Antenna device and electronic equipment

Abstract

The invention relates to the field of antenna design, and provides a device and electronic equipment, the antenna device comprises a first radiator, the first radiator comprises a first radiation section, a grounding point and a second radiation section, and the grounding point is arranged between the first radiation section and the second radiation section; the first matching unit is connected with a first feeding point arranged in the first radiation section; the second matching unit is connected to the second radiation section; the first matching unit and the second matching unit are used for controlling the radiation mode of the first radiator to be switched from the first radiation mode to the second radiation mode when receiving the first switching instruction, and the working frequency band corresponding to the second radiation mode is larger than the working frequency band corresponding to the first radiation mode. The cellular communication function and the satellite communication function are compatible in the electronic equipment, and the user experience is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of antenna design, and in particular to an antenna device and an electronic device. Background Art

[0002] Satellite communication is the communication between radio communication stations on the earth using satellites as relays. Satellite communication can be carried out between any two points as long as they are within the range of the radio waves emitted by the satellite, and it is not easily affected by land disasters.

[0003] In the existing technology, in some special application scenarios such as outdoor exploration and offshore operations, traditional cellular communication and wireless LAN communication can no longer meet the requirements, and satellite communication is required. How to achieve compatibility between traditional communication and satellite communication functions is an urgent problem that various electronic devices need to solve. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides an antenna device and an electronic device.

[0005] According to a first aspect of an embodiment of the present disclosure, an antenna device is provided, the antenna device comprising:

[0006] A first radiator, the first radiator comprising a first radiating section, a grounding point and a second radiating section, the grounding point being arranged between the first radiating section and the second radiating section;

[0007] A first matching unit connected to a first feeding point arranged in the first radiation section;

[0008] A second matching unit, connected to the second radiation segment;

[0009] The first matching unit and the second matching unit are used to control the radiation mode of the first radiator to switch from the first radiation mode to the second radiation mode when receiving the first switching instruction, and the working frequency band corresponding to the second radiation mode is greater than the working frequency band corresponding to the first radiation mode.

[0010] Optionally, the first matching unit is used to control the tuning of the finite length of the first radiation segment when a first switching instruction is received, and the second matching unit is used to control the tuning of the finite length of the second radiation segment when a first switching instruction is received, thereby controlling the radiation mode of the first radiator to switch from the first radiation mode to the second radiation mode.

[0011] Optionally, the first matching unit includes a first switch circuit and a first matching circuit, and the second matching unit includes a second switch circuit, a second matching circuit, a third switch circuit and a third matching circuit;

[0012] The first switch circuit is used to adjust the impedance of the first matching circuit;

[0013] The second switch circuit is used to adjust the impedance of the second matching circuit;

[0014] The third switch circuit is used to adjust the impedance of the third matching circuit.

[0015] Optionally, the second matching circuit is connected to a second connection point of the second radiation segment;

[0016] The third matching circuit is connected to a third connection point of the second radiation segment;

[0017] The distance between the second connection point and the grounding point is greater than the distance between the third connection point and the grounding point.

[0018] Optionally, the second matching circuit includes a first passive component and a first resistor, the second switch circuit includes a first switch and a second switch, and the first passive component includes a capacitor and / or an inductor;

[0019] The first end of the first passive device is connected to the second connection point, the second end of the first passive device is connected to the first end of the first switch, and the second end of the first switch is grounded;

[0020] A first end of the first resistor is connected to the second connection point, a second end of the first resistor is connected to a first end of the second switch, and a second end of the second switch is grounded.

[0021] Optionally, the third matching circuit includes a second passive component, the third switch circuit includes a third switch, and the second passive component includes a capacitor and / or an inductor;

[0022] A first end of the second passive component is connected to the third connection point, a second end of the second passive component is connected to a first end of the third switch, and a second end of the third switch is grounded.

