Antenna unit and electronics

Abstract

The present application provides an antenna unit and an electronic device. The antenna unit includes: a first radiator, a second radiator, a first transmission line and a first feed source. Both ends of the first radiator and the second radiator are open ends, and the electrical length of the first radiator and the second radiator is greater than or equal to 1 / 2 of the first wavelength. The first radiator has a first feeding point and a first grounding point set at intervals, and the second radiator has a second feeding point and a second grounding point set at intervals. The first grounding point is located in the middle of the first radiator, and the second grounding point is located in the middle of the second radiator. The first transmission line is electrically connected to the first feed source, and the two ends of the first transmission line are electrically connected to the first feeding point and the second feeding point respectively, for inputting a first radio frequency signal of the same frequency band to the first feeding point and the second feeding point. As a result, the electronic device meets the requirements of an ultra-thin design with a thickness greater than or equal to 5 mm and an extreme design with a screen-to-body ratio greater than or equal to 100%, thereby improving the user experience.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to an antenna unit and an electronic device. Background Art

[0002] With the development of key technologies such as curved and flexible screens, thinness and extreme screen-to-body ratios have become a design trend in electronic devices. However, this design significantly compresses the space available for antennas. Furthermore, the increasing size of components such as batteries in electronic devices further reduces the space available for antenna layout, making it difficult for existing antennas to meet the performance requirements of communication frequency bands. Therefore, how to achieve a screen-to-body ratio of 100% or greater while ensuring good antenna radiation performance is an urgent problem that needs to be solved. Summary of the Invention

[0003] The present application provides an antenna unit and an electronic device. On the basis of the antenna unit having good radiation performance, it ensures that the electronic device including the antenna unit has an extreme screen-to-body ratio greater than or equal to 100%, thereby improving the user experience.

[0004] In the first aspect, the present application provides an antenna unit, comprising: a first radiator, a second radiator, a first transmission line and a first feed source; both ends of the first radiator are open ends, and the electrical length of the first radiator is greater than or equal to 1 / 2 of the first wavelength; both ends of the second radiator are open ends, and the electrical length of the second radiator is greater than or equal to 1 / 2 of the first wavelength, and the first wavelength is the wavelength corresponding to any frequency point in the working frequency band of the antenna unit; the first radiator has a first feeding point and a first grounding point arranged at intervals, the first feeding point is electrically connected to the first transmission line, and the first grounding point is located in the middle of the first radiator; the second radiator has a second feeding point and a second grounding point arranged at intervals, the second feeding point is electrically connected to the first transmission line, and the second grounding point is located in the middle of the second radiator; the first transmission line is electrically connected to the first feed source, and the first transmission line is used to input a first radio frequency signal of the same frequency band to the first feeding point and the second feeding point.

[0005] The antenna unit provided in the first aspect, by adopting a T-antenna radiator structure for both the first radiator and the second radiator, can be excited to generate a common mode (CM) mode in the same operating frequency band, and the corresponding signals generated by the first radiator and the second radiator in the CM mode can be complementary and enhanced, so that the signals generated by the first radiator and the second radiator in the CM mode can mutually excite each other. The first radiator and the second radiator can be excited to generate a differential mode (DM) mode in the same operating frequency band, and the corresponding signals generated by the first radiator and the second radiator in the DM mode can be complementary and enhanced, so that the signals generated by the first radiator and the second radiator in the DM mode can mutually excite each other, thereby improving the radiation performance of the antenna unit in the same resonant mode in the free space (FS) state and the left and right head and hand state, and broadening the operating frequency band of the antenna unit by increasing the number of resonant modes. As a result, not only can the electronic device including the above antenna unit meet various communication needs, but also the electronic device can meet the ultra-thin design of 5mm-10mm thickness and the ultimate design of greater than or equal to 100% screen-to-body ratio, which is beneficial to improving the user experience.

[0006] In one possible design, the distance between the first ground point and an end surface of one end of the first radiator is within a range of 1 / 5 to 3 / 10 of the first wavelength. For example, the first ground point is the midpoint of the first radiator. This ensures that the first radiator can form a T-antenna radiator structure.

[0007] In one possible design, the distance between the second ground point and the end surface of one end of the second radiator is within a range of 1 / 5 to 3 / 10 of the first wavelength. For example, the second ground point is the midpoint of the second radiator. This ensures that the second radiator can form a T-antenna radiator structure.

[0008] It should be noted that the distance between the first grounding point and the end face of the first end portion of the first radiator is difficult to be completely equal to 1 / 4 of the first wavelength. This structural error can be compensated by setting a matching circuit in the antenna unit and adjusting the matching circuit.

[0009] In one possible design, the first radiator and the second radiator both generate at least one type of resonance mode under the first radio frequency signal, and the first radiator and the second radiator generate the same type of resonance mode within the same operating frequency band, and the types of resonance modes include common mode mode and differential mode mode.

[0010] On the one hand, since both the first radiator and the second radiator adopt the radiator structure of the T antenna, the first radiator and the second radiator can both excite the CM mode in the same operating frequency band, so that the corresponding signals in the CM mode generated by the first radiator and the second radiator can be complementary enhanced, so that the signals generated by the first radiator and the second radiator in the CM mode can mutually excite each other.

[0011] On the other hand, based on the fact that both the first radiator and the second radiator adopt the radiator structure of T antenna, the first radiator and the second radiator can both excite DM mode in the same working frequency band, so that the corresponding signals in the DM mode generated by the first radiator and the second radiator can be complementary enhanced, so that the signals generated by the first radiator and the second radiator in the DM mode can excite each other.

[0012] Furthermore, the antenna unit's radiation performance in the same resonant mode in both the FS state and the left-right head-hand state is improved, and the operating frequency band of the antenna unit is broadened by increasing the number of resonant modes. This enables electronic devices incorporating the antenna unit to meet various communication needs.

[0013] In one possible design, the distance between the first radiator and the second radiator is greater than or equal to 1 / 4 of the first wavelength. This ensures that the first radiator and the second radiator can form a radiator structure of a distributed-feed T-antenna, resulting in the antenna unit having good radiation performance and being able to better meet the communication requirements of electronic devices.

[0014] In one possible design, both the first radiator and the second radiator are L-shaped. This satisfies the requirement that the antenna be located at the edge of the electronic device, enabling the antenna unit to have good radiation performance and a wide operating frequency band, meeting the communication requirements of the electronic device.

[0015] In one possible design, the first feed point is set at any location between the first ground point and the curved side of the first radiator, excluding the first ground point, and the second feed point is set at any location between the second ground point and the curved side of the second radiator, excluding the second ground point. Thus, when the electronic device is held in the hand, the antenna unit can still maintain good radiation performance, meeting the communication requirements of the electronic device.

[0016] In one possible design, the ratio of the electrical length of the first radiator to the electrical length of the second radiator is set within a range of 0.8 to 1.2. This facilitates the excitation of resonant modes by both the first and second radiators under RF signals in the same frequency band, ensuring that the first and second radiators can form a radiator structure of a distributed-feed T-antenna, resulting in good radiation performance for the antenna unit and better meeting the communication requirements of electronic devices.

[0017] In one possible design, when the electrical length of the first radiator is less than that of the second radiator, the first connection point formed by the electrical connection between the first transmission line and the first feed source is located at any position between the midpoint of the first transmission line and the end of the first transmission line on the side closest to the second radiator. This ensures that the first and second radiators excite the same type of resonant mode within the same frequency band, avoiding the influence of the feeding phase difference between the first and second radiators. This ensures that the antenna unit has good radiation performance and can better meet the communication requirements of electronic equipment.

[0018] In one possible design, a frequency band of the first radio frequency signal is in the range of 600 MHz to 1200 MHz.

[0019] In the second aspect, the present application provides an electronic device, comprising: a display screen, a shell, a battery and an antenna unit, the antenna unit being the antenna unit in the first aspect and any possible design of the first aspect; the display screen and the shell form a receiving cavity, and the antenna unit and the battery are arranged in the receiving cavity; the distance between the antenna unit and the display screen or the battery in a first direction is greater than or equal to 0.5 mm, the first direction is any one of the length direction of the electronic device, the width direction of the electronic device and the thickness direction of the electronic device, and the first radiator and the second radiator in the antenna unit are arranged left and right along the length direction of the electronic device; the thickness of the electronic device is in the range of 5 mm-10 mm.

[0020] Through the second aspect of the electronic device, the electronic device includes an antenna unit, and the antenna unit adopts a distributed fed T-antenna radiator structure, so that the antenna unit generates multiple resonant modes to achieve broadband coverage, ensuring that the antenna unit can normally transmit and receive electromagnetic wave signals, and the antenna unit has good radiation performance in the FS state, the beside head and lighthand (BHHL) state, and the beside head and right hand (BHHR) state, which is conducive to improving the radiation efficiency of the antenna unit, so that the electronic device including the antenna unit can meet various communication needs, and also enables different radiators in the antenna unit to excite corresponding signal complementary enhancement in the common mode in the same working frequency band, and also enables different radiators in the antenna unit to excite corresponding signal complementary enhancement in the differential mode in the same working frequency band, thereby improving the radiation performance of the antenna unit in the same resonant mode in the free space state and the left and right head and hand states, and the increase in the number of resonant modes broadens the working frequency band of the antenna unit. Therefore, not only can the electronic device including the antenna unit meet various communication needs, but the electronic device can also meet the ultra-thin design of greater than or equal to 5mm thickness and the ultimate design of greater than or equal to 100% screen-to-body ratio, which is beneficial to improving the user experience.

[0021] In one possible design, the screen-to-body ratio of the electronic device is greater than or equal to 100%, thereby providing users with an ultimate experience with a screen-to-body ratio greater than or equal to 100%, which is beneficial to improving the user experience.

[0022] In a possible design, the thickness of the electronic device is within the range of 5 mm to 6 mm. Thus, providing users with electronic devices with an ultra-thin design is beneficial to improving the user experience.

[0023] In one possible design, the antenna unit is disposed in and / or on the housing, thereby providing multiple possible position options for the antenna unit and enriching the design of the antenna unit.

[0024] In one possible design, the battery has a recessed area that includes at least the area where the antenna unit projects onto the battery along a first direction. This prevents the battery from affecting the antenna unit's radiation performance, improving battery capacity and maintaining the electronic device's long-term use. It also reduces the overall thickness of the electronic device, providing users with an electronic device with a screen-to-body ratio greater than or equal to 100%, enhancing the user experience.

[0025] In one possible design, the distance between the first radiator and the first side of the display screen in the first direction is greater than or equal to 0.5 mm, and the distance between the second radiator and the second side of the display screen in the first direction is greater than or equal to 0.5 mm. The first side of the display screen and the second side of the display screen are non-adjacent sides of the display screen along the length of the electronic device. This prevents the display screen from affecting the radiation performance of the antenna unit, reduces the overall thickness of the electronic device, and provides users with an electronic device with a screen-to-body ratio greater than or equal to 100%, thereby improving the user experience.

[0026] In one possible design, conductive components in an electronic device that may affect the performance of the antenna unit, such as a camera assembly, a shielding cover, a radio frequency front end, a printed circuit board, etc., can be arranged so that the height of the area close to the antenna unit in the thickness direction of the electronic device is smaller than the height of the remaining area of ​​the conductive component in the thickness direction of the electronic device.

[0027] The beneficial effects of the electronic device provided in the above-mentioned second aspect and each possible design of the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and each possible implementation method of the first aspect, and will not be repeated here.

[0028] In a third aspect, the present application provides an electronic device comprising: a display screen, a housing, a battery and an antenna unit; the antenna unit comprises: a third radiator, a fourth radiator, a second transmission line and a second feed source; the electrical length of the third radiator is greater than or equal to 1 / 4 of the second wavelength, the electrical length of the fourth radiator is greater than or equal to 1 / 2 of the second wavelength, the second wavelength is the wavelength corresponding to any frequency point in the working frequency band of the antenna unit, the third radiator comprises a first end and a second end, the fourth radiator comprises a first end and a second end; the first end of the third radiator is arranged close to the first end of the fourth radiator, the second end of the third radiator is arranged away from the first end of the fourth radiator, a gap greater than 0 and less than or equal to 10 mm is formed between the first end of the third radiator and the first end of the fourth radiator, the second end of the third radiator, the first end of the fourth radiator and the second end of the fourth radiator are all open ends; the third radiator comprises a third feeding point and a third grounding point arranged at intervals. , the third grounding point is located at the first end of the third radiator, the third feeding point is arranged near the third grounding point, and the third feeding point is electrically connected to the second transmission line; the fourth radiator includes a fourth feeding point and a fourth grounding point arranged at intervals, the fourth grounding point is located in the middle of the fourth radiator, the fourth feeding point is located between the first end of the fourth radiator and the fourth grounding point, and the fourth feeding point is electrically connected to the second transmission line; the second transmission line is electrically connected to the second feed source, and the second transmission line is used to input a first radio frequency signal of the same frequency band to the third feeding point and the fourth feeding point; the display screen and the shell form a receiving cavity, and the antenna unit and the battery are arranged in the receiving cavity of the shell; the screen-to-body ratio of the electronic device is greater than or equal to 100%; the distance between the antenna unit and the display screen or the battery in the first direction is greater than or equal to 0.5mm, and the first direction is arranged close to the edge of any one of the length direction, width direction and thickness direction of the electronic device; the thickness of the electronic device is in the range of 7mm-10mm.

[0029] The electronic device provided in the third aspect, through the inverted F antenna (IFA) and T antenna radiator structure, can excite the antenna unit to produce three resonant modes, thereby making the antenna unit have high system efficiency and wide frequency band bandwidth, whether in free space state or left-hand or right-hand state. In addition, the difference in system efficiency of the antenna unit in the left-hand or right-hand state is small, so that the antenna unit can better meet the communication requirements of the electronic device. The electronic device including the antenna unit can meet the ultra-thin design of 7mm-10mm thickness and the ultimate design of greater than or equal to 100% screen-to-body ratio, which is conducive to improving the user experience.

[0030] In one possible design, a frequency band of the first radio frequency signal is in the range of 600 MHz to 1200 MHz.

[0031] In a fourth aspect, the present application provides an electronic device comprising: a display screen, a housing, a battery and an antenna unit; the antenna unit comprises: a fifth radiator, a sixth radiator, a third transmission line and a third feed source; the electrical length of the fifth radiator is greater than or equal to 1 / 4 of the third wavelength, the electrical length of the sixth radiator is greater than or equal to 1 / 4 of the third wavelength, the third wavelength is the wavelength corresponding to any frequency point in the working frequency band of the antenna unit, the fifth radiator comprises a first end and a second end, the sixth radiator comprises a first end and a second end; the first end of the fifth radiator is arranged away from the first end of the sixth radiator, the second end of the fifth radiator is arranged close to the first end of the fourth radiator, a gap greater than 0 and less than or equal to 10 mm is formed between the second end of the fifth radiator and the first end of the sixth radiator, the second end of the fifth radiator and the second end of the sixth radiator are both open ends; the fifth radiator comprises a fifth feeding point and a sixth grounding point arranged at intervals, the fifth grounding point The fifth feeding point is located at the first end of the fifth radiator, the fifth feeding point is arranged near the second end of the fifth radiator, and the fifth feeding point is electrically connected to the third transmission line; the sixth radiator includes a sixth feeding point and a sixth grounding point arranged at intervals, the sixth grounding point is located at the first end of the fifth radiator, the sixth feeding point is located in the middle of the sixth radiator, and the sixth feeding point is electrically connected to the third transmission line; the third transmission line is electrically connected to the third feed source, and the third transmission line is used to input a second RF signal of the same frequency band to the fifth feeding point and the sixth feeding point; the display screen and the shell form a accommodating cavity, and the antenna unit and the battery are arranged in the accommodating cavity of the shell; the screen-to-body ratio of the electronic device is greater than or equal to 100%; the distance between the antenna unit and the display screen or the battery in the first direction is greater than or equal to 0.5mm, and the first direction is arranged close to the edge of any one of the length direction, width direction and thickness direction of the electronic device; the thickness of the electronic device is in the range of 7mm-10mm.

