CN117673710A

CN117673710A - Antenna device and electronic equipment

Info

Publication number: CN117673710A
Application number: CN202211090993.7A
Authority: CN
Inventors: 陈栋; 张会彬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2024-03-08

Abstract

The present disclosure relates to the field of mobile communications technologies, and in particular, to an antenna device and an electronic device. The antenna device comprises a feed module, a first conductive branch and a second conductive branch. The first conductive branch is provided with a first feeding point which is electrically connected with the feeding module; the feed module is for inputting an excitation current via a first feed point, enabling the first conductive branch to be used to support global positioning system (Global Positioning System, GPS) signals as well as long term evolution (Long Term Evolution, LTE signals). The second conductive branch is arranged at intervals with the first conductive branch; the second conductive branch is provided with a second feeding point which is electrically connected with the feeding module; the feed module is for inputting an excitation current via a second feed point, enabling the second conductive branch to be used to support GPS signals. The electronic equipment comprises a shell and the antenna device, and the antenna device is integrated in the shell. The antenna device has better hand holding performance.

Description

Antenna device and electronic equipment

Technical Field

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

Background

With the development and progress of technology, communication technology has been rapidly developed and advanced, and with the improvement of communication technology, the popularization of intelligent electronic products has been improved to an unprecedented level, and more intelligent terminals or electronic devices become an indispensable part of people's life, such as smart phones, smart bracelets, smart watches, smart televisions, computers, etc. The electronic devices perform signal transmission through the built-in antenna device so as to realize functions of voice communication, navigation positioning, wireless internet surfing and the like. The radiator is used as an important component of the antenna device, and the design form and the position layout in the mobile phone directly influence the communication performance of the antenna device.

The antenna device of the current electronic device generally includes a first metal branch capable of supporting GPS signals and a plurality of second metal branches capable of supporting a plurality of frequency bands of LTE signals, where the first metal branch and the second metal branch are disposed at intervals. With such a layout, the first metal branch for supporting the GPS signal has poor hand-holding performance, and once the position of the first metal branch is blocked, the radiation efficiency of the GPS signal of the first metal branch is significantly reduced.

Disclosure of Invention

The embodiment of the application provides an antenna device and electronic equipment.

In a first aspect, an embodiment of the present application provides an antenna device including a feed module, a first conductive branch, and a second conductive branch. The first conductive branch is provided with a first feeding point which is electrically connected with the feeding module; the feed module is for inputting an excitation current via a first feed point, enabling the first conductive branch to be used to support global positioning system (Global Positioning System, GPS) signals as well as long term evolution (Long Term Evolution, LTE signals). The second conductive branch is arranged at intervals with the first conductive branch; the second conductive branch is provided with a second feeding point which is electrically connected with the feeding module; the feed module is for inputting an excitation current via a second feed point, enabling the second conductive branch to be used to support GPS signals.

In a second aspect, an embodiment of the present application provides an electronic device, including a housing and the antenna device described above, where the antenna device is integrated in the housing.

In the antenna device and the electronic equipment provided by the embodiment of the application, the antenna device adopts the first conductive branch and the second conductive branch to simultaneously support the GPS signal, when one of the first conductive branch and the second conductive branch is shielded (such as the shielding caused by holding the electronic device by a user), the other one can be responsible for the main radiation effect of the GPS signal, so that the radiation efficiency of the GPS signal supported by the antenna device is not greatly reduced due to shielding, and the holding performance of the antenna device is better. Further, the first conductive branch can be used for supporting the GPS signal and also can support the LTE signal, so that the LTE antenna and the GPS antenna do not need to be distributed on the two conductive branches, but the same conductive branch is multiplexed, the volume or the wiring area of the conductive branch of the antenna device can be reduced to a certain extent, and the wiring layout of the antenna device is facilitated.

Drawings

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

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

Fig. 2 is a schematic diagram of another structure of an antenna device according to an embodiment of the present application.

Fig. 3 is a schematic view of still another structure of the antenna device according to the embodiment of the present application.

Fig. 4 is a schematic view of still another structure of an antenna device according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a first conductive branch of an antenna device provided in an embodiment of the present application configured with a matching circuit.

Fig. 6 is a schematic diagram of a first conductive branch of an antenna device provided in an embodiment of the present application configured with another matching circuit.

Fig. 7 is an input reflection coefficient curve (S11 curve) and a radiation efficiency curve of a signal of a first conductive branch of the antenna device in a first frequency band of radiating LTE according to an embodiment of the present application.

Fig. 8 is an input reflection coefficient curve (S11 curve) and a radiation efficiency curve of a signal of the first conductive branch of the antenna device in the radiation GPS L5 frequency band according to the embodiment of the present application.

Fig. 9 is a simulation result of a radiation pattern of the first conductive branch of the antenna device provided in the embodiment of the present application when radiating signals in the GPS L5 band

Fig. 10 is a schematic distribution diagram of an antenna body supporting Wi-Fi signals and supporting GPS signals in the antenna device according to the embodiment of the present application.

Fig. 11 is a schematic distribution diagram of an antenna body supporting LTE signals in an antenna apparatus according to an embodiment of the present application.

Fig. 12 is a schematic distribution diagram of an antenna body supporting 5G NR signals in an antenna apparatus according to an embodiment of the present application.

Fig. 13 is a schematic diagram of an electronic device provided in an embodiment of the present application.

Fig. 14 is a schematic view of the internal structure of the electronic device shown in fig. 13.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

As used in embodiments of the present application, an "electronic device" includes, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection (e.g., via a public-switched telephone network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network) and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," wireless terminal, "" electronic device, "and/or" electronic apparatus. Examples of electronic devices include, but are not limited to, satellites or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers, gaming machines, or other electronic devices that include radiotelephone transceivers.

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.

Referring to fig. 1, an antenna device 100 according to an embodiment of the present application includes an antenna body 10 and a feeding module 30 connected to the antenna body 10. The antenna body 10 is used for receiving and transmitting radio frequency signals, and the feed module 30 is used for feeding current signals to the antenna body 10, so that the antenna body 10 can resonate to radiate radio frequency signals. The feed module 30 is adapted to be connected to and controllable by a motherboard of an electronic device.

The antenna body 10 is configured to transmit or/and receive signals in at least one operating frequency band, which may include, for example, long term evolution (Long Term Evolution, LTE) signals. The operating frequency band of the signal radiated by the antenna body 10 may include at least one frequency band of LTE, for example, a low frequency band (LB frequency band), and the sub-frequency band of the LB frequency band may include: b5 frequency band (0.824 GHz-0.894 GHz), B8 frequency band (0.88 GHz-0.96 GHz), B20 frequency band (0.791 GHz-0.862 GHz), B28 frequency band (0.703 GHz-0.803 GHz); for example, an intermediate frequency band (MB band), the sub-bands of the MB band may include: b1 frequency band (1.92 GHz-2.17 GHz), B3 frequency band (1.71 GHz-1.88 GHz), B2 frequency band (1.85 GHz-1.99 GHz); for example, a high frequency band (HB band), a sub-band of the HB band may include: the B40 band (2.30 GHz-2.40 GHz), the B41 band (2.496 GHz-2.690 GHz), etc. The signals radiated by the antenna body 10 may further include a New Radio (NR) signal of a fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G), and the working frequency band thereof may further include at least one frequency band of 5G NR, for example, an N1 frequency band (1.92 GHz-2.17 GHz), an N2 frequency band (1.85 GHz-1.99 GHz), an N41 frequency band (2.496 GHz-2.690 GHz), an N78 frequency band (3.30 GHz-3.80 GHz), and so on. The signals radiated by the antenna body 10 may also include global positioning system (Global Positioning System, GPS) signals, such as L1 band (1575.45 MHz), L2 band (1227.60 MHz), L5 band (1176.45 MHz) of GPS signals, and the like. The signals radiated by the antenna body 10 may also include Wireless-Fidelity (Wi-Fi) signals, such as 2.4G bands, 5G bands, etc. of Wi-Fi signals. In the embodiment of the present application, the frequency band supported by the antenna body 10 covers at least one of the above-mentioned operating frequency bands.

In the embodiment of the present application, the antenna body 10 includes a first conductive branch 11 and a second conductive branch 12, and the first conductive branch 11 and the second conductive branch 12 are disposed at intervals. It should be understood that in this application, "spaced apart" of one element from another does not mean that the two elements are spaced apart relative to each other, but rather that the two elements are disposed in spaced apart relation without direct physical connection, that the two elements may or may not be spaced apart relative to each other but are merely spaced apart, or that the two elements may be spaced apart and provided with a third element. The first conductive branch 11 is provided with a first feeding point 111, the first conductive branch 11 is electrically connected with the feeding module 30 through the first feeding point 111, and the feeding module 30 feeds exciting current to the first conductive branch 11 through the first feeding point 111, so that the first conductive branch 11 can be used for supporting a GPS signal and an LTE signal. In some embodiments, the first conductive branch 11 is further provided with a first grounding point 113, and the first grounding point 113 is used for grounding. In this embodiment, the first grounding point 113 is located on the first conductive branch 11 and is adjacent to the first feeding point 111, so that the first conductive branch 11 forms a planar Inverted-F Antenna (IFA) Antenna structure, which can make impedance matching of the first conductive branch 11 better, and has small volume, simple structure and lower manufacturing cost.

