CN114243256B

CN114243256B - Electronic equipment

Info

Publication number: CN114243256B
Application number: CN202111322387.9A
Authority: CN
Inventors: 罗智杰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2024-10-25
Anticipated expiration: 2041-11-09
Also published as: CN114243256A

Abstract

The embodiment of the application discloses an electronic device, which comprises: the metal middle frame comprises a ground plane and a metal frame arranged around the ground plane, and a first gap is formed at the joint of the ground plane and the metal frame so as to form an antenna radiator which is spaced from the ground plane on the metal frame; and the rear cover is covered with the metal middle frame and is provided with a metal decorating part, a second gap is formed in the metal decorating part, and the orthographic projection of the second gap on the grounding surface is at least partially overlapped with the first gap. The embodiment of the application can reduce the adverse effect of the metal decorating part on the antenna performance.

Description

Electronic equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an electronic device.

Background

Along with the development of communication technology, electronic devices adopted in communication show a trend of diversified development, and one current scheme is to adopt a metal frame, and an antenna radiator is arranged on the metal frame. However, some electronic devices have a rear cover with a decorative member embedded therein for aesthetic and reinforcement of the rear camera lens; when the decoration is made of metal, radiation of the metal frame may be attenuated, thereby affecting antenna performance of the electronic device.

Disclosure of Invention

The following is a summary of the subject matter of the detailed description of the application. This summary is not intended to limit the scope of the claims.

The embodiment of the application provides electronic equipment, which can reduce the adverse effect of a metal decoration on the performance of an antenna.

The electronic equipment provided by the embodiment of the application comprises:

the metal middle frame comprises a ground plane and a metal frame arranged around the ground plane, and a first gap is formed at the joint of the ground plane and the metal frame so as to form an antenna radiator which is spaced from the ground plane on the metal frame;

And the rear cover is covered with the metal middle frame and is provided with a metal decorating part, a second gap is formed in the metal decorating part, and the orthographic projection of the second gap on the grounding surface is at least partially overlapped with the first gap.

In the embodiment of the application, the first gap is formed between the metal frame and the ground plane of the electronic equipment, so that when the antenna radiator is formed on the metal frame, the metal decoration piece covered on the back cover of the electronic equipment possibly absorbs part of electromagnetic waves radiated into the space by the metal frame, and further, the antenna performance of the electronic equipment is adversely affected, and therefore, the second gap which is at least partially overlapped with the first gap in the direction perpendicular to the ground plane is formed on the metal decoration piece, and parasitic radiators can be formed on the metal decoration piece, so that the influence on the radiation performance of the metal frame is reduced.

Other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

Drawings

The accompanying drawings are included to provide an understanding of the principles of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the principles of the application.

FIG. 1 is a schematic view of a metal middle frame and a metal decoration in an electronic device according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a rear cover in an electronic device according to an embodiment of the present application;

FIG. 3 is one of the schematic diagrams of a metal center in an exemplary embodiment;

FIG. 4 is one of the schematic views of a metallic trim piece in an exemplary embodiment;

FIG. 5 is a second schematic illustration of a metal center in an exemplary embodiment;

FIG. 6 is a second schematic illustration of a metallic trim piece in an exemplary embodiment;

FIG. 7 is a third schematic illustration of a metal center in an exemplary embodiment;

FIG. 8 is a third schematic illustration of a metallic trim piece in an exemplary embodiment;

FIG. 9 is a schematic view of a metal bezel and metal trim in the electronic device of example 1;

Fig. 10 is a schematic diagram showing the variation of S11 parameter with frequency in example 1;

Fig. 11 is a schematic diagram of the current distribution of the ground plane when the resonance mode 1 is adopted in example 1;

Fig. 12 is a schematic diagram of the current distribution of the ground plane when resonant mode 2 is employed in example 1;

FIG. 13 is a schematic view showing the current distribution of the metal garnish in example 1 when the resonance mode 3 is employed;

FIG. 14 is a graph of the efficiency versus one of example 1 and alternatives one and two;

FIG. 15 is a second comparison of the efficiency of example 1 and alternatives one and two;

fig. 16 is a schematic diagram of the case where the S11 parameter varies with frequency in example 2;

fig. 17 is a schematic diagram of the current distribution of the ground plane when resonant mode 4 is employed in example 2;

fig. 18 is a schematic diagram showing the current distribution of the metal garnish when the resonance mode 5 is employed in example 2.