[0032] The electronic device provided in the fourth aspect, through the radiator structure of the composite right-hand and left-hand (CRLH) antenna and the IFA antenna, can excite two resonant modes in the antenna unit, thereby making the antenna unit have a high system efficiency and a wide frequency band bandwidth, whether in the free space state or the left-hand and right-hand state. In addition, the difference in the system efficiency of the antenna unit in the left-hand and right-hand state is small, so that the antenna unit can better meet the communication requirements of the electronic device. The electronic device including the antenna unit can meet the ultra-thin design of 7mm-10mm thickness and the ultimate design of greater than or equal to 100% screen-to-body ratio, which is conducive to improving the user experience.

[0033] In one possible design, the frequency band of the second radio frequency signal is in the range of 1700 MHz to 2700 MHz. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1A-1B A schematic diagram illustrating the common mode structure of a wire antenna provided in this application and the corresponding current and electric field distribution;

[0035] Figure 2A-2B A schematic diagram showing the structure of the differential mode of a wire antenna provided in this application and the corresponding current and electric field distribution;

[0036] Figure 3 A schematic plan view of an antenna provided in this application;

[0037] Figure 4 for Figure 3 A schematic diagram of the equivalent circuit of the antenna shown;

[0038] Figures 5A-5C A schematic structural diagram of an electronic device provided in one embodiment of the present application;

[0039] Figure 6 for Figure 5A An exploded view of a portion of the electronic equipment shown;

[0040] Figure 7A for Figure 5A or Figure 5B The schematic diagram of the structure of the electronic device shown is facing the Z direction;

[0041] Figure 7B for Figure 5A or Figure 5B The schematic diagram of the structure of the electronic device shown is a partial diagram of the structure facing the -Z direction after the back cover is removed;

[0042] Figure 7C for Figure 5C The schematic diagram of the structure of the electronic device shown is facing the Z direction;

[0043] Figure 7D for Figure 5C The schematic diagram of the structure of the electronic device shown is a partial diagram of the structure facing the -Z direction after the back cover is removed;

[0044] Figures 8A-8E A schematic structural diagram of an antenna unit provided in one embodiment of the present application;

[0045] Figure 9A for Figure 8A FIG. 1 is a schematic diagram of a curve of the return loss coefficient (S11) of the antenna unit in the FS state;

[0046] Figure 9B for Figure 8ASchematic diagram of the curves of the total efficiency and radiation efficiency of the antenna unit in the FS state;

[0047] Figure 9C for Figure 8A Schematic diagram of current distribution of the antenna unit in FS state;

[0048] Figures 10A-10C Schematic diagram of the structure of an antenna unit;

[0049] Figure 11A for Figure 8A The antenna unit shown, Figure 10A The antenna unit shown and Figure 10B Schematic diagram of curves of S11 of the antenna units shown in the FS state;

[0050] Figure 11B for Figure 8A The antenna unit shown, Figure 10A The antenna unit shown and Figure 10B Schematic diagram of the curves of the total efficiency and radiation efficiency of the antenna unit in the FS state;

[0051] Figure 12A for Figure 8A The antenna unit shown and Figure 10A Schematic diagram of the total efficiency curves of the antenna unit in the FS state, BHHL state, and BHHR state respectively;

[0052] Figure 12B for Figure 8A The antenna unit shown and Figure 10A Schematic diagram of the radiation efficiency curves of the antenna unit in the FS state, BHHL state, and BHHR state respectively;

[0053] Figure 13A The two-dimensional radiation pattern of the electronic device at resonance "1" or resonance "2" when phi = 90°;

[0054] Figure 13B The two-dimensional radiation pattern of the electronic device at resonance "1" or resonance "2" when theta = 90°;

[0055] Figure 13C The two-dimensional radiation pattern of the electronic device at resonance "3" or resonance "4" when phi = 90°;

[0056] Figure 13D The two-dimensional radiation pattern of the electronic device at resonance "3" or resonance "4" when theta = 90°;

[0057] Figure 14A The two-dimensional radiation pattern of the electronic device at resonance "5" (0.74 GHz) when phi = 90°;

[0058] Figure 14B is the two-dimensional radiation pattern of the electronic device at resonance “5” when theta = 90°;

[0059] Figure 14C The two-dimensional radiation pattern of the electronic device at resonance "6" (0.89 GHz) when phi = 90°;

[0060] Figure 14D The two-dimensional radiation pattern of the electronic device at resonance "6" when theta = 90°;

[0061] Figure 15A A schematic diagram of a stepped battery provided in one embodiment of the present application;

[0062] Figure 15B A schematic diagram of the shape of a battery provided in one embodiment of the present application;

[0063] Figure 16 A schematic structural diagram of an antenna unit provided in one embodiment of the present application;

[0064] Figure 17A for Figure 16 FIG. 1 is a schematic diagram of a curve of the return loss coefficient (S11) of the antenna unit in the FS state;

[0065] Figure 17B for Figure 16 Schematic diagram of the total efficiency curve of the antenna unit in the FS state;

[0066] Figure 17C for Figure 16 Schematic diagram of the radiation efficiency curve of the antenna unit in the FS state;

[0067] Figures 18A-18C A schematic structural diagram of an antenna unit provided in one embodiment of the present application;

[0068] Figure 18D Schematic diagram of the structure of an antenna unit;

[0069] Figure 19A for Figure 18A Schematic diagrams of curves of return loss coefficient (S11) of the antenna unit shown, the antenna unit composed of the fifth radiator (i.e., CRLH antenna), and the antenna unit composed of the sixth radiator (i.e., IFA antenna) in the FS state;

[0070] Figure 19B for Figure 18ASchematic diagrams of total efficiency curves of the antenna unit shown, the antenna unit composed of the fifth radiator (i.e., CRLH antenna), and the antenna unit composed of the sixth radiator (i.e., IFA antenna) in the FS state;

[0071] Figure 19C for Figure 18A Schematic diagrams of curves of the radiation efficiency of the antenna unit shown, the antenna unit composed of the fifth radiator (ie, the CRLH antenna), and the antenna unit composed of the sixth radiator (ie, the IFA antenna) in the FS state.

[0072] Description of reference numerals:

[0073] 01 / 04—wire antenna; 02 / 05—middle position; 03 / 06—feeder line;

[0074] 1—Electronic device; 20—Display screen; L1—First side of the display screen; L2—Second side of the display screen; 30—Case; 31—Frame; 32—Back cover; L3—First side of the case; L4—Second side of the case; 40—Battery; 50—Camera assembly;

[0075] 10—antenna unit; 101—first radiator; 102—second radiator; 103—first transmission line; 104—first feed source; 1011—first end of the first radiator; 1012—second end of the first radiator; 1021—first end of the second radiator; 1022—second end of the second radiator; A1—first feeding point; B1—first grounding point; A2—second feeding point; B2—second grounding point; D1—first slot; D2—second slot; C1—first connection point;

[0076] 104—third radiator; 105—fourth radiator; 106—second transmission line; 107—second feed source; 1041—first end of the third radiator; 1042—second end of the third radiator; 1051—first end of the fourth radiator; 1052—second end of the fourth radiator; D3—third slot; A3—third feeding point; B3—third grounding point; A4—fourth feeding point; B4—fourth grounding point; C2—second connection point; 108—first matching circuit; 109—second matching circuit;

[0077] 110—fifth radiator; 111—sixth radiator; 112—third transmission line; 113—third feed source; 1101—first end of the fifth radiator; 1102—second end of the fifth radiator; 1111—first end of the sixth radiator; 1112—second end of the sixth radiator; D4—fourth gap; A5—fifth feeding point; B5—fifth grounding point; A6—sixth feeding point; B6—sixth grounding point; C3—third connection point; 114—third matching circuit; 115—fourth matching circuit;

[0078] 200—existing antenna unit; 116—seventh radiator; 117—eighth radiator; 118—fourth feed source; A7—seventh feeding point; B7—seventh grounding point; B8—eighth grounding point; 119—fifth matching circuit. DETAILED DESCRIPTION

[0079] The present application provides an antenna unit and an electronic device including the antenna unit. By adopting a distributed-feed T-antenna radiator structure, different radiators in the antenna unit can be excited to produce corresponding complementary enhancement of signals in the common mode within the same operating frequency band. Different radiators in the antenna unit can also be excited to produce corresponding complementary enhancement of signals in the differential mode within the same operating frequency band, thereby improving the radiation performance of the antenna unit in the same resonant mode in free space and in the left and right head-hand states. The increase in the number of resonant modes broadens the operating frequency band of the antenna unit. As a result, not only can the electronic device including the antenna unit meet various communication needs, but it can also meet the requirements of an ultra-thin design with a thickness of 5 mm or greater and an extreme design with a screen-to-body ratio of 100% or greater, which is beneficial to improving the user experience.

[0080] Some of the terms in this application are explained below to facilitate understanding by those skilled in the art.

[0081] 1. Distributed feeding refers to a method in which one feed source feeds multiple radiators.

[0082] 2. Free space (FS) state refers to the state in which no objects are close to the electronic device, which is usually achieved in the laboratory.

[0083] 3. Beside head and light hand (BHHL) state, that is, the left hand holds the electronic device and is close to the left side of the face.

[0084] 4. Beside head and right hand (BHHR) state, that is, the right hand holds the electronic device and is close to the right side of the face.

[0085] 5. A T-antenna refers to an antenna in which the distance between the antenna's ground point and the antenna's midpoint falls within a preset range. Typically, the preset range is close to zero. This application does not limit the specific size of the preset range. In some embodiments, the preset range is greater than or equal to zero and less than or equal to 1 / 10 of the wavelength, where the wavelength is the wavelength of the electromagnetic wave signals radiated and received by the antenna unit. For example, the antenna's ground point is the antenna's midpoint.

[0086] 6. Antenna common mode (CM) mode

[0087] Take the wire antenna as an example to explain the CM mode of the antenna. Figure 1A As shown, the wire antenna 01 is connected to the feeding unit at the middle position 02. The positive pole of the feeding unit is connected to the middle position 02 of the wire antenna 01 through the feeding line 03, and the negative pole of the feeding unit is connected to the ground (eg, the floor, which can be a PCB).

[0088] Figure 1B The current and electric field distribution of the wire antenna 01 are shown in FIG. Figure 1B As shown, the current is distributed in opposite directions on both sides of the middle position 02, showing a symmetrical distribution; the electric field is distributed in the same direction on both sides of the middle position 02. Figure 1B As shown, the current at feeder 03 is distributed in the same direction. Based on the current distribution in the same direction at feeder 03, Figure 1A The feed shown may be referred to as a CM feed of a wire antenna. Figure 1B The wire antenna mode shown can be called the CM mode of the wire antenna. Figure 1B The current and electric field shown can be referred to as the current and electric field of the CM mode of the wire antenna, respectively.

[0089] The current and electric field in the CM mode of the wire antenna are generated by the two horizontal branches on either side of center position 02 of wire antenna 01, operating as an antenna in quarter-wavelength mode. The current is strong at center position 02 of wire antenna 01 and weak at its ends. The electric field is weak at center position 02 of wire antenna 01 and strong at its ends.

[0090] 7. Antenna differential mode (DM) mode

[0091] Take the wire antenna as an example to explain the DM mode of the antenna. Figure 2A As shown, the wire antenna 04 is connected to the feeding unit at the middle position 05. The positive pole of the feeding unit is connected to one side of the middle position 05 through the feeding line 06, and the negative pole of the feeding unit is connected to the other side of the middle position 05 through the feeding line 06.

[0092] Figure 2B The current and electric field distribution of the wire antenna 04 are shown. Figure 2BAs shown, the current is in the same direction on both sides of the middle position 05, showing an anti-symmetrical distribution; the electric field is distributed in opposite directions on both sides of the middle position 05. Figure 2B As shown, the current at the feeder 06 presents a reverse distribution. Based on the reverse distribution of the current at the feeder 06, Figure 2A The type of feed shown may be referred to as a wire antenna DM feed. Figure 2B This wire antenna pattern shown may be referred to as a DM pattern of the wire antenna. Figure 2B The current and electric field shown can be respectively referred to as the current and electric field of the DM mode of the wire antenna.

[0093] The DM mode current and electric field of the wire antenna are generated by the entire wire antenna 04 operating in half-wavelength mode. The current is strong at position 05 in the center of the wire antenna 04 and weak at its ends. The electric field is weak at position 05 in the center of the wire antenna 04 and strong at its ends.

[0094] It should be noted that the T antenna is a type of wire antenna. Therefore, the CM mode of the T antenna can be referred to the description of the CM mode of the wire antenna, and the DM mode of the T antenna can be referred to the description of the DM mode of the wire antenna. These are not described here in detail.

[0095] 8. 100% screen-to-body ratio

[0096] A 100% screen-to-body ratio can be understood as the display area of ​​the electronic device being equal to the area of ​​the front panel of the electronic device, or the display area of ​​the electronic device being equal to the area projected by the electronic device on the plane formed by the length and width directions of the electronic device (i.e., the front).

[0097] For example, in an electronic device, the area of ​​the display screen is equal to the area of ​​the front panel. When the display screen is a full screen, the display area of ​​the display screen is equal to the area of ​​the front panel, so the electronic device has a 100% screen-to-body ratio. When the display screen has a notch screen, a water drop screen, or a hole-punch screen, the display area of ​​the display screen is smaller than the area of ​​the front panel, so the electronic device does not have a 100% screen-to-body ratio.

[0098] For another example, in an electronic device, the display screen includes a first part and a second part. When the display screen is a notch screen, a water drop screen, or a hole screen, the area of ​​the display area of ​​the first part is smaller than the area of ​​the front panel. If the area of ​​the display area of ​​the second part is greater than or equal to the area of ​​the non-display area of ​​the first part, the electronic device is a device with a screen ratio greater than or equal to 100%. Otherwise, the electronic device is not a device with a screen ratio of 100%. The second part may include but is not limited to: an area set on the side of the electronic device and a rear panel set on the electronic device.

[0099] 9. Composite right hand and left hand (CRLH) antenna

[0100] Figure 3 A, C, D, E, and F shown in the black part represent radiators, C1 represents a capacitor structure, and the white part represents a printed circuit board. The part connected to A is the signal feeding end of the printed circuit board, and the part connected to F is the ground end of the printed circuit board.

[0101] Specifically, the radiator, the capacitor structure, the signal feed end and the ground end form an antenna P1, and its equivalent circuit is as follows: Figure 4 As shown, it conforms to the radiator structure of the left-hand antenna. In some embodiments, the electrical length of the left-hand antenna can be set to 1 / 4 to 1 / 8 of the electrical length. The radiator is equivalent to a parallel inductance L relative to the signal source. L , the capacitor structure is equivalent to a series capacitor C relative to the signal source L , to generate the resonant frequency f1, the resonant frequency f1 can cover 791MHz-821MHz, GSM850 (824MHz-894MHz) or GSM900 (880MHz-960MHz).

