CN113078451A - Antenna system and electronic equipment - Google Patents
Antenna system and electronic equipment Download PDFInfo
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- CN113078451A CN113078451A CN202110333495.XA CN202110333495A CN113078451A CN 113078451 A CN113078451 A CN 113078451A CN 202110333495 A CN202110333495 A CN 202110333495A CN 113078451 A CN113078451 A CN 113078451A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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Abstract
The application discloses antenna system and electronic equipment, this antenna system includes: a first antenna body; the first antenna body is connected with a first grounding point; the first antenna body is connected with at least two antenna feed-in ends through a first frequency band control circuit, wherein the at least two antenna feed-in ends are respectively connected with communication modules of different communication types; the first frequency band control circuit is used for controlling transmission of communication signals between the antenna signal feed end and the first antenna body according to the communication frequency band corresponding to the communication module connected with the antenna feed end. The scheme of this application can reduce the equipment space that the installation antenna needs to occupy.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an antenna system and an electronic device.
Background
With the development of communication technology, in order to enable an electronic device to support the transmission and reception of various types of communication signals, a plurality of antennas are required to be provided in the electronic device. For example, with the advent of the fifth-Generation (5G) era, an electronic device is equipped with an antenna supporting a Wireless Local Area Network (WLAN) in addition to one or more 5G antennas.
As the types and number of antennas to be installed in electronic devices increase, the total space occupied by the electronic devices to install the respective antennas also increases. However, the space of the electronic device is fixed and limited, and therefore, how to reduce the space occupied by the mounted antenna is a technical problem to be solved by those skilled in the art on the basis that a plurality of antennas of various types need to be mounted in the electronic device.
Disclosure of Invention
The application provides an antenna system and an electronic device.
Wherein, an antenna system includes:
a first antenna body;
the first antenna body is connected with a first grounding point;
the first antenna body is connected with at least two antenna feed-in ends through a first frequency band control circuit, wherein the at least two antenna feed-in ends are respectively connected with communication modules of different communication types;
the first frequency band control circuit is used for controlling the transmission of communication signals between the antenna signal feed end and the first antenna body according to the communication frequency band corresponding to the communication module connected with the antenna feed end.
In a possible implementation manner, the first frequency band control circuit is a frequency division control circuit, and the first antenna body is connected with at least two antenna feed-in ends through the frequency division control circuit;
the frequency division control circuit is used for controlling the antenna feed-in end and the first antenna body to transmit communication signals in a communication frequency band corresponding to a communication module connected with the antenna feed-in end aiming at each antenna feed-in end.
In yet another possible implementation manner, the first frequency band control circuit is a frequency selection control circuit;
the first antenna body is respectively connected with at least two antenna feed-in ends through different frequency-selecting control circuits, and each frequency-selecting control circuit is connected with one antenna feed-in end;
the frequency selection control circuit is used for transmitting communication signals belonging to a communication frequency band corresponding to the antenna feed-in end connected with the frequency selection control circuit between the first antenna body and the antenna feed-in end connected with the frequency selection control circuit, and filtering communication signals outside the communication frequency band corresponding to the antenna feed-in end connected with the frequency selection control circuit.
In yet another possible implementation manner, the at least two antenna feeding terminals include: a first antenna feed-in terminal supporting connection of a first communication module of a fifth generation mobile communication network and a second antenna feed-in terminal supporting connection of a second communication module of a wireless local area network;
the first antenna body is an antenna radiator supporting a fifth generation mobile communication network and a wireless local area network.
In another possible implementation manner, the method further includes:
a second antenna body, the second antenna body having a different range of communication frequency bands supported by the first antenna body;
the second antenna body is connected with a second grounding point;
at least two antenna feed-in ends that first antenna body passes through first frequency channel control circuit connection include: a first antenna feed-in terminal and a second antenna feed-in terminal;
the second antenna body is connected with the second antenna feed-in end through a second frequency band control circuit, and the first antenna body is connected with the second frequency band control circuit through the first frequency band control circuit, so that the first antenna body is connected with the second antenna feed-in end through the first frequency band control circuit and the second frequency band control circuit;
the first frequency band control circuit is used for controlling the transmission of communication signals belonging to a first part of communication frequency bands corresponding to a second antenna feed-in end between the first antenna body and the second frequency band control circuit;
the second frequency band control circuit is configured to control transmission of a communication signal of the first part of the communication frequency band between the first frequency band control circuit and the second antenna feeding end, and to transmit a communication signal of a second part of the communication frequency band corresponding to the second antenna feeding end between the second antenna body and the second antenna feeding end;
the communication frequency band corresponding to the communication module connected to the second antenna feed end includes the first part of communication frequency band and the second part of communication frequency band.
In yet another possible implementation manner, the first frequency band control circuit is a first frequency division control circuit, and the second frequency band control circuit is a second frequency division control circuit;
the first antenna body is connected with the first antenna feed-in end through a first frequency division control circuit;
the second antenna body is connected with the second antenna feed-in end through a second frequency-division control circuit, and the first frequency-division control circuit is connected with the second frequency-division control circuit.
In yet another possible implementation manner, the first frequency band control circuit includes a first frequency selection control circuit and a second frequency selection control circuit;
the second frequency band control circuit is a frequency division control circuit;
the first antenna body is connected with the first antenna feed-in end through the first frequency-selecting control circuit, and the first antenna body is connected with the frequency division control circuit through the second frequency-selecting control circuit, so that the first antenna body is connected with the second antenna feed-in end through the second frequency-selecting control circuit and the frequency division control circuit;
the first frequency-selecting control circuit is used for transmitting a communication signal belonging to a communication frequency band corresponding to the first antenna feeding end between the first antenna body and the first antenna feeding end, and filtering out the communication signal outside the communication frequency band corresponding to the first antenna feeding end;
the second frequency selection control circuit is used for transmitting the communication signals belonging to the first part of communication frequency band between the first antenna body and the frequency division control circuit and filtering the communication signals outside the first part of communication frequency band.
In yet another possible implementation manner, the first antenna feeding end is connected with a communication module supporting a wireless local area network, and the second antenna feeding end is connected with a communication module supporting a fifth-generation mobile communication network.
