CN113013593A

CN113013593A - Antenna assembly and electronic equipment

Info

Publication number: CN113013593A
Application number: CN202110206591.8A
Authority: CN
Inventors: 吴小浦
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-22
Anticipated expiration: 2041-02-24
Also published as: CN113013593B

Abstract

The application provides an antenna assembly and an electronic device. The antenna assembly comprises a first antenna and a second antenna. The first antenna comprises a first radiating body and a first signal source, the first radiating body is provided with a first feed point, and the first signal source is electrically connected to the first feed point. The second antenna comprises a second radiator, a second signal source and a third signal source, wherein a first gap is formed between the second radiator and the first radiator, and the second radiator is capacitively coupled with the first radiator through the first gap so that the first signal source receives and transmits electromagnetic wave signals of a first frequency band through the first radiator and part of the second radiator, the second radiator is provided with a second feeding point and a third feeding point which are arranged at intervals, and the second signal source is electrically connected with the second feeding point so that the second antenna receives and transmits the electromagnetic wave signals of a second frequency band; the third signal source is electrically connected with the third feeding point, so that the second antenna receives and transmits electromagnetic wave signals of a third frequency band. The antenna assembly of the application has a good communication effect.

Description

Antenna assembly and electronic equipment

Technical Field

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

Background

With the development of technology, electronic devices such as mobile phones and the like with communication functions have higher popularity and higher functions. Antenna assemblies are often included in electronic devices to implement communication functions of the electronic devices. However, the antenna assembly in the electronic device in the related art has not good enough communication performance, and there is room for improvement.

Disclosure of Invention

In a first aspect, the present application provides an antenna assembly. The antenna assembly includes:

the antenna comprises a first antenna and a second antenna, wherein the first antenna comprises a first radiating body and a first signal source, the first radiating body is provided with a first feeding point, and the first signal source is electrically connected to the first feeding point;

the second antenna comprises a second radiator, a second signal source and a third signal source, wherein a first gap is formed between the second radiator and the first radiator, and the second radiator is capacitively coupled with the first radiator through the first gap, so that the first signal source receives and transmits electromagnetic wave signals of a first frequency band through the first radiator and part of the second radiator, the second radiator is provided with a second feeding point and a third feeding point which are arranged at intervals, the second feeding point is adjacent to the first radiator compared with the third feeding point, and the second signal source is electrically connected with the second feeding point, so that the second antenna receives and transmits the electromagnetic wave signals of a second frequency band; the third signal source is electrically connected with the third feeding point, so that the second antenna receives and transmits electromagnetic wave signals of a third frequency band.

In a second aspect, the present application also provides an electronic device comprising an antenna assembly as described in the first aspect.

According to the antenna assembly provided by the embodiment of the application, the receiving and sending of the electromagnetic wave signals of the first frequency band, the electromagnetic wave signals of the second frequency band and the electromagnetic wave signals of the third frequency band can be realized by using fewer antenna radiators, and the coverage of a wider frequency band is realized, so that the antenna assembly has a better communication effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of components of the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a first frequency band.

Fig. 3 is a return loss curve diagram of the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a first frequency band.

Fig. 4 is a schematic diagram of components of the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a second frequency band.

Fig. 5 is a schematic diagram of a second matching circuit according to an embodiment of the present disclosure.

Fig. 6 is a schematic diagram of a second matching circuit according to another embodiment of the present disclosure.

Fig. 7 is a return loss curve diagram of the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a second frequency band.

Fig. 8 is a schematic diagram of components of the antenna assembly of fig. 1 for transceiving electromagnetic wave signals in a third frequency band.

Fig. 9 is a return loss curve diagram of the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a third frequency band.

Fig. 10 is a schematic view of an antenna assembly provided in another embodiment of the present application.

Fig. 11 is a schematic diagram of components of the antenna assembly shown in fig. 10 for transceiving electromagnetic wave signals in a fourth frequency band.

Fig. 12 is a schematic view of an antenna assembly provided in accordance with yet another embodiment of the present application.

Fig. 13 is a return loss curve diagram of the antenna assembly shown in fig. 10 for transceiving electromagnetic wave signals in a fourth frequency band.

Fig. 14 is a schematic diagram of an antenna assembly provided in another embodiment of the present application.

Fig. 15 is a schematic diagram of an antenna assembly provided in accordance with yet another embodiment of the present application.

Fig. 16 is a schematic diagram of an antenna assembly provided in accordance with yet another embodiment of the present application.

Fig. 17 is a perspective view of an electronic device according to an embodiment of the present application.

FIG. 18 is a cross-sectional view taken along line I-I of FIG. 17, according to one embodiment.

Fig. 19 is a plan view of a metal frame according to an embodiment of the present application.

Fig. 20 is a schematic view of the electronic device in a portrait screen state.

Fig. 21 is a schematic view of the electronic apparatus in a landscape state.

Fig. 22 is a schematic view of an electronic device according to another 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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present application provides an antenna assembly 10, the antenna assembly 10 can be applied to an electronic device 1, the electronic device 1 includes but is not limited to an electronic device 1 having a communication function such as a mobile phone, an internet device (MID), an electronic book, a Portable Player Station (PSP) or a Personal Digital Assistant (PDA).

Referring to fig. 1, fig. 1 is a schematic diagram of an antenna element according to an embodiment of the present application. The antenna assembly 10 includes a first antenna 110 and a second antenna 120. The first antenna 110 includes a first radiator 111 and a first signal source 112, the first radiator 111 has a first feeding point P1, and the first signal source 112 is electrically connected to the first feeding point P1. The second antenna 120 includes a second radiator 121, a second signal source 122 and a third signal source 123, wherein a first slot 1211 is formed between the second radiator 121 and the first radiator 111, and the second radiator 121 is capacitively coupled to the first radiator 111 through the first slot 1211, so that the first signal source 112 receives and transmits electromagnetic wave signals of a first frequency band through the first radiator 111 and a portion of the second radiator 121, the second radiator 121 has a second feeding point P2 and a third feeding point P3 which are arranged at intervals, the second feeding point P2 is arranged adjacent to the first radiator 111 than the third feeding point P3, and the second signal source 122 is electrically connected to the second feeding point P2, so that the second antenna 120 receives and transmits electromagnetic wave signals of a second frequency band; the third signal source 123 is electrically connected to the third feeding point P3, so that the second antenna 120 transmits and receives electromagnetic wave signals in a third frequency band.

Furthermore, it should be noted that the terms "first", "second", and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing different objects and are not used for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The first signal source 112 is configured to generate a first excitation signal, which is applied to the first radiator 111, so that the first radiator 111 radiates an electromagnetic wave signal. The second signal source 122 is configured to generate a second excitation signal, and the second excitation signal is applied to the second radiator 121, so that the second radiator 121 radiates an electromagnetic wave signal. The third signal source 123 is configured to generate a third excitation signal, and the third excitation signal is applied to a third radiator 131, so that the third radiator 131 radiates an electromagnetic wave signal. When the antenna assembly 10 is used in an electronic device 1 (see fig. 18), the first signal source 112 may be disposed on a circuit board 50 (see fig. 18) in the electronic device 1. The second signal source 122 may also be arranged on the circuit board 50 in the electronic device 1. The third signal source 123 may also be disposed on a circuit board of the electronic device 1.