[0102] In general, the effective length of an antenna (i.e., the electrical length of the antenna) is expressed as a multiple of the wavelength corresponding to the resonant frequency generated by the antenna. The electrical length of the radiator is Figure 3 The length of ACDEF shown is indicated.

[0103] Because the electrical length of the radiator is greater than one-eighth of the wavelength corresponding to the resonant frequency f1, and less than one-quarter of the wavelength corresponding to the resonant frequency f1, antenna P1 also generates higher harmonics of the resonant frequency f1 (or multiples of the resonant frequency f1), covering a range of 1700MHz-1800MHz. Therefore, antenna P1, formed by the radiator, capacitor structure, signal feed terminal, and ground terminal, can generate a frequency range covering the resonant frequency f1 and its higher harmonics in a relatively small space.

[0104] The technical solution of this application is described in detail below with reference to the accompanying drawings of this application.

[0105] See also Figures 5A-5C , Figures 5A-5CThe figure shows a schematic diagram of the structure of an electronic device 1 provided by an embodiment of the present application. The electronic device 1 may include: a mobile phone, a watch, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, a VR helmet, or other devices capable of receiving and radiating electromagnetic wave signals. For the sake of convenience, Figures 5A-5C In the figure, the electronic device 1 is illustrated by taking a mobile phone as an example.

[0106] See also Figure 6 、 Figures 7A-7D , Figure 6 Shown Figure 5A The partially exploded view of the electronic device 1 is shown. Figure 7A Shown Figure 5A or Figure 5B The electronic device 1 is shown as a schematic structural diagram facing the Z direction. Figure 7B Shown Figure 5A or Figure 5B The electronic device 1 shown is a partial structural diagram facing the -Z direction after the back cover 32 is removed. Figure 7C Shown Figure 5C The electronic device 1 is shown as a schematic structural diagram facing the Z direction. Figure 7D Shown Figure 5C The diagram shows a partial structure of the electronic device 1 with the back cover 32 removed and facing the -Z direction.

[0107] The electronic device 1 includes a display screen 20 and a housing 30. The display screen 20 and the housing 30 form a housing cavity, and the housing 30 is used to support the display screen 20. The housing cavity of the housing 30 is also used to fix other components related to the electronic device 1. It is understandable that Figures 5A-5C , Figure 6 and Figures 7A-7D Only some components of the electronic device 1 are schematically shown, and the actual shape, size and structure of these components are not affected by the present invention. Figures 5A-5C , Figure 6 and Figures 7A-7D When the electronic device 1 is in normal use (i.e., the display screen 20 faces the user), the X direction is used to indicate that the width direction of the electronic device 1 is facing right along the paper, the Y direction is used to indicate that the length direction of the electronic device 1 is facing upward along the paper, and the Z direction is used to indicate that the thickness direction of the electronic device 1 is facing outside the display screen 20.

[0108] The display screen 20 is used to display images, videos, text, and the like. The display screen 20 can be a flexible display screen, a rigid display screen, or a curved screen. For example, the display screen 20 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (OLED) display screen, a micro organic light-emitting diode (OLED) display screen, a micro organic light-emitting diode (OLED) display screen, a quantum dot light-emitting diode (QLED) display screen, or a liquid crystal display (LCD).

[0109] In this application, the screen-to-body ratio of the electronic device 1 is greater than or equal to 100%. The display screen 20 is the display device of the electronic device 1. The screen-to-body ratio of the electronic device 1 depends on the display area of ​​the display screen 20. When the display area of ​​the display screen 20 is greater than or equal to the area of ​​the front panel of the electronic device, the display screen 20 can be called a full screen.

[0110] For example, Figure 5A The screen ratio of the electronic device 1 in the embodiment shown is equal to 100%. At this time, the display area of ​​the display screen 20 includes the entire surface of the electronic device 1 facing the Z direction. Figure 1A and Figure 7A-7B As shown. Another example, Figure 5A The screen ratio of the electronic device 1 in the embodiment shown is equal to 100%. In this case, the display area of ​​the display screen 20 includes: the entire surface of the electronic device 1 facing the Z direction, and the two sides extending from the entire surface of the electronic device 1 facing the Z direction to the partial side surfaces of the electronic device 1 along the -Z direction, such as 1A and Figure 7A-7B As shown. Another example, Figure 5B The screen-to-body ratio of the electronic device 1 of the embodiment shown is greater than 100%. In this case, the display area of ​​the display screen 20 includes: the entire surface of the electronic device 1 facing the Z direction and the two sides of the entire surface of the electronic device 1 facing the Z direction, extending from the -Z direction to the partial back surface of the electronic device 1 along the X direction, and the partial back surface of the electronic device 1 along the -X direction, as shown in FIG. Figure 1B and Figure 7C-7D shown.

[0111] It should be noted that the screen-to-body ratio of the electronic device 1 being greater than or equal to 100% is not limited to the above implementation.

[0112] In some embodiments, the electronic device 1 further includes a protective cover / cover ( Figures 5A-5C , Figure 6 and Figures 7A-7D The protective cover is stacked on the display screen 20. For example, the protective cover can be set close to the display screen 20, mainly used to protect the display screen 20 from dust. The material of the protective cover can include but is not limited to glass.

[0113] The present application does not limit the shape and material of the housing 30, which can be adjusted according to parameters such as the shape and area of ​​the display screen 20. Figures 5A-5C , Figure 6 and Figure 7A and Figure 7D In the embodiment, the display screen 20 and the housing 30 form a substantially rectangular parallelepiped structure.

[0114] To facilitate installation, in some embodiments, the housing 30 may include a frame 31 and a back cover 32 .

[0115] The frame 31 is disposed around the display screen 20 . Figure 5A In the embodiment, the frame 31 can be formed by connecting four sides end to end to form a square frame 31. Figure 5B In the embodiment, the frame 31 can be formed by connecting four sides to form a square frame 31, wherein the two longer non-adjacent sides are irregular in shape. Figure 5C In the embodiment, the border 31 may be composed of two upper and lower sides, or the border 31 may not exist.

[0116] In some embodiments, the frame 31 has chamfered corners, which makes the frame 31 aesthetically pleasing. The lengths of two adjacent sides of the frame 31 can be equal or unequal. The frame 31 can be made of a conductive material such as metal, or a non-conductive material such as plastic or resin.

[0117] The lengths of two adjacent sides of the frame 31 are different. The longer side of the frame 31 is in the length direction of the electronic device 1 , and the shorter side of the frame 31 is in the width direction of the electronic device 1 .

[0118] The back cover 32 and the display screen 20 are arranged opposite to each other. The back cover 32 and the display screen 20 are installed on opposite sides of the frame 31. At this time, the back cover 32, the frame 31 and the display screen 20 together enclose the interior of the electronic device 1. The interior of the electronic device 1 can be used to place other components related to the electronic device 1, such as the battery 40, the camera assembly 50, the RF front end, the printed circuit board, the speaker, the microphone or the earpiece. For the convenience of explanation, Figure 6 ,and Figure 7B and Figure 7D In the figure, the remaining related components are illustrated by taking the battery 40 and the camera assembly 50 as an example.

[0119] The present application does not limit the connection method between the back cover 32 and the frame 31. In some embodiments, the back cover 32 can be connected to the frame 31 by gluing. In other embodiments, the back cover 32 can be integrally formed with the frame 31, that is, the back cover 32 and the frame 31 are a single unit.

[0120] In some embodiments, the RF front end includes a transmitting path and a receiving path. The transmitting path includes components such as a power amplifier and a filter, which perform power amplification and filtering on the signal before transmitting it to the antenna unit 10, which then transmits it to the outside world through the antenna unit 10. The receiving path includes components such as a low-noise amplifier and a filter, which perform low-noise amplification and filtering on the external signal received by the antenna unit 10 before transmitting it to the RF chip, thereby enabling communication between the electronic device 1 and the outside world through the RF front end and the antenna unit 10.

[0121] In the present application, the electronic device 1 further includes at least one antenna unit 10. The electronic device 1 can communicate with a network or other devices through the antenna using one or more of the following communication technologies. The communication technologies include Bluetooth (BT) communication technology, global positioning system (GPS) communication technology, wireless fidelity (Wi-Fi) communication technology, global system for mobile communications (GSM) communication technology, wideband code division multiple access (WCDMA) communication technology, long term evolution (LTE) communication technology, 5G communication technology, SUB-6G communication technology, and other future communication technologies.

[0122] The antenna unit 10 may be formed by laser direct structuring (LDS), a flexible printed circuit board (FPC), or a microstrip disk antenna (MDA), etc., which is not limited in this application.

[0123] It is understood that the screen ratio of the electronic device 1 is greater than or equal to 100%, which can bring a more comfortable visual experience to the user. The electronic device 1 adopts an ultra-thin design, which can bring a more comfortable grip and a lighter carrying experience to the user. Among them, the ultra-thin electronic device 1 mentioned in this application means that the thickness of the entire electronic device 1 (such as Figure 5A TH1, Figure 5B TH2 and Figure 5C TH3, TH1, TH2 and TH3 may be equal or different, and this application does not limit this) is less than or equal to a preset thickness.

[0124] The preset thickness can be set based on parameters such as the configuration of various components such as the antenna unit 10 and user experience. In an ultra-thin, full-screen electronic device 1, the housing 30 is significantly reduced in both width and thickness. Internal components of the electronic device 1 (such as the battery 40, RF front end, camera assembly 50, receiver, fingerprint sensor, etc.) need to be rearranged, further compressing the space for the antenna unit 10.

[0125] In the present application, when the space for the antenna unit 10 in the electronic device 1 is limited, distributed feeding is used to enable the antenna unit 10 to generate multiple resonant modes, achieve broadband coverage, and ensure that the antenna unit 10 can normally receive and transmit electromagnetic wave signals. The antenna unit 10 has good radiation performance in the FS state, the BHHL state, and the BHHR state, which is beneficial to improving the radiation efficiency of the antenna unit 10, so that the electronic device 1 including the antenna unit 10 can meet various communication needs.

[0126] See also Figures 8A-8E , Figures 8A-8E FIG2 is a schematic structural diagram of an antenna unit 10 provided in an embodiment of the present application. Each antenna unit 10 may include: a first radiator 101 , a second radiator 102 , a first transmission line 103 and a first feed source 104 .

[0127] The first radiator 101 and the second radiator 102 employ a T-antenna radiator structure. The ratio of the electrical length of the first radiator 101 to the electrical length of the second radiator 102 is set within a range of 0.8 to 1.2. For example, 0.8, 0.83, 0.9, 0.93, 1, 1.02, 1.1, 1.15, or 1.2. In some embodiments, the ratio of the electrical length of the first radiator 101 to the electrical length of the second radiator 102 is set to 1.1. The electrical length of the first radiator 101 and the electrical length of the second radiator 102 are both approximately 1 / 2 of a first wavelength, which is the wavelength corresponding to any resonant point in the operating frequency band where the signal corresponding to the CM mode of the antenna unit 10 is excited by the first feed source 104 (e.g., the wavelength corresponding to the minimum resonant point of the antenna unit 10), i.e., the wavelength corresponding to any frequency point in the operating frequency band of the antenna unit 10. It should be noted that, in practical applications, the ratio of the electrical length of the first radiator 101 to the electrical length of the second radiator 102 is difficult to be equal to 1. This structural error can be compensated by setting a matching circuit in the antenna unit 10 and adjusting the matching circuit.

[0128] In this way, by setting the ratio of the electrical length of the first radiator 101 to the electrical length of the second radiator 102 within the range of 0.8 to 1.2, it is beneficial to achieve that the electrical length of the first radiator 101 and the second radiator 102 can both excite the same resonant mode and multiple resonant modes under the RF signal of the same frequency band.

[0129] Considering that the screen-to-body ratio of electronic device 1 is greater than or equal to 100%, in order to ensure that antenna unit 10 has sufficient clearance, the present application cannot place first radiator 101 and second radiator 102 in the position surrounding display screen 20 in housing 30, nor can the portion surrounding display screen 20 in housing 30 be used as first radiator 101 and second radiator 102. Furthermore, based on antenna placement rules, antenna unit 10 needs to be placed near the edge of electronic device 1 to ensure sufficient clearance to ensure the antenna's radiation performance.

[0130] In the present application, the first side L1 of the display screen 20 overlaps with the first side L3 of the housing 30 in the Z direction, and the second side L2 of the display screen 20 overlaps with the second side L4 of the housing 30 in the Z direction. The first side L1 of the display screen 20 and the second side L4 of the housing 30 are non-adjacent sides of the display screen 20 that are parallel to the Y direction, and the first side L3 of the housing 30 and the second side L4 of the housing 30 are non-adjacent sides of the housing 30 that are parallel to the Y direction. Therefore, in the present application, the first radiator 101 and the second radiator 102 are arranged left and right along the Y direction, and both the first radiator 101 and the second radiator 102 are arranged adjacent to the housing 30, or both the first radiator 101 and the second radiator 102 are arranged adjacent to the display screen 20.

[0131] In the present application, the distance between the first radiator 101 and the second radiator 102 and the display screen 20 or the battery 40 in the first direction is greater than or equal to 0.5 mm. The first direction can be any one of the X direction, the Y direction, and the Z direction.

[0132] The present application may compare a first distance between the display screen 20 and the antenna unit 10, and a second distance between the battery 40 and the antenna unit 10. When the first distance is less than or equal to the second distance, the first radiator 101 and the second radiator 102 may be at least 0.5 mm away from the display screen 20 in the first direction. When the first distance is greater than or equal to the second distance, the first radiator 101 and the second radiator 102 may be at least 0.5 mm away from the battery 40 in the first direction.

[0133] The antenna unit 10 can be set in the housing 30 or on the housing 30, and this application does not limit this. When the antenna unit 10 is set on the housing 30, this application can set the housing 30 to be an insulating material, or can groove or slit the housing 30 to implement the antenna unit 10. In this application, when the display area of ​​the display screen 20 only includes the entire surface of the electronic device 1 facing the Z direction (that is, the plane formed by the X direction and the Y direction), as shown in FIG. Figure 7A-7B As shown, the distance between the antenna unit 10 and the display screen 20 or the battery 40 in the Z direction is greater than or equal to 0.5 mm. Alternatively, the distance between the antenna unit 10 and the display screen 20 or the battery 40 in the X direction or the Y direction is greater than or equal to 0.5 mm.

[0134] When the display area of ​​the display screen 20 covers at least the side (i.e., the plane formed by the Y direction and the Z direction) and / or the back (i.e., the screen formed by the X direction and the -Z direction) of the electronic device 1, the projections of the antenna unit 10 and the display screen 20 on the plane formed by the X direction and the Y direction do not overlap, and the distance between the antenna unit 10 and the display screen 20 in the X direction or the Y direction is greater than or equal to 0.5 mm.

[0135] When the first radiator 101 and the second radiator 102 are disposed in the housing 30, the distance between the first radiator 101 and the display screen 20 in the X or Y direction is greater than or equal to 0.5 mm. The distance between the second radiator 102 and the display screen 20 in the X or Y direction is greater than or equal to 0.5 mm.

[0136] Taking the display screen 20 as an example, the first radiator 101 has a small gap (referred to as a first gap D1) with the first side L1 of the display screen 20 or the first side L3 of the housing 30 in the X or Y direction. The second radiator 102 has a small gap (referred to as a second gap D2) with the second side L2 of the display screen 20 or the second side L4 of the housing 30 in the X or Y direction.

