CN214477889U - Radio frequency structure and electronic equipment - Google Patents

Abstract

The application provides a radio frequency structure and an electronic device. The radio frequency structure includes: the radio frequency chip with two radio frequency ports and three antenna radiators. The antenna radiator 1 is electrically connected with the radio frequency port 1 at a feed position 1, the antenna radiator 1 is grounded at a grounding position 1 and a grounding position 2, and the grounding position 1 is positioned between the feed position 1 and the grounding position 2; the antenna radiator 2 is coupled with the first end of the antenna radiator 1 for feeding, and the antenna radiator 2 is grounded at a grounding position 3; the antenna radiator 3 and the second end of the antenna radiator 1 are coupled and fed, and the antenna radiator 3 is grounded at a grounding position 4; the antenna radiator 1 and the antenna radiator 2 may form 3 types of antennas of a frequency band 1, a frequency band 2, and a frequency band 3, and the antenna radiator 1 and the antenna radiator 3 may form 3 types of antennas of a frequency band 4, a frequency band 5, and a frequency band 6. The scheme provided by the application is beneficial to arranging a plurality of antennas with better performance in the limited space of the electronic equipment.

Description

Radio frequency structure and electronic equipment

Technical Field

The application relates to the field of electronic equipment, in particular to a radio frequency structure and electronic equipment.

Background

With the development of communication technology, electronic devices may include more and more antennas, such as 2 × 2 Multiple Input Multiple Output (MIMO) antennas or 4 × 4MIMO antennas, so that more communication services may be provided to users. However, the electronic device itself has features of high integration, lightness, thinness, and convenience, which makes it relatively difficult to add an antenna with better radio frequency performance in the electronic device (the antenna with better radio frequency performance may generally have features such as low hand-holding risk, low loss, complementary pattern, etc.).

SUMMERY OF THE UTILITY MODEL

The application provides a radio frequency structure and electronic equipment, and aims to arrange a plurality of antennas with better performance in a limited space of the electronic equipment.

In a first aspect, a radio frequency structure is provided, which includes:

the radio frequency chip comprises a first radio frequency port and a second radio frequency port;

the first antenna radiator is electrically connected with the first radio frequency port at a first feeding position, the first antenna radiator is grounded at a first grounding position and a second grounding position, and the first grounding position is positioned between the first feeding position and the second grounding position;

one end of the second antenna radiator is coupled with the first end of the first antenna radiator for feeding, the first end is positioned on one side of the first feeding position far away from the first grounding position, and the second antenna radiator is grounded at a third grounding position;

one end of the third antenna radiator is coupled with the second end of the first antenna radiator for feeding, the second end is positioned on one side, far away from the first grounding position, of the second grounding position, the third antenna radiator is electrically connected with the second radio frequency port at the second feeding position, the third antenna radiator is grounded at a fourth grounding position, and the fourth grounding position is positioned on one side, far away from the first antenna radiator, of the second feeding position; wherein the content of the first and second substances,

the first radio frequency port, the first portion of the first antenna radiator, and the second antenna radiator form a first antenna whose operating frequency band is a first frequency band, the first radio frequency port, the second portion of the first antenna radiator, and the second antenna radiator form a second antenna whose operating frequency band is a second frequency band, the first radio frequency port, the first portion, the second portion, and the second antenna radiator form a third antenna whose operating frequency band is a third frequency band, the first portion includes a portion of the first antenna radiator between the first feeding position and the first grounding position, and the second portion includes a portion of the first antenna radiator between the first end and the first feeding position;

the second radio frequency port and the third part of the third antenna radiator form a fourth antenna with a fourth working frequency band, the second radio frequency port, the fourth part of the third antenna radiator and the fifth part of the first antenna radiator form a fifth antenna with a fifth working frequency band, the second radio frequency port, the third part, the fourth part and the fifth part of the first antenna radiator form a sixth antenna with a sixth working frequency band, the third portion and the fourth portion are respectively located on two sides of the second feeding position, the third portion includes a portion of the third antenna radiator between the second feeding position and the fourth ground position, the fifth portion includes a portion of the first antenna radiator between the second ground location and the second end.

Optionally, the fourth portion includes a portion of the third antenna radiator between the second feeding position and the first antenna radiator,

the radio frequency structure provided by the embodiment of the application can have relatively better isolation and relatively lower return loss, and can also form a plurality of mutually complementary radiation directions, so that the radio frequency structure provided by the embodiment of the application can have relatively better antenna performance, and is favorable for realizing relatively better data transmission performance. Moreover, the radio frequency structure provided by the application can work on at least 4 frequency bands, so that the radio frequency structure provided by the embodiment of the application can have relatively high multiplexing rate and integration level.

With reference to the first aspect, in certain implementations of the first aspect, the first antenna is a left-handed antenna.

The first antenna is a left-handed antenna, which is beneficial to reducing the size of the first antenna radiator and reducing the occupied space of the radio frequency structure in the electronic equipment. In addition, left-handed antennas tend to have superior antenna performance over other antennas (e.g., inverted-F antennas).

With reference to the first aspect, in certain implementations of the first aspect, the corresponding electrical length of the first antenna is λ₁Odd multiples of/8, λ₁Corresponding to the first frequency band.

Through the electric length that the reasonable setting first antenna corresponds, be favorable to compromise good antenna performance and less occupation space.

With reference to the first aspect, in some implementations of the first aspect, the electrical length corresponding to the second antenna is λ₂Odd multiples of/4, λ₂Corresponding to the second frequency band.

Through the electric length that the reasonable setting second antenna corresponds, be favorable to compromise good antenna performance and less occupation space.

With reference to the first aspect, in certain implementations of the first aspect, the electrical length corresponding to the third antenna is λ₃Odd multiple of/2, λ₃Corresponding to the third frequency band.

Through the electric length that the reasonable setting third antenna corresponds, be favorable to compromise good antenna performance and less occupation space.

With reference to the first aspect, in certain implementations of the first aspect, the fourth antenna is a left-handed antenna.

The fourth antenna is a left-handed antenna, which is beneficial to reducing the size of the first antenna radiator and reducing the occupied space of the radio frequency structure in the electronic equipment.

The fourth antenna is a left-handed antenna, which is beneficial to reducing the size of the radiator of the third antenna and reducing the occupied space of the radio frequency structure in the electronic equipment. In addition, left-handed antennas tend to have superior antenna performance over other antennas (e.g., inverted-F antennas).

With reference to the first aspect, in certain implementations of the first aspect, the electrical length corresponding to the fourth antenna is λ₄Odd multiples of/8, λ₄Corresponding to the fourth frequency band.

Through the electric length that the reasonable setting fourth antenna corresponds, be favorable to compromise good antenna performance and less occupation space.

With reference to the first aspect, in certain implementations of the first aspect, the electrical length corresponding to the fifth antenna is λ₅Odd multiples of/4, λ₅Corresponding to the fifth frequency band.

Through the electric length that the reasonable setting fifth antenna corresponds, be favorable to compromise good antenna performance and less occupation space.

With reference to the first aspect, in certain implementations of the first aspect, the sixth antenna corresponds to an electrical length λ₆Odd multiple of/2, λ₆Corresponding to the sixth frequency band.

Through the electric length that the reasonable setting sixth antenna corresponds, be favorable to compromise good antenna performance and less occupation space.

With reference to the first aspect, in certain implementations of the first aspect, the first antenna is an inverted-F antenna, and the first portion further includes a portion of the first antenna radiator between the first end and the first feed location.

The first antenna is an inverted-F antenna, which is beneficial to being compatible with the existing and common antenna structure.

With reference to the first aspect, in certain implementations of the first aspect, the corresponding electrical length of the first antenna is λ₁Odd multiples of/4, λ₁Corresponding to the first frequency band.

Through the electric length that the reasonable setting first antenna corresponds, be favorable to making the radio frequency structure have good antenna performance.

With reference to the first aspect, in certain implementations of the first aspect, the third antenna has an electrical length of 3 λ₃Odd multiples of/4, λ₃Corresponding to the third frequency band.

The corresponding electrical length of the third antenna is reasonably set, so that the radio frequency structure has excellent antenna performance.

With reference to the first aspect, in certain implementations of the first aspect, the fourth antenna is an inverted-F antenna, and the third portion further includes the fourth portion.

The fourth antenna is an inverted-F antenna, which is beneficial to being compatible with the existing and common antenna structure.

With reference to the first aspect, in certain implementations of the first aspect, the electrical length corresponding to the fourth antenna is λ₄Odd multiples of/4, λ₄Corresponding to the fourth frequency band.

The corresponding electrical length of the fourth antenna is reasonably set, so that the radio frequency structure has excellent antenna performance.

With reference to the first aspect, in certain implementations of the first aspect, the sixth antenna corresponds to an electrical length of 3 λ₆Odd multiples of/4, λ₆Corresponding to the sixth frequency band.

Through the reasonable electric length that sets up the sixth antenna correspondence, be favorable to making the radio frequency structure have good antenna performance.

With reference to the first aspect, in certain implementations of the first aspect, a distance between the first ground location and the second ground location is greater than a preset spacing.

