CN114122693A

CN114122693A - Antenna device and electronic apparatus

Info

Publication number: CN114122693A
Application number: CN202111406385.8A
Authority: CN
Inventors: 吴小浦
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-03-01
Anticipated expiration: 2041-11-24
Also published as: WO2023093201A1; CN114122693B

Abstract

The application provides an antenna device and electronic equipment, the antenna device is applied to the electronic equipment, the antenna device comprises a feed source and a radiation unit connected with the feed source; the radiation unit is excited by the feed source to generate a plurality of resonance modes in the same frequency band, and different resonance modes form different resonance current distributions on the radiation unit; each resonance mode is used for generating a spatial radiation field corresponding to a frequency band, and the spatial coverage of the spatial radiation field corresponding to different resonance modes is different. By adopting the antenna device, the influence of the holding posture of the user on the signal emission of the electronic equipment can be avoided, and the communication performance of the electronic equipment is ensured.

Description

Antenna device and electronic apparatus

Technical Field

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

Background

With the development of communication technology, the application scenarios of electronic devices such as mobile phones and the like are also increasing, such as call scenarios, game scenarios and the like. The gesture of the user holding the electronic device is also changed in different application scenes, and the performance requirements of the antenna device in the electronic device are also different.

In the conventional method, the electronic device may connect the feed of the antenna apparatus to radiators in different areas according to a change of an application scene, and radiate signals through the radiators in the different areas, so as to adapt to a change of a hand-holding posture in the different application scenes.

However, the above method cannot meet the communication requirement of the electronic device.

Disclosure of Invention

The embodiment of the application provides an antenna device and electronic equipment, which can improve the performance of the antenna device in the electronic equipment, so that the electronic equipment can be applied to an ultra-wideband application scene.

In a first aspect, an antenna apparatus is provided, which is applied to an electronic device, and includes: the device comprises a feed source and a radiation unit connected with the feed source; the radiation unit is excited by the feed source to generate a plurality of resonance modes in the same frequency band, and different resonance modes form different resonance current distributions on the radiation unit;

each resonance mode is used for generating a spatial radiation field corresponding to a frequency band, and the spatial coverage of the spatial radiation field corresponding to different resonance modes is different.

In a second aspect, an electronic device is provided, which includes the antenna apparatus of the first aspect.

The antenna device is applied to the electronic equipment and comprises a feed source and a radiation unit connected with the feed source; the radiation unit is excited by the feed source to generate a plurality of resonance modes in the same frequency band, and different resonance modes form different resonance current distributions on the radiation unit; each resonance mode is used for generating a spatial radiation field corresponding to a frequency band, and the spatial coverage of the spatial radiation field corresponding to different resonance modes is different. Because the radiation unit of the antenna device can be excited by the feed source to generate a plurality of resonance modes, and the space coverage ranges of the space radiation fields corresponding to different resonance modes are different, the antenna device can radiate electromagnetic wave signals to a plurality of space coverage ranges; when the electronic equipment is in different space states such as a horizontal screen or a vertical screen along with different holding postures of a user, the space radiation fields generated by different resonance modes can adapt to the change of the space state of the electronic equipment, and electromagnetic wave signals are radiated to different space radiation ranges in different space states, so that the influence of the holding postures of the user on the signal emission of the electronic equipment can be avoided, and the communication performance of the electronic equipment is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an antenna device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an antenna device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of the radiation bandwidth in one embodiment of the present application;

FIG. 4 is a schematic view of a grip according to an embodiment of the present application;

fig. 5 is a schematic view of an antenna arrangement according to an embodiment of the present application;

fig. 6 is a schematic view of an antenna arrangement according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a filter network in one embodiment of the present application;

FIG. 8 is a schematic diagram of a first resonant mode in one embodiment of the present application;

FIG. 9 is a schematic diagram of a first resonant mode in one embodiment of the present application;

FIG. 10 is a schematic diagram of a second resonant mode in one embodiment of the present application;

FIG. 11 is a graph illustrating resonant frequencies of a first operating band in accordance with an embodiment of the present application;

FIG. 12 is a schematic diagram of a third resonant mode in an embodiment of the present application;

fig. 13 is a schematic view of an antenna arrangement according to an embodiment of the present application;

FIG. 14 is a schematic diagram of a fourth resonant mode in one embodiment of the present application;

FIG. 15 is a schematic diagram of a fifth resonant mode in an embodiment of the present application;

FIG. 16 is a schematic illustration of a sixth resonant mode in an embodiment of the present application;

FIG. 17 is a schematic diagram of a seventh resonant mode in one embodiment of the present application;

FIG. 18 is a schematic view of an eighth resonant mode in an embodiment of the present application;

FIG. 19 is a graph illustrating resonant frequencies of a second operating band in accordance with an embodiment of the present application;

FIG. 20 is a graph illustrating resonant frequencies of a second operating band in accordance with an embodiment of the present application;

fig. 21 is a schematic view of an antenna arrangement according to an embodiment of the present application;

fig. 22 is a schematic view of an antenna arrangement according to an embodiment of the present application;

fig. 23 is a schematic view of an antenna arrangement according to an embodiment of the present application;

FIG. 24 is a schematic diagram of a fifth matching circuit in an embodiment of the present application;

fig. 25 is a schematic view of an antenna arrangement according to an embodiment of the present application;

FIG. 26 is a diagram of an electronic device in one embodiment of the application.

Description of the drawings:

10. a feed source; 20. a radiation unit; 11. a first feed source; 12. a second feed source;

21. a gap; 211. a first slit; 212. a second slit;

22. a radiator; 221. a first radiator; 222. a second radiator; 223. a third radiator;

30. a matching circuit; 31. a first matching circuit; 32. a second matching circuit;

33. a third matching circuit; 34. a fourth matching circuit; 35. a fifth matching circuit;

a1, a first feeding point; a2, second feed point;

b1, first matching point; b2, second matching point; b3, third matching point;

c1, a first ground point; c2, a second ground point;

l0, a first inductor; l2, a second inductor; c0, a first capacitance;

40. a proximity sensor; c1, and a DC blocking capacitor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first feed may be referred to as a second feed, and similarly, a second feed may be referred to as a first feed, without departing from the scope of the present application. The first feed and the second feed are both feeds, but they are not the same feed.

The antenna device provided by the application can be applied to electronic equipment, and the electronic equipment can be equipment with a wireless transceiving function, and can be but not limited to handheld or wearable equipment and the like. The electronic device may be a mobile phone, a tablet computer, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, or the like. The electronic device can be in communication connection with other devices through the wireless transceiving function, and the other devices can be network devices and other electronic devices. The network device may be a device having a wireless transceiving function. Including but not limited to: a base station NodeB, an evolved node b, a base station in the fifth generation (5G) communication system, a base station or network device in a future communication system, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, a near field communication device, and the like.

In one embodiment, an antenna arrangement is provided, as shown in fig. 1. The antenna device comprises a feed source 10 and a radiation unit 20 connected with the feed source 10; the radiation unit 20 is excited by the feed source 10, and multiple resonance modes can be generated in the same frequency band, and different resonance modes form different resonance current distributions on the radiation unit 20. Each of the resonant modes may be configured to generate a spatial radiation field corresponding to a frequency band, and spatial coverage of the spatial radiation field corresponding to different resonant modes is different.