The first radiator 111 is a Flexible Printed Circuit (FPC) antenna radiator, or a Laser Direct Structuring (LDS) antenna radiator, or a Print Direct Structuring (PDS) antenna radiator, or a metal stub.

The second radiator 121 is an FPC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal stub. In one embodiment, the second radiator 121 is the same type as the first radiator 111. In another embodiment, the second radiator 121 is of a different type than the first radiator 111.

The second radiator 121 and the first radiator 111 have a first slot 1211 therebetween, and are capacitively coupled to the first radiator 111 through the first slot 1211, that is, the first radiator 111 and the second radiator 121 have a common caliber. In other words, the first radiator 111 and the second radiator 121 are disposed at an interval and coupled to each other.

A dimension d of the first gap 1211 between the first radiator 111 and the second radiator 121₁Comprises the following steps: d is not less than 0.5mm₁Less than or equal to 2.0 mm. Referring specifically to FIG. 1, the dimension d is illustrated in FIG. 1₁. A dimension d of the first gap 1211 between the first radiator 111 and the second radiator 121₁The range is selected so as to ensure a good coupling effect between the first radiator 111 and the second radiator 121. Further optionally, d is 0.5mm ≦ d₁Less than or equal to 1.5mm, so that the coupling effect between the first radiator 111 and the second radiator 121 is better.

When the antenna assembly 10 is in operation, the first excitation signal generated by the first signal source 112 may be coupled to the second radiator 121 through the first slot 1211, in other words, when the first antenna 110 is in operation, the first radiator 111 and the second radiator 121 of the second antenna 120 may be utilized to transmit and receive electromagnetic wave signals, so that the first antenna 110 may operate in a wider frequency band. Likewise, when the antenna assembly 10 is in operation, the second excitation signal generated by the second signal source 122 may be coupled to the first radiator 111 through the first slot 1211, in other words, when the second antenna 120 is in operation, the second radiator 121 and the first radiator 111 in the first antenna 110 may be utilized to transmit and receive electromagnetic wave signals, so that the second antenna 120 may operate in a wider frequency band. Since the first antenna 110 can utilize both the first radiator 111 and the second radiator 121 during operation, and the second antenna 120 can utilize both the second radiator 121 and the first radiator 111 during operation, multiplexing of radiators and spatial multiplexing are achieved, which is beneficial to reducing the size of the antenna assembly 10. When the antenna assembly 10 is applied to the electronic device 1, the stacking space for stacking the antenna assembly 10 in the electronic device 1 can be saved.

In this embodiment, the first frequency Band is a medium-High frequency (MHB) and Ultra-High frequency (UHB) frequency Band, that is, an MHB + UHB frequency Band, the second frequency Band is a GPS-L5 frequency Band, and the third frequency Band is a (Lower Band, LB) frequency Band. It should be noted that the frequency range of the MHB is 1000MHz to 3000MHz, and the frequency range of the UHB is 3000MHz to 6000 MHz. The LB frequency range is below 1000 MHz. The LB frequency band is, for example, electromagnetic wave signals of all low frequency bands of 4G (also called Long Term Evolution, LTE) and 5G (also called New Radio, NR). The GPS mentioned herein indicates Positioning, including but not limited to Global Positioning System (GPS) Positioning, beidou Positioning, GLONASS Positioning, GALILEO Positioning, and the like. The central resonance frequency point of the GPS-L5 frequency band is 1176 MHz.

With reference to the foregoing description, the length of the first radiator 111 is smaller than that of the second radiator 121, and the first frequency band of the electromagnetic wave signal received and transmitted by the first antenna 110 is higher than the frequency band of the electromagnetic wave signal of the third frequency band received and transmitted by the second antenna 120.

In the related art, the second antenna 120 can only receive and transmit electromagnetic wave signals of one frequency band, and if the antenna assembly 10 needs to support electromagnetic wave signals of a second frequency band, an additional antenna needs to be provided to support electromagnetic wave signals of the second frequency band; it can be seen that, in the related art, more antennas are required to support the electromagnetic wave signals of the first frequency band, the second frequency band, and the third frequency band, which results in a larger size of the antenna assembly 10. In the antenna assembly 10 of the present embodiment, there is no need to additionally provide an antenna to support the electromagnetic wave signals of the electromagnetic wave signals in the second frequency band, and therefore, the size of the antenna assembly 10 is small. Providing additional antennas to support electromagnetic wave signals in the second frequency band may also result in higher cost of the antenna assembly 10; the difficulty of stacking the antenna assembly 10 with other devices increases when the antenna assembly 10 is applied in the electronic device 1. In this embodiment, the antenna assembly 10 does not need to additionally provide an antenna to support the electromagnetic wave signal of the second frequency band, so that the cost of the antenna assembly 10 is low; when the antenna module is applied to the electronic device 1, the stacking difficulty is low. In addition, providing additional antennas to support the second band of electromagnetic wave signals may also result in increased radio frequency link insertion loss for the antenna assembly 10. In the antenna assembly 10 provided by the present application, the second antenna 120 can receive and transmit electromagnetic wave signals in the second frequency band and electromagnetic wave signals in the third frequency band, so that the insertion loss of the radio frequency link can be reduced.

In addition, the antenna assembly 10 provided in the present embodiment may utilize fewer antenna radiators to implement the transceiving of the electromagnetic wave signal in the first frequency band, the electromagnetic wave signal in the second frequency band, and the electromagnetic wave signal in the third frequency band, thereby implementing the coverage of a wider frequency band, and therefore, the antenna assembly 10 has a better communication effect.

Referring to fig. 1, in the present embodiment, the first antenna 110 further includes a first matching circuit M1 and a first adjusting circuit T1. The first signal source 112 electrically connects the first matching circuit M1 to the first feeding point P1. The first matching circuit M1 and the first adjusting circuit T1 are configured to adjust a resonant frequency of an electromagnetic wave signal in a first frequency band according to a preset frequency selection parameter, so as to implement Carrier Aggregation (CA) in the first frequency band and LTE NR Double connection (ENDC) combination of a 4G radio access network and 5G-NR.

In this embodiment, the frequency selection parameters (including the capacitance, inductance, and resistance) of the first matching circuit M1 and the frequency selection parameters (including the capacitance, inductance, and resistance) of the first adjusting circuit T1 are set, so that the resonant frequency of the electromagnetic wave signal in the first frequency band can be adjusted, thereby implementing CA and endec combinations in the first frequency band.

In this embodiment, one end of the first regulator circuit T1 is grounded, and the other end is electrically connected to the first matching circuit M1. The first regulating circuit T1 may be connected in parallel with the first matching circuit M1, or in series. The first regulating circuit T1 may be integrated with the first matching circuit M1 as one module, or may be a separate module from the first matching circuit M1. It is understood that, in other embodiments, one end of the first regulating circuit T1 is grounded, and the other end is electrically connected to the first radiator 111 (see fig. 14).