Wherein, an electronic equipment includes: at least one antenna system;
wherein the antenna system comprises:
a first antenna body;
at least two communication modules of different communication types;
the first antenna body is connected with a first grounding point;
the first antenna body is connected with at least two antenna feed-in ends through a first frequency band control circuit, wherein the at least two antenna feed-in ends are respectively connected with communication modules of different communication types;
the first frequency band control circuit is used for controlling the transmission of communication signals between the antenna signal feed end and the antenna body according to the communication frequency band corresponding to the communication module connected with the antenna feed end.
In one possible implementation manner, the antenna system in the electronic device further includes:
a second antenna body, the second antenna body having a different range of communication frequency bands supported by the first antenna body;
the second antenna body is connected with a second grounding point;
at least two antenna feed-in ends that first antenna body passes through first frequency channel control circuit connection include: a first antenna feed-in terminal and a second antenna feed-in terminal;
the second antenna body is connected with the second antenna feed-in end through a second frequency band control circuit, and the first antenna body is connected with the second frequency band control circuit through the first frequency band control circuit, so that the first antenna body is connected with the second antenna feed-in end through the first frequency band control circuit and the second frequency band control circuit;
the first frequency band control circuit is used for controlling the transmission of communication signals belonging to a first part of communication frequency bands corresponding to a second antenna feed-in end between the first antenna body and the second frequency band control circuit;
the second frequency band control circuit is configured to control transmission of a communication signal of the first part of the communication frequency band between the first frequency band control circuit and the second antenna feeding end, and to transmit a communication signal of a second part of the communication frequency band corresponding to the second antenna feeding end between the second antenna body and the second antenna feeding end;
the communication frequency band corresponding to the communication module connected to the second antenna feed end includes the first part of communication frequency band and the second part of communication frequency band.
According to the scheme, the antenna body is connected with at least two antenna feed ends through the frequency band control circuit, the frequency band control circuit can control transmission of communication signals between each antenna feed end and the antenna body according to communication frequency bands of the communication modules connected with each antenna feed end, and therefore the communication network of at least two communication types can be supported through the antenna body, electronic equipment can support the communication networks of multiple communication types through the antenna body, the number of antennas required to be installed on the electronic equipment can be reduced, and equipment space required to be occupied by the antennas is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an antenna system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another antenna system according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a conventional electronic device with multiple antennas;
fig. 4 is a schematic diagram illustrating an electronic device provided with multiple antennas according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of another antenna system according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of another antenna system according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an antenna disposed in an electronic device according to an embodiment of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be practiced otherwise than as specifically illustrated.
Detailed Description
The scheme of the application provides antenna system and electronic equipment suitable for among the electronic equipment, can reduce the antenna quantity that the electronic equipment needs to set up on the basis that electronic equipment need set up and support multiple type communication network through the scheme of this application to reduce the required space that occupies of setting up the antenna in the electronic equipment.
In the present application, the antenna system includes:
a first antenna body;
the first antenna body is connected with a first grounding point;
and the first antenna body is connected with at least two antenna feed-in ends through a first frequency band control circuit. The antenna feed end is also called an antenna signal feed end or an antenna feed point, and is used for connecting with a communication module including an antenna feed circuit and the like, so that communication signals can be transmitted between the antenna body and the communication module.
In the present application, the at least two antenna feed terminals are respectively connected to communication modules of different communication types. Wherein the communication modules of different communication types support communication networks of different communication types.
For example, the antenna feed terminal may be an antenna feed terminal connected to a communication module supporting a fifth generation mobile communication Network (5G), an antenna feed terminal connected to a communication module supporting a Wireless Local Area Network (WLAN), or an antenna feed terminal connected to a communication module supporting a Long Term Evolution (LTE) technology.
In this application, the first frequency band control circuit is configured to control transmission of a communication signal between the antenna feeding end and the first antenna body according to a communication frequency band corresponding to a communication module connected to the antenna feeding end.
For example, for each antenna feeding end, if the communication module connected to the antenna feeding end supports the communication band corresponding to the 5G network, the first band control circuit may control the antenna feeding end and the first antenna body to transmit only the signal of the communication band corresponding to the 5G network.
It can be understood that the antenna body between each antenna feeding end and the grounding point constitutes one antenna, and therefore, the first antenna body is connected with the two antenna feeding ends (or the multiple antenna feeding ends) through the first frequency band control circuit, and the first antenna body and each antenna feeding end can be controlled to transmit the communication signals of the corresponding communication frequency bands through the first frequency band control circuit, so that one antenna body can be used as two (or multiple) antennas.
Compared with the situation that a plurality of antennas supporting different communication types are respectively arranged in the electronic equipment, the number of the antennas arranged in the electronic equipment can be reduced by arranging one antenna to support a communication network of multiple communication types, the requirement of the antennas on the space of the electronic equipment can be greatly reduced by reducing the number of the antennas, and the difficulty of system design is reduced.
This application is connected with two at least antennas through frequency channel control circuit and presents the end on an antenna body, because frequency channel control circuit can be according to the communication frequency channel of the communication module that each antenna presented the end and connect, control the transmission of the communication signal between each antenna presented the end and the antenna body, thereby make and can support two at least communication type's communication network through an antenna body, just also make electronic equipment through an antenna body alright support multiple communication type's communication network, and then can reduce the antenna quantity that the last required installation of electronic equipment, just also reduced the required equipment space that occupies of installation antenna.
In addition, the inventor researches and discovers that under the condition that the space of the electronic equipment is limited, the existing scheme generally adopts a mode of compressing the size of a single antenna. However, the design of the antenna is generally determined by the type of resonance to be the resonance size (electrical length) with the best radiation performance at the size of 1/4, 1/2 or 1 wavelength. If the space size is compressed and cannot be at the optimum resonance size, the antenna performance is reduced, the operating bandwidth is narrowed, and the radiation efficiency is reduced. The more the size compression, the more the performance degradation.
