Mobile terminal

Abstract

The present application provides a mobile terminal, comprising a satellite antenna system, the satellite antenna system comprising a satellite communication chip and a first satellite antenna. The first satellite antenna comprises a first main radiator and a first switch, the first switch being used for switching the working mode of the first satellite antenna. When the first satellite antenna works in a first mode, the satellite antenna system generates a first beam pattern. When the first satellite antenna works in a second mode, the satellite antenna system generates a second beam pattern. The gain of the first beam pattern is higher than the gain of the second beam pattern, and the beam width of the second beam pattern is greater than the beam width of the first beam pattern. According to actual communication requirements, the satellite antenna system provided in the present application can use the first switch to switch the working mode of the first satellite antenna, such that the satellite antenna system generates a corresponding pattern and accordingly can meet different communication requirements.

Description

Mobile terminal

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese Patent Application No. 202411068375.1, filed on August 5, 2024, and entitled “Antenna structure and terminal device”, the entire contents of which are incorporated herein by reference; the present application claims priority to the Chinese Patent Application No. 202411693786.X, filed on November 22, 2024, and entitled “Mobile terminal”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of electronic devices, and in particular to a mobile terminal. BACKGROUND

[0004] With the development of human society, mobile terminals such as mobile phones have become an indispensable tool in people's lives. People's dependence on mobile terminals has affected all aspects of life. With the rise of mobile terminals using communication satellites for communication, users' demand for satellite communication is increasing, which requires satellite communication to implement more and more functions, such as sending messages, making calls, and using satellite antennas for data Internet services or anytime communication. This puts higher requirements on the communication performance of satellite antennas.

[0005] However, since the signal beam of the satellite antenna has a certain directivity, only within a certain beam angle range can it have sufficient signal strength to perform satellite communication. That is, if the directional pattern characteristics of the satellite antenna are limited, it will be difficult to meet the increasing demand for satellite antenna system functions. SUMMARY

[0006] The present application provides a mobile terminal to optimize the performance of satellite communication by dynamically switching the directional pattern of the satellite antenna system.

[0007] In a first aspect, the present application provides a mobile terminal, which comprises a satellite antenna system for implementing satellite communication function of the mobile terminal. Specifically, the satellite antenna system comprises a satellite communication chip and a first satellite antenna, and the first satellite antenna comprises a first main radiator and a first switch coupled to the first main radiator, and the first switch is used to switch the satellite antenna to work in a first mode or a second mode. In the present application, when the first satellite antenna works in the first mode, the satellite antenna system generates a first beam pattern; and when the first satellite antenna works in the second mode, the satellite antenna system generates a second beam pattern. By using the design scheme of the satellite antenna system of the mobile terminal provided in the present application, the first mode and the second mode of the first satellite antenna can be switched by using the first switch according to actual communication requirements, so that the satellite antenna system generates a corresponding beam pattern, so that the satellite antenna system can meet different communication requirements.

[0008] In the present application, the gain of the first beam pattern is higher than the gain of the second beam pattern; and the beam width of the second beam pattern is greater than the beam width of the first beam pattern. Wherein, the gain of the first beam pattern is higher than the gain of the second beam pattern, which can be understood as that the first beam pattern is a high-gain beam pattern relative to the second beam pattern. And the beam width of the second beam pattern is greater than the beam width of the first beam pattern, which can be understood as that the second beam pattern is a wide-beam pattern relative to the first beam pattern.

[0009] Since different communication scenarios usually have different requirements for the beam pattern generated by the satellite antenna system, in order to facilitate the understanding that the beam pattern generated by the satellite antenna system of the mobile terminal provided in the present application can be switched according to the change of the communication scenario, the following will be described in combination with several groups of actual application scenarios.

[0010] In one possible implementation, in the process that the mobile terminal implements the satellite connection or the service scenario by using the satellite antenna system, the satellite connection can be understood as the process that the mobile terminal establishes connection with the communication satellite, and the service scenario can be understood as the process of data service transmission after the satellite connection. At this time, in order to ensure the accuracy of the satellite connection or ensure the transmission rate of the satellite data service, the gain requirement of the beam pattern of the satellite antenna system is higher, and at this time, the first satellite antenna works in the first mode to make the satellite antenna system generate the first beam pattern. In addition, in the process that the mobile terminal implements the paging by using the satellite antenna system, such as the scenario of calling in the wild, at this time, it is hoped that the call can be connected without dead angle in each direction, and at this time, the requirement of the coverage range of the beam pattern of the satellite antenna system is higher, and at this time, the first satellite antenna can work in the second mode, so that the satellite antenna system can generate the second beam pattern. Thus, the satellite antenna system can generate a corresponding beam pattern in different application scenarios, so that the satellite antenna system can meet the communication requirements in multiple scenarios.

[0011] In one possible implementation, in a scenario where the mobile terminal implements satellite data online service through the satellite antenna system, for example, in a scenario where the mobile terminal browses webpage, watches network video, or plays network game through the satellite antenna system, in order to ensure the transmission rate of the satellite data service, the gain requirement of the first satellite antenna for the directional diagram of the satellite antenna system is higher, and thus the first satellite antenna works in the first mode to make the satellite antenna system generate the first beam directional diagram. For example, in a scenario where the mobile terminal implements at least one of satellite short message and satellite telephone through the satellite antenna system, in order to ensure the timely sending and receiving of the satellite short message and reduce the requirement of the satellite telephone for the user's pose, the coverage range of the directional diagram beam of the satellite antenna system is required to be wider, and thus the first satellite antenna works in the second mode to make the satellite antenna system generate the second beam directional diagram. Thus, the satellite antenna system can generate corresponding beam directional diagrams in different application scenarios to meet the communication requirements in multiple scenarios.

[0012] Since the satellite data service that can be implemented by the mobile terminal through the satellite antenna system includes high-rate data service and low-rate data service, the high-rate data service may, for example, include browsing webpage, watching network video, video call, or playing network game, and the low-rate data service may, for example, include sending text or voice message through chat software. In one possible implementation, in a scenario where the mobile terminal implements high-rate service through the satellite antenna system, the first satellite antenna works in the first mode, and the satellite antenna system generates the first beam directional diagram to meet the requirement for communication rate in this scenario. In addition, in a scenario where the mobile terminal implements low-rate service through the satellite antenna system, the first satellite antenna works in the second mode, and the satellite antenna system generates the second beam directional diagram to improve the timeliness of message sending and receiving. Thus, the satellite antenna system can generate corresponding beam directional diagrams in different application scenarios to meet the communication requirements in multiple scenarios.

[0013] The present application does not limit the specific setting form of the mobile terminal. For example, in one possible implementation, the mobile terminal is a foldable mobile terminal, that is, the mobile terminal is a two-fold or multi-fold mobile terminal. In this case, the mode switching of the first satellite antenna can be used to meet the communication requirements of the mobile terminal in different folded states. For example, when the mobile terminal is in a first folded state, the first satellite antenna works in the first mode to make the satellite antenna system generate the first beam directional diagram, so that the mobile terminal can meet the communication requirements in a scenario where the gain requirement is higher, for example, the mobile terminal can be used to implement a paging scenario through the satellite antenna system.

[0014] In addition, the mobile terminal also has a second folding state, wherein the first folding state is different from the second folding state. Then when the mobile terminal is in the second folding state, the first satellite antenna works in the second mode, so that the satellite antenna system can generate a directional pattern of the second beam, thereby enabling the mobile terminal to meet the communication requirements in a scenario with higher requirements for beam width, for example, the mobile terminal can be used to implement a paging scenario through the satellite antenna system.

[0015] In the present application, in order to be able to switch the first mode and the second mode of the first satellite antenna through the first switch, the present application provides the following implementation manners:

[0016] In one possible implementation manner, the first main radiator includes a first sub-radiator, the first switch is connected with a connection point of the first sub-radiator, when the first satellite antenna works in the first mode, the first main radiator is coupled with the floor through the first branch of the first switch. And when the first satellite antenna works in the second mode, the first sub-radiator is coupled with the floor through the second branch of the first switch. In the present application, the different branches of the first switch can be understood as a plurality of branches with different capacitance values and / or inductance values, and then the switching between the different branches of the first switch can realize the switching of the working mode of the first satellite antenna, so as to form the corresponding directional pattern.

[0017] In another possible implementation manner, the first main radiator includes a first sub-radiator, the first satellite antenna further includes a first satellite radio frequency link, and the satellite communication chip is configured to feed a radio frequency signal to the first sub-radiator through the first satellite radio frequency link. In this way, when the first satellite antenna works in the first mode, the first switch controls the first port of the satellite communication chip to be coupled with the first connection point of the first sub-radiator through the first satellite radio frequency link. And when the first satellite antenna works in the second mode, the first switch controls the first port of the satellite communication chip to be coupled with the second connection point of the first sub-radiator through the first satellite radio frequency link. By using this scheme, the switching of the working mode of the first satellite antenna can be realized by changing the position of the feed point of the first sub-radiator, so as to achieve the purpose of changing the directional pattern.

[0018] In another possible implementation, the first main radiator includes a first sub-radiator and a second sub-radiator, and the first sub-radiator is spaced apart from the second sub-radiator or the first sub-radiator is connected to the second sub-radiator through a grounding member. In addition, the first switch is connected to a first connection point of the first sub-radiator and a third connection point of the second sub-radiator. In this way, when the first satellite antenna operates in the first mode, the first port of the satellite communication chip is coupled to the first connection point of the first sub-radiator through a first branch of the first switch. When the first satellite antenna operates in the second mode, the first port of the satellite communication chip is coupled to the third connection point of the second sub-radiator through a second branch of the first switch. In this scheme, the first sub-radiator and the second sub-radiator of the first satellite antenna can be switched through the first switch, which can also be understood as switching the length and position of the first satellite antenna, so as to switch the operating mode of the first satellite antenna, thereby forming a corresponding directional pattern.

[0019] In another possible implementation, the first main radiator also includes a first sub-radiator and a second sub-radiator which are spaced apart, and the first switch is coupled between the first main radiator and the second sub-radiator. In this way, when the first satellite antenna operates in the first mode, the first sub-radiator and the second sub-radiator are coupled through a first branch of the first switch. When the first satellite antenna operates in the second mode, the first sub-radiator and the second sub-radiator are coupled through a second branch of the first switch. In this way, the equivalent capacitance / inductance of the first sub-radiator and the second sub-radiator can be switched through the first switch, so that the distribution of current on the first sub-radiator and the second sub-radiator changes, so that the directional pattern of the first satellite antenna changes accordingly.

[0020] In the present application, in addition to the above-mentioned use of the first switch to change the operating mode of the first satellite antenna, there are other possible ways to achieve directional pattern switching. For example, in one possible implementation, the satellite antenna system further includes a first parasitic radiator and a first tuning circuit, and the first parasitic radiator is coupled to the first tuning circuit. In this way, when the first satellite antenna operates, the first parasitic radiator and the first tuning circuit and the first main radiator are used to jointly generate the first beam directional pattern and / or the second beam directional pattern of the satellite antenna system. In this scheme, the first parasitic radiator can be used to load the first main radiator in different ways, which can cause different effects on the operating mode of the first main radiator, so that the satellite antenna system can form a corresponding directional pattern.

[0021] In one specific implementation, when the first satellite antenna operates in the first mode, the first parasitic radiator is coupled to the floor through a first branch of the first tuning circuit, so that the first parasitic radiator is used to generate a first resonance. In one possible implementation, a resonance point frequency of the first resonance falls outside a communication frequency band of the first satellite antenna, which is beneficial to improve the gain of the first satellite antenna, thereby being beneficial to the satellite antenna system to generate the first beam pattern.

[0022] When the first satellite antenna operates in the second mode, the first parasitic radiator is coupled to the floor through a second branch of the first tuning circuit. At this time, the first parasitic radiator can be used to generate a second resonance, and a resonance point frequency of the second resonance falls within the communication frequency band of the first satellite antenna, which is beneficial to improve the beam width generated by the first satellite antenna, thereby being beneficial to the satellite antenna system to generate the second beam pattern.

[0023] The present application does not limit the specific arrangement position of each radiator. For example, in one possible implementation, along the length direction of the moving shield, the first main radiator and the first parasitic radiator are both located in the top region of the mobile terminal. In this way, it is convenient to realize the satellite pointing of the satellite antenna system, thereby ensuring the satellite communication performance of the mobile terminal.

[0024] In the present application, the first satellite antenna is used to cover a first frequency band when operating in the first mode, and is used to cover a second frequency band when operating in the second mode. Both the first frequency band and the second frequency band include a transmission frequency band of the satellite antenna system, or both include a reception frequency band of the satellite antenna system. That is, when the first satellite antenna operates in different modes, the communication requirements between the first satellite antenna and the communication satellite can be met.

[0025] In one possible implementation of the present application, the satellite antenna system further includes a second satellite antenna. The second satellite antenna includes a second main radiator and a second satellite radio frequency link. The second port of the satellite communication chip is coupled to the second main radiator through the second satellite radio frequency link. In the present application, the first satellite antenna and the second satellite antenna are both used to cover the transmission frequency band of the satellite antenna system, or are both used to cover the reception frequency band of the satellite antenna system. In this way, the complementarity between the first satellite antenna and the second satellite antenna can be utilized, so that the first satellite antenna and the second satellite antenna are used to jointly generate the first beam pattern and / or the second beam pattern of the satellite antenna system, which is beneficial to improve the gain and diversity of the beam pattern of the satellite antenna system.