Referring to fig. 1 again, and referring to fig. 2 and fig. 3 together, fig. 2 is a schematic diagram of components corresponding to the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a first frequency band; fig. 3 is a return loss curve diagram of the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a first frequency band. In fig. 3, the horizontal axis is frequency in MHz; the vertical axis represents Return Loss (RL) in dB. The second radiator 121 has a first connection O1, and the first connection O1 is located between the second feeding point P2 and a third feeding point P3. The second antenna 120 includes a second matching circuit M2 and a third matching circuit M3. In the schematic diagram of the present embodiment, the second matching circuit M2 is denoted by M2, and the third matching circuit M3 is denoted by M3. The second signal source 122 electrically connects the second matching circuit M2 to the second feeding point P2, one end of the third matching circuit M3 is grounded, and the other end is electrically connected to the first connection O1; the first radiator 111 further has a first ground GND1 departing from the first slot 1211, and the first ground GND1 is grounded.

The eighth wavelength mode from the first ground GND1 to the first slot 1211 is used for supporting the transceiving of the electromagnetic wave signal of the first sub-band, and is labeled as mode 1 in fig. 3 for the convenience of illustration. The eighth wavelength mode of the first connection O1 to the first slot 1211 is used for supporting the transceiving of the electromagnetic wave signal of the second sub-band, and is labeled as mode 2 in fig. 3 for convenience of illustration. The quarter-wavelength mode from the first ground GND1 to the first slot 1211 is used for supporting the transceiving of the electromagnetic wave signal of the third sub-band, and is labeled as mode 3 in fig. 3 for convenience of illustration. The quarter-wavelength mode from the first feeding point P1 to the first slot 1211 is used to support transceiving of electromagnetic wave signals of a fourth frequency sub-band, where the first frequency sub-band includes the first frequency sub-band, the second frequency sub-band, the third frequency sub-band, and the fourth frequency sub-band, and is labeled as mode 4 in fig. 3 for convenience of illustration. It should be noted that the mode 1, the mode 2, the mode 3, and the mode 4 shown in fig. 3 are only one mode case of each sub-band included in the first frequency band, and the resonant frequency points of each sub-band can be adjusted by setting the frequency selection parameters of the first matching circuit M1 and the first adjusting circuit T1. In addition, the antenna assembly 10 can also cover the WiFi-5G frequency band or a higher frequency band by adjusting the frequency selection parameters of the first matching circuit M1 and the first adjusting circuit T1 to adjust the mode 3 and the mode 4.

It should be noted that, the above description of the mode 1 corresponding to the first sub-band, the mode 2 corresponding to the second sub-band, the mode 3 corresponding to the third sub-band, and the mode 4 corresponding to the fourth sub-band included in the first frequency band is a description of a main characteristic representation of the electromagnetic wave signal supporting the first frequency band, when the modes 1, 2, 3, and 4 are operated, the first radiator 111 and the second radiator 121 are not independent of each other, and since the first radiator 111 is coupled to the second radiator 121 through the first slot 1211, a current on the first radiator 111 is also coupled to the second radiator 121 through a coupling effect, and accordingly, a current on the second radiator 121 is also coupled to the first radiator 111 through a coupling effect.

As can be seen from fig. 3, the first frequency band is the MHB + UHB frequency band, and therefore, the antenna shown in fig. 2 is a first MHB + UHB antenna. As can be seen from fig. 3, the first MHB + UHB antenna can simultaneously cover all MHB + UHB frequency bands of Long Term Evolution (LTE) and all MHB + UHB frequency bands of New Radio (NR). The MHB + UHB frequency band of the LTE comprises an LTE-1/2/3/4/7/32/40/41 frequency band, and the MHB + UHB frequency band of the NR comprises an NR-1/3/7/40/41/77/78/79 frequency band.

Referring to fig. 4, fig. 4 is a schematic diagram of components of the antenna assembly shown in fig. 1 corresponding to transceiving electromagnetic wave signals in a second frequency band. In this embodiment, the eighth wavelength mode of the first connection O1 to the first slot 1211 is used for supporting the transmission and reception of electromagnetic wave signals of the second frequency band.

In this embodiment, the second feeding point P2 is a capacitive coupling feeding, which means that the second signal source 122 is electrically connected to the second feeding point P2 via a second matching circuit M2, and the second matching circuit M2 includes a capacitor in the second matching circuit M2 in the formed feeding path, and the second matching circuit M2 is described in detail later. The impedance of the third matching circuit M3 is zero or greater than zero but relatively small. In other words, the second signal source 122 is capacitively coupled at the second feeding point P2 and is low impedance down at the third matching circuit M3.

Referring to fig. 5, fig. 5 is a schematic diagram of a second matching circuit according to an embodiment of the present disclosure. In this embodiment, the second matching circuit M2 includes a first capacitor C23, and the second signal source 122 is electrically connected to the second feeding point P2 via the first capacitor C23.

The second signal source 122 is electrically connected to the second feeding point P2 via the first capacitor C23, i.e. capacitively coupled feeding is performed at the second feeding point P2. In other words, the first capacitor C23 is a capacitive coupling feed capacitor. The second matching circuit M2 comprises a first capacitor C23 for exciting electromagnetic wave signals of the second frequency band.

Further, in the present embodiment, the second matching circuit M2 further includes a band-pass filtering unit 1241 for performing band-pass filtering on the electromagnetic wave signal of the second frequency band. One end of the band-pass filter unit 1241 is electrically connected to one end of the first capacitor C23 away from the second feeding point P2, the other end of the band-pass filter unit 1241 is electrically connected to the second feeding point P2, and the band-pass filter unit 1241 includes a second capacitor C21 and an inductor L21 connected in series.

The band-pass filter unit 1241 performs band-pass filtering on the electromagnetic wave signals of the second frequency band, in other words, the band-pass filter unit 1241 can pass the electromagnetic wave signals of the second frequency band, and for the electromagnetic wave signals of other frequency bands except the electromagnetic wave signals of the second frequency band, the electromagnetic wave signals of other frequency bands are equivalent to a large inductance L21 or a small capacitance, and cannot pass the electromagnetic wave signals of other frequency bands. Therefore, the arrangement of the band-pass filter unit 1241 can make the electromagnetic wave signal of the second frequency band form better isolation with the electromagnetic wave signal of other frequency bands, thereby greatly reducing the influence of the antenna for receiving and transmitting the electromagnetic wave signal of the second frequency band on other antennas.

The band-pass filter unit 1241 includes a second capacitor C21 and an inductor L21 connected in series, in this embodiment, one end of the second capacitor C21 is electrically connected to the first capacitor C23, and the other end of the second capacitor C21 is electrically connected to the first inductor L21 and the second feeding point P2.

Further, in this embodiment, the second matching circuit M2 further includes a third capacitor C22, one end of the third capacitor C22 is grounded, the other end of the third capacitor C22 is electrically connected to one end of the first capacitor C23 away from the second signal source 122, and the third capacitor C22 is used for adjusting a resonant frequency of the electromagnetic wave signal in the second frequency band.