And for the size of the single antenna of compression to satisfy the mode that electronic equipment can install many antennas, reduce the antenna quantity through the scheme of this application and satisfy the mode that electronic equipment supports multiple communication network, can reduce the condition that single antenna performance is sacrificed because of the single antenna size of compression.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to several possible cases of the antenna system in the present application and with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
In a possible implementation manner, the antenna system of the present application may only include an antenna body, and the antenna body may be connected to two or more antenna feeding terminals through the frequency band control circuit.
The type of the frequency band control circuit connected with the antenna body can be various, so that the mode that the antenna body is connected with at least two antenna feed-in ends through the frequency band control circuit is also various. Several possible scenarios are exemplified below:
first, a first frequency band control circuit is taken as a frequency division control circuit for illustration, in this case, the first antenna body is connected with at least two antenna feed terminals through the frequency division control circuit.
The frequency division control circuit is used for controlling each antenna feed-in end to transmit communication signals in a communication frequency band corresponding to a communication module connected with the antenna feed-in end between the antenna feed-in end and the first antenna body.
For convenience of introduction, the first antenna body is connected to two antenna feeding terminals through a frequency division control circuit. Fig. 1 is a schematic diagram illustrating a structure of an antenna system according to the present application.
As can be seen from fig. 1, the antenna system includes an antenna body 101, which is a first antenna body. The antenna body may be a radiator of the antenna.
A grounding point 102, i.e. a first grounding point, is connected to the antenna body 101.
The antenna body 101 is connected to a frequency division control circuit 103, and the frequency division control circuit 103 is connected to two antenna feed terminals 104, so that the antenna body is connected to the two antenna feed terminals through the frequency division control circuit.
Wherein each antenna feed-in end can be connected with a communication module (not shown in fig. 1), and the communication modules connected with the two antenna feed-in ends have different communication types, i.e. the two communication modules support communication networks of different communication types.
On the basis, the frequency division control circuit actually realizes the transmission of two paths of communication signals with different frequency range between the antenna body and the two antenna feed-in ends respectively.
For example, in one possible implementation, the frequency division control circuit may be a diplexer circuit of a transceiver duplexer, where the diplexer is a three-port radio frequency device, and may use the frequency division function of a high-pass, low-pass, or band-pass filter, so that the same antenna or transmission line may be used for two signal paths, thereby implementing the reception and transmission of the interface of two different frequency band signals by the same antenna. Based on the communication frequency bands corresponding to the two signal feed-in ends, a diplexer circuit with proper filtering performance and attenuation degree can be configured.
Correspondingly, the bandwidth covered by the antenna body supports the communication frequency band required by the at least two antenna feed-in ends connected with the antenna body.
In one possible implementation manner, the at least two antenna feeding ends connected to the antenna body may include: the antenna comprises a first antenna feed-in end supporting connection of a first communication module of a fifth generation mobile communication network, and a second antenna feed-in end supporting connection of a second communication module of a wireless local area network.
Correspondingly, the first antenna body is an antenna radiator supporting a fifth generation mobile communication network and a wireless local area network.
For example, fig. 1 illustrates an antenna feeding end as a 5G antenna feeding end connected to a 5G communication module, and another antenna feeding end as a WLAN antenna feeding end connected to a WLAN communication module.
The working frequency band of the 5G communication module is assumed to be the communication frequency band corresponding to Sub6GHz, and the working frequency band of WIAN is 2.4-2.5 GHz. On this basis, the antenna body needs to cover the frequency band corresponding to Sub6GHz in 5G and the frequency band corresponding to 2.4-2.5 GHz of WLAN at the same time. The frequency band corresponding to Sub6GHz may include: 617MHZ-960MHZ, 1417MHZ-1527MHZ, 1710MHZ-2690MHZ, 3300MHZ-4200MHZ, 4400MHZ-5000MHZ and 5150MHZ-7125 MHz.
Correspondingly, the frequency division control circuit can control the communication signals in the communication frequency band corresponding to Sub6GHz to be transmitted between the antenna body and the 5G antenna feed end, and control the communication signals in the frequency band of 2.4-2.5 GHz to be divided to be transmitted between the WLAN antenna feed end and the antenna body.
It can be understood that, in fig. 1, the antenna body is connected to a 5G antenna feed-in terminal and a WLAN antenna feed-in terminal through a frequency division control circuit as an example, but it can be understood that, in practical applications, the two antenna feed-in terminals may also have other situations, for example, the two antenna feed-in terminals may also be connected to an LTE antenna feed-in terminal and a 5G antenna feed-in terminal that are connected to a communication module supporting Long Term Evolution (LTE) technology; or an LTE antenna feed-in terminal and a WLAN antenna feed-in terminal, etc.
Of course, the communication modules of different communication types may also be communication modules that support different frequency bands and use one communication network technology. For example, the communication modules support a 5G network but support different communication bands, and accordingly, the two antenna feeding ends may be feeding ends supporting different communication bands in the 5G network.
It should be noted that fig. 1 is only a schematic diagram, in practical applications, the antenna body may also be connected to three or more antenna signal feed points corresponding to different communication types, and on this basis, the frequency division control circuit needs to perform frequency division based on the connected antenna signal feed points.
In the present application, the antenna system shown in fig. 1 is used to implement the functions of two antennas by multiplexing one antenna body, so that the overall structure of the antenna system is relatively simple and easy to design.
However, in this way, the antenna body needs to be designed with the bandwidth by comprehensively considering all communication frequency bands corresponding to the antenna signal feed points of the two communication types, and certain requirements are imposed on the design of the antenna body and the required space environment.
In order to further improve the performance of the antenna, reduce the requirements of the antenna body design on space and size, and increase the flexibility of the antenna body design, the present application also provides another possible implementation manner in the case that the antenna system includes an antenna body.
In another possible implementation manner, the first frequency band control circuit is designed as a frequency selection control circuit, and the first antenna body is connected with at least two antenna feeding terminals through different frequency selection control circuits, and each frequency selection control circuit is connected with only one antenna feeding terminal. In this case, the frequency-selective control circuit and the antenna feed-in terminal are in one-to-one correspondence.
Correspondingly, for each frequency-selective control circuit, the frequency-selective control circuit is configured to transmit a communication signal belonging to a communication frequency band corresponding to the antenna feed-in end connected to the frequency-selective control circuit between the first antenna body and the antenna feed-in end connected to the frequency-selective control circuit, and filter out communication signals outside the communication frequency band corresponding to the antenna feed-in end connected to the frequency-selective control circuit.