The radiation unit 20 may be a metal frame of the electronic device, or may be a radiation patch of a built-in antenna on the electronic device. The metal frame of the electronic device can be made of metal materials such as stainless steel and aluminum; the metal frame can be arranged around a display screen of the electronic equipment. The metal frame can be a bottom frame, a top frame and a side frame of the electronic device. The internal antenna may be a Flexible Printed Circuit (FPC) antenna, a Laser Direct Structuring (LDS) antenna, or a Print Direct Structuring (PDS) antenna, which is not limited herein.

The frequency band of the electromagnetic wave signal output by the feed source 10 may include a Global Positioning System (GPS) frequency band, a working frequency band of a beidou satellite System, and a working frequency band of a Global satellite NAVIGATION System (Global NAVIGATION SATELLITE SYSTEM, GLONASS); the frequency band may also include a mobile communication frequency band, a WiFi communication frequency band, for example, a 5.8GHz frequency band, a 2.4GHz frequency band, and the like in a 5G frequency band.

After the electromagnetic wave signal output from the feed source 10 reaches the radiation unit 20, an induced current may be generated on the surface of the radiation unit 20. The induced current may have different return paths on the radiating element 20, corresponding to different resonance modes. The resonant mode may include a quarter-wavelength mode, a three-quarter-wavelength mode, and the like, and may further include other wavelength modes, which are not limited herein. Different resonant modes may result in different resonant current distributions on the radiating element 20. The resonant frequencies may be different for different resonant modes.

The feed source 10 may output electromagnetic wave signals of different frequency bands, and the number of the resonant modes corresponding to the electromagnetic wave signals of different frequency bands may be different. For example, the radiating element 20 is excited by the feed source to generate N1 resonant modes in the first frequency band and N2 resonant modes in the second frequency band.

The resonant current distribution corresponding to different resonant modes is different, and when the resonant current is distributed at different spatial positions of the electronic device, the spatial coverage range corresponding to the generated spatial radiation field may also be different. The different spatial positions of the electronic device may refer to the bottom, the top, the side, and the like of the electronic device. The spatial coverage may be a range covered by a spatial radiation field generated by the resonance mode. For example, the spatial coverage area corresponding to the spatial radiation field generated by one of the resonant modes may be an outward range of the bottom of the electronic device, and the spatial coverage area corresponding to the spatial radiation field generated by the other resonant mode may be an outward range of the side area of the electronic device, and so on.

The antenna device comprises a feed source 10 and a radiation unit 20 connected with the feed source; the radiation unit 20 is excited by the feed source to generate a plurality of resonance modes in the same frequency band, and different resonance modes form different resonance current distributions on the radiation unit 20; each resonance mode is used for generating a spatial radiation field corresponding to a frequency band, and the spatial coverage of the spatial radiation field corresponding to different resonance modes is different. Because the radiation unit 20 of the antenna device can be excited by the feed source to generate a plurality of resonance modes, and the spatial coverage ranges of the spatial radiation fields corresponding to different resonance modes are different, the antenna device can radiate electromagnetic wave signals to a plurality of spatial coverage ranges; when the electronic equipment is in different space states such as a horizontal screen or a vertical screen along with different holding postures of a user, the space radiation fields generated by different resonance modes can adapt to the change of the space state of the electronic equipment, and electromagnetic wave signals are radiated to different space radiation ranges in different space states, so that the influence of the holding postures of the user on the signal emission of the electronic equipment can be avoided, and the communication performance of the electronic equipment is ensured.

In one embodiment, an antenna arrangement is provided, as shown in fig. 2. The feed source 10 comprises a first feed source 11 and a second feed source 12; the radiation unit 20 includes a plurality of radiators 22 formed by at least two slots 21 at intervals; the first feed 11 and the second feed 12 are connected to different radiators 22, respectively. The antenna device further includes a plurality of matching circuits 30 connected to different radiators 22.

The first feed 11 operates in a first frequency band, and is configured to excite one or more radiators 22 to generate a plurality of resonant modes covering the first frequency band under tuning of one or more matching circuits 30, where each resonant mode covering the first frequency band is configured to generate a spatial radiation field corresponding to the first frequency band, and spatial coverage ranges of any two spatial radiation fields corresponding to the first frequency band are different.

The second feed 12 operates in a second frequency band, and is configured to excite one or more radiators 22 to generate a plurality of resonant modes covering the second frequency band under the tuning of one or more matching circuits 30, where each resonant mode covering the second frequency band is configured to generate a spatial radiation field corresponding to the second frequency band, and spatial coverage ranges of any two spatial radiation fields corresponding to the second frequency band are different.

The plurality of radiators 22 may be spaced apart by at least two slots, and the opening width of the slots may be, but is not limited to, between 0.5 mm and 2 mm. Taking the gap on the metal frame of the electronic device as an example, the gap 21 may be filled with a material such as ceramic or glass. The at least two slits 21 may be formed in the same metal frame, or may be formed in different metal frames, which is not limited herein. For example, one of the at least two slits 21 is opened on the metal bottom frame, and two slits are opened on one of the metal side frames; or, two slots of the antenna device are both arranged on the metal bottom frame. In the antenna device, the distance between two adjacent gaps can be adjusted according to the setting positions of the first feed source 11 and the second feed source 12, and also can be adjusted according to the working frequency bands of the first feed source 11 and the second feed source 12 of the antenna device. The first feed 11 and the second feed 12 in the antenna device may output electromagnetic wave signals at the same time, or may output electromagnetic wave signals through one of the feeds 10, which is not limited herein. In one application scenario, the plurality of radiators 22 and the at least two slots 21 in the antenna device are used for radiating the electromagnetic wave signal output by the first feed 11; in another application scenario, the plurality of radiators 22 and the at least two slots 21 in the antenna device are used for simultaneously radiating electromagnetic wave signals output by the first feed source 11 and the second feed source 12, so that two antennas with different working frequency bands are integrated, and the integration level of the antenna device is improved.

The operating frequency bands of the first feed 11 and the second feed 12 in the antenna device may be different. The first feed 11 and the second feed 12 may be respectively connected to different radiators 22, for example, the first feed 11 may be connected to the first radiator 221, and the second feed 12 may be connected to the second radiator 222. The first feed 11 may also be connected to different radiators by switching, for example, in a case where the first feed 11 is connected to the second radiator 222 by switching, the second feed 12 may be connected to the first radiator 221 by switching.

The antenna device may include a plurality of matching circuits 30, and the plurality of matching circuits 30 may be connected to a radiator such that the radiator may be excited to generate a plurality of resonant modes. Each radiator in the antenna device may be connected to the matching circuit 30, or a part of the radiators may be connected to the matching circuit 30; one matching circuit 30 may be connected to the same radiator, or a plurality of matching circuits 30 may be connected to the same radiator. The form of the different matching circuits 30 in the antenna device may be different or the same. For the same type of matching circuit 30, the corresponding parameters such as resistance, capacitance, etc. may be different. In the case where the same matching circuit in the antenna device is connected to different positions of the radiator, the tuning effect on the antenna device may be different.