The second conductive branch 12 is provided with a second feeding point 121, the second conductive branch 12 is electrically connected with the feeding module 30 through the second feeding point 121, and the feeding module 30 feeds exciting current to the second conductive branch 12 through the second feeding point 121, so that the second conductive branch 12 can be used for supporting GPS signals. Therefore, the antenna device 100 according to the embodiment of the present application adopts the first conductive branch 11 and the second conductive branch 12 that are spaced apart from each other to support the GPS signal at the same time, when one of the first conductive branch 11 and the second conductive branch 12 is blocked (for example, when a user holds the electronic device to cause a part of the antenna device 100 to be blocked), the other one can take charge of the main radiation effect of the GPS signal, so that the radiation efficiency of the GPS signal supported by the antenna device 100 is not greatly reduced due to the blocking, and the hand-holding performance of the GPS signal of the antenna device 100 is better. Further, the first conductive branch 11 can be used to support GPS signals and also can support LTE signals, so that the LTE antenna and the GPS antenna do not need to be distributed on two conductive branches, but the same conductive branch is multiplexed, so that the volume or the routing area of the conductive branch of the antenna body 10 can be reduced to a certain extent, which is beneficial to the routing layout of the antenna device 100.

Further, the first conductive branch 11 is configured to support a first frequency band of the LTE signal, where a center frequency point of the first frequency band falls within a frequency band range of the low frequency band. For example, the first frequency band may be a low frequency band of the LTE signal, and the sub-bands thereof may include at least one of the B2, B28, B5, and B8 frequency bands described above. The first frequency band in this embodiment of the present application should not be strictly limited to a low frequency band, for example, the first frequency band may cover the low frequency band, or a center frequency point of the first frequency band is within a frequency band range of the low frequency band (for example, the center frequency point of the first frequency band is between 0.703GHz and 0.894 GHz), or the first frequency band and the low frequency band have overlapping frequency bands, which means that an upper limit value of the frequency band range of the first frequency band may be slightly offset with respect to an upper limit value of the low frequency band (for example, the upper limit value of the frequency band range of the first frequency band may be slightly greater than or slightly less than the upper limit value of the low frequency band), and a lower limit value of the frequency band range of the first frequency band may be slightly offset with respect to a lower limit value of the low frequency band (for example, the lower limit value of the frequency band range of the first frequency band may be slightly greater than or slightly less than the lower limit value of the low frequency band). Specifically, in some embodiments, the center frequency point of the sub-band of the first frequency band falls within a frequency band range of 0.791GHz to 0.862GHz (B20 frequency band) or/and a frequency band range of 0.703GHz to 0.803GHz (B28 frequency band), and it may be considered that the first conductive branch 11 is used to support the B20 frequency band and the B28 frequency band (l+l frequency band) of the LTE signal. Therefore, the antenna device 100 and the electronic device provided with the antenna device 100 can meet the requirements of western european operators on the LTE communication frequency band, and can ensure that the application range of the antenna device 100 and the electronic device is wider.

Further, the first conductive branch 11 is used for supporting the L5 frequency band of the GPS signal, and the second conductive branch 12 is used for supporting the L1 frequency band of the GPS signal, so that the antenna device 100 can meet the requirement of the north american region on the GPS frequency band of the antenna device 100. The second conductive branch 12 is further used for supporting 5G NR signals, for example, for supporting N78 frequency band or N41 frequency band, so that the antenna body 10 of the antenna device 100 can support LTE signals, 5G NR signals and dual GPS signals by using two conductive branches, and the working frequency band is wider, and the occupied area of the wiring of the conductive branch is relatively smaller due to multiplexing of the conductive branches.

In this embodiment, the antenna device 100 may be in a frame antenna configuration, and the first conductive branch 11 and the second conductive branch 12 may be located at two ends (e.g. opposite ends, or approximately two ends of a diagonal line) of the antenna device 100, so that the first conductive branch 11 and the second conductive branch 12 are located at relatively far positions on the antenna device 100, and the distance between the two is as far as possible, which can ensure better isolation between the two and improve the hand-holding performance of GPS signals of the antenna device 100. Specifically, for example, the antenna device 100 may have a first end and a second end opposite to each other, and the first conductive branch 11 and the second conductive branch 12 may be located at opposite ends of the antenna device 100, respectively, such that the distance between the first conductive branch 11 and the second end is greater than the distance between the first conductive branch 11 and the first end, that is, the first conductive branch 11 is adjacent to or disposed at the first end; and the distance between the second conductive branch 12 and the first end is greater than the distance between the second conductive branch 12 and the second end, that is, the second conductive branch 12 is adjacent to or disposed at the second end. By elongating the distance between the first conductive branch 11 and the second conductive branch 12, it is possible to ensure a better isolation between the two, and to improve the hand-holding performance of the GPS signal of the antenna apparatus 100, for example, when the user holds the electronic apparatus equipped with the antenna apparatus 100 with one hand, the user usually holds one end of the electronic apparatus, if the first conductive branch 11 is disposed at this end, the GPS signal radiated by the end is weakened due to shielding, at this time, the other end of the electronic apparatus is not shielded by the user's hand, that is, the second conductive branch 12 is disposed at the other end, and the second conductive branch 12 is not shielded, so that the GPS signal radiated by the antenna apparatus 100 can mainly radiate the GPS signal through the second conductive branch 12, and in this case, the hand-holding performance is better. It should be understood that an element referred to in this embodiment of the present application includes an "end" portion or "end", which may be understood as a portion that occupies a substantial space, and which may be an end region of the element to which it belongs, e.g., the "end" portion may be a portion of the entity that extends beyond the end of the element, e.g., the "end" portion may have an extension that is no greater than one third of the extension of the element as a whole; for another example, the "end" portion may be a structure such as an end face or an end line of the extended end of the element, which does not substantially occupy a physical space.

Specifically, in the present embodiment, the arrangement of the antenna device 100 may be substantially presented as a rectangular frame-like antenna, which may be provided with a first side 1001 and a second side 1002 opposite, and with a third side 1003 and a fourth side 1004 opposite. The third side 1003 and the fourth side 1004 are respectively located between the first side 1001 and the second side 1001, in other words, the first side 1001 and the second side 1002 may be two sides opposite to each other on the rectangular frame shape, the third side 1003 and the fourth side 1004 may be two other sides opposite to each other on the rectangular frame shape, and the first side 1001, the third side 1003, the second side 1002 and the fourth side 1004 are sequentially connected end to form the rectangular frame shape. It should be understood that, in this specification, the arrangement of the antenna body 10 of the antenna device 100 is described in a "rectangular frame shape", and this should not be taken as a strict limitation on the structure of the antenna body 10, for example, the antenna body 10 may generally follow the outline of the "rectangular frame shape" without having to completely strictly cover the outline of the "rectangular frame shape", and in a part of the position of the outline of the "rectangular frame shape", the antenna body 10 may not have to cover or have a corresponding vacant structure. In this embodiment, the first conductive branch 11 may be disposed on the first side 1001 and arranged substantially along the length direction of the first side 1001. The second conductive branch 12 may be disposed on the fourth side 1004 and may be disposed in an extending arrangement along a length direction of the fourth side 1004. Further, the first conductive branch 11 is disposed at an end of the first side 1001 away from the fourth side 1004, and the second conductive branch 12 is disposed at an end of the fourth side 1004 away from the first side 1001, so that the first conductive branch 11 and the second conductive branch 12 can be respectively located at two opposite corners of the rectangular frame shape, and the distance between the two is as far as possible.

In this embodiment, the antenna body 10 may further include a third conductive branch 13, where the third conductive branch 13 is spaced from the first conductive branch 11, and the third conductive branch 13 is used to support LTE signals and 5G NR signals. Further as an example, the third conductive branch 13 is configured to support a second frequency band of the LTE signal, where a center frequency point of the second frequency band falls within a frequency band range of the low frequency band. For example, the second frequency band may be a low frequency band of the LTE signal, and the sub-frequency bands thereof may include at least one of the B2, B28, B5, and B8 frequency bands described above. The second frequency band in the embodiment of the present application should not be strictly limited to a low frequency band, for example, the second frequency band may cover the low frequency band, or a center frequency point of the second frequency band is within a frequency band range of the low frequency band (for example, a center frequency point of the second frequency band is between 0.703GHz and 0.894 GHz), or the second frequency band and the low frequency band have overlapping frequency bands, which means that an upper limit value of the frequency band range of the second frequency band may be slightly offset with respect to an upper limit value of the low frequency band, and a lower limit value of the frequency band range of the second frequency band may be slightly offset with respect to a lower limit value of the low frequency band.