This is explained below with reference to fig. 2.
As shown in fig. 2, the antenna system includes an antenna body 201, i.e., the aforementioned first antenna body, and at least two frequency-selective control circuits 202 connected to the antenna body 201.
Wherein, the antenna body 201 is connected to a grounding point 203
Each frequency-selective control circuit 202 is connected to an antenna feed terminal 204, so that the antenna body is connected to the antenna feed terminal 204 through the frequency-selective control circuit.
In fig. 2, the function of two antennas is realized by an antenna body, and therefore, in fig. 2, the antenna system includes two antenna feeding terminals 204 as an example. Correspondingly, each antenna feed-in terminal is connected to the antenna body through different frequency-selecting control circuits, so that the antenna system includes two frequency-selecting control circuits 202.
In this case, each frequency-selective control circuit only needs to control the antenna body and the antenna feed-in end to transmit the communication signal of the communication frequency band corresponding to the antenna feed-in end connected to the frequency-selective control circuit (i.e., the communication frequency band supported by the communication module connected to the antenna feed-in end).
In practical application, the frequency-selective control circuit can be designed as a passage in the communication frequency band according to the communication frequency band corresponding to the antenna feed-in end connected with the frequency-selective control circuit, so as to block signals of other communication frequency bands from passing through.
For example, in fig. 2, an antenna feeding end of the antenna system is taken as a 5G signal feeding end connected to the 5G communication module and a WLAN signal feeding end connected to the WLAN communication module.
Correspondingly, the 5G signal feed-in end is connected to the first communication module supporting the fifth generation mobile communication network, and the WLAN signal feed-in end is connected to the second communication module supporting the WLAN. On this basis, the first antenna body is an antenna radiator supporting a fifth generation mobile communication network and a wireless local area network.
The 5G MIMO signal feed-in terminal can be a 5G MIMO signal feed-in terminal supporting a 5G multiple-in multiple-out (MIMO) technology.
The frequency selection control circuit connected with the 5G MIMO signal feed-in end can be directly a channel outside the WLAN frequency band (a channel to the 5G MIMO frequency band), but blocks the passing of the WLAN dual-frequency signal, thereby realizing the effect of high impedance state or equivalently opening the channel on the WLAN frequency band and isolating the mutual influence between the WLAN signal and the 5G MIMO signal.
Similarly, the frequency-selecting control circuit connected to the WLAN signal feed-in terminal is designed as a pass-through of the WLAN frequency band, and the other frequency bands are in a high impedance state or an open circuit.
In this case, as seen from the 5G MIMO signal feed-in terminal, the connection point on the antenna body for connecting the WLAN signal feed-in terminal is in an open circuit state, so that it is not affected by WLAN signals and systems, and the 5G MIMO can implement separate feed and matching network design, which is equal to that the 5G MIMO antenna feed-in terminal and the antenna body constitute a separate 5G MIMO antenna.
As seen from the WLAN signal feeding end, a separate WLAN antenna is actually formed between the WLAN signal feeding end and the antenna body.
As can be seen from the design in fig. 2, in the present application, the design of the WLAN antenna and the 5G (e.g., 5G MIMO) antenna is implemented on the same antenna, and the multiplexing technology of the antenna body on different frequency bands is implemented, so that the antenna can have two independent antennas on the circuit, but only occupies the physical space of the antenna. Therefore, under the condition that the types of the antennas required by the electronic equipment are not changed, the number of the antennas can be reduced by arranging the antenna system of the embodiment, and therefore the antenna space required to be occupied is reduced.
Meanwhile, compared with fig. 1, by adopting the scheme corresponding to the embodiment in fig. 2, in the bandwidth design process of the antenna body, antenna design is performed without integrating the frequencies required to be supported by all the antenna feed-in ends, and the antenna design corresponding to each antenna feed-in end is performed on the same antenna body, so that more flexible antenna design can be realized, higher antenna performance can be achieved, and the same antenna body can be multiplexed more efficiently.
It can be understood that fig. 2 illustrates two antenna feeding ends of the antenna body access 5G and the WLAN as an example, in practical applications, the two antenna feeding ends of the antenna body access may also be other antenna feeding ends supporting two different communication frequency bands, and only the communication frequency bands corresponding to the two antenna feeding ends are not overlapped and can be avoided from each other. Certainly, in order to facilitate the design or selection of each frequency selection control circuit and reduce the design difficulty, a certain frequency difference may exist between different frequency bands corresponding to different antenna feed-in ends as an isolation band.
It can be understood that fig. 2 illustrates an antenna feeding end of an antenna body connected to two different communication types through two frequency-selecting control circuits, in practical applications, the antenna body may further be connected to a plurality of antenna signal feeding points supporting different communication frequency bands through more frequency-selecting control circuits, as long as the communication frequency bands supported by the plurality of antenna feeding ends are not overlapped.
It is understood that the solutions shown in fig. 1 and fig. 2 and the related embodiments can be applied to antenna arrangements on electronic devices such as mobile phones, tablet computers, notebook computers, and the like. One or more antenna systems as above may be set in the electronic device according to actual needs, which is not described in detail herein.
To facilitate an understanding of the benefits of the embodiments described above in connection with fig. 1 and 2 in this application, reference is made to fig. 3 and 4.
Fig. 3 is a schematic diagram illustrating a conventional electronic device with multiple antennas.
In fig. 3, antennas designed in a conventional manner are currently used in the electronic device, each antenna only supports one communication type, and as can be seen from fig. 3, 6 antennas, namely a 5G main antenna, a WLAN main antenna, a 5G MIMO1 antenna, a 5G MIMO2 antenna, a WLAN auxiliary antenna and a 5G auxiliary antenna, are respectively arranged on the electronic device.
Fig. 4 is a schematic diagram of the electronic device according to the present application provided with multiple antennas.
