CN117525847A

CN117525847A - Electronic equipment

Info

Publication number: CN117525847A
Application number: CN202311781803.0A
Authority: CN
Inventors: 姜文禹
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2023-12-21
Filing date: 2023-12-21
Publication date: 2024-02-06

Abstract

An embodiment of the present application provides an electronic device, including: the first radiator comprises a first feed point and a first tuning point which are arranged at intervals; the first broadband matching network is electrically connected with the first feed point; the first feed source is electrically connected with the first broadband matching network and is used for providing a first excitation signal; the first matching module is electrically connected with the first tuning point and is grounded; the first broadband matching network is used for providing broadband impedance matching for the first radiator, so that the first excitation signal excites the first radiator to support a first radiation mode, and the first radiation mode covers a plurality of low-frequency bands. In the electronic device of the embodiment of the application, the first radiator can cover a plurality of low-frequency bands, the band switching of the first radiator is not needed through the antenna switch, the antenna switch of the first radiator can be saved, and therefore the overall antenna cost can be saved.

Description

Electronic equipment

Technical Field

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

Background

Antennas, such as low frequency (LB) antennas, medium and high frequency (MHB) antennas, etc., are provided in electronic devices such as smartphones to implement corresponding wireless communication functions.

In the related art, a low-frequency antenna and a medium-high-frequency antenna in an electronic device all need to switch different frequency bands through an antenna switch, so that the overall antenna cost is high.

Disclosure of Invention

The embodiment of the application provides electronic equipment, which can enable a first radiator to cover a plurality of low-frequency bands, does not need to switch the frequency bands of the first radiator through an antenna switch, and can save the antenna cost.

An embodiment of the present application provides an electronic device, including:

the first radiator comprises a first feed point and a first tuning point which are arranged at intervals;

a first broadband matching network electrically connected to the first feed point;

the first feed source is electrically connected with the first broadband matching network and is used for providing a first excitation signal;

the first matching module is electrically connected with the first tuning point and is grounded;

the first broadband matching network is used for providing broadband impedance matching for the first radiator, so that the first excitation signal excites the first radiator to support a first radiation mode, and the first radiation mode covers a plurality of low-frequency bands.

According to the electronic equipment, broadband impedance matching is provided for the first radiator through the first broadband matching network, so that the first radiator supports the first radiation mode, and the first radiator can cover a plurality of low-frequency bands, so that frequency band switching is not required for the first radiator through the antenna switch, and compared with the prior art, the antenna switch of the first radiator can be saved, and therefore the overall antenna cost can be saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a first structure of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic circuit diagram of a first circuit of the electronic device according to the embodiment of the application.

Fig. 3 is a schematic diagram of a second circuit principle of the electronic device according to the embodiment of the present application.

Fig. 4 is a schematic diagram of a third circuit principle of the electronic device according to the embodiment of the present application.

Fig. 5 is a circuit diagram of an electronic device according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a first resonant current distribution of an electronic device according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a first S parameter of an electronic device according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a first radiation efficiency of an electronic device according to an embodiment of the present application.

Fig. 9 is a schematic diagram of a second structure of an electronic device according to an embodiment of the present application.

Fig. 10 is a schematic diagram of a second resonant current distribution of an electronic device according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a second S parameter of the electronic device according to the embodiment of the application.

Fig. 12 is a schematic diagram of a second radiation efficiency of the electronic device according to the embodiment of the present application.

Fig. 13 is a schematic diagram of a third structure of an electronic device according to an embodiment of the present application.

Fig. 14 is a schematic diagram of a third resonant current distribution of an electronic device according to an embodiment of the present application.

Fig. 15 is a schematic diagram of a fourth resonant current distribution of an electronic device according to an embodiment of the present application.

Fig. 16 is a schematic diagram of a third S parameter of the electronic device according to the embodiment of the application.

Fig. 17 is a schematic diagram of a third radiation efficiency of an electronic device according to an embodiment of the present application.

Fig. 18 is a fourth structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 19 is a schematic view of a fifth structure of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which are within the scope of the protection of the present application, will be within the skill of the art without inventive effort.

The embodiment of the application provides electronic equipment. The electronic device may be, for example, a smart phone, a tablet computer, a game device, an AR (Augmented Reality ) device, a notebook computer, a desktop computing device, or the like having a wireless communication function.