It should be understood that, in fig. 5 and the related embodiments, the second matching circuit M2 is illustrated as including a first capacitor C23, a band-pass filtering unit 1241 and a third capacitor C22, and in other embodiments, the second matching circuit M2 includes the first capacitor C23 instead of the band-pass filtering unit 1241 and the third capacitor C22; alternatively, in other embodiments, the second matching circuit M2 includes the first capacitor C23 and the band-pass filter unit 1241, but does not include the third capacitor C22.

Referring to fig. 6, fig. 6 is a schematic diagram of a second matching circuit according to another embodiment of the present disclosure. In this embodiment, the second matching circuit M2 includes a first capacitor C23, and the second signal source 122 is electrically connected to the second feeding point P2 via the first capacitor C23.

Further, the second matching circuit M2 further includes a band-pass filtering unit 1241 for band-pass filtering the electromagnetic wave signal of the second frequency band. One end of the band-pass filter unit 1241 is electrically connected to one end of the first capacitor C23 away from the second feeding point P2, the other end of the band-pass filter unit 1241 is electrically connected to the second feeding point P2, and the band-pass filter unit 1241 includes a second capacitor C21 and an inductor L21 connected in series.

The second matching circuit M2 in this embodiment is different from the second matching circuit M2 in fig. 5 and the related description, in that in this embodiment, one end of the first inductor L21 is electrically connected to the first capacitor C23, and the other end of the first inductor L21 is electrically connected to the second capacitor C21 and the second feeding point P2.

Further, the second matching circuit M2 further includes a third capacitor C22, one end of the third capacitor C22 is grounded, the other end of the third capacitor C22 is electrically connected to one end of the first capacitor C23 away from the second signal source 122, and the third capacitor C22 is used for adjusting a resonant frequency point of the electromagnetic wave signal in the second frequency band.

Referring to fig. 7, fig. 7 is a schematic diagram of a return loss curve of the antenna assembly shown in fig. 1 for receiving and transmitting electromagnetic wave signals of the second frequency band. In fig. 7, the horizontal axis is frequency in MHz; the vertical axis represents Return Loss (RL) in dB. As can be seen from fig. 7, the second frequency band is a GPS-L5 frequency band, and the resonance frequency point of the second frequency band is 1176 MHz.

Referring to fig. 1, 8 and 9 together, fig. 8 is a schematic diagram of components corresponding to the antenna assembly in fig. 1 for transceiving electromagnetic wave signals in a third frequency band; fig. 9 is a return loss curve diagram of the antenna assembly shown in fig. 1 for transceiving electromagnetic wave signals in a third frequency band. In fig. 9, the horizontal axis is frequency in MHz; the vertical axis represents Return Loss (RL) in dB. In this embodiment, the second radiator 121 further has a second connection O2, and the second connection O2 is located at an end of the third feeding point P3 away from the first feeding point P1. The second antenna 120 also has a fourth matching circuit M4 and a second adjusting circuit T2. A second adjusting circuit T2 the third signal source 123 is electrically connected to the third feeding point P3 via the fourth matching circuit M4, the fourth matching circuit M4 is used for impedance matching the second antenna 120; the second adjusting circuit T2 is electrically connected to the second connection O2, the second adjusting circuit T2 is configured to adjust a resonant frequency point of the third frequency band, and the second antenna 120 receives and transmits electromagnetic wave signals of the third frequency band through an end of the second radiator 121 that is away from the first slot 1211 from the first connection O1 to the second radiator 121.

In fig. 9, each of the patterns (pattern 5, pattern 6, pattern 7, and pattern 8) has only one pattern at the same time. The second adjusting circuit T2 adjusts the resonant frequency point of the third frequency band, so that the resonant frequency points of the antenna assembly 10 when receiving and transmitting the electromagnetic wave signals of the third frequency band are different, specifically, referring to fig. 9, the resonant frequency points of the third frequency band corresponding to the mode 5, the mode 6, the mode 7, and the mode 8 are sequentially increased, in other words, the resonant frequency point of the third frequency band corresponding to the mode 5 is the lowest, and the resonant frequency point of the third frequency band corresponding to the mode 8 is the highest.

Referring to fig. 10 and 11, fig. 10 is a schematic diagram of an antenna assembly according to another embodiment of the present application; fig. 11 is a schematic diagram of components of the antenna assembly shown in fig. 10 for transceiving electromagnetic wave signals in a fourth frequency band. In the present embodiment, the antenna assembly 10 includes a first antenna 110 and a second antenna 120. Please refer to the description of the foregoing embodiments for the first antenna 110 and the second antenna 120, which are not repeated herein. The antenna assembly 10 also includes a third antenna 130. The antenna assembly 10 of this embodiment further includes the third antenna 130, which can be incorporated into any one of the embodiments described above in which the antenna assembly 10 includes the first antenna 110 and the second antenna 120. The third antenna 130 includes a third radiator 131 and a fourth signal source 132, where the third radiator 131 has a fourth feeding point P4, a second slot 1212 is formed between the third radiator 131 and the second radiator 121, and the third radiator 131 and the second radiator 121 are capacitively coupled through the second slot 1212, so that the fourth signal source 132 receives and transmits electromagnetic wave signals in a fourth frequency band through the third radiator 131 and a part of the second radiator 121.

The third radiator 131 is an FPC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal stub. In one embodiment, the type of the third radiator 131 is the same as the type of the first radiator 111. In another embodiment, the second radiator 121 is of a different type than the first radiator 111.

In this embodiment, the third radiator 131 is disposed at an end of the second radiator 121 away from the first radiator 111. In other words, the third radiator 131 and the first radiator 111 are respectively disposed at two opposite ends of the second radiator 121. A second slot 1212 is formed between the third radiator 131 and the second radiator 121, and is capacitively coupled to the second radiator 121 through the second slot 1212, and the third radiator 131 and the second radiator 121 have a common caliber. In other words, the third radiator 131 and the second radiator 121 are disposed at an interval and coupled to each other.

A dimension d of a second gap between the third radiator 131 and the second radiator 121₂Comprises the following steps: d is not less than 0.5mm₂Less than or equal to 2.0 mm. Referring specifically to FIG. 10, the dimension d is illustrated in FIG. 10₂. A dimension d of a second gap 1212 between the third radiation and the second radiator 121₂The range is selected so as to ensure a good coupling effect between the third radiator 131 and the second radiator 121. Further optionally, d is 0.5mm ≦ d₂Less than or equal to 1.5mm, so that the coupling effect between the third radiator 131 and the second radiator 121 is better.