According to the embodiment of the application, the fifth antenna and the sixth antenna have relatively excellent antenna performance through the second grounding position, and the isolation between different antennas in the radio frequency structure can be improved.

With reference to the first aspect, in some implementation manners of the first aspect, the second frequency band is different from the third frequency band, a difference between the second frequency band and the third frequency band is smaller than a preset frequency, the second frequency band is the same as the fifth frequency band, and the third frequency band is the same as the sixth frequency band.

Optionally, the first frequency band is different from the second frequency band, and a difference between the first frequency band and the second frequency band is greater than a preset frequency.

Optionally, the fourth frequency band is different from the fifth frequency band, and a difference between the fourth frequency band and the fifth frequency band is greater than a preset frequency.

With reference to the first aspect, in certain implementations of the first aspect, the radio frequency chip is a 2 × 2 wireless fidelity WiFi multiple-input multiple-output MIMO chip or a 4 × 4WiFi MIMO chip.

That is, the rf chip supports 2 × 2WiFi multiple-input multiple-output MIMO or 4 × 4WiFi MIMO.

In a second aspect, an electronic device is provided, comprising: the radio frequency structure as described in any one of the implementations of the first aspect above.

In a third aspect, an electronic device is provided, including:

the radio frequency chip comprises a first radio frequency port and a second radio frequency port;

a first partial side electrically connected to the first rf port at a first feeding position, the first partial side being grounded at a first grounding position and a second grounding position, the first grounding position being located between the first feeding position and the second grounding position;

a second partial side, one end of the second partial side being coupled to a first end of the first partial side, the first end being located on a side of the first feeding position away from the first grounding position, the second partial side being grounded at a third grounding position;

a third portion side, one end of the third portion side being coupled to a second end of the first portion side, the second end being located on a side of the second ground position away from the first ground position, the third portion side being electrically connected to the second rf port at a second feed position, the third portion side being grounded at a fourth ground position, the fourth ground position being located on a side of the second feed position away from the first portion side; wherein the content of the first and second substances,

the first part side edge, the second part side edge and the third part side edge are positioned on a first side edge of the electronic equipment;

the first radio frequency port, a first part of a side edge of the first part form a first antenna with a first working frequency band, the first radio frequency port, a second part of the side edge of the first part, and a second part of the side edge of the second part form a second antenna with a second working frequency band, the first radio frequency port, the first part, the second part, and the second part side edge form a third antenna with a third working frequency band, the first part comprises a part of the side edge of the first part between the first feeding position and the first grounding position, and the second part comprises a part of the side edge of the first part between the first end and the first feeding position;

the second radio frequency port, the third part of the third part side edge form a fourth antenna with a fourth working frequency band, the second radio frequency port, the fourth part of the third part side edge and the fifth part of the first part side edge form a fifth antenna with a fifth working frequency band, the second radio frequency port, the third part, the fourth part and the fifth part of the first part side edge form a sixth antenna with a sixth working frequency band, the third part and the fourth part are respectively positioned on two sides of the second feeding position, the third part comprises a part of the third part side edge between the second feeding position and the fourth grounding position, and the fifth part comprises a part of the first part side edge between the second grounding position and the second end.

In the application, the radio frequency structure can be arranged on a shell of the electronic equipment, and the insertion loss of the radio frequency structure is favorably reduced. In addition, the radio frequency structure provided by the embodiment of the application can have relatively better isolation and relatively lower return loss, and can also form a plurality of mutually complementary radiation directions, so that the radio frequency structure provided by the embodiment of the application can have relatively better antenna performance, and is favorable for realizing relatively better data transmission performance.

With reference to the third aspect, in some implementations of the third aspect, the first partial side, the second partial side, and the third partial side are located between the camera module and the key.

In this application, the radio frequency structure can set up near button, camera module, is favorable to reducing the frequency that the user touched the radio frequency structure, and then is favorable to promoting the antenna performance of radio frequency structure when the actual work.

With reference to the third aspect, in some implementations of the third aspect, the radio frequency chip is a 2 × 2 wireless fidelity WiFi multiple input multiple output MIMO chip or a 4 × 4WiFi MIMO chip.

Drawings

Fig. 1 is a schematic structural diagram of a tablet computer according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a tablet computer according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a mobile phone according to an embodiment of the present application.

Fig. 4 is an exploded view of a mobile phone according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a radio frequency structure according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a radio frequency structure according to an embodiment of the present application.

Fig. 7 is a radio frequency schematic diagram of a first antenna according to an embodiment of the present application.

Fig. 8 is a diagram illustrating an rf effect of a first antenna according to an embodiment of the present application.

Fig. 9 is a radio frequency schematic diagram of a second antenna according to an embodiment of the present application.

Fig. 10 is a diagram illustrating an rf effect of a second antenna according to an embodiment of the present application.

Fig. 11 is a radio frequency schematic diagram of a third antenna according to an embodiment of the present application.

Fig. 12 is a diagram illustrating an rf effect of a third antenna according to an embodiment of the present application.

Fig. 13 is a radio frequency schematic diagram of a fourth antenna according to an embodiment of the present application.

Fig. 14 is a diagram illustrating an rf effect of a fourth antenna according to an embodiment of the present application.

Fig. 15 is a radio frequency schematic diagram of a fifth antenna according to an embodiment of the present application.

Fig. 16 is a diagram illustrating an rf effect of a fifth antenna according to an embodiment of the present application.

Fig. 17 is a radio frequency schematic diagram of a sixth antenna according to an embodiment of the present application.

Fig. 18 is a diagram illustrating an rf effect of a sixth antenna according to an embodiment of the present application.

Fig. 19 is a diagram illustrating an rf effect of another sixth antenna according to an embodiment of the present application.

Fig. 20 is a diagram illustrating an rf effect of a first antenna set according to an embodiment of the present application.

Fig. 21 is a diagram illustrating an rf effect of a second antenna set according to an embodiment of the present application.

Fig. 22 is a diagram illustrating an rf effect of an rf structure according to an embodiment of the present application.

Fig. 23 is a current cloud diagram of an rf structure according to an embodiment of the present disclosure.

Fig. 24 is a pattern diagram of a first group of antennas and a second group of antennas according to an embodiment of the present application.

Fig. 25 is a pattern diagram of a first group of antennas and a second group of antennas according to another embodiment of the present application.

Fig. 26 is a diagram of a first group of antennas, a second group of antennas, and a radio frequency structure according to an embodiment of the present application.

Fig. 27 is a schematic structural diagram of another radio frequency structure provided in an embodiment of the present application.

Fig. 28 is a radio frequency schematic diagram of another first antenna provided in an embodiment of the present application.

Fig. 29 is a radio frequency schematic diagram of another second antenna provided in an embodiment of the present application.

Fig. 30 is a radio frequency schematic diagram of another third antenna provided in the embodiments of the present application.

Fig. 31 is a radio frequency schematic diagram of another fourth antenna provided in the embodiment of the present application.

Fig. 32 is a radio frequency schematic diagram of another fifth antenna provided in the embodiments of the present application.

Fig. 33 is a radio frequency schematic diagram of another sixth antenna provided in the embodiments of the present application.

Fig. 34 is a schematic structural diagram of another tablet computer provided in the embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 to fig. 4 are schematic structural diagrams of two electronic devices 100 provided in the embodiment of the present application. The electronic device 100 may be a mobile phone, a tablet computer, an e-reader, a television, a notebook computer, a digital camera, a vehicle-mounted device, a wearable device, or other devices that include radio frequency functionality. The embodiment shown in fig. 1 to 2 is described by taking the electronic device 100 as a tablet computer as an example. The embodiments shown in fig. 3 to 4 are described by taking the electronic device 100 as a mobile phone as an example.

As shown in fig. 1 to 4, the electronic device 100 may include a display screen 110 and a housing 120. The housing 120 may include a rear cover 121 and a side frame 122, wherein the side frame 122 surrounds the periphery of the display screen 110 and surrounds the periphery of the rear cover 121, the rear cover 121 and the display screen 110 are disposed in parallel at an interval, and the rear cover 121 and the display screen 110 are respectively located at two sides of the side frame 122. In an embodiment provided by the present application, the back cover 121 and the side frame 122 may be two parts of the housing 120, respectively, the back cover 121 and the side frame 122 may be connected, and the connection relationship between the back cover 121 and the side frame 122 cannot be divided. In another embodiment provided by the present application, as shown in fig. 4, the back cover 121 and the side frame 122 may be two different components, and the housing 120 of the electronic device 100 may be formed by assembling the back cover 121 and the side frame 122 together. In some examples, side bezel 122 may be the outer perimeter of a middle frame of an electronic device.

As shown in fig. 1 to 4, the side frame 122 of the electronic device 100 may further include a key 130. The key 130 may be, for example, a power key, a volume key, a start key, etc. As shown in fig. 2, a cavity formed between the display screen 110, the side frame 122, and the rear cover 121 may be used to place a camera module 140, and the like, where the camera module 140 may expose the rear cover 121 of the electronic device 100.

As shown in fig. 1 to 4, the cavity formed between the display screen 110, the side frame 122, and the rear cover 121 may also be used for placing components such as the rf chip 150. The rf chip 150 may be disposed beside components such as the key 130, the camera module 140, and the like. As shown in fig. 2 and 4, the rf chip 150 may include one or more signal output ports, and a signal from the rf chip 150 may be conducted to the side frame 122 of the electronic device 100 through the electrical connection, so that the side frame 122 may transmit an rf signal.