Further, in the case that the first frequency band of the LTE signal supported by the first conductive branch 11 is a low frequency band, the second frequency band and the first frequency band of the LTE signal supported by the third conductive branch 13 are different. It should be understood that in the embodiments of the present application, the frequency ranges of the two frequency bands are not identical, for example, the frequency ranges of the two frequency bands may be completely different (e.g., there is no intersection between the two frequency bands), and for example, the frequency ranges of the two frequency bands may also partially overlap (e.g., there is an intersection between the two frequency bands, and at least part of the frequency of one frequency band is within the range of the other frequency band). Specifically, the center frequency point of the second frequency band is higher than the center frequency point of the first frequency band, for example, the center frequency points of the sub-frequency bands of the second frequency band may be both higher than the center frequency point of the sub-frequency bands of the first frequency band. As an example, the center frequency point of the sub-band of the first frequency band falls within the frequency band range of 0.791GHz to 0.862GHz (B20 frequency band) or/and within the frequency band range of 0.703GHz to 0.803GHz (B28 frequency band), and the center frequency point of the sub-band of the second frequency band may fall within the frequency band range of 0.880GHz to 0.960GHz (B8 frequency band) or/and within the frequency band range of 0.824GHz to 0.894GHz (B5 frequency band), it may be considered that the third conductive branch 13 is used to support the B5 frequency band and the B8 frequency band of the LTE signal.

In some embodiments, the third conductive branch 13 is further configured to support a third frequency band of the 5G NR signal, where a center frequency point of the third frequency band falls within a frequency band of the high frequency band. For example, the third frequency band may be a high frequency band of the 5G NR signal, and the sub-band thereof may include at least one of N41 and N78 described above. In the case where the second conductive branch 12 supports the 5G NR signal, the third conductive branch 13 can also support the 5G NR signal, and the conductive branches are multiplexed, the structure of the antenna body 10 can be simplified and the cost can be reduced to some extent.

In this embodiment, the third conductive branch 13 may be specifically located on the second side 1002 or/and the third side 1003 of the antenna device 100, so that the third conductive branch 13, the second conductive branch 12 and the first conductive branch 11 are respectively located on three different sides of the antenna device 100, thereby dispersing the layout of the antenna body 10 of the antenna device 100, and being beneficial to improving the handheld performance of the antenna device 100. For example, the first conductive branch 11 and the third conductive branch 13 supporting the low frequency band of the LTE signal are located at the first side 1001 and the second side 1002, respectively, the second conductive branch 12 and the third conductive branch 13 supporting the 5G NR signal are located at the fourth side 1004 and the second side 1002, respectively, and the first conductive branch 11 and the second conductive branch 12 supporting the GPS signal are located at the first side 1001 and the fourth side 1004, respectively, so that different conductive branches capable of supporting substantially the same signal are distributed as far as possible, which is advantageous for improving the hand-holding performance of the antenna device 100.

In the embodiment shown in fig. 1, the third conductive branch 13 includes a first radiating portion 131 and a second radiating portion 133, where the first radiating portion 131 extends along a first direction X, and the second radiating portion 133 is connected to one end of the first radiating portion 131 and extends along a second direction Y, and the second direction Y and the first direction X intersect, for example, are substantially perpendicular to each other, so that the third conductive branch L3 is substantially an "L" trace. Therefore, the third conductive branch 13 can adapt to the arrangement space of the antenna body 10 in the frame antenna configuration, and the routing length is longer, so as to support the required low-frequency band. In particular in the present embodiment, the third conductive branches 13 are arranged at the second side 1002 and the third side 1003. The first radiating portion 131 is disposed on the third side 1003 and extends along a first direction X defined by the third side 1003. The second radiating portion 133 is connected to one end of the first radiating portion 131 and extends along a second direction Y defined by the second side 1002. Since the first conductive branches 11 are disposed on the first side 1001 and extend along the second direction Y, the second radiating portions 133 and the first conductive branches 11 are spaced apart from each other and disposed substantially parallel to each other, when the antenna apparatus 100 is applied to an electronic device, the second radiating portions 133 and the first conductive branches 11 are respectively located on opposite sides of the electronic device, and the second radiating portions 133 and the first conductive branches 11 can be respectively responsible for different sub-bands of the LB band, so that the two can be respectively located on opposite sides of the electronic device and spaced apart from each other, so as to improve the handheld performance of the electronic device in the LB band. In this specification, the "direction of extension" of a conductive branch or radiator is understood to mean the direction trend of extension of the radiator or conductive branch, the direction of which is defined by the routing trend of the structure of the conductive branch or radiator itself.

In the present embodiment, the third conductive branch 13 is provided with a third feeding point 135 and a second grounding point 137. The third feeding point 135 is disposed on the second radiating portion 133 and is electrically connected to the feeding module 30. The second grounding point 137 is disposed at the first radiation portion 131, for example, at an end of the first radiation portion 131 near the first conductive branch 11, and is used for grounding.

Referring to fig. 2, in some embodiments, the antenna body 10 may further include a fourth conductive branch 14, where the fourth conductive branch 14 is disposed between the first conductive branch 11 and the third conductive branch 13. The fourth conductive branch is used to support LTE signals. Further, the fourth conductive branch 14 is configured to support a fourth frequency band of the LTE signal, where a center frequency point of the fourth frequency band falls within a frequency band range of an intermediate frequency band or a high frequency band, for example, the fourth frequency band may be an intermediate frequency band or a high frequency band (MHB) of the LTE signal, and the sub-frequency bands may include at least one of the above-mentioned B1, B3, B40, and B41 frequency bands. The fourth frequency band in the embodiments of the present application should not be strictly limited to an intermediate frequency band or a high frequency band, for example, the fourth frequency band may cover the intermediate frequency band or the high frequency band, or a center frequency point of the fourth frequency band is in the intermediate frequency band or the high frequency band, or the fourth frequency band and the intermediate frequency band or the high frequency band have overlapping frequency ranges.

The fourth conductive branch 14 is also used to support a 5GNR signal. Further, the fourth conductive branch 14 is configured to support a third frequency band of the 5G NR signal, where a center frequency point of the third frequency band falls within a frequency band range of the high frequency band. For example, the third frequency band may be a high frequency band of the 5G NR signal, and the sub-band thereof may include at least one of N41 and N78 described above. In the case where the second conductive branch 12 and the third conductive branch 13 support the 5G NR signal, the fourth conductive branch 14 can also support the 5G NR signal, and the conductive branches are multiplexed, so that the structure of the antenna body 10 can be simplified and the cost can be reduced to some extent.

In the embodiment shown in fig. 2, the fourth conductive branch 14 is disposed on the third side 1003 of the antenna device 100 and is disposed in parallel with the first radiating portion 131 of the third conductive branch 13 along the first direction X, and the fourth conductive branch 14 is spaced relatively from an end of the first radiating portion 131 away from the second radiating portion 133.

In the present embodiment, the fourth conductive branch 14 includes a first radiator 141 and a second radiator 143, and the first radiator 131, the first radiator 141, and the second radiator 143 are sequentially disposed on the third side 1003 of the antenna device 100 along the first direction X, wherein. In this embodiment, a gap 140 is disposed between the first radiator 141 and the second radiator 143, the second radiator 143 is electrically connected with the feeding module 30, and resonates under the excitation of the current transmitted by the feeding module 30, and when the second radiator 143 resonates, radiant energy is coupled with the first radiator 141 through the gap 140, so that the first radiator 141 can resonate in a required frequency band. The second radiator 143 may be provided with a fourth feeding point 1431 and a third ground point 1433, and the fourth feeding point 1431 may be disposed on the second radiator 143 near one end of the first radiator 141 and electrically connected to the feeding module 30, and specifically, a distance between the fourth feeding point 1431 and the slot 140 is smaller than a distance between the fourth feeding point 1431 and the first conductive branch 11. The third ground point 1433 is spaced apart from the fourth feeding point 1431, and a distance between the third ground point 1433 and the slot 140 is greater than a distance between the fourth feeding point 1431 and the slot 140, so that the fourth feeding point 1431 is located between the third ground point 1433 and the slot 140, so that an excitation current inputted through the fourth feeding point 1431 can be coupled with the first radiator 141 through the slot 140 to resonate the first radiator 141.

Further, the first radiator 141 is not directly connected to the feeding module 30 as a parasitic branch of the second radiator 143, and the first radiator 141 is provided with a fourth grounding point 1411, and the fourth grounding point 1411 may be disposed at an end of the first radiator 141 away from the second radiator 143, that is, a distance between the fourth grounding point 1411 and the slot 140 or the second radiator 143 is greater than a distance between the fourth grounding point 1411 and the third conductive branch 13. When radiant energy is coupled to the first radiator 141 through the slot 140, an induced current is generated on the first radiator 141 and returns to the ground through the fourth grounding point 1411, and because the fourth grounding point 1411 is provided, the current on the fourth conductive branch 14 can return to the ground through the third grounding point 1433 or the fourth grounding point 1411, so that the current strong point during current backflow can be dispersed, the electric field distribution on the fourth conductive branch 14 is improved, the peak value of the current strong point is reduced, and the electromagnetic wave energy absorption ratio (SAR, specific Absorption Rate, SAR) value of the fourth conductive branch 14 in the MHB frequency band is relatively low. To ensure efficiency of energy coupling, the width of the slit 140 may be greater than or equal to 0.8mm and less than or equal to 2.5mm, for example, the width of the slit 140 may be 0.8mm,0.9mm,1.0mm,1.1mm,1.2mm,1.3mm,1.4mm,1.5mm,1.8mm,2.0mm,2.5mm, and the like.

