Antenna assembly and electronic equipment

Abstract

The utility model provides an antenna assembly and electronic equipment, and relates to the technical field of antennas. The antenna assembly comprises a first antenna radiator, a second antenna radiator and a feed network. The first antenna radiator and the second antenna radiator are arranged in a head-to-head manner, and the second antenna radiator is used for realizing satellite communication; the first antenna radiator comprises a first feeding point, and the feeding network is electrically connected with the first feeding point; the feed network comprises a 0-ohm branch, the first end of the 0-ohm branch is electrically connected with the first feed point, the second end of the 0-ohm branch is grounded, and the 0-ohm branch is conducted when the second antenna radiator performs satellite communication. The antenna assembly provided by the utility model can reduce the influence of the first antenna radiator on the second antenna radiator, does not need to occupy a radio frequency port in a feed network of the first antenna radiator, improves the satellite communication performance of the second antenna radiator, and guarantees the working performance of the first antenna radiator.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and particularly relates to an antenna assembly and an electronic device. Background Art

[0002] In recent years, satellite communication technology has become a new product hotspot for electronic devices such as mobile phones. The satellite communication technology enables the communication of electronic devices to be no longer restricted, breaks through the coverage limitation of ground base stations, and can ensure stable communication in remote areas, emergency situations or special scenarios.

[0003] In related art electronic devices, the satellite communication antenna and other antennas are arranged adjacent to each other on the frame of the electronic device. However, due to the particularity of the satellite communication antenna in terms of loss, gain and other performances, the satellite communication antenna is extremely vulnerable to interference from adjacent antennas, which affects the normal working performance of the satellite communication antenna. Summary of the Utility Model

[0004] The utility model provides an antenna assembly and an electronic device, which can solve the problem that the satellite communication antenna is extremely vulnerable to interference from adjacent antennas.

[0005] The technical solution is as follows:

[0006] On the one hand, an antenna assembly is provided. The antenna assembly includes: a first antenna radiator, a second antenna radiator and a feeding network;

[0007] The first antenna radiator and the second antenna radiator are arranged head-to-head, and the second antenna radiator is used to realize satellite communication;

[0008] The first antenna radiator includes a first feeding point, and the feeding network is electrically connected to the first feeding point;

[0009] The feeding network includes a 0-ohm branch. The first end of the 0-ohm branch is electrically connected to the first feeding point, the second end of the 0-ohm branch is grounded, and the 0-ohm branch conducts when the second antenna radiator conducts satellite communication.

[0010] In some embodiments, the feeding network includes a radio frequency switch. The radio frequency switch includes a radio frequency signal common terminal, a plurality of switch peripheral ports, a plurality of first switch units and a second switch unit;

[0011] Each of the switch peripheral ports is electrically connected to the radio frequency signal common terminal through a respective first switch unit; the second end of the 0-ohm branch is connected to one of the switch peripheral ports, and the corresponding switch peripheral port is grounded through the second switch unit;

[0012] When the second antenna radiator conducts satellite communication, the second switching unit is closed, and the 0-ohm branch is conducted to the ground through the switch peripheral port and the second switching unit.

[0013] In some embodiments, the feeding network further includes a feeding circuit, one end of the feeding circuit is electrically connected to the first feed source, and the second end of the feeding circuit is electrically connected to the first feeding point;

[0014] The RF signal common end is electrically connected to the feeding circuit, the first end of the 0-ohm branch is electrically connected to the feeding circuit, and is electrically connected to the first feeding point through the feeding circuit.

[0015] In some embodiments, the feeding circuit includes a first capacitor element, a second capacitor element, a first inductor element and a second inductor element;

[0016] The first feed source is respectively electrically connected to one end of the first capacitor element and one end of the first inductor element, the other end of the first capacitor element is grounded, the other end of the first inductor element is respectively electrically connected to the first end of the 0-ohm branch and one end of the second capacitor element, the other end of the second capacitor element is respectively electrically connected to the RF signal common end, one end of the second inductor element and the first feeding point, and the other end of the second inductor element is grounded.

[0017] In some embodiments, the feeding circuit further includes at least one third inductor element, one end of the at least one third inductor element is electrically connected to one of the switch peripheral ports, and the other end of the at least one third inductor element is grounded.