[0137] When the first radiator 101 and the second radiator 102 are disposed on the housing 30 (i.e., the back cover 32), the distance between the first radiator 101 and the display screen 20 or the battery 40 in the Z direction is greater than or equal to 0.5 mm. The distance between the second radiator 102 and the display screen 20 or the battery 40 in the Z direction is greater than or equal to 0.5 mm.

[0138] Taking the display screen 20 as an example, the first radiator 101 has a small gap with the first side L1 of the display screen 20 or the first side L3 of the housing 30 in the Z direction. The second radiator 102 has a small gap with the second side L2 of the display screen 20 or the second side L4 of the housing 30 in the Z direction.

[0139] The present application does not limit the specific values ​​and filling materials of the first gap D1, the second gap D2, and the aforementioned gaps. The specific values ​​or filling materials of any of the aforementioned gaps may be the same or different. In some embodiments, any of the aforementioned gaps may be approximately 0.5 millimeters (mm). In some embodiments, any of the aforementioned gaps may be filled with a dielectric material to further enhance the electrical isolation between the first radiator 101 and the housing 30, and further enhance the electrical isolation between the second radiator 102 and the housing 30, so that the RF signals output or received by the first radiator 101 and the second radiator 102 can still be radiated through the housing 30.

[0140] In summary, the compact arrangement of the first radiator 101 and the second radiator 102 against the housing 30 or the display screen 20 places the antenna unit 10 closer to the edge of the electronic device 1, significantly reducing the space occupied by the antenna unit 10, saving the layout area of ​​the antenna unit 10, and achieving a better radiation effect of the antenna unit 10. This effectively solves the problem of the antenna unit 10 still having good isolation in a compact design, thereby ensuring that the antenna unit 10 has good radiation performance.

[0141] The electrical length of the first radiator 101 and the electrical length of the second radiator 102 may be the same or different. Figure 8A and Figure 8B In the example, the electrical length of the first radiator 101 is smaller than the electrical length of the second radiator 102. When the electrical lengths of the first radiator 101 and the second radiator 102 are different, this helps broaden the operating frequency bandwidth of the antenna unit 10. When the electrical lengths of the first radiator 101 and the second radiator 102 are the same, electrical connection through components such as capacitors and / or inductors helps broaden the operating frequency bandwidth of the antenna unit 10. In other embodiments, when the first radiator 101 and the second radiator 102 have the same shape and length, the first radiator 101 and the second radiator 102 can be arranged symmetrically along the Y-axis.

[0142] The shape of the first radiator 101 and the shape of the second radiator 102 can be a broken line (eg Figure 8A and Figure 8B The first radiator 101 and the second radiator 102 may be in the same or different shapes.

[0143] The first radiator 101 includes a first end 1011 and a second end located away from the first end 1011. Both the first end 1011 and the second end 1012 of the first radiator 101 are open ends, meaning that neither the first end 1011 and the second end 1012 of the first radiator 101 are grounded. The second radiator 102 includes a first end 1021 and a second end 1022 located away from the first end 1021. Both the first end 1021 and the second end 1022 of the second radiator 102 are open ends, meaning that neither the first end 1021 and the second end 1022 of the second radiator 102 are grounded.

[0144] The present application does not limit the location of the first radiator 101 and the second radiator 102. In some embodiments, the distance between the first radiator 101 and the second radiator 102 is greater than or equal to 1 / 4 of the first wavelength, which is beneficial to enhancing the radiation effect of the antenna unit 10. For example, Figure 8A or Figure 8B In the embodiment, the minimum distance between the second end 1012 of the first radiator 101 and the second end 1022 of the second radiator 102 is 1 / 4 of the first wavelength. Figure 8A or Figure 8B The positions shown are for illustrative purposes only.

[0145] The first radiator 101 has a first feeding point A1 and a first grounding point B1 .

[0146] The first ground point B1 is located in the middle of the first radiator 101. The distance between the first ground point B1 and the end surface of the first end portion 1011 of the first radiator 101 is within a range of 1 / 5 to 3 / 10 of the first wavelength. That is, the distance between the first ground point B1 and the midpoint of the first radiator 101 is greater than or equal to 0 and less than or equal to 1 / 10 of the first wavelength, allowing the first radiator 101 to form a radiator structure of a T-antenna. In some embodiments, the distance between the first ground point B1 and the end surface of the first end portion 1011 of the first radiator 101 is 1 / 4 of the first wavelength, i.e., the midpoint of the first radiator 101. It is understood that in actual applications, the distance between the first ground point B1 and the end surface of the first end portion 1011 of the first radiator 101 is unlikely to be exactly 1 / 4 of the first wavelength. This structural error can be compensated for by providing a matching circuit in the antenna unit 10 and adjusting the matching circuit.

[0147] The first grounding point B1 and the first feeding point A1 are spaced apart and arranged on the first radiator 101. The present application does not limit the relative position and distance between the first grounding point B1 and the first feeding point A1. Figure 8A and Figure 8B FIG. 1 shows that the first feeding point A1 is located on a side close to the second end 1012 of the first radiator 101. In other embodiments, the first feeding point A1 may also be located on a side away from the second end 1012 of the first radiator 101, such as Figure 8C and Figure 8E shown.

[0148] The first feeding point A1 is electrically connected to the first transmission line 103, and the first transmission line 103 is electrically connected to the first feed source 104 (the position where the first transmission line 103 and the first feed source 104 are electrically connected is referred to as the first connection point C1 in this application, and the first connection point C1 is not an actual point). The first feed source 104 is used to electrically connect the RF front end in the electronic device 1, so that the RF signal generated by the RF front end can be transmitted to the first radiator 101 through the transmission line between the first connection point C1 in the first transmission line 103 and the first feeding point A1, and transmitted to the outside world through the first radiator 101, and also enables the first radiator 101 to transmit the RF signal received from the outside world to the RF front end through the transmission line between the first connection point C1 in the first transmission line 103 and the first feeding point A1. It should be noted that the first feeding point A1 in this application is not an actual point, and the position where the first transmission line 103 and the first radiator 101 are connected is the first feeding point A1.

[0149] The first grounding point B1 is used to share the ground with the ground of the electronic device 1. By adjusting the position of the first grounding point B1, the electrical length of the first radiator 101 can be adjusted. The change in electrical length can change the frequency at which the first radiator 101 resonates. In actual application, the first grounding point B1 can be grounded through a grounding member such as a grounding spring pin or a grounding wire. The first end of the grounding member is connected to the first grounding point B1 of the first radiator 101, and the second end of the grounding member is electrically connected to the ground end of the electronic device 1. It should be noted that the first grounding point B1 of the present application is not an actual point, and the position where the grounding member such as the grounding spring pin or the grounding wire is connected to the first radiator 101 is the first grounding point B1.

[0150] The second radiator 102 has a second feeding point A2 and a second grounding point B2.

[0151] The second ground point B2 is located in the middle of the second radiator 102. The distance between the second ground point B2 and the end surface of the first end portion 1021 of the second radiator 102 is within a range of 1 / 5 to 3 / 10 of the first wavelength. That is, the distance between the second ground point B2 and the midpoint of the second radiator 102 is greater than or equal to 0 and less than or equal to 1 / 10 of the first wavelength, allowing the second radiator 102 to form a T-antenna radiator structure. In some embodiments, the distance between the second ground point B2 and the end surface of the first end portion 1021 of the second radiator 102, i.e., the midpoint of the second radiator 102, is 1 / 4 of the first wavelength. It is understood that in actual applications, the distance between the second ground point B2 and the end surface of the first end portion 1021 of the second radiator 102 is unlikely to be exactly 1 / 4 of the first wavelength. This structural error can be compensated for by providing a matching circuit in the antenna unit 10 and adjusting the matching circuit.

[0152] The second grounding point B2 and the second feeding point A2 are spaced apart and arranged on the second radiator 102. The present application does not limit the relative position and distance between the second grounding point B2 and the second feeding point A2. Figure 8A and Figure 8B FIG. 4 illustrates that the second feeding point A2 is located on a side close to the second end portion 1022 of the second radiator 102. In other embodiments, the second feeding point A2 may also be located on a side away from the second end portion 1022 of the second radiator 102, such as Figure 8D and Figure 8E shown.

[0153] In addition, the present application does not limit the shapes of the first radiator 101 and the second radiator 102. In some embodiments, the first radiator 101 and the second radiator 102 are both L-shaped.

[0154] See also Figure 8A-8BThe first feeding point A1 can be set at any location between the first grounding point B1 and the curved side of the first radiator 101 (i.e., the second end 1012 of the first radiator 101), except for the first grounding point B1. The second feeding point A2 can be set at any location between the second grounding point B2 and the curved side of the second radiator 102 (i.e., the second end 1022 of the second radiator 102), except for the second grounding point B2. For illustration, a straight first transmission line 103 is used as an example.

[0155] See also Figure 8C The first feeding point A1 can be set at any location between the first grounding point B1 and the non-bent side of the first radiator 101 (i.e., the first end 1011 of the first radiator 101), except for the first grounding point B1. The second feeding point A2 can be set at any location between the second grounding point B2 and the bent side of the second radiator 102 (i.e., the second end 1022 of the second radiator 102), except for the second grounding point B2. For illustration, the first transmission line 103 is zigzag-shaped.

[0156] See also Figure 8D The first feeding point A1 can be set at any location between the first grounding point B1 and the curved side of the first radiator 101 (i.e., the second end 1012 of the first radiator 101), except for the first grounding point B1. The second feeding point A2 can be set at any location between the second grounding point B2 and the non-curved side of the second radiator 102 (i.e., the first end 1021 of the second radiator 102), except for the second grounding point B2. The first transmission line 103 is zigzag-shaped as an example.

[0157] See also Figure 8E The first feeding point A1 can be set at any location between the first grounding point B1 and the non-curved side of the first radiator 101 (i.e., the first end 1011 of the first radiator 101), except for the first grounding point B1. The second feeding point A2 can be set at any location between the second grounding point B2 and the curved side of the second radiator 102 (i.e., the first end 1021 of the second radiator 102), except for the second grounding point B2. For illustration, a straight first transmission line 103 is used as an example.

[0158] In summary, the first feeding point A1 can be set at any position on the first radiator 101 except the first grounding point B1. The second feeding point A2 can be set at any position on the second radiator 102 except the second grounding point B2. Thus, when the electronic device 1 is held by hand, the antenna unit 10 can have good radiation performance.

[0159] It should be noted that when the first feeding point A1 is set at the first end 1011 or the second end 1012 of the first radiator 101, the present application can electrically connect the first feeding point A1 of the first transmission line 102 through a capacitor. When the second feeding point A2 is set at the first end 1021 or the second end 1022 of the second radiator 102, the present application can electrically connect the first transmission line 102 and the second feeding point A2 through a capacitor.

[0160] In addition, the relative position of the first ground point B1 and the second feed point A2 may be the same as or different from the relative position of the second ground point B2 and the second feed point A2. The distance between the first ground point B1 and the second feed point A2 may be the same as or different from the distance between the second ground point B2 and the second feed point A2.

[0161] The second feeding point A2 is electrically connected to the first transmission line 103, and the first transmission line 103 is electrically connected to the first feed source 104. The first feed source 104 is used to connect the RF front end in the electronic device 1, so that the RF signal generated by the RF front end can be transmitted to the second radiator 102 through the transmission line between the first connection point C1 in the first transmission line 103 and the second feeding point A2, and transmitted to the outside world through the second radiator 102, and also enables the second radiator 102 to transmit the RF signal received from the outside world to the RF front end through the transmission line between the first connection point C1 in the first transmission line 103 and the second feeding point A2. It should be noted that the second feeding point A2 of the present application is not an actual point. The location where the first transmission line 103 is connected to the second radiator 102 is the second feeding point A2.

[0162] The second grounding point B2 is used to share the ground with the ground of the electronic device 1. By adjusting the position of the second grounding point B2, the electrical length of the second radiator 102 can be adjusted. The change in electrical length can change the frequency at which the second radiator 102 resonates. In actual application, the second grounding point B2 can be grounded through a grounding member such as a grounding spring pin or a grounding wire. The first end of the grounding member is connected to the second grounding point B2 of the second radiator 102, and the second end of the grounding member is electrically connected to the ground end of the electronic device 1. It should be noted that the second grounding point B2 of the present application is not an actual point. The position where the grounding member such as the grounding spring pin or the grounding wire is connected to the second radiator 102 is the second grounding point B2.

[0163] Among them, the present application does not limit the type, shape, length and other parameters of the first transmission line 103. For example, the first transmission line 103 can be a trace in the electronic device 1, a flexible circuit board, a microstrip line, or a trace layer on the antenna bracket, etc. In addition, the first connection point C1 where the first transmission line 103 is electrically connected to the first feed source 104 can be set close to the first radiator 101, or close to the second radiator 102, or can be the midpoint of the first transmission line 103, and the present application does not limit this. In some embodiments, the first connection point C1 is set at any position between the midpoint of the first transmission line 103 and the end of the first transmission line 102 on the side close to the second radiator 102. For example, the first transmission line 103 can be in the shape of a broken line, a straight line or a curve, etc. For ease of explanation, the first connection point C1 where the first transmission line 103 is electrically connected to the first feed source 104 in the present application is as follows Figure 8A or Figure 8B The positions shown are for illustrative purposes only.

[0164] In summary, the first feed source 104 inputs RF signals of the same frequency band to the first feed point A1 and the second feed point A2 through the first transmission line 103. That is, the input signals of the first radiator 101 and the second radiator 102 are RF signals of the same frequency band. The present application does not limit the frequency band of the RF signal. For example, the frequency band of the RF signal is in the range of 600 megahertz (MHz) to 1200 MHz.

[0165] In other embodiments, the antenna unit 10 may further include a phase shifter. The phase shifter may be disposed between the first transmission line 103 and the first feed point A1. Alternatively, the phase shifter may be disposed between the first transmission line 103 and the second feed point A2. Thus, the phase shifter can be used to change the phase difference between the first radiator 101 and the second radiator 102, thereby improving isolation that would otherwise be compromised if the electronic device 1 is held.

[0166] It should be noted that the electronic device 1 of the present application can meet a screen-to-body ratio greater than or equal to 100%, and correspondingly, is also applicable to electronic devices with a screen-to-body ratio greater than or equal to 85%.

[0167] In a specific embodiment, Figures 8A-8EAs shown, the first radiator 101 can be positioned near side 1 and bottom 1 adjacent to side 1 of the electronic device 1. The length of the first radiator 101 in the Y direction can be 74.5 mm, and the width of the first radiator 101 in the X direction can be 7 mm. The second radiator 102 can be positioned near side 2 and bottom 2 adjacent to side 2 of the electronic device 1. Side 1 and side 2 are two non-adjacent sides of the electronic device 1 that are parallel to the Y direction. The length of the second radiator 102 in the Y direction can be 79.5 mm, and the width of the first radiator 101 in the X direction can be 7.5 mm. The first feeding point A1 can be positioned near the second end 1012 of the first radiator 101, and the second feeding point A2 can be positioned near the second end 1022 of the second radiator 102. The length of the first transmission line 103 in the Y direction can be 22.5 mm. The first radiator 101 and the second radiator 102 adopt LDS antenna form, the gap between the antenna unit 10 and the side 1 of the electronic device can be 1.5 mm, and the minimum height in the Z direction is 1 mm and the maximum height is 2.5 mm.

[0168] Figure 8B The antenna unit 10 of the embodiment shown is Figure 8A The simulation of the antenna unit 10 of the embodiment shown is similar. Figure 8A Taking the antenna unit 10 of the illustrated embodiment as an example, a simulation diagram of the antenna unit 10 of the above embodiment is introduced.