The matching circuit 30 may be composed of integrated components such as a capacitor, an inductor, and a resistor, and may also include a radio frequency switch; the matching circuit 30 may be a metal stub for matching; the form of the matching circuit is not limited herein.

After the electromagnetic wave signals output by the first feed 11 and the second feed 12 reach the radiator 22, induced current can be generated on the surface of the radiator 22. Due to the existence of the gap 21 between adjacent radiators and the impedance change at each point on the radiators caused by the tuning of the matching circuit 30, the induced current has different return paths on the radiators, corresponding to different resonance modes. The antenna device may tune the resonance frequencies corresponding to the multiple resonance modes to different positions by the multiple matching circuits 30, so that different resonance modes correspond to different resonance frequencies. In the same working frequency band, the more the resonant modes are, the more the corresponding resonant frequencies are, so that the radiation bandwidth in the working frequency band is wider. As shown in fig. 3, one of the operating bands including one resonant frequency may be as shown in fig. 3(a), and the radiation bandwidth is calculated according to the 3dB drop of the minimum return loss point, and the corresponding bandwidth is W1; if the working frequency band includes three resonant frequencies as shown in fig. 3(b), the radiation bandwidth is calculated according to the 3dB drop of the minimum return loss point, and the corresponding bandwidth is W2, which greatly improves the radiation bandwidth of the antenna device.

The first feed 11 may operate in a first frequency band, and is configured to excite one or more radiators 22 to generate a plurality of resonant modes covering the first frequency band under the tuning of one or more matching circuits 30, where each resonant mode covering the first frequency band is configured to generate a spatial radiation field corresponding to the first frequency band, and spatial coverage ranges of any two spatial radiation fields corresponding to the first frequency band are different.

The second feed 12 may operate in a second frequency band, and is configured to excite one or more radiators 22 to generate a plurality of resonant modes covering the second frequency band under tuning of one or more matching circuits 30, where each resonant mode covering the second frequency band is configured to generate a spatial radiation field corresponding to the second frequency band, and a spatial coverage of any two spatial radiation fields corresponding to the second frequency band is different.

The resonant modes generated by the radiators 22 may be the same or different when the electronic device is in different application scenarios.

The application scenarios may include scenarios corresponding to electromagnetic wave signals of different frequency bands radiated by the antenna device, for example, a first scenario corresponding to an electromagnetic wave signal of a first working frequency band output by the first feed 11, a second scenario corresponding to an electromagnetic wave signal of a second working frequency band output by the first feed 11 while an electromagnetic wave signal of the first working frequency band is output by the second feed 12, a third scenario corresponding to an electromagnetic wave signal of a third working frequency band output by the first feed 11 while an electromagnetic wave signal of the first working frequency band is output by the second feed 12, and the like.

The application scenes may also include a free space scene, a portrait screen hand-held scene, and a landscape screen hand-held scene. The free space scene may refer to a scene in which the electronic device is not held by a user. The vertical screen hand-holding scene may be a scene in which a user vertically holds the electronic device. The above-mentioned landscape handheld scene may refer to a scene in which a user holds the electronic device in a landscape manner. Several hand-held postures related to the vertical screen hand-held scene and the horizontal screen hand-held scene can be as shown in fig. 4, wherein fig. 4 respectively shows the posture of a user for holding the bottom and the middle of the electronic equipment by one hand in the vertical screen mode, and the holding postures of the user for holding the electronic equipment by two hands in the vertical screen mode, and for holding the electronic equipment by two hands in the horizontal screen mode. The holding postures involved for the portrait hand-held scene and the landscape hand-held scene are not limited to the schematic diagrams in fig. 4.

The feed 10 of the antenna device comprises a first feed 11 and a second feed 12; the radiation unit 20 includes a plurality of radiators 22 formed by at least two slots 21 at intervals; the first feed source 11 and the second feed source 12 are respectively connected with different radiators; the antenna device further includes a plurality of matching circuits connected to different radiators; such that the first feed 11 may excite one or more radiators to generate a plurality of resonant modes covering a first frequency band under tuning of one or more matching circuits 30, and the second feed 12 may excite one or more radiators to generate a plurality of resonant modes covering a second frequency band under tuning of one or more matching circuits. Based on the multiple resonance modes covering the first frequency band and the multiple resonance modes covering the second frequency band, the antenna device radiates electromagnetic wave signals of the first frequency band and the second frequency band, so that the influence of the holding of a user on the radiation performance can be avoided, and the communication performance of the electronic equipment is further guaranteed.

In one embodiment, as shown in fig. 5, the plurality of radiators 22 in the antenna device are three radiators formed by two slots at intervals on the metal frame of the electronic device. The two slits 21 include a first slit 211 formed in a metal bottom frame of the electronic device, and a second slit 212 formed in a first metal side frame of the electronic device. The plurality of radiators in the antenna device may include a first radiator 221 between the first slot 211 and the second slot 212, a second radiator 222 distant from the second slot 212, and a third radiator 223 distant from the first slot 211.

The first metal side frame may be a right side frame of the electronic device when the screen faces the user, as shown in fig. 5. The first metal side frame may also be a left side frame of the electronic device when the screen faces the user, as shown in fig. 6.

The first and

second feeds

11 and 12 in the antenna device may be connected to two of the first, second, and

third radiators

221, 222, and 223. The first feed 11 and the second feed 12 may be connected to the radiator through a radio frequency transmission line, or may be connected to the radiator 22 through a matching circuit, which is not limited herein.

Optionally, the first feed 11 may be connected to the first feed point a1 of the first radiator 221 through the first matching circuit 31; the second feed source 12 is connected to the second feed point a2 of the second radiator 222 through the second matching circuit 32; the first operating frequency band of the first feed 11 may be lower than the second operating frequency band of the second feed 12. Optionally, an operating frequency band of the first feed 11 is less than 1GHz, and an operating frequency band of the second feed 12 is greater than 1GHz and less than GHz.

The first matching circuit 31 and the second matching circuit 32 may be configured to excite multiple resonant modes simultaneously on the radiator 22, and may also be configured to tune a resonant frequency corresponding to the resonant modes, where the matching circuit may further include a filter network, and is configured to improve isolation between the first operating frequency band and the second operating frequency band of the antenna device, and reduce signal interference between the two operating frequency bands. Alternatively, the first matching circuit 31 may include a first frequency-selective filter network; the first frequency-selective filter network is used for conducting electromagnetic wave signals output by the first feed source 11; the second matching circuit 32 may include a second frequency-selective filter network; the second frequency-selective filter network is used for conducting the electromagnetic wave signal output by the second feed source 12. The frequency-selective filter network can be a resonant network formed by an inductor and a capacitor, and the inductor and the capacitor in the frequency-selective filter network can be connected in parallel or in series. Fig. 7 is a schematic diagram of several filter networks, and the first frequency-selective filter network and the second frequency-selective filter network may be any combination of the filter networks in the diagram.

The antenna device may include other matching circuits in addition to the first matching circuit 31 and the second matching circuit 32.

Alternatively, as shown in fig. 5, a first matching point B1 may be disposed on the first radiator 221, and the first matching point B1 is connected to a third matching circuit 33; the first matching point B1 may be disposed between the first slot 211 and the first feeding point a 1. The third matching circuit 33 may be used to excite multiple resonant modes simultaneously on the radiator, and may also be used to tune the resonant frequency corresponding to the resonant modes.