The fourth signal source 132 is configured to generate a fourth excitation signal, and the fourth excitation signal is applied to the third radiator 131, so that the third radiator 131 radiates an electromagnetic wave signal. When the antenna assembly 10 is used in an electronic device 1 (see fig. 18), the fourth signal source 132 may be disposed on a circuit board 50 (see fig. 18) in the electronic device 1. When the antenna assembly 10 is in operation, the fourth excitation signal generated by the fourth signal source 132 may be coupled to the second radiator 121 through the second slot 1212, in other words, when the third antenna 130 is in operation, the third radiator 131 and the second radiator 121 may be utilized to transmit and receive electromagnetic wave signals, so that the third antenna 130 may operate in a wider frequency band. Likewise, when the antenna assembly 10 is in operation, the third excitation signal generated by the third signal source 123 may be coupled to the third radiator 131 through the second slot 1212, in other words, when the second antenna 120 is in operation, the second radiator 121 and the third radiator 131 may be utilized to transceive electromagnetic wave signals, so that the second antenna 120 may operate in a wider frequency band. Since the second antenna 120 may utilize the second radiator 121 and the third radiator 131 when operating, and the third antenna 130 may utilize the third radiator 131 and the second radiator 121 when operating, multiplexing of radiators and multiplexing of space are realized, which is beneficial to reducing the size of the antenna assembly 10. When the antenna assembly 10 is applied to the electronic device 1, the stacking space for stacking the antenna assembly 10 in the electronic device 1 can be saved.

In this embodiment, the fourth frequency Band is a Medium High Band (MHB) and an Ultra High Band (UHB) frequency Band, that is, an MHB + UHB frequency Band.

With reference to the foregoing description, the length of the third radiator 131 is smaller than that of the second radiator 121, and the fourth frequency band of the electromagnetic wave signal transmitted and received by the third antenna 130 is higher than the frequency band of the electromagnetic wave signal of the third frequency band transmitted and received by the second antenna 120.

With reference to fig. 10, the third antenna 130 further includes a fifth matching circuit M5 and a third adjusting circuit T3. The fourth signal source 132 is electrically connected to the fifth matching circuit M5 through the fourth feeding point P4, and the fifth matching circuit M5 and the third adjusting circuit T3 are configured to adjust a resonant frequency of the electromagnetic wave signal in the fourth frequency band according to a preset frequency-selecting parameter, so as to implement CA and endec combination.

The third antenna 130 further has a second ground GND2 facing away from the second slot 1212, and the second ground GND2 is grounded.

In this embodiment, the resonant frequency of the electromagnetic wave signal in the fourth frequency band can be adjusted by setting the frequency selection parameters (including the capacitance, inductance, and resistance) of the fifth matching circuit M5 and the frequency selection parameters (including the capacitance, inductance, and resistance) of the third adjusting circuit T3, so as to realize CA and ENDC combination in the fourth frequency band.

In this embodiment, one end of the third regulator circuit T3 is grounded, and the other end is electrically connected to the fifth matching circuit M5. In an embodiment, the third regulating circuit T3 may be connected in parallel or in series with the first matching circuit M1. The third regulating circuit T3 may be integrated with the fifth matching circuit M5 as one module, or may be a separate module from the first matching circuit M1. In one embodiment, the third regulating circuit T3 is a switch or a variable capacitor.

Referring to fig. 12, fig. 12 is a schematic diagram of an antenna assembly according to yet another embodiment of the present application. The antenna assembly 10 provided in this embodiment is substantially the same as the antenna assembly 10 provided in fig. 10 and its associated description, except that, in this embodiment, in fig. 10 and its associated description, one end of the third adjusting circuit T3 is grounded, and the other end is electrically connected to the fifth matching circuit M5; in this embodiment, one point of the third adjusting circuit T3 is grounded, and the other end is electrically connected to the third radiator 131.

Referring to fig. 13, fig. 13 is a schematic diagram of return loss curves of the antenna assembly shown in fig. 10 for transceiving electromagnetic wave signals in a fourth frequency band. The eighth wavelength mode from the second ground GND2 to the second slot 1212 is used to support the transceiving of electromagnetic wave signals of the fifth sub-band, and is labeled as mode 9 in the figure for convenience of illustration. The quarter-wavelength mode of the second connection O2 to the second slot 1212 is used to support transceiving of electromagnetic wave signals of the sixth sub-band, and is labeled as mode 10 in the figure for convenience of illustration. The quarter-wavelength mode from the second ground GND2 to the second slot 1212 is used to support transceiving of electromagnetic wave signals of the seventh sub-band, and is labeled as mode 11 in the figure for convenience of description. The quarter-wavelength mode from the fourth feeding point P4 to the second slot 1212 is used to support transceiving of electromagnetic wave signals of the eighth sub-band, and is labeled as mode 12 in the figure for convenience of description. Wherein the fourth frequency band comprises the fifth frequency sub-band, the sixth frequency sub-band, the seventh frequency sub-band, and the eighth frequency sub-band.

It should be noted that the mode 9, the mode 10, the mode 11, and the mode 12 illustrated in fig. 13 are only one mode of each sub-band included in the fourth frequency band, and the resonant frequency points of each sub-band can be adjusted by setting the frequency selection parameters of the fifth matching circuit M5 and the third adjusting circuit T3. In addition, the

modes

11 and 12 can be adjusted by adjusting the frequency selection parameters of the fifth matching circuit M5 and the third adjusting circuit T3, so that the antenna assembly 10 can also cover the WiFi-5G frequency band or higher frequency bands.

The fourth frequency band is the MHB + UHB frequency band, so the antenna shown in fig. 11 is a second branch MHB + UHB antenna. As can be seen from fig. 13, the second branch MHB + UHB antenna can simultaneously cover all MHB + UHB frequency bands of Long Term Evolution (LTE) and all MHB + UHB frequency bands of New Radio (NR). The MHB + UHB frequency band of the LTE comprises an LTE-1/2/3/4/7/32/40/41 frequency band, and the MHB + UHB frequency band of the NR comprises an NR-1/3/7/40/41/77/78/79 frequency band.

Referring to fig. 14, fig. 14 is a schematic diagram of an antenna element according to still another embodiment of the present application. In the present embodiment, the antenna assembly 10 includes a first antenna 110, a second antenna 120, and a third antenna 130. The first antenna 110 includes a first radiator 111, a first signal source 112, a first matching circuit M1, and a first adjusting circuit T1. The first radiator 111 has a first feeding point P1 and a first ground GND1, the first signal source 112 is electrically connected to the first radiator 111 through the first matching circuit M1, and the first ground GND1 is grounded. The first adjusting circuit T1 is electrically connected to the first radiator 111. In this embodiment, a connection point of the first radiator 111 electrically connected to the first regulating circuit T1 is located between the first ground GND1 and the first feeding point P1. In other embodiments, a connection point of the first radiator 111 electrically connected to the first regulating circuit T1 is located at an end of the first feeding point P1 away from the first ground GND 1. When the connection point of the first radiator 111 electrically connected to the first adjusting circuit T1 is located at the end of the first feeding point P1 away from the first ground GND1, the electromagnetic wave signals generated by the first radiator 111 may have less influence on the electromagnetic wave signals of other frequency bands supported by the antenna assembly 10. It is to be understood that, as shown in the schematic diagram of the present embodiment, a connection point of the first radiator 111 electrically connected to the first adjusting circuit T1 may also be located between the first ground GND1 and the first feeding point P1, as long as the first adjusting circuit T1 is electrically connected to the first radiator 111.