Referring to fig. 3, in some embodiments, the antenna body 10 may further include a fifth conductive branch 15 and a sixth conductive branch 16, where the fifth conductive branch 15 and the sixth conductive branch 16 are sequentially arranged in parallel on the second side 1002 of the antenna device 100 and extend along the second direction Y. The fifth conductive branch 15 is located between the second conductive branch 12 and the sixth conductive branch 16, and two ends of the fifth conductive branch 15 are respectively spaced from the second conductive branch 12 and the sixth conductive branch 16. The fifth conductive branch 15 is used to support Wireless-Fidelity (Wi-Fi) signals, for example, the fifth conductive branch 15 is used to support 2.4G and 5G bands of Wi-Fi signals. The fifth conductive branch 15 is provided with a fifth feeding point 151 electrically connected to the feeding module 30, but not necessarily with a grounding point. The sixth conductive branch 16 is configured to support Wi-Fi signals, e.g., the sixth conductive branch 16 is configured to support 2.4G and 5G bands of Wi-Fi signals. The sixth conductive branch 16 is provided with a sixth feeding point 161 electrically connected to the feeding module 30, but not necessarily with a ground point. The 2.4G frequency band range of Wi-Fi signals is approximately 2.4 MHz-2.284 MHz, and the 5G frequency band range of Wi-Fi signals is approximately 5.15MHz-5.85MHz.

Referring to fig. 4, in some embodiments, the antenna body 10 may further include a seventh conductive branch 17, where the seventh conductive branch 17 is disposed at a parallel interval with the second conductive branch 12, and is used to support the intermediate frequency and/or the high frequency band of the 5GNR signal and the LTE signal, for example, the seventh conductive branch 17 is used to support at least one of the N41 band or the N78 band, and is used to support at least one of the B1, B3, B41, and B40 band (MHB) of the LTE signal.

In the embodiment shown in fig. 4 in particular, the seventh conductive branch 17 is located on the fourth side 1004 of the antenna device 100 and extends along the first direction X. The seventh conductive branch 17 includes a third radiator 171 and a fourth radiator 173, and the second conductive branch 12, the third radiator 171, and the fourth radiator 173 are sequentially disposed on the fourth side 1004 of the antenna device 100 along the first direction X. In this embodiment, a gap 170 is disposed between the third radiator 171 and the fourth radiator 173, the fourth radiator 173 is electrically connected with the feeding module 30, and resonates under the excitation of the current transmitted by the feeding module 30, and when the fourth radiator 173 resonates, the radiant energy is coupled with the third radiator 171 through the gap 170, so that the third radiator 171 can resonate in a desired frequency band. Further, the fourth radiator 173 may be provided with a seventh feeding point 1731 and a fifth grounding point 1733, and the seventh feeding point 1731 may be disposed on the end of the fourth radiator 173 near the third radiator 171 and electrically connected to the feeding module 30. The fifth ground point 1733 is spaced apart from the seventh feeding point 1731, and a distance between the fifth ground point 1733 and the slot 170 is greater than a distance between the seventh feeding point 1731 and the slot 170, so that the seventh feeding point 1731 is located between the fifth ground point 1733 and the slot 170, so that an excitation current inputted through the seventh feeding point 1731 can be coupled to the third radiator 171 through the slot 170 to resonate the third radiator 171.

Further, the third radiator 171 is not directly connected to the feeding module 30 as a parasitic branch of the fourth radiator 173, the third radiator 171 is provided with a sixth grounding point 1711, when radiation energy is coupled to the third radiator 171 through the slot 170, an induced current is generated on the third radiator 171 and the induced current is grounded back through the sixth grounding point 1711, and the arrangement of the sixth grounding point 1711 and the fifth grounding point 1733 can shunt the ground return current, so as to ensure that the SAR value of the conductive branch 17 in the MHB frequency band is relatively low. To ensure efficiency of energy coupling, the width of the gap 170 may be greater than or equal to 0.8mm and less than or equal to 2.5mm, for example, the width of the gap 140 may be 0.8mm,0.9mm,1.0mm,1.1mm,1.2mm,1.3mm,1.4mm,1.5mm,1.8mm,2.0mm,2.5mm, and the like.

In this embodiment, the antenna body 10 may further include an eighth conductive branch 18, and the eighth conductive branch 18 may be disposed at an end of the seventh conductive branch 17 away from the second conductive branch 12, for example, the eighth conductive branch 18 is located on the first side 1001 of the antenna device 100 and extends along the second direction Y. The eighth conductive branch 18 is used to support a low frequency band of the 5G NR signal and the LTE signal, for example, the eighth conductive branch 18 is used to support at least one of the N41 band or the N78 band, and is used to support at least one of the B5, B8, B20, and B28 bands (LB) of the LTE signal. The eighth conductive branch 18 may be provided with an eighth feeding point 181 and a seventh grounding point 183, where the eighth feeding point 181 is disposed at an end of the eighth conductive branch 18 away from the seventh conductive branch 17 and is electrically connected to the feeding module 30. The seventh ground point 183 is spaced apart from the eighth feed point 181 and is located between the eighth feed point 181 and the seventh conductive branch 17. Further, in the present embodiment, the eighth conductive branch 18 is further provided with an eighth grounding point 185, the eighth grounding point 185 is spaced from the seventh grounding point 183, a distance between the eighth grounding point 185 and the seventh grounding point 183 is smaller than a distance between the eighth grounding point 185 and the eighth feeding point 181, and the seventh grounding point 183 is located between the eighth grounding point 185 and the eighth feeding point 181. When the excitation current input through the eighth feeding point 181 flows on the eighth conductive branch 18 and is shunted to ground by the eighth grounding point 185 and the seventh grounding point 183, the current intensity point when the current flows back can be dispersed, the electric field distribution on the eighth conductive branch 18 is improved, and the peak value of the current intensity point is reduced, so that the SAR value of the eighth conductive branch 18 is ensured to be relatively low. Further, the distance between the eighth ground point 185 and the seventh ground point 183 is greater than the distance between the seventh ground point 183 and the eighth feed point 181, such that the eighth ground point 185 is relatively farther from the seventh ground point 183, which has a more pronounced weakening effect on the current boost point.

In this embodiment, the antenna body 10 may further include a ninth conductive branch 19, and the ninth conductive branch 19 may be disposed at an end of the eighth conductive branch 18 away from the seventh conductive branch 17, for example, the ninth conductive branch 19 is located on the first side 1001 of the antenna device 100 and extends along the second direction Y. The ninth conductive branch 19 is for supporting a 5G NR signal, for example, the ninth conductive branch 19 is for supporting at least one of an N41 band or an N78 band. The ninth conductive branch 19 may be provided with a ninth feeding point 191, and the ninth feeding point 191 is electrically connected to the feed module 30.

In this embodiment, the antenna body 10 may further include a tenth conductive branch 199, and the tenth conductive branch 199 may be disposed between the fifth conductive branch 15 and the sixth conductive branch 16, for example, the tenth conductive branch 199 is located on the second side 1002 of the antenna device 100 and extends along the second direction Y. The fifth conductive branch 15, the tenth conductive branch 199, and the sixth conductive branch 16 are sequentially arranged along the second direction Y. The tenth conductive branch 199 is for supporting an intermediate frequency band and/or a high frequency band of the 5G NR signal and the LTE signal, for example, the tenth conductive branch 199 is for supporting at least one of an N41 band or an N78 band, and for supporting at least one of B1, B2, B40, B41 band (MHB) of the LTE signal. Further, the tenth conductive branch 199 is also configured to support the 2.4G band of Wi-Fi signals. The tenth conductive branch 199 is provided with a tenth feeding point 1991 electrically connected to the feeding module 30, but a grounding point is not necessarily provided.

In some embodiments of the present application, the antenna body 10 may be an LDS antenna formed on an antenna bracket by a laser technology, for example, the antenna bracket may be first disposed on a frame of an electronic device, and then the LDS antenna is formed on the antenna bracket by processing. The LDS antenna is a metal antenna pattern which is directly plated on the antenna bracket through a laser technology. In other embodiments, the antenna body 10 may also be a flexible circuit board (flexible printed circuit, FPC) antenna disposed on a bezel of an electronic device. The FPC antenna refers to a metal antenna pattern formed on the FPC, and the FPC antenna may be fixed on a frame of the electronic device by means of adhesion, embedding, soldering, or the like. In other embodiments, the antenna body 10 may also be a metal patch antenna attached to the bezel of the electronic device, or the antenna body/conductive branches may be formed directly from the metal bezel of the electronic device. As an example, when the metal frame of the electronic device is directly used as the antenna body/conductive branch, a gap or a notch may be formed on the metal frame to divide the metal frame into antenna bodies/conductive branches spaced from each other, for example, the metal frame may be approximately rectangular frame, N gaps or notches are formed on the metal frame, the rectangular frame may be divided into n+1 antenna bodies/conductive branches sequentially spaced from each other, and then the length of each antenna body/conductive branch is limited according to a specific frequency band, and the antenna bodies/conductive branches are connected to corresponding feeds, so that the radiating function of the antenna can be realized by using the metal frame. Therefore, in the present example, directly utilizing the metal bezel of the electronic device directly as the antenna body/conductive stub enables the cost of the antenna apparatus 100 to be relatively low.