Optionally, a first grounding point C1 may be disposed on the second radiator 222; the above-mentioned first ground point C1 may be disposed at a side of the second feeding point a2 remote from the first slot 211. The first grounding point C1 may make the second radiator 222 exhibit a low impedance state at this point, so that the induced current on the second radiator 222 may flow back through the first grounding point C1, thereby reducing the current propagating to other areas of the second radiator 222, reducing the influence of the induced current on other components of the electronic device by the second radiator 222, and improving the isolation of the antenna device.

Optionally, a second grounding point C2 is disposed on the third radiator 223; the second ground point C2 is disposed on the third radiator 223 on a side close to the second slot 212. The second grounding point C2 may make the third radiator 223 have a low impedance state at this point, so that the current induced in the third radiator 223 through the second gap 212 may directly flow back through the second grounding point C2, thereby reducing the induced current in the third radiator 223, reducing the influence of the induced current in the third radiator 223 on other components of the electronic device, and improving the isolation of the antenna device.

The antenna device is provided with a first slot 211 and a second slot 212 through the metal frame, and the radiator can be excited to generate a plurality of resonant modes under the tuning of the matching circuit, so that the radiation bandwidth of the antenna device is widened; further, since the first slot 211 is disposed on the metal bottom frame of the electronic device and the second slot 212 is disposed on the first metal side frame of the electronic device, the antenna device can radiate electromagnetic wave signals through different positions of the electronic device, thereby adapting to antenna radiation requirements in different scenes.

The above embodiments mainly describe a structure of an antenna device when the radiator is on a metal bezel of an electronic device. In the following embodiments, the resonant modes generated by the first feed 11 and the second feed 12 exciting the radiator are described separately.

In one embodiment, the resonant mode generated by the first feed 11 exciting the first radiator 221 includes at least one of:

a first resonant mode, in which a resonant current is distributed between the first slot 211 and the first feeding point a1 or a matching point B disposed near the first feeding point, and between the second slot 212 and the first feeding point a1, as shown in fig. 8 and 9.

A second resonance mode, in which a resonance current is distributed between the first slit 211 and the second slit 212, as shown in fig. 10.

In the first resonance mode, a current may flow from the first slot 211 to the first feeding point a1 and from the second slot 212 to the first feeding point a1, forming a reverse current; alternatively, the above current may also flow from the first feeding point a1 to the first slot 211 and from the first feeding point a1 to the second slot 212.

In the second resonant mode, a current may flow from the first slot 211 to the second slot 212, or from the second slot 212 to the first slot 211, forming a current in the same direction, which may also be referred to as a balanced mode current.

In the above antenna device, the first feeding point a1 presents a low impedance state in the first operating frequency band, so that the first radiator 221 can generate the first resonance mode and the second resonance mode simultaneously when excited by the first feed 11. The low impedance state may refer to the first feed point a1 being low impedance to ground, e.g., a low impedance ground path in the first matching circuit 31 to which the first feed point a1 is connected.

The first feed point a1 may further include another matching point B, which may present a low impedance state in the first frequency band, so that the first radiator 221 may generate the first resonant mode and the second resonant mode simultaneously when excited by the first feed 11.

In addition, when the first feeding point a1 or the matching point B is grounded, the first radiator 221 may generate a first resonant mode when excited by the first feed 11, or may generate a second resonant mode; in the case that the first feeding point a1 or the matching point B does not exhibit a low impedance state for the first frequency band, the first radiator 221 may be excited by the first feed 11 to generate a second resonant mode.

Under the first tuning of the matching circuit, the resonant mode generated by the first feed 11 exciting the first radiator 221 may correspond to different resonant frequencies. Alternatively, the first resonant frequency f1 corresponding to the first resonant mode may be lower than the second resonant frequency f2 corresponding to the second resonant mode, as shown in fig. 11.

In order to make the resonant frequency corresponding to the first resonant mode smaller than the resonant frequency corresponding to the second resonant mode, and the resonant frequencies are all located in the first operating frequency band of the first feed 11, the positions of the first slot 211, the second slot 212, and the first feeding point a1 in the antenna apparatus may be designed accordingly. Alternatively, the distance between the first slot 211 and the first feeding point a1 may correspond to a quarter wavelength of the first resonant frequency; the distance between the first slit 211 and the second slit 212 corresponds to a half wavelength of the second resonant frequency. Taking fig. 8 as an example, the distance between the first slot 211 and the first feeding point a1 may be a quarter wavelength corresponding to the resonant frequency point f1 in fig. 11; the distance between the first gap 211 and the second gap 212 may correspond to a half wavelength corresponding to the second resonant frequency f2 in the first frequency band; since the first resonant frequency f1 is lower than the second resonant frequency f2, the distance from the first feeding point a1 to the second slot 212 may be less than a quarter wavelength corresponding to the resonant frequency f 1.

In the antenna device, the first feed source 11 excites the first radiator 221 to generate the first resonance mode and the second resonance mode, so that the radiation bandwidth of the antenna device in the first working frequency band is increased, and the antenna device can adapt to the requirement of an ultra-wideband scene in the first working frequency band; further, the first resonance mode and the second resonance mode correspond to different spatial radiation fields, so that the antenna device can radiate electromagnetic wave signals to different spatial coverage ranges.

In one embodiment, the resonant mode generated by the first feed 11 exciting the first radiator 221 may further include a third resonant mode. The resonance current of the third resonance mode is distributed between the first matching point B1 and the second slot 212, as shown in fig. 12.

In the third resonance mode, the first matching point B1 may exhibit a low impedance state in the first operating frequency band, so that the induced current may flow back to ground at the first matching point B1. Since the first slot 211 and the first feeding point a1 are distributed on two sides of the first matching point B1, when the electromagnetic wave signal output by the first feed 11 propagates to the first matching point B1, a part of the induced current generated flows back to the ground, and the electromagnetic wave signal propagating to the first slot 211 is reduced, so that the electromagnetic wave signal of the first operating frequency band radiated outside through the first slot 211 is reduced. The electromagnetic wave signal output from the first feed 11 can propagate from the first feed point a1 to the second slot 212, and radiate to the space through the second slot 212. That is, in the third resonance mode, the main radiation region of the electromagnetic wave signal output by the first feed 11 is the first feeding point a1 to the second slot 212.

Alternatively, the first matching point B1 of the antenna device, which is located between the first slot 211 and the first feeding point a1, may be grounded through the third matching circuit 33, and present a low impedance state in the first operating frequency band, so that the first radiator 221 may generate a third resonant mode under the excitation of the first feed 11. The third matching circuit 33 may include a switch, and when the switch is turned on to the ground, the first matching point B1 is in a low impedance state in the first operating frequency band; alternatively, the third matching resistor may include a capacitor, one end of the capacitor is connected to the first matching point B1, and the other end of the capacitor is connected to ground; the capacitor may be a dc blocking capacitor corresponding to the first operating frequency band, and when the capacitor is connected to ground, the first matching point B1 has a low impedance state in the first operating frequency band.

