the radiator to resonate in the second frequency band.

In an alternative embodiment, the side portion 12 is provided with a second slit, which is communicated with the first slit to divide the side portion 12 into at least two radiators.

In an alternative embodiment, the width of the first gap is greater than or equal to 1.5mm and less than or equal to 3.5 mm;

the width of the second gap is more than or equal to 0.8mm and less than or equal to 2 mm.

In practical applications, taking an electronic device as a mobile terminal as an example, a rear cover of the mobile terminal is made of a metal material, fig. 2A is a schematic structural diagram of an optional rear metal cover provided in an embodiment of the present disclosure, as shown in fig. 2A, the schematic structural diagram outside the rear cover of the mobile terminal is shown, a black region is made of a plastic material, other regions are made of a metal material, a width of a first gap between a body portion and a side portion of the mobile terminal is generally set to be 1.5-3.5mm, a width of a second gap filled with a plastic material on the side portion is generally set to be 0.8-2mm, and a width of the side portion of the rear metal cover is generally set to be 1.5-3.5 mm.

Fig. 2B is a schematic structural diagram of another alternative metal rear cover according to an embodiment of the present disclosure, and fig. 2B is a side view of the metal rear cover of fig. 2A, where a black area is made of a plastic material and other areas are made of a metal material.

Fig. 3A is a schematic structural diagram of an alternative internal portion of a mobile terminal according to an embodiment of the present disclosure, as shown in fig. 3A, a main board 31, a battery 32, a small board 33 and a small board 34 are disposed inside the mobile terminal, the main board 31 and the small board 33 are connected by a connection line 35, and the small board 33 and the small board 34 are connected by a connection line.

Fig. 3B is a cross-sectional view of an alternative side of a mobile terminal according to an embodiment of the present application, and fig. 3B is a side view of the mobile terminal, which includes: a metal front cover 36, circuitry 37, a screen 38, a battery 32 and a rear cover 39 of the mobile terminal.

As can be seen, when the rear cover 39 of the mobile terminal is made of a metal material, the radiator of the antenna of the mobile terminal according to the embodiment of the present invention may be a side portion of a predetermined length on the side portion of the metal material, so that the multiple frequency antennas share one radiator.

Specifically, in the metal rear cover of the electronic device, the body portion 11 and the side portion 12 are made of metal, and the first gap 13 provided between the side portion 12 and the body portion 11 is filled with plastic, so that a radiator can be formed on the side portion 12, and generally, the radiator may include a free end 14, which is generally filled with plastic, and a first ground terminal 15, which is a part of the side portion 12 and is generally connected to the body portion 11.

In order to realize a common radiator for multi-frequency antennas, a feed 16, a first matching circuit 17 and a second matching circuit 18 are generally disposed on a circuit board 200 of an electronic device, wherein the first matching circuit 17 and the second matching circuit 18 are used for impedance matching, and the feed 16 is a basic component of a parabolic antenna or a cassegrain antenna, is a primary radiator of a high gain antenna, and programs electromagnetic wave energy radiated by high frequency current or comfortable electromagnetic waves.

In addition, the feed source 16 is configured to provide a first excitation signal and a second excitation signal, and in order to make the radiator resonate in the first frequency band, the first excitation signal provided by the feed source 16 is fed to the radiator by the first matching circuit 17 and grounded by the second matching circuit 18, so that the radiator can be excited to resonate in the first frequency band, for example, an antenna capable of generating 2.4G WIFI; in order to make the radiator resonate in the second frequency band, a second excitation signal provided by the feed 16 is fed to the radiator by the first matching circuit 17 and grounded by the first ground terminal 15, so that the radiator can be excited to resonate in the second frequency band, for example, an antenna of the GPS L5 can be generated.

Further, in order to implement the antenna with the first frequency band and the second frequency band, in an optional embodiment, the radiator further includes a feeding end and a second grounding end, the feeding end and the second grounding end are located between the free end 14 and the first grounding end 15, a distance between the feeding end and the free end 14 is smaller than a distance between the second grounding end and the free end 14, the first matching circuit 17 is connected to the radiator through the feeding end, and the second matching circuit 18 is connected to the radiator through the second grounding end.

Specifically, the radiator further includes a feeding terminal and a second ground terminal, and the feeding terminal is generally closer to the free end than the second ground terminal, where the first matching circuit 17 is connected to the radiator through the feeding terminal, and the second matching circuit 18 is connected to the radiator through the second ground terminal, so that when the second matching circuit 18 is short-circuited, the first excitation signal provided by the feed source 16 is fed to the radiator by the first matching circuit 17 and grounded by the second matching circuit 18, thereby exciting the radiator to resonate in the first frequency band, and when the second matching circuit 18 is open-circuited, the second excitation signal provided by the feed source 16 is fed to the radiator by the first matching circuit 17 and grounded by the first ground terminal 15, thereby exciting the radiator to resonate in the second frequency band.