[0026] In addition, the satellite antenna system can further include a third satellite antenna and a fourth satellite antenna. The third satellite antenna includes a third main radiator and a third satellite radio frequency link, and a third port of the satellite communication chip is coupled to the third main radiator through the third satellite radio frequency link. The fourth satellite antenna includes a fourth main radiator and a fourth satellite radio frequency link, and a fourth port of the satellite communication chip is coupled to the fourth main radiator through the fourth satellite radio frequency link. In the present application, the first satellite antenna, the second satellite antenna, the third satellite antenna, and the fourth satellite antenna can be used to cover the transmission frequency band of the satellite antenna system, or can be used to cover the receiving frequency band of the satellite antenna system. In this way, the first satellite antenna, the second satellite antenna, the third satellite antenna, and the fourth satellite antenna can be used to jointly generate the first beam pattern and / or the second beam pattern of the satellite antenna system, so as to improve the gain and diversity of the beam pattern of the satellite antenna system.

[0027] In a possible implementation of the present application, the mobile terminal includes a bezel arranged around the circumference of the mobile terminal, and the bezel includes a plurality of bezel edges connected end to end. The first main radiator, the second main radiator, the third main radiator, and the fourth main radiator are distributed on at least three bezel edges. In this way, the beam width of the beam pattern generated by the satellite antenna system can be expanded.

[0028] In a possible implementation of the present application, when the mobile terminal includes four satellite antennas, the ratio of the average upper half-sphere gain to the average lower half-sphere gain of the second beam pattern generated by the satellite antenna system is a first ratio a. In addition, when the satellite antenna system generates the first beam pattern, the ratio of the average upper half-sphere gain to the average lower half-sphere gain of the first beam pattern is a second ratio b. The first ratio a is less than the second ratio b, and for example, the ratio (b-a) is greater than or equal to 10% of b. In this way, the gain of the first beam pattern generated by the satellite antenna system can be improved.

[0029] In a second aspect, the present application also provides a mobile terminal, which comprises a satellite antenna system, the satellite antenna system comprising a satellite communication chip and a first satellite antenna, the first satellite antenna comprising a first main radiator and a first switch coupled to the first main radiator, the first switch being configured to switch the first satellite antenna to a first mode or a second mode. In the present application, when the first satellite antenna operates in the first mode, the satellite antenna system generates a high-gain beam pattern. When the first satellite antenna operates in the second mode, the satellite antenna system generates a second beam pattern. The average value G1 of the circular polarization gain within a range of ±15° of the maximum value of the upper hemisphere gain of the high-gain beam pattern and the average value G2 of the circular polarization gain within a range of ±15° of the maximum value of the upper hemisphere gain of the second beam pattern satisfy the following condition: (G1-G2)≥1dB. The design scheme of the satellite antenna system of the mobile terminal provided by the present application can switch the first satellite antenna between the first mode and the second mode according to the specific communication requirement in the actual application scenario, so that the satellite antenna system generates a corresponding beam pattern to meet different communication requirements.

[0030] In a third aspect, the present application also provides a mobile terminal, which comprises a satellite antenna system, the satellite antenna system comprising a satellite communication chip and a first satellite antenna, the first satellite antenna comprising a first main radiator and a first switch coupled to the first main radiator, the first switch being configured to switch the first satellite antenna to a first mode or a second mode. In the present application, when the first satellite antenna operates in the first mode, the satellite antenna system generates a first beam pattern. When the first satellite antenna operates in the second mode, the satellite antenna system generates a wide beam pattern. Within a threshold of the circular polarization gain, the beam width d1 of the wide beam pattern and the beam width d2 of the first beam pattern satisfy the following condition: (d1-d2)≥20%×d2. The design scheme of the satellite antenna system of the mobile terminal provided by the present application can switch the first satellite antenna between the first mode and the second mode, so that the satellite antenna system generates a corresponding beam pattern to meet different communication requirements.

[0031] In the present application, when the satellite antenna system is in a transmitting state, the threshold of the circular polarization gain is the difference between the equivalent isotropically radiated power of the satellite antenna system and the transmission power of the radio frequency. The transmission power of the radio frequency of the satellite antenna system can be measured at the radio frequency seat, i.e., between the satellite communication chip and the radio frequency front end.

[0032] In addition, when the satellite antenna system is in a receiving state, the threshold of the circular polarization gain is the difference between the radiation receiving sensitivity of the satellite antenna system and the conduction sensitivity of the radio frequency. The conduction sensitivity of the radio frequency of the satellite antenna system can also be measured at the radio frequency seat.

[0033] In a fourth aspect, the present application provides a method for switching a beam pattern of a satellite antenna of a mobile terminal, the satellite antenna system comprising a satellite communication chip and a first satellite antenna coupled to the satellite communication chip, the first satellite antenna comprising a first main radiator and a first switch coupled to the first main radiator, wherein the method comprises:

[0034] controlling the satellite antenna system to generate a first beam pattern when the first satellite antenna is switched to a first mode of operation by the first switch;

[0035] controlling the satellite antenna system to generate a second beam pattern when the first satellite antenna is switched to a second mode of operation by the first switch, wherein the first beam pattern has a higher gain than the second beam pattern, and the second beam pattern has a wider beam width than the first beam pattern.

[0036] The method for switching a beam pattern of a satellite antenna of a mobile terminal provided by the present application can switch the first satellite antenna between the first mode and the second mode by using the first switch according to actual communication requirements, so that the satellite antenna system generates a corresponding beam pattern, thereby enabling the satellite antenna system to meet different communication requirements.

[0037] In a possible implementation of the present application, the method can further comprise:

[0038] the mobile terminal switches the first satellite antenna to the first mode of operation by the first switch in a satellite pointing scenario or a service scenario by using the satellite antenna system; or

[0039] the mobile terminal switches the first satellite antenna to the second mode of operation by the first switch in a paging scenario by using the satellite antenna system.

[0040] In this way, the satellite antenna system can generate a corresponding beam pattern in a satellite pointing scenario or a service scenario, or a paging scenario, thereby enabling the satellite antenna system to meet communication requirements in multiple scenarios.

[0041] In another possible implementation of the present application, the method can further comprise:

[0042] the mobile terminal switches the first satellite antenna to the first mode of operation by the first switch in a scenario of a satellite data surfing service by using the satellite antenna system; or

[0043] the mobile terminal switches the first satellite antenna to the second mode of operation by the first switch in a scenario of a satellite short message service or a satellite telephone service by using the satellite antenna system.

[0044] In this way, the satellite antenna system can generate a corresponding beam direction pattern in the scenarios of satellite data service and satellite short message service or satellite telephone service, so as to meet the communication requirements in multiple scenarios.

[0045] In another possible implementation of the present application, the method can further include:

[0046] In the scenario of implementing high-rate service by the satellite antenna system, the first satellite antenna is switched to the first mode of operation by the first switch; or,

[0047] In the scenario of implementing low-rate service by the satellite antenna system, the first satellite antenna is switched to the second mode of operation by the first switch.

[0048] In this way, the satellite antenna system can generate a corresponding beam direction pattern in the scenarios of high-rate service and low-rate service, so as to meet the communication requirements in multiple scenarios.

[0049] The present application does not limit the specific form of the mobile terminal, and in a possible implementation of the present application, the mobile terminal is a foldable mobile terminal; the method further includes:

[0050] When the mobile terminal is in the first folded state, the first satellite antenna is switched to the first mode of operation by the first switch;

[0051] When the mobile terminal is in the second folded state, the first satellite antenna is switched to the second mode of operation by the first switch.

[0052] In this way, the mode of the first satellite antenna can be switched to meet the communication requirements of the mobile terminal in different folded states. BRIEF DESCRIPTION OF DRAWINGS

[0053] FIG. 1 is a schematic diagram of satellite communication of a mobile terminal according to an embodiment of the present application;

[0054] FIGS. 2a to 2d are schematic diagrams of beam direction patterns in satellite communication of a mobile terminal in several application scenarios according to an embodiment of the present application;

[0055] FIG. 3 is a schematic diagram of a structure of a mobile terminal according to an embodiment of the present application;

[0056] FIG. 4a is a schematic diagram of a structure of a satellite antenna system of a mobile terminal according to an embodiment of the present application;

[0057] FIG. 4b is a schematic diagram of a structure of a satellite antenna system of a mobile terminal according to an embodiment of the present application;

[0058] FIGS. 5a to 5e are diagrams illustrating radiation patterns of several common antennas according to embodiments of the present application;

[0059] FIG. 6a is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0060] FIG. 6b is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0061] FIG. 7a is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0062] FIG. 7b is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0063] FIG. 8 is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0064] FIG. 9a is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0065] FIG. 9b is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0066] FIG. 10a is a diagram illustrating a structure of a satellite antenna system of a foldable mobile terminal according to embodiments of the present application;

[0067] FIG. 10b is a diagram illustrating a structure of a satellite antenna system of a foldable mobile terminal according to embodiments of the present application;

[0068] FIG. 11a is a diagram illustrating another structure of a satellite antenna system of a foldable mobile terminal according to embodiments of the present application;

[0069] FIG. 11b is a diagram illustrating a structure of a satellite antenna system of a foldable mobile terminal according to embodiments of the present application, when the foldable mobile terminal is in a flat state;

[0070] FIG. 12a is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0071] FIG. 12b is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0072] FIG. 13a is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0073] FIG. 13b is a diagram illustrating another structure of a satellite antenna system of a mobile terminal according to embodiments of the present application;

[0074] Fig. 14a is another structural schematic diagram of a satellite antenna system of a mobile terminal according to an embodiment of the present application;

[0075] Fig. 14b is another structural schematic diagram of a satellite antenna system of a mobile terminal according to an embodiment of the present application;

[0076] Fig. 15a is another structural schematic diagram of a satellite antenna system of a foldable mobile terminal according to an embodiment of the present application;

[0077] Fig. 15b is another structural schematic diagram of a satellite antenna system of a foldable mobile terminal according to an embodiment of the present application;

[0078] Figs. 16a-16e are schematic diagrams of several possible structures of a foldable mobile terminal according to an embodiment of the present application.

[0079] Reference signs: 100 - cover plate; 200 - display screen / module; 300 - printed circuit board; 400 - middle frame; 500 - back cover; 600 - frame; 700 - first rotating shaft; 800 - first housing; 900 - second housing; 1000 - third housing; 1100 - second rotating shaft; 1 - satellite communication chip; 11 - first port; 12 - second port; 13 - third port; 14 - fourth port; 2 - first satellite antenna; 21 - first main radiator; 21a - first sub-radiator; 21b - second sub-radiator; 211 - first connecting point; 212 - second connecting point; 213 - third connecting point; 22 - first switch; 23 - first radio frequency front-end module; 3 - first parasitic radiator; 4 - first tuning circuit; 5 - second satellite antenna; 51 - second main radiator; 6 - third satellite antenna; 61 - third main radiator; 7 - fourth satellite antenna; 71 - fourth main radiator. DETAILED DESCRIPTION

[0080] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

[0081] The terms used in the following embodiments are only for the purpose of describing particular embodiments and are not intended to be limiting of the present application. As used in the specification and the appended claims, the singular forms "a," "an" and "the" are intended to include both singular and plural forms, unless the context clearly indicates otherwise.

[0082] Reference to "one embodiment" or "an embodiment" or "a specific embodiment" or "some embodiments" or "one specific embodiment" or "some specific embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in some embodiments" in various places in the specification are not necessarily all referring to the same embodiment.

[0083] In the following, terms that can appear in embodiments of the application are explained.

[0084] Radiating element: is a device in an antenna that is used to receive / transmit electromagnetic wave radiation. In some cases, "antenna" is understood in a narrow sense as a radiating element that converts guided wave energy from a transmitter into radio waves, or converts radio waves into guided wave energy for radiation and reception of radio waves. The modulated high frequency current energy (or guided wave energy) produced by the transmitter is transmitted along the feed line to the transmitting radiating element, which converts it to some polarized electromagnetic wave energy and radiates it in the desired direction. The receiving radiating element converts electromagnetic wave energy from some polarization in a specific direction from space into modulated high frequency current energy, which is delivered to the input of the receiver via the feed line.

[0085] Ground / ground plane: can refer to at least a portion of any ground layer, or ground plane, or ground metal layer, or any combination of the above in a mobile terminal (such as a mobile phone), or any ground layer, or ground plane, or ground component, or any combination of the above in a mobile terminal (such as a mobile phone), which can be used for grounding of components in the mobile terminal. In one embodiment, the ground / ground plane can include any one or more of the following: a ground layer of a circuit board of the mobile terminal, a ground plane formed by a middle frame of the mobile terminal, a ground metal layer formed by a metal film under the screen, a conductive ground layer of the battery, and a conductive or metal component electrically connected to the above ground layer / ground plane / metal layer. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12-14 layer board having 8, 10, 12, 13, or 14 layers of conductive material, or elements separated and electrically insulated by a dielectric or insulating layer such as fiberglass, polymer, etc.

[0086] Any ground layer, or ground plane, or ground metal layer described above can be made of a conductive material. In one embodiment, the conductive material can be any one of the following: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil on an insulating substrate, and tin-plated copper, graphite powder impregnated cloth, graphite-coated substrate, copper-plated substrate, brass-plated substrate, and aluminum-plated substrate. Those skilled in the art will understand that the ground layer / ground plane / ground metal layer can also be made of other conductive materials.