The second antenna 120 includes a second radiator 121, a second signal source 122, a third signal source 123, a second matching circuit M2, a third matching circuit M3, a fourth matching circuit M4, and a second adjusting circuit T2. The second radiator 121 and the first radiator 111 have a first slot 1211 therebetween, and are capacitively coupled to the first radiator 111 through the first slot 1211. The second radiator 121 includes a second feeding point P2, a third feeding point P3, a first connection O1, and a second connection O2. The second feeding point P2 is disposed adjacent to the first radiator 111 compared to the third feeding point P3, the first connection O1 is located between the second feeding point P2 and the third feeding point P3, and the second connection O2 is located at an end of the third feeding point P3 facing away from the second feeding point P2. The second signal source 122 electrically connects the second matching circuit M2 to the first feeding point P1. The third matching circuit M3 is electrically connected to the first connection O1. The third signal source 123 electrically connects the fourth matching circuit M4 to the third feeding point P3. The second regulating circuit T2 is electrically connected to the second connection O2.

The third antenna 130 includes a third radiator 131, a fourth signal source 132, a fifth matching circuit M5, and a third adjusting circuit T3. A second slot 1212 is formed between the third radiator 131 and the second radiator 121, and is capacitively coupled to the second radiator 121 through the second slot 1212. The third radiator 131 has a fourth feeding point P4 and a second ground GND 2. The fourth signal source 132 is electrically connected to the fifth matching circuit M5 to the third feeding point P3, and the second ground GND2 is grounded. The third adjusting circuit T3 is electrically connected to the third radiator 131. In this embodiment, a connection point at which the third radiator 131 is electrically connected to the third regulating circuit T3 is located between the fourth feeding point P4 and the second ground GND 2. It is understood that, in other embodiments, the connection point of the third radiator 131 electrically connected to the third regulating circuit T3 is located at one end of the fourth feeding point P4 away from the second ground GND 2. When the connection point of the third radiator 131 electrically connected to the third adjusting circuit T3 is located at the end of the fourth feeding point P4 away from the second ground GND2, the influence of the electromagnetic wave signal of the fourth frequency band generated by the third radiator 131 on the electromagnetic wave signals of other frequency bands can be reduced. It is to be understood that, as shown in the schematic diagram of the present embodiment, a connection point at which the third radiator 131 is electrically connected to the third regulating circuit T3 may be located between the fourth feeding point P4 and the second ground GND2, as long as the third regulating circuit T3 is electrically connected to the fourth radiator.

Referring to fig. 15, fig. 15 is a schematic diagram of an antenna element according to still another embodiment of the present application. In this embodiment, the second antenna 120 further includes a fourth adjusting circuit T4, and the fourth adjusting circuit T4 is electrically connected to the fourth matching circuit M4 and is configured to adjust the resonant frequency point of the third frequency band.

In the schematic diagram of the present embodiment, the second antenna 120 further includes a fourth regulating circuit T4, and the fourth regulating circuit T4 is combined with the antenna assembly 10 provided in the foregoing embodiment.

Referring to fig. 16, fig. 16 is a schematic diagram of an antenna element according to still another embodiment of the present application. The first frequency band is the same as the fourth frequency band, and the antenna assembly 10 further includes a controller 140, where the controller 140 is configured to control any one of the first antenna 110 and the third antenna 130 to operate according to a placement state of an electronic device 1 to which the antenna assembly 10 is applied.

The placement state of the electronic device 1 includes a state where the electronic device 1 is in a landscape screen state and a state where the electronic device 1 is in a portrait screen state.

The control strategy of the controller 140 for controlling the first antenna 110 and the third antenna 130 in the antenna assembly 10 will be described in detail later with reference to the specific structure of the electronic device 1.

In the schematic illustration of the present embodiment, the antenna assembly 10 shown in one such manner is shown with the antenna assembly 10 further including a controller 140, and it should be understood that no limitation to the antenna assembly 10 provided herein is intended thereby.

In an embodiment, the first frequency band and the fourth frequency band are both MHB + UHB frequency bands, the second frequency band is a GPS-L5 frequency band, and the third frequency band is an LB frequency band.

Referring to fig. 17 and 18 together, fig. 17 is a perspective structural view of an electronic device according to an embodiment of the present application; FIG. 18 is a cross-sectional view taken along line I-I of FIG. 17, according to one embodiment. The electronic device 1 comprises the antenna assembly 10 according to any of the preceding embodiments. The antenna assembly 10 is described above and will not be described in detail.

Referring to fig. 17 to 19 together, fig. 19 is a top view of a metal frame according to an embodiment of the present disclosure. The electronic device 1 further includes a metal frame 20. The metal frame 20 includes a frame body 210, a first metal segment 220, a second metal segment 230, and a third metal segment 240. The first metal segment 220, the second metal segment 230, and the third metal segment 240 are disposed at intervals, gaps are formed between the first metal segment 220, the second metal segment 230, and the third metal segment 240 and the frame body 210, respectively, one end of the first metal segment 220 departing from the second metal segment 230 is connected to the frame body 210, and one end of the third metal segment 240 departing from the second metal segment 220 is connected to the frame body 210, wherein the first radiator 111 includes the first metal segment 220, the second radiator 121 includes the second metal segment 230, and the third metal segment 240 includes the third radiator 131.

Since a larger piece of metal can constitute a ground pole, the frame body 210 can constitute the ground pole, and one end of the first metal segment 220, which is away from the second metal segment 230, is connected to the frame body 210, so that the first metal segment 220 is grounded; one end of the third metal segment 240, which faces away from the second metal segment 230, is connected to the frame body 210, so that the third metal segment 240 is grounded.

Referring to fig. 18 again, the metal frame 20 includes a frame 240, the frame 240 is bent and connected to the periphery of the frame body 210, and the first metal segment 220, the second metal segment 230 and the third metal segment 240 are formed on the frame 240.

In the present embodiment, the metal housing 20 is the middle frame 30 of the electronic device 1.

The middle frame 30 is made of metal, such as aluminum magnesium alloy. The middle frame 30 generally forms a ground of the electronic device 1, and when the electronic devices in the electronic device 1 need to be grounded, the middle frame 30 can be connected to the ground. In addition, the ground system in the electronic device 1 includes a ground on the circuit board 50 and a ground in the screen 40 in addition to the middle frame 30.

In this embodiment, the electronic device 1 further includes a screen 40, a circuit board 50, and a battery cover 60. The screen 40 may be a display screen with a display function, or may be a screen 40 integrated with a display function and a touch function. The screen 40 is used for displaying information such as text, images, video, and the like. The screen 40 is supported by the middle frame 30 and is located at one side of the middle frame 30. The circuit board 50 is also generally carried by the middle frame 30, and the circuit board 50 and the screen 40 are carried by opposite sides of the middle frame 30. At least one or more of the first signal source 112, the second signal source 122, the third signal source 123, the fourth signal source 132, the first matching circuit M1, the second matching circuit M2, the third matching circuit M3, the fourth matching circuit M4, the fifth matching circuit M5, the first regulating circuit T1, the second regulating circuit T2, the third regulating circuit T3, and the fourth regulating circuit T4 of the antenna assembly 10 described above may be disposed on the circuit board 50. The battery cover 60 is disposed on a side of the circuit board 50 away from the middle frame 30, and the battery cover 60, the middle frame 30, the circuit board 50, and the screen 40 cooperate with each other to form a complete electronic device 1. It should be understood that the structural description of the electronic device 1 is merely a description of one form of the structure of the electronic device 1, and should not be understood as a limitation on the electronic device 1, nor should it be understood as a limitation on the antenna assembly 10.