For the antennas of the first frequency band and the second frequency band, in an alternative embodiment, the first excitation signal is fed into the radiator from the feeding end, grounded from the second ground end, and distributed between the free end 14 and the second ground end;

the second excitation signal is fed into the radiator from the feed end, is grounded from the first grounding end and is distributed between the free end and the first grounding end;

specifically, the first excitation signal flows from the free end 14 to the second ground, and is distributed at a first position from the free end 14 to the radiator; wherein the length from the free end 14 at the first position is: one quarter of the spacing between the free end 14 to the second ground end; the second excitation signal flows from the free end 14 to the second ground end and is distributed at a second position from the free end 14 to the radiator; wherein the length from the free end 14 at the second position is: one quarter of the length of the radiator.

That is, the current direction and current distribution of the generated current on the radiator are different for the antennas of different frequency bands, the first excitation signal and the second excitation signal both flow from the free end 14 of the radiator to the first ground terminal 15 or the second ground terminal of the radiator for the first frequency band and the second frequency band, and the distribution of the second excitation signal is longer than that of the first excitation signal.

In order to realize that the three-frequency antenna shares one radiator, in an alternative embodiment, a third matching circuit is further disposed on the circuit board 200, and the third matching circuit is disposed between the first matching circuit 17 and the feed 16;

the feed source 16 is configured to provide a third excitation signal, where the third excitation signal is fed into the radiator through the first matching circuit 17 by a third matching circuit, and is coupled and grounded through a second slot by a free end, so as to excite the radiator to resonate in a third frequency band.

Here, a third matching circuit is disposed between the first matching circuit 17 and the feed source 16, and when the feed source 16 provides a third excitation signal to make the radiator resonate in the third frequency band, the third excitation signal is fed into the radiator through the first matching circuit 17 by the third matching circuit and coupled to the ground through the second slot by the free end, so that the radiator can be excited to resonate in the third frequency band.

For the antenna of the third frequency band, in an alternative embodiment, the third excitation signal is fed into the radiator from the feeding end, coupled to the ground from the free end 14 through the second slot, and distributed between the feeding end and the free end 14.

Specifically, the third excitation signal flows from the second ground end to the free end 14, and is distributed from the free end 14 to the third position of the radiator; wherein the length from the free end 14 to the third position is: one quarter of the distance between the free end 14 to the feed end.

Specifically, since the current direction and the current distribution of the generated current on the radiator are different for the antennas of different frequency bands, for the third frequency band, the third excitation signal flows from the first ground terminal 15 or the second ground terminal of the radiator to the free end 14 of the radiator, and the length of the third excitation signal distribution is one fourth of the distance from the free end 14 to the feeding terminal.

In order to realize the connection between the radiator and the matching circuit, in an optional embodiment, the electronic device further includes a first elastic sheet and a second elastic sheet; wherein the content of the first and second substances,

the first matching circuit is connected to the feed end through a first elastic sheet;

the second matching circuit is connected to the second grounding end through the second elastic sheet.

Here, the first elastic piece is used to connect the first matching circuit and the feeding terminal, the second matching circuit is used to connect the second matching circuit and the second grounding terminal, and the connecting member such as the elastic piece is used, so that the connecting member is advantageous for connecting the matching circuit to the radiator because of its advantages of excellent conductivity, high tensile elasticity, high shielding effect, excellent corrosion resistance, long service life, easy installation, and the like.

In an alternative embodiment, the length of the radiator is greater than or equal to 30mm and less than or equal to 40 mm;

the distance from the free end to the first elastic sheet is more than or equal to 4mm and less than or equal to 6 mm;

the distance between the free end and the second elastic sheet is more than or equal to 8mm and less than or equal to 10 mm.

In practical applications, a side portion of 30-40mm metal is usually used as a radiator of an antenna device in consideration of the length of the radiator occupied by the tri-band antenna.

In an optional embodiment, the first frequency band is a 2.4G WIFI frequency band, the second frequency band is a GPS L5 frequency band, and the third frequency band is a 5G WIFI frequency band.

With the arrival of the 5G era, the three-frequency antenna respectively adopts GPS-L5+2.4G WIFI +5G WIFI, and the three-frequency antenna is realized by the first matching circuit, the second matching circuit and the third matching circuit.

