CN118508045A

CN118508045A - Antenna assembly and intelligent terminal

Info

Publication number: CN118508045A
Application number: CN202410686334.2A
Authority: CN
Inventors: 郑磊; 王坤; 尤文杰; 李鸿
Original assignee: Shenzhen Transsion Holdings Co Ltd
Current assignee: Shenzhen Transsion Holdings Co Ltd
Priority date: 2024-05-29
Filing date: 2024-05-29
Publication date: 2024-08-16

Abstract

The application provides an antenna component, which is applied to an intelligent terminal connected with a main board and an auxiliary board through a rotating shaft, and comprises the following components: a low-frequency antenna provided on the main board side and a low-frequency antenna provided on the sub board side; and the flexible connecting wire penetrates through the rotating shaft and connects the low-frequency antenna on the side of the auxiliary board with the low-frequency antenna on the side of the main board. Through the technical scheme, the flexible connecting wire can be utilized to connect the low-frequency antenna on the side of the auxiliary board with the low-frequency antenna on the side of the main board, so that the space on the side of the auxiliary board is effectively utilized to set the low-frequency antenna, and the low-frequency antenna of the multi-antenna assembly is more reasonably laid out under the condition that various antennas all need to be laid out.

Description

Antenna assembly and intelligent terminal

Technical Field

The application relates to the technical field of communication, in particular to an antenna assembly and an intelligent terminal.

Background

At present, the conventional scheme of the antenna assembly of the intelligent terminal in the market is similar to a large-screen straight-plate mobile phone in the whole machine state when in an unfolding state, the antenna is arranged on one side of a main board, and the scheme of the antenna assembly of the whole machine is basically the same as that of a common mobile phone. Only when the antenna is arranged, the antenna scheme is mainly arranged on three sides of the whole machine due to the rotating shaft, and the fourth side is used by the rotating shaft and cannot be used for arranging the antenna.

The low-frequency antenna is widely applied to the terminal because the low-frequency signal transmitted by the low-frequency antenna has stronger penetrating power and longer transmission distance.

Compared with the common terminal, the intelligent terminal has the advantages that one side of the antenna is less in layout, the space of the antenna is tense, the requirements on layout and integration of the antenna are high, and the design of the low-frequency antenna of the multi-antenna assembly is not facilitated under the condition that various antennas are required to be laid out.

The foregoing description is provided for general background information and does not necessarily constitute prior art.

Disclosure of Invention

Aiming at the technical problems, the application provides an antenna assembly and an intelligent terminal, and aims to solve the problems that in the prior art, the antenna layout space of the intelligent terminal is insufficient, and the design of a low-frequency antenna of a multi-antenna assembly is not facilitated.

In order to solve the technical problems, the application provides an antenna assembly, which is applied to an intelligent terminal, wherein the intelligent terminal comprises a main board, an auxiliary board and a rotating shaft;

The antenna assembly includes:

A low-frequency antenna arranged on the main board side;

a low-frequency antenna provided on the sub-board side;

And the flexible connecting wire penetrates through the rotating shaft and connects the low-frequency antenna on the side of the auxiliary board with the low-frequency antenna on the side of the main board.

Optionally, a first rib position is arranged on the first metal middle frame of the main board, a first fracture is arranged between the first rib position and the second metal middle frame of the main board, and a second fracture is arranged between the first rib position and the third metal middle frame of the main board;

The low-frequency antenna provided on the main board side includes at least:

The first low-frequency antenna is arranged between the first rib position and the first fracture and is connected with the metal middle frame between the first rib position and the first fracture;

The second low-frequency antenna is arranged between the first rib position and the second fracture and is connected with the metal middle frame between the first rib position and the second fracture.

Optionally, the first low-frequency antenna comprises a first feed source, a first switch and a first matching network;

One side of the first switch is connected with one side of the first matching network, and the other side of the first switch is connected with the first feed source and used for adjusting the electric length of the first low-frequency antenna; the other side of the first matching network is connected with a metal middle frame between the first rib position and the first fracture; and/or the number of the groups of groups,

The second low-frequency antenna comprises a second feed source and a second matching network;

One side of the second matching network is connected with the second feed source, and the other side of the second matching network is connected with the metal middle frame between the first rib position and the second fracture.