A radio frequency architecture 200 provided by an embodiment of the present application is described below with respect to the dashed box 160 in fig. 2.

First, an electrical connection diagram of an rf structure 200 provided in an embodiment of the present application is described with reference to fig. 5. As shown in fig. 5, the rf structure 200 may include an rf chip 150, a first antenna radiator 210, a second antenna radiator 220, a third antenna radiator 230, and a plurality of electrical connections. The rf chip 150 may be, for example, a chip supporting 2 × 2 wireless fidelity (WiFi) MIMO. The first antenna radiator 210 may be located between the second antenna radiator 220 and the third antenna radiator 230. The electrical connections may be used to enable conduction between various conductive devices within rf structure 200.

The first antenna radiator 210 may include a first end 211 and a second end 212, where the first end 211 and the second end 212 are two ends of the first antenna radiator 210. Between the first end 211 and the second end 212, the first antenna radiator 210 may have a first feed location 213, a first ground location 214, and a second ground location 215. The first feeding location 213 can be between the first end 211 and the first ground location 214. The first ground location 214 can be located between the first feed location 213 and the second ground location 215. The second ground location 215 can be between the first ground location 214 and the second end 212.

The second antenna radiator 220 may include a third end 221 and a fourth end 222, and the third end 221 and the fourth end 222 may be both ends of the second antenna radiator 220. The direction of extension from the third end 221 to the fourth end 222 may be the same or substantially the same as the direction of extension from the first end 211 to the second end 212. The fourth end 222 is disposed opposite (or opposite, facing, and adjacent) to the first end 211, and a first gap 251 may be formed between the fourth end 222 and the first end 211. The first end 211 of the first antenna radiator 210 may be coupled to feed the fourth end 222 of the second antenna radiator 220. In some examples, the width of the first gap 251 may be 1-2 mm, and particularly, the width of the first gap 251 may be 1.5 mm. Between the third end 221 and the fourth end 222, the second antenna radiator 220 may have a third ground location 223. The third ground location 223 may be relatively closer to the third end 221 of the second antenna radiator 220.

The third antenna radiator 230 may include a fifth end 231 and a sixth end 232, and the fifth end 231 and the sixth end 232 may be two ends of the third antenna radiator 230. The direction of extension from the fifth end 231 to the sixth end 232 may be the same or substantially the same as the direction of extension from the first end 211 to the second end 212. The second end 212 and the fifth end 231 are disposed opposite (or opposite, face-to-face, adjacent) to each other, and a second gap 252 may be formed between the second end 212 and the fifth end 231. The second end 212 of the first antenna radiator 210 may be coupled to a feed with the fifth end 231 of the third antenna radiator 230. In some examples, the width of the second gap 252 may be 1-2 mm, and particularly, the width of the second gap 252 may be 1.5 mm. Between the fifth end 231 and the sixth end 232, the third antenna radiator 230 may have a second feeding position 233 and a fourth grounding position 234. The second feed location 233 can be relatively closer to the fifth end 231 of the third antenna radiator 230, and the fourth ground location 234 can be relatively closer to the sixth end 232 of the third antenna radiator 230.

The rf chip 150 may include a first feeding port 151 and a second feeding port 152, the first feeding port 151 may be electrically connected to the first feeding position 213 of the first antenna radiator 210, and the second feeding port 152 may be electrically connected to the second feeding position 233 of the third antenna radiator 230. The first ground location 214 of the first antenna radiator 210, the second ground location 215 of the first antenna radiator 210, the third ground location 223 of the second antenna radiator 220, and the fourth ground location 234 of the third antenna radiator 230 may all be grounded.

Fig. 6 shows one possible implementation of the rf structure 200 shown in fig. 5 disposed on the side frame 122 shown in fig. 1, 2, and 4.

The first antenna radiator 210, the second antenna radiator 220, and the third antenna radiator 230 may be 3 portions of the side frame 122 shown in fig. 1, 2, and 4. That is, the side frame 122 may include a first portion side 1221, a second portion side 1222, and a third portion side 1223, where the first portion side 1221, the second portion side 1222, and the third portion side 1223 are three portions of the same side. The first portion side 1221 may correspond to the first antenna radiator 210, the second portion side 1222 may correspond to the second antenna radiator 220, and the third portion side 1223 may correspond to the third antenna radiator 230.

As can be seen from fig. 5, the first feeding position 213 of the first partial side 1221 can be electrically connected to the first feeding port 151 of the rf chip 150. The second feeding location 233 of the second part side 1222 may be electrically connected with the second feeding port 152 of the rf chip 150. The first ground location 214 of the first portion side 1221, the second ground location 215 of the first portion side 1221, the third ground location 223 of the second portion side 1222, and the fourth ground location 234 of the third portion side 1223 can all be conducted to the back cover 121 shown in fig. 1, 2, and 4, so that the first ground location 214, the second ground location 215, the third ground location 223, and the fourth ground location 234 are all grounded.

In other possible examples, the first ground location 214, the second ground location 215, the third ground location 223, and the fourth ground location 234 may also be conducted to a middle frame of the electronic device 100, so that the first ground location 214, the second ground location 215, the third ground location 223, and the fourth ground location 234 are all grounded. The embodiments of the present application may not limit the specific implementation manner of grounding the first grounding location 214, the second grounding location 215, the third grounding location 223, and the fourth grounding location 234.

In some possible examples, the first gap 251 between the first portion side 1221 and the second portion side 1222 and the second gap 252 between the first portion side 1221 and the third portion side 1223 may be filled with an insulating material, such that the first portion side 1221 and the second portion side 1222 may be connected by the insulating material and the first portion side 1221 and the third portion side 1223 may be connected by the insulating material.

The following describes the radio frequency principle of the radio frequency structure 200 provided by the embodiment of the present application, by taking the example shown in fig. 6 as an example, and combining fig. 7 to fig. 19. It will be appreciated that the radio frequency principles described in figures 7 to 19 may be applied to the example shown in figure 5 in addition to the example shown in figure 6.

As shown in fig. 7, the rf signal from the first feeding port 151 may be sequentially conducted to the back cover 121 (ground) through the first feeding position 213 and the first grounding position 214 of the first partial side 1221 (which may be regarded as the first antenna radiator 210 shown in fig. 5). So that the radio frequency structure 200 may include a first antenna. The first antenna may be formed by the first feeding port 151 and a portion of the first portion side 1221 between the first feeding location 213 and the first ground location 214. The first antenna may belong to a left-handed antenna.

The direction of the current of the first antenna is shown by the dashed arrow in fig. 7 (the direction of the current shown in fig. 7 and below may be the direction of the current at a certain moment, and the direction of the current of the antenna may be reversed because the rf signal may have a transition from a positive value to a negative value and vice versa). Wherein the direction of current flow on the first portion side 1221 can be substantially uniform. Fig. 8 (a) shows the current pattern of the first antenna. Fig. 8 (b) is a current cloud of the first antenna. Fig. 8 (c) shows a directional pattern of the first antenna with respect to the side frame 122.

The mode of operation of the first antenna may be a left-handed mode. The working frequency band of the first antenna may correspond to a first target resonance wavelength λ₁. In some possible examples, λ₁The corresponding frequency band may be, for example, 2.38 to 2.45 GHz. Thus, the first antenna may be a WiFi 2.4G antenna or a bluetooth antenna.

The distance between the first feeding location 213 and the first ground location 214 may correspond to an electrical length λ ₁8, or λ₁Odd multiples of/8. For example, the distance between the first feeding location 213 and the first ground location 214 may be between 7 and 9mm, and particularly, the distance between the first feeding location 213 and the first ground location 214 may be 8 mm. It can be seen that the distance between the first feeding location 213 and the first ground location 214 may be relatively small.

As shown in fig. 9, the rf signal from the first feeding port 151 may be sequentially conducted to the rear cover 121 (ground) through the first feeding position 213, the first end 211, the first slot 251 of the first portion side 1221, the fourth end 222 of the second portion side 1222 (which may be regarded as the second antenna radiator 220 shown in fig. 5), and the third ground position 223. That is, the first terminal 211 can couple rf signals to the fourth terminal 222. The radio frequency structure 200 may thus comprise a second antenna, which may be formed by the first feed port 151, the portion of the first part side 1221 between the first feed location 213 and the first end 211, the first slot 251, and the portion of the second part side 1222 between the fourth end 222 and the third ground location 223. The second antenna may belong to a parasitic antenna.

The direction of the current flow of the second antenna is shown by the dashed arrow in fig. 9. The direction of the current on the first portion side 1221, the direction of the current passing through the first slot 251, and the direction of the current on the second portion side 1222 may be substantially the same. Fig. 10 (a) shows the current pattern of the second antenna. Fig. 10 (b) is a current cloud of the second antenna.

The operating mode of the second antenna may be a slot Common Mode (CM) mode (which may mean that the direction and magnitude of the current on both sides of the slot are substantially the same). The working frequency band of the second antenna may correspond to a second target resonant wavelength λ₂. In some possible examples, λ₂The corresponding frequency band may be, for example, 5.0 to 5.35 GHz. Thus, the second antenna may be a WiFi 5G antenna.