In fig. 4, the scheme of the present application may be adopted to design the WLAN main antenna and the 5G MIMO1 in the electronic device of fig. 3 onto one antenna to form an antenna system; and the WLAN auxiliary antenna and the 5G MIMO2 antenna in the electronic equipment are designed into one antenna to form the other antenna. On this basis, the types and corresponding frequency bands of the communication networks supported in the electronic device in fig. 4 are the same as those of the electronic device shown in fig. 3, but the number of antennas required to be arranged in the electronic device in fig. 4 is only four, and the space required to be occupied by arranging the antennas can be reduced due to the reduction of the number of antennas in the electronic device.
Of course, fig. 3 and fig. 4 take the 5G-related antenna and the WLAN-related antenna as examples, and if the 5G-related antenna is replaced by an antenna related to a fourth generation mobile communication network 4G, or the WLAN-related antenna is replaced by an antenna related to other communication network technologies, the effect is the same, and details are not described herein.
It can be understood that, with the continuous development of communication technology, many kinds of antennas need to cover a larger operating bandwidth, for example, the operating frequency bands of 4G or 5G antennas are more. Electronic devices have also evolved from configuring one antenna to installing multiple antennas for networks of the same mobile communication network technology. For example, when 5G 4x4MIMO and WLAN 2x2MIMO antennas are installed in an electronic device, 6 antennas need to be integrally installed on a terminal, which brings great challenges to system design and space arrangement. Particularly, in electronic devices such as notebook computers and the like using metal housings, antenna design difficulty is high, and it is difficult to realize good design under the condition of ensuring the clearance required by the antenna.
In order to reduce the requirements of the antenna on space and environment, the antenna system can also separate the working frequency band which needs to be covered by one mobile communication network and multiplex the working frequency band to the antennas of other types of mobile communication networks. In this regard, in yet another possible implementation of the present application, the antenna system may include two different antenna bodies, namely a first antenna body and a second antenna body.
The range of the communication frequency band supported by the second antenna body is different from that supported by the first antenna body.
The first antenna body is connected with a first grounding point;
the second antenna body is connected with a second grounding point.
The first antenna body is connected with a first antenna feed-in end through a first frequency band control circuit;
the second antenna body is connected with the second antenna feeding end through the second frequency band control circuit, and the first antenna body is connected with the second frequency band control circuit through the first frequency band control circuit, so that the first antenna body is connected with the second antenna feeding end through the first frequency band control circuit and the second frequency band control circuit.
The first frequency band control circuit is used for controlling communication signals which belong to a communication frequency band corresponding to the first antenna feed-in end to be transmitted between the first antenna body and the first antenna feed-in end; and controlling the transmission of communication signals belonging to a first part of communication frequency bands corresponding to the feeding end of the second antenna between the first antenna body and the second frequency band control circuit;
the second frequency band control circuit is used for controlling the communication signals of the first part of communication frequency band to be transmitted between the first frequency band control circuit and the second antenna feed-in end, and transmitting the communication signals of the second part of communication frequency band corresponding to the second antenna feed-in end between the second antenna body and the second antenna feed-in end;
the communication frequency band corresponding to the communication module connected to the second antenna feed end includes the first part of communication frequency band and the second part of communication frequency band.
Therefore, the antenna system separates a part of the working frequency band required to be covered by the feeding end of the second antenna out to multiplex the first antenna body, so that the first antenna body can be used as antennas of two different working frequency bands. Meanwhile, the second antenna body only needs to cover the rest working frequency band in the working frequency band of the feeding end of the second antenna, so that the working frequency band required to be covered by the second antenna body can be reduced. Therefore, even if the second antenna feed-in end needs to support more working frequency bands, the situations that the second antenna body needs to cover all the working frequency bands of the second antenna feed-in end, so that the design complexity of the second antenna body is high and the required occupied space is overlarge can be reduced, and the space of the electronic equipment required to be occupied by the second antenna body can be reduced.
In this application, in a possible implementation manner that the antenna system includes the first antenna body and the second antenna body, the first frequency band control circuit and the second frequency band control circuit may be in various combinations, which will be described in the following cases.
In one possible case, the first band control circuit may be a first frequency division control circuit, and the second band control circuit is a second frequency division control circuit.
Correspondingly, the first antenna body is connected with the first antenna feed-in end through the first frequency division control circuit.
The second antenna body is connected with the second antenna feed-in end through a second frequency-dividing control circuit, and the first frequency-dividing control circuit is connected with the second frequency-dividing control circuit, so that the first antenna body is connected with the second antenna feed-in end through the first frequency-dividing circuit and the second frequency-dividing circuit.
For convenience of understanding, the first antenna feeding end and the second antenna feeding end are respectively a WLAN antenna feeding end and a 5G antenna feeding end, which are taken as an example for description. Fig. 5 shows a schematic diagram of another possible structure of the antenna system of the present application.
As can be seen from fig. 5, the antenna system comprises: a first antenna body 501 and a second antenna body 502.
The first antenna body is provided with a first grounding point 503, and the second antenna body is provided with a second grounding point 504.
The first antenna body 501 is connected to a WLAN antenna feed-in end 506 through a first frequency division control circuit 505, and the WLAN antenna feed-in end is used for connecting a WLAN communication module supporting a WLAN working frequency band. Accordingly, the first frequency-division control circuit 505 can realize transmission of the communication signal of the WLAN corresponding to the working frequency band between the first antenna body and the WLAN antenna feeding end.
The second antenna body 502 is connected to a 5G antenna feed terminal 508 through a second frequency-division control circuit 507.
Meanwhile, the second frequency-division control circuit 507 is further connected to the first frequency-division control circuit 505, so that the 5G antenna feed-in end 508 is connected to the first antenna body 501 through the second frequency-division control circuit 507 and the first frequency-division control circuit 505.
On the basis, the second frequency-division control circuit transmits the communication signals of the second part of the 5G working frequency band between the 5G antenna feed-in end and the first frequency-division control circuit, and the first frequency-division control circuit transmits the communication signals of the first part of the 5G working frequency band between the first antenna body and the second frequency-division control circuit. As shown by the arrows in fig. 5, the transmission of communication signals between the first antenna body and the feed end of the 5G antenna is illustrated.