[0169] See also Figure 9A , Figure 9A Shown Figure 8A A schematic diagram of a curve of the return loss coefficient ( S11 ) of the antenna unit 10 in the FS state according to the embodiment shown. Figure 9A In the figure, the horizontal axis is frequency in GHz, and the vertical axis is S11 in dB.

[0170] The antenna unit 10 mainly generates four resonance modes between 0.5GHz and 1.2GHz, namely resonance "1" (0.72GHz), resonance "2" (0.73GHz), resonance "3" (0.9GHz) and resonance "4" (0.92GHz). Among them, resonance "1" (0.72GHz) is a resonance point in the working frequency band where the second radiator 102 excites the corresponding signal in the CM mode, resonance "2" (0.73GHz) is a resonance point in the working frequency band where the first radiator 101 excites the corresponding signal in the CM mode, resonance "3" (0.9GHz) is a resonance point in the working frequency band where the second radiator 102 excites the corresponding signal in the DM mode, and resonance "4" (0.92GHz) is a resonance point in the working frequency band where the first radiator 101 excites the corresponding signal in the DM mode.

[0171] See also Figure 9B , Figure 9B Shown Figure 8A The diagram shows curves of the total efficiency and radiation efficiency of the antenna unit 10 in the FS state according to the embodiment. Figure 9B In the figure, the horizontal axis is frequency in GHz, and the vertical axis is efficiency in dB.

[0172] The solid line represents the total efficiency of antenna unit 10 in the FS state. The dashed line represents the radiation efficiency of antenna unit 10 in the FS state. When the total efficiency of antenna unit 10 is around -5 dB, the operating frequency band of antenna unit 10 is approximately 37 MHz. When the total efficiency of antenna unit 10 is around -8 dB, the operating frequency band of antenna unit 10 is approximately 220 MHz.

[0173] See also Figure 9C , Figure 9C Shown Figure 8A Schematic diagram of current distribution of the antenna unit 10 in the FS state of the illustrated embodiment. Figure 9C The arrows in (1) indicate the current distribution on the second radiator 102 and a portion of the first transmission line 103 when the second radiator 102 stimulates the corresponding signal in the CM mode. Figure 9C The arrows in (2) indicate the current distribution on the first radiator 101 and a portion of the first transmission line 103 when the first radiator 101 stimulates a corresponding signal in the CM mode. Figure 9C (1) and Figure 9C There is a current reversal point in (2) Figure 9C (The hollow circles are used for illustration). Figure 9C The arrows in (3) indicate the current distribution on the second radiator 102 and part of the first transmission line 103 when the second radiator 102 stimulates the corresponding signal in the DM mode. Figure 9C The arrows in (4) indicate the current distribution on the first radiator 101 and part of the first transmission line 103 when the first radiator 101 stimulates the corresponding signal in the DM mode.

[0174] Combine Figures 9A-9C The antenna unit 10 has a high efficiency and a wide operating frequency band in the FS state, so that the antenna unit 10 has good radiation performance and can better meet the communication requirements of the electronic device 1.

[0175] See also Figures 10A-10C , Figures 10A-10C A structural schematic diagram of an antenna unit is shown. Figure 10A The antenna units in the include: Figure 8A In the illustrated embodiment, the first radiator 101 and a portion of the first transmission line 103 are provided with a first feeding point A1 and a first grounding point B1 . Figure 10B The antenna units in the include: Figure 8A In the embodiment shown, the second radiator 102 and a portion of the first transmission line 103 are provided, and the second radiator 102 has a second feeding point A2 and a second grounding point B2. Figure 10A The antenna unit and Figure 10B The antenna units in the Figure 8A The antenna unit 10 of the illustrated embodiment. Figure 10C The antenna units in the include: Figure 8A The first radiator 101 of the embodiment shown has a first feeding point A1 and a first grounding point B1. Figure 10C The antenna unit in may also include: Figure 8A The second radiator 102 of the embodiment shown has a second feeding point A2 and a second grounding point B2, which is not limited in the present application.

[0176] Figure 8A The antenna unit 10 of the illustrated embodiment includes a first radiator 101 and a second radiator 102 , and can be referred to as a distributed-feed T-antenna, that is, a left-side T-antenna. Figure 10A and Figure 10C The antenna unit of the illustrated embodiment includes a first radiator 101 , and can be referred to as a T-antenna fed only on the left side, ie, a single-sided T-antenna. Figure 10B The antenna unit of the illustrated embodiment includes a second radiator 102 , and is therefore referred to as a right-side-only-fed T-antenna, ie, a single-sided T-antenna.

[0177] See also Figure 11A , Figure 11A Shown Figure 8A The antenna unit 10 of the embodiment shown, Figure 10A The antenna unit of the embodiment shown and Figure 10B Schematic diagrams of curves of the antenna units of the illustrated embodiment in the FS state S11 . Figure 11A In the figure, the horizontal axis is frequency in GHz, and the vertical axis is S11 in dB. Figure 8A The antenna unit 10 in the FS state is S11. The dotted line 2 represents Figure 10A The antenna unit in the FS state is S11. The dotted line 3 represents Figure 10A The antenna unit in S11 is in FS state.

[0178] See also Figure 11B , Figure 11B Shown Figure 8AThe antenna unit 10 of the embodiment shown, Figure 10A The antenna unit of the embodiment shown and Figure 10B Schematic diagrams of curves of the total efficiency and radiation efficiency of the antenna unit of the embodiment shown in the FS state. Figure 11B In the figure, the horizontal axis is frequency in GHz, and the vertical axis is efficiency in dB.

[0179] The solid line 11 represents Figure 8A The total efficiency of the antenna unit 10 in the FS state. The dotted line 12 represents Figure 10A The total efficiency of the antenna unit in the FS state. The dotted line 13 represents Figure 10A The total efficiency of the antenna unit in the FS state. The solid line 21 represents Figure 8A The radiation efficiency of the antenna unit 10 in the FS state is shown in FIG. Figure 10A The radiation efficiency of the antenna unit in the FS state. The dotted line 23 represents Figure 10A Radiation efficiency of the antenna unit in the FS state.

[0180] Combine Figures 11A-11B ,compared to Figure 10A The antenna unit and Figure 10B As for the antenna unit of the embodiment shown, Figure 8A The antenna unit 10 of the embodiment shown has strong radiation performance and Figure 8A The efficiency bandwidth of the antenna unit 10 of the illustrated embodiment far exceeds the efficiency bandwidth of a single-sided T-antenna.

[0181] See also Figure 12A , Figure 12A Shown Figure 8A The antenna unit 10 of the illustrated embodiment and Figure 10A Schematic diagrams of curves of the total efficiency of the antenna unit of the illustrated embodiment in the FS state, the BHHL state, and the BHHR state, respectively. Figure 12A In the figure, the horizontal axis is frequency in GHz, and the vertical axis is total efficiency in dB.

[0182] The solid line 11 represents Figure 8A The total efficiency of the antenna unit 10 in the FS state. The dotted line 12 represents Figure 8A The total efficiency of the antenna unit in the BHHL state. The dotted line 13 represents Figure 8A The total efficiency of the antenna unit 10 in the BHHR state is shown in the solid line 21. Figure 10A The total efficiency of the antenna unit in the FS state. The dotted line 22 represents Figure 10A The total efficiency of the antenna unit in the BHHL state. The dotted line 23 represents Figure 10AThe total efficiency of the antenna unit in the BHHR state.

[0183] See also Figure 12B , Figure 12B Shown Figure 8A The antenna unit 10 of the illustrated embodiment and Figure 10A Schematic diagrams of curves of the radiation efficiency of the antenna unit of the illustrated embodiment in the FS state, the BHHL state, and the BHHR state, respectively. Figure 12B In the figure, the horizontal axis is frequency in GHz, and the vertical axis is radiation efficiency in dB.

[0184] The solid line 11 represents Figure 8A The radiation efficiency of the antenna unit 10 in the FS state. The dotted line 12 represents Figure 8A The radiation efficiency of the antenna unit 10 in the BHHL state is shown in FIG. Figure 8A The radiation efficiency of the antenna unit 10 in the BHHR state is shown in FIG. Figure 10A The radiation efficiency of the antenna unit in the FS state. The dotted line 22 represents Figure 10A The radiation efficiency of the antenna unit in the BHHL state. The dotted line 23 represents Figure 10A Radiation efficiency of the antenna unit in the BHHR state.

[0185] Combine Figures 12A-12B ,compared to Figure 10A As for the antenna unit of the embodiment shown, since the performance of the first radiator 101 and the second radiator 102 can enhance each other, that is, the corresponding signal in the CM mode excited by the T antennas on the left and right sides can be covered in the lower working frequency band, and the corresponding signal in the DM mode excited by the T antennas on the left and right sides can be covered in the higher working frequency band, Figure 8A The radiation performance of the antenna unit 10 of the illustrated embodiment is enhanced. Figure 8A The radiation performance of the antenna unit 10 of the embodiment shown is balanced, and Figure 8A The frequency bandwidth of the antenna unit 10 of the illustrated embodiment (such as curve 11 , dashed line 12 and dashed line 13 ) far exceeds the efficiency bandwidth of the single-sided T antenna (such as curve 21 , dashed line 22 and dashed line 23 ).

[0186] based on Figure 8A The antenna unit 10 of the illustrated embodiment plots the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites a signal corresponding to the CM mode, and the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites a signal corresponding to the DM mode. Theta is the angle in the ZOX plane, and phi is the angle in the XOY plane.

[0187] Based on the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites the corresponding signal in the CM mode, Figure 13A The two-dimensional radiation pattern of the electronic device 1 at resonance "1" or resonance "2" when phi=90° is shown. Figure 13B The two-dimensional radiation pattern of the electronic device 1 at resonance “ 1 ” or resonance “ 2 ” when theta=90° is shown.

[0188] Based on the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites the corresponding signal in the DM mode, Figure 13C The two-dimensional radiation pattern of the electronic device 1 at resonance "3" or resonance "4" when phi=90° is shown. Figure 13D The two-dimensional radiation pattern of the electronic device 1 at resonance "3" or resonance "4" when theta=90° is shown.

[0189] based on Figure 10C The antenna unit 10 of the illustrated embodiment plots the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites a signal corresponding to the CM mode, and the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites a signal corresponding to the DM mode. Theta is the angle in the ZOX plane, and phi is the angle in the XOY plane.

[0190] Based on the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites the corresponding signal in the CM mode, Figure 14A The two-dimensional radiation pattern of the electronic device 1 at resonance “5” (0.74 GHz) when phi=90° is shown. Figure 14B The two-dimensional radiation pattern of the electronic device 1 at resonance “ 5 ” when theta=90° is shown.

[0191] Based on the three-dimensional radiation pattern of the electronic device 1 when the antenna unit 10 excites the corresponding signal in the DM mode, Figure 14C The two-dimensional radiation pattern of the electronic device 1 at resonance “6” (0.89 GHz) when phi=90° is shown. Figure 14D The two-dimensional radiation pattern of the electronic device 1 at resonance “ 6 ” when theta=90° is shown.

[0192] In summary, combined Figures 13A-13D ,as well as Figures 14A-14D ,compared to Figure 10C For the antenna unit 10 of the embodiment shown, Figure 8A The radiation direction of the antenna unit 10 in the embodiment shown is bilaterally symmetrical along the Y direction. It can be seen that Figure 8A The antenna unit 10 of the illustrated embodiment has balanced radiation performance, thereby reflecting that the antenna unit 10 has balanced properties in the BHHL state and the BHHR state.

[0193] In the present application, the first radiator 101 and the second radiator 102 both adopt the radiator structure of the T antenna, so that the first radiator 101 and the second radiator 102 can both excite the CM mode in the same working frequency band (that is, the first radiator 101 and the second radiator 102 can generate the same type of resonant mode in the same working frequency band), and the corresponding signals in the CM mode generated by the first radiator 101 and the second radiator 102 can be complementary and enhanced, so that the signals generated by the first radiator 101 and the second radiator 102 in the CM mode can mutually excite each other, and also make the first radiator 101 and the second radiator 102 2. Both the first radiator 101 and the second radiator 102 can excite the DM mode in the same operating frequency band (that is, the first radiator 101 and the second radiator 102 can generate the same type of resonant mode in the same operating frequency band), and the corresponding signals in the DM mode generated by the first radiator 101 and the second radiator 102 can complement each other, so that the signals generated by the first radiator 101 and the second radiator 102 in the DM mode can excite each other, thereby improving the radiation performance of the antenna unit 10 in the same resonant mode in the FS state, the BHHL state, and the BHHR state, and widening the operating frequency band of the antenna unit by increasing the number of resonant modes.

[0194] Therefore, not only can the electronic device 1 including the above-mentioned antenna unit 10 meet various communication needs, but the electronic device 1 can also meet the ultra-thin design of 5mm-6mm thickness and the ultimate design of greater than or equal to 100% screen-to-body ratio, which is beneficial to improving the user experience.

[0195] Those skilled in the art will appreciate that the battery 40 can adversely affect the radiation performance of the antenna unit 10, and the ultra-thin design of the electronic device 1 can also negatively impact the capacity of the battery 40. Therefore, the battery 40 is often widened in the X-direction to maximize its footprint, ensuring a larger capacity to sustain the long-term use of the electronic device 1. This effectively reduces the overall thickness of the electronic device 1, facilitating its ultra-thin, full-screen design.

[0196] In the present application, the battery 40 is disposed near the first radiator 101 and the second radiator 102, and the battery 40 has a recessed area. When the projections of the battery 40, the first radiator 101, and the second radiator 102 in a first direction overlap, the recessed area of ​​the battery 40 at least includes the area where the antenna unit 10 is projected onto the battery 40 along the first direction. This allows at least the recessed area of ​​the battery 40 to provide clearance for the antenna unit 10 without affecting the radiation effect of the antenna unit 10.

[0197] When the first radiator 101 and the second radiator 102 are arranged in the housing 30 , if the first distance is greater than or equal to the second distance, the area of ​​the recessed region in the X direction is greater than or equal to the area of ​​the region where the antenna unit 10 is projected onto the battery 40 in the Y direction.

[0198] When the first radiator 101 and the second radiator 102 are disposed within the housing 30, if the first distance is greater than or equal to the second distance, the area of ​​the recessed region in the Y direction is greater than or equal to the area of ​​the region projected along the X direction by the antenna unit 10 onto the battery 40. This ensures that the battery 40 does not affect the radiation effect of the antenna unit 10.

[0199] The battery 40 may be in a convex inner and concave outer shape, such as a stepped shape, a prism shape, a truncated cone shape or an irregular shape. Figure 15A The stepped battery 40 is shown as an example.

[0200] When the first radiator 101 and the second radiator 102 are arranged on the housing 30, the area of ​​the recessed region in the Z direction is greater than or equal to the area of ​​the region where the antenna unit 10 is projected onto the battery 40 in the Z direction. Thus, the battery 40 does not affect the radiation effect of the antenna unit 10.

[0201] The area of ​​the battery 40 that overlaps with the first radiator 101 in the Z direction and the area of ​​the battery 40 that overlaps with the second radiator 102 in the Z direction may be completely or partially recessed along the Z direction, and this application does not limit this. Figure 15B The battery 40 is shown as an example.

[0202] Combine Figure 15A and Figure 15B , compared to Figure 15A For the battery 40 of the embodiment shown, Figure 15B The battery 40 of the illustrated embodiment may be wider in the X direction to increase the capacity of the battery 40 and extend the use of the electronic device 1 .