[0087] Radio frequency chip: is the combination of all components for the reception and transmission of radio frequency signals, which can be considered to include the radio frequency front end chip (RF front end) and the transceiver. In the case of a receiving antenna, the radio frequency chip can be considered as the antenna part from the first amplifier to the front transmitter. In a transmitting antenna, the radio frequency chip can be considered as the part after the last power amplifier. In some cases, the radio frequency chip can also be understood as a feed unit. Generally, it is considered as part of the antenna system for converting radio waves into electrical signals and vice versa. The antenna should be designed to consider the maximum power transmission possibility and efficiency. For this purpose, the antenna feed impedance must be matched to the load resistance. The antenna feed impedance is a combination of resistance, capacitance and inductance. To ensure maximum power transmission conditions, the two impedances (load resistance and feed impedance) should be matched. It can be done by considering the frequency requirements and design parameters of the antenna (such as gain, directivity and radiation efficiency).

[0088] Feed source / feed circuit, in some cases, the "feed circuit" is understood in a narrow sense as a radio frequency integrated circuit (RFIC). The feed circuit has the function of converting radio waves (for example, radio frequency signals) and electrical signals (for example, digital signals). Generally, it is considered as part of the radio frequency.

[0089] In some embodiments, the electronic device can also include a test seat (or also called a radio frequency seat or a radio frequency test seat). The test seat can be used to insert a coaxial cable to test the characteristics of the radio frequency front end circuit or the radiator of the antenna through the cable. The radio frequency front end circuit can be considered as the circuit part coupled between the test seat and the transceiver.

[0090] In some embodiments, the radio frequency front end circuit can be integrated into a radio frequency front end chip in the electronic device, or the radio frequency front end circuit and the transceiver can be integrated into a radio frequency chip in the electronic device.

[0091] It should be understood that any two of the first / second / … / Nth feed circuits in this application can share the same transceiver, for example, transmitting signals through one radio frequency channel (for example, one port (pin) of the radio frequency chip) in one transceiver; and can also share one radio frequency front end circuit, for example, processing signals through a switch or amplifier in one radio frequency front end.

[0092] It should also be understood that two of the first / second / … / Nth feed circuits in this application generally correspond to two radio frequency test seats in the electronic device.

[0093] Feed line: also called transmission line, refers to the connection line between the RF chip and the radiator of the antenna. Transmission line can directly transmit current wave or electromagnetic wave according to different frequencies and forms. The connection between the radiator and the transmission line is usually called the feed point. Transmission line includes wire transmission line, coaxial transmission line, waveguide, or microstrip line, etc. Transmission line can include support antenna body or glass antenna body according to different implementation forms. Transmission line can be realized by liquid crystal polymer (LCP), flexible printed circuit (FPC), or printed circuit board (PCB) according to different carriers.

[0094] Resonant frequency: resonant frequency is also called resonance frequency. Resonant frequency can have a frequency range, that is, the frequency range of resonance. The resonant frequency can be the frequency range where the return loss characteristic is less than -6dB. The strongest point of resonance can be called the resonance point, and the frequency corresponding to the resonance point is the center frequency point frequency. The return loss characteristic of the center frequency can be less than -20dB. It should be understood that if not otherwise specified, the antenna / radiator mentioned in this application produces "first / second… resonance", where the first resonance should be the fundamental mode resonance produced by the antenna / radiator, or in other words, the lowest frequency resonance produced by the antenna / radiator. It should be understood that the antenna / radiator can produce one or more antenna modes according to the specific design, and each antenna mode can correspond to a fundamental mode resonance.

[0095] Resonant frequency band: the range of resonant frequency is the resonant frequency band, and the return loss characteristic of any frequency point in the resonant frequency band can be less than -6dB or -5dB.

[0096] Communication frequency band / working frequency band: no matter what type of antenna, it always works in a certain frequency range (bandwidth). For example, an antenna that supports B40 frequency band has a working frequency band that includes frequencies in the range of 2300MHz-2400MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band. The frequency range that meets the index requirements can be regarded as the working frequency band of the antenna. The width of the working frequency band is called the working bandwidth. The working bandwidth of an omnidirectional antenna can reach 3-5% of the center frequency. The working bandwidth of a directional antenna can reach 5-10% of the center frequency. The bandwidth can be considered as a range of frequencies on both sides of the center frequency (for example, the resonant frequency of a dipole), where the antenna characteristics are within the acceptable value range of the center frequency.

[0097] The resonant frequency band and the working frequency band can be the same or different, or their frequency ranges can partially overlap. In one embodiment, the resonant frequency band of an antenna can cover multiple working frequency bands of the antenna.

[0098] Antenna pattern: also called radiation pattern. It refers to the relative field strength (normalized modulus) of the antenna radiation field at a certain distance from the antenna changes with the direction of the pattern, usually represented by two mutually perpendicular plane patterns through the maximum radiation direction of the antenna.

[0099] Antenna pattern usually has multiple radiation beams. The radiation beam with the maximum radiation intensity is called the main lobe, and the remaining radiation beams are called side lobes or side lobes. In the side lobe, the side lobe in the opposite direction of the main lobe is also called the back lobe.

[0100] Radiation efficiency: refers to the ratio of the power radiated by the antenna into space (i.e. the power effectively converted into electromagnetic waves) to the active power input to the antenna. Among them, the active power input to the antenna = the input power of the antenna - the loss power; The loss power mainly includes the return loss power and the ohmic loss power of the metal and / or the dielectric loss power. Metal loss, dielectric loss are the influencing factors of radiation efficiency.

[0101] Those skilled in the art can understand that the radiation efficiency is generally expressed in percentage, and there is a corresponding conversion relationship between it and dB, the closer the radiation efficiency is to 0dB, the better the radiation efficiency of the antenna is represented.

[0102] dB: that is, decibel, a logarithmic concept with a base of ten. Decibel is only used to evaluate the ratio between one physical quantity and another physical quantity, and it itself has no physical dimension. The ratio between the two quantities increases by 10 times, and their difference can be expressed as 10 decibels. For example: A="100", B="10", C="5", D="1", then A / D=20dB; B / D=10dB; C / D=7dB; B / C=3dB. That is, the difference between two quantities is 10 decibels, which is 10 times the difference. The difference of 20 decibels is 100 times, and so on. The difference of 3dB is the difference between two quantities.

[0103] End: the "end" in the first end / second end / third end / fourth end / ground end / open end of the main radiator, which cannot be understood as a point or end physically disconnected from other radiators, but can also be considered as a section of the main radiator including the first end point, which is the end point of the main radiator at the gap. For example, the first end of the main radiator can be considered as a section of the main radiator within one-eighth of the first wavelength range from the first end point, where the first wavelength can be the wavelength corresponding to the operating frequency band of the main radiator, can be the wavelength corresponding to the center frequency of the operating frequency band, or the wavelength corresponding to the resonance point. In an embodiment, the "end / point" can include the connection / coupling area of the radiator coupled to other conductive structures, for example, the feed end / point can be the coupling area (for example, the area facing a part of the feed structure) of the antenna radiator coupled to the feed structure, and for example, the ground end / point can be the connection / coupling area of the antenna radiator coupled to the ground structure.

[0104] Open end and closed end: In some embodiments, the open end and the closed end are, for example, relative to whether it is grounded, the closed end is grounded, and the open end is not grounded. In an embodiment, the open end can also be referred to as a suspended end, a free end, an open end, or an open circuit end. In an embodiment, the closed end can also be referred to as a ground end or a short circuit end. It should be understood that in some embodiments, other conductors can be coupled through the open end to transfer coupled energy (which can be understood as transferring current).

[0105] In some embodiments, the open end and the closed end are, for example, relative to other conductive bodies, the closed end is electrically connected to other conductive bodies, and the open end is not electrically connected to other conductive bodies.

[0106] In some embodiments, the "open end" of the radiator can be simply understood as: one end of the radiator is spaced apart from the ground plane or coupled to the ground plane through a capacitive device, which can be considered as the open end of the radiator.

[0107] In some embodiments, the "ground end" of the radiator can be simply understood as: one end of the radiator is directly connected to the ground plane or coupled to the ground plane through an inductive device, which can be considered as the ground end of the radiator.

[0108] In some embodiments, the understanding of the "closed end" can also be from the current distribution, and the closed end or the ground end can be understood as a large current point on the radiator or a small electric field point on the radiator; in an embodiment, coupling electronic devices (such as inductive devices) through the closed end can not change the current distribution characteristics of the large current point / small electric field point; in an embodiment, opening a slot (such as a gap filled with insulating material) at or near the closed end can not change the current distribution characteristics of the large current point / small electric field point.

[0109] In some embodiments, the understanding of "open end" can also be from the perspective of current distribution, and the open end or floating end, etc. can be understood as a small current point on the radiator, and can also be understood as a large electric field point on the radiator. In an embodiment, coupling an electronic device (for example, a capacitive device, etc.) through the open end can not change the current distribution characteristics of the small current point / large electric field point.

[0110] It should be understood that coupling an electronic device (for example, a capacitor, an inductor, etc.) at the radiator end of a gap (from the structure of the radiator, similar to the radiator at the opening of the open end or floating end) can make the radiator end a large current point / small electric field point. In this case, it should be understood that the radiator end at the gap is actually a closed end or a grounded end, etc.

[0111] Capacitor: can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance includes components that are capacitive, such as a capacitor element; distributed capacitance (or distributed capacitance) includes an equivalent capacitor formed by two conductive parts spaced apart by a gap.

[0112] Coupling: in this application, it can be understood as indirect coupling, and "coupling connection" can be understood as indirect coupling connection. "Indirect coupling" can be understood as electrical conduction between two conductors through space / without contact. In an embodiment, indirect coupling can also be referred to as capacitive coupling, for example, signal transmission is achieved by coupling between the gap between two conductive parts to form an equivalent capacitor.

[0113] In order to facilitate the understanding of the mobile terminal provided by the embodiments of the present application, the application scenario thereof will be introduced first as follows.

[0114] FIG. 1 is a schematic diagram of satellite communication of a mobile terminal according to an embodiment of the present application. As shown in FIG. 1, the satellite communication belongs to non terrestrial network (NTN) communication and can be used for communication with the mobile terminal. Compared with ground communication, the satellite communication can provide wider coverage. In particular, for areas where the layout of cellular communication base stations is less or difficult to cover, the satellite communication can be used. According to the orbital height of the satellite, the satellite communication system can be divided into three types: geostationary earth orbit (GEO) satellite communication system (also referred to as synchronous orbit communication satellite), medium earth orbit (MEO) satellite communication system and low earth orbit (LEO) satellite communication system. The GEO satellite has an orbital height of 35786 km. The main advantage of the GEO satellite is that it can remain relatively stationary on the ground and provide a large coverage area. The MEO satellite has an orbital height of 2000-35786 km. The advantage of the MEO satellite is that global coverage can be achieved by a relatively small number of satellites. Based on the advantages and disadvantages of the MEO satellite communication, the MEO satellite is currently mainly used for positioning and navigation. The LEO satellite has an orbital height of 300-2000 km. The LEO satellite has a lower orbital height than the MEO and GEO satellites. The LEO satellite has the advantages of small data propagation delay, small transmission loss and relatively low transmission cost.

[0115] In order to realize communication with the communication satellite, the mobile terminal is provided with a satellite antenna. However, the signal beam of the satellite antenna has a certain directivity. However, in general, the design of the directivity diagram of the same satellite antenna has limitations. For example, if the beam width is large, it is difficult to design a high gain, and if the gain is designed to be high, it is difficult to improve the beam width. We find that in the application scenario of short message, voice and other low-rate signal transmission shown in FIG. 2a, the gain requirement of the satellite antenna is relatively low. At this time, the directivity diagram of the satellite antenna can be designed as a wide beam to improve the satellite experience. For example, in the application scenario of data surfing and other high-rate signal transmission shown in FIG. 2b, the gain requirement of the satellite antenna is high. At this time, the directivity diagram of the satellite antenna is designed as a high-gain beam to improve the communication rate. For example, in the satellite paging scenario shown in FIG. 2c, by designing the directivity diagram of the satellite antenna as a 360° omnidirectional coverage beam, it is helpful to call the phone without dead angle. In the satellite scene shown in FIG. 2d, by designing the directivity diagram of the satellite antenna as a high-gain beam, it is helpful to improve the communication performance and user experience.

[0116] Therefore, the present application provides a mobile terminal to realize optimization of communication performance by dynamic switching of the directivity diagram beam of the satellite antenna system, thereby improving the use experience of satellite communication of the mobile terminal.

[0117] FIG. 3 illustrates a structural schematic diagram of a mobile terminal according to an embodiment of the present application. In this embodiment, the mobile terminal is exemplified by a mobile phone. As shown in FIG. 3, in one embodiment, the mobile terminal includes a cover 100, a display 200, a printed circuit board (PCB) 300, a middle frame 400, and a rear cover 500. It should be understood that in some embodiments, the cover 100 can be a cover glass, and can be replaced by a cover made of other materials, such as a cover made of ultra-thin glass material, a cover made of polyethylene terephthalate (PET) material, etc. In one embodiment, the cover 100, the display 200, the middle frame 400, and the rear cover 500 can all be considered as a housing.

[0118] The cover 100 can be arranged close to the display 200, and can be mainly used to protect and prevent dust from the display 200.

[0119] In one embodiment, the display 200 can include a liquid crystal display (LCD), a light emitting diode (LED) display panel, or an organic light-emitting diode (OLED) display panel, etc. The present application does not limit this.