Meanwhile, the second frequency-division control circuit can control the second antenna body and the 5G antenna feed-in end to transmit communication signals of a second part of communication frequency bands in the 5G working frequency bands.
The first part of communication frequency band and the second part of communication frequency band belong to two non-overlapping parts of communication frequency bands in the 5G communication frequency band. For example, the 5G operating frequency band can be divided into three parts, i.e., a medium frequency, a middle frequency and a high frequency, while the first part is an operating frequency band corresponding to the medium frequency and the second part is a communication frequency band corresponding to the middle frequency and the high frequency.
Similar to the previous frequency division control circuit, the first frequency division control circuit and the second frequency division control circuit both realize the transmission of two paths of communication signals with different frequency range between one antenna body and two different antenna feed-in ends respectively. For example, the first frequency-division control circuit and the second frequency-division control circuit may be a duplexer.
It can be understood that the frequency bands of the two signals divided by the first frequency-division control circuit and the second frequency-division control circuit are not completely the same, for example, the first frequency-division control circuit may divide the frequency of the communication signal in the WLAN frequency band and the communication signal in the first part of the 5G communication frequency band, and the second frequency-division control circuit actually divides the frequency of the signals in the first part of the 5G communication frequency band and the second part of the 5G communication frequency band.
As can be seen from the embodiment shown in fig. 5, the first antenna body and the 5G antenna feed-in terminal via the first frequency division control circuit and the second frequency division control circuit form an antenna supporting the second part of the communication frequency band in the 5G operating frequency band. Meanwhile, the second antenna body is connected with the feed-in end of the WLAN antenna through the first frequency division control circuit, so that the first antenna body can be used as an antenna of a first part of communication frequency band in 5G and the WLAN antenna. Fig. 5 may essentially multiplex 5G communication bands onto the WLAN antenna, and since the WLAN antenna itself may cover more bands, it is possible to flexibly select a part of the 5G communication bands to be multiplexed onto the WLAN antenna.
It can be understood that, in order to reuse a part of the communication frequency band in the 5G communication frequency band on the WLAN antenna, it is required to ensure that the selected part of the communication frequency band in the 5G does not overlap with the WLAN frequency band, and preferably a certain frequency difference can be provided as an isolation band, so as to facilitate design or model selection of the first frequency band circuit, and reduce the design difficulty. Meanwhile, the new WLAN antenna body with increased working bandwidth is designed by considering the new communication frequency band in 5G and the original WLAN frequency band as design indexes on the design of the original WLAN antenna, so as to obtain the first antenna body.
Meanwhile, compared with the antenna which is used for supporting a plurality of different communication frequency bands in 5G through two or more antenna bodies, the scheme of the embodiment is adopted, the number of the antenna which is added independently is reduced or even avoided, and the space of the electronic equipment occupied by the antenna is favorably reduced.
In addition, compared with the case that one second antenna body is used for bearing the first part of communication frequency band and the second part of communication frequency band in 5G, the range of the communication frequency band supported by the second antenna body can be reduced through the mode of fig. 5, the design difficulty of the second body can be reduced due to the reduction of the working bandwidth of the second antenna body, the size of the second antenna body can be reduced, and the antenna performance cannot be affected.
It should be noted that fig. 5 is an example in which the first antenna feeding end is a WLAN antenna feeding end, and the second antenna feeding end is a 5G antenna feeding end, in practical application, the two antenna feeding ends may have other possibilities as long as the communication frequency band corresponding to the second antenna feeding end is divided into two parts, and one part of the two parts multiplexes the first antenna body to realize signal transmission of the corresponding communication frequency band. For example, the first antenna feeding end may be a WLAN antenna feeding end, and the second antenna feeding end may be connected to a 4G antenna feeding end of the 4G communication module.
Of course, there are other possibilities for the first antenna feed and the second antenna feed, which are not listed here.
It can be understood that, in fig. 5 and the related embodiments, in the case that the first frequency-division control circuit multiplexes a portion of the communication frequency band corresponding to the feeding end of the second antenna to the first antenna body, if the first antenna body needs to design the first antenna body by combining the originally supported communication frequency band and the newly added whole communication frequency band formed by the two portions of the communication frequency band, the complexity of designing the first antenna body is relatively high. And if the spatial size and environment of the first antenna body in the electronic device are limited, all the multiplexed communication bands may not be satisfied.
In order to further reduce the complexity of the design of the first antenna body and to reduce the required size of the first antenna body, the present application also provides another possible scenario in an implementation where the antenna system comprises a first antenna body and a second antenna locally.
In this another possible case, the first frequency band control circuit connected to the first antenna body may include a first frequency selection control circuit and a second frequency selection control circuit.
And the second frequency band control circuit is a frequency division control circuit.
On this basis, the first antenna body is connected with the first antenna feed-in end through the first frequency-selecting control circuit, and the first antenna body is connected with the frequency division control circuit (namely, the second frequency band control circuit) through the second frequency-selecting control circuit, so that the first antenna body is connected with the second antenna feed-in end through the second frequency-selecting control circuit and the frequency division control circuit.
The first frequency-selecting control circuit is used for transmitting communication signals belonging to a communication frequency band corresponding to the first antenna feed-in end between the first antenna body and the first antenna feed-in end and filtering communication signals outside the communication frequency band corresponding to the first antenna feed-in end.
The second frequency selection control circuit is used for transmitting communication signals belonging to the first part of communication frequency band between the first antenna body and the frequency division control circuit and filtering communication signals outside the first part of communication frequency band.
And the frequency division control circuit as the second frequency band control circuit has the same function as the previous second frequency division control circuit.
In an optional manner, the first antenna feeding end is connected to a communication module supporting a wireless local area network, and the second antenna feeding end is connected to a communication module supporting a fifth generation mobile communication network.
The following description will still use the first antenna feeding end as the WLAN antenna feeding end and the second antenna feeding end as the 5G antenna feeding end to illustrate the case where the first frequency band control circuit includes the first frequency selection circuit and the second frequency selection circuit.
Fig. 6 is a schematic diagram illustrating another structure of the antenna system provided in the present application.
In fig. 6, the antenna system includes a first antenna body 601 and a second antenna body 602.