Referring to fig. 1, fig. 1 is a schematic diagram of a first structure of an electronic device 100 according to an embodiment of the present application. The electronic device 100 comprises a first radiator 11, a first broadband matching network 12, a first feed 13 and a first matching module 14.

The first radiator 11 may be an antenna radiator in a form such as FPC (Flexible Printed Circuit, flexible circuit board), LDS (Laser Direct Structure, laser direct structuring), PDS (Printing Direct Structure, printing direct structuring), or an antenna radiator in a form of MDA (in-mold injection) or an antenna radiator formed by a conductor structure of an electronic device, a metal trace on a circuit board, or the like. In practical applications, the shape, size, etc. of the first radiator 11 may be set according to practical requirements. For example, in one practical application example, the first radiator 11 may have an "L" shape.

Wherein the first radiator 11 comprises a first feeding point 111 and a first tuning point 112 arranged at intervals.

The first broadband matching network 12 may be denoted as N1. Wherein the first broadband matching network 12 is electrically connected to the first feeding point 111. The first broadband matching network 12 is an impedance module.

The first feed 13 may be provided on a circuit board of the electronic device, for example on a motherboard, or may be provided on a separate small board. The first feed 13 is electrically connected to the first broadband matching network 12. The first feed 13 is used to provide a first excitation signal and to feed the first excitation signal to the first feed point 111 via the first broadband matching network 12.

In some embodiments, the first excitation signal may be a Low frequency (LB) excitation signal. In one possible example, the low frequency (LB) frequency range includes 700MHz to 960MHz. It should be noted that the foregoing low-frequency range is merely exemplary, and may be adjusted according to requirements or according to development and variation of communication technology in practical applications.

The first matching module 14 may be denoted as M1. Wherein the first matching module 14 is electrically connected to the first tuning point 112. The first matching module 14 is grounded, for example, may be electrically connected to the system ground of the electronic device to achieve grounding. The first matching module 14 is an impedance module. In some embodiments, the first matching module 14 includes at least one of inductance, capacitance, i.e., the first matching module 14 may be an inductance, capacitance, or a combination of inductance and capacitance circuit. For example, in one possible example, the first matching module 14 may be an inductance of 47N.

Referring to fig. 2 and 3, fig. 2 is a schematic diagram of a first circuit principle of the electronic device 100 according to the embodiment of the present application, and fig. 3 is a schematic diagram of a second circuit principle of the electronic device 100 according to the embodiment of the present application.

The first broadband matching network 12 includes at least one broadband matching unit 121, where at least one means one, two or more, for example, one broadband matching unit 121 as shown in fig. 2, and for example, two broadband matching units 121 as shown in fig. 3. The broadband matching unit 121 is configured to provide broadband impedance matching to the first radiator 11. When the broadband matching unit 121 is one, the broadband matching unit 121 is connected in series between the first feed 13 and the first feed point 111 of the first radiator 11. When the plurality of broadband matching units 121 are provided, the plurality of broadband matching units 121 are sequentially connected in series, and one end of the whole formed by the series is electrically connected to the first feed 13, and the other end is electrically connected to the first feed point 111 of the first radiator 11.

Wherein each of the broadband matching units 121 includes a first impedance element LC1 and a second impedance element LC2. The first impedance element LC1 is connected in series between the first feed 13 and the first feed point 111. The first impedance element LC1 is one of a capacitor and an inductor. The second impedance element LC2 has one end electrically connected between the first feed 13 and the first feed point 111 and the other end grounded. The second impedance element LC2 is the other of capacitance and inductance. For example, the first impedance element LC1 may be configured as a capacitor, and the second impedance element LC2 as an inductor; or the first impedance element LC1 is configured as an inductance and the second impedance element LC2 is configured as a capacitance.

When the plurality of broadband matching units 121 is provided, the first impedance elements LC1 of different broadband matching units 121 may be different types, and the second impedance elements LC2 may be different types. For example, the first impedance LC1 of one of the broadband matching units 121 may be a capacitor, the first impedance LC1 of the other broadband matching unit 121 may be an inductor, and the same applies to the second impedance LC2. Further, the capacitance value and the inductance value of the first impedance element LC1, the second impedance element LC2 of the different broadband matching unit 121 may be set according to the need. That is, the capacitances of the different broadband matching units 121 may have different capacitance values, and the inductances of the different broadband matching units 121 may also have different inductance values.

In some embodiments, referring to fig. 4, fig. 4 is a schematic diagram of a third circuit principle of the electronic device 100 according to the embodiments of the present application.