[0120] The middle frame 400 mainly serves as a support for the whole machine. In FIG. 3, the PCB 300 is arranged between the middle frame 400 and the rear cover 500. It should be understood that in one embodiment, the PCB 300 can also be arranged between the middle frame 400 and the display 200, and the present application does not limit this. The PCB 300 can be made of a flame-retardant material (FR-4) medium plate, a Rogers medium plate, a hybrid medium plate of Rogers and FR-4, etc. Here, FR-4 is a code of a flame-retardant material grade, and the Rogers medium plate is a high-frequency plate. The PCB 300 carries electronic components, such as a radio frequency chip, etc.

[0121] In one embodiment, a metal layer can be disposed on the PCB 300. The metal layer can be used for grounding of electronic components carried on the PCB 300, and can also be used for grounding of other components, such as a bracket antenna, a bezel antenna, and the like. The metal layer can be referred to as a ground plate, or a grounding plate, or a grounding layer. In one embodiment, the metal layer can be formed by etching metal on a surface of any one of the medium plates in the PCB 300. In one embodiment, the metal layer for grounding can be disposed on the PCB 300 close to one side of the middle frame 400. In one embodiment, the edge of the printed circuit board PCB 300 can be regarded as the edge of its grounding layer. In one embodiment, the metal middle frame 400 can also be used for grounding of the above-mentioned components. The mobile terminal can also have other ground plates / grounding plates / grounding layers, as described above, and details are not repeated here.

[0122] The mobile terminal can also include a battery (not shown in FIG. 3). The battery can be disposed between the middle frame 400 and the back cover 500, or can be disposed between the middle frame 400 and the display screen 200, and the present application does not limit this. In some embodiments, the PCB 300 is divided into a main board and a sub-board, and the battery can be disposed between the main board and the sub-board, wherein the main board can be disposed between the upper edge of the middle frame 400 and the battery, and the sub-board can be disposed between the lower edge of the middle frame 400 and the battery.

[0123] The mobile terminal can also include a bezel 600, which can be formed of a conductive material such as metal. The bezel 600 can be disposed between the display screen 200 and the back cover 500 and extend circumferentially around the periphery of the mobile terminal. The bezel 600 can have four side edges surrounding the display screen 200, and help to fix the display screen 200. In one implementation, the bezel 600 made of metal material can be directly used as a metal bezel of the mobile terminal, forming a metal bezel appearance, which is suitable for metal industrial design (ID). In another implementation, the outer surface of the bezel 600 can also be a non-metal material, such as a plastic bezel, forming a non-metal bezel appearance, which is suitable for non-metal ID.

[0124] The middle frame 400 can include a bezel 600, and the middle frame 400 including the bezel 600 can support electronic devices in the entire mobile terminal as a single piece. The cover plate 100 and the back cover 500 are coupled to the upper and lower edges of the bezel 600, respectively, to form a housing of the mobile terminal. Alternatively, the bezel 600 can not be considered as a part of the middle frame 400. In an embodiment, the bezel 600 can be coupled to the middle frame 400 and formed as a single piece. In another embodiment, the bezel 600 can include a protrusion extending inward to be coupled to the middle frame 400, for example, by a spring, a screw, welding, or the like. In an embodiment, the cover plate 100, the back cover 500, the bezel 600, and the middle frame 400 can be collectively referred to as a housing of the mobile terminal. It should be understood that the "housing" can refer to a part or all of any one of the cover plate 100, the back cover 500, the bezel 600, or the middle frame 400, or a part or all of any combination thereof.

[0125] The back cover 500 can be a back cover made of a metal material, a back cover made of a non-conductive material such as a glass back cover or a plastic back cover, or a back cover including both a conductive material and a non-conductive material.

[0126] In an embodiment, the bezel 600 can at least partially function as a radiator to transmit / receive radio frequency signals. The portion of the bezel 600 functioning as the radiator can have a gap with other portions of the middle frame 400 or with the middle frame 400, thereby ensuring a good radiation environment for the radiator. In an embodiment, an aperture can be provided near the portion of the bezel 600 functioning as the radiator. In an embodiment, the aperture can include an aperture provided inside the mobile terminal, for example, an aperture that is not visible from the appearance of the mobile terminal. In an embodiment, the aperture inside can be formed by any one of or a plurality of the middle frame 400, the battery, the PCB 300, the back cover 500, the display 200, and other internal conductive members, for example, the aperture inside can be formed by a structural member of the middle frame 400. In an embodiment, the aperture can further include a slit / gap / opening provided on the bezel 600. In an embodiment, the slit / gap / opening on the bezel 600 can be a slit formed on the bezel 600, and the bezel 600 can be divided into two portions at the slit without a direct connection therebetween. In an embodiment, the aperture can further include a slit / gap / opening provided on the back cover 500 or the display 200. In an embodiment, the back cover 500 includes a conductive material, and the aperture provided at the conductive material can be in communication with the slit or the slit of the bezel to form a continuous aperture on the appearance of the mobile terminal.

[0127] In one embodiment, the radiators of the mobile terminal can also be disposed within the bezel 600. The bezel 600 comprises a non-conductive material, and the radiators of the antenna can be disposed within the mobile terminal and extend along the bezel 600, or the radiators can be at least partially embedded within the non-conductive material of the bezel. In one embodiment, the radiators are disposed against the non-conductive material of the bezel 600 to minimize the volume occupied by the radiators and to be closer to the exterior of the mobile terminal for better signal transmission. It should be noted that the radiators disposed against the bezel 600 means that the radiators can be disposed against the bezel 600 or can be disposed close to the bezel 600, for example, the radiators and the bezel 600 can have a small gap therebetween.

[0128] In one embodiment, the radiators of the mobile terminal can also be disposed within the housing, for example, disposed within a bracket antenna on the circuit board (not shown in FIG. 1). The radiators disposed within the housing can have a gap between the radiators and other conductive components inside the housing to ensure that the radiators have a good radiation environment. In one embodiment, an aperture can be disposed near the radiators. In one embodiment, the aperture can comprise an aperture disposed inside the mobile terminal, for example, an aperture that is not visible from the appearance surface of the mobile terminal. In one embodiment, the aperture inside can be formed by any one of or a plurality of the bezel 600, the middle frame 400, the battery, the PCB 300, the back cover 500, the display screen 200, and other internal conductive components, for example, the aperture inside can be formed by a structural member of the middle frame 400. In one embodiment, the aperture can also comprise a gap / slit / opening disposed on the bezel 600. In one embodiment, the gap / slit / opening on the bezel 600 can be a break formed on the bezel 600, and the bezel 600 is divided into two parts at the break that are not directly connected. In one embodiment, the aperture can also comprise a gap / slit / opening disposed on the back cover 500 or the display screen 200. In one embodiment, the back cover 500 comprises a conductive material, and the aperture disposed at the conductive material can be in communication with the slit or break of the bezel to form a continuous aperture on the appearance surface of the mobile terminal. In one embodiment, the aperture on the back cover 500 or the display screen can also be used to place other devices, for example, a camera, and / or a sensor, and / or a microphone, and / or a speaker, and the like.

[0129] In one embodiment, the antenna can be in the form of a flexible printed circuit (FPC) based antenna, a laser-direct-structuring (LDS) based antenna, a microstrip disk antenna (MDA), or the like. In one embodiment, the antenna can also be in the form of a transparent or semi-transparent structure embedded in the screen of the mobile terminal, such that the antenna is a transparent antenna unit embedded in the screen of the mobile terminal.

[0130] FIG. 3 schematically shows some components of the mobile terminal, and the actual shape, actual size, and actual structure of the components are not limited by FIG. 3.

[0131] It should be understood that, in the embodiments of the present application, the face on which the display screen of the mobile terminal is located can be considered as a front face, the face on which the back cover is located can be considered as a back face, and the face on which the frame is located can be considered as a side face.

[0132] It should be understood that, in the embodiments of the present application, when a user holds (usually vertically and faces the screen) the mobile terminal, the orientation of the mobile terminal has a top, a bottom, and sides.

[0133] The mobile terminal in the embodiments of the present application can have various options, for example, can include any mobile terminal such as a bar phone, a foldable mobile terminal, a multi-fold mobile phone, a tablet computer, or a smart screen.

[0134] The mobile terminal in the embodiments of the present application includes a satellite antenna system. FIG. 4a is a schematic diagram of a structure of a satellite antenna system of a mobile terminal according to an embodiment of the present application. The satellite antenna system is used to receive / send electromagnetic waves. Specifically, the satellite antenna system is used to receive electromagnetic waves from a communication satellite or send electromagnetic waves to the communication satellite. The satellite antenna system is used to transmit electromagnetic waves between the satellite antenna system and the communication satellite, so as to realize the satellite communication function of the mobile terminal. In the present application, the mobile terminal can be used to realize at least one of satellite short message, satellite telephone, satellite paging, and satellite Internet access through a satellite communication chip.

[0135] As shown in FIG. 4a, in the present application, the satellite antenna system includes a satellite communication chip 1 and a first satellite antenna 2. The first satellite antenna 2 includes a first main radiator 21 and a first switch 22 coupled to the first main radiator 21. The first satellite antenna 2 can work in at least two modes, for example, can work in a first mode and a second mode. It can be understood that the first satellite antenna 2 works in different modes usually forms different directional patterns. Based on this, the directional pattern of the entire satellite antenna system can be switched by switching the working mode of the first satellite antenna 2, so as to meet different satellite communication requirements.

[0136] In the present application, the first switch 22 can be used to switch the first satellite antenna 2 to work in the first mode or the second mode, so that the satellite antenna system can generate two different directional patterns respectively. For example, when the first satellite antenna 2 works in the first mode, the satellite antenna system generates a first beam directional pattern as shown in FIG. 4a. And when the first satellite antenna 2 works in the second mode, the satellite antenna system generates a second beam directional pattern as shown in FIG. 4b.

[0137] Wherein, the gain of the first beam directional pattern is higher than the gain of the second beam directional pattern; the beam width of the second beam directional pattern is greater than the beam width of the first beam directional pattern. Wherein, the gain of the first beam directional pattern is higher than the gain of the second beam directional pattern, which can be understood as that the first beam directional pattern is a high-gain beam directional pattern relative to the second beam directional pattern, which can be used to meet the communication requirements in a scenario with higher gain requirements. And the beam width of the second beam directional pattern is greater than the beam width of the first beam directional pattern, which can be understood as that the second beam directional pattern is a wide-beam directional pattern relative to the first beam directional pattern, which can be used to meet the communication requirements in a scenario with higher beam width requirements.

[0138] In one possible embodiment of the present application, the average value G1 of the circular polarization gain within the range of ±15° of the maximum value of the upper hemisphere gain of the high-gain beam directional pattern, and the average value G2 of the circular polarization gain within the range of ±15° of the maximum value of the upper hemisphere gain of the wide-beam directional pattern, satisfy: (G1-G2)≥1dB. In actual applications, (G1-G2) can be approximately 1.1dB, 1.3dB or 1.5dB, etc. In some possible embodiments, (G1-G2) can also be≥2dB, or (G1-G2)≥3dB, which can be approximately 3dB, 4dB or 5dB, etc. In this way, the first switch 22 can be used to switch the first satellite antenna 2 between the first mode and the second mode according to actual communication requirements, so that the satellite antenna system can generate corresponding directional patterns to meet different communication requirements.

[0139] In one possible embodiment of the present application, within the threshold of the circular polarization gain, the beam width d1 of the wide-beam directional pattern and the beam width d2 of the high-gain beam directional pattern satisfy: (d1-d2)≥20%×d2, for example, (d1-d2)=25%×d2. In some possible embodiments, (d1-d2) can also be≥30%×d2 or (d1-d2)≥40%×d2. In this way, the satellite antenna system can generate a wide-beam directional pattern with a wider coverage range.

[0140] It is worth mentioning that in the present application, when the satellite antenna system is in the transmitting state, the threshold of the circular polarization gain is the difference between the equivalent isotropic radiated power of the satellite antenna system and the transmitting power of the radio frequency. The transmitting power of the radio frequency of the satellite antenna system can be measured between the radio frequency seat, that is, the satellite communication chip and the radio frequency front end.

[0141] In addition, when the satellite antenna system is in the receiving state, the threshold of the circular polarization gain is the difference between the radiation receiving sensitivity of the satellite antenna system and the conduction sensitivity of the radio frequency. The conduction sensitivity of the radio frequency of the satellite antenna system can also be measured at the radio frequency seat.

[0142] In order to facilitate the understanding of the design principle that the satellite antenna system of the mobile terminal provided in the present application can switch the directional diagram according to the change of the communication scene, the following will be explained by taking the first beam directional diagram as the high-gain beam directional diagram and the second beam directional diagram as the wide-beam directional diagram as an example. In one possible embodiment, the mobile terminal realizes the satellite access scene or the service scene through the satellite antenna system. In this embodiment, the satellite access scene can be understood as the process of establishing a connection between the mobile terminal and the communication satellite, and the service scene can be understood as the process of data transmission after the connection with the satellite is established. At this time, in order to ensure the accuracy of satellite access or to ensure the transmission rate of satellite data service, the gain requirement of the directional diagram of the satellite antenna system is high, and at this time the first satellite antenna 2 can be switched to the first mode of operation through the first switch 22, so as to control the satellite antenna system to generate a high-gain beam directional diagram.