Reference numerals illustrate:

1: metal middle frame 11: ground plane

12: Metal frame 2: rear cover

21: Metal decorative piece 22: lens of rear camera module

31: First slit 32: second gap

33: Third slit 34: fourth gap

311: First slit section 312: a second gap section

321: Third gap section 322: fourth gap section

40: Antenna radiator 41: first antenna radiator

42: Second antenna radiator 51: first parasitic radiator

52: The second parasitic radiator 60: feed point

61: Feed 62: feeder line

63: Matching circuit

Detailed Description

The present application will be described in detail below with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the examples described below are only for explaining the present application and are not intended to limit the present application.

It should be appreciated that the description as relating to "first", "second", etc. in the present application is merely for distinction in the description and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

An embodiment of the present application provides an electronic device, as shown in fig. 1 and 2, including:

The metal middle frame 1 comprises a grounding surface 11 and a metal frame 12 arranged around the grounding surface 11, wherein a first gap 31 is formed at the joint of the grounding surface 11 and the metal frame 12 so as to form an antenna radiator 40 which is spaced from the grounding surface 11 on the metal frame 12;

The rear cover 2 is covered with the metal middle frame 1, the rear cover 2 is provided with a metal decorating part 21, a second gap 32 is formed on the metal decorating part 21, and the orthographic projection of the second gap 32 on the ground plane 11 is at least partially overlapped with the first gap 31.

The electronic device according to this embodiment may include any one or more of the following: handheld devices, vehicle-mounted devices, wearable devices, computing devices, other processing devices, MSs (Mobile Station), various forms of UEs (User Equipment); the UE may be, for example, a mobile phone or a tablet computer.

In this embodiment, as shown in fig. 2, the rear cover 2 of the electronic device has an opening at a position corresponding to the rear camera module to expose the lens 22 of the rear camera module; in the drawings, only one lens is shown, a plurality of lenses can be arranged in practical application, and the arrangement mode of the lenses and the positions of the lenses on the metal decorative piece 21 are not limited; the outline shape of the metal garnish 21 is not limited to the pattern shown in the drawings. The metal decoration 21 can penetrate through the outer surface and the inner surface of the rear cover 2, is presented on the appearance surface of the electronic equipment from the opening of the rear cover, can seal the part except the lens 22 in the rear camera module in the electronic equipment, plays roles of covering, protecting, blocking light and the like, and ensures that the electronic equipment can take a photograph effectively by utilizing the rear camera module; the metal decorative piece 21 is at least partially present from the opening of the rear cover 2 and also has a certain aesthetic effect. After the rear cover 2 is covered on the metal middle frame 1, a distance between the metal decorating part 21 and the ground plane can be 1-2 mm.

In this embodiment, a partial slotting process can be performed between the metal frame 12 and the ground plane 11, and plastic or other insulating materials can be filled in the slot to form a radiation space of the antenna. The antenna radiator 40 transmits or receives signals using the slot as a radiation space. The slit obtained by the slotting process at least comprises a first slit 31, and other slits except the first slit 31 can be formed between the metal frame 12 and the ground plane 11 according to requirements.

In this embodiment, the metal frame 12 may be a rounded rectangular frame, including a first side and a third side which are disposed in parallel and have the same length, and a second side and a fourth side which are disposed in parallel and have the same length; the first slit 31 may be located near the projection position of the opening on the rear cover 2 on the ground plane 11, i.e. near the rear camera module, for example near the angle between the first side and the second side. Wherein the first slit 31 may be, but is not limited to being, at least partially parallel to one side of the metal bezel 12, such as partially parallel to the adjacent side.

In this embodiment, the projected edge of the metal decorative piece 21 on the ground plane 11 may be irregularly shaped, or may be rectangular as shown in fig. 1 and 2; if rectangular, two adjacent sides of the rectangle may be parallel to the first and second sides of the metal frame 12, respectively. The projection of the metallic trim piece 21 onto the ground plane 11 may be near the angle between the first side and the second side.