Optionally, a second rib position is arranged on the first metal middle frame of the auxiliary plate, a third fracture is arranged between the second rib position and the third metal middle frame of the auxiliary plate, and a fourth fracture is arranged between the second rib position and the second metal middle frame of the auxiliary plate;

the low-frequency antenna provided on the sub-board side includes at least:

the third low-frequency antenna is arranged between the third metal middle frame of the auxiliary plate and the third fracture and is connected with the metal middle frame between the third metal middle frame of the auxiliary plate and the third fracture;

the fourth low-frequency antenna is arranged between the second rib position and the fourth fracture and is connected with the metal middle frame between the second rib position and the fourth fracture.

Optionally, the third low-frequency antenna comprises a third feed source, a second switch and a third matching network;

One side of the second switch is connected with one side of the third matching network, and the other side of the second switch is connected with the third feed source and used for adjusting the electrical length of the third low-frequency antenna; the other side of the third matching network is connected with a metal middle frame between the second metal middle frame of the auxiliary plate and the third fracture; and/or the number of the groups of groups,

The fourth low-frequency antenna comprises a fourth feed source, a third switch and a fourth matching network;

one side of the third switch is connected with one side of the fourth matching network, and the other side of the third switch is connected with the fourth feed source and used for adjusting the electrical length of the fourth low-frequency antenna; and the other side of the fourth matching network is connected with a metal middle frame between the second rib position and the fourth fracture.

Optionally, a third rib is arranged at the position of the intersection point of the second metal middle frame of the auxiliary plate and the rotating shaft, and at least one fifth fracture is arranged on the second metal middle frame of the auxiliary plate;

The auxiliary plate is further provided with a first Wifi antenna, and the first Wifi antenna is arranged between the third rib position and the fifth fracture close to the rotating shaft and is connected with the third rib position and the metal middle frame between the fifth fracture close to the rotating shaft.

Optionally, the first Wifi antenna includes a fifth feed source, a fourth switch, and a fifth matching network;

One side of the fourth switch is connected with one side of the fifth matching network, and the other side of the fourth switch is connected with the fifth feed source and used for adjusting the electric length of the first Wifi antenna; and the other side of the fifth matching network is connected with the metal middle frame between the third rib position and the fifth fracture close to the rotating shaft.

Optionally, a fourth rib is arranged at the position of the intersection point of the second metal middle frame of the main board and the rotating shaft, and at least one sixth fracture is arranged on the second metal middle frame of the auxiliary board;

The main board is also provided with a second Wifi antenna, and the second Wifi antenna is arranged between the fourth rib position and a sixth fracture close to the rotating shaft; and/or the number of the groups of groups,

The mainboard is also provided with a third Wifi antenna, and the third Wifi antenna is arranged between the first fracture and the second metal middle frame of the mainboard.

Optionally, the second Wifi antenna and the third Wifi antenna are built-in radio frequency antennas, and are disposed on an antenna bracket of the intelligent terminal.

In addition, in order to achieve the above object, the present application further provides an intelligent terminal, including: an antenna assembly as claimed in any preceding claim.

As described above, the antenna assembly of the present application is applied to an intelligent terminal connecting a main board and an auxiliary board through a rotation shaft, and includes: a low-frequency antenna provided on the main board side and a low-frequency antenna provided on the sub board side; and the flexible connecting wire penetrates through the rotating shaft and connects the low-frequency antenna on the side of the auxiliary board with the low-frequency antenna on the side of the main board. Through the technical scheme, the flexible connecting wire can be utilized to connect the low-frequency antenna on the side of the auxiliary board with the low-frequency antenna on the side of the main board, so that the space on the side of the auxiliary board is effectively utilized to set the low-frequency antenna, and the low-frequency antenna of the multi-antenna assembly is more reasonably laid out under the condition that various antennas all need to be laid out.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a low-frequency antenna provided in the present application disposed on an intelligent terminal;

fig. 2 is a schematic diagram of a connection line of the low-frequency antenna provided by the application and arranged on the intelligent terminal;

fig. 3 is a schematic structural diagram of an intelligent terminal in an unfolded state in the prior art;

fig. 4 is a schematic structural diagram of an intelligent terminal in a folded state in the prior art;

fig. 5 is a schematic structural diagram of a metal middle frame of an intelligent terminal used in the antenna assembly of the present application;

Fig. 6 is a schematic structural diagram of a first low frequency antenna and a second low frequency antenna according to the present application;

fig. 7 is a schematic structural diagram of a third low frequency antenna and a fourth low frequency antenna in the present application;