The distance between the first feeding location 213 and the first end 211 of the first partial side 1221 may correspond to an electrical length λ₂/4, or λ₂Odd multiples of/4. For example, the distance between the first feeding position 213 and the first end 211 may be 0.3-1 mm, and particularly, the distance between the first feeding position 213 and the first end 211 may be 0.5 mm. It can be seen that the distance between the first feeding location 213 and the first end 211 can be relatively small.

The distance between the third ground location 223 and the fourth end 222 of the second portion side 1222 may correspond to an electrical length λ₂/4, or λ₂Odd multiples of/4. For example, the distance between the third ground position 223 and the fourth end 222 may be between 0.3 and 1mm, in particularThe distance between the third ground location 223 and the fourth end 222 may be 0.5 mm. It can be seen that the distance between the third ground location 223 and the fourth end 222 can be relatively small.

As shown in fig. 11, the rf signal from the first feeding port 151 may be conducted to the back cover 121 (ground) sequentially through the first feeding position 213 and the first end 211 of the first partial side 1221, the first slot 251, the fourth end 222 of the second partial side 1222, and the third grounding position 223, and the rf signal from the first feeding port 151 may be conducted to the back cover 121 (ground) sequentially through the first feeding position 213 and the first grounding position 214 of the first partial side 1221. That is, the first terminal 211 can couple rf signals to the fourth terminal 222. The radio frequency structure 200 may thus comprise a third antenna, which may be formed by the first feed port 151, the portion of the first portion side 1221 between the first ground location 214 and the first end 211, the first slot 251, and the portion of the second portion side 1222 between the fourth end 222 and the third ground location 223. The third antenna may belong to a combination of a left-handed antenna and a parasitic antenna.

The direction of the current flow of the third antenna is shown by the dashed arrow in fig. 11. The direction of the current flowing between the first end 211 and the first feeding position 213 of the first partial side 1221, the direction of the current flowing through the first slot 251, and the direction of the current flowing on the second partial side 1222 may be substantially the same; the direction of current flow between the first feed location 213 and the first ground location 214 of the first portion side 1221 may be substantially uniform; the direction of the current flow of the first part side 1221 between the first end 211 and the first feeding location 213 may be substantially opposite to the direction of the current flow of the first part side 1221 between the first feeding location 213 and the first ground location 214. Fig. 12 (a) shows the current pattern of the third antenna. Fig. 12 (b) is a current cloud diagram of the third antenna.

The operation mode of the third antenna may be a slot (slot) Differential Mode (DM) mode (which may mean that the directions of currents on both sides of the slot are substantially opposite, and the magnitudes of the currents are substantially the same). The working frequency band of the third antenna can correspond to a third target resonant wavelengthλ₃. The operating frequency band of the third antenna may be closer to but different from the operating frequency band of the second antenna. That is to say, the central operating frequency point of the second antenna is different from the central operating frequency point of the third antenna, and the difference between the central operating frequency point of the second antenna and the central operating frequency point of the third antenna is less than the preset frequency (for example, 0.7 GHz). In some possible examples, λ₃The corresponding frequency band may be, for example, 5.35 to 5.75 GHz. Thus, the third antenna may be a WiFi 5G antenna.

As can be seen from the above, the distance between the third ground location 223 of the second portion side 1222 and the first ground location 214 of the first portion side 1221 may correspond to an electrical length λ ₃2, or λ₃Odd multiples of/2. For example, the distance between the first grounding location 214 and the third grounding location 223 may be between 10 to 12mm, and particularly, the distance between the first grounding location 214 and the third grounding location 223 may be 10.5 mm. It can be seen that the distance between the first ground location 214 and the third ground location 223 can be relatively small.

The first feeding position 213, the first grounding position 214, and the third grounding position 223 are appropriately arranged, so that the first portion side 1221 and the second portion side 1222 can operate in different frequency bands. In the first aspect, the portion of the first partial side 1221 between the first feeding position 213 and the first grounding position 214 may be used to implement the operating frequency band of the first antenna and the operating frequency band of the third antenna. In the second aspect, the portion of the first partial side 1221 between the first feeding position 213 and the first end 211, the first slot 251, and the portion of the second partial side 1222 between the third grounding position 223 and the fourth end 222 may be used to implement the operating frequency band of the second antenna and the operating frequency band of the third antenna. Therefore, the antenna reuse rate is improved, and the occupied space of the rf structure 200 on the electronic device 100 is reduced.

As can be seen from the examples shown in fig. 7 to 12, the first antenna, the second antenna, and the third antenna may be logical 3 antennas. The 3 antennas may share the same physical structure, and the 3 antennas may not be simply divided into 3 different hardware structures. The first antenna, the second antenna, and the third antenna may be considered a first group of antennas. That is, the first group of antennas provided in the embodiments of the present application can implement a relatively wide bandwidth through multiplexing of physical structures.

As shown in fig. 13, the rf signal from the second feeding port 152 may be sequentially conducted to the rear cover 121 (ground) through the second feeding position 233 and the fourth grounding position 234 of the third partial side 1223 (which may be regarded as the third antenna radiator 230 shown in fig. 5); and, the rf signal from the second feeding port 152 may pass through the second feeding position 233, the fifth end 231, the second slot 252, the second end 212 of the first partial side 1221, and the second grounding position 215 of the third partial side 1223 in sequence to be conducted to the back cover 121 (ground). The radio frequency structure 200 may thus include a fourth antenna, which may be formed by the second feed port 152, the portion of the first portion side 1221 between the second ground location 215 and the second end 212, the second slot 252, and the portion of the third portion side 1223 between the fifth end 231 and the fourth ground location 234. The fourth antenna may belong to a left-handed antenna.

The direction of the current flow of the fourth antenna is shown by the dashed arrow in fig. 13. The current direction of the first partial side 1221 between the second ground position 215 and the second end 212, the current direction through the second slot 252, and the current direction of the third partial side 1223 between the fifth end 231 and the second feeding position 233 may be substantially the same; the direction of current flow between the second feed location 233 and the fourth ground location 234 of the third portion sides 1223 may be substantially uniform; the direction of the current of the third partial side 1223 between the fifth end 231 and the second feeding position 233 may be substantially opposite to the direction of the current of the third partial side 1223 between the second feeding position 233 and the fourth grounding position 234. Fig. 14 (a) shows current patterns of the fourth antenna. Fig. 14 (b) is a current cloud diagram of the fourth antenna. Fig. 14 (c) shows a pattern of the fourth antenna with respect to the side frame 122.

Operation of the fourth antennaThe mode may be a left-handed mode. The working frequency band of the fourth antenna may correspond to a fourth target resonant wavelength λ₄. In some possible examples, λ₄The corresponding frequency band may be, for example, 1.565 to 1.585 GHz. Thus, the fourth antenna may be a GPS antenna.

The distance between the second feeding location 233 and the fourth ground location 234 of the third part side 1223 may correspond to an electrical length λ ₄8, or λ₄Odd multiples of/8. For example, the distance between the second feeding position 233 and the fourth grounding position 234 may be between 25 and 30mm, and particularly, the distance between the second feeding position 233 and the fourth grounding position 234 may be 28 mm. It can be seen that the distance between the second feeding location 233 and the fourth ground location 234 can be relatively small.

As shown in fig. 15, the rf signal from the second feeding port 152 may pass through the second feeding position 233, the fifth end 231, the second slot 252, the second end 212 of the first partial side 1221, and the second grounding position 215 of the third partial side 1223 in sequence to reach the back cover 121 (ground). That is, the second terminal 212 can couple the rf signal to the fifth terminal 231. The radio frequency structure 200 may thus comprise a fifth antenna which may be formed by the second feed port 152, the part of the third part side 1223 between the second feed position 233 and the fifth end 231, the second slot 252, the part of the first part side 1221 between the second ground position 215 and the second end 212. The fifth antenna may belong to a parasitic antenna.

The direction of the current of the fifth antenna is shown by the dashed arrow in fig. 15. The direction of the current flowing between the second ground position 215 and the second end 212 of the first partial side 1221, the direction of the current flowing through the second slot 252, and the direction of the current flowing between the fifth end 231 and the second feeding position 233 of the third partial side 1223 may be substantially the same. Fig. 16 (a) shows current patterns of the fifth antenna. Fig. 16 (b) is a current cloud diagram of the fifth antenna.

The operating mode of the fifth antenna may be a parasitic mode. The working frequency band of the fifth antenna may correspond to a fifth target resonance wavelength λ₅. In some canExamples of energy are λ₅The corresponding frequency band may be, for example, 5.0 to 5.35 GHz. Thus, the fifth antenna may be a WiFi 5G antenna.

The distance between the second ground location 215 and the second end 212 of the first portion side 1221 may correspond to an electrical length λ₅/4, or λ₅Odd multiples of/4. For example, the distance between the second grounding position 215 and the second end 212 may be 0.3-1 mm, and particularly, the distance between the second grounding position 215 and the second end 212 may be 0.5 mm. It can be seen that the distance between the second ground location 215 and the second end 212 can be relatively small.