In this embodiment, considering that when the antenna radiator is formed on the metal bezel 12, the metal decoration 21 may absorb part of the electromagnetic wave radiated into the space by the metal bezel 12, and thus adversely affect the antenna performance of the electronic device, the metal decoration 21 is provided with the second slit 32, and the second slit 32 and the first slit 31 at least partially overlap in the direction perpendicular to the ground plane 11; that is, the orthographic projections of the first slit 31 and the second slit 32 on the ground plane 11 at least partially overlap; this allows parasitic radiators to be formed on the metal trim 21 to reduce the effect on the radiation performance of the metal bezel 12.

In an exemplary embodiment, as shown in fig. 3, a third slot 33 is formed on the metal frame 12 and is communicated with the first slot 31, the third slot 33 divides the antenna radiator 40 into a first antenna radiator 41 and a second antenna radiator 42, the first antenna radiator 41 includes a first grounding end connected with the grounding surface 11 and a first free end facing the third slot 33, the second antenna radiator 42 includes a second grounding end connected with the grounding surface 11 and a second free end facing the third slot 33, a feeding point 60 is disposed on the first antenna radiator 41, and a distance between the feeding point and the first free end is smaller than a distance between the feeding point and the first grounding end.

In this embodiment, the feed source 61 in the electronic device may be connected to the feed point 60 on the first antenna radiator 41 through the feed line 62, and when the electronic device is used, a radio frequency electromagnetic field is excited on the first antenna radiator 41, and electromagnetic waves are radiated to the space to transmit or receive signals. Current will be fed to the first antenna radiator 41 through the feed point 60 and will flow along the first slot 31.

In this embodiment, the electronic device may further include a matching circuit 63 disposed between the feeding point 60 and the feeding source 61, and the matching circuit 63 may be connected to the feeding line 62 for performing impedance matching and balanced matching, so that the operation state of the antenna may be more stable.

In this embodiment, the third slot 33 may be, but is not limited to, perpendicular to at least part of the first slot 31, and may be in communication with the first slot 31 at a suitable position on the first slot 31 according to the frequency band that the electronic device needs to support. Similarly, the position of the feeding point 60 may be set according to the frequency band to be supported.

In this embodiment, a plurality of antenna radiators can be divided on the metal frame 12 through the third slot 33, so as to support the transmission and reception of signals in different frequency bands. The third gap 33 may include one or more, and be disposed at different positions of the metal frame 12, where the third gap 33 is located may be set according to the frequency band to be supported.

In one implementation of this embodiment, as shown in fig. 4, the metal decoration 21 is further provided with a fourth slit 34 that communicates with the second slit 32, and an orthographic projection of the fourth slit 34 on the metal middle frame 1 is at least partially overlapped with the third slit 33.

In this embodiment, the projections of the second slit 32 and the fourth slit 34 on the ground plane 11 may overlap the first slit 31 and the third slit 33 completely, so that the communication position, the included angle, etc. between the fourth slit 34 and the second slit 32 are the same as those between the third slit 33 and the first slit 31.

In an exemplary embodiment, as shown in fig. 5 and 6, the first slit 31 includes a first slit section 311 and a second slit section 312 that are in communication with each other; the second slit 32 includes a third slit section 321 and a fourth slit section 322 which communicate with each other; the orthographic projection of the third slot segment 321 on the ground plane 11 overlaps the first slot segment 311, and the orthographic projection of the fourth slot segment 322 on the ground plane 11 overlaps the second slot segment 312.

In this embodiment, the orthographic projections of the third slot segment 321 and the first slot segment 311 on the ground plane 11 overlap, which means that the two are parallel and the same length, and are coincident in the thickness direction of the electronic device; as is fourth gap segment 322 and second gap segment 312.

In this embodiment, the first slit section 311 and the second slit section 312 may be perpendicular to each other, and the third slit section 321 and the fourth slit section 322 may be perpendicular to each other correspondingly.

In this embodiment, the first slit section 311 and the second slit section 312 may be respectively connected through one end, and if the first slit section 311 and the second slit section 312 are perpendicular to each other, the first slit 31 may be regarded as an "L" shaped slit, as shown in fig. 5; accordingly, the second slit 32 will be considered another slit of the same "L" shape. The projection of the L-shaped slit between the metal bezel 12 and the ground plane 11 and on the metal garnish 21 onto the ground plane 11 may be completely coincident.

In one implementation of this embodiment, the first slot segment 311 and the third slot segment 321 may extend in the same direction as the first antenna radiator 41, and the second slot segment 312 and the fourth slot segment 322 may extend in the same direction as the second antenna radiator 42.