The first antenna body 601 is connected to a first grounding point 603, and the second antenna body 602 is connected to a second grounding point 604.
The first antenna body 601 is connected to the WLAN antenna feeding terminal 606 through the first frequency-selecting control circuit 605, and the first antenna body 601 is connected to the frequency-dividing control circuit 608 through the second frequency-selecting control circuit 607, so that the first antenna body 601 is connected to the 5G antenna feeding terminal 609 through the second frequency-selecting control circuit 607 and the frequency-dividing control circuit 608.
The second antenna body is connected to the feed end 609 of the 5G antenna through the crossover control circuit 608.
The first frequency-selecting control circuit 605 is configured to transmit a communication signal belonging to a WLAN communication frequency band between the first antenna body 601 and the WLAN antenna feed-in end, and filter out a communication signal outside the WLAN communication frequency band.
The second frequency selection control circuit 607 is configured to transmit a communication signal belonging to a first part of the 5G communication frequency band between the first antenna body 601 and the frequency division control circuit 608, and filter out a communication signal outside the first part of the 5G communication frequency band.
The frequency division control circuit 608 is configured to control transmission of a communication signal of a second partial communication frequency band between the second antenna body and the 5G antenna feed end; and the communication signal of the first part of communication frequency band in the 5G communication frequency band is divided to be transmitted between the feed-in end of the 5G antenna and the second frequency selection control circuit, so that the second part of communication frequency band is multiplexed on the first antenna body.
The communication frequency band corresponding to the 5G communication module connected to the 5G antenna feed end includes a first part of communication frequency band in the 5G communication frequency band and a second part of communication frequency band in the 5G communication frequency band.
It can be seen that the first antenna body is actually a WLAN antenna added with a first part of 5G communication frequency band, and the second antenna body is a 5G antenna whose working frequency band includes a second part of 5G communication frequency band. The antenna system in fig. 6 may have the benefits of the antenna body in fig. 5.
Meanwhile, in fig. 6, the first antenna body is connected to two different antenna feed ends through two frequency-selective control circuits, so that the first antenna body can be regarded as two independent antennas in terms of circuit, and therefore, when the first antenna body is designed, antennas meeting the requirement of corresponding frequency bands can be designed based on the WLAN communication frequency band and the first part of communication frequency band in 5G, so that the complexity of designing the first antenna body can be reduced, the first part of communication frequency band in 5G z can be multiplexed by using the WLAN antenna body to the maximum extent, and compared with fig. 5, the size of the first antenna body is favorably reduced in the implementation of fig. 6.
Similar to the embodiment of fig. 5, fig. 6 is only an example of a composition of two antenna feeding terminals connected in the antenna system, and in practical applications, the two antenna feeding terminals may have other possibilities, which is not limited thereto.
It can be understood that, in the related embodiments of fig. 5 and fig. 6, if the second antenna body is an antenna radiator supporting a 4G or 5G communication band, a radio frequency switch and a matching circuit may be further added to the second antenna body to implement a tunable antenna design.
To facilitate an understanding of the benefits of fig. 5 and 6, the following description is provided in connection with an application scenario.
At present, when the electronic device is a metal casing, a slot is generally formed in the metal casing to ensure communication of the antenna, the slot is generally located away from the front area, and the slot is located on a side surface of the electronic device, for example, a side surface of a panel on which a keyboard is located in a notebook computer. However, because the antenna slot is moved to the side areas of the electronic device, space is limited, which may result in reduced antenna performance. Meanwhile, due to the design of the antenna with the slot on the side face, the projection of the antenna on the metal shell (the metal shell on the back face of the panel for arranging the keyboard in the notebook computer) is completely positioned in the area covered by the metal shell, the antenna does not have any clear space, and the performance and the bandwidth of the antenna are greatly influenced.
By adopting the schemes of the embodiments related to fig. 5 and fig. 6, a part of communication frequency bands in other communication networks are multiplexed on one antenna, so that the design of a miniaturized antenna can be realized to enhance the bandwidth, no special requirements are required on the design type, the space size, the environment position and the like of the antenna, the antenna can be used for complementary enhancement of the bandwidth between any two antennas, and the antenna has a simple structure and good performance, and is easy to realize and apply on mobile communication terminals such as notebook computers, tablet computers and the like.
As shown in fig. 7, a schematic diagram of an antenna system disposed on a side of a metal housing of an electronic device is shown.
The overall design of the central line in fig. 7 is only to open the seam in the side edge area of the metal shell, the side edge opening seam has little influence on the appearance design of the product, and particularly, the front surface of the metal shell does not need to be damaged, so that a good product appearance design effect is ensured.
Meanwhile, the design of the 5G antenna and the WLAN antenna is realized by adopting a three-section type slot on the side surface of the electronic equipment, but because the antenna is designed to be only slotted on the side surface of the metal shell, a metal panel is arranged right below the antenna projection, the whole antenna projection area is made of metal materials, no antenna clearance exists completely in the design, and the performance and the bandwidth of the antenna are greatly limited.
The performance is improved by adopting the scheme of multiplexing the WLAN antenna to realize the mode of partial 5G antenna bandwidth, and the occupied space required by antenna design can be reduced on the basis of meeting the WLAN communication frequency band and the 5G communication frequency band, so that the influence of the antenna bandwidth and the performance can be reduced.
It is understood that, in the above embodiments of the present application, the structural form of the antenna body may be various, for example, the antenna body may be designed in the form of a Dipole/monopole (Dipole/monopole) antenna, an inverted F/planar inverted F (IFA/PIFA) antenna, a Loop or slot (Loop or slot) antenna, and the like, and the present application is not limited thereto.
In another aspect, the present application also provides an electronic device that may include at least one antenna system. The number of the antenna systems can be designed according to the requirements of the electronic device for different communication networks, which is not limited to this.