In order to enable the antenna body 10 to support a plurality of communication frequency bands in the plurality of communication modes, the feed module 30 may include a plurality of feeds, and the plurality of feeds may be respectively connected to a plurality of conductive branches of the antenna body 10 in a one-to-one correspondence manner, so as to excite the corresponding conductive branches to radiate signals in a required frequency band. In this embodiment, the multiple feeds of the feeding module 30 may include a first feed, a second feed, a third feed, a fourth feed, a fifth feed, a sixth feed, a seventh feed, an eighth feed, a ninth feed, and a tenth feed (all not shown in the figure). The first feed is electrically connected to the first feeding point 111, the second feed is electrically connected to the second feeding point 121, the third feed is electrically connected to the third feeding point 135, the fourth feed is electrically connected to the fourth feeding point 1431, the fifth feed is electrically connected to the fifth feeding point 151, the sixth feed is electrically connected to the sixth feeding point 161, the seventh feed is electrically connected to the seventh feeding point 1731, the eighth feed is electrically connected to the eighth feeding point 181, the ninth feed is electrically connected to the ninth feeding point 191, and the tenth feed is electrically connected to the tenth feeding point 1991.

In the multiple feeds, different impedance elements and corresponding switch elements can be configured, and the switch elements are used for selecting different impedance elements to be connected into corresponding conductive branches, so that loop impedance of the conductive branches can be changed, and resonant frequencies of the corresponding conductive branches can be adjusted, and signals with different frequencies can be transmitted and received. Furthermore, the feed sources can be matched and tuned with corresponding matching circuits or impedance elements, so that the working frequency band of the corresponding conductive branch is widened, or the radiation performance of the conductive branch is guaranteed to be good.

Taking fig. 5 as an example, the first feed source 31 corresponding to the first conductive branch 11 is tuned in cooperation with the first matching circuit 33. Specifically, the antenna device 100 of the present embodiment further includes a first matching circuit 33, and the first ground point 113 of the first conductive branch 11 is grounded through the first matching circuit 33. The first matching circuit 33 includes a first switch module 332 and at least two first band selection branches 334, the at least two first band selection branches 334 are connected in parallel, and the first switch module 332 is connected to the at least two first band selection branches 334. The first matching circuit 33 is configured to selectively switch at least one of the at least two first frequency band selection branches 334 into the loop of the first conductive branch 11 through the first switching module 332, so that the first conductive branch 11 can radiate signals of a desired frequency band.

In this embodiment, the at least two first frequency band selection branches 334 include a first branch 3341 and a second branch 3343, one end of the first branch 3341 is grounded through the first switch module 332, the other end is connected to the first conductive branch 11, the second branch 3343 is parallel to the first branch 3341, and the first branch 3341 and the second branch 3343 are controlled by the first switch module 332 respectively. The first branch 3341 and the second branch 3343 are provided with impedance elements with different impedance values so as to change the impedance of a loop of the first conductive branch 11 when the loop is connected, thereby adjusting the first conductive branch 11 to be suitable for impedance matching so as to radiate signals of a required frequency band. In some embodiments, the first branch 3341 includes a first inductance L1 and the second branch 3343 includes a first capacitance C1. The first inductor L1 is connected in parallel with the first capacitor C1, both of which are controlled by the first switch module 332. The first switch module 332 selectively connects the first inductor L1 and/or the first capacitor C1 to the loop of the first conductive branch 11. The first switch module 332 may include a first switch K1 and a second switch K2, the first branch 3341 is grounded through the first switch K1, and the second branch 3343 is grounded through the second switch K2. In this embodiment, each switch may be a single pole single throw switch, an electronic switching tube, or the like. The electronic switch tube can be a MOS tube, a transistor and the like. In the embodiment of the present application, specific components of the first switch module 332 are not further limited, and the on-off control conditions of the plurality of first frequency band selection branches 334 and the branches are satisfied.

Further, in this example, the antenna apparatus 100 may further include a tuning inductor L0, where one end of the tuning inductor L0 is grounded, and the other end is connected to the first feeding point 111, that is, to a common point of the first feed 31 and the first feeding point 111. The tuning inductor L0 is used to tune the first conductive branch 11 in cooperation with the first band selection branch 334. For example, when the first switch K1 is closed and the second switch K2 is opened, the first inductor L1 is connected to the loop of the first conductive branch 11, so that the first conductive branch 11 radiates the GPS signal, and when the second switch K2 is closed and the first switch K1 is opened, the first capacitor C1 is connected to the loop of the first conductive branch 11, so that the first conductive branch 11 radiates the signal in the B20 frequency band. In this embodiment of the present application, the specific value of the impedance element may be set according to the frequency band to be tuned, which is not limited in this specification. Further, in this example, with the above-described first matching circuit 33 and tuning inductor L0 in cooperation, impedance matching can be performed with fewer circuit elements, and the cost is relatively low, at this time, the first feeding point 111 may be located at an end of the first conductive branch 11 near the fourth conductive branch 14, that is, the distance between the first feeding point 111 and the fourth conductive branch 14 is smaller than the distance between the first ground point 113 and the fourth conductive branch 14.

Taking fig. 6 as an example, as another example, the first feed 31 corresponding to the first conductive branch 11 may be tuned in combination with another matching circuit, such as the second matching circuit 35 and the third matching circuit 37. Specifically, the antenna device 100 of the present embodiment further includes a second matching circuit 35 and a third matching circuit 37, and the first feeding point 111 of the first conductive branch 11 is grounded through the second matching circuit 35 and connected to the first feeding source 31 through the third matching circuit 37.

The second matching circuit 35 includes a second switch module 352 and at least two second frequency band selection branches 354, the at least two second frequency band selection branches 354 are connected in parallel, and the second switch module 352 is connected to the at least two second frequency band selection branches 354. The second matching circuit 35 is configured to selectively switch at least one of the at least two second frequency band selection branches 354 into the loop of the first conductive branch 11 through the second switching module 352 to enable the first conductive branch 11 to radiate signals of a desired frequency band.

In this embodiment, the at least two second frequency band selection branches 354 include a third branch 3541 and a fourth branch 3543, one end of the third branch 3541 is grounded through the second switch module 352, the other end of the third branch 3541 is connected to the first conductive branch 11, and the third branch 3541 and the fourth branch 3543 are connected in parallel. The third branch 3541 and the fourth branch 3543 are provided with impedance elements with different impedance values, so that when the loop of the first conductive branch 11 is connected, the impedance of the loop is changed, and the first conductive branch 11 is adjusted to be suitable for impedance matching, so that signals with required frequency bands can be radiated. In some embodiments, the third leg 3541 includes a second inductance L2 and the fourth leg 3543 includes a second capacitance C2. The second inductor L2 is connected in parallel with the second capacitor C2, both of which are controlled by the second switch module 352. The second switch module 352 selectively connects the second inductor L2 and/or the second capacitor C2 to the loop of the first conductive branch 11. The second switch module 352 may include a third switch K3 and a fourth switch K4, the third branch 3541 is grounded through the third switch K3, and the fourth branch 3543 is grounded through the fourth switch K4. In this embodiment, each switch may be a single pole single throw switch, an electronic switching tube, or the like. The electronic switch tube can be a MOS tube, a transistor and the like. In the embodiment of the present application, specific components of the second switch module 352 are not further limited, and the specific components meet the on-off control conditions of the plurality of second frequency band selection branches 354 and the branches where the second frequency band selection branches are located.

The third matching circuit 37 has one end connected to the first feed 31 and the other end connected to the first feed point 111. The third matching circuit 37 includes a third switch module 372 and at least two third frequency band selection branches 374, the at least two third frequency band selection branches 374 are connected in parallel, and the third switch module 372 is connected to the at least two third frequency band selection branches 374. The third matching circuit 37 is configured to selectively connect at least one of the at least two third frequency band selection branches 374 into the loop of the first conductive branch 11 through the third switching module 372, so that the first conductive branch 11 can radiate signals of a desired frequency band.

In this embodiment, the at least two third frequency band selection branches 374 include a fifth branch 3741 and a sixth branch 3743, one end of the fifth branch 3741 is connected to the first feed source 31 through the third switch module 372, the other end is connected to the first conductive branch 11, and the fifth branch 3741 and the sixth branch 3743 are connected in parallel. The fifth and sixth branches 3741, 3743 are provided with impedance elements having different impedance values to change the impedance of the loop of the first conductive branch 11 when the loop is connected, so as to adjust the first conductive branch 11 to a suitable impedance match for radiating signals of a desired frequency band. In some embodiments, the fifth leg 3741 includes a third inductance L3 and the sixth leg 3743 includes a third capacitance C3. The third inductor L3 is connected in parallel with the third capacitor C3, both of which are controlled by the third switch module 372. The third switch module 372 selectively connects the third inductor L3 and/or the third capacitor C3 to the loop of the first conductive branch 11. The third switch module 372 may include a fifth switch K5 and a sixth switch K6, the fifth branch 3741 is connected to the first feed source 31 through the fifth switch K5, and the sixth branch 3743 is connected to the first feed source 31 through the sixth switch K6. In this embodiment, each switch may be a single pole single throw switch, an electronic switching tube, or the like. The electronic switch tube can be a MOS tube, a transistor and the like. In the embodiment of the present application, specific components of the third switch module 372 are not further limited, and the specific components meet the on-off control conditions of the multiple third frequency band selection branches 374 and the branches where the third frequency band selection branches are located.