[0023] Optionally, the first matching circuit includes a first inductor, a second inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a passive device combination circuit;

[0024] The first end of the first capacitor is connected to the first feeding point, the first end of the second capacitor and the first end of the first inductor are both connected to the second end of the first capacitor, and the second end of the second capacitor and the second end of the first inductor are both connected to the first end of the third capacitor;

[0025] The first end of the passive device combination circuit is connected to the first end of the third capacitor, and the second end of the passive device combination circuit is connected to the ground through the first switch circuit;

[0026] The second end of the third capacitor is connected to the first end of the second inductor, the second end of the second inductor is used to connect to the first feed source, and the second end of the second inductor is connected to the first end of the fourth capacitor, and the second end of the fourth capacitor is grounded.

[0027] Optionally, the passive device combination circuit includes a third passive device, a fourth passive device, a fifth passive device and a sixth passive device, the first switch circuit includes a fourth switch, a fifth switch, a sixth switch and a seventh switch, and the third passive device, the fourth passive device, the fifth passive device and the sixth passive device all include capacitors and / or inductors;

[0028] A first end of the third passive component, a first end of the fourth passive component, a first end of the fifth passive component, and a first end of the sixth passive component are all connected to the first end of the third capacitor, a second end of the third passive component is connected to the first end of the fourth switch, a second end of the fourth passive component is connected to the first end of the fifth switch, a second end of the fifth passive component is connected to the first end of the sixth switch, a second end of the sixth passive component is connected to the first end of the seventh switch, and second ends of the fourth switch, the fifth switch, the sixth switch, and the seventh switch are all grounded.

[0029] Optionally, the antenna device further comprises a grounding circuit connected to the grounding point;

[0030] The grounding circuit includes a fifth capacitor, a first end of the fifth capacitor is connected to the grounding point, and a second end of the fifth capacitor is grounded.

[0031] Optionally, the antenna device further includes a second radiator;

[0032] The first end of the second radiator, the first radiator, and the second end of the second radiator are arranged in sequence and spaced apart, and the first end of the second radiator, the second end of the second radiator, and the first radiator are all arranged on the top or bottom of the electronic device.

[0033] Optionally, the antenna device further includes:

[0034] A third matching unit connected to the first end of the second radiator;

[0035] The fourth matching unit is connected to the second end of the second radiator.

[0036] Optionally, the third matching unit includes a fourth switch circuit and a fourth matching circuit, and the fourth matching unit includes a fifth switch circuit and a fifth matching circuit;

[0037] The fourth switch circuit is used to adjust the impedance of the fourth matching circuit;

[0038] The fifth switch circuit is used to adjust the impedance of the fifth matching circuit.

[0039] Optionally, the fourth switch circuit includes an eighth switch and a ninth switch, the fourth matching circuit includes a second resistor and a seventh passive component, the fifth switch circuit includes a tenth switch and an eleventh switch, the fifth matching circuit includes a third resistor and an eighth passive component, the seventh passive component includes a capacitor and / or an inductor, and the eighth passive component includes a capacitor and / or an inductor;

[0040] The first end of the second resistor and the first end of the seventh passive component are both connected to the first end of the second radiator, and the first end of the second resistor and the first end of the seventh passive component are used to connect a second feed source, the second end of the second resistor is connected to the first end of the eighth switch, the second end of the seventh passive component is connected to the first end of the ninth switch, and the second end of the eighth switch and the second end of the ninth switch are grounded;

[0041] The first end of the third resistor and the first end of the eighth passive component are both connected to the second end of the second radiator, and the first end of the third resistor and the first end of the eighth passive component are used to connect to a third feed source, the second end of the third resistor is connected to the first end of the tenth switch, the second end of the eighth passive component is connected to the first end of the eleventh switch, and the second end of the tenth switch and the second end of the eleventh switch are grounded.

[0042] According to a second aspect of an embodiment of the present disclosure, an electronic device is provided, the electronic device comprising:

[0043] An antenna device as provided in any one of the first aspects of the present disclosure.

[0044] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0045] In order to solve the above-mentioned technical problems, the embodiment of the present disclosure controls the radiation mode of the first radiator including the first radiation segment, the grounding point and the second radiation segment to switch from the first radiation mode with a small working frequency band (for example, the radiation mode of a cellular antenna or the radiation mode of a wireless local area network) to the second radiation mode with a large working frequency band (for example, the radiation mode of a satellite antenna) when receiving the first switching instruction, so that the traditional communication function and the satellite communication function are compatible in the electronic device, thereby improving the user experience.