[0018] In some embodiments, a slit structure is provided between the first antenna radiator and the second antenna radiator; the length of the first antenna radiator is L1, and the distance between the first feeding point and the slit structure is L2, where the value range of L1 / L2 is 2-4.

[0019] In some embodiments, the length of the second antenna radiator is L3, where the value range of L3 / L1 is 1.5-2.3.

[0020] In some embodiments, the first antenna radiator is used to implement MHB+N78 band communication.

[0021] On the other hand, an electronic device is provided, and the electronic device includes the antenna assembly of the present invention.

[0022] In some embodiments, the electronic device further includes a machine body frame, and the first antenna radiator and the second antenna radiator are respectively located at the top of the machine body frame.

[0023] The beneficial effects brought by the technical solution provided by the present utility model at least include:

[0024] In the antenna assembly of the present utility model, the second antenna radiator for satellite communication is arranged head-to-head with the first antenna radiator. When the second antenna radiator conducts satellite communication, the first antenna radiator returns to the ground by using the 0-ohm branch in the feeding network, thereby reducing the influence of the first antenna radiator on the second antenna radiator. At the same time, it is not necessary to occupy the RF port in the feeding network of the first antenna radiator, and the tuning state of the first antenna radiator will not be affected. It can improve the satellite communication performance of the second antenna radiator while ensuring the working performance of the first antenna radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a schematic structural diagram of the antenna assembly provided by the embodiment of the present utility model;

[0027] Figure 2 is a schematic structural diagram of the feeding network provided by the embodiment of the present utility model;

[0028] Figure 3 is a schematic structural diagram of the electronic device provided by the embodiment of the present utility model;

[0029] Figure 4 is a simulation effect diagram of S11 of the antenna assembly provided by the embodiment of the present utility model;

[0030] Figure 5 is a simulation effect diagram of the radiation efficiency of the antenna assembly provided by the embodiment of the present utility model.

[0031] The reference numerals in the drawings are respectively represented as:

[0032] 1, the first antenna radiator;

[0033] 11, the first feeding point;

[0034] 2, the second antenna radiator;

[0035] 3, the feeding network;

[0036] 31. 0-ohm branch; 32. RF switch; 321. Common end of RF signal; 322. Peripheral port of switch; 323. First switch unit; 324. Second switch unit; 33. Feeding circuit; C1. First capacitor element; C2. Second capacitor element; L1. First inductor element; L2. Second inductor element; L3. Third inductor element;

[0037] 4. Slot structure;

[0038] 5. First feed source;

[0039] 100. Aircraft fuselage frame. Detailed implementation

[0040] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0042] It should be understood that in the present invention, "electrically connected" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines such as copper foils or wires of a printed circuit board (PCB) that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to the connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship, that is, A is connected to B or A is connected with B can mean that there are fastening members (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and it is difficult to separate A and B.

[0043] Unless otherwise defined, all technical terms used in the embodiments of the present utility model have the same meaning as commonly understood by those of ordinary skill in the art.

[0044] The present utility model provides an electronic device. Specifically, the electronic device can be any one of various types of mobile or portable computer system devices. Specifically, the electronic device can be a mobile phone or a smart phone (e.g., iPhone TM - based, Android TM - based phone), a portable gaming device (e.g., Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), a laptop computer, a PDA, a portable Internet device, a music player, and a data storage device, other handheld devices, and devices such as headphones, etc. The electronic device can also be other wearable devices that need to be charged (e.g., a head - mounted device (HMD) such as an electronic bracelet, an electronic necklace, or a smart watch).

[0045] The electronic device can also be any one of multiple electronic devices, and the multiple electronic devices include but are not limited to cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, other media recorders, radios, medical devices, vehicle transportation instruments, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbook computers, personal digital assistants (PDAs), portable multimedia players (PMPs), Moving Picture Experts Group (MPEG - 1 or MPEG - 2) Audio Layer 3 (MP3) players, portable medical devices, and digital cameras and their combinations, etc.

[0046] In some cases, the electronic device can perform multiple functions (e.g., playing music, displaying videos, storing pictures, and receiving and sending phone calls). If needed, the electronic device can be a device such as a cellular phone, a media player, other handheld devices, a wrist - watch device, a pendant device, a headset device, or other compact portable devices.

[0047] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0048] On the one hand, as shown in combination with Figure 1 and Figure 2 this embodiment provides an antenna assembly, and the antenna assembly includes: a first antenna radiator 1, a second antenna radiator 2, and a feeding network 3.