In this example, when the fourth switch K4 and the fifth switch K5 are closed and the third switch K3 and the sixth switch K6 are opened, the second capacitor C2 and the third inductor L3 are connected to the loop of the first conductive branch 11, so that the first conductive branch 11 radiates the GPS signal, and when the third switch K3 and the sixth switch K6 are closed and the fourth switch K4 and the fifth switch K5 are opened, the second inductor L2 and the third capacitor C3 are connected to the loop of the first conductive branch 11, so that the first conductive branch 11 radiates the signal in the B20 frequency band. Further, in the present example, with the above-described second matching circuit 35 and third matching circuit 37, the impedance matching can be adjusted more accurately, at which time the first ground point 113 may be located at an end of the first conductive branch 11 near the fourth conductive branch 14, that is, a distance between the first feeding point 111 and the fourth conductive branch 14 is larger than a distance between the first ground point 113 and the fourth conductive branch 14, so that an inductance amount introduced from the first ground point 113 is small to avoid affecting tuning performance. In this embodiment of the present application, the specific value of the impedance element may be set according to the frequency band to be tuned, which is not limited in this specification.

In this example, as a result of performing simulation test on the first conductive branch 11, please refer to fig. 7, 8 and 9, fig. 7 shows an input reflection coefficient curve (S11 curve) and a radiation efficiency curve of the first conductive branch 11 when radiating a signal (l+l frequency band, for example, B20 frequency band+b28 frequency band) of the first frequency band of LTE, and as can be seen from the simulation diagram of fig. 7, the simulation peak efficiency of the first conductive branch 11 is-4.5 dB when supporting the l+l frequency band. Fig. 8 shows an input reflection coefficient curve (S11 curve) and a radiation efficiency curve of the first conductive branch 11 when the signal of the GPS L5 frequency band is radiated, and it can be seen from the simulation diagram of fig. 8 that the simulation peak efficiency of the first conductive branch 11 when the GPS L5 frequency band is supported is-3.9 dB. Fig. 9 shows the radiation pattern simulation result of the first conductive branch 11 when radiating the signal of the GPS L5 band, with the upper hemisphere ratio up to 74%.

Referring to fig. 10, fig. 10 is a schematic diagram illustrating a distribution of antenna bodies (i.e., conductive branches) supporting Wi-Fi signals and supporting GPS signals in the antenna device 100 according to the embodiment of the present application. In this embodiment, three antenna bodies supporting Wi-Fi signals, that is, the fifth conductive branch 15, the sixth conductive branch 16, and the tenth conductive branch 199 are distributed on the same side of the antenna device 100, where the fifth conductive branch 15 and the sixth conductive branch 16 are respectively used as different channels of Wi-Fi signals and are used for supporting 2.4G frequency bands and 5G frequency bands of Wi-Fi signals, so as to form a multiple-in multiple-out (MIMO) layout of Wi-Fi antennas. The tenth conductive branch 199 is configured to support the 2.4G frequency band of Wi-Fi signals, so that the antenna apparatus 100 has more Wi-Fi antenna configurations, and it can be ensured that the Wi-Fi signals have higher radiation efficiency. As an example, the fifth conductive branch 15 may be used as a main Wi-Fi antenna scheme, and the sixth conductive branch 16 may be used as another Wi-Fi antenna of the Wi-Fi-ASDIV or another channel of the MIMO layout of the Wi-Fi antenna, which not only increases the signal strength of the Wi-Fi signal, but also avoids the phenomenon that the quality of the Wi-Fi signal is reduced due to the lateral screen of the electronic device held by the user.

In this embodiment, two antenna bodies supporting GPS signals, namely, the first conductive branch 11 and the second conductive branch 12 are respectively located at opposite ends of the antenna device 100, so that the distance between the first conductive branch 11 and the second conductive branch 12 is as far as possible, which can ensure better isolation between the two and improve the hand-holding performance of the GPS signals of the antenna device 100. As an example, the first conductive branch 11 and the second conductive branch 12 are respectively located at two opposite corners of the rectangular frame-shaped antenna device 100, so that the antenna device 100 has a very high upper hemispherical duty ratio when radiating GPS signals (refer to fig. 9).

Referring to fig. 11, fig. 11 is a schematic diagram illustrating a distribution of antenna bodies (i.e., conductive branches) supporting LTE signals in the antenna device 100 according to an embodiment of the present disclosure. In this embodiment, six antenna bodies supporting LTE signals are distributed on four sides of the antenna apparatus 100, so that the hand-holding performance of LTE signal transceiving is better. Specifically, three antenna bodies for supporting the low frequency band (LB/l+l) of the LTE signal, that is, the first conductive branch 11, the third conductive branch 13, and the eighth conductive branch 18 are substantially distributed on different sides (two ends of the first side 1004 and the second side 1002/the third side 1003) of the antenna device 100, and the three are located far apart, and by intelligently switching the antenna bodies/conductive branches with higher radiation efficiency, it is possible to prevent the situation that the antenna bodies/conductive branches are held in different situations, and to ensure better hand-holding performance of the low frequency band of the LTE signal, for example, an antenna body/conductive branch with relatively stronger signal among the plurality of antenna bodies/conductive branches supporting the low frequency band of the LTE signal is set as a main set antenna, and an antenna body/conductive branch with relatively weaker signal is set as a diversity antenna. Further, the first conductive branch 11 supports the low frequency band of the LTE signal, and also can support the GPS signal, so as to realize multiplexing of the antenna body/conductive branch, reduce the volume or routing area of the conductive branch of the antenna device 100 to a certain extent, and facilitate routing layout of the antenna body 10.

In this embodiment, three antenna bodies for supporting the middle-high frequency band (MHB) of the LTE signal, that is, the fourth conductive branch 14, the seventh conductive branch 17 and the tenth conductive branch 199 are respectively distributed on different sides (respectively located on the third side 1003, the fourth side 1004 and the second side 1002) of the antenna device 100, and the three positions are far apart and located on different sides, so that the handheld performance of the middle-high frequency band of the LTE signal is better, and the middle-high frequency band of the tenth conductive branch 199 supporting the LTE signal can also support the Wi-Fi signal, so that the multiplexing of the antenna bodies/conductive branches is realized, the volume or the routing area of the conductive branch of the antenna device 100 can be reduced to a certain extent, and the routing layout of the antenna body 10 is facilitated.

Referring to fig. 12, fig. 12 is a schematic diagram illustrating a distribution of antenna bodies (i.e., conductive branches) supporting 5G NR signals in the antenna apparatus 100 according to an embodiment of the present disclosure. In this embodiment, the eight antenna bodies supporting the 5G NR signal are distributed on four sides of the antenna apparatus 100, so that the hand-holding performance of the 5G NR signal transmitting and receiving is better. Specifically, the four antenna bodies supporting the N78 band, that is, the second conductive branch 12, the eighth conductive branch 18, the ninth conductive branch 19, and the tenth conductive branch 199 are substantially distributed at the upper half of the antenna device 100 in the figure and are spaced apart from each other, specifically, the second conductive branch 12 is located at the fourth side 1004, the eighth conductive branch 18, and the ninth conductive branch 19 is located at the first side 1001, and the tenth conductive branch 199 is located at the second side 1002, which are located as far apart as possible, and by intelligently switching the antenna bodies/conductive branches with high radiation efficiency, it is possible to prevent the situation that the antenna bodies/conductive branches are gripped under different conditions, and to ensure that the isolation of the antenna bodies of the N78 band is high and the hand holding performance is good, for example, the antenna bodies/conductive branches supporting relatively strong signals in the N78 band are set as a main set antenna and the antenna bodies/conductive branches with relatively weak signals therein are set as antennas. Further, the second conductive branch 12 can support the N78 frequency band and also can support the GPS signal, the eighth conductive branch 18 can support the N78 frequency band and also can support the LB frequency band of the TLE signal, the tenth conductive branch 199 can support the N78 frequency band and also can support the Wi-Fi signal, multiplexing of multiple antenna bodies/conductive branches is achieved, the volume or the routing area of the conductive branch of the antenna device 100 can be reduced to a certain extent, and the routing layout of the antenna body 10 is facilitated.

In this embodiment, four antenna bodies for supporting the N41 frequency band, that is, the third conductive branch 13, the fourth conductive branch 14, the seventh conductive branch 17 and the ninth conductive branch 19 are distributed on four sides of the antenna device 100, specifically, the third conductive branch 13 is located on the third side 1003/the second side 1002, the fourth conductive branch 14 is located on the third side 1003, the seventh conductive branch 17 is located on the fourth side 1004, the ninth conductive branch 19 is located on the first side 1001, the four positions are far apart as far as possible, so that the handheld performance of the N41 frequency band can be ensured to be better, the third conductive branch 13 and the fourth conductive branch 14 can support the LB frequency band of the TLE signal, the seventh conductive branch 17 can support the N41 frequency band can also support the MHB frequency band of the TLE signal, the ninth conductive branch 19 can also support the N41 frequency band of the TLE signal, multiplexing of the multiple antenna bodies/the conductive branches can be realized, the volume of the conductive branch of the antenna device 100 can be reduced to a certain extent, or the layout area of the antenna body 10 can be facilitated.