The first broadband matching network 12 further comprises an impedance matching unit 122. The impedance matching unit 122 is connected in series between the first feed 13 and the first feed point 111 of the first radiator 11, for example, between the first feed 13 and the broadband matching unit 121. The impedance matching unit 122 may include at least one of a capacitor and an inductance, that is, an inductance, a capacitance, or a combination circuit of an inductance and a capacitance. The impedance matching unit 122 is for providing impedance matching for the first radiator 11.

In some embodiments, referring to fig. 5, fig. 5 is a circuit example diagram of an electronic device 100 according to an embodiment of the present application. In this example, the broadband matching unit 121 is one.

The first impedance element LC1 is a capacitor C. The capacitor C is connected in series between the first feed 13 and the first feed point 111. In one possible example, the capacitance value of the capacitor C is 5.5pF.

The second impedance element LC2 is a first inductance L1. The first inductor L1 has one end electrically connected to the point P1 between the capacitor C and the first feeding point 111, and the other end grounded. In one possible example, the inductance value of the first inductance L1 is 2.6N.

The impedance matching unit 122 includes a second inductance L2 and a third inductance L3. The second inductance L2 is connected in series between the first feed 13 and the capacitance C. One end of the third inductor L3 is electrically connected to the point P2 between the second inductor L2 and the capacitor C, and the other end of the third inductor L3 is grounded. In one possible example, the second inductance L2 has an inductance value of 7.5N, and the third inductance L3 has an inductance value of 9.5N.

In this embodiment, the first broadband matching network 12 is configured to provide broadband impedance matching for the first radiator 11, so that the first excitation signal excites the first radiator 11 to support a first radiation mode, and the first radiation mode covers a plurality of low-frequency bands, so that the first radiator 11 can radiate wireless signals in a plurality of low-frequency bands, thereby having a larger bandwidth.

For example, in one possible example, the first radiation pattern covers a plurality of low frequency bands such as B5 (frequency range 824MHz to 894 MHz), B8 (frequency range 880MHz to 960 MHz), B28 (frequency range 703MHz to 803 MHz), and the like.

In practical application, according to application requirements, the first radiator 11 can be additionally configured to cover an N41 (frequency range 2496 MHz-2690 MHz) frequency band of 5G communication, so that communication modes that can be supported by the electronic device are more abundant.

In some embodiments, referring to fig. 6, fig. 6 is a schematic diagram of a first resonant current distribution of the electronic device 100 according to an embodiment of the present application.

The first radiator 11 comprises a first free end 11a and a second free end 11b opposite each other. The first feeding point 111 and the first tuning point 112 are both located between the first free end 11a and the second free end 11b.

In practical applications, the first matching module M1 presents a high impedance, i.e. a resistance, to the low frequency (LB), and the low frequency resonant current mainly goes down from the first feeding point 111, so that the first radiator 11 presents a T-antenna mode. Therefore, the first radiation mode is set to be a radiation mode of the T antenna.

Wherein the first radiation mode forms a first resonant current I between the first free end 11a of the first radiator 11 and the first feeding point 111 ₁ And a second resonance current I is formed between the second free end 11b and the first feeding point 111 ₂ . First resonant current I ₁ With a second resonant current I ₂ And the reverse direction.

Referring to fig. 7 and 8, fig. 7 is a schematic diagram of a first S parameter of the electronic device 100 according to the embodiment of the present application, and fig. 8 is a schematic diagram of a first radiation efficiency of the electronic device 100 according to the embodiment of the present application.

The first radiator 11, the first broadband matching network 12, the first feed 13, and the first matching module 14 may together form a first antenna. Fig. 7 is a schematic diagram of S parameters of the first antenna, and fig. 8 is a schematic diagram of radiation efficiency of the first antenna.

As shown in fig. 7, the first antenna may cover a plurality of low frequency bands. Wherein, the resonance frequency corresponding to the mark point 1 is about 0.64GHz, and the resonance frequency corresponding to the mark point 2 is about 0.99GHz.

As shown in fig. 8, S1 represents a theoretical radiation efficiency curve of the first antenna, and S2 represents a total radiation efficiency curve of the first antenna. Wherein, the resonance frequency corresponding to the mark point 1 is about 0.7GHz, and the radiation efficiency is about-8.7 dB. The resonance frequency corresponding to the mark point 2 is about 0.8GHz, and the radiation efficiency is about-9.9 dB. The resonance frequency corresponding to the mark point 3 is about 0.9GHz, and the radiation efficiency is about-9.3 dB. As can be seen from fig. 8, each low frequency band of the first antenna has good radiation efficiency.