[0203] Thus, the antenna unit 10 has a good clearance area, ensuring that sufficient clearance area is reserved to ensure the radiation performance of the antenna, so that the electronic device 1 including the above antenna unit 10 can meet various communication requirements.

[0204] Based on the above description, Figure 8A or Figure 8B The antenna unit 10 of the embodiment shown can make the electronic device 1 meet the thickness design of greater than or equal to 5mm. In the process of ultra-thin design of the electronic device 1, the thickness requirement of the entire electronic device 1 can be appropriately relaxed, such as the electronic device 1 meets the ultra-thin design of 7mm-10mm thickness. In this application, except Figure 8A or Figure 8B In addition to the antenna unit 10 of the illustrated embodiment, the antenna unit 10 may include various implementations.

[0205] Other specific implementations of the antenna unit 10 provided in this application are described below in conjunction with the accompanying drawings.

[0206] See also Figure 16 , Figure 16 FIG2 shows a schematic structural diagram of an antenna unit 10 provided in an embodiment of the present application. Each antenna unit 10 may include: a third radiator 104 , a fourth radiator 105 , a second transmission line 106 and a second feed source 107 .

[0207] The third radiator 104 employs an inverted F antenna (IFA) radiator structure. The fourth radiator 105 employs a T-antenna radiator structure. The ratio of the electrical length of the fourth radiator 105 to the electrical length of the third radiator 104 is set within a range of 1.6 to 2.4, for example, 1.6, 1.63, 1.7, 1.73, 1.8, 1.9, 2, 2.1, 2.2, 2.3, or 2.4.

[0208] In some embodiments, the ratio of the electrical length of the fourth radiator 105 to the electrical length of the third radiator 104 is set to 2. The electrical length of the third radiator 104 is approximately 1 / 4 of the second wavelength, and the electrical length of the fourth radiator 105 is approximately 1 / 2 of the second wavelength. The second wavelength is the wavelength corresponding to any resonance point in the operating frequency band where the signal corresponding to the CM mode of the antenna unit 10 is excited by the second feed source 107 (such as the wavelength corresponding to the minimum resonance point of the antenna unit 10), that is, the wavelength corresponding to any frequency point in the operating frequency band of the antenna unit 10. It should be noted that in actual applications, the ratio of the electrical length of the fourth radiator 105 to the electrical length of the third radiator 104 is unlikely to be equal to 2. This structural error can be compensated by providing a matching circuit in the antenna unit 10 and adjusting the matching circuit.

[0209] In this way, by setting the ratio of the electrical length of the fourth radiator 105 to the electrical length of the third radiator 104 within the range of 1.6 to 2.4, it is beneficial to ensure that the electrical length of the third radiator 104 and the fourth radiator 105 can both excite a resonant mode under the RF signal of the same frequency band.

[0210] The shape of the third radiator 104 and the shape of the fourth radiator 105 can be a broken line (such as an L shape), a straight line, or an irregular shape, which is not limited in this application. The shape of the third radiator 104 and the shape of the fourth radiator 105 can be the same or different. For the sake of convenience, the third radiator 104 and the fourth radiator 105 in this application are as follows: Figure 16 The shapes shown are provided as examples.

[0211] Among them, the third radiator 104 and the fourth radiator 105 are arranged at a position close to the edge of the electronic device 1. For the specific implementation process, please refer to the description of the first radiator 101 and the second radiator 102 being arranged close to the housing 30 or the display screen 20, which will not be repeated here. In addition, this application does not limit the arrangement position of the third radiator 104 and the fourth radiator 105. For example, the third radiator 104 and the fourth radiator 105 are adjacent conductive segments or flexible circuit boards. For the sake of convenience, the first radiator 101 and the second radiator 102 in this application are as follows: Figure 16 The positions shown are for illustrative purposes only.

[0212] The third radiator 104 includes a first end 1041 and a second end 1042 located away from the first end 1041. The first end 1041 of the third radiator 104 is located near the first end 1051 of the fourth radiator 105, and the second end 1042 of the third radiator 104 is located away from the first end 1051 of the fourth radiator 105. The second end 1042 of the third radiator 104 is an open end, that is, the second end 1042 of the third radiator 104 is not grounded.

[0213] The fourth radiator 105 includes a first end 1051 and a second end 1052 disposed away from the first end 1051. The first end 1051 of the fourth radiator 105 is disposed proximate to the third radiator 104, and the second end 1052 of the fourth radiator 105 is disposed away from the third radiator 104. Both the first end 1051 and the second end 1052 of the fourth radiator 105 are open ends, i.e., neither the first end 1051 nor the second end 1052 of the fourth radiator 105 is grounded.

[0214] A third gap D3 is formed between the two adjacent ends of the third radiator 104 and the fourth radiator 105 (i.e., the first end 1041 of the third radiator 104 and the first end 1051 of the fourth radiator 105). This allows the third radiator 104 and the fourth radiator 105 to be arranged compactly, thereby reducing the space occupied by the third radiator 104 and the fourth radiator 105 and enhancing the radiation effect of the antenna unit 10. The present application does not limit the specific value or filling material of the third gap D3. For example, the third gap D3 can be greater than 0 and less than or equal to 10 mm. Of course, the third gap D3 can also be outside the aforementioned range.

[0215] The third radiator 104 has a third feeding point A3 and a third grounding point B3 .

[0216] The third grounding point B3 is located at the first end 1041 of the third radiator 104, meaning that the first end 1041 of the third radiator 104 is grounded. The third feeding point A3 is located on the side of the third grounding point B3 away from the fourth radiator 105. The length of the third radiator 104 between the third feeding point A3 and the third grounding point B3 is less than or equal to half the total length of the third radiator 104. In other words, the length of the third radiator 104 between the third feeding point A3 and the grounding end of the third radiator 104 is less than or equal to half the total length of the third radiator 104. In this case, the third feeding point A3 is located near the third grounding point B3. It is understood that the total length of the third radiator 104 is the length along the Y direction from the end surface of the first end 1041 of the third radiator 104 to the end surface of the second end 1042 of the third radiator 104.

[0217] The third feeding point A3 is electrically connected to the second transmission line 106, and the second transmission line 106 is electrically connected to the second feed source 107 (the location where the second transmission line 106 and the second feed source 107 are connected is referred to as the second connection point C2 in this application, and the second connection point C2 is not an actual point). The second feed source 107 is used to electrically connect the RF front end in the electronic device 1, so that the RF signal generated by the RF front end can be transmitted to the third radiator 104 through the transmission line between the second connection point C2 in the second transmission line 106 and the third feeding point A3, and transmitted to the outside world through the third radiator 104, and also enables the third radiator 104 to transmit the RF signal received from the outside world to the RF front end through the transmission line between the second connection point C2 in the second transmission line 106 and the third feeding point A3. It should be noted that the third feeding point A3 in this application is not an actual point. The location where the second transmission line 106 and the third radiator 104 are connected is the third feeding point A3.

[0218] The third grounding point B3 is used to share the ground with the ground of the electronic device 1. By adjusting the position of the third grounding point B3, the electrical length of the third radiator 104 can be adjusted. The change in electrical length can change the frequency at which the third radiator 104 resonates. In actual application, the third grounding point B3 can be grounded through a grounding member such as a grounding spring pin or a grounding wire. The first end of the grounding member is connected to the third grounding point B3 of the third radiator 104, and the second end of the grounding member is electrically connected to the ground end of the electronic device 1. It should be noted that the third grounding point B3 of the present application is not an actual point. The position where the grounding member such as the grounding spring pin or the grounding wire is connected to the third radiator 104 is the third grounding point B3.

[0219] The fourth radiator 105 has a fourth feeding point A4 and a fourth grounding point B4.

[0220] Among them, the distance between the fourth grounding point B4 and the midpoint of the fourth radiator 105 is greater than or equal to 0 and less than or equal to 1 / 10 of the second wavelength, so that the fourth radiator 105 can form a radiator structure of a T antenna. And the fourth grounding point B4 and the fourth feeding point A4 are spaced apart on the fourth radiator 105. This application does not limit the relative position and distance between the fourth grounding point B4 and the fourth feeding point A4. For the sake of convenience, the fourth grounding point B4 in this application is the midpoint of the fourth radiator 105 and the fourth feeding point A4 and the fourth grounding point B4 are as follows Figure 16 The positions shown are for illustrative purposes only.

[0221] The fourth feeding point A4 is electrically connected to the second transmission line 106, and the second transmission line 106 is electrically connected to the second feed source 107. The second feed source 107 is used to electrically connect the RF front end in the electronic device 1, so that the RF signal generated by the RF front end can be transmitted to the fourth radiator 105 through the transmission line between the second connection point C2 in the second transmission line 106 and the fourth feeding point A4, and transmitted to the outside world through the fourth radiator 105, so that the fourth radiator 105 transmits the RF signal received from the outside world to the RF front end through the transmission line between the second connection point C2 in the second transmission line 106 and the fourth feeding point A4. It should be noted that the fourth feeding point A4 of the present application is not an actual point. The location where the second transmission line 106 is connected to the fourth radiator 105 is the fourth feeding point A4.

[0222] The fourth grounding point B4 is used to share the ground with the ground of the electronic device 1. By adjusting the position of the fourth grounding point B4, the electrical length of the fourth radiator 105 can be adjusted. The change in electrical length can change the frequency at which the fourth radiator 105 resonates. In actual application, the fourth grounding point B4 can be grounded through a grounding member such as a grounding spring pin or a grounding wire. The first end of the grounding member is connected to the fourth grounding point B4 of the fourth radiator 105, and the second end of the grounding member is electrically connected to the ground end of the electronic device 1. It should be noted that the fourth grounding point B4 of the present application is not an actual point. The position where the grounding member such as the grounding spring pin or the grounding wire is connected to the fourth radiator 105 is the fourth grounding point B4.

[0223] Therefore, by setting the first end 1041 of the third radiator 104 as the ground end, and setting the ground end of the third radiator 104 close to the open end of the fourth radiator 105 (the first end 1051 of the fourth radiator 105), the antenna unit 10 is effectively solved to have better isolation in a compact design, thereby ensuring that the composite antenna has better antenna performance.

[0224] The present application does not limit the type, shape, length, or other parameters of the second transmission line 106. For example, the second transmission line 106 may be a trace within the electronic device 1, a flexible printed circuit board, a microstrip line, or a trace layer on an antenna support. Furthermore, the second connection point C2 between the second transmission line 106 and the second feed source 107 may be located near the third radiator 104, near the fourth radiator 105, or at the midpoint of the second transmission line 106, and this is not limited in the present application.

[0225] For example, the second transmission line 106 may be in a zigzag, straight, or curved shape. For ease of description, the second connection point C2 between the second transmission line 106 and the second feed source 107 in this application is as follows: Figure 16 The positions shown are for illustrative purposes only.

[0226] In summary, the second feed source 107 inputs RF signals of the same frequency band to the third feed point A3 and the fourth feed point A4 via the second transmission line 106. This means that the input signals to the third radiator 104 and the fourth radiator 105 are RF signals of the same frequency band. The present application does not limit the frequency band of the RF signal. For example, the frequency band of the RF signal is within the range of 600 MHz to 1200 MHz.

[0227] In some embodiments, antenna unit 10 may further include a first matching circuit 108 and a second matching circuit 109. First matching circuit 108 is electrically connected between second transmission line 106 and third feed point A3. Second matching circuit 109 is electrically connected between second transmission line 106 and fourth feed point A4. In some embodiments, first matching circuit 108 may be an inductor, and second matching circuit 109 may be a capacitor.

[0228] In other embodiments, the antenna unit 10 may further include a phase shifter. The phase shifter may be disposed between the second transmission line 106 and the third feed point A3. For example, the phase shifter may be disposed between the second transmission line 106 and the first matching circuit 108. Alternatively, the phase shifter may be disposed between the second transmission line 106 and the fourth feed point A4. For example, the phase shifter may be disposed between the second transmission line 106 and the second matching circuit 109. Thus, the phase shifter can be used to change the phase difference between the third radiator 104 and the fourth radiator 105, thereby improving the isolation that may have been compromised when the electronic device 1 is gripped.

[0229] In a specific embodiment, Figure 16As shown, the third radiator 104 can be disposed near the side 2 of the electronic device 1. The fourth radiator 105 can be disposed near the side 2 of the electronic device 1 and the bottom 1 adjacent to the side 2. The length of the side 2 of the electronic device 1 can be 158 mm, and the length of the bottom 1 of the electronic device 1 can be 78 mm. The length of the antenna unit 10 in the Y direction can be 92 mm, and the gap between the antenna unit 10 and the side 2 of the electronic device can be 1.5 mm. The third radiator 104 and the fourth radiator 105 adopt LDS and MDA antenna forms, and adopt a bracket antenna structure made of, for example, polycarbonate and acrylonitrile-butadiene-styrene copolymer and a blend (PCABS).

[0230] Below, Figure 16 Taking the antenna unit 10 of the illustrated embodiment as an example, a simulation diagram of the antenna unit 10 of the above embodiment is introduced.

[0231] See also Figures 17A-17C , Figure 17A Shown Figure 16 A schematic diagram of a curve of the return loss coefficient ( S11 ) of the antenna unit 10 in the FS state according to the embodiment shown. Figure 17A In the figure, the horizontal axis is frequency in GHz, and the vertical axis is S11 in dB.

[0232] The antenna unit 10 mainly generates three resonance modes between 0.7 GHz and 1.2 GHz: resonance "1" (0.89 GHz), resonance "2" (0.97 GHz), and resonance "3" (0.95 GHz). Resonance "1" (0.89 GHz) is a resonance point in the operating frequency band where the fourth radiator 105 stimulates the corresponding signal in the CM mode. Resonance "2" (0.73 GHz) is a resonance point in the operating frequency band where the fourth radiator 105 stimulates the corresponding signal in the DM mode. Resonance "3" (0.9 GHz) is a resonance point corresponding to the radiation signal stimulated by the third radiator 104.

[0233] See also Figure 17B , Figure 17B Shown Figure 16 A schematic diagram of a curve showing the total efficiency of the antenna unit 10 in the FS state according to the embodiment shown. Figure 17B In the figure, the horizontal axis is frequency in GHz, and the vertical axis is total efficiency in dB.

[0234] The solid line 1 represents Figure 16 The total efficiency of the antenna unit 10 in the FS state. The dotted line 2 represents Figure 16 The total efficiency of the antenna unit 10 in the BHHL state. The dotted line 3 represents Figure 16 The total efficiency of the antenna unit 10 in the BHHR state.

[0235] See also Figure 17C , Figure 17C Shown Figure 16 A schematic curve diagram of the radiation efficiency of the antenna unit 10 in the FS state according to the embodiment shown is shown. Figure 17C In the figure, the horizontal axis is frequency in GHz, and the vertical axis is radiation efficiency in dB.

[0236] The solid line 1 represents Figure 16 The radiation efficiency of the antenna unit 10 in the FS state. The dotted line 2 represents Figure 16 The radiation efficiency of the antenna unit 10 in the BHHL state is shown in FIG. Figure 16 Radiation efficiency of the antenna unit 10 in the BHHR state.

[0237] Combine Figures 17A-17C The antenna unit 10 has high efficiency in the FS state, the BHHL state, and the BHHR state, and has a wide operating frequency band, so that the antenna unit 10 has good radiation performance and can better meet the communication requirements of the electronic device 1.