The antenna body may be an antenna system mentioned in any of the above embodiments of the present application, and specific reference may be made to the foregoing related description, which is not described herein again.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. Meanwhile, the features described in the embodiments of the present specification may be replaced or combined with each other, so that those skilled in the art can implement or use the present application. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An antenna system, comprising:
a first antenna body;
the first antenna body is connected with a first grounding point;
the first antenna body is connected with at least two antenna feed-in ends through a first frequency band control circuit, wherein the at least two antenna feed-in ends are respectively connected with communication modules of different communication types;
the first frequency band control circuit is used for controlling the transmission of communication signals between the antenna signal feed end and the first antenna body according to the communication frequency band corresponding to the communication module connected with the antenna feed end.
2. The antenna system of claim 1, wherein the first band control circuit is a frequency division control circuit, and the first antenna body is connected with at least two antenna feed terminals through the frequency division control circuit;
the frequency division control circuit is used for controlling the antenna feed-in end and the first antenna body to transmit communication signals in a communication frequency band corresponding to a communication module connected with the antenna feed-in end aiming at each antenna feed-in end.
3. The antenna system of claim 1, the first band control circuit being a frequency selective control circuit;
the first antenna body is respectively connected with at least two antenna feed-in ends through different frequency-selecting control circuits, and each frequency-selecting control circuit is connected with one antenna feed-in end;
the frequency selection control circuit is used for transmitting communication signals belonging to a communication frequency band corresponding to the antenna feed-in end connected with the frequency selection control circuit between the first antenna body and the antenna feed-in end connected with the frequency selection control circuit, and filtering communication signals outside the communication frequency band corresponding to the antenna feed-in end connected with the frequency selection control circuit.
4. An antenna system according to claim 2 or 3, the at least two antenna feed terminals comprising: a first antenna feed-in terminal supporting connection of a first communication module of a fifth generation mobile communication network and a second antenna feed-in terminal supporting connection of a second communication module of a wireless local area network;
the first antenna body is an antenna radiator supporting a fifth generation mobile communication network and a wireless local area network.
5. The antenna system of claim 1, further comprising:
a second antenna body, the second antenna body having a different range of communication frequency bands supported by the first antenna body;
the second antenna body is connected with a second grounding point;
at least two antenna feed-in ends that first antenna body passes through first frequency channel control circuit connection include: a first antenna feed-in terminal and a second antenna feed-in terminal;
the second antenna body is connected with the second antenna feed-in end through a second frequency band control circuit, and the first antenna body is connected with the second frequency band control circuit through the first frequency band control circuit, so that the first antenna body is connected with the second antenna feed-in end through the first frequency band control circuit and the second frequency band control circuit;
the first frequency band control circuit is used for controlling the transmission of communication signals belonging to a first part of communication frequency bands corresponding to a second antenna feed-in end between the first antenna body and the second frequency band control circuit;
the second frequency band control circuit is configured to control transmission of a communication signal of the first part of the communication frequency band between the first frequency band control circuit and the second antenna feeding end, and to transmit a communication signal of a second part of the communication frequency band corresponding to the second antenna feeding end between the second antenna body and the second antenna feeding end;
the communication frequency band corresponding to the communication module connected to the second antenna feed end includes the first part of communication frequency band and the second part of communication frequency band.
6. The antenna system of claim 5, the first band control circuit being a first band control circuit, the second band control circuit being a second band control circuit;
the first antenna body is connected with the first antenna feed-in end through a first frequency division control circuit;
the second antenna body is connected with the second antenna feed-in end through a second frequency-division control circuit, and the first frequency-division control circuit is connected with the second frequency-division control circuit.
7. The antenna system of claim 5, the first band control circuit comprising a first frequency selective control circuit and a second frequency selective control circuit;
the second frequency band control circuit is a frequency division control circuit;
the first antenna body is connected with the first antenna feed-in end through the first frequency-selecting control circuit, and the first antenna body is connected with the frequency division control circuit through the second frequency-selecting control circuit, so that the first antenna body is connected with the second antenna feed-in end through the second frequency-selecting control circuit and the frequency division control circuit;
the first frequency-selecting control circuit is used for transmitting a communication signal belonging to a communication frequency band corresponding to the first antenna feeding end between the first antenna body and the first antenna feeding end, and filtering out the communication signal outside the communication frequency band corresponding to the first antenna feeding end;
the second frequency selection control circuit is used for transmitting the communication signals belonging to the first part of communication frequency band between the first antenna body and the frequency division control circuit and filtering the communication signals outside the first part of communication frequency band.
8. The antenna system according to any of claims 5-7, wherein the first antenna feed is connected to a communication module supporting a wireless local area network, and the second antenna feed is connected to a communication module supporting a fifth generation mobile communication network.
9. An electronic device, comprising: at least one antenna system;
wherein the antenna system comprises:
a first antenna body;
at least two communication modules of different communication types;
the first antenna body is connected with a first grounding point;
the first antenna body is connected with at least two antenna feed-in ends through a first frequency band control circuit, wherein the at least two antenna feed-in ends are respectively connected with communication modules of different communication types;
the first frequency band control circuit is used for controlling the transmission of communication signals between the antenna signal feed end and the antenna body according to the communication frequency band corresponding to the communication module connected with the antenna feed end.
10. The electronic device of claim 9, the antenna system further comprising:
a second antenna body, the second antenna body having a different range of communication frequency bands supported by the first antenna body;
the second antenna body is connected with a second grounding point;
at least two antenna feed-in ends that first antenna body passes through first frequency channel control circuit connection include: a first antenna feed-in terminal and a second antenna feed-in terminal;
the second antenna body is connected with the second antenna feed-in end through a second frequency band control circuit, and the first antenna body is connected with the second frequency band control circuit through the first frequency band control circuit, so that the first antenna body is connected with the second antenna feed-in end through the first frequency band control circuit and the second frequency band control circuit;
the first frequency band control circuit is used for controlling the transmission of communication signals belonging to a first part of communication frequency bands corresponding to a second antenna feed-in end between the first antenna body and the second frequency band control circuit;
the second frequency band control circuit is configured to control transmission of a communication signal of the first part of the communication frequency band between the first frequency band control circuit and the second antenna feeding end, and to transmit a communication signal of a second part of the communication frequency band corresponding to the second antenna feeding end between the second antenna body and the second antenna feeding end;
the communication frequency band corresponding to the communication module connected to the second antenna feed end includes the first part of communication frequency band and the second part of communication frequency band.
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