In summary, in the antenna device 100 provided by the embodiment of the present application, the layout of dual GPS antennas and dual Wi-Fi antennas is provided, and a plurality of LTE antennas and a plurality of 5G antennas respectively present a surrounding layout in the antenna device 100, so that it is fully considered that the antenna body can not be held under various use scenarios of the whole machine and the user, and for north american operators, the first conductive branch 11 is also compatible with a GPS L5 frequency band supporting a high upper hemispherical duty ratio, and under the addition of dual GPS antennas, user experience is considered to be very good; in western european version, the first conductive branch 11 may be used as the third low-frequency antenna of l+l (the other two may be the third conductive branch 13 and the eighth conductive branch 18, respectively), and the placement of the first conductive branch 11 for supporting the l+l band below the side (the lower right corner in fig. 12) contributes to the layout of the other antennas in the upper half of the electronic device. The head-hand degradation of the LB frequency band of the third conductive branch 13 is small, and the SAR value of the MHB frequency band of the fourth conductive branch 14 is also low.

Referring to fig. 13, based on the antenna apparatus 100 described above, the embodiment of the present application further provides an electronic device 400, where the electronic device 400 may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (Mobile Internet Device, MID), a wearable device (e.g. a smart watch, a smart bracelet, a pedometer, etc.), or other communication devices with antenna apparatuses. The electronic device 400 of the present embodiment will be described by taking a mobile phone as an example.

The electronic apparatus 400 includes a housing 1001, a display screen 1003 and an antenna device 1004 provided on the housing 1001. In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description of the present application, but do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In this embodiment, the display screen 1003 generally includes a display panel, and may include a circuit for performing a touch operation in response to the display panel, or the like. The display panel may be a liquid crystal display panel (Liquid Crystal Display, LCD), which in some embodiments may be a touch screen at the same time. In the description of the present specification, reference to the term "one embodiment," "some embodiments," or "other embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

In particular, in the embodiment of the present application, the housing 1001 includes a rear housing 1010 and a middle frame 1011, and the rear housing 1010 and the display screen 1003 are respectively disposed on opposite sides of the middle frame 1011.

Referring to fig. 14, the middle frame 1011 may be structurally divided into a supporting portion 1012 and a frame 1013 surrounding the supporting portion 1012. It should be understood that the "carrier" and "frame" are merely named for convenience of description, and the structure filling diagonal lines in the drawings are merely identified for distinction and do not represent the actual structures of the two, and may not have obvious boundaries therebetween, or may be assembled by two or more components, and the naming of the "carrier" and "frame" should not limit the structure of the central frame 1011. The supporting portion 1012 is used for supporting a part of the structure of the display screen 1003, and may also be used for supporting or mounting electronic components of the electronic device 200, such as the motherboard 1005, the battery 1006, the sensor module 1007, etc., and the bezel 1013 is connected to the periphery of the supporting portion 1012. Further, the frame 1013 is disposed around the outer periphery of the carrier 1012 and protrudes relative to the surface of the carrier 1012, so that the two together form a space for accommodating the electronic component. In the present embodiment, the display screen 1013 is covered on the bezel 1013, and the bezel 1013, the rear case 1010, and the display screen 1003 form the exterior surface of the electronic device 400.

In this embodiment, the electronic device 400 may be a foldable electronic device, and may further include a hinge mechanism 1020, where the hinge mechanism 1020 is disposed at a substantially middle position inside the electronic device 400, and is used to implement folding of the electronic device 400, such as inward folding of a screen or outward folding of a screen. As an example, the electronic device 400 may include a first electronic component 1021 and a second electronic component 1023, the first electronic component 1021 and the second electronic component 1023 being respectively connected to opposite sides of the spindle mechanism 1020; accordingly, the housing 1001 of the electronic device 400 may be divided into two housing parts, which are respectively connected to opposite sides of the rotating shaft mechanism 1020 and can be relatively rotated based on the rotating shaft mechanism 1020 to realize folding or unfolding; accordingly, the rear case 1010 and the middle frame 1011 included in the housing 1001 may be divided into two parts, wherein the middle frame 1011 of one part is distributed on the first electronic component 1021, and the middle frame 1011 of the other part is distributed on the second electronic component 1021, and when the electronic device 400 is in the flattened state, the middle frame 1011 is substantially rectangular. Specifically, for example, the case 1001 may include a first case portion arranged to the first electronic component 1021 and a second case portion arranged to the second electronic component 1023, with the rotation shaft mechanism 1020 connected therebetween; accordingly, the rear shell 1010 may include a first rear shell portion and a second rear shell portion, and the center 1011 may include a first center frame portion and a second center frame portion, the first rear shell portion and the first center frame portion together forming at least part of the first shell portion, and the second center frame portion and the second rear shell portion together forming at least part of the second shell portion. In this example, the display screen 1003 may be a flexible display panel, such as an OLED screen.

In this embodiment, the antenna device 1004 may be any one of the antenna devices 100 provided in the above embodiment, or may be provided with any one or a combination of multiple features of the above antenna device 100, and the related features may be referred to the foregoing embodiment, which is not described in detail. The antenna device 1004 is integrated in the case 1001, and for example, the antenna device 1004 may be provided in the center 1011 or in the rear case 1010. The antenna device 1004 of the present embodiment may include an antenna body 10 and a feeding module 30 connected to the antenna body 10, and the antenna body 10 may include a first conductive branch 11, a second conductive branch 12, a third conductive branch 13, a fourth conductive branch 14, a fifth conductive branch 15, a sixth conductive branch 16, a seventh conductive branch 17, an eighth conductive branch 18, a ninth conductive branch 19, and a tenth conductive branch 199, which are substantially the same as the aforementioned antenna device 100. The antenna body 10 is disposed on the middle frame 1011, and the grounding point of the conductive branch may be connected to at least one of the main board 1005, the carrier 1012, and the rear case 1010.

Further, in the embodiment shown in fig. 14, the frame 1013 may be made of metal, for example, the material of the frame 1013 may include an aluminum alloy, a magnesium alloy, and the like. The antenna device 1004 is integrated with the bezel 1013. In this embodiment, the frame 1013 is provided with a plurality of slots 1014, the plurality of slots 1014 divide the frame 1013 into a plurality of portions, and the antenna device 1004 is integrated in at least a portion of the frame 1013, wherein one or more of the plurality of slots 1014 may be used as a slot between the conductive branches of the antenna body 10. In this way, the metal bezel 1013 is used as a part of the antenna body 10 of the antenna device 1004, which is beneficial to saving space in the electronic device 400, and also provides a larger clearance for the antenna device 1004, which is beneficial to ensuring higher radiation efficiency.

In the present embodiment, a gap is provided between the frame 1013 and the carrier 1013 as a portion of the antenna body 10, and the gap communicates with the gap 1014, so as to avoid the carrier 1012 from affecting the resonant frequency of the antenna body 10. Further, a non-shielding body (not shown) made of a non-metal (e.g., resin, etc.) having a characteristic of passing electromagnetic wave signals may be provided in the slit 1014 to allow the antenna device 1004 to perform signal transmission. The outer surface of the non-shield is flush with the outer surface of the bezel 1013 to ensure the integrity of the appearance of the electronic device 400.

In other embodiments, the bezel 1013 may be made of non-metal, and the antenna device 100 may be integrated with the bezel 1013. For example, the frame 1013 may be made of a plastic, a resin, or the like, and the antenna body 10 of the antenna device 100 may be integrated with the frame 1013 by insert molding (e.g., the antenna body 10 is integrally embedded in the frame 1013), or may be integrated with the frame 1013 by attaching (e.g., the antenna body 10 is attached to the surface of the frame 1013).

In some embodiments, the bezel 1013 may be a rounded rectangular bezel, wherein the bezel 1013 may include a first bezel and a third bezel disposed opposite to each other, and a second bezel and a fourth bezel disposed opposite to each other, wherein the second bezel is connected with the first bezel and the third bezel, respectively. The first frame and the second frame may be understood as side frames of the electronic device 400, the fourth frame may be understood as top frame of the electronic device 400, and the third frame may be understood as bottom frame of the electronic device 400. The antenna device 1004 may be partially or entirely formed by a portion of the bezel 1013. Illustratively, the antenna body 10 of the antenna device 1013 may be partially or integrally formed with at least one of the top bezel, the bottom bezel, and the side bezel of the electronic device 400. In particular, in this example, the first bezel may correspond to the first side 1001 described above, the second bezel may correspond to the second side 1002 described above, the third bezel may correspond to the third side 1003 described above, and the fourth bezel may correspond to the fourth side 1004 described above. In the example of the folding electronic device, the side frame (i.e., the first frame and the second frame) of the electronic device 400 may be respectively divided into two parts, and the two parts of each side frame are respectively rotatably connected to each other based on the rotation axis mechanism 1020, for example, one part of the first frame is distributed on the first electronic component 1021, and the other part is distributed on the second electronic component 1021, that is, the first side 1001 described above may cover the same side (e.g., the left side in the figure) of the first electronic component 1021 and the second electronic component 1021; one part of the second frame is distributed on the first electronic component 1021, and the other part is distributed on the second electronic component 1021, that is, the second side 1002 described above may cover the same side (right side in the figure) of the first electronic component 1021 and the second electronic component 1021. At this time, the fourth frame is located on the first electronic component 1021, the third frame is located on the second electronic component 1023, and as can be seen from the above description, the first conductive branch 11 is disposed on the first side 1001 of the second electronic component 1023, and the second conductive branch 12 is disposed on the fourth side of the first electronic component 1021.