In another embodiment, the metal housing 20 is not a middle frame, but is a metal housing provided inside the electronic device 1. In other embodiments, the first radiator 111 is an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, or a metal branch; the second radiator 121 is an FPC antenna radiator or an LDS antenna radiator, or a PDS antenna radiator, or a metal stub; the third radiator 131 is an FPC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal stub. It is understood that the first radiator 111 and the third radiator 131 are electrically connected to a ground system in the electronic device 1. The ground system in the electronic device 1 includes a middle frame 30, a screen 40, and a circuit board 50, the first radiator 111 and the third radiator 131 are electrically connected to the ground system of the electronic device 1, and the first radiator 111 and the third radiator 131 are electrically connected to any one or more of the middle frame 30, the screen 40, and the circuit board 50.

In one embodiment, the first radiator 111, the second radiator 121, and the third radiator 131 are the same type of antenna radiator and are disposed on the same substrate. The first radiator 111, the second radiator 121, and the third radiator 131 are of the same type and are disposed on the same substrate, so that the first radiator 111, the second radiator 121, and the third radiator 131 are conveniently manufactured and the first radiator 111, the second radiator 121, and the third radiator 131 are conveniently assembled with other components in the electronic device 1.

When the first radiator 111 is electrically connected to the ground of the middle frame 30, the first radiator 111 may be connected to the ground of the middle frame 30 through a connection rib, or the first radiator 111 is electrically connected to the ground of the middle frame 30 through a conductive elastic sheet. Similarly, when the third radiator 131 is electrically connected to the ground of the middle frame 30, the third radiator 131 may be connected to the ground of the middle frame 30 through a connection rib, or the third radiator 131 is electrically connected to the ground of the middle frame 30 through a conductive elastic sheet.

Referring to fig. 20, fig. 20 is a schematic view of the electronic device in a vertical screen state. In the present embodiment, the electronic device 1 has a first side 11, a second side 12, a third side 13, and a fourth side 14 connected end to end in this order. First limit 11 with third limit 13 sets up relatively, second limit 12 with fourth limit 14 sets up relatively, the length of first limit 11 is less than the length of second limit 12, first radiator 111 with a part of second radiator 121 corresponds first limit 11 sets up, another part of second radiator 121 with third radiator 131 corresponds second limit 12 sets up.

The length of the first side 11 is smaller than the length of the second side 12, in other words, the first side 11 is a short side and the second side 12 is a long side. In the present embodiment, the first side 11 and the third side 13 are short sides of the electronic device 1, and the second side 12 and the fourth side 14 are long sides of the electronic device 1. When the electronic device 1 is in the portrait screen state (i.e., the state in fig. 17), the controller 140 controls the first antenna 110 to support the electromagnetic wave signal of the first frequency band. In other words, when the electronic device 1 is in the portrait state, the MHB + UHB main set is implemented by the first antenna 110. When the electronic device 1 is in the vertical screen state and the user holds the electronic device 1, the third antenna 130 is easily shielded by the user, and therefore, the performance of the third antenna 130 for receiving and transmitting electromagnetic wave signals is weak. Therefore, when the electronic device 1 is in the portrait screen state, the controller 140 controls the MHB + UHB main set to be implemented by the first antenna 110, so that poor communication performance of the electronic device 1 caused by the MHB + UHB main set being implemented by the third antenna 130 can be avoided. It should be noted that, the MHB + UHB main set is realized by the first antenna 110, which means that the first antenna 110 transmits and receives electromagnetic wave signals in MHB + UHB frequency bands.

When the electronic device 1 is in the landscape state, please refer to fig. 21 together, and fig. 21 is a schematic diagram of the electronic device in the landscape state. The controller 140 controls the third antenna 130 to support electromagnetic wave signals of a fourth frequency band. In other words, when the electronic device 1 is in the landscape state, the MHB + UHB main set is implemented by the third antenna 130. When the electronic device 1 is in the landscape state, the first antenna 110 is easily shielded by a user when the user holds the electronic device 1, and thus the performance of the first antenna 110 for receiving and transmitting electromagnetic wave signals is weak. Therefore, when the electronic device 1 is in the landscape state, the controller 140 controls the MHB + UHB main set to be implemented by the third antenna 130, so that poor communication performance of the electronic device 1 caused by the MHB + UHB main set being implemented by the first antenna 110 can be avoided.

In summary, the controller 140 controls the antenna supporting the MHB + UHB frequency band according to the horizontal screen state and the vertical screen state of the electronic device 1, so that the electronic device 1 has better communication performance in the MHB + UHB frequency band.

Furthermore, in an embodiment, when the electronic device 1 is in a call state, the controller 140 controls the MHB + UHB main set to be implemented by the third antenna 130. Generally, when the electronic device 1 is in a call state, the first antenna 110 is often closer to the head of the user than the third antenna 130, and therefore, the controller 140 controls the MHB + UHB main set to be implemented by the third antenna 130, so as to reduce an electromagnetic wave Absorption ratio (also called Specific Absorption Rate, SAR) of the antenna assembly 10 to the user, and thus, improve the security of the electronic device 1.

In another embodiment, when the head of the user is close to the first antenna 110, the controller 140 controls the MHB + UHB main set to be implemented by the third antenna 130, so as to reduce the SAR of the antenna assembly 10 for the user, thereby improving the security of the electronic device 1. In another embodiment, when the head of the user is close to the third antenna 130, the controller 140 controls the MHB + UHB main set to be implemented by the first antenna 110, so as to reduce SAR of the antenna assembly 10 for the user, thereby improving the safety of the electronic device 1.

Referring to fig. 22, fig. 22 is a schematic view of an electronic device according to another embodiment of the present application. The electronic device 1 has a first side 11, a second side 12, a third side 13 and a fourth side 14 which are connected end to end in sequence. First limit 11 with third limit 13 sets up relatively, second limit 12 with fourth limit 14 sets up relatively, the length of first limit 11 is less than the length of second limit 12, first radiator 111 with a part of second radiator 121 corresponds first limit 11 sets up, another part of second radiator 121 with third radiator 131 corresponds second limit 12 sets up.

The length of the first side 11 is smaller than the length of the second side 12, in other words, the first side 11 is a short side and the second side 12 is a long side. In the present embodiment, the first side 11 and the third side 13 are short sides of the electronic device 1, and the second side 12 and the fourth side 14 are long sides of the electronic device 1. The first radiator 111, the second radiator 121, and the third radiator 131 are disposed corresponding to the second side 12. In other embodiments, the first radiator 111, the second radiator 121, and the third radiator 131 are disposed corresponding to the first side 11. That is, the first radiator 111, the second radiator 121, and the third radiator 131 are all disposed to the same side.

Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application, and that such changes and modifications are also to be considered as within the scope of the present application.

Claims

1. An antenna assembly, characterized in that the antenna assembly comprises:

2. The antenna assembly of claim 1, wherein the first antenna further comprises a first matching circuit and a first adjusting circuit, the first signal source electrically connecting the first matching circuit to the first feed point; the first matching circuit and the first adjusting circuit are used for adjusting the resonant frequency of the electromagnetic wave signal of the first frequency band according to a preset frequency selection parameter so as to realize the combination of CA and ENDC of the first frequency band.

3. The antenna assembly of claim 2, wherein one end of the first regulating circuit is grounded and the other end is electrically connected to the first matching circuit; or, one end of the first adjusting circuit is grounded, and the other end of the first adjusting circuit is electrically connected to the first radiator.

4. The antenna assembly of claim 2, wherein the second radiator has a first connection point, the first connection point being located between the first feed point and a second feed point, the second antenna including a second matching circuit and a third matching circuit, the second signal source electrically connecting the second matching circuit to the second feed point, the third matching circuit having one end connected to ground and the other end electrically connected to the first connection point; the first radiator is also provided with a first grounding end deviating from the first gap, and the first grounding end is grounded;

the eighth wavelength mode from the first grounding end to the first gap is used for supporting the transceiving of electromagnetic wave signals of a first sub-frequency band;

the eighth wavelength mode from the first connecting point to the first gap is used for supporting the transceiving of electromagnetic wave signals of a second sub-frequency band;

the quarter-wavelength mode from the first grounding end to the first gap is used for supporting the transceiving of electromagnetic wave signals of a third sub-frequency band;

the quarter-wavelength mode from the first feeding point to the first slot is used for supporting the transceiving of electromagnetic wave signals of a fourth sub-band, wherein the first sub-band comprises the first sub-band, the second sub-band, the third sub-band and the fourth sub-band.

5. The antenna assembly of claim 4, wherein the eighth wavelength mode of the first connection point to the first slot is for supporting transceiving of electromagnetic wave signals of the second frequency band.

6. The antenna assembly of claim 5, wherein the second matching circuit comprises a first capacitance, the second signal source being electrically connected to the second feed point via the first capacitance.

7. The antenna assembly of claim 6, wherein the second matching circuit further comprises a band-pass filtering unit for band-pass filtering the electromagnetic wave signal of the second frequency band, one end of the band-pass filtering unit is electrically connected to one end of the first capacitor far from the second feeding point, the other end of the band-pass filtering unit is electrically connected to the second feeding point, and the band-pass filtering unit comprises a second capacitor and an inductor connected in series.

8. The antenna assembly of claim 7, wherein the second matching circuit further comprises a third capacitor, one end of the third capacitor is grounded, the other end of the third capacitor is electrically connected to the end of the first capacitor away from the second signal source, and the third capacitor is used for adjusting the resonant frequency point of the electromagnetic wave signals in the second frequency band.

9. The antenna assembly of claim 4, wherein the second radiator further has a second connection point, the second antenna further has a fourth matching circuit and a second adjusting circuit, the third signal source is electrically connected to the third feed point via the fourth matching circuit, and the fourth matching circuit is configured to impedance match the second antenna; the second adjusting circuit is electrically connected to the second connecting point and used for adjusting the resonant frequency point of the third frequency band, and the second antenna receives and transmits electromagnetic wave signals of the third frequency band through one end of the second radiator, which deviates from the first gap, from the first connecting point.

10. The antenna assembly of any one of claims 1-9, further comprising:

the third antenna comprises a third radiator and a fourth signal source, the third radiator is provided with a fourth feed point, a second gap is formed between the third radiator and the second radiator, and the third radiator and the second radiator are in capacitive coupling through the second gap, so that the fourth signal source receives and transmits electromagnetic wave signals of a fourth frequency band through the third radiator and part of the second radiator.

11. The antenna assembly of claim 10, wherein the third antenna further comprises a fifth matching circuit and a third adjusting circuit, the fourth signal source electrically connects the fifth matching circuit to the fourth feeding point, and the fifth matching circuit and the third adjusting circuit are configured to adjust the resonant frequency of the electromagnetic wave signal in the fourth frequency band according to a predetermined frequency-selecting parameter, so as to implement CA and endec combination.

12. The antenna assembly of claim 11, wherein one end of the third regulating circuit is grounded and the other end is electrically connected to the fifth matching circuit; or, one point of the third adjusting circuit is grounded, and the other end of the third adjusting circuit is electrically connected to the third radiator.

13. The antenna assembly of claim 11, wherein the third antenna further has a second ground terminal facing away from the second slot when the second radiator has a second connection point to a second tuning circuit, the second ground terminal being grounded,

the eighth wavelength mode from the second grounding end to the second gap is used for supporting the transceiving of electromagnetic wave signals of a fifth sub-band;

the quarter-wavelength mode from the second connection point to the second gap is used for supporting the transceiving of electromagnetic wave signals of a sixth sub-band;

the quarter-wavelength mode from the second grounding end to the second gap is used for supporting the transceiving of electromagnetic wave signals of a seventh sub-band;

a quarter wavelength mode from the fourth feeding point to the second slot is used to support transceiving of electromagnetic wave signals of an eighth frequency sub-band, where the fourth frequency band includes the fifth frequency sub-band, the sixth frequency sub-band, the seventh frequency sub-band, and the eighth frequency sub-band.

14. The antenna assembly of claim 9, wherein the second antenna further comprises a fourth adjusting circuit electrically connected to the fourth matching circuit for adjusting the resonant frequency point of the third frequency band.

15. The antenna assembly of claim 10, wherein the first frequency band is the same as the fourth frequency band, and further comprising a controller for controlling operation of any one of the first antenna and the third antenna based on a placement of an electronic device to which the antenna assembly is applied.

16. The antenna assembly of claim 10, wherein the first frequency band and the fourth frequency band are both MHB + UHB frequency bands, the second frequency band is a GPS-L5 frequency band, and the third frequency band is an LB frequency band.

17. The antenna assembly of claim 1, wherein the first radiator is a PC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal stub; the second radiator is an FPC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal branch.

18. An electronic device, characterized in that it comprises an antenna assembly according to any one of claims 1-17.

19. The electronic device of claim 18, wherein the electronic device has a first side, a second side, a third side, and a fourth side connected end to end in sequence, the first side is disposed opposite to the third side, the second side is disposed opposite to the fourth side, a length of the first side is smaller than a length of the second side, when the antenna assembly further includes a third antenna and the third antenna includes a third radiator, the first radiator and a portion of the second radiator are disposed corresponding to the first side, and another portion of the second radiator and the third radiator are disposed corresponding to the second side.

20. The electronic device of claim 18, wherein when the antenna assembly further comprises a third antenna and the third antenna comprises a third radiator, the first radiator, the second radiator, and the third radiator are all disposed corresponding to the first edge or all disposed corresponding to the second edge.