[0238] Those skilled in the art will appreciate that the battery 40 can adversely affect the radiation performance of the antenna unit 10, and the ultra-thin design of the electronic device 1 can also negatively impact the capacity of the battery 40. Therefore, the battery 40 is often widened in the X-direction to maximize its footprint, ensuring a larger capacity to sustain the long-term use of the electronic device 1. This effectively reduces the overall thickness of the electronic device 1, facilitating its ultra-thin, full-screen design.

[0239] When the third radiator 104 and the fourth radiator 105 are arranged in the shell 30, the battery 40 is arranged close to the third radiator 104 and the fourth radiator 105, and the height of one end of the battery 40 close to the third radiator 104 in the X direction and the height of one end of the battery 40 close to the fourth radiator 105 in the X direction and the Y direction are both smaller than the height of the rest of the battery 40, so that the battery 40 does not affect the radiation effect of the antenna unit 10.

[0240] The battery 40 may be convex inside and concave outside, such as a step-shaped one (see Figure 15A The shapes shown in the figure are prism-shaped, truncated cone-shaped or irregular, etc.

[0241] When the first radiator 101 and the second radiator 102 are arranged on the housing 30, the battery 40 can be placed close to the edge of the electronic device 1 (such as the display screen 20 or the housing 30), thereby increasing the space occupied by the battery 40 in the X direction. The height of the area of ​​the battery 40 that overlaps with the third radiator 104 in the Z direction and the height of the area of ​​the battery 40 that overlaps with the fourth radiator 105 in the Z direction are both smaller than the height of the rest of the battery 40, ensuring that the battery 40 does not affect the radiation effect of the antenna unit 10.

[0242] The area of ​​the battery 40 that overlaps with the third radiator 104 in the Z direction and the area of ​​the battery 40 that overlaps with the fourth radiator 105 in the Z direction may be completely or partially recessed along the Z direction. Figure 15B The shape shown is not limited in this application.

[0243] Thus, the antenna unit 10 has a good clearance area, ensuring that sufficient clearance area is reserved to ensure the radiation performance of the antenna, so that the electronic device 1 including the above antenna unit 10 can meet various communication requirements.

[0244] In this application, the third radiator 104 adopts the radiator structure of the IFA antenna, and the fourth radiator 105 adopts the radiator structure of the T antenna, so that the third radiator 104 and the fourth radiator 105 can both excite radiation signals corresponding to multiple resonant modes in the same working frequency band, and in the FS state, BHHL state, and BHHR state, the radiation performance of the antenna unit 10 is improved, and the radiation frequency band of the antenna unit is broadened.

[0245] Therefore, not only can the electronic device 1 including the above-mentioned antenna unit 10 meet various communication needs, but the electronic device 1 can also meet the ultra-thin design of 7mm-10mm thickness and the full-screen design with a screen-to-body ratio greater than or equal to 100%, which is beneficial to improving the user experience.

[0246] See also Figures 18A-18C , Figures 18A-18C FIG2 is a schematic structural diagram of an antenna unit 10 according to an embodiment of the present application. Each antenna unit 10 may include a fifth radiator 110 , a sixth radiator 111 , a third transmission line 112 , and a third feed source 113 .

[0247] The fifth radiator 110 adopts the radiator structure of a composite right hand and left hand (CRLH) antenna. The sixth radiator 111 adopts the radiator structure of an IFA antenna. The ratio of the electrical length of the sixth radiator 111 to the electrical length of the fifth radiator 110 is set in the range of 0.8 to 1.2. For example, 0.8, 0.83, 0.9, 0.93, 1, 1.02, 1.1, 1.15 or 1.2. In some embodiments, the ratio of the electrical length of the sixth radiator 111 to the electrical length of the fifth radiator 110 is set to 1. The electrical length of the sixth radiator 111 is approximately 1 / 4 of the third wavelength, and the electrical length of the fifth radiator 110 is approximately 1 / 4 of the third wavelength. The third wavelength is the wavelength corresponding to a resonance point in the working frequency band where the signal corresponding to the DM mode of the antenna unit 10 is excited by the second feed source 107 (such as the wavelength corresponding to the larger resonance point of the antenna unit 10). It should be noted that in actual applications, the ratio of the electrical length of the sixth radiator 111 to the electrical length of the fifth radiator 110 is difficult to be equal to 1. This structural error can be compensated by setting a matching circuit in the antenna unit 10 and adjusting the matching circuit.

[0248] In this way, by setting the ratio of the electrical length of the sixth radiator 111 to the electrical length of the fifth radiator 110 within the range of 0.8 to 1.2, it is beneficial to ensure that the electrical length of the fifth radiator 110 and the sixth radiator 111 can both excite a resonant mode under the RF signal of the same frequency band.

[0249] The shape of the fifth radiator 110 and the shape of the sixth radiator 111 can be a broken line shape (such as an L shape), a straight line shape, or an irregular shape, which is not limited in this application. The shape of the fifth radiator 110 and the shape of the sixth radiator 111 can be the same or different. For the sake of convenience, the fifth radiator 110 and the sixth radiator 111 in this application are as follows: Figures 18A-18C The shapes shown are provided as examples.

[0250] Among them, the fifth radiator 110 and the sixth radiator 111 are arranged at a position close to the edge of the electronic device 1. For the specific implementation process, please refer to the description that the fifth radiator 110 and the sixth radiator 111 are both arranged close to the housing 30 or the display screen 20, which will not be repeated here. In addition, this application does not limit the arrangement position of the fifth radiator 110 and the sixth radiator 111. For example, the fifth radiator 110 and the sixth radiator 111 are adjacent conductive segments or flexible circuit boards. For the sake of convenience, the fifth radiator 110 and the sixth radiator 111 in this application are as follows Figures 18A-18C The positions shown are for illustrative purposes only.

[0251] The fifth radiator 110 includes a first end 1101 and a second end 1102 disposed away from the first end 1101. The first end 1101 of the fifth radiator 110 is disposed away from the sixth radiator 111, and the second end 1102 of the fifth radiator 110 is disposed near the fourth radiator 105. The second end 1102 of the fifth radiator 110 is an open end, that is, the second end 1102 of the fifth radiator 110 is not grounded.

[0252] The sixth radiator 111 includes a first end 1111 and a second end 1112 disposed away from the first end 1111. The first end 1111 of the sixth radiator 111 is disposed close to the fifth radiator 110, and the second end 1112 of the sixth radiator 111 is disposed away from the fifth radiator 110. The second end 1112 of the sixth radiator 111 is an open end, that is, the second end 1112 of the sixth radiator 111 is not grounded.

[0253] A fourth gap D4 is formed between the two adjacent ends of the fifth radiator 110 and the sixth radiator 111 (i.e., the second end 1101 of the fifth radiator 110 and the second end 1112 of the sixth radiator 111). This allows the fifth radiator 110 and the sixth radiator 111 to be arranged compactly, thereby reducing the space occupied by the fifth radiator 110 and the sixth radiator 111, and facilitating enhanced radiation performance of the antenna unit 10. The present application does not limit the specific value or filler material of the fourth gap D4. For example, the fourth gap D4 can be greater than 0 and less than or equal to 10 mm. Of course, the third gap D3 may also be outside the aforementioned range.

[0254] The fifth radiator 110 has a fifth feeding point A5 and a fifth grounding point B5 .

[0255] The fifth grounding point B5 is located at the first end 1101 of the fifth radiator 110, meaning that the first end 1101 of the fifth radiator 110 is grounded. The fifth feeding point A5 is located on the side of the fifth grounding point B5 away from the fifth radiator 110. The length of the fifth radiator 110 between the fifth feeding point A5 and the fifth grounding point B5 is less than or equal to half the total length of the fifth radiator 110, meaning that the length of the fifth radiator 110 between the fifth feeding point A5 and the grounding end of the fifth radiator 110 is less than or equal to half the total length of the fifth radiator 110. In this case, the fifth feeding point A5 is located near the fifth grounding point B5. It should be understood that the total length of the fifth radiator 110 is the length along the Y direction from the end surface of the first end 1101 of the fifth radiator 110 to the end surface of the second end 1102 of the fifth radiator 110.

[0256] The fifth feeding point A5 is electrically connected to the third transmission line 112, and the third transmission line 112 is electrically connected to the third feed source 113 (the location where the third transmission line 112 and the third feed source 113 are connected is referred to as the third connection point C3 in this application, and the third connection point C3 is not an actual point). The third feed source 113 is used to electrically connect the RF front end in the electronic device 1, so that the RF signal generated by the RF front end can be transmitted to the fifth radiator 110 through the transmission line between the third connection point C3 in the third transmission line 112 and the fifth feeding point A5, and transmitted to the outside world through the fifth radiator 110, and also enables the fifth radiator 110 to transmit the RF signal received from the outside world to the RF front end through the transmission line between the third connection point C3 in the third transmission line 112 and the fifth feeding point A5. It should be noted that the fifth feeding point A5 in this application is not an actual point. The location where the third transmission line 112 and the fifth radiator 110 are connected is the fifth feeding point A5.

[0257] The fifth grounding point B5 is used to share the ground with the ground of the electronic device 1. By adjusting the position of the fifth grounding point B5, the electrical length of the fifth radiator 110 can be adjusted. The change in electrical length can change the frequency at which the fifth radiator 110 resonates. In actual application, the fifth grounding point B5 can be grounded through a grounding member such as a grounding spring pin or a grounding wire. The first end of the grounding member is connected to the fifth grounding point B5 of the fifth radiator 110, and the second end of the grounding member is electrically connected to the ground end of the electronic device 1. It should be noted that the fifth grounding point B5 of the present application is not an actual point. The position where the grounding member such as the grounding spring pin or the grounding wire is connected to the fifth radiator 110 is the fifth grounding point B5.

[0258] The sixth radiator 111 has a sixth feeding point A6 and a sixth grounding point B6.

[0259] The sixth grounding point B6 is located at the first end 1111 of the sixth radiator 111, meaning that the first end 1111 of the sixth radiator 111 is a grounded end. The sixth feeding point A6 is located on the side of the sixth grounding point B6 away from the sixth radiator 111. The length of the sixth radiator 111 between the sixth feeding point A6 and the sixth grounding point B6 is less than or equal to half the total length of the sixth radiator 111, meaning that the length of the sixth radiator 111 between the sixth feeding point A6 and the grounded end of the sixth radiator 111 is less than or equal to half the total length of the sixth radiator 111. In this case, the sixth feeding point A6 is located near the sixth grounding point B6. It will be understood that the total length of the sixth radiator 111 is the length along the Y direction from the end surface of the first end 1111 of the sixth radiator 111 to the end surface of the second end 1112 of the sixth radiator 111.

[0260] The sixth feeding point A6 is electrically connected to the third transmission line 112, and the third transmission line 112 is electrically connected to the third feed source 113 (the location where the third transmission line 112 and the third feed source 113 are connected is referred to as the third connection point C3 in this application, and the third connection point C3 is not an actual point). The third feed source 113 is used to electrically connect the RF front end in the electronic device 1, so that the RF signal generated by the RF front end can be transmitted to the sixth radiator 111 through the transmission line between the third connection point C3 in the third transmission line 112 and the sixth feeding point A6, and transmitted to the outside world through the sixth radiator 111, and also enables the sixth radiator 111 to transmit the RF signal received from the outside world to the RF front end through the transmission line between the third connection point C3 in the third transmission line 112 and the sixth feeding point A6. It should be noted that the sixth feeding point A6 in this application is not an actual point. The location where the third transmission line 112 and the sixth radiator 111 are connected is the sixth feeding point A6.

[0261] The sixth grounding point B6 is used to share the ground with the ground of the electronic device 1, and the electrical length of the sixth radiator 111 can be adjusted by adjusting the position of the sixth grounding point B6. The change in electrical length can change the frequency at which the sixth radiator 111 resonates. In actual application, the sixth grounding point B6 can be grounded through a grounding member such as a grounding spring pin or a grounding wire. The first end of the grounding member is connected to the sixth grounding point B6 of the sixth radiator 111, and the second end of the grounding member is electrically connected to the ground end of the electronic device 1. It should be noted that the sixth grounding point B6 of the present application is not an actual point, and the position where the grounding member such as the grounding spring pin or the grounding wire is connected to the sixth radiator 111 is the sixth grounding point B6.

[0262] Therefore, by setting the first end 1111 of the sixth radiator 111 as the ground end and setting the ground end of the sixth radiator 111 close to the open end (second end) of the fifth radiator 110, the problem of the antenna unit 10 still having good isolation in a compact design is effectively solved, thereby ensuring that the composite antenna has better antenna performance.

[0263] Among them, the present application does not limit the type, shape, length and other parameters of the third transmission line 112. For example, the third transmission line 112 can be a trace in the electronic device 1, a flexible circuit board, a microstrip line or a trace layer on the antenna bracket, etc. In addition, the third connection point C3 between the third transmission line 112 and the third feed source 113 can be set close to the sixth radiator 111, or close to the fifth radiator 110, or can be the midpoint of the third transmission line 112, and the present application does not limit this. In some embodiments, the third connection point C3 between the third transmission line 112 and the third feed source 113 is set close to the sixth radiator 111. For example, the third transmission line 112 can be in the shape of a broken line, a straight line or a curve, etc. For ease of explanation, the third connection point C3 between the third transmission line 112 and the third feed source 113 in the present application is as follows Figures 18A-18C The positions shown are for illustrative purposes only.

[0264] In summary, the third feed source 113 inputs RF signals of the same frequency band to the fifth feed point A5 and the sixth feed point A6 via the third transmission line 112. This means that the input signals to the fifth radiator 110 and the sixth radiator 111 are RF signals of the same frequency band. The present application does not limit the frequency band of the RF signal. For example, the frequency band of the RF signal is within the range of 1700 MHz to 2700 MHz.

[0265] In some embodiments, antenna unit 10 may further include a third matching circuit 114 and a fourth matching circuit 115. Third matching circuit 114 is electrically connected between third transmission line 112 and fifth feed point A5. Fourth matching circuit 115 is electrically connected between third transmission line 112 and sixth feed point A6. In some embodiments, third matching circuit 114 may be a capacitor, and fourth matching circuit 115 may be an inductor.

[0266] In other embodiments, the antenna unit 10 may further include a phase shifter. The phase shifter may be disposed between the third transmission line 112 and the fifth feed point A5. For example, the phase shifter may be disposed between the third transmission line 112 and the third matching circuit 114. Furthermore, the phase shifter may be disposed between the third transmission line 112 and the sixth feed point A6. For example, the phase shifter may be disposed between the third transmission line 112 and the fourth matching circuit 115. Thus, the phase shifter may be used to change the phase difference between the fifth radiator 110 and the sixth radiator 111, thereby improving the isolation that may have been compromised when the electronic device 1 is gripped.

[0267] In a specific embodiment, Figure 18CAs shown, the fifth radiator 110 can be positioned 8 mm from the top edge 1 of the electronic device 1, and the sixth radiator 105 can be positioned near the side edge 2 of the electronic device 1 adjacent to the top edge 1. The top edge 1 and the bottom edge 1 are two non-adjacent sides of the electronic device 1 that are parallel to the X-direction. The length of the side edge 2 of the electronic device 1 can be 158 mm, and the length of the top edge 1 of the electronic device 1 can be 78 mm. The length of the antenna unit 10 in the Y-direction can be 50 mm, and the gap between the antenna unit 10 and the side edge 2 of the electronic device can be 1.5 mm.