In some embodiments, the electronic device 400 may further include a signal detector 401 and a radio frequency processing circuit 403, where the signal detector 401 is configured to detect signal intensities of the plurality of antenna bodies/conductive branches responsible for the same frequency band, and the radio frequency processing circuit 403 is connected to the signal detector 401 and is configured to perform switching control on each pair of antenna bodies capable of switching between a main set and diversity according to the signal intensities detected by the signal detector 401. Specifically, for example, the radio frequency processing circuit 403 determines, according to the signal intensity detected by the signal detector 401, that the difference value of the signal intensities of the antenna bodies/conductive branches responsible for the same frequency band exceeds a preset threshold, and when the antenna body/conductive branch with lower current signal intensity is the main set, controls to switch the antenna body/conductive branch with lower current signal intensity into diversity, and controls to switch the antenna body/conductive branch with higher current signal intensity into the main set. Wherein, the preset threshold value can be 6db.

In the antenna device and the electronic device provided by the embodiments of the present application, the antenna device supports the GPS signal simultaneously by using the first conductive branch and the second conductive branch, and when one of the first conductive branch and the second conductive branch is shielded (for example, when the user holds the electronic device to cause shielding), the other one can be responsible for the main radiation effect of the GPS signal, so that the radiation efficiency of the GPS signal supported by the antenna device is not greatly reduced due to shielding, and the holding performance of the antenna device is better. Further, the first conductive branch can be used for supporting the GPS signal and also can support the LTE signal, so that the LTE antenna and the GPS antenna do not need to be distributed on the two conductive branches, but the same conductive branch is multiplexed, the volume or the wiring area of the conductive branch of the antenna device can be reduced to a certain extent, and the wiring layout of the antenna device is facilitated.

It should be noted that, in the present specification, when one component is considered to be "disposed on" another component, it may be connected to or directly disposed on the other component, or there may be an intervening component (i.e., an indirect connection between the two); when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, i.e., an indirect connection between the two elements.

In this specification, particular features or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined without contradiction. Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna device, comprising:

a feed module;

the first conductive branch is provided with a first feed point, and the first feed point is electrically connected with the feed module; the feed module is to input an excitation current via the first feed point, enabling the first conductive branch to be used to support global positioning system (Global Positioning System, GPS) signals and long term evolution (Long Term Evolution, LTE signals); and

the second conductive branch is arranged at intervals with the first conductive branch; the second conductive branch is provided with a second feeding point, and the second feeding point is electrically connected with the feeding module; the feed module is configured to input an excitation current via the second feed point, enabling the second conductive branch to be used to support GPS signals.

2. The antenna device of claim 1, wherein the first conductive branch is for supporting an L5 band of GPS signals and the second conductive branch is for supporting an L1 band of GPS signals.

3. The antenna device of claim 2, wherein the second conductive branch is further configured to support a New Radio (NR) signal of a fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G).

4. The antenna device of claim 1, wherein the antenna device has opposite first and second ends, the second and first conductive branches being located at respective ends of the antenna device.

5. The antenna device of claim 4, wherein the antenna device has opposing first and second sides, and opposing third and fourth sides; the third side and the fourth side are respectively positioned between the first side and the second side, the third side is positioned at the first end, and the fourth side is positioned at the second end; the first conductive branch is arranged at one end of the first side far away from the fourth side, and the second conductive branch is arranged at one end of the fourth side far away from the first side.

6. The antenna device of claim 1, further comprising a third conductive stub disposed in spaced relation to the first conductive stub, the third conductive stub for supporting LTE signals as well as 5G NR signals.

7. The antenna device according to claim 6, wherein,

the first conductive branch is used for supporting a first frequency band of an LTE signal; the center frequency point of the first frequency band falls into a frequency band range of 0.791 GHz-0.862 GHz or/and a frequency band range of 0.703 GHz-0.803 GHz;

The third conductive branch is used for supporting a second frequency band of the LTE signal, and a center frequency point of the second frequency band is in a frequency band range of 0.703 GHz-0.960 GHz;

the third conductive branch is used for supporting a third frequency band of the 5GNR signal, and a center frequency point of the third frequency band is in a frequency band range of the high-frequency band.

8. The antenna device of claim 5, further comprising a fourth conductive stub disposed between the first conductive stub and the third conductive stub, the fourth conductive stub for supporting LTE signals and 5G NR signals.

9. The antenna apparatus of claim 8, wherein the fourth conductive branch is configured to support a fourth frequency band of the LTE signal, a center frequency point of the fourth frequency band falling within a frequency band range of an intermediate frequency band or a high frequency band;

the fourth conductive branch is further used for supporting a third frequency band of the 5G NR signal, and a center frequency point of the third frequency band is in a frequency band range of the high-frequency band.

10. The antenna device according to claim 8, wherein the third conductive branch includes a first radiating portion and a second radiating portion, the first radiating portion and the fourth conductive branch extending along a first direction; the second radiation part is connected to one end of the first radiation part far away from the fourth conductive branch and is arranged in an extending way along a second direction; the first conductive branch is arranged at one end of the fourth conductive branch, which is far away from the third conductive branch, and is arranged along the second direction in an extending way, and the second direction is intersected with the first direction.

11. The antenna device according to claim 10, wherein the fourth conductive branch includes a first radiator and a second radiator, the first radiator, and the second radiator are sequentially disposed along the first direction, a gap is disposed between the first radiator and the second radiator, the second radiator is electrically connected to the feed module and resonates under current excitation transmitted by the feed module, and when the second radiator resonates, radiant energy is coupled to the first radiator through the gap.

12. The antenna device according to any one of claims 1 to 11, further comprising a fifth conductive branch and a sixth conductive branch, wherein the fifth conductive branch is located between the second conductive branch and the sixth conductive branch, and both ends of the fifth conductive branch are spaced apart from the second conductive branch and the sixth conductive branch, respectively; the fifth conductive branch and the sixth conductive branch are each configured to support Wireless-Fidelity (Wi-Fi) signals.

13. The antenna apparatus of claim 12, wherein the fifth conductive branch and the sixth conductive branch are each configured to support 2.4G and 5G frequency bands of Wi-Fi signals.

14. The antenna device of claim 12, wherein the antenna device has opposing first and second sides, and opposing third and fourth sides; the third side and the fourth side are respectively located between the first side and the second side, the first conductive branch is arranged on the first side, the second conductive branch is arranged on the fourth side, and the fifth conductive branch and the sixth conductive branch are arranged on the second side.

15. The antenna device of claim 5, further comprising a seventh conductive branch, an eighth conductive branch, a ninth conductive branch, and a tenth conductive branch;

the seventh conductive branch is arranged on the fourth side and is spaced from the second conductive branch, and the seventh conductive branch is used for supporting intermediate frequency and high frequency bands of 5G NR signals and LTE signals;

the eighth conductive branch is arranged on the first side and is used for supporting a low-frequency band of 5G NR signals and LTE signals;

the ninth conductive branch is arranged on the first side and is spaced from the eighth conductive branch, and the ninth conductive branch is used for supporting a 5G NR signal;

The tenth conductive branch is arranged on the second side, and the tenth conductive branch is used for supporting the intermediate frequency and high frequency band supporting 5G NR signals and LTE signals and the 2.4G band supporting Wi-Fi signals.

16. The antenna device according to any one of claims 1-11, further comprising a first matching circuit and a tuning inductance, the first conductive branch being grounded through the first matching circuit; the first matching circuit comprises a first inductor, a first capacitor and a first switch module, wherein the first inductor and the first capacitor are connected in parallel, and the first inductor and the first capacitor are respectively controlled by the first switch module; the first feed point is grounded through the tuning inductor; or,

the antenna device also comprises a second matching circuit and a third matching circuit, wherein the first feed point is grounded through the second matching circuit and is connected with the feed module through the third matching circuit; the second matching circuit comprises a second inductor, a second capacitor and a second switch module, wherein the second inductor and the second capacitor are connected in parallel, and the second inductor and the second capacitor are respectively controlled by the second switch module; the third matching circuit comprises a third inductor, a third capacitor and a third switch module, wherein the third inductor and the third capacitor are connected in parallel, and the third inductor and the third capacitor are respectively controlled by the third switch module.

17. An electronic device comprising a housing and the antenna arrangement of any one of claims 1 to 16, the antenna arrangement being integrated in the housing.

18. The electronic device of claim 17, wherein the electronic device comprises a first electronic component, a second electronic component, and a spindle mechanism connected between the first electronic component and the second electronic component; the first conductive branch is arranged on the second electronic component, and the second conductive branch is arranged on the first electronic component.