[0143] In addition, in the scene of realizing paging through the satellite antenna system, such as the scene of calling in the wild, at this time it is hoped that the telephone can be connected without dead angle in all directions, and at this time the requirement of the coverage range of the directional diagram beam of the satellite antenna system is high, and at this time the first satellite antenna 2 can be switched to the second mode of operation through the first switch 22, so as to control the satellite antenna system to generate a wide-beam directional diagram.

[0144] In another possible embodiment, in the scene of realizing satellite data Internet service through the satellite antenna system, such as the scene of browsing web pages, watching network videos or playing network games through the satellite antenna system, in order to ensure the transmission rate of satellite data Internet service, the gain requirement of the directional diagram of the satellite antenna system is high, and at this time the first satellite antenna 2 can be switched to the first mode of operation through the first switch 22, so as to control the satellite antenna system to generate a high-gain beam directional diagram.

[0145] For example, in the scenario that the mobile terminal implements at least one of satellite short message and satellite telephone through the satellite antenna system, in order to ensure the timely sending and receiving of the satellite short message and reduce the requirement of the satellite telephone on the user's pose, the coverage range of the directional pattern beam of the satellite antenna system is required to be wide, at this time, the first satellite antenna 2 can be switched to the second mode of operation through the first switch 22, so as to control the satellite antenna system to generate a wide-beam directional pattern.

[0146] Since the satellite data service that can be implemented by the mobile terminal through the satellite antenna system further includes high-rate data service and low-rate data service, wherein the high-rate data service and the low-rate service are relative, it should be understood that the satellite data service can further include super-high-speed data service, etc., as long as it is a different data service scenario, the higher rate service can be understood as the high-rate service, and the lower rate service can be understood as the low-rate service. In a specific embodiment, the high-rate data service can include, for example, browsing web pages, watching network videos, video calls, or playing network games, etc., and the low-rate data service can include, for example, sending text or voice messages by using chat software, etc.

[0147] In another possible embodiment, in the scenario that the mobile terminal implements high-rate service through the satellite antenna system, the first satellite antenna 2 can be controlled to operate in the first mode through the first switch 22, so as to control the satellite antenna system to generate a high-gain beam directional pattern to meet the requirement of communication rate in this scenario. In addition, in the scenario that the mobile terminal implements low-rate service through the satellite antenna system, the first satellite antenna 2 can be controlled to operate in the second mode through the first switch 22, so as to control the satellite antenna system to generate a wide-beam directional pattern to improve the timeliness of message sending and receiving.

[0148] It can be understood that in the present application, the first satellite antenna 2 is used to cover the first frequency band when operating in the first mode, and the first satellite antenna is used to cover the second frequency band when operating in the second mode. Wherein, the first frequency band and the second frequency band both include the transmission frequency band of the satellite antenna system, or both include the receiving frequency band of the satellite antenna system. That is, when the first satellite antenna 2 operates in different modes, it meets the communication requirement between the first satellite antenna 2 and the communication satellite.

[0149] In actual application, the user can issue specific use instructions to the mobile terminal, so that the first switch 22 can switch the first mode and the second mode of the first satellite antenna 2 according to specific communication requirements. For example, in the scenario where the user uses the mobile terminal to surf the Internet, since the gain requirement of the satellite antenna system is high, the first switch 22 can switch the first satellite antenna 2 to work in the first mode, so that the satellite antenna system can generate a high-gain beam pattern to meet the user's high-speed Internet access requirement. For another example, in the scenario where the user uses the mobile terminal to make a satellite call, send a satellite message or make a satellite phone, the first switch 22 can switch the first satellite antenna 2 to work in the second mode, so that the satellite antenna system can generate a wide-beam pattern, which is helpful for calling or sending a satellite message without dead angle.

[0150] After understanding the design principle of the satellite antenna system provided in the present application, the specific setting mode of the satellite antenna system will be introduced in combination with some specific embodiments.

[0151] As can be understood from the above introduction, the pattern is one of the main factors affecting the communication connection speed and connection stability of the satellite antenna system, so analyzing the factors affecting the pattern is beneficial to improving the communication performance of the mobile terminal in different scenarios. There are many factors affecting the pattern, for example, referring to FIGS. 4a and 4b, in this embodiment, the first main radiator 21 includes a first sub-radiator 21a, and the connection point of the first switch 22 is connected with the first sub-radiator 21a, wherein when the first satellite antenna 2 works in the first mode, the first sub-radiator 21a is coupled with the floor through the first branch of the first switch 22. In addition, when the first satellite antenna 2 works in the second mode, the first sub-radiator 21a is coupled with the floor through the second branch of the first switch 22.

[0152] It is worth mentioning that in the present application, the different branches of the first switch 22 can be understood as multiple branches with different capacitance values and / or inductance values, which can include the case that the path between the first sub-radiator 21a and the floor is turned on or turned off.

[0153] Therefore, in this embodiment, the switching of the different branches of the first switch 22 can realize the switching of the working mode of the first satellite antenna 2, so as to form a corresponding pattern.

[0154] For example, referring to FIGS. 5a to 5e, FIGS. 5a to 5e are schematic diagrams of patterns of several common antennas provided in the embodiments of the present application. In FIGS. 5a to 5e, the radiator is arranged on the top of the mobile terminal as an example to exemplarily show the pattern of the antenna.

[0155] The antennas shown in FIGS. 5a-5e all include a main radiator, and the arrow points to the position of the feed point (or connection point) of the main radiator. In the antennas shown in FIGS. 5a and 5e, the main radiator is open at one end and grounded at the other end, but the positions of the feed points are different. In addition, compared with the antenna shown in FIG. 5a, the antennas shown in FIGS. 5b and 5c have a parasitic radiator added at different positions, respectively, and the parasitic radiator is coupled to the control switch to control whether the resonance generated by the parasitic radiator is loaded to the main radiator through the control switch. It is worth mentioning that FIGS. 5b and 5c show the directional diagram formed by the main radiator and the parasitic radiator when the control switch is in the first state, that is, when the resonance generated by the parasitic radiator is loaded to the main radiator. In addition, in the antenna shown in FIG. 5d, both ends of the main radiator are open, and the parasitic radiator is similar to that in the antenna shown in FIG. 5c.

[0156] It can be seen by comparison that the position of the feed point (for example, the feed point changes from the position shown in FIG. 5a to the position shown in FIG. 5e), the loading of the parasitic radiator (FIGS. 5b and 5c compared with FIG. 5a), the setting position of the parasitic radiator (FIGS. 5b and 5c compared), and the aperture size of the radiator (the number, length, etc. of the radiators) all affect the directional diagram of the antenna.

[0157] Based on this, first refer to FIG. 6a, which is another structural schematic diagram of a satellite antenna system of a mobile terminal provided by an embodiment of the present application. In the present application, the first satellite antenna 2 can also include a first satellite radio frequency link, and the satellite communication chip 1 can be used to feed radio frequency signals to the first sub-radiator 21a through the first satellite radio frequency link. The present application does not limit the specific setting form of the first satellite radio frequency link, which can exemplarily include a first radio frequency front-end module 23, and the first radio frequency front-end module 23 can include a power amplifier and a low noise amplifier (LNA) to enable the first sub-radiator 21a to transmit signals to a communication satellite and also receive radio frequency signals from the communication satellite. In other possible embodiments, the first satellite radio frequency link can also adopt other possible setting manners, for example, by adjusting the setting manner of the first radio frequency front-end module 23 to enable the first sub-radiator 21a to be used only for transmitting signals to a communication satellite or only for receiving radio frequency signals from a communication satellite, and the like, which are not enumerated here, but should be understood as falling within the protection scope of the present application.

[0158] In a possible embodiment of the present application, when the first satellite antenna 2 works in the first mode, as shown in FIG. 6a, the first switch (not shown in FIG. 6a) controls the first port of the satellite communication chip 1 to be coupled with the first connection point 211 of the first sub-radiator 21a through the first satellite radio frequency link, so that the satellite antenna system generates a high-gain beam pattern, thereby meeting the communication requirements in scenarios such as satellite short message, satellite call, webpage browsing, network video watching, video call or network game playing. When the first satellite antenna 2 works in the second mode, referring to the satellite antenna system shown in FIG. 6b, the first switch controls the first port of the satellite communication chip 1 to be coupled with the second connection point 212 of the first sub-radiator 21a through the first satellite radio frequency link, so that the satellite antenna system generates a wide beam pattern, thereby meeting the communication requirements in scenarios such as paging, satellite pointing, satellite short message and satellite call. That is, in the embodiments shown in FIG. 6a and FIG. 6b, the switching of the feeding points of the first sub-radiator 21a can be realized by the first switch, so that the working mode of the first satellite antenna 2 can be switched, thereby forming a corresponding beam pattern.

[0159] It is worth mentioning that in the present application, the same port of the satellite communication chip 1 is used to receive / transmit the same radio frequency signal, so as to form a receiving / transmitting antenna. For example, in the embodiments shown in FIG. 6a and FIG. 6b, the devices between the first port 11 of the satellite communication chip 1 and the first sub-radiator 21a collectively form the first satellite antenna 2.

[0160] FIG. 7a is another structure schematic diagram of the satellite antenna system of the mobile terminal provided by the embodiments of the present application. Different from the above-mentioned embodiments, in the satellite antenna system shown in FIG. 7a, the first main radiator 21 further includes a second sub-radiator 21b. Since the mobile terminal includes a bezel arranged around the circumference of the mobile terminal, and the bezel includes a plurality of frame edges connected in a head-to-tail manner. In the present application, the first sub-radiator 21a and the second sub-radiator 21b can be arranged on different frame edges of the bezel of the mobile terminal, for example, in the embodiment shown in FIG. 7a, the first sub-radiator 21a is arranged on the frame edge of the top of the mobile terminal, and the second sub-radiator 21b is arranged on a side frame edge adjacent to the frame edge of the top. In other possible embodiments of the present application, the first sub-radiator 21a and the second sub-radiator 21b can also be arranged on the same frame edge. The present application does not limit the specific arrangement positions of the first sub-radiator 21a and the second sub-radiator 21b.

[0161] In addition, in the embodiment shown in FIG. 7a, the first sub-radiator 21a and the second sub-radiator 21b are arranged in a spaced manner, that is, there is a gap between the first sub-radiator 21a and the second sub-radiator 21b, and the first switch 22 can be arranged across the gap and connected to the first connection point 211 of the first sub-radiator 21a and the third connection point 213 of the second sub-radiator 21b at the same time. In this way, when the first satellite antenna 2 works in the first mode, as shown in FIG. 7a, the first port 11 of the satellite communication chip 1 can be coupled to the first connection point 211 of the first sub-radiator 21a through the first branch of the first switch 22, so that the satellite antenna system generates a high-gain beam pattern, thereby meeting the communication requirements in scenarios such as satellite short message, satellite call, webpage browsing, network video watching, video call or network game playing. When the first satellite antenna 2 works in the second mode, as shown in the satellite antenna system in FIG. 7b, the first port 11 of the satellite communication chip 1 can be coupled to the third connection point 213 of the second sub-radiator 21b through the second branch of the first switch 22, so that the satellite antenna system generates a wide beam pattern, thereby meeting the communication requirements in scenarios such as paging, pointing to the satellite, satellite short message and satellite call. That is, in this embodiment, the switching of the first sub-radiator 21a and the second sub-radiator 21b of the first main-radiator 21 of the first satellite antenna 2 can be realized through the first switch 22, which can also be understood as the switching of the length and the arrangement position of the first main-radiator 21 of the first satellite antenna 2, so as to realize the switching of the working mode of the first satellite antenna 2, thereby forming a corresponding beam pattern.

[0162] It is worth mentioning that, in the present application, in addition to the spaced arrangement of the first sub-radiator 21a and the second sub-radiator 21b as shown in FIG. 7a, in a possible embodiment, the first sub-radiator 21a and the second sub-radiator 21b can also be connected through a grounding member, and in this embodiment, the specific arrangement manner of the first sub-radiator 21a and the second sub-radiator 21b is not limited. In addition, the first switch 22 can include one or more switch units, or can be one switch chip, or a plurality of separate switch chips, and the specific arrangement form of the first switch 22 is not limited in the present application.

[0163] In addition, in the embodiments shown in FIG. 7a and FIG. 7b, at least one of the first sub-radiator 21a and the second sub-radiator 21b is used to receive the radio frequency signal of the communication satellite, and at least one is used to transmit the signal to the communication satellite. For example, the first sub-radiator 21a and the second sub-radiator 21b are both used to receive the radio frequency signal of the communication satellite, and one of the first sub-radiator 21a and the second sub-radiator 21b is used to transmit the signal to the communication satellite. Various possible combinations are not listed one by one here, but they should all be understood as falling within the protection scope of the present application.

[0164] Figure 8 is another structure of the satellite antenna system of the mobile terminal according to the embodiment of the present application. Different from the embodiments shown in Figures 7a and 7b, in the embodiment shown in Figure 8, when the first satellite antenna 2 works in the first mode, the first sub-radiator 21a and the second sub-radiator 21b are coupled through the first switch 22 to make the satellite antenna system generate a high-gain beam pattern, so as to meet the communication requirements in the scenarios of satellite short message, satellite call, webpage browsing, network video watching, video call or network game playing. When the first satellite antenna 2 works in the second mode, the first sub-radiator 21a and the second sub-radiator 21b are coupled through the second branch of the first switch 22 to make the satellite antenna system generate a wide beam pattern, so as to meet the communication requirements in the scenarios of paging, pointing to the satellite, satellite short message or satellite call. In this way, the equivalent capacitance / inductance of the first sub-radiator 21a and the second sub-radiator 21b can be switched through the first switch 22, so that the distribution of the current on the first sub-radiator 21a and the second sub-radiator 21b changes, and the pattern formed by the first satellite antenna 2 changes accordingly.