Fig. 8 is a schematic structural diagram of a first Wifi antenna in the present application;

fig. 9 is a schematic structural diagram of a first Wifi antenna and a fourth low frequency antenna in the present application;

fig. 10 is a schematic structural diagram of a second Wifi antenna and a third Wifi antenna in the present application;

fig. 11 is a schematic structural diagram of a second Wifi antenna and a third Wifi antenna on the intelligent terminal in the present application;

fig. 12 is a schematic structural diagram of a first rf antenna and a second rf antenna on the smart terminal according to the present application;

fig. 13 is a schematic structural diagram of a third rf antenna and a fourth rf antenna on the smart terminal according to the present application;

Fig. 14 is a schematic structural diagram of a fifth rf antenna, a first low-frequency antenna, and a seventh rf antenna on the smart terminal according to the present application;

Fig. 15 is a schematic structural diagram of an eighth rf antenna and a second low-frequency antenna on the smart terminal according to the present application;

Fig. 16 is a schematic structural diagram of a tenth rf antenna and a third low frequency antenna on the smart terminal according to the present application.

FIG. 17 is a schematic diagram of a hardware architecture of an intelligent terminal implementing various embodiments of the present application;

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments. Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element, and furthermore, elements having the same name in different embodiments of the application may have the same meaning or may have different meanings, the particular meaning of which is to be determined by its interpretation in this particular embodiment or by further combining the context of this particular embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or", "and/or", "including at least one of", and the like, as used herein, may be construed as inclusive, or mean any one or any combination. For example, "including at least one of: A. b, C "means" any one of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C ", again as examples," A, B or C "or" A, B and/or C "means" any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

In the following description, suffixes such as "module", "part" or "unit" for representing elements are used only for facilitating the description of the present application, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.

The intelligent terminal may be implemented in various forms. For example, the smart terminals described in the present application may include smart terminals provided with WiFi antennas such as mobile phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal DIGITALASSISTANT, PDA), portable media players (Portable MEDIA PLAYER, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and the like.

In the following description, an intelligent terminal will be described as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for a mobile purpose.

First embodiment

Fig. 1 is a schematic structural diagram of an antenna assembly according to an embodiment of the application. An embodiment of the antenna assembly of the present application is presented based on fig. 1.

In an embodiment, applied to an intelligent terminal connecting a main board 30 and a sub-board 40 through a rotation shaft 20, the antenna assembly includes: a low-frequency antenna FL disposed on the main board side and on the sub board side; and a flexible connection line 10 penetrating the rotation shaft 20 and connecting the low-frequency antenna FL on the side of the sub-board with the low-frequency antenna FL on the side of the main board.

Referring to fig. 2 and 3, the intelligent terminal may be a terminal having a folding function. The low frequency device in the smart terminal is generally disposed inside the main board 30, and a metal center on the main board side may be used as a radiator of the low frequency antenna FL. Since one side of the smart terminal main board 30 is used for setting the rotation shaft, the side is not provided with the metal middle frame which can be used as a radiator due to the folding relationship, and thus the size of the metal middle frame of the smart terminal which can be provided with the low frequency antenna FL becomes small. Considering that the antenna components in the terminal comprise more antennas, the antennas for Wifi communication, the antennas for bluetooth communication, the antennas for GPS communication and the like, the more the communication modes of the intelligent terminal are, the more the corresponding antennas are. In the case where the metal center size of the low frequency antenna FL that can be provided in the smart terminal becomes small, the entire antenna assembly may need to be integrally rearranged, and even a part of the antennas may not be provided due to insufficient space.

Alternatively, the main board 30 and the sub-board 40 are connected by the rotation shaft 20, and the main board 30 and the sub-board 40 constitute a large plane as a main screen of the terminal in the case that the rotation shaft fully expands the main board 30 and the sub-board 40. Referring to fig. 4, when the main board 30 and the sub-board 40 are completely closed by the rotation shaft 20, the main board 30 and the sub-board 40 are fixed by magnets on both sides, and the main screen is folded inside, so that the sub-screen is displayed.