[0049] The first antenna radiator 1 and the second antenna radiator 2 are arranged head-to-head, and the second antenna radiator 2 is used to implement satellite communication; the first antenna radiator 1 includes a first feeding point 11, and the feeding network 3 is electrically connected to the first feeding point 11. The feeding network 3 is used to ground the first antenna radiator 1 when the second antenna radiator 2 performs satellite communication.

[0050] The feeding network 3 includes a 0-ohm branch 31. The first end of the 0-ohm branch 31 is electrically connected to the first feeding point 11, and the second end of the 0-ohm branch 31 is grounded. When the second antenna radiator 2 performs satellite communication, the 0-ohm branch 31 is turned on.

[0051] For the antenna assembly of the present utility model, the second antenna radiator 2 for satellite communication and the first antenna radiator 1 are arranged head-to-head. When the second antenna radiator 2 performs satellite communication, the first antenna radiator 1 uses the 0-ohm branch 31 in the feeding network 3 to return to the ground, thereby reducing the influence of the first antenna radiator 1 on the second antenna radiator 2. At the same time, it does not need to occupy the RF port in the feeding network 3 of the first antenna radiator 1 and will not affect the tuning state of the first antenna radiator 1. It can improve the satellite communication performance of the second antenna radiator 2 while ensuring the working performance of the first antenna radiator 1.

[0052] Among them, the first antenna radiator 1 and the second antenna radiator 2 being arranged head-to-head can be that the first antenna radiator 1 and the second antenna radiator 2 are located on the same straight line, one end of the first antenna radiator 1 and one end of the second antenna radiator 2 are adjacent, and the other end of the first antenna radiator 1 and the other end of the second antenna radiator 2 extend in directions away from each other respectively. It can also be that the first antenna radiator 1 and the second antenna radiator 2 are located on the same side frame of the electronic device, and a section of the same side frame is used to form the first antenna radiator 1, and an adjacent other section forms the second antenna radiator 2.

[0053] Combined Figure 2 As shown, in some embodiments, the feeding network 3 includes a RF switch 32. The RF switch 32 includes a RF signal common terminal 321, a plurality of switch peripheral ports 322, a plurality of first switch units 323, and a second switch unit 324.

[0054] Each switch peripheral port 322 is electrically connected to the RF signal common terminal 321 through a first switch unit 323 respectively; the second end of the 0-ohm branch 31 is connected to one of the switch peripheral ports 322, and the corresponding switch peripheral port 322 is grounded through the second switch unit 324.

[0055] When the second antenna radiator 2 performs satellite communication, the second switch unit 324 is closed, and the 0-ohm branch 31 is conducted to the ground through the switch peripheral port 322 and the second switch unit 324.

[0056] With the above arrangement, the feeding network 3 can switch different tuning states by controlling the conduction or disconnection of different first switch units 323 in the RF switch 32, so that the first antenna radiator 1 can operate in different frequency bands to meet the operating requirements of the first antenna radiator 1.

[0057] When the second antenna radiator 2 performs satellite communication, the second switch unit 324 is closed, so that the 0-ohm branch 31 is conducted to the ground through the switch peripheral port 322 and the second switch unit 324. In this way, the 0-ohm grounding of the first feeding point 11 can be achieved without affecting the tuning performance of the switch peripheral interface when the first antenna radiator 1 is operating.

[0058] Combined with Figure 2 As shown, in some embodiments, the feeding network 3 further includes a feeding circuit 33. One end of the feeding circuit 33 is electrically connected to the first feed source 5, and the second end of the feeding circuit 33 is electrically connected to the first feeding point 11.

[0059] The RF signal common end 321 is electrically connected to the feeding circuit 33. The first end of the 0-ohm branch 31 is electrically connected to the feeding circuit 33 and is electrically connected to the first feeding point 11 through the feeding circuit 33.

[0060] With the above arrangement, the first antenna radiator 1 can electrically connect the RF switch 32, the first feeding point 11 and the first feed source 5 by using the feeding circuit 33 to achieve the working feeding and tuning switching of the first antenna radiator 1, and can control the first feeding point 11 to be grounded through the 0-ohm branch 31 when the second antenna radiator 2 performs satellite communication.