In the above antenna apparatus, under the condition that the first radiator 221 is excited by the first feed 11 to generate the third resonant mode, the resonant frequency of the third resonant mode can be adjusted according to the radiation requirement of the electronic device. The first matching point B1 connected to the first feeding point a1 in the antenna device may be used to adjust the resonant frequency of the third resonant mode, and the antenna device may be further provided with other matching circuits to tune the resonant frequency of the third resonant mode. Optionally, the first radiator 221 may have a second matching point B2; the second matching point B2 may be connected to the fourth matching circuit 34. The fourth matching circuit 34 adjusts the electrical length of the first radiator 221 through a switch or a variable capacitor, so that the third resonant mode covers the transmission and reception of the electromagnetic wave signal in the first operating frequency band. The second matching point B2 may be located on a metal bottom frame of the electronic device, or may be located on a first metal side frame of the electronic device, which is not limited herein. As shown in fig. 13, the second matching point B2 in the antenna device may be located on the first metal bezel, and the second matching point B2 may be connected to ground through the fourth matching circuit 34. When the matching state in the matching circuit changes, the return path of the induced current in the first radiator 221 is changed, which is equivalent to adjusting the electrical length of the first radiator 221 in the first working frequency band, so that the resonant frequency of the third resonant mode can change along with the change of the matching state, and thus the resonant frequency of the third resonant mode can be adjusted to any frequency point in the first working frequency band, so that the third resonant mode can cover the receiving and sending of the electromagnetic wave signal in the first working frequency band.

In the antenna apparatus, the first feed 11 may excite the first radiator 221 to generate a third resonant mode, and in this mode, the electromagnetic wave signal output by the first feed 11 may be radiated to the space through the second slot 212 on the metal side frame of the electronic device, so that the electronic device may radiate the electromagnetic wave signal of the first working frequency band in the third resonant mode according to the scene requirement.

In one embodiment, on the basis of the above embodiments, the electronic device may excite the radiator to generate the third resonant mode by the first feed 11 when the electronic device is in the landscape holding scene.

The electronic equipment can detect the posture of the electronic equipment through a gyroscope and other components, and determine whether the electronic equipment is in a landscape holding scene; the electronic equipment can detect whether a user is close to the electronic equipment through a sensor arranged on a frame of the electronic equipment, and then whether the electronic equipment is in a transverse screen holding posture scene is determined according to the contact position of the user equipment and the electronic equipment. In another implementation, a user may select whether to employ a landscape mode in an application in the electronic device, and the electronic device may determine whether the electronic device is in a landscape grip scene based on the user's selection. The determination method for the landscape gripping gesture scene is not limited herein.

After determining that the device is in the landscape holding scene, the electronic device may adjust the matching state of the third matching circuit 33, for example, turn on a switch in the third matching circuit 33 to ground, so that the first matching point B1 is in a low impedance state for the first operating frequency band, and the first radiator 221 may generate a third resonant mode under the excitation of the first feed 11. In another implementation, the third matching circuit 33 may be grounded through a capacitor, so that the first radiator 221 may be excited by the first feed 11 to generate a third resonant mode in a landscape holding posture scene, a portrait holding posture scene, and a free space scene, that is, the first resonant mode, the second resonant mode, and the third resonant mode may be excited simultaneously.

In the scene of holding the holding posture of the electronic equipment, the first feed source 11 in the antenna device can excite the first radiating body 221 to generate a third resonance mode, so that an electromagnetic wave signal output by the first feed source 11 can radiate to the space through the second gap 212, the influence of a user on the radiation performance of the antenna device when the user holds the electronic equipment by holding the holding posture of the electronic equipment by holding the electronic equipment by holding the holding equipment by holding the electronic equipment by holding the electronic equipment by holding the electronic equipment by holding the electronic equipment by holding the electronic equipment by holding the electronic equipment by holding the electronic equipment by the holding the electronic equipment by holding the electronic equipment by the holding the electronic equipment by the holding the electronic equipment by the holding the.

In one embodiment, the resonant mode generated by the second feed 12 exciting the radiating element 20 includes at least one of:

a fourth resonance mode, a resonance current in the fourth resonance mode, may be distributed between the first ground point C1 and the first matching point B1, as shown in fig. 14.

The fifth resonance mode, a resonance current in the fifth resonance mode, may be distributed between the second feeding point a2 and the first matching point B1, as shown in fig. 15.

A sixth resonance mode, a resonance current in the sixth resonance mode, may be distributed between the second feeding point a2 and the second slot 212, as shown in fig. 16.

The seventh resonance mode, a resonance current in the seventh resonance mode, may be distributed between the second feeding point a2 and the first slot 211, as shown in fig. 17.

The eighth resonance mode, a resonance current in the eighth resonance mode, may be distributed between the first ground point C1 and the first slot 211, as shown in fig. 18.

In the fourth resonant mode, induced current generated by the electromagnetic wave signal output by the second feed 12 can flow from the first grounding point C1 to the first matching point B1; and may also flow from the first matching point B1 to the first ground point C1. In the fifth resonance mode, an induced current generated by an electromagnetic wave signal output from the second feed 12 may flow from the second feeding point a2 to the first matching point B1, and may also flow from the first matching point B1 to the second feeding point a 2. In the sixth resonant mode, the induced current generated by the electromagnetic wave signal output by the second feed 12 may include a reverse current distributed between the second feeding point a2 and the second slot 212, and the induced current may flow from the second slot 212 to the second feeding point a2 or from the second feeding point a2 to the second slot 212. Wherein, the electromagnetic wave signal output by the second feed source 12 can be coupled through the first slot 211, so that the induced current can continue to propagate through the first slot 211.

In the seventh resonance mode, an induced current generated by an electromagnetic wave signal output from the second feed 12 may flow from the second feeding point a2 to the first slot 211, and may also flow from the first slot 211 to the second feeding point a 2. In the eighth resonance mode, an induced current generated by the electromagnetic wave signal output from the second feed 12 may include a reverse current between the first ground point C1 and the first slot 211, and the induced current may flow from the first ground point C1 to the first slot 211 and may also flow from the first slot 211 to the first ground point C1.

It should be noted that the resonant mode may be a partial resonant mode generated by the second feed 12 exciting the radiator, and the second feed 12 may also excite the radiator to generate other resonant modes. For example, induced currents generated by electromagnetic field signals output from the second feed 12 in the antenna device may flow from the second feeding point a2 to other regions of the second radiator 222 through the first grounding point C1, and the resonant mode with smaller induced current strength is not described here in this embodiment.

In the above resonance mode, the second feeding point a2 and the first matching point B1 may have a low impedance state in the second operating frequency band, so that the induced current may flow back to the ground at the first feeding point. Other matching points may be included near the second feed point a2 and may be low impedance grounded through a matching network so that multiple resonant modes may be generated simultaneously when the second radiator 222 and the first radiator 221 are excited by the second feed 12. Alternatively, in the case that the second feeding point a2 presents a low impedance state in the second operating frequency band through the second matching circuit 32, and the first matching point B1 presents a low impedance state in the second operating frequency band through the third matching circuit 33, the second feed 12 may excite the first radiator 221 and the second radiator 222 to simultaneously generate the fourth resonant mode to the eighth resonant mode.