[0046] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0048] Figure 1 The diagram is a schematic diagram of an electronic device according to an exemplary embodiment.

[0049] Figure 2 is a schematic diagram of another electronic device according to an exemplary embodiment.

[0050] Figure 3 is a circuit diagram of an antenna device according to an exemplary embodiment.

[0051] Figure 4 is a standing wave ratio diagram of the Tiantong satellite at different frequencies according to an exemplary embodiment. DETAILED DESCRIPTION

[0052] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0053] The terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and have no order or importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements.

[0054] Satellite communication is the communication between radio communication stations on the earth using satellites as relays. Satellite communication can be carried out between any two points as long as they are within the range of the radio waves emitted by the satellite, and it is not easily affected by land disasters.

[0055] In the existing technology, in some special application scenarios such as outdoor exploration and offshore operations, traditional cellular communication and wireless LAN communication can no longer meet the requirements, and satellite communication is required. How to achieve compatibility between traditional communication and satellite communication functions is an urgent problem that various electronic devices need to solve.

[0056] In order to solve the above-mentioned technical problems, the embodiment of the present disclosure controls the radiation mode of the first radiator including the first radiation segment, the grounding point and the second radiation segment to switch from the first radiation mode with a small working frequency band (for example, the radiation mode of a cellular antenna or the radiation mode of a wireless local area network) to the second radiation mode with a large working frequency band (for example, the radiation mode of a satellite antenna) when receiving the first switching instruction, so that the traditional communication function and the satellite communication function are compatible in the electronic device, thereby improving the user experience.

[0057] See also Figure 1 and Figure 2 , where 1 is an electronic device, I is a metal frame, and Ⅱ is the upper frame position of the antenna. The metal frame and the mainboard can be connected by metal such as shrapnel or screws to achieve antenna transmission. A represents antenna A, B represents antenna B and satellite antenna, and C represents antenna C.

[0058] Figure 3 is a circuit diagram of an antenna device according to an exemplary embodiment. Figure 3 As shown, the antenna device may include:

[0059] A first radiator, the first radiator comprising a first radiating section, a grounding point and a second radiating section, wherein the grounding point is arranged between the first radiating section and the second radiating section;

[0060] A first matching unit 10 is connected to a first feeding point arranged in the first radiation section;

[0061] A second matching unit 20, connected to the second radiation section;

[0062] The first matching unit 10 and the second matching unit 20 are used to control the radiation mode of the first radiator to switch from the first radiation mode to the second radiation mode when receiving the first switching instruction, and the working frequency band corresponding to the second radiation mode is greater than the working frequency band corresponding to the first radiation mode.

[0063] The first switching instruction may be an instruction generated to switch the electronic device to a satellite communication state when it is detected that the electronic device is currently in a no-network state, a disconnected network state, an airplane mode, or a satellite mode is activated.

[0064] The first radiation pattern may be a radiation pattern of a traditional antenna such as a radiation pattern of a cellular antenna or a radiation pattern of a wireless local area network, and the second radiation pattern may be a radiation pattern of a satellite antenna.

[0065] It should be understood that the first matching unit 10 and the second matching unit 20 are also used to control the radiation mode of the first radiator to switch from the second radiation mode to the first radiation mode when receiving the second switching instruction. The second switching instruction can be an instruction generated to switch the electronic device to the cellular communication state when it is detected that the electronic device is currently in a network state or the cellular mode is started.

[0066] By controlling the radiation mode of the first radiator including the first radiation segment, the ground point and the second radiation segment to switch from the first radiation mode with a small working frequency band (for example, the radiation mode of the cellular antenna or the radiation mode of the wireless local area network) to the second radiation mode with a large working frequency band (for example, the radiation mode of the satellite antenna) when receiving the first switching instruction, the traditional communication function and the satellite communication function are compatible in the electronic device, thereby improving the user experience. Moreover, the first radiator can switch between the radiation mode of the traditional antenna and the radiation mode of the satellite antenna, and work compatibly and collaboratively under the same hardware structure, saving the space structure in the electronic device, and also alleviating the difficulty of antenna layout in the electronic device.