Fig. 4 is a schematic structural diagram of an example of an alternative mobile terminal according to an embodiment of the present disclosure, and as shown in fig. 4, the schematic structural diagram of an inside of a rear cover of the mobile terminal is shown, a black area is filled with plastic, an oblique line area and a blank area are made of metal, and a circular area and a square area filled with dots represent a spring, as can be seen from fig. 4, the antenna apparatus is disposed on a main board of the mobile terminal, and includes: the radiator 41, the spring plate 42, the spring plate 43, the matching circuit 44, the matching circuit 45, the matching circuit 46 and the feed source 47, wherein an end opening 48 (equivalent to the free end) is arranged at one end of the radiator, the spring plate 42 and the spring plate 43 are both arranged on the radiator 41, the spring plate 42 is connected to one end of the matching circuit 44, the other end of the matching circuit 44 is connected to one end of the matching circuit 45, the other end of the matching circuit 45 is connected to the feed source 47, the spring plate 43 is connected to one end of the matching circuit 46, and the other end of the matching circuit 46 is grounded.

The matching circuit 44 is composed of a capacitor C1 and a capacitor C2, the matching circuit 45 is composed of a capacitor C3 and an inductor L1, the matching circuit 46 is composed of a capacitor C4 and an inductor L2, one end of the capacitor C1 is connected to one end of the elastic piece 42 and one end of the capacitor C2 respectively, the other end of the capacitor C1 is grounded, the other end of the capacitor C2 is connected to one end of a capacitor C3 of the matching circuit 45, one end of the capacitor C3 is also connected to one end of the inductor L1, the other end of the capacitor C3 is grounded, the other end of the inductor L1 is connected to the feed source, one end of the capacitor C4 and one end of the inductor L2 are both connected to the elastic piece 43, and the other end of the capacitor C4 and the.

In practical applications, the matching circuit 46 is configured as a band-reject filter circuit of the GPS-L5.

The frequency range coverage of the GPS-L5 in the three-frequency antenna is as follows: the frequency band coverage range of 1176MHz and 2.4G WIFI is as follows: the frequency band coverage range of 2400-: 5150 and 5850MHz.

For GPS-L5, matching circuit 46 acts as an open circuit, and for 2.4G WIFI and 5G WIFI, matching circuit 3 acts as a short circuit, where matching circuit 46 realizes aperture tuning, excites different antenna modes, matching circuit 45 is used to match 5G WIFI, adjusts resonance, and matching circuit 44 is a capacitive coupling feed, and front-end parallel capacitance is fine-tuned 2.4G WIFI.

In practical applications, in order to better fixedly connect the matching circuit to the radiator, in fig. 4, the first elastic sheet is usually placed 4-6mm away from the end opening, and the second elastic sheet is placed 8-10mm away from the end opening, so that the matching circuit can be better fixedly connected to the radiator, and the antenna device can achieve the function of a triple-band antenna while occupying a smaller internal space of the mobile terminal.

Fig. 5 is a diagram of a relationship between a frequency of an optional tri-band antenna and S11 parameters, where as shown in fig. 5, an abscissa is frequency in GHz, and an ordinate is S11 parameters in dB, in fig. 5, a resonance point 1 is a resonance point of GPS-L5, a resonance point 2 is a resonance point of 2.4G WIFI, a resonance point 3 is a resonance point of 5G WIFI, a frequency of the resonance point 1 is 1.1419GHz, S11 is-8.5777, a frequency of the resonance point 2 is 2.4495GHz, S11 is-12.576, a frequency of the resonance point 3 is 5.259GHz, and S11 is-19.594.

Fig. 6A is a schematic current distribution diagram of an alternative GPS-L5 according to an embodiment of the present disclosure, where as shown in fig. 6A, the radiation length of the GPS-L5 is the first proportional coefficient multiplied by the length of the whole radiator, as shown by an arrow in fig. 6A, the current distribution of the GPS-L5 is shown, and the current is mainly concentrated in an area as long as the arrow.

Fig. 6B is a schematic current distribution diagram of an optional 2.4G WIFI provided by the embodiment of the present application, as shown in fig. 6B, a radiation length of the 2.4G WIFI is a first proportionality coefficient multiplied by a distance from the end opening to the second elastic piece, as shown by an arrow in fig. 6B, a current distribution of the 2.4G WIFI is shown, and a current is mainly concentrated in an area as long as the arrow.

Fig. 6C is a schematic current distribution diagram of an optional 5G WIFI provided in the embodiment of the present application, as shown in fig. 6C, a radiation length of the 5G WIFI is a second proportionality coefficient multiplied by a distance from the end opening to the first elastic piece, as shown by an arrow in fig. 6C, a current distribution of the 5G WIFI is shown, and a current is mainly concentrated in an area as long as the arrow; wherein the first scaling factor is 1/4.