Optionally, the metal middle frame of the intelligent terminal can be used as a radiator, so that the metal middle frame on the main board side can be directly connected with the low-frequency device through a connecting wire, and the metal middle frame is used as the radiator to radiate the low-frequency signal of the low-frequency device. The flexible connection wire 10 is a connection wire which is flexible and flat and can be used for transmitting radio frequency signals, and the flexible radio frequency connection wire 10 can be made of any one material of a flexible circuit board (Flexible PrintedCircuit Board, FPC), modified polyimide (Modified Polyimide, MPI) or liquid crystal polymer (Liquid Crystal Polymer, LCP). Considering that the performance of FPC is general and LCP is expensive, the flexible connection wire 10 is provided according to specific requirements. LCP may be used, for example, in situations where low frequency signaling performance is a high requirement. Alternatively, the flexible connection wire 10 is illustrated in fig. 2 by way of example as an over-axis MPI.

Optionally, in consideration of the band range of the low-frequency antenna, the receiving and transmitting effects of the radio-frequency signal are poor, especially in remote areas, the transmission interference of the low-frequency radio-frequency signal is extremely large, and the radio-frequency signal is very weak and is difficult to effectively transmit the radio-frequency information. In this embodiment, a plurality of the low-frequency antennas may be disposed in the antenna assembly, and the low-frequency antennas may be disposed on the main board and/or the sub-board side. The low-frequency radio frequency signal can realize multiple input and multiple output, so that the performance of receiving or transmitting the low-frequency radio frequency signal by the intelligent terminal is improved.

Alternatively, the low-frequency antenna is provided on both the main board side and the sub-board side. Optionally, four low-frequency antennas can be arranged, two radio-frequency antennas can be arranged on the main board side and directly connected with the radio-frequency device through a data line, and the other two radio-frequency antennas can be arranged on the auxiliary board side and connected with the radio-frequency device on the main board side through the data line and the flexible connecting line 10, and the four low-frequency antennas can be used for realizing the multi-input multi-output of low-frequency radio-frequency signals, so that the transmission effect of the intelligent terminal on the low-frequency radio-frequency signals is improved.

Optionally, not only the low frequency antenna, under the condition that there is the demand, the radio frequency antenna of other frequency wave bands can set up a plurality ofly equally, utilizes a plurality of radio frequency antennas to form the multiple input multiple output to promote intelligent terminal's overall performance.

Alternatively, the low-frequency antenna FL provided on the sub-board side may be directly connected to one end of the flexible connection line 10 through a connection line, the other end of the flexible connection line 10 is connected to the low-frequency device on the main board side, and the low-frequency antenna FL on the sub-board side is connected to the low-frequency device on the main board side through the flexible connection line 10 and the connection line, so that the low-frequency device on the main board side may radiate low-frequency signals by using the low-frequency antenna FL on the sub-board side. Considering that the auxiliary board side is also provided with a three-sided metal middle frame, the metal middle frame is used as a radiator, then a common connecting wire is used for establishing connection between the radiator and the flexible connecting wire 10, and then the flexible connecting wire 10 is connected with the low-frequency device on the main board side. At this time, not only the metal middle frame on the main board side can manufacture the low-frequency antenna FL, but also the metal middle frame on the auxiliary board side can manufacture the low-frequency antenna FL, so that the layout space of the low-frequency antenna FL is greatly increased, the layout of the low-frequency antenna FL is more flexible, the number of the low-frequency antennas FL can be increased, and the performance of the intelligent terminal is further improved.

The antenna assembly in this embodiment is applied to the intelligent terminal who connects mainboard and subplate through the pivot, includes: a low-frequency antenna provided on the main board side and a low-frequency antenna provided on the sub board side; and the flexible connecting wire penetrates through the rotating shaft and connects the low-frequency antenna on the side of the auxiliary board with the low-frequency antenna on the side of the main board. Through the technical scheme, the flexible connecting wire can be utilized to connect the low-frequency antenna on the side of the auxiliary board with the low-frequency antenna on the side of the main board, so that the space on the side of the auxiliary board is effectively utilized to set the low-frequency antenna, and the low-frequency antenna of the multi-antenna assembly is more reasonably laid out under the condition that various antennas all need to be laid out.

Second embodiment

The embodiment of the antenna assembly of the present application is presented based on the above embodiment of the antenna assembly, referring to fig. 5, in the case where the main board 30 and the sub-board 40 are completely unfolded, the main board 30 and the metal center of the sub-board 40 are completely symmetrical, and in the folded state, the metal center and the break on the metal center are aligned. In fig. 6, a first rib B1 is disposed at the middle position of the first metal middle frame A1 of the main board 30, a first fracture C1 is disposed between the first rib B1 and the second metal middle frame A2 of the main board 30, and a second fracture C2 is disposed between the first rib B1 and the third metal middle frame A3 of the main board 30;

Optionally, in fig. 5, the intelligent terminal includes 15 metal midframes, namely, a metal midframe 101 to a metal midframe 115.