In some possible examples, the distance between the second feeding location 233 and the fifth end 231 of the third part-side 1223 may correspond to the electrical length λ₅/4, or λ₅Odd multiples of/4. For example, the distance between the second feeding position 233 and the fifth end 231 may be 0-1 mm, and particularly, the distance between the second feeding position 233 and the fifth end 231 may be 0-0.5 mm. It can be seen that the distance between the second feeding location 233 and the fifth end 231 can be relatively small.

As shown in fig. 17, the rf signal from the second feeding port 152 may be conducted to the rear cover 121 (ground) through the second feeding position 233 and the fourth grounding position 234 of the third partial side 1223 in sequence; and, the rf signal from the second feeding port 152 may be conducted to the back cover 121 (ground) through the second feeding position 233, the fifth end 231, the second slot 252, the second end 212 of the first partial side 1221, and the second ground position 215 of the third partial side 1223 in sequence. That is, the second terminal 212 can couple the rf signal to the fifth terminal 231. The radio frequency structure 200 may thus comprise a sixth antenna, which may be formed by the second feed port 152, the portion of the first portion side 1221 between the second ground location 215 and the second end 212, the second slot 252, and the portion of the third portion side 1223 between the fifth end 231 and the fourth ground location 234. The sixth antenna may belong to a combination of a left-handed antenna and a parasitic antenna.

The direction of the current of the sixth antenna is shown by the dashed arrow in fig. 17. The direction of the current flowing between the second ground location 215 and the second end 212 of the first portion side 1221, the direction of the current flowing through the second slot 252, and the direction of the current flowing between the fifth end 231 and the second feeding location 233 of the third portion side 1223 may be substantially the same.

It is noted that when the fourth antenna is operated, as shown in fig. 13, the current direction on the portion of the third section side 1223 between the second feeding position 233 and the fourth grounding position 234 can be kept consistent. That is, the current direction on the portion of the third partial side 1223 close to the second feeding position 233 is the first current direction, the current direction on the portion of the third partial side 1223 close to the fourth grounding position 234 is the second current direction, and the first current direction and the second current direction may be substantially the same. When the sixth antenna is operated, as shown in fig. 17, the direction of the current on the portion of the third partial side 1223 between the second feeding position 233 and the fourth grounding position 234 may be changed. That is, the current direction on the portion of the third partial side 1223 near the second feeding position 233 is a first current direction, the current direction on the portion of the third partial side 1223 near the fourth grounding position 234 is a second current direction, and the first current direction and the second current direction may be opposite. In addition, the current direction of the third partial side 1223 between the fifth end 231 and the second feeding position 233 may be opposite to the first current direction and substantially the same as the second current direction.

The mode of operation of the sixth antenna may be a left-handed mode. The working frequency band of the sixth antenna may correspond to a sixth target resonance wavelength λ₆. The operating frequency band of the fifth antenna may be closer to but different from the operating frequency band of the sixth antenna. That is to say, the central operating frequency point of the fifth antenna is different from the central operating frequency point of the sixth antenna, and the difference between the central operating frequency point of the fifth antenna and the central operating frequency point of the sixth antenna is smaller than the preset frequency.

In some possible examples, λ₆The corresponding frequency band may be, for example, 5.35 to 5.75 GHz. In other possible examples, λ₆Corresponding frequency bandFor example, the frequency may be 5.75 to 6 GHz. Thus, the sixth antenna may be a WiFi 5G antenna. FIG. 18 (a) shows current patterns of the sixth antenna operating at 5.35 to 5.75 GHz. FIG. 18 (b) is a current cloud diagram of the sixth antenna operating at 5.35-5.75 GHz. FIG. 19 (a) shows current patterns of the sixth antenna operating at 5.75 to 6 GHz. FIG. 19 (b) is a current cloud diagram of the sixth antenna operating at 5.75-6 GHz. FIG. 19 (c) shows the directivity pattern of the sixth antenna with respect to the side frame 122 when the sixth antenna operates at 5.75 to 6 GHz.

As can be seen from the above, the distance between the second ground location 215 of the first portion side 1221 and the fourth ground location 234 of the third portion side 1223 may correspond to the electrical length λ ₆2, or λ₆Odd multiples of/2. For example, the distance between the second grounding location 215 and the fourth grounding location 234 may be between 30 and 32mm, and particularly, the distance between the second grounding location 215 and the fourth grounding location 234 may be 30.5 mm. It can be seen that the distance between the second ground location 215 and the fourth ground location 234 can be relatively small.

The second feeding position 233, the second grounding position 215, and the fourth grounding position 234 are appropriately arranged, so that the first section side 1221 and the third section side 1223 can operate in different frequency bands. In the first aspect, the portion of the third partial side 1223 between the second feeding position 233 and the fourth grounding position 234 can be used for implementing the operating frequency band of the fourth antenna and the operating frequency band of the sixth antenna. In the second aspect, the portion of the first partial side 1221 between the second ground location 215 and the second end 212, the second slot 252, and the portion of the third partial side 1223 between the second feeding location 233 and the fifth end 231 may be used to implement the operating frequency band of the fifth antenna and the operating frequency band of the sixth antenna. Therefore, the antenna reuse rate is improved, and the occupied space of the rf structure 200 on the electronic device 100 is reduced.

As can be seen from the examples shown in fig. 13 to 19, the fourth antenna, the fifth antenna, and the sixth antenna may be logical 3 antennas, the 3 antennas may share the same physical structure, and the 3 antennas may not be simply divided into 3 different hardware structures. The fourth antenna, the fifth antenna, and the sixth antenna may be considered a second group of antennas. That is, the second group of antennas provided in the embodiments of the present application can implement a relatively wide bandwidth through multiplexing of physical structures.

Fig. 20 shows the return loss of the first set of antennas described above, along with a smith chart. With reference to fig. 9 to 12, the first group of antennas can achieve relatively low return loss within 5 to 6GHz (for example, at 5.02GHz, the return loss of the second group of antennas can be-4.769 dB, and at 5.67GHz, the return loss of the second group of antennas can be-5.378 dB), and have relatively good antenna performance.

Fig. 21 shows the return loss of the second set of antennas described above and a smith chart. With reference to fig. 15-18, the second group of antennas can achieve relatively low return loss within 5-6 GHz (for example, at 5.02GHz, the return loss of the second group of antennas can be-3.996 dB, and at 5.67GHz, the return loss of the second group of antennas can be-4.621 dB), and have relatively good antenna performance.

To improve the isolation between the first and second antennas, the distance between the first ground position 214 and the second ground position 215 of the first part side 1221 may be greater than a predetermined distance (e.g., the predetermined distance may be 6-8 mm). For example, the distance between the first grounding location 214 and the second grounding location 215 may be 8-8.5 mm, and particularly, the distance between the first grounding location 214 and the second grounding location 215 may be about 8.2 mm. It can be seen that the second ground location 215 is not only used to implement the rf functionality of the second set of antennas, but also to improve the isolation between the first and second sets of antennas. This makes the multiplexing rate of the rf structure 200 relatively high, which is beneficial to reduce the occupied space of the rf structure 200 in the electronic device 100.

Fig. 22 shows the isolation between the first set of antennas shown in fig. 7 to 12 and the second set of antennas shown in fig. 13 to 19 in different frequency bands. It can be seen that the rf structures 200 shown in fig. 6 to 19 have relatively good isolation in the frequency band of 1.5 to 6GHz (for example, less than-15 dB; specifically, at 2.4GHz, the isolation between the first group of antennas and the second group of antennas may be-16.96 dB; and at 5.95GHz, the isolation between the first group of antennas and the second group of antennas may be-18.65 dB).

Fig. 23 shows the directional distribution of the current excited by the first and second antenna groups. Specifically, when the first group of antennas operates at 5.0 to 5.35GHz and 5.35 to 5.75GHz, the direction of current excited by the first group of antennas is mainly the same as the extending direction (also referred to as the longitudinal direction) of the first part side 1221 (or the second part side 1222 and the third part side 1223); when the second group of antennas operates at 5.0 to 5.35GHz and 5.35 to 5.75GHz, the direction of current excited by the second group of antennas is mainly perpendicular to the extending direction of the first part side 1221 (or the second part side 1222 and the third part side 1223) (that is, the direction of current excited by the second group of antennas is mainly the same as the transverse direction of the first part side 1221). Due to the fact that the current directions are different, the directional patterns which can be achieved by the first group of antennas and the second group of antennas are different.

Fig. 24 shows the patterns that can be achieved by the first and second groups of antennas with respect to the side frame 122. Specifically, when the first group of antennas works at 5.0-5.35 GHz, the main radiation direction of the first group of antennas is approximately towards the left; when the first group of antennas works at 5.35-5.75 GHz, the main radiation directions of the first group of antennas are approximately towards the left and the right; when the second group of antennas works at 5.0-5.35 GHz, the radiation direction of the second group of antennas is approximately downward; when the second group of antennas work at 5.35-5.75 GHz, the radiation direction of the second group of antennas is approximately downward.