[0067] In a possible embodiment, the first matching unit 10 is used to control the tuning of the finite length of the first radiation segment when receiving the first switching instruction, and the second matching unit 20 is used to control the tuning of the finite length of the second radiation segment when receiving the first switching instruction, thereby controlling the radiation mode of the first radiator to switch from the first radiation mode to the second radiation mode.

[0068] In a possible implementation, the first matching unit 10 includes a first switch circuit 11 and a first matching circuit 12, and the second matching unit 20 includes a second switch circuit 21, a second matching circuit 22, a third switch circuit 23 and a third matching circuit 24;

[0069] The first switch circuit 11 is used to adjust the impedance of the first matching circuit 12;

[0070] The second switch circuit 21 is used to adjust the impedance of the second matching circuit 22;

[0071] The third switch circuit 23 is used to adjust the impedance of the third matching circuit 24 .

[0072] By closing or turning on the switch in the first switch circuit 11 , the impedance device in the first matching circuit 12 is selectively turned on, thereby adjusting the impedance of the first matching circuit 12 .

[0073] By closing or turning on the switch in the second switch circuit 21 , the impedance device in the second matching circuit 22 is selectively turned on, thereby adjusting the impedance of the second matching circuit 22 .

[0074] By closing or turning on the switch in the third switch circuit 23 , the impedance device in the third matching circuit 24 is selectively turned on, thereby adjusting the impedance of the third matching circuit 24 .

[0075] In a possible implementation, the second matching circuit 22 is connected to the second connection point of the second radiation segment; the third matching circuit 24 is connected to the third connection point of the second radiation segment; and the distance between the second connection point and the grounding point is greater than the distance between the third connection point and the grounding point.

[0076] The first radiator includes a first end and a second end, the second radiation section is between the first end of the first radiator and the grounding point, the first radiation section is between the second end of the first radiator and the grounding point, the second connection point and the third connection point are both on the second radiation section, and the distance from the second connection point to the first end of the first radiator is smaller than the distance from the third connection point to the first end of the first radiator.

[0077] In a possible implementation, the second matching circuit 22 includes a first passive component RF1 and a first resistor R1, the second switch circuit 21 includes a first switch K1 and a second switch K2, and the first passive component RF1 includes a capacitor and / or an inductor;

[0078] A first end of the first passive device RF1 is connected to the second connection point, a second end of the first passive device RF1 is connected to a first end of the first switch K1, and a second end of the first switch K1 is grounded;

[0079] A first end of the first resistor R1 is connected to the second connection point, a second end of the first resistor R1 is connected to a first end of the second switch K2 , and a second end of the second switch K2 is grounded.

[0080] The resistance value of the first resistor R1 may be 0Ω.

[0081] When switching to the radiation mode of the satellite antenna, the first switch K1 is controlled to be closed, and the second switch K2 is controlled to be opened, and the second matching circuit 22 is grounded through the first passive component RF1.

[0082] When switching to the radiation mode of the traditional antenna, the first switch K1 is controlled to be opened, and the second switch K2 is controlled to be closed, and the second matching circuit 22 is grounded through the first resistor R1. When the resistance value of the first resistor R1 is 0Ω, the second matching circuit 22 is short-circuited to ground.

[0083] It should be understood that the first switch K1 and the second switch K2 may also be integrated into a single-pole double-throw switch.

[0084] In a possible implementation manner, the third matching circuit 24 includes a second passive component RF2, the third switch circuit 23 includes a third switch K3, and the second passive component RF2 includes a capacitor and / or an inductor;

[0085] A first end of the second passive component RF2 is connected to the third connection point, a second end of the second passive component RF2 is connected to a first end of the third switch K3 , and a second end of the third switch K3 is grounded.

[0086] When switching to the radiation mode of the satellite antenna, the third switch K3 is controlled to be disconnected, and the third matching circuit 24 is disconnected.