Under the second tuning of the matching circuit, the resonant modes excited by the second feed 12 may be arranged from small to large according to the corresponding resonant frequencies: a fourth resonance mode, a fifth resonance mode, a sixth resonance mode, a seventh resonance mode, and an eighth resonance mode. As shown in fig. 19, the resonant frequencies corresponding to the fourth resonant mode to the eighth resonant mode may respectively correspond to a fourth resonant frequency f4, a fifth resonant frequency f5, a sixth resonant frequency f6, a seventh resonant frequency f7 and an eighth resonant frequency f8 in the second operating frequency band.

Under the tuning of the matching circuit, the resonance frequency generated by the sixth resonance mode is greater than the resonance frequency generated by the fifth resonance mode. Optionally, under the third tuning of the matching circuit, the resonant modes excited by the second feed 12 may be arranged from small to large according to the corresponding resonant frequencies: a fourth resonance mode, a sixth resonance mode, a fifth resonance mode, a seventh resonance mode, and an eighth resonance mode, as shown in fig. 20.

In order to arrange the resonant frequencies corresponding to the resonant modes in the above order, the positions of the first slot 211, the second slot 212, the second feeding point a2, the first grounding point C1, and the first matching point B1 of the antenna device may be designed accordingly. Optionally, the distance between the first ground point C1 and the first slot 211 corresponds to between one eighth and one quarter wavelength of the fourth resonance frequency; the distance between the first matching points B1 of the first slits 211 corresponds to a quarter wavelength of the fifth resonance frequency; the distance between the first slit 211 and the second slit 212 corresponds to the wavelength of the sixth resonance frequency; the distance between the second feeding point a2 and the first slot 211 corresponds to a quarter wavelength of the seventh resonance frequency; the distance between the first ground point C1 and the first slot 211 corresponds to three-quarters of the wavelength of the eighth resonance frequency. Taking fig. 13 as an example, the distance from the first ground point C1 to the first slot 211 may correspond to a quarter wavelength of f 4; the distance between the first slit 211 and the first matching point B1 may correspond to a quarter wavelength of f 5; the distance between the first slit 211 and the second slit 212 corresponds to the wavelength f 6; the distance between the second feeding point a2 to the first slot 211 corresponds to a quarter wavelength of f 7; the distance between the first ground point C1 and the first slit 211 corresponds to three-quarters of the wavelength of f 8.

According to the antenna device, the radiator is excited simultaneously in the second working frequency band to generate the fourth resonant mode to the eighth resonant mode, so that the radiation bandwidth of the antenna device in the second working frequency band is increased, and the antenna device can meet the requirement of an ultra-wideband scene in the second working frequency band.

In one embodiment, when the electronic device is in the portrait grip scenario, the second feed 12 excites the first radiator 221 and the second radiator 222 to generate the remaining resonant modes except the sixth resonant mode.

Similar to the method for determining the landscape screen holding posture scene, the electronic equipment can detect the posture of the electronic equipment through a gyroscope and other components, and determine whether the electronic equipment is in the portrait screen holding posture scene; the electronic equipment can detect whether a user is close to the electronic equipment through a sensor arranged on a frame of the electronic equipment, and then whether the electronic equipment is in a vertical screen holding posture scene is determined according to the contact position of the user equipment and the electronic equipment. In another implementation, a user may select whether to employ a portrait mode in an application in the electronic device, and the electronic device may determine whether the electronic device is in a portrait grip scene based on the user's selection. The determination method for the vertical screen holding gesture scene is not limited herein.

In the sixth resonance mode, the electric field intensity point of the electromagnetic wave signal may be located at a position where E is located in fig. 21. When the second feed 12 excites the second radiator 222 and the first radiator 221 to generate the sixth resonant mode, if the user holds the electronic device in a vertical screen, the position of the radiator on the first metal side frame of the electronic device, as shown by the dashed line frame in fig. 21, is easily blocked by the hand of the user, which results in the radiation performance of the antenna apparatus in the second operating frequency band being degraded. Therefore, in the vertical screen holding posture scene of the electronic equipment, the antenna device can avoid exciting the sixth resonant mode.

In order to prevent the portion of the antenna device where the user holds the electronic device from shielding the radiator for radiating the electromagnetic wave signal, a matching circuit may be added at the electric field intensity point, for example, a matching circuit may be added at an electric field intensity point E in fig. 21, so that the resonant frequency of the sixth resonant mode is outside the operating frequency band. Optionally, a third matching point B3 may be disposed on the first radiator 221; the third matching point B3 may be connected to the fifth matching circuit 35; the fifth matching circuit 35 may be configured to adjust a position of an electric field intensity point on the first radiator 221, so that the radiator that radiates the electromagnetic wave signal is far away from the shielded area in the holding position of the vertical screen. The third matching point B3 may be disposed between the first feeding point a1 and the second slot 212, as shown in fig. 22; alternatively, the third matching point B3 is disposed between the first feeding point a1 and the first slot 211, as shown in fig. 23.

Under the condition that the third matching point B3 is in a low impedance state in the second working frequency band, the induced current generated by the electromagnetic wave signal output by the second feed source 12 can flow back to the ground at the third matching point B3, and the state of the electric field strong point at the position of the third matching point B3 is changed, so that the resonant frequency of the sixth resonant mode is outside the working frequency band. The fifth matching circuit 35 may make the third matching point B3 be in a low impedance state in the second operating frequency band through a capacitor, an inductor, a short-circuit stub, and the like.

In one implementation, the fifth matching circuit 35 may include a first inductor L0, a second inductor L1, and a first capacitor C0; one end of the first inductor L0 is connected to one end of the first capacitor C0, the other end of the first inductor L0 is connected to one end of the second inductor L1, and the other end of the second inductor L1 is connected to the other end of the first capacitor C0, as shown in fig. 24. The combined circuit including the first inductor L0, the second inductor L1 and the first capacitor C0 can make the third matching point B3 have a low impedance state in the second operating frequency band.

Alternatively, the third matching point B3 can be set to be in a high impedance state in the first operating frequency band and to be in a low impedance state in the second operating frequency band by the fifth matching circuit 35. Because the third matching point B3 is in a high impedance state in the first working frequency band, tuning of the second working frequency band in the vertical screen holding gesture scene does not affect the working mode excited by the first working frequency band.

In another implementation, the fifth matching circuit 35 may include a second switch; when the electronic device is in the landscape holding scene, the second switch is switched on to the first impedance network, so that the third matching point B3 is in a low impedance state in the second working frequency band. The first impedance network may be a ground network, or may be a capacitor or an inductor, and the capacitor and the inductor may be in a low impedance state in the second operating frequency band. Optionally, the first impedance network may also be a combined circuit shown in fig. 24 and including a first inductor L0, a second inductor L1, and a first capacitor C0.

When detecting that the device is in the vertical screen holding posture scene, the electronic device may adjust the matching state of the fifth matching circuit 35, for example, turn on a switch in the fifth matching circuit 35 to ground, so that the third matching point B3 is in a low impedance state for the second operating frequency band, and the first radiator 221 and the second radiator 222 may not generate the sixth resonant mode under excitation of the second feed 12. Alternatively, the fifth matching circuit 35 may be kept in the state as shown in the figure, so that the first radiator 221 and the second radiator 222 do not generate the sixth resonant mode when excited by the second feed 12 in the landscape holding posture scene, the portrait holding posture scene and the free space scene, that is, the resonant mode generated by the second feed 12 exciting the radiator may include the fourth resonant mode, the fifth resonant mode, the seventh resonant mode and the eighth resonant mode.