Fig. 25 shows the patterns of the first and second antennas in the horizontal and vertical polarization directions. As can be seen from fig. 25, the radiation high point of the first group of antennas in the horizontal polarization direction is mainly located in the fourth quadrant (relatively lighter area in the cloud) of the X-Y coordinate system, and the radiation high point of the first group of antennas in the vertical polarization direction is mainly located in the second quadrant of the X-Y coordinate system; the radiation high points of the second group of antennas in the horizontal polarization direction are mainly positioned between the first quadrant and the second quadrant of the X-Y coordinate system, and the radiation high points of the second group of antennas in the vertical polarization direction are mainly positioned between the first quadrant and the second quadrant of the X-Y coordinate system.

Fig. 26 shows the first set of antennas, the second set of antennas, and the planar pattern of the rf structure 200 described above. As can be seen in fig. 26, the patterns of the first set of antennas may be complementary (or orthogonal) to the patterns of the second set of antennas. For example, a radiating low point of a first group of antennas may correspond to a radiating high point of a second group of antennas, and a radiating high point of the first group of antennas may correspond to a radiating low point of the second group of antennas. Thus, combining the planar pattern of the first set of antennas with the planar pattern of the second set of antennas results in a planar pattern of rf structure 200 that may be relatively more circular, i.e., rf structure 200 may not have a significant radiating low point and rf structure 200 may have relatively good data transmission performance over a 360 ° range.

According to the directional diagrams shown in fig. 24 to fig. 26, the first group of antennas and the second group of antennas may have relatively complementary radiation directions, which is beneficial to improve the overall antenna performance of the rf structure 200, and is further beneficial to improve the data transmission efficiency of the rf structure 200.

In addition, the distance between the rf structure 200 and the rf chip 150 provided in the embodiment of the present application may be relatively short, and the rf structure 200 may be disposed on the housing of the electronic device 100, so that the rf structure 200 may have a relatively low insertion loss. In addition, the radio frequency structure 200 provided by the embodiment of the application can be arranged near the key and the camera module, so that the frequency of the user touching the radio frequency structure 200 is reduced, and the antenna performance of the radio frequency structure 200 in actual work is improved.

Fig. 27 shows another possible implementation of the rf structure 200 shown in fig. 5 disposed on the side frame 122 shown in fig. 1, 2, and 4. Similar to the example shown in fig. 6, the side frame 122 may include a first portion side 1221 corresponding to the first antenna radiator 210, a second portion side 1222 corresponding to the second antenna radiator 220, and a third portion side 1223 corresponding to the third antenna radiator 230.

The following describes the radio frequency principle of the radio frequency structure 200 provided in the embodiment of the present application, by taking the example shown in fig. 27 as an example, and combining fig. 28 to fig. 33. It will be appreciated that the radio frequency principles described in figures 28 to 33 may be applied to the example shown in figure 5 in addition to the example shown in figure 27.

As shown in fig. 28, the rf signal from the first feeding port 151 may be sequentially conducted to the back cover 121 (ground) through the first feeding position 213 and the first grounding position 214 of the first partial side 1221 (which may be regarded as the first antenna radiator 210 shown in fig. 5). Also, radio frequency signals from the first feed port 151 may propagate through the first feed location 213 towards the first end 211 of the first section side 1221. The radio frequency structure 200 may thus comprise a first antenna, which may be formed by the first feed port 151 and the portion of the first portion side 1221 between the first end 211 and the first ground location 214. The first antenna may belong to an Inverted F Antenna (IFA).

The direction of the current flow of the first antenna is shown by the dashed arrow in fig. 28. The direction of the current flowing between the first end 211 and the first ground location 214 of the first portion side 1221 may be substantially the same. That is, the current direction of the first part side 1221 between the first end 211 and the first feeding position 213 and the current direction of the first part side 1221 between the first feeding position 213 and the first grounding position 214 may be substantially the same.

The first antenna may operate in the 1/4 wavelength mode. The working frequency band of the first antenna may correspond to a first target resonance wavelength λ₁. In some possible examples, λ₁The corresponding frequency band may be, for example, 2.38 to 2.45 GHz. Thus, the first antenna may be a WiFi 2.4G antenna or a bluetooth antenna.

The distance between the first end 211 and the first ground location 214 may correspond to an electrical length λ₁/4, or λ₁Odd multiples of/4. For example, the distance between the first end 211 and the first ground position 214 may be between 20 and 24mm, and particularly, the distance between the first feeding position 213 and the first ground position 214 may be 22 mm. In thatIn one possible implementation, the distance between the first end 211 and the first feeding position 213 may be 15-17 mm, and the distance between the first feeding position 213 and the first grounding position 214 may be 5-7 mm.

As shown in fig. 29, the rf signal from the first feeding port 151 may be sequentially conducted to the rear cover 121 (ground) through the first feeding position 213, the first end 211, the first slot 251 of the first portion side 1221, the fourth end 222 of the second portion side 1222 (which may be regarded as the second antenna radiator 220 shown in fig. 5), and the third ground position 223. That is, the first terminal 211 can couple rf signals to the fourth terminal 222. The radio frequency structure 200 may thus comprise a second antenna, which may be formed by the first feed port 151, the portion of the first part side 1221 between the first feed location 213 and the first end 211, the first slot 251, and the portion of the second part side 1222 between the fourth end 222 and the third ground location 223. The second antenna may belong to a parasitic antenna.

The direction of the current flow of the second antenna is shown by the dashed arrow in fig. 29. Wherein the direction of current flow on the second portion side 1222 may be substantially uniform.

The operating mode of the second antenna may be a parasitic mode. The working frequency band of the second antenna may correspond to a second target resonant wavelength λ₂. In some possible examples, λ₂The corresponding frequency band may be, for example, 5.0 to 5.35 GHz. Thus, the second antenna may be a WiFi 5G antenna.

The distance between the third ground location 223 and the fourth end 222 of the second portion side 1222 may correspond to an electrical length λ₂/4, or λ₂Odd multiples of/4. For example, the distance between the third grounding location 223 and the fourth end 222 can be between 4-6 mm, and particularly, the distance between the third grounding location 223 and the fourth end 222 can be 5 mm.

As shown in fig. 30, the rf signal from the first feeding port 151 may be sequentially conducted to the back cover 121 (ground) through the first feeding position 213 and the first end 211 of the first partial side 1221, the first slot 251, the fourth end 222 of the second partial side 1222, and the third grounding position 223, and the rf signal from the first feeding port 151 may be sequentially conducted to the back cover 121 (ground) through the first feeding position 213 and the first grounding position 214 of the first partial side 1221. That is, the first terminal 211 can couple rf signals to the fourth terminal 222. The radio frequency structure 200 may thus comprise a third antenna, which may be formed by the first feed port 151, the portion of the first portion side 1221 between the first ground location 214 and the first end 211, the first slot 251, and the portion of the second portion side 1222 between the fourth end 222 and the third ground location 223. The third antenna may belong to a combination of an inverted-F antenna and a parasitic antenna.

The direction of the current flow of the third antenna is shown by the dashed arrow in fig. 30. Wherein the direction of the current flow between the first end 211 and the first feeding location 213 of the first part side 1221 may be substantially opposite to the direction of the current flow on the second part side 1222; the direction of current flow of the first portion side 1221 between the first feeding location 213 and the first ground location 214 may be substantially opposite to the direction of current flow of the first portion side 1221 between the first end 211 and the first feeding location 213.

The third antenna may operate in 3/4 wavelength mode. The working frequency band of the third antenna can correspond to a third target resonant wavelength lambda₃. The operating frequency band of the third antenna may be closer to but different from the operating frequency band of the second antenna. In some possible examples, λ₃The corresponding frequency band may be, for example, 5.35 to 5.75 GHz. Thus, the third antenna may be a WiFi 5G antenna.

As can be seen from the above, the distance between the third ground location 223 of the second portion side 1222 and the first ground location 214 of the first portion side 1221 may correspond to an electrical length of 3 λ₃/4, or 3 λ₃Odd multiples of/4. For example, the distance between the first grounding location 214 and the third grounding location 223 may be between 27mm and 30mm, and particularly, the distance between the first grounding location 214 and the third grounding location 223 may be 28.5 mm.

In summary, the portion of the first partial side 1221 between the first end 211 and the first grounding location 214 may be used to implement the working frequency band of the first antenna and the working frequency band of the third antenna; the portion of the first partial side 1221 between the first feeding position 213 and the first end 211, the first slot 251, and the portion of the second partial side 1222 between the third grounding position 223 and the fourth end 222 may be used to implement the operating frequency band of the second antenna and the operating frequency band of the third antenna. Therefore, the antenna reuse rate is improved, and the occupied space of the rf structure 200 on the electronic device 100 is reduced. The first antenna, the second antenna, and the third antenna may be considered a first group of antennas.

As shown in fig. 31, the rf signal from the second feeding port 152 may be sequentially conducted to the rear cover 121 (ground) through the second feeding position 233 and the fourth grounding position 234 of the third partial side 1223 (which may be regarded as the third antenna radiator 230 shown in fig. 5); also, the rf signal from the second feeding port 152 can be conducted to the fifth end 231 of the third portion side 1223 through the second feeding position 233 of the third portion side 1223. The radio frequency structure 200 may thus comprise a fourth antenna, which may be formed by the second feed port 152, the part of the third partial side 1223 between the fifth end 231 and the fourth ground location 234. The fourth antenna may belong to an inverted-F antenna.