[0087] When switching to the radiation mode of the traditional antenna, the third switch K3 is controlled to be closed, and the third matching circuit 24 is grounded through the second passive component RF2.

[0088] In other embodiments, the third switch K3 may be set as a single-pole double-throw switch, one of the switches is connected to the second passive device RF2, and the other switch is set to empty.

[0089] In a possible implementation, the first matching circuit 12 includes a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a passive device combination circuit 121;

[0090] A first end of the first capacitor C1 is connected to the first feeding point, a first end of the second capacitor C2 and a first end of the first inductor L1 are both connected to a second end of the first capacitor C1, and a second end of the second capacitor C2 and a second end of the first inductor L1 are both connected to a first end of the third capacitor C3;

[0091] A first end of the passive device combination circuit 121 is connected to a first end of the third capacitor C3, and a second end of the passive device combination circuit 121 is connected to the ground through the first switch circuit 11;

[0092] The second end of the third capacitor C3 is connected to the first end of the second inductor L2, the second end of the second inductor L2 is used to connect to the first feed source ANT1, and the second end of the second inductor L2 is connected to the first end of the fourth capacitor C4, and the second end of the fourth capacitor C4 is grounded.

[0093] By closing or turning on the switch in the first switch circuit 11 , the impedance device in the passive device combination circuit 121 is selectively turned on, thereby adjusting the impedance of the first matching circuit 12 .

[0094] In a possible implementation, the passive component combination circuit 121 includes a third passive component RF3, a fourth passive component RF4, a fifth passive component RF5, and a sixth passive component RF6, the first switch circuit 11 includes a fourth switch K4, a fifth switch K5, a sixth switch K6, and a seventh switch K7, and the third passive component RF3, the fourth passive component RF4, the fifth passive component RF5, and the sixth passive component RF6 all include capacitors and / or inductors;

[0095] A first end of the third passive device RF3, a first end of the fourth passive device RF4, a first end of the fifth passive device RF5, and a first end of the sixth passive device RF6 are all connected to the first end of the third capacitor C3, a second end of the third passive device RF3 is connected to the first end of the fourth switch K4, a second end of the fourth passive device RF4 is connected to the first end of the fifth switch K5, a second end of the fifth passive device RF5 is connected to the first end of the sixth switch K6, a second end of the sixth passive device RF6 is connected to the first end of the seventh switch K7, and a second end of the fourth switch K4, a second end of the fifth switch K5, a second end of the sixth switch K6, and a second end of the seventh switch K7 are all grounded.

[0096] The passive device combination circuit 121 may include two inductors and two capacitors, the passive device combination circuit 121 may also include one inductor and three capacitors, or the passive device combination circuit 121 may also include three inductors and one capacitor, which is not limited in this embodiment.

[0097] By selectively turning on the third passive device RF3, the fourth passive device RF4, the fifth passive device RF5 and the sixth passive device RF6, they are connected to the first matching circuit 12 in different combinations to adjust the antenna to be capacitive or inductive to adjust the working frequency band of the antenna.

[0098] In a possible implementation manner, the antenna device further includes a grounding circuit connected to the grounding point;

[0099] The grounding circuit includes a fifth capacitor C5 , a first end of the fifth capacitor C5 is connected to the grounding point, and a second end of the fifth capacitor C5 is grounded.

[0100] The capacitance of the fifth capacitor C5 may be greater than 10 pf, for example, 33 pf.

[0101] In a possible implementation, the antenna device further includes a second radiator;

[0102] The first end of the second radiator, the first radiator and the second end of the second radiator are arranged in sequence and spaced apart from each other, and the first end of the second radiator, the second end of the second radiator and the first radiator are all arranged on the top or bottom of the electronic device.

[0103] The first end of the second radiator is spaced apart from the first end of the first radiator to form a gap, and the second end of the first radiator is spaced apart from the second end of the second radiator to form a gap. This effectively reduces the number of gaps in the antenna, with one gap replacing the original 2 to 3 gaps, while increasing the NFC experience.