[0165] It can be understood that, in the embodiment shown in Figure 8, the first sub-radiator 21a and the second sub-radiator 21b are coupled through the first branch of the first switch 22, which can make the circuit of the first sub-radiator 21a and the second sub-radiator 21b conduct through the first branch of the first switch 22; and the first sub-radiator 21a and the second sub-radiator 21b are coupled through the second branch of the first switch 22, which can also make the first sub-radiator 21a and the second sub-radiator 21b decoupled. The present application does not make a specific limitation thereon, as long as the purpose of switching the equivalent capacitance / inductance of the first sub-radiator 21a and the second sub-radiator 21b through the first switch 22 can be achieved.

[0166] It is worth mentioning that, in the present application, the specific setting form of each radiator is not limited, which can be a radiator with one end grounded and the other end open, or a radiator with both ends open; can be a continuously arranged radiator, or a radiator including multiple sections arranged at intervals.

[0167] From the introduction of the factors of changing the pattern, it can be known that the working mode of the satellite antenna can also be adjusted by setting the parasitic radiator. In implementation, referring to FIG. 9a, FIG. 9a is another structural schematic diagram of the satellite antenna system of the mobile terminal provided in the embodiment of the present application. In the embodiment, the satellite antenna system further includes a first parasitic radiator 3 and a first tuning circuit 4, wherein the first parasitic radiator 3 is coupled with the first tuning circuit 4. In the present application, the first tuning circuit 4 can be used to adjust the resonant mode of the first parasitic radiator 3. Since the first parasitic radiator 3 has different influences on the current distribution of the first main radiator 21 when it is loaded to the first main radiator 21 in different resonant modes, the satellite antenna system can form corresponding patterns. Based on this, it can be understood that, in the present application, when the first satellite antenna 2 works, the first parasitic radiator 3 and the first tuning circuit 4 and the first main radiator 21 can be used to jointly generate the first beam pattern or the second beam pattern of the satellite antenna system.

[0168] It is worth mentioning that, in actual application, different antennas work independently, but when they are all used to cover the same receiving frequency band or transmitting frequency band, the patterns generated by different antennas can be superimposed, which can also be understood as taking the union of the patterns generated by each antenna. In the present application, the two radiators "jointly generate" the pattern of the satellite antenna system, which can be understood as the pattern generated when at least one of the two radiators works, for example, the pattern generated when the two radiators work simultaneously to produce a superposition effect, or the pattern generated when one of the radiators works.

[0169] In implementation, in one possible embodiment of the present application, when the first satellite antenna 2 works in the first mode, as shown in FIG. 9a, the first parasitic radiator 3 is coupled with the floor through the first branch of the first tuning circuit 4, so as to make the satellite antenna system generate a high-gain beam pattern, thereby meeting the communication requirements in scenarios such as satellite short message, satellite call, browsing webpage, watching network video, video call or playing network game. When the first satellite antenna 2 works in the second mode, referring to the satellite antenna system shown in FIG. 9b, the first parasitic radiator 3 is coupled with the floor through the second branch of the first tuning circuit 4, so as to make the satellite antenna system generate a wide beam pattern, thereby meeting the communication requirements in scenarios such as paging, pointing to the satellite, satellite short message and satellite call.

[0170] It is worth mentioning that in the present application, the different branches of the first tuning circuit 4 can be understood as a plurality of branches with different capacitance values and / or inductance values, which can include the case that the passage between the first main radiator 21 and the ground is conducted or disconnected. In this way, the influence of the first parasitic radiator 3 on the current distribution of the first main radiator 21 can be changed by switching between different branches of the first tuning circuit 4, thereby forming a corresponding directional pattern to meet different communication requirements. In addition, the first parasitic radiator 3 can be a radiator of a non-satellite antenna, so that the first parasitic radiator 3 can be multiplexed between different antenna systems to improve the utilization rate of the first parasitic radiator 3.

[0171] In practical applications, when the first satellite antenna 2 works in the first mode, the first parasitic radiator 3 is used to generate a first resonance, and the resonance point frequency of the first resonance falls outside the communication frequency band of the first satellite antenna 2, which is beneficial to improve the gain of the first satellite antenna 2, thereby facilitating the satellite antenna system to generate a high-gain beam directional pattern. In addition, when the first satellite antenna 2 works in the second mode, the first parasitic radiator 3 is used to generate a second resonance, and the resonance point frequency of the second resonance falls within the communication frequency band of the first satellite antenna 2, which is beneficial to improve the width of the beam generated by the first satellite antenna 2, thereby facilitating the satellite antenna system to generate a wide-beam directional pattern.

[0172] Since in the present application, the mobile terminal can be a straight phone as shown in FIGS. 9a and 9b, for which the direction from the top to the bottom is the length direction. In order to ensure the communication effect of the satellite antenna system, in the present application, along the length direction of the mobile terminal, the first main radiator 21 and the first parasitic radiator 3 can be located in the top region of the mobile terminal, or in other words, when the mobile terminal is in the usual holding posture, located in the upper 1 / 2 region of the length direction of the mobile terminal. In order to realize the pointing of the satellite antenna system.

[0173] In the above embodiments, the mobile terminal is taken as a straight mobile terminal, and the possible setting modes of the satellite antenna system are exemplarily described. In some other embodiments, the mobile terminal can also be a foldable mobile terminal, but the setting mode of the satellite antenna system in the foldable mobile terminal is similar to that in the straight mobile terminal. For example, referring to FIG. 10a, FIG. 10a is a structural schematic diagram of a satellite antenna system of a foldable mobile terminal according to an embodiment of the present application. In the embodiment shown in FIG. 10a, the first satellite antenna 2 includes a first main radiator 21, and the satellite antenna system further includes a first parasitic radiator 3. In addition, in the embodiment, the foldable mobile terminal is in a flat state, and since the foldable mobile terminal includes a first housing 800 and a second housing 900 connected by a first rotating shaft 700, in the embodiment shown in FIG. 10a, the first main radiator 21 can be arranged on the top of the first housing 800, and the first parasitic radiator 3 can be arranged on the top of the second housing 900, that is, the first main radiator 21 and the first parasitic radiator 3 can be arranged in two different housings of the foldable mobile terminal. It can be understood that the specific setting modes of the first main radiator 21 and the first parasitic radiator 3 in the foldable mobile terminal can be referred to the above embodiments, and will not be described herein.

[0174] In addition, when the first satellite antenna 2 works in the first mode, as shown in FIG. 10a, the satellite antenna system of the foldable mobile terminal can generate a high-gain beam pattern as shown in FIG. 10a, so that the satellite antenna system generates a high-gain beam pattern, thereby meeting the communication requirements in scenarios such as satellite short message, satellite call, browsing webpage, watching network video, video call or network game. When the first satellite antenna 2 works in the second mode, referring to the satellite antenna system shown in FIG. 10b, the satellite antenna system of the foldable mobile terminal can generate a wide beam pattern, so that the satellite antenna system generates a wide beam pattern, thereby meeting the communication requirements in scenarios such as paging, pointing to the satellite, satellite short message and satellite call.

[0175] In the embodiments shown in FIG. 10a and FIG. 10b, the beam pattern of the satellite antenna system of the foldable mobile terminal can be switched according to the communication requirements in the flat state, so as to meet the satellite communication requirements of the user. In some practical application scenarios, the foldable mobile terminal can also be capable of satellite communication in the closed state through reasonable design. For example, FIG. 11a is another structural schematic diagram of a satellite antenna system of a foldable mobile terminal according to an embodiment of the present application. In the embodiment shown in FIG. 11a, the foldable mobile terminal is in a closed state, and at this time, the first satellite antenna 2 can be switched to the second mode of work by using the first switch 22, so as to make the satellite antenna system generate a wide beam pattern.

[0176] In addition, referring to FIG. 11b, which is a structural schematic diagram of the satellite antenna system when the foldable mobile terminal shown in FIG. 11a is in the unfolded state. Since the floor area of the foldable mobile terminal is larger in the unfolded state shown in FIG. 11b than in FIG. 11a, the traveling wave antenna principle can be used to switch the first satellite antenna 2 to the first mode of operation by using the first switch 22, so that the gain of the directivity diagram generated by the satellite antenna system is improved, which can meet the communication requirements in the scenarios of satellite data network services such as browsing the web, watching network videos, video calls, or playing network games.

[0177] Based on this, it can be understood that in actual application, the user can use the foldable mobile terminal in the closed state to perform some satellite communication with relatively low gain requirements, such as satellite calls, sending or receiving satellite messages, and the like. When the user needs to perform some satellite data network services with high gain requirements, such as browsing the web, watching network videos, video calls, or playing network games, the mobile terminal can remind the user to unfold the foldable mobile terminal for use through the display interface, so as to meet the high-speed satellite communication requirements.

[0178] Since the foldable mobile terminal can include one or more intermediate hovering states in addition to the closed state and the unfolded state, in one possible embodiment of the present application, when the foldable mobile terminal is in the intermediate folded state, the first satellite antenna 2 can either work in the first mode to generate the first beam directivity diagram, or work in the second mode to generate the second beam directivity diagram. This can be designed according to actual communication requirements to meet the satellite communication requirements of the mobile terminal in the intermediate hovering state.

[0179] It is worth mentioning that the above embodiments are only some exemplary descriptions of possible setting modes of the satellite antenna system when the mobile terminal is a foldable mobile terminal. In other embodiments of the present application, the foldable mobile terminal can have a first folded state and a second folded state, wherein the first folded state and the second folded state can each include an unfolded state, a closed state, and an intermediate hovering state, but the first folded state is different from the second folded state. In addition, it is worth mentioning that when the intermediate hovering state of the foldable mobile terminal is multiple, the first folded state and the second folded state can be different intermediate hovering states. When the mobile terminal is in the first folded state, the first satellite antenna works in the first mode; and when the mobile terminal is in the second folded state, the first satellite antenna works in the second mode.

[0180] In the above embodiments, the satellite antenna system is taken as an example including the first satellite antenna 2. It can be understood that when the satellite antenna system includes multiple satellite antennas, the complementarity between the multiple satellite antennas can be used to improve the directivity diagram of the satellite antenna system, thereby improving the communication performance of the satellite antenna system.

[0181] In implementation, referring to FIG. 12a, FIG. 12a is another structural schematic diagram of the satellite antenna system of the mobile terminal according to an embodiment of the present application. In this embodiment, the satellite antenna system is still described by taking the mobile terminal as a straight phone. In the embodiment shown in FIG. 12a, the satellite antenna system comprises a second satellite antenna 5 in addition to the first satellite antenna 2. The first satellite antenna 2 can be arranged according to any of the above embodiments, and thus is not described herein.

[0182] In the arrangement of the second satellite antenna 5, the second satellite antenna 5 comprises a second main radiator 51 and a second satellite radio frequency link. The second port 12 of the satellite communication chip 1 is coupled to the second main radiator 51 through the second satellite radio frequency link. In the present application, the first satellite antenna 2 and the second satellite antenna 5 are both used to cover the transmitting frequency band of the satellite antenna system, or both are used to cover the receiving frequency band of the satellite antenna system. In this way, the first satellite antenna 2 and the second satellite antenna 5 can be used to jointly generate the first beam pattern and / or the second beam pattern of the satellite antenna system by using the complementarity between the directivity pattern of the first satellite antenna 2 and the directivity pattern of the second satellite antenna 5.

[0183] As shown in FIG. 12a, in the present application, the first main radiator 21 of the first satellite antenna 2 and the second main radiator 51 of the second satellite antenna 5 are both located at the top region of the mobile terminal along the length direction of the mobile terminal. In addition, at least part of the first main radiator 21 is located at the top of the mobile terminal, which is beneficial to the pointing of the satellite antenna system.

[0184] With reference to Fig. 12a, in this embodiment, the second main radiator 51 of the second satellite antenna 5 is arranged at one side frame edge adjacent to the top frame edge of the frame. In a possible embodiment, at least part of the first main radiator 21 and at least part of the second main radiator 51 can be arranged at the same frame edge, for example, at the top frame edge or the side frame edge. In this way, the distance between the second main radiator 51 and the first main radiator 21 can be small, which can make the first satellite antenna 2 and the second satellite antenna 5 have a large overlap area between the directional patterns. In this way, when the first satellite antenna 2 works in the first mode, as shown in Fig. 12a, the directional patterns of the first satellite antenna 2 and the second satellite antenna 5 can both be directed to the top direction, which is conducive to improving the gain of the high-gain beam directional pattern generated by the satellite antenna system to meet the communication requirements in scenarios such as satellite short message, satellite call, webpage browsing, network video watching, video call or network game playing. In addition, when the first satellite antenna 2 works in the second mode, as shown in the satellite antenna system in Fig. 12b, the directional patterns of the first satellite antenna 2 and the second satellite antenna 5 can jointly cover a larger range, which is conducive to expanding the width of the wide beam directional pattern generated by the satellite antenna system to meet the communication requirements in scenarios such as paging, pointing, satellite short message and satellite call.

[0185] It is worth mentioning that in this application, the second satellite antenna 5 can be arranged according to the introduction of the first satellite antenna 2 in any of the above embodiments. In short, the second satellite antenna 5 can also use a switch to achieve switchable working modes. For example, the switch can be used to change the resonant mode of the second main radiator 51, or change the feed point position of the second main radiator 51, or switch or couple multiple sub-radiators of the second main radiator 51, or set a parasitic radiator, etc. Details are not described here, but they should be understood as falling within the scope of the present application.