The direction of the current flow of the fourth antenna is shown by the dashed arrow in fig. 31. The current flowing direction of the third partial side 1223 between the fifth end 231 and the second feeding position 233 may be substantially the same as the current flowing direction of the third partial side 1223 between the second feeding position 233 and the fourth grounding position 234.

The fourth antenna may operate in the 1/4 wavelength mode. The working frequency band of the fourth antenna may correspond to a fourth target resonant wavelength λ₄. In some possible examples, λ₄The corresponding frequency band may be, for example, 1.565 to 1.585 GHz. Thus, the fourth antenna may be a GPS antenna.

The distance between the fifth end 231 of the third portion side 1223 and the fourth ground location 234 may correspond to an electrical length λ₄/4, or λ₄Odd multiples of/4. For example, the distance between the fifth end 231 and the fourth grounding position 234 may be between 33 mm and 35mm, and particularly, the distance between the fifth end 231 and the fourth grounding position 234 may be 34 mm. In one possible implementation, the distance between the fifth end 231 and the second feeding position 233 may be between 25 and 27mm, and the distance between the second feeding position 233 and the fourth grounding position 234 may be between 7 and 9 mm.

As shown in fig. 32, the rf signal from the second feeding port 152 may pass through the second feeding position 233, the fifth end 231, the second slot 252, the second end 212 of the first partial side 1221, and the second grounding position 215 of the third partial side 1223 in sequence to reach the back cover 121 (ground). That is, the second terminal 212 can couple the rf signal to the fifth terminal 231. The radio frequency structure 200 may thus comprise a fifth antenna which may be formed by the second feed port 152, the part of the third part side 1223 between the second feed position 233 and the fifth end 231, the second slot 252, the part of the first part side 1221 between the second ground position 215 and the second end 212. The fifth antenna may belong to a parasitic antenna.

The direction of the current of the fifth antenna is shown by the dashed arrow in fig. 32. The current flowing in the third partial side 1223 between the fifth end 231 and the second feeding position 233 may be substantially the same.

The operating mode of the fifth antenna may be a parasitic mode. The working frequency band of the fifth antenna may correspond to a fifth target resonance wavelength λ₅. In some possible examples, λ₅The corresponding frequency band may be, for example, 5.0 to 5.35 GHz. Thus, the fifth antenna may be a WiFi 5G antenna.

The distance between the second ground location 215 and the second end 212 of the first portion side 1221 may correspond to an electrical length λ₅/4, or λ₅Odd multiples of/4. For example, the distance between the second grounding position 215 and the second end 212 may be between 4 and 6mm, and particularly, the distance between the second grounding position 215 and the second end 212 may be 5 mm.

As shown in fig. 33, the rf signal from the second feeding port 152 may be conducted to the rear cover 121 (ground) through the second feeding position 233 and the fourth grounding position 234 of the third partial side 1223 in sequence; and, the rf signal from the second feeding port 152 may be conducted to the back cover 121 (ground) through the second feeding position 233, the fifth end 231, the second slot 252, the second end 212 of the first partial side 1221, and the second ground position 215 of the third partial side 1223 in sequence. That is, the second terminal 212 can couple the rf signal to the fifth terminal 231. The radio frequency structure 200 may thus comprise a sixth antenna, which may be formed by the second feed port 152, the portion of the first portion side 1221 between the second ground location 215 and the second end 212, the second slot 252, and the portion of the third portion side 1223 between the fifth end 231 and the fourth ground location 234. The sixth antenna may belong to a combination of an inverted-F antenna and a parasitic antenna.

The direction of the current of the sixth antenna is shown by the dotted arrow in fig. 33. The direction of current flow between the second ground location 215 and the second end 212 of the first portion side 1221 may be substantially opposite to the direction of current flow between the fifth end 231 and the second feed location 233 of the third portion side 1223. The direction of the current of the third partial side 1223 between the fifth end 231 and the second feeding position 233 may be substantially opposite to the direction of the current of the third partial side 1223 between the second feeding position 233 and the fourth grounding position 234.

The sixth antenna may operate in 3/4 wavelength mode. The working frequency band of the sixth antenna may correspond to a sixth target resonance wavelength λ₆. The operating frequency band of the fifth antenna may be closer to but different from the operating frequency band of the sixth antenna. In some possible examples, λ₆The corresponding frequency band may be, for example, 5.35 to 5.75 GHz. Thus, the sixth antenna may be a WiFi 5G antenna.

As can be seen from the above, the distance between the second ground location 215 of the first portion side 1221 and the fourth ground location 234 of the third portion side 1223 may correspond to an electrical length of 3 λ₆/4, or 3 λ₆Odd multiples of/4. For example, the distance between the second ground location 215 and the fourth ground location 234 may be between 38-42 mm, in particular, the distance between the second grounding location 215 and the fourth grounding location 234 may be 40.5 mm.

In summary, the portion of the third partial side 1223 between the fifth end 231 and the fourth grounding location 234 can be used to implement the operating frequency band of the fourth antenna and the operating frequency band of the sixth antenna. The portion of the first partial side 1221 between the second ground location 215 and the second end 212, the second slot 252, and the portion of the third partial side 1223 between the second feeding location 233 and the fifth end 231 may be used to implement the operating frequency band of the fifth antenna and the operating frequency band of the sixth antenna. Therefore, the antenna reuse rate is improved, and the occupied space of the rf structure 200 on the electronic device 100 is reduced. The fourth antenna, the fifth antenna, and the sixth antenna may be considered a second group of antennas.

The examples shown in fig. 27 to 33 employ antenna radiators of relatively larger size than the examples shown in fig. 9 to 17, and thus may occupy more space of the electronic device 100. From the simulation results, it was found that the antenna performance of the sixth antenna shown in fig. 33 is inferior to that of the sixth antenna shown in fig. 17.

Fig. 34 is an electronic device 100 according to an embodiment of the present application, which includes a first rf structure 200, a second rf structure 200, and an rf chip 150. The rf chip 150 may be, for example, a chip supporting 4 × 4WiFi MIMO, or a chip supporting 4 × 4WiFi 5G MIMO and 2 × 2WiFi 2.4G MIMO.

The first rf structure 200 and the second rf structure 200 may have similar structures. The first radio frequency structure 200 may include the first antenna radiator 210, the second antenna radiator 220, and the third antenna radiator 230 shown in fig. 5. The second rf structure 200 may include a fourth antenna radiator, a fifth antenna radiator, and a sixth antenna radiator. The fifth antenna radiator may be relatively closer to the first antenna radiator than the sixth antenna radiator.

The detailed structure of the fourth antenna radiator (including the feed position, the ground position) may be similar to the first antenna radiator 210 shown in fig. 5. The fourth antenna radiator may include a seventh end and an eighth end, the seventh end may correspond to the first end 211 shown in fig. 5, and the eighth end may correspond to the second end 212 shown in fig. 5. The fourth antenna radiator may include a third feed location, a fifth ground location, and a sixth ground location. The third feeding position may correspond to the first feeding position 213 shown in fig. 5. The fifth grounding location may correspond to the first grounding location 214 shown in fig. 5. The sixth grounding location may correspond to the second grounding location 215 shown in fig. 5.

The specific structure of the fifth antenna radiator (including the feed position, the ground position) may be similar to the second antenna radiator 220 shown in fig. 5. The fifth antenna radiator may include a ninth end and a tenth end, the ninth end may correspond to the third end 221 shown in fig. 5, and the tenth end may correspond to the fourth end 222 shown in fig. 5. The fifth antenna radiator may include a seventh ground location. The seventh grounding location may correspond to the third grounding location 223 shown in fig. 5.

The specific structure of the sixth antenna radiator (including the feed position, the ground position) may be similar to the third antenna radiator 230 shown in fig. 5. The sixth antenna radiator may include an eleventh end and a twelfth end, the eleventh end may correspond to the fifth end 231 shown in fig. 5, and the twelfth end may correspond to the sixth end 232 shown in fig. 5. The sixth antenna radiator may include a fourth feed location, an eighth ground location. The fourth feeding position may correspond to the second feeding position 233 shown in fig. 5. The sixth grounding location may correspond to the fourth grounding location 234 shown in fig. 5.

The rf chip 150 may include a first feeding port 151, a second feeding port 152, a third feeding port 153, and a fourth feeding port 154. Referring to fig. 5 and 34, the first feeding port 151 may be electrically connected to the first feeding position 213 of the first antenna radiator 210, the second feeding port 152 may be electrically connected to the second feeding position 233 of the third antenna radiator 230, the third feeding port 153 may be electrically connected to the third feeding position of the fourth antenna radiator, and the fourth feeding port 154 may be electrically connected to the fourth feeding position of the sixth antenna radiator. The first ground location 214 of the first antenna radiator 210, the second ground location 215 of the first antenna radiator 210, the third ground location 223 of the second antenna radiator 220, the fourth ground location 234 of the third antenna radiator 230, the fifth ground location of the fourth antenna radiator, the sixth ground location of the fourth antenna radiator, the seventh ground location of the fifth antenna radiator, and the eighth ground location of the sixth antenna radiator may all be grounded.