When the electronic device determines that the device is in the vertical screen holding posture scene, the second feed source 12 excites the radiator to generate other resonance modes except the sixth resonance mode; or, after determining that the device is in the vertical screen holding posture scene, the electronic device may further determine whether a hand of the user blocks a position of a radiator (which may be shown as a dashed line box in fig. 21) of a first metal side frame of the electronic device, and further determine whether to not excite the sixth resonance mode. For example, if the user holds the electronic device with his left hand, the user's left hand does not interfere with the signal radiation of the radiator on the first metal bezel, and therefore the fourth resonant mode to the eighth resonant mode can be excited simultaneously.

Optionally, the second feed 12 excites the radiator to generate the rest of the resonant modes except the sixth resonant mode in the case that the electronic device is in the landscape holding scene and the radiator on the first metal side frame is in the shielded state. The electronic device may determine whether the user's hand blocks the radiator on the first metal bezel by using a sensor disposed at the third matching point B3.

In the landscape screen holding scene of the electronic device, the second feed source 12 in the antenna apparatus may excite the first radiator 221 and the second radiator 222 not to generate the sixth resonant mode, so that the radiator radiating the electromagnetic wave signal output by the second feed source 12 is not shielded by the user, the influence on the radiation performance of the antenna apparatus when the user holds the electronic device in a portrait screen holding scene is reduced, and the radiation performance in the portrait screen holding scene is improved.

In one embodiment, as shown in fig. 25, the antenna device further includes a proximity sensor 40. The proximity sensor 40 may be used to trigger the electronic device to reduce the input power to the antenna assembly when a user approaches the antenna assembly. When the user approaches the electronic device, the proximity sensor 40 may detect a capacitance change caused by approach of a human body, thereby determining that the user approaches the electronic device. The electronic device may reduce the input power of the antenna arrangement in case of a user approaching. The power radiated by the antenna device is reduced, so that the influence of the antenna radiation on a human body is reduced, and the Specific Absorption Rate (SAR) value of the antenna is reduced. The SAR value is used for measuring the influence of antenna radiation on a human body, and the influence is quantified through the amount of electromagnetic radiation absorbed by the human body. Generally, the smaller the power radiated by the antenna, the lower the SAR value of the antenna device.

The electronic device may include one proximity sensor 40, or may include a plurality of proximity sensors 40, which is not limited herein. The proximity sensor 40 is required to detect a capacitance change generated in a radiator of an electronic device when a human body approaches, and thus, the proximity sensor 40 may be connected to at least one radiator. The proximity sensor 40 may be connected to the radiator at the matching point, may be connected to the radiator at the feeding point, and may be connected to other positions on the radiator, which is not limited herein.

The proximity sensor 40 may be connected to the radiator by an inductance to reduce the impact of the access of the proximity sensor 40 on the radiation performance of the antenna device. The inductance may isolate higher frequencies, for example an inductance of 82 nH.

The proximity sensor 40 needs to detect capacitance change through a floating metal body, and a blocking capacitor C1 may be disposed between the radiator and the matching circuit, such that one end of the blocking capacitor C1 is connected to the matching circuit, and the other end of the blocking capacitor C1 is connected to the radiator. The radiator is a floating metal body for the proximity sensor 40 when the proximity sensor 40 is connected to the other end of the dc blocking capacitor C1.

According to the antenna device, whether the user is close to the electronic equipment or not is detected through the proximity sensor 40, so that the input power of the antenna equipment can be reduced by the electronic equipment under the condition that the user is close to the electronic equipment, and the effect of intelligently carrying out SAR on the electronic equipment is achieved.

Fig. 26 is a schematic diagram of an internal structure of an electronic device in one embodiment. The electronic device may include the antenna apparatus in the above embodiments. The electronic device may be any terminal device such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, and a wearable device. The electronic device includes a processor and a memory connected by a system bus. The processor may include one or more processing units, among others. The processor may be a CPU (Central Processing Unit), a DSP (Digital Signal processor), or the like. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. The nonvolatile Memory may include a ROM (Read-Only Memory), a PROM (Programmable Read-Only Memory), an EPROM (Erasable Programmable Read-Only Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), or a flash Memory. Volatile Memory can include RAM (Random Access Memory), which acts as external cache Memory. By way of illustration and not limitation, RAM is available in many forms, such as SRAM (Static Random Access Memory), DRAM (Dynamic Random Access Memory), SDRAM (Synchronous Dynamic Random Access Memory), Double Data Rate DDR SDRAM (Double Data Rate Synchronous Random Access Memory), ESDRAM (Enhanced Synchronous Dynamic Random Access Memory), SLDRAM (Synchronous Link Dynamic Random Access Memory), RDRAM (Random Dynamic Random Access Memory), and DRmb DRAM (Dynamic Random Access Memory).

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An antenna device, applied to an electronic device, includes: the device comprises a feed source and a radiation unit connected with the feed source;

the radiation unit is excited by the feed source to generate a plurality of resonance modes in the same frequency band, and different resonance modes form different resonance current distributions on the radiation unit;

each resonance mode is used for generating a spatial radiation field corresponding to the frequency band, and the spatial coverage of the spatial radiation field corresponding to different resonance modes is different.

2. The antenna apparatus of claim 1, wherein the feeds comprise a first feed and a second feed; the radiation unit comprises a plurality of radiators formed by at least two gaps at intervals; the first feed source and the second feed source are respectively connected with different radiators; the antenna device further comprises a plurality of matching circuits connected with different radiators;

the first feed source works in a first frequency band and is used for exciting one or more radiators to generate a plurality of resonance modes covering the first frequency band under the tuning of one or more matching circuits, each resonance mode covering the first frequency band is used for generating a spatial radiation field corresponding to the first frequency band, and the spatial coverage ranges of any two spatial radiation fields corresponding to the first frequency band are different;

the second feed source works in a second frequency band and is used for exciting one or more radiators to generate multiple resonance modes covering the second frequency band under the tuning of one or more matching circuits, each resonance mode covering the second frequency band is used for generating a spatial radiation field corresponding to the second frequency band, and the spatial coverage ranges of any two spatial radiation fields corresponding to the second frequency band are different.

3. The antenna device according to claim 2, wherein the at least two slots include a first slot opened on a metal bottom frame of the electronic apparatus, and a second slot opened on a first metal side frame of the electronic apparatus;

the plurality of radiators include a first radiator between the first slot and the second slot, a second radiator far from the second slot, and a third radiator far from the first slot.

4. The antenna device according to claim 3, wherein the first feed is connected to the first feed point of the first radiator through a first matching circuit; the second feed source is connected with a second feed point of the second radiator through a second matching circuit; and the first working frequency band of the first feed source is lower than the second working frequency band of the second feed source.

5. The antenna device according to claim 4, wherein a first matching point is disposed on the first radiator, and the first matching point is connected to a third matching circuit; the first matching point is disposed between the first slot and the first feeding point.