According to the electronic device 100, broadband impedance matching is provided for the first radiator 11 through the first broadband matching network 12, so that the first radiator 11 supports the first radiation mode, and the first radiator 11 can cover a plurality of low-frequency bands, so that frequency band switching is not required for the first radiator 11 through the antenna switch, and compared with the prior art, the antenna switch of the first radiator 21 can be saved, and therefore the overall antenna cost can be saved.

In some embodiments, referring to fig. 9, fig. 9 is a second structural schematic diagram of an electronic device 100 according to an embodiment of the present application. The electronic device 100 further comprises a second radiator 21, a second broadband matching network 22, a second feed 23.

The second radiator 21 may be an antenna radiator in a form such as FPC, LDS, PDS, MDA, or may be an antenna radiator formed by a conductor structure of an electronic device, a metal trace on a circuit board, or the like. In practical applications, the shape, size, etc. of the second radiator 21 may be set according to practical requirements.

The second radiator 21 is spaced apart from the first radiator 11. The second radiator 21 includes a second feeding point 211 and a first grounding point 212 which are disposed at intervals. The first ground point 212 is grounded, for example, may be electrically connected to a system ground of the electronic device to achieve grounding.

The second broadband matching network 22 may be denoted as N2. Wherein the second broadband matching network 22 is electrically connected to the second feeding point 211. The second broadband matching network 22 is an impedance module. In some embodiments, the structure of the second broadband matching network 22 may be the same as the structure of the first broadband matching network 12 described above, and the structure of the second broadband matching network 22 may also refer to fig. 2 to 5. It will be appreciated that the form of the second broadband matching network 22 may be different from the form of the first broadband matching network 12, and that the parameters of the various elements in the second broadband matching network 22 may be different from the parameters of the various elements in the first broadband matching network 12, e.g., the inductance value, capacitance value may be different.

The second feed 23 may be provided on a circuit board of the electronic device, for example on a motherboard, or may be provided on a separate small board. The second feed 23 is electrically connected to the second broadband matching network 22. Wherein the second feed 23 is configured to provide a second excitation signal and to feed the second excitation signal to the second feed point 211 via the second broadband matching network 22. In some embodiments, the second excitation signal may also be a low frequency (LB) excitation signal.

The second broadband matching network 22 is configured to provide broadband impedance matching for the second radiator 21, so that the second radiator 21 is excited by the second excitation signal to support a second radiation mode, and the second radiation mode covers a plurality of low-frequency bands, so that the second radiator 21 can radiate wireless signals in the plurality of low-frequency bands, thereby having a larger bandwidth. For example, in one possible example, the second radiation pattern may also cover a plurality of low frequency bands of B5, B8, B28, etc.

In some embodiments, the first radiator 11 may be configured as a low frequency primary set antenna (LB PRX) and the second radiator 21 may be configured as a low frequency diversity antenna (LB DRX). Therefore, the first radiator 11 and the second radiator 21 can realize the main set transmission/reception and diversity reception of a plurality of low frequency bands, for example, the main set transmission/reception and diversity reception of a plurality of low frequency bands such as B5, B8, and B28.

In some embodiments, referring to fig. 10, fig. 10 is a schematic diagram of a second resonant current distribution of an electronic device 100 according to an embodiment of the present application.

The second radiator 21 also comprises a third free end 21a. The third free end 21a faces away from the first ground point 212. The second feeding point 211 is located between the first ground point 212 and the third free end 21a.

Wherein the second radiation pattern supported by the second radiator 21 is a composite left-right-hand (CRLH) pattern. The second radiation mode forms a third resonant current I between the first ground point 212 and the third free end 21a ₃ 。

Referring to fig. 11 and 12, fig. 11 is a schematic diagram of a second S parameter of the electronic device 100 according to the embodiment of the present application, and fig. 12 is a schematic diagram of a second radiation efficiency of the electronic device 100 according to the embodiment of the present application.

The second radiator 21, the second broadband matching network 22, and the second feed 23 may together form a second antenna. Fig. 11 is a schematic diagram of S parameters of the second antenna, and fig. 12 is a schematic diagram of radiation efficiency of the second antenna.

As shown in fig. 11, the second antenna may cover a plurality of low frequency bands. Wherein, the resonance frequency corresponding to the mark point 1 is about 0.7GHz, and the resonance frequency corresponding to the mark point 2 is about 0.97GHz.