In the example shown in fig. 34, the first antenna radiator 210, the second antenna radiator 220, and the third antenna radiator 230 may be disposed on a first side 1224 of the electronic device 100, the fourth antenna radiator, the fifth antenna radiator, and the sixth antenna radiator may be disposed on a second side 1225 of the electronic device 100, and the first side 1224 and the second side 1225 may be two different sides. In other examples, the first side 1224 and the second side 1225 can be the same side. The first antenna radiator 210 to the sixth antenna radiator are arranged on two side edges, which is beneficial to realizing the complementary directional diagrams on the 2.45GHz frequency band.

The antenna radiator shown in fig. 5 may be formed on the metal frame, as shown in fig. 6 and 27. The antenna radiator shown in fig. 5 may also be implemented by a Metal Device Antenna (MDA), a Flexible Printed Circuit (FPC), a Laser Direct Structuring (LDS), and the like.

The distance between the rf structure 200 and the rf chip 150 provided in the embodiment of the present application may be relatively short, and the rf structure 200 may be disposed on the housing of the electronic device 100, so that the rf structure 200 may have relatively low insertion loss. In addition, the radio frequency structure 200 provided by the embodiment of the application can be arranged near the key and the camera module, so that the frequency of the user touching the radio frequency structure 200 is reduced, and the antenna performance of the radio frequency structure 200 in actual work is improved. The radio frequency structure 200 provided in the embodiment of the present application may have relatively excellent isolation, relatively low return loss, and may also form a plurality of mutually complementary radiation directions, so the radio frequency structure 200 provided in the embodiment of the present application may have relatively excellent antenna performance, and is further favorable to implementing relatively excellent data transmission performance.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (22)

1. A radio frequency structure, comprising:

the radio frequency chip comprises a first radio frequency port and a second radio frequency port;

the first antenna radiator is electrically connected with the first radio frequency port at a first feeding position, the first antenna radiator is grounded at a first grounding position and a second grounding position, and the first grounding position is positioned between the first feeding position and the second grounding position;

one end of the second antenna radiator is coupled with the first end of the first antenna radiator for feeding, the first end is positioned on one side of the first feeding position far away from the first grounding position, and the second antenna radiator is grounded at a third grounding position;

one end of the third antenna radiator is coupled with the second end of the first antenna radiator for feeding, the second end is positioned on one side, far away from the first grounding position, of the second grounding position, the third antenna radiator is electrically connected with the second radio frequency port at the second feeding position, the third antenna radiator is grounded at a fourth grounding position, and the fourth grounding position is positioned on one side, far away from the first antenna radiator, of the second feeding position; wherein the content of the first and second substances,

the first radio frequency port, the first portion of the first antenna radiator, and the second antenna radiator form a first antenna whose operating frequency band is a first frequency band, the first radio frequency port, the second portion of the first antenna radiator, and the second antenna radiator form a second antenna whose operating frequency band is a second frequency band, the first radio frequency port, the first portion, the second portion, and the second antenna radiator form a third antenna whose operating frequency band is a third frequency band, the first portion includes a portion of the first antenna radiator between the first feeding position and the first grounding position, and the second portion includes a portion of the first antenna radiator between the first end and the first feeding position;

the second radio frequency port and the third part of the third antenna radiator form a fourth antenna with a fourth working frequency band, the second radio frequency port, the fourth part of the third antenna radiator and the fifth part of the first antenna radiator form a fifth antenna with a fifth working frequency band, the second radio frequency port, the third part, the fourth part and the fifth part of the first antenna radiator form a sixth antenna with a sixth working frequency band, the third portion and the fourth portion are respectively located on two sides of the second feeding position, the third portion includes a portion of the third antenna radiator between the second feeding position and the fourth ground position, the fifth portion includes a portion of the first antenna radiator between the second ground location and the second end.

2. The radio frequency structure of claim 1, wherein the first antenna is a left-handed antenna.

3. The radio frequency structure of claim 2, wherein the first antenna corresponds to an electrical length λ₁Odd multiples of/8, λ₁Corresponding to the first frequency band.

4. A radio frequency structure according to claim 2 or 3, characterized in that the second antenna corresponds to an electrical length λ₂Odd multiples of/4, λ₂Corresponding to the second frequency band.

5. According toThe radio frequency structure of claim 2 or 3, characterized in that the third antenna corresponds to an electrical length λ₃Odd multiple of/2, λ₃Corresponding to the third frequency band.

6. A radio frequency structure according to any of claims 1 to 3, characterized in that the fourth antenna is a left-handed antenna.

7. The radio frequency structure according to claim 6, wherein the fourth antenna corresponds to an electrical length λ₄Odd multiples of/8, λ₄Corresponding to the fourth frequency band.

8. The radio frequency structure according to claim 6, wherein the fifth antenna corresponds to an electrical length λ₅Odd multiples of/4, λ₅Corresponding to the fifth frequency band.

9. The radio frequency structure according to claim 6, wherein the sixth antenna corresponds to an electrical length λ₆Odd multiple of/2, λ₆Corresponding to the sixth frequency band.

10. The radio frequency structure of claim 1, wherein the first antenna is an inverted-F antenna, and wherein the first portion further comprises a portion of the first antenna radiator between the first end and the first feed location.

11. The radio frequency structure of claim 10, wherein the first antenna corresponds to an electrical length λ₁Odd multiples of/4, λ₁Corresponding to the first frequency band.

12. The radio frequency structure according to claim 10 or 11, wherein the third antenna corresponds to an electrical length of 3 λ₃Odd multiples of/4, λ₃Corresponding to the third frequency band.

13. The radio frequency structure according to claim 10 or 11, wherein the fourth antenna is an inverted-F antenna, and the third portion further comprises the fourth portion.

14. The radio frequency structure of claim 13, wherein the fourth antenna corresponds to an electrical length λ₄Odd multiples of/4, λ₄Corresponding to the fourth frequency band.

15. The radio frequency structure of claim 13, wherein the sixth antenna corresponds to an electrical length of 3 λ₆Odd multiples of/4, λ₆Corresponding to the sixth frequency band.

16. The radio frequency structure according to any one of claims 1 to 3, 7 to 11, 14, 15, wherein a distance between the first ground location and the second ground location is greater than a preset spacing.

17. The radio frequency structure according to any one of claims 1 to 3, 7 to 11, 14, 15,

the second frequency band is different from the third frequency band, the difference value between the second frequency band and the third frequency band is smaller than a preset frequency, the second frequency band is the same as the fifth frequency band, and the third frequency band is the same as the sixth frequency band.

18. The radio frequency architecture of any one of claims 1 to 3, 7 to 11, 14, 15, wherein the radio frequency chip is a 2 x 2WiFi multiple input multiple output MIMO chip or a 4 x 4WiFi MIMO chip.

19. An electronic device, comprising: the radio frequency structure of any one of claims 1 to 18.

20. An electronic device, comprising:

the radio frequency chip comprises a first radio frequency port and a second radio frequency port;

a first partial side electrically connected to the first rf port at a first feeding position, the first partial side being grounded at a first grounding position and a second grounding position, the first grounding position being located between the first feeding position and the second grounding position;

a second partial side, one end of the second partial side being coupled to a first end of the first partial side, the first end being located on a side of the first feeding position away from the first grounding position, the second partial side being grounded at a third grounding position;

a third portion side, one end of the third portion side being coupled to a second end of the first portion side, the second end being located on a side of the second ground position away from the first ground position, the third portion side being electrically connected to the second rf port at a second feed position, the third portion side being grounded at a fourth ground position, the fourth ground position being located on a side of the second feed position away from the first portion side; wherein the content of the first and second substances,

the first part side edge, the second part side edge and the third part side edge are positioned on a first side edge of the electronic equipment;

the first radio frequency port, a first part of a side edge of the first part form a first antenna with a first working frequency band, the first radio frequency port, a second part of the side edge of the first part, and a second part of the side edge of the second part form a second antenna with a second working frequency band, the first radio frequency port, the first part, the second part, and the second part side edge form a third antenna with a third working frequency band, the first part comprises a part of the side edge of the first part between the first feeding position and the first grounding position, and the second part comprises a part of the side edge of the first part between the first end and the first feeding position;

the second radio frequency port, the third part of the third part side edge form a fourth antenna with a fourth working frequency band, the second radio frequency port, the fourth part of the third part side edge and the fifth part of the first part side edge form a fifth antenna with a fifth working frequency band, the second radio frequency port, the third part, the fourth part and the fifth part of the first part side edge form a sixth antenna with a sixth working frequency band, the third part and the fourth part are respectively positioned on two sides of the second feeding position, the third part comprises a part of the third part side edge between the second feeding position and the fourth grounding position, and the fifth part comprises a part of the first part side edge between the second grounding position and the second end.

21. The electronic device of claim 20, wherein the first portion side, the second portion side, and the third portion side are located between the camera module and the key.

22. The electronic device of claim 20 or 21, wherein the radio frequency chip is a 2 x 2WiFi Multiple Input Multiple Output (MIMO) chip or a 4 x 4WiFi MIMO chip.

Images