In one implementation of this embodiment, as shown in fig. 6, the third slit section 321 penetrates the metal decoration 21 at the side where the first grounding end is located, so as to form the first parasitic radiator 51 on the metal decoration 21, and the fourth slit section 322 penetrates the metal decoration 21 at the side where the second grounding end is located, so as to form the second parasitic radiator 52 on the metal decoration 21; wherein the first parasitic radiator 51 is connected to the second parasitic radiator 52.

In this embodiment, the metal decoration 21 may have a parasitic radiator formed thereon, so that at least one supportable frequency band can be additionally added to the frequency band supported by the metal frame 12.

In the present embodiment, the front projection of the first parasitic radiator 51 on the metal center 1 may overlap with a part of the first antenna radiator 41, and the front projection of the second parasitic radiator 52 on the metal center 1 may overlap with another part of the first antenna radiator 41 and a part of the second antenna radiator 42.

In this embodiment, for example, the first antenna radiator 41 includes a portion of the second side edge of the metal frame 12 and the first side edge between the third slot 33 and the second side edge, and then the projection of the first parasitic radiator 51 on the ground plane 11 may overlap only the portion of the second side edge. The second antenna radiator 42 comprises at least a portion of the first side edge of the metal frame 12 between the third slot 33 and the fourth side edge, and then the projection of the second parasitic radiator 52 onto the ground plane 11 may overlap the first and second antenna radiators of the first side edge.

In the present embodiment, the communication position and the angular relationship between the first and second slit sections are not limited to the form shown in fig. 5; the communication position and angular relationship between the third and fourth slit segments are also not limited to the form shown in fig. 6.

In an exemplary embodiment, as shown in fig. 7, the first slot 31 includes a first slot segment 311 and a second slot segment 312 that are mutually communicated, a third slot 33 that is communicated with the first slot 31 is opened on the metal frame 12, the third slot 33 divides the antenna radiator 40 into a first antenna radiator 41 and a second antenna radiator 42, the first antenna radiator 41 includes a first grounding end connected with the grounding surface 11 and a first free end facing the third slot 33, the second antenna radiator 42 includes a second grounding end connected with the grounding surface 11 and a second free end facing the third slot 33, a feeding point 60 is provided on the first antenna radiator 41, and a distance between the feeding point and the first free end is smaller than a distance between the feeding point and the first grounding end.

In this embodiment, the metal trim 21 may adopt the scheme shown in fig. 6, and includes only the third slit section 321 and the fourth slit section 322 which are in communication. Alternatively, on the basis of the scheme shown in fig. 6, a fourth slot 34 that is communicated with the fourth slot section 322 may be formed on the second parasitic radiator 52, as shown in fig. 8, and the orthographic projection of the fourth slot 34 on the metal middle frame 1 at least partially overlaps with the third slot 33, so that the performance of the antenna may be further optimized.

In an exemplary embodiment, an electronic device has: the first resonance mode is a 1/4 wavelength resonance mode of the first frequency band generated by the first antenna radiator 41 between the feeding point 60 and the first ground.

In this embodiment, the first frequency band may be an L1 frequency band of the GPS.

In an exemplary embodiment, an electronic device has: the second resonant mode is a 1/4 wavelength resonant mode of the second frequency band generated by the second antenna radiator 42.

In this embodiment, the second frequency band may be a WiFi 2.4 frequency band.

In an exemplary embodiment, an electronic device has: the third resonance mode is a 1/2 wavelength resonance mode of the third frequency band generated by the first parasitic radiator 51 and the second parasitic radiator 52 together.

In this embodiment, the third frequency band may be a frequency band around 2.9 GHz.

In an exemplary embodiment, an electronic device has: the fourth resonant mode is a 3/4 wavelength resonant mode of a fourth frequency band generated by the first antenna radiator between the feed point and the first ground.

In this embodiment, the fourth frequency band may be a WiFi 5G frequency band.

In an exemplary embodiment, an electronic device has: the fifth resonance mode is a 1-time wavelength resonance mode of the fourth frequency band generated by the first parasitic radiator and the second parasitic radiator.

In an exemplary embodiment, the electronic device may further include a tuning component for switching between a plurality of resonant modes that are present, such that the electronic device may support a plurality of different frequency bands. Such as, but not limited to, switching between two or more of the first-fourth frequency bands.

The above-described embodiments are described below with two examples.