6. The antenna assembly of claim 5 wherein the resonant mode generated by the first feed exciting the first radiator comprises at least one of:

a first resonant mode in which a resonant current is distributed between the first slot and the first feeding point or a matching point disposed near the first feeding point, and between the second slot and the first feeding point;

a second resonant mode in which a resonant current is distributed between the first gap and the second gap.

7. The antenna assembly of claim 6 wherein said first feed excites said first radiator to produce both said first resonant mode and said second resonant mode when said first feed exhibits a low impedance state in said first operating frequency band.

8. The antenna device according to claim 6, characterized in that the distance between the first slot to the first feeding point corresponds to a quarter wavelength of a first resonance frequency; the distance between the first gap and the second gap corresponds to one half wavelength of a second resonant frequency; the first resonant frequency is a resonant frequency corresponding to the first resonant mode, and the second resonant frequency is a resonant frequency corresponding to the second resonant mode.

9. The antenna device of claim 6, wherein at a first tuning of the matching circuit, a first resonant frequency corresponding to the first resonant mode is lower than a second resonant frequency corresponding to the second resonant mode.

10. The antenna device of claim 6, wherein the resonant mode generated by the first feed exciting the first radiator further comprises a third resonant mode; the resonant current of the third resonant mode is distributed between the first matching point and the second gap.

11. The antenna assembly of claim wherein the first feed excites the first radiator to produce the third resonant mode when the first matching point exhibits a low impedance state in the first operating frequency band.

12. The antenna device of claim, wherein the first radiator is provided with a second matching point; the second matching point is connected with a fourth matching circuit; the fourth matching circuit adjusts the electrical length of the first radiator through a switch or a variable capacitor, so that the third resonant mode covers the receiving and transmitting of the electromagnetic wave signals of the first working frequency band.

13. The antenna device according to any of the preceding claims, wherein the first feed excites the first radiator to produce the third resonant mode when the electronic device is in a landscape grip scenario.

14. The antenna device according to claim 5, wherein a first ground point is provided on the second radiator; the first grounding point is arranged on one side, away from the first gap, of the second feeding point.

15. The antenna assembly of claim 14 wherein the resonant modes generated by the second feed exciting the radiating element include at least one of:

a fourth resonant mode in which a resonant current is distributed between the first ground point and the first matching point;

a fifth resonance mode in which a resonance current is distributed between the second feeding point and the first matching point;

a sixth resonant mode, in which a resonant current in the sixth resonant mode is distributed between the second feeding point and the second slot;

a seventh resonance mode, wherein a resonance current in the seventh resonance mode is distributed between the second feeding point and the first slot;

an eighth resonant mode in which a resonant current is distributed between the first ground point and the first gap.

16. The antenna device of claim 15, wherein the second feed point exhibits a low impedance state at the second operating frequency band, and wherein the second feed excites the first radiator and the second radiator to simultaneously generate the fourth resonant mode through the eighth resonant mode when the first matching point exhibits a low impedance state at the second operating frequency band.

17. The antenna device according to claim 16, characterized in that the distance between the first ground point and the first slot corresponds to between one eighth and one quarter wavelength of a fourth resonance frequency; the fourth resonant frequency is a resonant frequency corresponding to the fourth resonant mode;

the distance between the first matching points of the first gap corresponds to a quarter wavelength of a fifth resonant frequency; the fifth resonance frequency is a resonance frequency corresponding to the fifth resonance mode;

the distance between the first gap and the second gap corresponds to the wavelength of a sixth resonant frequency; the sixth resonant frequency is a resonant frequency corresponding to the sixth resonant mode;

the distance between the second feeding point and the first gap corresponds to a quarter wavelength of a seventh resonant frequency; the seventh resonant frequency is a resonant frequency corresponding to the seventh resonant mode;

the distance between the first grounding point and the first gap corresponds to three-quarter wavelength of eighth resonant frequency; the eighth resonant frequency is a resonant frequency corresponding to the eighth resonant mode.

18. The antenna device according to claim 15, characterized in that under the second tuning of the matching circuit, the resonance modes excited by the second feed are arranged in order from smaller to larger according to the corresponding resonance frequencies: the fourth resonant mode, the fifth resonant mode, the sixth resonant mode, the seventh resonant mode, the eighth resonant mode.

19. The antenna device according to claim 15, characterized in that under a third tuning of the matching circuit, the resonance modes excited by the second feed are arranged in order from smaller to larger according to the corresponding resonance frequencies: the fourth resonant mode, the sixth resonant mode, the fifth resonant mode, the seventh resonant mode, the eighth resonant mode.

20. The antenna assembly of any of claims 15-19, wherein the second feed excites the first radiator and the second radiator to produce resonant modes other than the sixth resonant mode when the electronic device is in a portrait grip scenario.

21. The antenna device of claim, wherein a third matching point is disposed on the first radiator; the third matching point is connected with a fifth matching circuit; the fifth matching circuit is used for adjusting the position of an electric field strong point on the first radiator, so that the radiator radiating the electromagnetic wave signal output by the second feed source is far away from a shielded area in the holding posture of the vertical screen.

22. The antenna device of, wherein the third matching point is disposed between the first feeding point and the second slot; or, the third matching point is disposed between the first feeding point and the first slot.

23. The antenna device of, wherein said fifth matching circuit comprises a first inductor, a second inductor, and a first capacitor; one end of the first inductor is connected with one end of the first capacitor, the other end of the first inductor is connected with one end of the second inductor, and the other end of the second inductor is connected with the other end of the first capacitor.

24. The antenna device of claim, wherein said third matching point exhibits a high impedance state in said first operating frequency band and a low impedance state in said second operating frequency band.

25. The antenna device of, wherein said fifth matching circuit comprises a second switch; and when the electronic equipment is in a vertical screen holding posture scene, the second change-over switch is conducted to the first impedance network, so that a third matching point is in a low impedance state in the second working frequency band.

26. The antenna device of claim, wherein the second feed excites the first radiator and the second radiator to generate resonant modes other than the sixth resonant mode when the electronic device is in a portrait grip scene and the third matching point is in an occluded state.

27. The antenna device according to any of claims 2-5, characterized in that the first matching circuit comprises a first frequency selective filter network; the first frequency-selective filter network is used for conducting electromagnetic wave signals output by the first feed source; the second matching circuit comprises a second frequency-selective filter network; the second frequency-selecting filter network is used for conducting the electromagnetic wave signals output by the second feed source.

28. The antenna device according to claim 4 or 5, characterized in that the antenna device further comprises a proximity sensor; the proximity sensor is used for triggering the electronic equipment to reduce the input power of the antenna device when a user approaches the antenna device.

29. The antenna device of claim 28, wherein the proximity sensor is connected to at least one radiator.

30. The antenna device according to claim 29, wherein a dc blocking capacitor is provided between the radiator to which the proximity sensor is connected and the matching circuit.

31. The antenna device according to claim 4 or 5, characterized in that a second ground point is provided on the third radiator; the second grounding point is arranged on one side, close to the second gap, of the third radiator.

32. The antenna device according to any of claims 2-5, characterized in that the operating frequency band of the first feed is less than 1GHz and the operating frequency band of the second feed is greater than 1GHz and less than GHz.

33. An electronic device, characterized in that the electronic device comprises an antenna arrangement according to any of claims 1-32.