As shown in fig. 12, S3 represents a theoretical radiation efficiency curve of the second antenna, and S4 represents a total radiation efficiency curve of the second antenna. Wherein, the resonance frequency corresponding to the mark point 1 is about 0.7GHz, and the radiation efficiency is about-12.16 dB. The resonance frequency corresponding to the mark point 2 is about 0.8GHz, and the radiation efficiency is about-11.51 dB. The resonance frequency corresponding to the mark point 3 is about 0.95GHz, and the radiation efficiency is about-12.64 dB. As can be seen from fig. 12, each low frequency band of the second antenna has good radiation efficiency.

In this embodiment, the second broadband matching network 22 provides broadband impedance matching for the second radiator 21, so that the second radiator 21 supports the second radiation mode, and the second radiator 21 can cover a plurality of low-frequency bands, so that the frequency band of the second radiator 21 is not required to be switched by the antenna switch, the antenna switch of the second radiator 21 can be further saved, and the overall antenna cost is further saved.

In some embodiments, referring to fig. 13, fig. 13 is a schematic diagram of a third structure of an electronic device 100 according to an embodiment of the present application. The electronic device 100 further comprises a third radiator 31, a fourth radiator 32, a third feed 34 and a second matching module 35.

The third radiator 31 and the fourth radiator 32 may be antenna radiators in the form of FPC, LDS, PDS, MDA, or may be antenna radiators formed by conductor structures of electronic devices, metal wires on circuit boards, or the like.

The third radiator 31 and the fourth radiator 32 are each disposed at a distance from the first radiator 11. In one possible example, the fourth radiator 32 is located between the third radiator 31 and the first radiator 11. Wherein a gap 33 is provided between the fourth radiator 32 and the third radiator 31, and the fourth radiator 32 is coupled to the third radiator 31 through the gap 33.

The third radiator 31 includes a third feeding point 311 and a second ground point 312 which are disposed at intervals. The second ground point 312 is grounded, for example, may be electrically connected to a system ground of the electronic device to achieve grounding. The fourth radiator 32 comprises a second tuning point 321.

The third feed 34 may be provided on a circuit board of the electronic device, such as on a motherboard, or may be provided on a separate die. The third feed 34 is electrically connected to the third feed point 311. The third feed 34 is used for providing a third excitation signal and feeding the third excitation signal to the third feeding point 311. In some embodiments, the third excitation signal may be a Mid High Band (MHB) excitation signal.

The second matching module 35 may be denoted as M2. Wherein the second matching module 35 is electrically connected to the second tuning point 321. The second matching module 35 is grounded, for example, may be electrically connected to the system ground of the electronic device to achieve grounding. The second matching module 35 is an impedance module. In some embodiments, the second matching module 35 includes at least one of inductance, capacitance, i.e., the second matching module 35 may be an inductance, capacitance, or a combination of inductance and capacitance circuit.

Wherein the third excitation signal is used to excite the third radiator 31 and the fourth radiator 32 to support the third radiation mode and the fourth radiation mode together. The third radiation mode and the fourth radiation mode jointly cover a plurality of medium-high frequency bands. In practical application, an inductance may be disposed between the third feed 34 and the third feed point 311, and the resonance frequency of the third radiation mode may be adjusted by the inductance; the resonance frequency of the fourth radiation pattern can be tuned by the second matching module 35.

For example, in one possible example, the third radiation pattern and the fourth radiation pattern collectively cover a plurality of intermediate-high frequency bands such as B1 (frequency range 1920MHz to 2170 MHz), B3 (frequency range 1710MHz to 1880 MHz), B40 (frequency range 2300MHz to 2400 MHz), and B41 (frequency range 2496MHz to 2690 MHz).

In some embodiments, referring to fig. 14 and 15, fig. 14 is a schematic diagram of a third resonant current distribution of the electronic device 100 according to an embodiment of the present application, and fig. 15 is a schematic diagram of a fourth resonant current distribution of the electronic device 100 according to an embodiment of the present application.

The third radiator 31 further comprises a fourth free end 31a. The fourth free end 31a faces away from the second ground point 312. The third feeding point 311 is located between the second ground point 312 and the fourth free end 31a. The gap 33 is located between the fourth free end 31a and the fourth radiator 32.