Example 1

The present example provides an electronic device, comprising: the metal middle frame 1, a rear cover which can be covered on one side of the metal middle frame and a screen cover which can be covered on the other side of the metal middle frame. The metal center 1 and the metal garnish 21 provided on the rear cover are shown in fig. 9.

In this example, the metal middle frame 1 includes a ground plane 11 and a metal frame 12 disposed around the ground plane 11; the metal middle frame 1 can be covered with the rear cover on one side to form the back appearance surface of the electronic equipment, and the front appearance surface of the electronic equipment can be finally formed by combining the screen cover plate on the other side.

In the present embodiment, the metal frame 12 has a first side and a third side which are disposed in parallel and have the same length, and a second side and a fourth side which are disposed in parallel and have the same length; the first and third sides are shorter than the second and fourth sides, respectively. When a user holds the electronic device in a conventional manner, the first side is located above the third side, and devices such as a microphone and a charging port can be arranged on the third side.

In this example, a first slot 31 is formed at the connection between the first side edge and the second side edge of the metal frame 12 and the ground plane 11, so as to form an antenna radiator spaced from the ground plane 11 on the metal frame 12; the first slit 31 comprises a first slit section 311 parallel to the first side edge and a second slit section 312 parallel to the second side edge; the first slit section 311 and the second slit section 312 are communicated at respective ends and are perpendicular to each other.

In this example, a third slot 33 is further provided on the first side of the metal frame 12, which communicates with the first slot 31 and is perpendicular to at least part of the first slot 31, and the third slot divides the antenna radiator into a first antenna radiator 41 and a second antenna radiator 42. The first antenna radiator 41 includes a first ground end connected to the ground plane 11 and a first free end facing the third slot 33, i.e. includes a portion of the second side, and a first side located between the third slot 33 and the second side. The second antenna radiator 42 comprises a second ground end connected to the ground plane 11 and a second free end facing the third slot 33, i.e. at least a portion of the first side between the third slot 33 and the fourth side.

In this example, referring to fig. 7, the metal middle frame 1 is provided with a feeding point 60 on the first antenna radiator 41, and the distance between the feeding point 60 and the first free end is smaller than the distance between the feeding point 60 and the first ground end; the feed 61 provided on the ground plane 11 may be connected to the feed point 60 through a feed line 62 to feed current to the first antenna radiator 41, thereby realizing signal radiation on the first antenna radiator 41; the current fed to the first antenna radiator 41 will flow along the first slot 31.

In this example, an opening is provided in the rear cover to expose the lens 22 of the rear camera module; the metal decorative piece 21 may penetrate the front and rear surfaces of the rear cover to emerge from the opening; the lens 22 can be fixed on the metal decoration 21, and the metal decoration 21 can mask, protect and block light to the part of the rear camera module outside the lens 22.

In this example, the metal decoration 21 is provided with a second slit 32, the second slit 32 includes a third slit section 321 and a fourth slit section 322, and orthographic projections of the third slit section 321 and the fourth slit section 322 on the ground plane 11 overlap with the first slit section 311 and the second slit section 312 respectively; it can be seen that the first slot segment 311, the third slot segment 321 extend in the same direction as the first antenna radiator 41, and the second slot segment 312 and the fourth slot segment 322 extend in the same direction as the second antenna radiator 42. The third slit section 321 penetrates the metal decoration 21 at a side where the first ground terminal is located to form a first parasitic radiator 51 on the metal decoration 21, and the fourth slit section 322 penetrates the metal decoration 21 at a side where the second ground terminal is located to form a second parasitic radiator 52 on the metal decoration, the first parasitic radiator 51 being connected to the second parasitic radiator 52, an orthographic projection of the first parasitic radiator 51 on the metal center 1 overlapping a portion (a portion located on the second side) of the first antenna radiator 41, an orthographic projection of the second parasitic radiator 52 on the metal center 1 overlapping another portion (a portion located on the first side) of the first antenna radiator 41 and a portion of the second antenna radiator 42.

In this example, as shown in fig. 10, the S11 parameter of the antenna component changes in different resonance modes, and the S11 parameter is a parameter for indicating return loss. In fig. 10, the abscissa indicates frequency in GHz, and the ordinate indicates dB value corresponding to the S11 parameter; each negative peak represents a resonant mode. Three resonant modes are shown in fig. 10: resonance mode 1, resonance mode 2 and resonance mode 3, different resonance modes are used for supporting the receiving and transmitting of signals of different frequency bands; reference point 1 in fig. 10 corresponds to resonant mode 1, coordinates (1.58, -2.2885); reference points 2 and 3 correspond to resonant mode 2, with coordinates (2.4, -4.3665) and (2.5, -0.95273), respectively.