In the embodiment, different matching is set by using the same antenna radiator and the capacitance characteristics of different frequency bands, three different antenna modes are excited, a three-frequency antenna is realized, and the space utilization rate of the terminal is improved.

An embodiment of the present application provides an electronic device, including: the metal rear cover comprises a body part and a side edge part which are connected in a bending way, a first gap is arranged between the side edge part and the body part, so as to form a radiating body on the side edge part, wherein the radiating body comprises a free end and a first grounding end, the free end is spaced from the body part, the first grounding end is connected with the body part, a circuit board is arranged on the circuit board, a feed source, a first matching circuit and a second matching circuit are arranged on the circuit board, the feed source is connected with the radiating body through the first matching circuit, one end of the second matching circuit is connected with the radiating body, the other end of the second matching circuit is grounded, the feed source is used for providing a first excitation signal and a second excitation signal, the first excitation signal is fed into the radiating body by the first matching circuit and is grounded by, the first matching circuit feeds a first excitation signal to the radiator, and the first ground terminal is grounded to excite the radiator to resonate in a first frequency band; that is to say, in the embodiment of the present application, when the first frequency band and the second frequency band are excited, one radiator is shared, that is, one radiator is shared by multiple antennas, so that the internal space of the electronic device occupied by the multiple-frequency antenna is reduced while the layout of the multiple antennas is realized, more available space is saved for the electronic device, and thus the space utilization rate of the electronic device is improved.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims (10)

1. An electronic device, comprising:

the metal rear cover comprises a body part and a side part which are connected in a bending mode, a first gap is formed between the side part and the body part to form a radiating body on the side part, the radiating body comprises a free end and a first grounding end, the free end is spaced from the body part, and the first grounding end is connected with the body part;

the circuit board is provided with a feed source, a first matching circuit and a second matching circuit, the feed source is connected with the radiator through the first matching circuit, one end of the second matching circuit is connected with the radiator, and the other end of the second matching circuit is grounded;

the feed source is used for providing a first excitation signal and a second excitation signal, the first excitation signal is fed into the radiator by the first matching circuit and is grounded by the second matching circuit so as to excite the radiator to resonate in a first frequency band; the second excitation signal is fed into the radiator by the first matching circuit and grounded by the first ground terminal to excite the radiator to resonate in a second frequency band.

2. The electronic device of claim 1,

and a second gap is arranged on the side edge part, and the second gap is communicated with the first gap so as to divide the side edge part into at least two radiating bodies.

3. The electronic device of claim 2,

the width of the first gap is more than or equal to 1.5mm and less than or equal to 3.5 mm;

the width of the second gap is more than or equal to 0.8mm and less than or equal to 2 mm.

4. The electronic device of claim 2,

the radiator further comprises a feed end and a second grounding end, the feed end and the second grounding end are located between the free end and the first grounding end, the distance between the feed end and the free end is smaller than the distance between the second grounding end and the free end, the first matching circuit is connected with the radiator through the feed end, and the second matching circuit is connected with the radiator through the second grounding end.

5. The electronic device of claim 4,

the first excitation signal is fed into the radiator from the feed end, grounded by the second ground end, and distributed between the free end and the second ground end;

the second excitation signal is fed into the radiator from the feed end, grounded by the first ground end, and distributed between the free end and the first ground end.

6. The electronic device of claim 4 or 5, wherein a third matching circuit is further disposed on the circuit board, and the third matching circuit is disposed between the first matching circuit and the feed source;

the feed source is further configured to provide a third excitation signal, where the third excitation signal is fed into the radiator through the first matching circuit by the third matching circuit, and is coupled to the ground through the second slot by the free end, so as to excite the radiator to resonate in a third frequency band.

7. The electronic device of claim 6,

the third excitation signal is fed into the radiator from the feed end, coupled and grounded by the free end through the second slot, and distributed between the feed end and the free end.

8. The electronic device of claim 6,

the first frequency band is a 2.4G WIFI frequency band, the second frequency band is a GPS L5 frequency band, and the third frequency band is a 5 GWIFIDI frequency band.

9. The electronic device of claim 4, further comprising a first resilient tab and a second resilient tab; wherein the content of the first and second substances,

the first matching circuit is connected to the feed end through a first elastic sheet;

the second matching circuit is connected to the second grounding end through a second elastic sheet.

10. The electronic device of claim 9,

the length of the radiator is more than or equal to 30mm and less than or equal to 40 mm;

the distance from the free end to the first elastic sheet is more than or equal to 4mm and less than or equal to 6 mm;

the distance between the free end and the second elastic sheet is more than or equal to 8mm and less than or equal to 10 mm.

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