Wherein the portion between the second ground point 312 and the fourth free end 31a and the fourth radiator 32 are used to jointly support the third radiation mode. The third radiation mode forms a fourth resonant current I between the second ground point 312 and the fourth free end 31a ₄ And forming a fifth resonant current I at the fourth radiator 32 ₅ Fourth resonant current I ₄ And a fifth resonant current I ₅ In the same direction as shown in fig. 14. In some embodiments, the third radiation pattern is a composite left-right-handed (CRLH) pattern.

The portion between the third feeding point 311 and the fourth free end 31a and the fourth radiator 32 serve to support the fourth radiation mode in common. The fourth radiation mode forms a sixth resonant current I between the third feed point 311 and the fourth free end 31a ₆ And forming a seventh resonance current I at the fourth radiator 32 ₇ Sixth resonant current I ₆ With a seventh resonant current I ₇ In the same direction as shown in fig. 15. In some embodiments, the fourth radiation pattern is a half wavelength spurious radiation pattern, i.e., a half wavelength spurious radiation pattern of the mid-high frequency band.

Referring to fig. 16 and 17, fig. 16 is a schematic diagram of a third S parameter of the electronic device 100 according to the embodiment of the present application, and fig. 17 is a schematic diagram of a third radiation efficiency of the electronic device 100 according to the embodiment of the present application.

The third radiator 31, the fourth radiator 32, the third feed 34, and the second matching module 35 may together form a third antenna. Fig. 16 is a schematic diagram of S parameters of the third antenna, and fig. 17 is a schematic diagram of radiation efficiency of the third antenna.

As shown in fig. 16, the third antenna may cover a plurality of intermediate and high frequency bands. Wherein, the resonance frequency corresponding to the mark point 1 is about 1.92GHz, and the resonance frequency corresponding to the mark point 2 is about 2.87GHz.

As shown in fig. 17, S5 represents a theoretical radiation efficiency curve of the third antenna, and S6 represents a total radiation efficiency curve of the third antenna. Wherein, the resonance frequency corresponding to the mark point 1 is about 2.06GHz, and the radiation efficiency is about-2.69 dB. The resonance frequency corresponding to the mark point 2 is about 2.8GHz, and the radiation efficiency is about-3.57 dB. The resonance frequency corresponding to the mark point 3 is about 2.4GHz, and the radiation efficiency is about-3.58 dB. As can be seen from fig. 17, each of the medium-high frequency bands of the third antenna has good radiation efficiency.

Referring to table 1, table 1 is a radiation efficiency table (radiation efficiency unit is dB) of the electronic apparatus 100, in which one example of radiation efficiencies of a plurality of low frequency bands, a plurality of middle-high frequency bands is included.

Table 1 table of radiant efficiency

As can be seen from table 1, the electronic device 100 has good radiation efficiency in transmitting the low frequency bands such as B28, B5, and B8, and in transmitting the medium and high frequency bands such as B3, B1, B40, and B41.

In this embodiment, the third radiator 31 and the fourth radiator 32 can support the third radiation mode and the fourth radiation mode together, so as to cover a plurality of medium-high frequency bands together, so that the medium-high frequency band is not required to be switched by the antenna switch, and therefore, the medium-high frequency antenna switch can be saved, and the overall antenna cost is further saved.

In some embodiments, referring to fig. 18, fig. 18 is a fourth structural schematic diagram of an electronic device 100 according to an embodiment of the present application. The electronic device 100 further comprises a fifth radiator 41 and a fourth feed 42.

The fifth radiator 41 may be an antenna radiator in a form of FPC, LDS, PDS, MDA, or may be an antenna radiator formed by a conductor structure of an electronic device, a metal wire on a circuit board, or the like.

The fifth radiator 41 is disposed at a distance from the first radiator 11. The fifth radiator 41 includes a fourth feeding point 411. In some embodiments, the fifth radiator 41 may be formed integrally with the second radiator 21 and share the first ground point 212 with the second radiator 21 to achieve the ground. It will be appreciated that the fifth radiator 41 shares the first ground point 212 with the second radiator 21, and that no separate ground point need be provided on the fifth radiator 41, so that the design of the ground point can be simplified.

The fourth feed 42 may be provided on a circuit board of the electronic device, such as a motherboard, or may be provided on a separate die. The fourth feed 42 is electrically connected to the fifth radiator 41. The fourth feed 42 is used for providing a fourth excitation signal, and feeding the fourth excitation signal to the fourth feeding point 411. In some embodiments, the fourth excitation signal may be a mid-high frequency (MHB) excitation signal.