In this example, resonant mode 1 may support the L1 frequency band of GPS (1575.42 MHz), which is the 1/4 wavelength resonant mode of the frequency band generated by the first antenna radiator 41 between the feed point 60 and the first ground; in the case of resonant mode 1, the current distribution on the first antenna radiator 41, the second antenna radiator 42 and the ground plane 11 is shown in fig. 11, and it can be seen that the current is mainly distributed along the first slot segment 311 and part of the second slot segment 312 corresponding to the first antenna radiator.

In this example, resonant mode 2 may support the frequency band of wifi2.4 (2.4-2.483 GHz), which is the 1/4 wavelength resonant mode of the frequency band generated by the second antenna radiator 42; in the case of resonant mode 2, the current distribution on the first antenna radiator 41, the second antenna radiator 42 and the ground plane 11 is shown in fig. 12, and it can be seen that the current is mainly distributed along the second slot segment 312 corresponding to the second antenna radiator.

In this example, the resonance mode 3 may support a frequency band around 2.9GHz, which is a 1/2 wavelength resonance mode of the frequency band generated by the first parasitic radiator 51 and the second parasitic radiator 52 together; in the resonant mode 3, the current distribution on the metallic trim piece 21 is shown in fig. 13, and it can be seen that the current is mainly distributed along the third slit section 321 and the fourth slit section 322, and is attenuated in the region near the position penetrating the metallic trim piece.

To illustrate the effect of the present example, example 1 is compared with two alternatives, one of which differs from example 1 in that the metal garnish 21 is not included; the second alternative differs from example 1 in that no slit is provided in the metal garnish 21.

The efficiency pairs for example 1 and the two alternatives above are shown in fig. 14 and 15, where the abscissa is frequency, in GHz, and the ordinate is the dB value for efficiency. As shown in fig. 14, at the GPS corresponding frequency of 1.6GHz, the efficiency of example 1 is slightly worse than the first alternative by about 0.55dB, but better than the second alternative by about 0.5dB; this degree of efficiency decay is acceptable in view of the effects of the metal trim, although somewhat less efficient than the first alternative. As shown in fig. 15, at the frequency 2.4196GHz corresponding to wifi2.4, the efficiency of example 1 is improved by about 1.61dB compared to the first alternative, and about 1.64dB compared to the second alternative; it can be seen that example 1 also produces an effect of efficiency gain on wifi2.4 over the alternative.

Example 2

In this example, the structures of the metal center 1 and the metal garnish 21 in the electronic apparatus are as shown in fig. 9, and reference is made to example 1. On the basis of example 1, the supportable frequency band in example 2 extends to around 6GHz, and in addition to resonance mode 1, resonance mode 2, and resonance mode 3 in example 1, resonance mode 4 and resonance mode 5 may be supported.

In this example, the variation of the S11 parameter of the antenna component in different resonant modes is shown in fig. 16, and the abscissa in fig. 16 represents the frequency in GHz, and the ordinate represents the dB value corresponding to the S11 parameter. Reference point 4 in fig. 16 corresponds to resonant mode 4, coordinates (5.236, -3.0629); the reference point 5 corresponds to the resonant mode 5, with coordinates (5.579, -1.4735), respectively.

In this example, resonant mode 4 may support the frequency band of WiFi 5G, which is the 3/4 wavelength resonant mode of the frequency band generated by the first antenna radiator between the feed point and the first ground. In the case of the resonant mode 4, the current distribution on the first antenna radiator 41, the second antenna radiator 42 and the ground plane 11 is as shown in fig. 17, and it can be seen that the current is mainly distributed along the portion of the second slot section 312 corresponding to the first antenna radiator and along the portion of the first slot section 311 other than the area near the second slot section 312. In the first slot segment 311, the current gradually decreases and changes direction in the area near the second slot segment 312 and in the middle of the second slot segment 312 corresponding to the second antenna radiator.