[0104] Since the first end of the second radiator, the second end of the second radiator and the first radiator are all arranged at the top or bottom of the electronic device, during daily communication, hands generally do not touch or block the top or bottom, thereby avoiding the performance of the antenna being affected by hand blocking, and the gain effect is better.

[0105] In a possible implementation manner, the antenna device further includes:

[0106] A third matching unit 30, connected to the first end of the second radiator;

[0107] The fourth matching unit 40 is connected to the second end of the second radiator.

[0108] The third matching unit 30 includes a fourth switch circuit 31 and a fourth matching circuit 32, and the fourth matching unit 40 includes a fifth switch circuit 41 and a fifth matching circuit 42;

[0109] The fourth switch circuit 31 is used to adjust the impedance of the fourth matching circuit 32;

[0110] The fifth switch circuit 41 is used to adjust the impedance of the fifth matching circuit 42 .

[0111] By closing or turning on the switch in the fourth switch circuit 31 , the impedance device in the fourth matching circuit 32 is selectively turned on, thereby adjusting the impedance of the fourth matching circuit 32 .

[0112] By closing or turning on the switch in the fifth switch circuit 41 , the impedance device in the fifth matching circuit 42 is selectively turned on, thereby adjusting the impedance of the fifth matching circuit 42 .

[0113] In a possible implementation, the fourth switch circuit 31 includes an eighth switch K8 and a ninth switch K9, the fourth matching circuit 32 includes a second resistor R2 and a seventh passive component RF7, the fifth switch circuit 41 includes a tenth switch K10 and an eleventh switch K11, the fifth matching circuit 42 includes a third resistor R3 and an eighth passive component RF8, the seventh passive component RF7 includes a capacitor and / or an inductor, and the eighth passive component RF8 includes a capacitor and / or an inductor;

[0114] The first end of the second resistor R2 and the first end of the seventh passive component RF7 are both connected to the first end of the second radiator, and the first end of the second resistor R2 and the first end of the seventh passive component RF7 are used to connect the second feed source ANT2, the second end of the second resistor R2 is connected to the first end of the eighth switch K8, the second end of the seventh passive component RF7 is connected to the first end of the ninth switch K9, and the second end of the eighth switch K8 and the second end of the ninth switch K9 are grounded;

[0115] The first end of the third resistor R3 and the first end of the eighth passive component RF8 are both connected to the second end of the second radiator, and the first end of the third resistor R3 and the first end of the eighth passive component RF8 are used to connect to the third feed source ANT3, the second end of the third resistor R3 is connected to the first end of the tenth switch K10, the second end of the eighth passive component RF8 is connected to the first end of the eleventh switch K11, and the second end of the tenth switch K10 and the second end of the eleventh switch K11 are grounded.

[0116] In other embodiments, the eighth switch K8 and the ninth switch K9 may also be integrated into a single-pole double-throw switch. The tenth switch K10 and the eleventh switch K11 may also be integrated into a single-pole double-throw switch.

[0117] Among them, ① is the upper frame point of antenna A, ② is the modem upper frame point of antenna B, ③ can improve the satellite antenna, the tuning position of the influence of antenna B on antenna A, ④ is the return ground frame of antenna B and satellite antenna, ⑤ is the upper frame of the feed point of antenna B and satellite antenna, ⑥ is the upper frame of antenna C and the antenna that improves the directivity and circular polarization gain of the satellite antenna.

[0118] When the antenna is a satellite antenna, the first radiation section serves as the main radiation unit, which generates the antenna length of the excitation itself. The second radiation section is an auxiliary unit, which assists in improving the antenna efficiency, directivity and circular polarization gain. Antenna C is also an auxiliary unit of the satellite antenna, which assists in improving the antenna efficiency, directivity and circular polarization gain.

[0119] Taking Tiantong satellite as an example, the transmission frequency of Tiantong satellite is 1980MHZ~2010MHZ, and the reception frequency is 2170~2200MHZ. In order to improve the left-hand circular polarization and directivity of Tiantong antenna and improve antenna efficiency, the resonance of about 1.6GHZ is tuned through position ②, and the resonance of about 2.7GHZ is tuned through position ⑥. Different states of the switch are used to achieve this, as shown in 4, thereby stimulating the target resonance and realizing the satellite antenna.