Wherein the fourth excitation signal is used to excite the fifth radiator 41 to support a fifth radiation mode. The fifth radiation pattern covers a plurality of intermediate-high frequency bands. For example, in one possible example, the fifth radiation pattern may also cover a plurality of intermediate-high frequency bands of B1, B3, B40, B41, etc.

In some embodiments, the third radiator 31 and the fourth radiator 32 are commonly configured as a medium-high frequency diversity antenna (MHB DRX), and the fifth radiator 41 is configured as a medium-high frequency main set antenna (MHB PRX). Therefore, the third radiator 31, the fourth radiator 32, and the fifth radiator 41 can realize the main set transmission/reception and diversity reception in the plurality of intermediate and high frequency bands, for example, the main set transmission/reception and diversity reception in the plurality of intermediate and high frequency bands such as B1, B3, B40, and B41.

In some embodiments, referring to fig. 19, fig. 19 is a fifth structural schematic diagram of an electronic device 100 according to an embodiment of the present application.

The electronic device 100 also includes a housing 50. The housing 50 may form a main body structure of the electronic device 100 and serve to mount or house functional components of the electronic device. For example, a motherboard and a battery module of the electronic device may be disposed inside the housing 50, and a camera module of the electronic device may be disposed on the housing 50.

The housing 50 includes a first side 51, a second side 52, a third side 53, and a fourth side 54 that are joined end to end. The first side 51 and the third side 53 are short sides, and the second side 52 and the fourth side 54 are long sides. That is, the length of the first side edge 51 is smaller than the length of the second side edge 52 and the length of the fourth side edge 54, and the length of the third side edge 53 is also smaller than the length of the second side edge 52 and the length of the fourth side edge 54.

In one possible example of an application, the first side 51 may be positioned at the bottom and the third side 53 may be positioned at the top during the vertical holding and use of the electronic device 100 by a user, and the second side 52 and the fourth side 54 may be positioned on the left and right sides of the electronic device, respectively.

In some embodiments, a portion of the first radiator 11 is disposed on the first side 51, and another portion is disposed on the second side 52, and the first radiator 11 may be generally "L" shaped. The second radiator 21 is disposed on the fourth side 54; alternatively, a part of the first and second portions may be provided on the fourth side 54, and another part may be provided on a corner formed by connecting the fourth side 54 and the third side 53. The third radiator 31 and the fourth radiator 32 are disposed on the first side 51, and for example, the fourth radiator 32 may be located between the first radiator 11 and the third radiator 31. The fifth radiator 41 is disposed on the third side 53, for example, the fifth radiator 41 may be connected to and formed integrally with the second radiator 21.

In practical applications, the motherboard of the electronic device 100 may be disposed near the third side 53, and the battery module may be disposed near the first side 51. In addition, the electronic device 100 may also include a speaker, a USB interface, a SIM module. Wherein the speaker may be arranged close to the first radiator 11, the USB interface may be arranged close to the fourth radiator 32, and the SIM module may be arranged close to the third radiator 31.

In the description of the present application, it should be understood that terms such as "first," "second," and the like are used merely to distinguish between similar objects and should not be construed to indicate or imply relative importance or implying any particular order of magnitude of the technical features indicated.

It should be noted that, in the embodiments of the present application, the "electrical connection" may be a direct connection between two electrical components to implement electrical connection, or may be an indirect connection to implement electrical connection. For example, the electrical connection between a and B may be a direct connection between a and B, or an indirect connection between a and B via one or more other electrical components.

The electronic device provided by the embodiment of the application is described in detail above. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, with the description of the examples given above only to assist in understanding the present application. Meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.

Claims

1. An electronic device, comprising:

2. The electronic device of claim 1, wherein:

the first radiator comprises a first free end and a second free end which are opposite to each other, and the first feed point and the first tuning point are both positioned between the first free end and the second free end;

the first radiation mode is a radiation mode of a T antenna, a first resonance current is formed between the first free end and the first feed point by the first radiation mode, a second resonance current is formed between the second free end and the first feed point by the second radiation mode, and the first resonance current is opposite to the second resonance current.

3. The electronic device of claim 1, wherein the first broadband matching network comprises at least one broadband matching unit, each broadband matching unit comprising:

the first impedance element is connected in series between the first feed source and the first feed point, and is one of a capacitor and an inductor;

and one end of the second impedance element is electrically connected between the first feed source and the first feed point, the other end of the second impedance element is grounded, and the second impedance element is the other one of a capacitor and an inductor.