In this example, the resonant mode 5 may support a WiFi 5G frequency band, which is a 1-wavelength resonant mode of the fifth frequency band generated by the first parasitic radiator 51 and the second parasitic radiator 52. In the case of the resonance mode 5, as shown in fig. 18, it can be seen that the current is distributed along the third slit section 321 and the fourth slit section 322, the current is weakened in the area near the position penetrating the metal trim, and the current is gradually weakened and changed in the area near the junction of the two in the fourth slit section 322.

It can be seen that this example can resonate at 5-6GHz, with the ability to cover the WiFi5G band (5-5.85 GHz).

The present application has been described in terms of several embodiments, but the description is illustrative and not restrictive, and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the described embodiments. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or in place of any other feature or element of any other embodiment unless specifically limited.

The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of the present application may also be combined with any conventional features or elements to form a unique arrangement. Any feature or element of any embodiment may also be combined with features or elements from other inventive arrangements to form another unique arrangement. It is therefore to be understood that any of the features shown and/or discussed in the present application may be implemented alone or in any suitable combination. Further, various modifications and changes may be made within the scope of protection.

Furthermore, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other sequences of steps are possible as will be appreciated by those of ordinary skill in the art. Accordingly, the particular order of the steps set forth in the specification should not be construed as limitations. Furthermore, descriptions of the methods and/or processes should not be limited to performing their steps in the order written, as one skilled in the art may readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.

Claims

1. An electronic device, comprising:

2. The electronic device of claim 1, wherein:

The metal frame is provided with a third gap communicated with the first gap, the third gap divides the antenna radiator into a first antenna radiator and a second antenna radiator, the first antenna radiator comprises a first grounding end connected with the grounding surface and a first free end facing the third gap, the second antenna radiator comprises a second grounding end connected with the grounding surface and a second free end facing the third gap, a feed point is arranged on the first antenna radiator, and the distance between the feed point and the first free end is smaller than that between the feed point and the first grounding end.

3. The electronic device of claim 2, wherein:

The first gap comprises a first gap section and a second gap section which are communicated with each other, the second gap comprises a third gap section and a fourth gap section which are communicated with each other, the orthographic projection of the third gap section on the ground plane is overlapped with the first gap section, and the orthographic projection of the fourth gap section on the ground plane is overlapped with the second gap section.

4. The electronic device of claim 3, wherein:

The extending directions of the first slot section and the third slot section are the same as those of the first antenna radiator, and the extending directions of the second slot section and the fourth slot section are the same as those of the second antenna radiator.

5. The electronic device of claim 3, wherein:

the third gap section penetrates through the metal decorating part on one side where the first grounding end is located so as to form a first parasitic radiator on the metal decorating part, the fourth gap section penetrates through the metal decorating part on one side where the second grounding end is located so as to form a second parasitic radiator on the metal decorating part, and the first parasitic radiator is connected with the second parasitic radiator.

6. The electronic device of claim 5, wherein:

The orthographic projection of the first parasitic radiator on the metal middle frame overlaps with a part of the first antenna radiator, and the orthographic projection of the second parasitic radiator on the metal middle frame overlaps with another part of the first antenna radiator and a part of the second antenna radiator.

7. An electronic device as claimed in claim 5 or 6, characterized in that:

And a fourth gap communicated with the second gap is formed in the second parasitic radiator, and the orthographic projection of the fourth gap on the metal middle frame is at least partially overlapped with the third gap.

8. The electronic device of any one of claims 2-5, wherein the electronic device has: the first resonant mode is a quarter wavelength resonant mode of a first frequency band generated by a first antenna radiator between the feed point and the first ground.

9. The electronic device of any one of claims 2-5, wherein the electronic device has: the second resonant mode is a quarter-wavelength resonant mode of a second frequency band generated by the second antenna radiator.

10. The electronic device according to claim 5 or 6, characterized in that the electronic device has:

And the third resonance mode is a half-wavelength resonance mode of a third frequency band generated by the first parasitic radiator and the second parasitic radiator together.

11. The electronic device of any one of claims 2-5, wherein the electronic device has: and a fourth resonant mode which is a three-quarter wavelength resonant mode of a fourth frequency band generated by the first antenna radiator between the feed point and the first ground.

12. The electronic device according to claim 5 or 6, characterized in that the electronic device has:

And a fifth resonance mode, which is a double wavelength resonance mode of a fourth frequency band generated by the first parasitic radiator and the second parasitic radiator.