[0120] In the Tiantong state antenna, ② switches out the target resonance through RF1; ③ position is disconnected by RF2 to reduce the impact on ② position; ⑥ position is switched out of the target resonance through RF1.

[0121] Under the cellular antenna, the same ②③④⑤⑥ achieves the performance of the cellular antenna, including the performance of antenna A, antenna B, and antenna C.

[0122] At position ②, the first resistor R1 = 0 ohm is used to realize the cellular antenna of antenna B through a switch short circuit, while reducing the influence of antenna A. At position ③, the loop mode between position ④ and position ② after position ② is short-circuited is destroyed through the second passive device, reducing the influence on antenna A and ensuring the performance of antenna A. At position ⑥, the switch is used to switch the target resonance and performance of antenna C. At this time, at position ⑤, different frequency bands of the cellular antenna are normally switched according to the target logic.

[0123] In cellular mode, the on / off state is controlled by the traditional modem.

[0124] The modem controls the switch to adjust to the target resonance position by identifying whether the electronic device is in disconnected or flight mode or in satellite mode.

[0125] Through the input and output pins controlled by the Tiantong chip, it is identified whether the Tiantong antenna is transmitting uplink or receiving downlink at this time, and the switch controlled by the Tiantong chip is called to switch the receiving resonance and transmitting resonance of the Tiantong antenna, so as to achieve the model quality of the Tiantong antenna. For example, when the input and output pins controlled by the Tiantong chip are at a high level, it represents transmission, and when the input and output pins controlled by the Tiantong chip are at a low level, it represents reception.

[0126] An embodiment of the present disclosure further provides an electronic device, which includes the above-mentioned antenna device.

[0127] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0128] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An antenna device, characterized in that: The antenna device comprises: A first radiator, the first radiator comprising a first radiating section, a grounding point and a second radiating section, the grounding point being arranged between the first radiating section and the second radiating section; A first matching unit connected to a first feeding point arranged in the first radiation section; A second matching unit, connected to the second radiation segment; The first matching unit and the second matching unit are used to control the radiation mode of the first radiator to switch from the first radiation mode to the second radiation mode when receiving the first switching instruction, and the working frequency band corresponding to the second radiation mode is greater than the working frequency band corresponding to the first radiation mode.

2. The antenna device according to claim 1, characterized in that The first matching unit is used to control the tuning of the finite length of the first radiation segment when receiving the first switching instruction, and the second matching unit is used to control the tuning of the finite length of the second radiation segment when receiving the first switching instruction, thereby controlling the radiation mode of the first radiator to switch from the first radiation mode to the second radiation mode.

3. The antenna device according to claim 2, characterized in that The first matching unit includes a first switch circuit and a first matching circuit, and the second matching unit includes a second switch circuit, a second matching circuit, a third switch circuit and a third matching circuit; The first switch circuit is used to adjust the impedance of the first matching circuit; The second switch circuit is used to adjust the impedance of the second matching circuit; The third switch circuit is used to adjust the impedance of the third matching circuit.

4. The antenna device according to claim 3, characterized in that: The second matching circuit is connected to a second connection point of the second radiation segment; The third matching circuit is connected to a third connection point of the second radiation segment; The distance between the second connection point and the grounding point is greater than the distance between the third connection point and the grounding point.

5. The antenna device according to claim 4, characterized in that: The second matching circuit includes a first passive component and a first resistor, the second switch circuit includes a first switch and a second switch, and the first passive component includes a capacitor and / or an inductor; The first end of the first passive device is connected to the second connection point, the second end of the first passive device is connected to the first end of the first switch, and the second end of the first switch is grounded; A first end of the first resistor is connected to the second connection point, a second end of the first resistor is connected to a first end of the second switch, and a second end of the second switch is grounded.

6. The antenna device according to claim 4, characterized in that: The third matching circuit includes a second passive component, the third switch circuit includes a third switch, and the second passive component includes a capacitor and / or an inductor; A first end of the second passive component is connected to the third connection point, a second end of the second passive component is connected to a first end of the third switch, and a second end of the third switch is grounded.