[0061] Exemplarily, the feeding network 3 further includes a second feed source (not shown in the figure), and the second feed source is electrically connected to the second feeding point (not shown in the figure) of the second antenna radiator 2 for exciting the second antenna radiator 2 to achieve satellite communication.

[0062] Combined with Figure 2 As shown, in some embodiments, the feeding circuit 33 includes a first capacitor element C1, a second capacitor element C2, a first inductor element L1 and a second inductor element L2.

[0063] The first feed source 5 is respectively electrically connected to one end of the first capacitor element C1 and one end of the first inductor element L1. The other end of the first capacitor element C1 is grounded. The other end of the first inductor element L1 is respectively electrically connected to the first end of the 0-ohm branch 31 and one end of the second capacitor element C2. The other end of the second capacitor element C2 is respectively electrically connected to the RF signal common end 321, one end of the second inductor element L2 and the first feeding point 11, and the other end of the second inductor element L2 is grounded.

[0064] With the above arrangement, the feeding circuit 33 can use the first capacitive element C1, the second capacitive element C2, the first inductive element L1 and the second inductive element L2 to electrically connect the RF switch 32, the first feeding point 11 and the first feed source 5, meeting the tuning operation requirements of the first antenna radiator 1.

[0065] As shown in Figure 2 In some embodiments, the feeding circuit 33 further includes at least one third inductive element L3. One end of the at least one third inductive element L3 is electrically connected to a switch peripheral port 322, and the other end of the at least one third inductive element L3 is grounded.

[0066] In this embodiment, the switch peripheral ports 322 of the RF switch 32 are electrically grounded through the third inductive element L3 respectively, so that each switch peripheral port 322 can be turned on or off by using the corresponding first switching element to switch different tuning states.

[0067] Exemplarily, the RF switch 32 includes four switch peripheral ports 322. One of the switch peripheral ports 322 is connected to the 0-ohm branch 31, and the remaining three switch peripheral ports 322 are electrically grounded through a third inductive element L3 respectively. Among them, the inductance values of the third inductive elements L3 connected to different switch peripheral ports 322 can be the same or different.

[0068] As shown in Figure 1 In some embodiments, a slit structure 4 is provided between the first antenna radiator 1 and the second antenna radiator 2; the length of the first antenna radiator 1 is L1, and the distance between the first feeding point 11 and the slit structure 4 is L2, where the value range of L1 / L2 is 2 - 4.

[0069] With the above arrangement, the first antenna radiator 1 and the second antenna radiator 2 are arranged head-to-head by using the slit structure 4, and when the length L1 of the first antenna radiator 1 and the distance L2 between the first feeding point 11 and the slit structure 4 meet the above value range, the antenna assembly can achieve good satellite communication performance, and the radiation performance of the first antenna radiator 1 can also be guaranteed.

[0070] In some possible implementation manners, the value of L1 / L2 is, for example, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, etc.

[0071] As shown in Figure 1As shown, in some embodiments, the length of the second antenna radiator 2 is L3, where the value range of L3 / L1 is 1.5 - 2.3. When the length L3 of the second antenna radiator 2 and the length L1 of the first antenna radiator 1 satisfy the above ratio range, the antenna assembly can achieve good satellite communication performance, and the radiation performance of the first antenna radiator 1 can also be guaranteed.

[0072] In some possible implementation manners, the value of L3 / L2, for example, is 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, etc.

[0073] In some embodiments, the first antenna radiator 1 is used to implement MHB+N78 band communication. Among them, the MHB band is mainly related to 5G millimeter-wave technology, which is a frequency range from 30 GHz to 300 GHz, and the N78 band is an important band in the 5G network, and its band range is 3.3 GHz to 3.8 GHz.

[0074] To reflect the working performance of the antenna assembly provided by the embodiments of the present invention, the S11 parameters and radiation efficiency of the antenna assembly in the MHB band (specifically B1, B3, B40, B41) and the N78 band are tested. Refer to Figure 4 As shown, the S11 parameters of the antenna assembly in the B1, B3, B40, B41, and N78 bands are all lower than the minimum working requirements, and the separation of B3TX and B3RX is achieved, which is beneficial to improving the transceiver performance of the antenna assembly in the B1 band, and the antenna assembly has better coverage performance. Refer to Figure 5 As shown, the radiation efficiency of the antenna assembly in the B1, B3, B40, B41, and N78 bands is all lower than -4 dB, and it has better radiation performance.