4. The electronic device of claim 3, wherein the first broadband matching network further comprises:

the impedance matching unit is connected in series between the first feed source and the first feed point, and comprises at least one of a capacitor and an inductor.

5. The electronic device of claim 4, wherein:

the first impedance element is a capacitor, and the capacitor is connected in series between the first feed source and the first feed point;

the second impedance element is a first inductor, one end of the first inductor is electrically connected between the capacitor and the first feed point, and the other end of the first inductor is grounded;

the impedance matching unit comprises a second inductor and a third inductor, the second inductor is connected in series between the first feed source and the capacitor, one end of the third inductor is electrically connected between the second inductor and the capacitor, and the other end of the third inductor is grounded.

6. The electronic device of claim 1, wherein:

the first matching module comprises at least one of inductance and capacitance.

7. The electronic device of any one of claims 1-6, further comprising:

the second radiator is arranged at intervals with the first radiator, and comprises a second feed point;

a second broadband matching network electrically connected to the second feed point;

the second feed source is electrically connected with the second broadband matching network and is used for providing a second excitation signal;

the second broadband matching network is used for providing broadband impedance matching for the second radiator, so that the second excitation signal excites the second radiator to support a second radiation mode, and the second radiation mode covers a plurality of low-frequency bands.

8. The electronic device of claim 7, wherein:

the second radiator comprises a first grounding point and a third free end, the second feed point is positioned between the first grounding point and the third free end, and the first grounding point is grounded;

the second radiation mode is a composite left-right hand mode, and forms a third resonant current between the first ground point and the third free end.

9. The electronic device of claim 7, wherein:

the first radiator is configured as a low frequency main set antenna;

the second radiator is configured as a low frequency diversity antenna.

10. The electronic device of claim 7, wherein:

the first radiation mode and the second radiation mode cover the frequency bands B5, B8 and B28.

11. The electronic device of any one of claims 1-6, further comprising:

a third radiator spaced apart from the first radiator, the third radiator including a third feeding point;

a fourth radiator having a gap with the third radiator, the fourth radiator being coupled to the third radiator through the gap, the fourth radiator including a second tuning point;

the third feed source is electrically connected with the third feed point and is used for providing a third excitation signal;

the second matching module is electrically connected with the second tuning point and is grounded;

the third excitation signal is used for exciting the third radiator and the fourth radiator to jointly support a third radiation mode and a fourth radiation mode, and the third radiation mode and the fourth radiation mode jointly cover a plurality of medium-high frequency bands.

12. The electronic device of claim 11, wherein:

the third radiator comprises a second grounding point and a fourth free end, the third feed point is positioned between the second grounding point and the fourth free end, and the gap is positioned between the fourth free end and the fourth radiator;

the portion between the second ground point and the fourth free end and the fourth radiator are for supporting the third radiation pattern in common, and the portion between the third feed point and the fourth free end and the fourth radiator are for supporting the fourth radiation pattern in common.

13. The electronic device of claim 11, wherein:

the third radiation mode is a composite left-right hand mode;

the fourth radiation pattern is a half wavelength parasitic radiation pattern.

14. The electronic device of claim 11, wherein:

the second matching module comprises at least one of inductance and capacitance.

15. The electronic device of claim 11, wherein:

the third radiation mode and the fourth radiation mode jointly cover the frequency bands B1, B3, B40 and B41.

16. The electronic device of claim 11, further comprising:

a fifth radiator disposed at a distance from the first radiator;

the fourth feed source is electrically connected with the fifth radiator and used for providing a fourth excitation signal, the fourth excitation signal is used for exciting the fifth radiator to support a fifth radiation mode, and the fifth radiation mode covers a plurality of medium-high frequency bands.

17. The electronic device of claim 16, wherein:

the third radiator and the fourth radiator are commonly configured as a medium-high frequency diversity antenna;

the fifth radiator is configured as a medium-high frequency main set antenna.

18. The electronic device of claim 7, further comprising:

the shell comprises a first side, a second side, a third side and a fourth side which are connected end to end, wherein the first side and the third side are short sides, and the second side and the fourth side are long sides;

the first radiator part is arranged on the first side edge, and the other part is arranged on the second side edge;

the second radiator is arranged on the fourth side edge.

19. The electronic device of claim 16, further comprising:

the third radiator and the fourth radiator are arranged on the first side edge;

the fifth radiator is arranged on the third side edge.