[0186] Fig. 13a is another structural schematic diagram of a satellite antenna system of a mobile terminal provided by an embodiment of the present application. Different from the satellite antenna system shown in Fig. 12a, in the embodiment shown in Fig. 13a, the satellite antenna system further includes a third satellite antenna 6, which includes a fourth radiator 61 and a third radio frequency chain, and the third port 13 of the satellite communication chip 1 is coupled with the fourth radiator 61 through the third satellite radio frequency chain. In this application, the working frequency band of the first satellite antenna 2, the working frequency band of the second satellite antenna 5 and the working frequency band of the third satellite antenna 6 all cover the first frequency band, that is, the first satellite antenna 2, the second satellite antenna 5 and the third satellite antenna 6 can be same-frequency antennas. In this way, the first satellite antenna 2, the second satellite antenna 5 and the third satellite antenna 6 can be used to jointly generate the directional pattern of the satellite antenna system by utilizing the complementarity between the first satellite antenna 2, the second satellite antenna 5 and the third satellite antenna 6.

[0187] As shown in FIG. 13a, in the present application, along the length direction of the mobile terminal, the first main radiator 21 of the first satellite antenna 2, the second main radiator 51 of the second satellite antenna 5 and the third main radiator 61 of the third satellite antenna 6 are all located on the side of the middle line of the mobile terminal close to the top. In addition, at least part of the first main radiator 21 is located on the top of the mobile terminal, which is beneficial to the pointing of the satellite antenna system.

[0188] Continuing to refer to FIG. 13a, in this embodiment, the second main radiator 51 of the second satellite antenna 5 and the third main radiator 61 of the third satellite antenna 6 are respectively arranged on the two side frame edges adjacent to the top frame edge of the frame. In this way, the spacing between the second main radiator 51, the third main radiator 61 and the first main radiator 21 is small, which can make the first satellite antenna 2, the second satellite antenna 5 and the third satellite antenna 6 have a large overlap area between the directional patterns. In this way, when the first satellite antenna 2 works in the first mode, as shown in FIG. 13a, the directional patterns of the first satellite antenna 2, the second satellite antenna 5 and the third satellite antenna 6 can all be directed to the top direction, which is beneficial to the improvement of the gain of the high-gain beam directional pattern generated by the satellite antenna system to meet the communication requirements in the scenarios of satellite short message, satellite call, web browsing, network video viewing, video call or network game playing. In addition, when the first satellite antenna 2 works in the second mode, as shown in the satellite antenna system in FIG. 13b, the directional patterns of the first satellite antenna 2, the second satellite antenna 5 and the third satellite antenna 6 can jointly cover a larger range, which is beneficial to the expansion of the width of the wide beam directional pattern generated by the satellite antenna system, and even can form a 360° omnidirectional coverage directional pattern to meet the communication requirements in the scenarios of paging, pointing, satellite short message and satellite call, and can effectively reduce the requirement for the pose of the satellite call, which is beneficial to improving the user experience.

[0189] It is worth mentioning that, in the present application, the third satellite antenna 6 can be arranged according to the above-mentioned introduction of the first satellite antenna 2 and the second satellite antenna 5 in any embodiment, and simply speaking, the third satellite antenna 6 can also use a switch to realize the switchable working mode. For example, the switch can be used to change the resonant mode of the third main radiator 61, or change the feed point position of the third main radiator 61, or switch the coupling mode of the multiple sub-radiators of the third main radiator 61, or set a parasitic radiator, etc., which will not be described in detail here, but should be understood as falling within the scope of the present application.

[0190] Further, referring to the structure diagram of the satellite antenna system of the mobile terminal shown in Fig. 14a, in the embodiment shown in Fig. 14a, the satellite antenna system further comprises a fourth satellite antenna 7, the fourth satellite antenna 7 comprises a fourth main radiator 71 and a fourth satellite radio frequency link, the fourth port 14 of the satellite communication chip 1 is coupled with the fourth main radiator 71 through the fourth satellite radio frequency link. In this embodiment, the first satellite antenna 2, the second satellite antenna 5, the third satellite antenna 6 and the fourth satellite antenna 7 are used to jointly generate the first beam pattern and / or the second beam pattern of the satellite antenna system.

[0191] In a possible embodiment of the present application, in the case that the mobile terminal comprises a plurality of satellite antennas, for example, three satellite antennas, four satellite antennas or more, when the satellite antenna system generates a wide beam pattern, the ratio of the average value of the upper hemisphere gain to the average value of the lower hemisphere gain of the wide beam pattern is a first ratio a. In addition, when the satellite antenna system generates a high gain pattern, the ratio of the average value of the upper hemisphere gain to the average value of the lower hemisphere gain of the high gain pattern is a second ratio b. Wherein the first ratio a is less than the second ratio b, for example, the first ratio a and the second ratio b satisfy: (b-a)≥10%×b. In this way, the gain of the high gain beam pattern generated by the satellite antenna system can be improved.

[0192] Continuing to refer to Fig. 14a, in this embodiment, the first main radiator 21 of the first satellite antenna 2 is located at the top frame edge of the mobile terminal, the second main radiator 51 of the second satellite antenna 5 and the third main radiator 61 of the third satellite antenna 6 are respectively located at two side frame edges of the mobile terminal, and the fourth main radiator 71 of the fourth satellite antenna 7 is located at the bottom frame edge of the mobile terminal. That is, the main radiators of the four satellite antennas are distributed at four different frame edges of the mobile terminal. In this way, when the first satellite antenna 2 works in the first mode, as shown in Fig. 14a, the patterns of the first satellite antenna 2, the second satellite antenna 5, the third satellite antenna 6 and the fourth satellite antenna 7 can all be towards the top direction, so that the gain of the high gain beam pattern generated by the satellite antenna system can be improved to meet the communication requirements in the scenarios of satellite short message, satellite call, browsing webpage, watching network video, video call or playing network game.

[0193] In addition, when the first satellite antenna works in the second mode, the directional patterns of the first satellite antenna 2, the second satellite antenna 5, the third satellite antenna 6 and the fourth satellite antenna 7 can jointly cover a larger range, which is beneficial to the expansion of the width of the directional pattern of the wide beam generated by the satellite antenna system, and even a 360° omnidirectional coverage directional pattern can be formed, in which case the satellite antenna system can be regarded as an omnidirectional antenna system. In this way, the difficulty of pointing to the satellite during use of the mobile terminal can be reduced, so that the mobile terminal can receive the radio frequency signals of the communication satellite in more poses, thereby being beneficial to improving the communication effect between the mobile terminal and the communication satellite, and enabling the mobile terminal to implement the paging function by using the communication satellite.

[0194] It is worth mentioning that the above embodiments are some exemplary descriptions of the possible setting positions of the main radiators of the plurality of satellite antennas, on the basis of which, the setting positions of the main radiators of the plurality of satellite antennas can be adaptively adjusted according to the use requirements in the actual application scenarios, and the number of satellite antennas can be increased or reduced according to actual design needs, which are not enumerated one by one herein, but should be understood as falling within the protection scope of the present application.

[0195] It can be understood that when the mobile terminal is a foldable mobile terminal, the satellite antenna system thereof can also include a plurality of satellite antennas, and the specific setting manner thereof is similar to that of the above straight machine. Briefly, referring to FIG. 15a, FIG. 15a is another structural schematic diagram of the satellite antenna system of the foldable mobile terminal provided in the embodiments of the present application. In this embodiment, taking the case that the satellite antenna system includes the first satellite antenna 2, the second satellite antenna 5, the third satellite antenna 6 and the fourth satellite antenna 7 as an example for description.

[0196] Continuing to refer to FIG. 15a, in this embodiment, along the axial direction of the first rotation shaft 700, the above four satellite antennas are located in the top region of the foldable mobile terminal. So that the spacing between the four satellite antennas is small, which is beneficial to the synthesis of the directional patterns of the satellite antennas.

[0197] In addition, in the embodiment shown in FIG. 15a, the first main radiator 21 of the first satellite antenna 2 is located at the top of the first housing 800, and the second main radiator 51 of the second satellite antenna 5 is located at the top of the second housing 900. The third main radiator 61 of the third satellite antenna 6 is located in the same housing as the first main radiator 21 of the first satellite antenna 2, and the third main radiator 61 is located at the side frame of the first housing 800 away from the first rotation shaft 700. The fourth main radiator 71 of the fourth satellite antenna 7 is located in the same housing as the second main radiator 51 of the second satellite antenna 5, and the fourth main radiator 71 is located at the side frame of the second housing 900 away from the first rotation shaft 700, that is, the first main radiator 21, the second main radiator 51, the third main radiator 61, and the fourth main radiator 71 are distributed on three different frame edges. In this way, the main radiators of the four satellite antennas can be arranged around the top area of the foldable mobile terminal. When the first satellite antenna 2 works in the first mode, as shown in FIG. 15a, the directional patterns of the first satellite antenna 2, the second satellite antenna 5, the third satellite antenna 6, and the fourth satellite antenna 7 can all be directed to the top direction, so that the gain of the high-gain beam pattern generated by the satellite antenna system can be improved to meet the communication requirements in scenarios such as satellite short message, satellite call, web browsing, network video viewing, video call, or network game playing. In addition, when the first satellite antenna 2 works in the second mode, as shown in the satellite antenna system in FIG. 15b, the directional patterns of the first satellite antenna 2, the second satellite antenna 5, the third satellite antenna 6, and the fourth satellite antenna 7 can jointly cover a larger range, for example, the area from the middle line to the top of the mobile terminal, which is beneficial to the expansion of the width of the wide beam pattern generated by the satellite antenna system, and even a 360° omnidirectional coverage pattern can be formed. This is beneficial to reducing the difficulty of pointing to the satellite during use of the mobile terminal, so that the mobile terminal can receive the radio frequency signal of the communication satellite in more poses, thereby improving the communication effect between the mobile terminal and the communication satellite, and enabling the mobile terminal to realize the paging function by using the communication satellite.

[0198] It is worth mentioning that FIGS. 15a and 15b are only an exemplary illustration of the satellite antenna system of the mobile terminal provided by the embodiments of the present application in the foldable mobile terminal. Based on the introduction of the above embodiments, the arrangement positions and the number of the satellite antennas of the satellite antenna system can be adaptively adjusted according to the requirements of the directional pattern in the actual application scenario. Here, they are not listed one by one, but they should be understood as falling within the protection scope of the present application.

[0199] In addition, in the above embodiments in which the mobile terminal is a foldable mobile terminal, the foldable mobile terminal is described as an example of a double-fold form, and when the foldable mobile terminal is a triple-fold or more form, the specific setting manner is similar. For example, referring to FIG. 16a, FIG. 16a is another structural schematic diagram of a foldable mobile terminal according to an embodiment of the present application. In this embodiment, the foldable mobile terminal is a triple-fold form, that is, the foldable mobile terminal includes a first housing 800, a second housing 900, a third housing 1000, a first rotating shaft 700, and a second rotating shaft 1100, wherein the first housing 800 and the second housing 900 are rotationally connected through the first rotating shaft 700, and the second housing 900 and the third housing 1000 are rotationally connected through the second rotating shaft 1100.

[0200] It can be understood that the setting manner of the satellite antenna system of the triple-fold form foldable mobile terminal shown in FIG. 16a is similar to that of the double-fold form foldable mobile terminal described above, and thus is not described herein.

[0201] In addition, in the embodiment shown in FIG. 16a, the foldable mobile terminal is in a flat state. In a possible embodiment of the present application, when the foldable mobile terminal is in the flat state shown in FIG. 16a, the first satellite antenna can work in a first mode, so that the satellite antenna system can generate a first beam pattern, thereby meeting the communication requirements in scenarios such as webpage browsing, network video watching, video calling, or network game playing.

[0202] FIG. 16b is a structural schematic diagram of the foldable mobile terminal shown in FIG. 16a in a closed state. At this time, the first satellite antenna can be used to work in a second mode, so that the satellite antenna system generates a second beam pattern, thereby meeting the communication requirements in scenarios such as paging, satellite calling, satellite short message sending and receiving, and satellite calling.

[0203] In actual application, when a user performs satellite data network service in the case that the foldable mobile terminal is in the closed state, as shown in FIG. 16b, the display interface of the foldable mobile terminal pops up prompt words such as “You can perform webpage browsing in the flat state” and pattern prompt information, so as to remind the user to perform satellite data network service in the flat state of the foldable mobile terminal. Conversely, when the user performs paging or transmits and receives satellite short message by using the foldable mobile terminal in the flat state, as shown in FIG. 16a, the display interface of the foldable mobile terminal pops up prompt words such as “You can perform satellite communication for paging in the closed state” and pattern prompt information, so as to remind the user that the call success probability of the foldable mobile terminal in the closed state is relatively high.