[0075] On the other hand, this embodiment provides an electronic device, and the electronic device includes the antenna assembly of the present invention.

[0076] The electronic device of this embodiment adopts the antenna assembly of the present invention and has all the beneficial technical effects of the present invention.

[0077] Combined with Figure 3 As shown, in some embodiments, the electronic device further includes a machine body frame 100, and the first antenna radiator 1 and the second antenna radiator 2 are respectively located at the top of the machine body frame 100.

[0078] It should be noted that in the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0079] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present utility model.

[0080] The above are only the embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An antenna assembly, characterized in that, The antenna assembly includes: a first antenna radiator (1), a second antenna radiator (2), and a feeding network (3); The first antenna radiator (1) and the second antenna radiator (2) are arranged head-to-head, and the second antenna radiator (2) is used to implement satellite communication; The first antenna radiator (1) includes a first feeding point (11), and the feeding network (3) is electrically connected to the first feeding point (11); The feeding network (3) includes a 0-ohm branch (31). The first end of the 0-ohm branch (31) is electrically connected to the first feeding point (11), and the second end of the 0-ohm branch (31) is grounded. When the second antenna radiator (2) conducts satellite communication, the 0-ohm branch (31) is turned on.

2. The antenna assembly according to claim 1, wherein The feeding network (3) includes a radio frequency switch (32). The radio frequency switch (32) includes a radio frequency signal common terminal (321), a plurality of switch peripheral ports (322), a plurality of first switch units (323), and a second switch unit (324); Each of the switch peripheral ports (322) is electrically connected to the radio frequency signal common terminal (321) through one of the first switch units (323); the second end of the 0-ohm branch (31) is connected to one of the switch peripheral ports (322), and the corresponding switch peripheral port (322) is grounded through the second switch unit (324); when the second antenna radiator (2) conducts satellite communication, the second switch unit (324) is closed, and the 0-ohm branch (31) is conducted to the ground through the switch peripheral port (322) and the second switch unit (324).

3. The antenna assembly according to claim 2, wherein The feeding network (3) further includes a feeding circuit (33). One end of the feeding circuit (33) is electrically connected to a first feed source (5), and the second end of the feeding circuit (33) is electrically connected to the first feeding point (11); The radio frequency signal common terminal (321) is electrically connected to the feeding circuit (33). The first end of the 0-ohm branch (31) is electrically connected to the feeding circuit (33) and is electrically connected to the first feeding point (11) through the feeding circuit (33).

4. The antenna assembly according to claim 3, characterized in that, The feeding circuit (33) includes a first capacitor element (C1), a second capacitor element (C2), a first inductor element (L1), and a second inductor element (L2); The first feed source (5) is electrically connected to one end of the first capacitor element (C1) and one end of the first inductor element (L1) respectively. The other end of the first capacitor element (C1) is grounded. The other end of the first inductor element (L1) is electrically connected to the first end of the 0-ohm branch (31) and one end of the second capacitor element (C2) respectively. The other end of the second capacitor element (C2) is electrically connected to the radio frequency signal common terminal (321), one end of the second inductor element (L2), and the first feeding point (11) respectively. The other end of the second inductor element (L2) is grounded.

5. The antenna assembly according to claim 4, wherein The feeding circuit (33) further includes at least one third inductance element (L3). One end of the at least one third inductance element (L3) is electrically connected to one of the switch peripheral ports (322), and the other end of the at least one third inductance element (L3) is grounded.

6. The antenna assembly according to any one of claims 1 to 5, characterized in that A slit structure (4) is provided between the first antenna radiator (1) and the second antenna radiator (2); the length of the first antenna radiator (1) is L1, and the distance between the first feeding point (11) and the slit structure (4) is L2, where the value range of L1 / L2 is 2 - 4.

7. The antenna assembly according to claim 6, wherein The length of the second antenna radiator (2) is L3, where the value range of L3 / L1 is 1.5 - 2.

3.

8. The antenna assembly according to claim 1, wherein The first antenna radiator (1) is used to implement MHB+N78 band communication.

9. An electronic device, characterized in that, The electronic device includes the antenna assembly according to any one of claims 1 to 8.

10. The electronic device according to claim 9, wherein The electronic device further includes a machine body frame (100), and the first antenna radiator (1) and the second antenna radiator (2) are respectively located at the top of the machine body frame (100).

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