[0268] Figure 18A The antenna units of the embodiment shown can be combined arbitrarily with antenna units that radiate signals in the low-frequency band. Figure 18B The antenna units in the include: Figure 8A The antenna unit and Figure 18A The antenna unit of the embodiment shown. For example, Figure 18C The antenna unit includes: the antenna unit of the embodiment shown in FIG15 and Figure 18A The antenna unit of the embodiment shown. Figure 18D , Figure 18D FIG2 is a structural diagram of an existing antenna unit 200 . The existing antenna unit 200 may include: a seventh radiator 116 , an eighth radiator 117 and a fourth feed source 118 .

[0269] The seventh radiator 116 has a seventh feed point A7 and a seventh ground point B7. The seventh radiator 116 includes a first end and a second end remote from the first end. The first end of the seventh radiator 117 is remote from the eighth radiator 118. The second end of the seventh radiator 117 is located near the eighth radiator 118. The seventh ground point B7 is electrically connected to the first end of the seventh radiator 116. The second end of the seventh radiator 116 is open, meaning that the second end of the seventh radiator 116 is not grounded. The seventh feed point A7 is electrically connected to the second end of the seventh radiator 116.

[0270] The eighth radiator 117 has an eighth grounding point B8. The eighth radiator 117 includes a first end and a second end remote from the first end. The first end of the eighth radiator 118 is located proximate to the seventh radiator 117. The second end of the eighth radiator 118 is located remote from the seventh radiator 117. The first end of the eighth radiator 117 is open, meaning that the first end of the eighth radiator 117 is not grounded. The eighth grounding point B8 is electrically connected to the second end of the eighth radiator 117.

[0271] In addition, the existing antenna unit 200 may further include a fifth matching circuit 119. In some embodiments, the fifth matching circuit 119 may be a capacitor.

[0272] Table 1 shows Figure 18D The SAR simulation values ​​of the existing antenna unit 200 of the embodiment shown in the figure, wherein the backside posture (backside) specifies the posture of the SAR probe located at the back of the electronic device and 5 mm away from the antenna. Table 2 shows Figure 18A SAR simulation values ​​of the antenna unit 10 of the illustrated embodiment.

[0273] Table 1 Figure 18D SAR simulation value of the antenna unit 200 of the embodiment shown

[0274]

[0275] Table 2 Figure 18A SAR simulation value of the antenna unit 10 of the embodiment shown

[0276]

[0277] Combining Table 1 and Table 2, at 5mm and 0mm distances, compared to Figure 18D For the antenna unit 200 of the embodiment shown, Figure 18A The body SAR of the antenna unit 10 of the illustrated embodiment is small, so as to provide a low SAR antenna solution.

[0278] Below, Figure 18A Taking the antenna unit 10 of the illustrated embodiment as an example, a simulation diagram of the antenna unit 10 of the above embodiment is introduced.

[0279] See also Figures 19A-19C , Figure 19A Shown Figure 18A Schematic diagrams of curves of the return loss coefficient (S11) of the antenna unit 10 of the illustrated embodiment, the antenna unit composed of the fifth radiator 110 (ie, CRLH antenna), and the antenna unit composed of the sixth radiator 111 (ie, IFA antenna) in the FS state. Figure 19A In the figure, the horizontal axis is frequency in GHz, and the vertical axis is S11 in dB.

[0280] The solid line 1 represents Figure 18A The antenna unit 10 of the illustrated embodiment is in S11 of the FS state. The dotted line 2 represents S11 of the antenna unit composed of the fifth radiator 110 in the FS state. The dotted line 3 represents S11 of the antenna unit composed of the sixth radiator 111 in the FS state.

[0281] Compared with the antenna unit composed of the fifth radiator 110 and the antenna unit composed of the sixth radiator 111, Figure 18AThe antenna unit 10 of the embodiment shown mainly generates two resonance modes between 0.7 GHz and 1.2 GHz, resonance "1" (1.75 GHz) and resonance "2" (1.97 GHz), and the number of the excited resonance modes increases by one, and Figure 18A The embodiment shown can achieve broadband coverage, wherein resonance "1" (1.75 GHz) is the resonance point corresponding to the radiation signal excited by the fifth radiator 110, and resonance "2" (1.97 GHz) is the resonance point corresponding to the radiation signal excited by the sixth radiator 111.

[0282] See also Figure 19B , Figure 19B Shown Figure 18A Schematic diagrams of total efficiency curves of the antenna unit 10 of the illustrated embodiment, the antenna unit composed of the fifth radiator 110 (ie, CRLH antenna), and the antenna unit composed of the sixth radiator 111 (ie, IFA antenna) in the FS state. Figure 19B In the figure, the horizontal axis is frequency in GHz, and the vertical axis is total efficiency in dB.

[0283] The solid line 11 represents Figure 18A The total efficiency of the antenna unit 10 in the FS state. The dotted line 12 represents Figure 18A The total efficiency of the antenna unit 10 in the BHHL state. The dotted line 13 represents Figure 18A The total efficiency of the antenna unit 10 in the BHHR state.

[0284] The solid line 21 represents the total efficiency of the antenna unit composed of the fifth radiator 110 in the FS state. The dashed line 22 represents the total efficiency of the antenna unit composed of the fifth radiator 110 in the BHHL state. The dashed line 23 represents the total efficiency of the antenna unit composed of the fifth radiator 110 in the BHHR state.

[0285] The solid line 31 represents the total efficiency of the antenna unit composed of the sixth radiator 111 in the FS state. The dashed line 32 represents the total efficiency of the antenna unit composed of the sixth radiator 111 in the BHHL state. The dashed line 33 represents the total efficiency of the antenna unit composed of the sixth radiator 111 in the BHHR state.

[0286] See also Figure 19C , Figure 19C Shown Figure 18A Schematic diagrams of curves of the radiation efficiency of the antenna unit 10 of the illustrated embodiment, the antenna unit composed of the fifth radiator 110 (ie, CRLH antenna), and the antenna unit composed of the sixth radiator 111 (ie, IFA antenna) in the FS state. Figure 19CIn the figure, the horizontal axis is frequency in GHz, and the vertical axis is radiation efficiency in dB.

[0287] The solid line 11 represents Figure 18A The radiation efficiency of the antenna unit 10 in the FS state. The dotted line 12 represents Figure 18A The radiation efficiency of the antenna unit 10 in the BHHL state is shown in FIG. Figure 18A Radiation efficiency of the antenna unit 10 in the BHHR state.

[0288] The solid line 21 represents the radiation efficiency of the antenna unit composed of the fifth radiator 110 in the FS state. The dashed line 22 represents the radiation efficiency of the antenna unit composed of the fifth radiator 110 in the BHHL state. The dashed line 23 represents the radiation efficiency of the antenna unit composed of the fifth radiator 110 in the BHHR state.

[0289] The solid line 31 represents the radiation efficiency of the antenna unit composed of the sixth radiator 111 in the FS state. The dashed line 32 represents the radiation efficiency of the antenna unit composed of the sixth radiator 111 in the BHHL state. The dashed line 33 represents the radiation efficiency of the antenna unit composed of the sixth radiator 111 in the BHHR state.

[0290] Combine Figures 19A-19C , Figure 18A The performance of the antenna unit 10 in the FS state, the BHHL state, and the BHHR state is improved by 0.5dB-1dB, and the efficiency is high and the operating frequency band is wide, so that the antenna unit 10 has good radiation performance and can better meet the communication requirements of the electronic device 1.

[0291] Those skilled in the art will appreciate that the battery 40 can adversely affect the radiation performance of the antenna unit 10, and the ultra-thin design of the electronic device 1 can also negatively impact the capacity of the battery 40. Therefore, the battery 40 is often widened in the X-direction to maximize its footprint, ensuring a larger capacity to sustain the long-term use of the electronic device 1. This effectively reduces the overall thickness of the electronic device 1, facilitating its ultra-thin, full-screen design.

[0292] When the third radiator 104 and the fourth radiator 105 are arranged in the shell 30, the battery 40 is arranged close to the third radiator 104 and the fourth radiator 105, and the height of one end of the battery 40 close to the third radiator 104 in the X direction and the height of one end of the battery 40 close to the fourth radiator 105 in the X direction and the Y direction are both smaller than the height of the rest of the battery 40, so that the battery 40 does not affect the radiation effect of the antenna unit 10.

[0293] The battery 40 may be convex inside and concave outside, such as a step-shaped one (see Figure 15A The shapes shown in the figure are prism-shaped, truncated cone-shaped or irregular, etc.

[0294] When the third radiator 104 and the fourth radiator 105 are disposed on the housing 30, the battery 40 can be placed close to the edge of the electronic device 1 (such as the display screen 20 or the housing 30), thereby increasing the space occupied by the battery 40 in the X direction. The height of the area of ​​the battery 40 that overlaps with the third radiator 104 in the Z direction and the height of the area of ​​the battery 40 that overlaps with the fourth radiator 105 in the Z direction are both smaller than the height of the rest of the battery 40, ensuring that the battery 40 does not affect the radiation effect of the antenna unit 10.

[0295] The area of ​​the battery 40 that overlaps with the third radiator 104 in the Z direction and the area of ​​the battery 40 that overlaps with the fourth radiator 105 in the Z direction may be completely or partially recessed along the Z direction. Figure 15B The shape shown is not limited in this application.

[0296] Thus, the antenna unit 10 has a good clearance area, ensuring that sufficient clearance area is reserved to ensure the radiation performance of the antenna, so that the electronic device 1 including the above antenna unit 10 can meet various communication requirements.

[0297] In the present application, the fifth radiator 110 adopts the radiator structure of CRLH, and the sixth radiator 111 adopts the radiator structure of IFA antenna, so that the fifth radiator 110 and the sixth radiator 111 can both excite corresponding radiation signals under multiple resonant modes in the same working frequency band, and in the FS state, BHHL state, and BHHR state, the radiation performance of the antenna unit 10 is improved, and the radiation frequency band of the antenna unit is broadened.

[0298] Therefore, not only can the electronic device 1 including the above-mentioned antenna unit 10 meet various communication needs, but the electronic device 1 can also meet the ultra-thin design of 7mm-10mm thickness and the full-screen design with a screen-to-body ratio greater than or equal to 100%, which is beneficial to improving the user experience.

[0299] In summary, combined Figure 18B and Figure 18C Several antenna unit configuration methods are introduced. Under distributed feeding, the antenna unit can occupy a small space in an environment with tight antenna arrangement, and the antenna unit can generate multiple resonant modes to achieve broadband coverage.

[0300] Furthermore, in the FS, BHHL, and BHHR states, the antenna unit achieves high system efficiency and a wide frequency bandwidth. Furthermore, the efficiency difference between the BHHL and BHHR states is minimal, resulting in excellent radiation performance, meeting the communication requirements of electronic devices.

[0301] In some embodiments, conductive components in the electronic device 1 that may affect the performance of the antenna unit 10, such as a camera assembly, a shielding cover, a radio frequency front end, a printed circuit board, etc., can be set so that the height of the area close to the antenna unit 10 in the Z direction is less than the height of the rest of the conductive component in the Z direction.

[0302] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna unit, characterized in that: include: A first radiator, a second radiator, a first transmission line, and a first feed source; Both ends of the first radiator are open ends, and the electrical length of the first radiator is greater than or equal to 1 / 2 of the first wavelength; both ends of the second radiator are open ends, and the electrical length of the second radiator is greater than or equal to 1 / 2 of the first wavelength, and the first wavelength is the wavelength corresponding to any frequency point in the operating frequency band of the antenna unit; The first radiator has a first feeding point and a first grounding point spaced apart from each other, the first feeding point being electrically connected to the first end of the first transmission line, the first grounding point being located in the middle of the first radiator, and a distance between the first grounding point and the midpoint of the first radiator being greater than or equal to 0 and less than or equal to 1 / 10 of the first wavelength; The second radiator has a second feeding point and a second grounding point spaced apart from each other, the second feeding point being electrically connected to the second end of the first transmission line, the second grounding point being located in the middle of the second radiator, and a distance between the second grounding point and the midpoint of the second radiator being greater than or equal to 0 and less than or equal to 1 / 10 of the first wavelength; The distance between the first radiator and the second radiator is greater than or equal to 1 / 4 of the first wavelength; The first transmission line is electrically connected to the first feed source, and the first transmission line is used to input a first radio frequency signal of the same frequency band to the first feeding point and the second feeding point, and the first radiator and the second radiator are simultaneously excited to produce a common mode mode and a differential mode mode under the first radio frequency signal.

2. The antenna unit according to claim 1, wherein: A distance between the first ground point and an end surface of one end portion of the first radiator is within a range from 1 / 5 of the first wavelength to 3 / 10 of the first wavelength.

3. The antenna unit according to claim 1, wherein: A distance between the second ground point and an end surface of one end portion of the second radiator is within a range from 1 / 5 of the first wavelength to 3 / 10 of the first wavelength.

4. The antenna unit according to any one of claims 1 to 3, characterized in that: The first grounding point is the midpoint of the first radiator, and the second grounding point is the midpoint of the second radiator.

5. The antenna unit according to any one of claims 1 to 3, characterized in that: The first radiator and the second radiator are both L-shaped.

6. The antenna unit according to claim 5, characterized in that The first feeding point is set at any position between the first ground point and the curved side of the first radiator except the first ground point, and the second feeding point is set at any position between the second ground point and the curved side of the second radiator except the second ground point.

7. The antenna unit according to any one of claims 1 to 3 and 6, characterized in that: A ratio of the electrical length of the first radiator to the electrical length of the second radiator is set in a range of 0.8 to 1.

2.

8. The antenna unit according to claim 7, characterized in that When the electrical length of the first radiator is smaller than the electrical length of the second radiator, the first connection point formed by the electrical connection between the first transmission line and the first feed source is set at any position between the midpoint of the first transmission line and the end of the first transmission line close to the second radiator.

9. The antenna unit according to any one of claims 1 to 3, 6 and 8, characterized in that: The frequency band of the first radio frequency signal is in the range of 600 MHz to 1200 MHz.

10. An electronic device, characterized in that: include: A display screen, a housing, a battery, and an antenna unit, wherein the antenna unit is the antenna unit according to any one of claims 1 to 9; The display screen and the shell form a accommodating cavity, and the antenna unit and the battery are arranged in the accommodating cavity; the distance between the antenna unit and the display screen or the battery in a first direction is greater than or equal to 0.5 mm, and the first direction is any one of the length direction of the electronic device, the width direction of the electronic device, and the thickness direction of the electronic device, and the first radiator and the second radiator in the antenna unit are arranged left and right along the length direction of the electronic device; the thickness of the electronic device is in the range of 5 mm-10 mm.

11. The electronic device according to claim 10, characterized in that The screen-to-body ratio of the electronic device is greater than or equal to 100%.

12. The electronic device according to claim 10, wherein: The thickness of the electronic device is in the range of 5 mm to 6 mm.

13. The electronic device according to any one of claims 10 to 12, characterized in that: The antenna unit is arranged in the housing and / or on the housing.

14. The electronic device according to any one of claims 10 to 12, characterized in that: The battery has a recessed area, and the recessed area at least includes an area where the antenna unit is projected onto the battery along the first direction.

15. The electronic device according to any one of claims 10 to 12, characterized in that: The distance between the first radiator and the first side of the display screen in the first direction is greater than or equal to 0.5 mm, the distance between the second radiator and the second side of the display screen in the first direction is greater than or equal to 0.5 mm, and the first side of the display screen and the second side of the display screen are two non-adjacent sides of the display screen in the length direction of the electronic device.

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