[0204] For the foldable mobile terminal of the three-fold form, it has more folding states. In the present application, the state of the foldable mobile terminal of the three-fold form in the completely folded state is referred to as the closed state, and the state of the foldable mobile terminal of the three-fold form in the completely unfolded state is referred to as the flat state, and other folding states are intermediate hovering states. In actual application, the intermediate hovering state of the foldable mobile terminal of the three-fold form can be, for example, the L-shaped folding state shown in FIG. 16c, or the Z-shaped folding state shown in FIG. 16d, or the folding state shown in FIG. 16e, etc. Then, the pattern of the satellite antenna system of the foldable mobile terminal can be designed to meet the same or different satellite communication requirements when the foldable mobile terminal is in different folding states, thereby improving the user experience. For example, in one possible embodiment, when the foldable mobile terminal is in the folding state shown in FIG. 16c, the first satellite antenna can work in the first mode, and then the satellite antenna system can be used to generate a first beam pattern, thereby meeting the communication requirements in a scenario with a higher gain requirement. In another possible embodiment, when the foldable mobile terminal is in the folding state shown in FIG. 16d, the first satellite antenna can work in the second mode, and then the satellite antenna system can be used to generate a second beam pattern, thereby meeting the communication requirements in a scenario with a higher beam width requirement. In another possible embodiment, when the foldable mobile terminal is in the folding state shown in FIG. 16e, the first satellite antenna can work in the second mode, and then the satellite antenna system can be used to generate a second beam pattern, thereby meeting the communication requirements in a scenario with a higher beam width requirement.

[0205] The above is only some exemplary descriptions of the satellite communication types that can be supported by the foldable mobile terminal provided in the present application in different folding states. On this basis, the pattern of the satellite antenna system can be designed according to actual communication requirements to optimize the performance of the satellite antenna system, thereby meeting the communication requirements in different scenarios.

[0206] It can be understood that when the mobile terminal is in a setting form of more than three folds, the specific setting mode of the satellite antenna system thereof is similar to that of the foldable mobile terminal of the three-fold form described above, which is not described herein, but it should be understood as falling within the protection scope of the present application.

[0207] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A mobile terminal, characterized by comprising: The satellite antenna system comprises a satellite communication chip and a first satellite antenna coupled with each other, wherein: The first satellite antenna comprises a first main radiator and a first switch coupled with the first main radiator, and the first switch is used for switching the first satellite antenna to work in a first mode or a second mode; When the first satellite antenna works in the first mode, the satellite antenna system generates a first beam pattern; when the first satellite antenna works in the second mode, the satellite antenna system generates a second beam pattern; wherein the gain of the first beam pattern is higher than the gain of the second beam pattern; and the beam width of the second beam pattern is greater than the beam width of the first beam pattern.

2. The mobile terminal of claim 1, wherein, In a satellite access scenario or a service scenario, the mobile terminal is used to realize the first satellite antenna working in the first mode through the satellite antenna system; or In a paging scenario, the mobile terminal is used to realize the first satellite antenna working in the second mode through the satellite antenna system.

3. The mobile terminal of claim 1, wherein, In a satellite data access service scenario, the mobile terminal is used to realize the first satellite antenna working in the first mode through the satellite antenna system; or In a satellite short message service or a satellite telephone service scenario, the mobile terminal is used to realize the first satellite antenna working in the second mode through the satellite antenna system.

4. The mobile terminal of claim 1, wherein, In a high-rate service scenario, the mobile terminal is used to realize the first satellite antenna working in the first mode through the satellite antenna system; or In a low-rate service scenario, the mobile terminal is used to realize the first satellite antenna working in the second mode through the satellite antenna system.

5. The mobile terminal according to any one of claims 1 to 4, characterized in that The mobile terminal is a foldable mobile terminal; when the mobile terminal is in a first folding state, the first satellite antenna works in the first mode; when the mobile terminal is in a second folding state, the first satellite antenna works in the second mode, wherein the first folding state is different from the second folding state.

6. The mobile terminal of claim 5, wherein: When the mobile terminal is in an unfolded state, the mobile terminal is used to realize a satellite access scenario or a service scenario through the satellite antenna system; when the mobile terminal is in a closed state, the mobile terminal is used to realize a paging scenario through the satellite antenna system.

7. The mobile terminal according to any one of claims 1 to 6, characterized in that The first main radiator comprises a first sub-radiator, a connection point of the first switch is connected with the first sub-radiator, when the first satellite antenna works in the first mode, the first sub-radiator is coupled with a floor through a first branch of the first switch; and when the first satellite antenna works in the second mode, the first sub-radiator is coupled with the floor through a second branch of the first switch.

8. The mobile terminal according to any one of claims 1 to 6, characterized by The first main radiator comprises a first sub-radiator, the first satellite antenna further comprises a first satellite radio frequency link, and the satellite communication chip is configured to feed radio frequency signals to the first sub-radiator through the first satellite radio frequency link; when the first satellite antenna operates in the first mode, the first switch controls the first port of the satellite communication chip to be coupled to a first connection point of the first sub-radiator through the first satellite radio frequency link; and when the satellite antenna system operates in the second mode, the first switch controls the first port of the satellite communication chip to be coupled to a second connection point of the first sub-radiator through the first satellite radio frequency link.

9. The mobile terminal according to any one of claims 1 to 6, characterized by The first main radiator comprises a first sub-radiator and a second sub-radiator, and the first sub-radiator is spaced apart from the second sub-radiator or connected to the second sub-radiator through a grounding member; the first switch is connected to a first connection point of the first sub-radiator and a third connection point of the second sub-radiator; When the first satellite antenna operates in the first mode, the first port of the satellite communication chip is coupled to the first connection point of the first sub-radiator through a first branch of the first switch; and when the first satellite antenna operates in the second mode, the first port of the satellite communication chip is coupled to the third connection point of the second sub-radiator through a second branch of the first switch.

10. The mobile terminal according to any one of claims 1 to 6, characterized by The first main radiator comprises a first sub-radiator and a second sub-radiator which are spaced apart; the first switch is coupled between the first sub-radiator and the second sub-radiator, and when the first satellite antenna operates in the first mode, the first sub-radiator and the second sub-radiator are coupled through a first branch of the first switch; and when the first satellite antenna operates in the second mode, the first sub-radiator and the second sub-radiator are coupled through a second branch of the first switch.

11. The mobile terminal according to any one of claims 1 to 10, characterized by The satellite antenna system further comprises a first parasitic radiator and a first tuning circuit, and the first parasitic radiator is coupled to the first tuning circuit; when the first satellite antenna operates, the first parasitic radiator and the first tuning circuit and the first main radiator are used to jointly generate the first beam pattern or the second beam pattern of the satellite antenna system.

12. The mobile terminal of claim 11, wherein, When the first satellite antenna operates in the first mode, the first parasitic radiator is coupled to a floor through a first branch of the first tuning circuit; and when the first satellite antenna operates in the second mode, the first parasitic radiator is coupled to the floor through a second branch of the first tuning circuit.

13. The mobile terminal of claim 12, wherein, When the first satellite antenna operates in the first mode, the first parasitic radiator is used to generate a first resonance, and a resonance point frequency of the first resonance falls outside a communication frequency band of the first satellite antenna; and when the first satellite antenna operates in the second mode, the second parasitic radiator is used to generate a second resonance, and a resonance point frequency of the second resonance falls within the communication frequency band of the first satellite antenna.

14. The mobile terminal of any one of claims 11 to 13, characterized in that The first main radiator and the first parasitic radiator are located in a top region of the mobile terminal along a length direction of the mobile terminal.

15. The mobile terminal according to any one of claims 1 to 14, characterized by The first satellite antenna is used for covering a first frequency band when operating in the first mode, and is used for covering a second frequency band when operating in the second mode, the first frequency band and the second frequency band both include a transmitting frequency band of the satellite antenna system or both include a receiving frequency band of the satellite antenna system.

16. The mobile terminal according to any one of claims 1 to 15, characterized by The satellite antenna system further includes a second satellite antenna, the second satellite antenna includes a second main radiator and a second satellite radio frequency link, a second port of the satellite communication chip is coupled with the second main radiator through the second satellite radio frequency link; the first satellite antenna and the second satellite antenna are both used for covering the transmitting frequency band of the satellite antenna system or both are used for covering the receiving frequency band of the satellite antenna system, and the first satellite antenna and the second satellite antenna are used for jointly generating the first beam pattern and / or the second beam pattern of the satellite antenna system.

17. The mobile terminal of claim 16, wherein, The satellite antenna system further includes a third satellite antenna and a fourth satellite antenna, the third satellite antenna includes a third main radiator and a third satellite radio frequency link, a third port of the satellite communication chip is coupled with the third main radiator through the third satellite radio frequency link; the fourth satellite antenna includes a fourth main radiator and a fourth satellite radio frequency link, a fourth port of the satellite communication chip is coupled with the fourth main radiator through the fourth satellite radio frequency link; The first satellite antenna, the second satellite antenna, the third satellite antenna and the fourth satellite antenna are all used for covering the transmitting frequency band of the satellite antenna system or all are used for covering the receiving frequency band of the satellite antenna system, and the first satellite antenna, the first satellite antenna, the second satellite antenna, the third satellite antenna and the fourth satellite antenna are used for jointly generating the first beam pattern and / or the second beam pattern of the satellite antenna system.

18. The mobile terminal of claim 17, wherein, The mobile terminal includes a frame arranged around a circumference of the mobile terminal, the frame includes a plurality of frame edges connected in a head-to-tail manner; the first main radiator, the second main radiator, the third main radiator and the fourth main radiator are distributed in at least three different frame edges.

19. The mobile terminal of claim 17 or 18, characterized in that When the satellite antenna system generates the second beam pattern, a ratio of an average value of upper hemisphere gain to an average value of lower hemisphere gain of the second beam pattern is a first ratio a; when the satellite antenna system generates the first beam pattern, a ratio of an average value of upper hemisphere gain to an average value of lower hemisphere gain of the first beam pattern is a second ratio b; wherein the first ratio a is less than the second ratio b.

20. The mobile terminal of claim 19, wherein, The first ratio a and the second ratio b satisfy: (b-a)≥10%×b.

21. A mobile terminal, characterized by A satellite antenna system includes a satellite communication chip and a first satellite antenna, wherein: The first satellite antenna comprises a first main radiator and a first switch coupled to the first main radiator, and the first switch is used to switch the first satellite antenna to work in a first mode or a second mode; When the first satellite antenna works in the first mode, the satellite antenna system generates a high-gain beam pattern, and when the first satellite antenna works in the second mode, the satellite antenna system generates a second beam pattern; an average value G1 of a circular polarization gain within a range of ±15° of a maximum value of an upper half-sphere gain of the high-gain beam pattern, and an average value G2 of a circular polarization gain within a range of ±15° of a maximum value of an upper half-sphere gain of the second beam pattern satisfy: G1-G2≥1dB.

22. A mobile terminal, characterized by The satellite antenna system comprises a satellite communication chip and a first satellite antenna, wherein: The first satellite antenna comprises a first main radiator and a first switch coupled to the first main radiator, and the first switch is used to switch the first satellite antenna to work in a first mode or a second mode; When the first satellite antenna works in the first mode, the satellite antenna system generates a first beam pattern; when the first satellite antenna works in the second mode, the satellite antenna system generates a wide beam pattern; within a threshold of a circular polarization gain, a beam width d1 of the wide beam pattern and a beam width d2 of the first beam pattern satisfy: (d1-d2)≥20%×d2.

23. The mobile terminal of claim 22, wherein, When the satellite antenna system is in a transmitting state, the threshold of the circular polarization gain is a difference between an equivalent isotropically radiated power of the satellite antenna system and a transmitting power of a radio frequency.

24. The mobile terminal of claim 22 or 23, characterized in that When the satellite antenna system is in a receiving state, the threshold of the circular polarization gain is a difference between a radiation receiving sensitivity of the satellite antenna system and a conduction sensitivity of a radio frequency.

25. A method of switching a beam pattern of a satellite antenna system of a mobile terminal, characterized in that The satellite antenna system comprises a satellite communication chip and a first satellite antenna coupled to each other, the first satellite antenna comprises a first main radiator and a first switch coupled to the first main radiator, and the method comprises: When the first satellite antenna is switched to work in a first mode through the first switch, the satellite antenna system is controlled to generate a first beam pattern; When the first satellite antenna is switched to work in a second mode through the first switch, the satellite antenna system is controlled to generate a second beam pattern; wherein a gain of the first beam pattern is higher than that of the second beam pattern, and a beam width of the second beam pattern is greater than that of the first beam pattern.

26. The handover method of claim 25, wherein, The method further comprises: The mobile terminal switches the first satellite antenna to work in the first mode through the first switch in a satellite field scenario or a service scenario through the satellite antenna system; or The mobile terminal switches the first satellite antenna to work in the second mode through the first switch in a paging scenario through the satellite antenna system.

27. The handoff method of claim 25, wherein, The method further comprises: The mobile terminal switches the first satellite antenna to work in the first mode through the first switch in a satellite data service scenario through the satellite antenna system; or The mobile terminal switches the first satellite antenna to work in the second mode through the first switch in a satellite data service scenario through the satellite antenna system. In a scenario where the mobile terminal implements a satellite short message service or a satellite telephone service through the satellite antenna system, the first satellite antenna is switched to the second mode of operation by the first switch.

28. The handoff method of claim 25, wherein, The method further comprises: In a scenario where the mobile terminal implements a high-rate service through the satellite antenna system, the first satellite antenna is switched to the first mode of operation by the first switch; or, In a scenario where the mobile terminal implements a low-rate service through the satellite antenna system, the first satellite antenna is switched to the second mode of operation by the first switch.

29. The handover method of any of claims 25 to 28, wherein, The mobile terminal is a foldable mobile terminal, and the method further comprises: When the mobile terminal is in a first folded state, the first satellite antenna is switched to the first mode of operation by the first switch; When the mobile terminal is in a second folded state, the first satellite antenna is switched to the second mode of operation by the first switch.

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