7. The antenna device according to claim 3, characterized in that: The first matching circuit includes a first inductor, a second inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a passive device combination circuit; The first end of the first capacitor is connected to the first feeding point, the first end of the second capacitor and the first end of the first inductor are both connected to the second end of the first capacitor, and the second end of the second capacitor and the second end of the first inductor are both connected to the first end of the third capacitor; The first end of the passive device combination circuit is connected to the first end of the third capacitor, and the second end of the passive device combination circuit is connected to the ground through the first switch circuit; The second end of the third capacitor is connected to the first end of the second inductor, the second end of the second inductor is used to connect to the first feed source, and the second end of the second inductor is connected to the first end of the fourth capacitor, and the second end of the fourth capacitor is grounded.

8. The antenna device according to claim 7, characterized in that: The passive device combination circuit includes a third passive device, a fourth passive device, a fifth passive device and a sixth passive device, the first switch circuit includes a fourth switch, a fifth switch, a sixth switch and a seventh switch, and the third passive device, the fourth passive device, the fifth passive device and the sixth passive device all include capacitors and / or inductors; A first end of the third passive component, a first end of the fourth passive component, a first end of the fifth passive component, and a first end of the sixth passive component are all connected to the first end of the third capacitor, a second end of the third passive component is connected to the first end of the fourth switch, a second end of the fourth passive component is connected to the first end of the fifth switch, a second end of the fifth passive component is connected to the first end of the sixth switch, a second end of the sixth passive component is connected to the first end of the seventh switch, and second ends of the fourth switch, the fifth switch, the sixth switch, and the seventh switch are all grounded.

9. The antenna device according to claim 1, characterized in that: The antenna device further comprises a grounding circuit connected to the grounding point; The grounding circuit includes a fifth capacitor, a first end of the fifth capacitor is connected to the grounding point, and a second end of the fifth capacitor is grounded.

10. The antenna device according to claim 1, characterized in that: The antenna device also includes a second radiator; The first end of the second radiator, the first radiator, and the second end of the second radiator are arranged in sequence and spaced apart, and the first end of the second radiator, the second end of the second radiator, and the first radiator are all arranged on the top or bottom of the electronic device.

11. The antenna device according to claim 10, characterized in that: The antenna device further comprises: A third matching unit connected to the first end of the second radiator; The fourth matching unit is connected to the second end of the second radiator.

12. The antenna device according to claim 11, characterized in that: The third matching unit includes a fourth switch circuit and a fourth matching circuit, and the fourth matching unit includes a fifth switch circuit and a fifth matching circuit; The fourth switch circuit is used to adjust the impedance of the fourth matching circuit; The fifth switch circuit is used to adjust the impedance of the fifth matching circuit.

13. The antenna device according to claim 12, characterized in that: The fourth switch circuit includes an eighth switch and a ninth switch, the fourth matching circuit includes a second resistor and a seventh passive component, the fifth switch circuit includes a tenth switch and an eleventh switch, the fifth matching circuit includes a third resistor and an eighth passive component, the seventh passive component includes a capacitor and / or an inductor, and the eighth passive component includes a capacitor and / or an inductor; The first end of the second resistor and the first end of the seventh passive component are both connected to the first end of the second radiator, and the first end of the second resistor and the first end of the seventh passive component are used to connect a second feed source, the second end of the second resistor is connected to the first end of the eighth switch, the second end of the seventh passive component is connected to the first end of the ninth switch, and the second end of the eighth switch and the second end of the ninth switch are grounded; The first end of the third resistor and the first end of the eighth passive component are both connected to the second end of the second radiator, and the first end of the third resistor and the first end of the eighth passive component are used to connect to a third feed source, the second end of the third resistor is connected to the first end of the tenth switch, the second end of the eighth passive component is connected to the first end of the eleventh switch, and the second end of the tenth switch and the second end of the eleventh switch are grounded.

14. An electronic device, characterized in that: The electronic device comprises: The antenna device according to any one of claims 1 to 13.

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