Alternatively, referring to fig. 6, the low frequency antenna FL disposed on the main board side may include a first low frequency antenna FL1, and the first low frequency antenna FL1 is disposed between the first rib B1 and the first break C1 and is connected to the metal middle frame 106 between the first rib B1 and the first break C1.

Optionally, a second low-frequency antenna FL2 is disposed between the first rib B1 and the second break C2, and is connected to the metal middle frame 107 between the first rib B1 and the second break C2.

Optionally, in view of the design of the metal middle frame of the smart terminal, there may be a connection between the radiators of two adjacent radio frequency antennas, in which case there may be some interference between the radiators of adjacent radio frequency antennas. In order to solve the problem, in this embodiment, when the radiators of two adjacent antennas are connected, a rib may be disposed between the radiators of the two adjacent radio frequency antennas; and the rib is used for connecting the radiator to the metal middle frame so as to isolate the radiators of two adjacent radio frequency antennas and realize isolation between the adjacent radio frequency antennas.

Alternatively, the first low-frequency antenna FL1 may be a low-frequency antenna supporting multiple input multiple output, and the metal middle frame 106 between the first rib B1 and the first break C1 is used as a radiator. The first low-frequency antenna FL1 may be connected to the metal middle frame 106 through a spring pin on the PCB board, and optionally, the first low-frequency antenna FL1 may be implemented with the same radiator when designing, that is, the metal middle frame 106 between the first rib B1 and the first break C1 is used as the radiator. The second low-frequency antenna FL2 may be a radio-frequency antenna supporting a mimo function, the second low-frequency antenna FL2 may be connected to a circuit related to a low-frequency radio-frequency device, and the metal middle frame 107 between the first rib B1 and the second slot C2 is used as a radiator; alternatively, the first low frequency antenna FL1 and the second low frequency antenna FL2 may be used for transmission of low frequency signals.

Optionally, in fig. 6, the first low frequency antenna includes a first feed, a first switch SW3, and a first matching network M6; one side of the first switch SW3 is connected to one side of the first matching network M6, and the other side of the first switch SW3 is connected to the first feed source, so as to adjust the electrical length of the first low-frequency antenna FL 1; the other side of the first matching network M6 is connected to the metal middle frame 106 between the first rib B1 and the first fracture C1.

Alternatively, considering that the operating frequency of the low frequency antenna is set at an optimal operating frequency during actual use, signals within a certain range of the optimal operating frequency may be received, and only the signal may not be effective. In order to further improve the performance of the antenna, in this embodiment, the working frequency of the low-frequency antenna may be adjusted in a small range, so as to improve the bandwidth of the low-frequency or medium-high-frequency antenna, and further improve the signal receiving performance of the low-frequency or medium-high-frequency radio-frequency antenna.

Alternatively, in order to solve the above-described problem, a first switch SW3 having a single-pole, multi-throw function may be provided on the first low frequency antenna FL 1; the whole electric length of the radio frequency antenna is adjusted through the switch, so that the working frequency of the first low frequency antenna FL1 is adjusted to tune the first low frequency antenna FL1, the range of the frequency band of the low frequency antenna is widened, and the bandwidth and the performance of the low frequency antenna are improved. Optionally, a switch of 4×spst, i.e. the first switch SW3, may be added to the matching circuit of the low frequency antenna. The electrical length is a measure of the radio wavelength that an antenna can receive. The electrical length does not represent the actual length of the antenna, and the electrical length of the antenna needs to be determined in consideration of the wavelength of the radio signal to be received or transmitted when designing the antenna. In the design of the antenna, the reasonable choice of the electrical length can enhance the signal receiving or transmitting effect of the antenna. Antennas of different electrical lengths may be used for different radio bands and may achieve different communication distances. The electrical length of the antenna has a great influence on the performance of the antenna.

Optionally, the first switch SW3 may be combined with the metal middle frame 106 between the first rib B1 and the first break C1, and when the first switch SW3 is located at a different position, the electrical length of the first low-frequency antenna FL1 may be adjusted, so as to adjust the working frequency of the first low-frequency antenna FL1 to tune the first low-frequency antenna FL1, thereby widening the frequency range of the low-frequency antenna, and improving the bandwidth and performance of the low-frequency antenna.

Alternatively, the primary function of a matching network is typically to match the impedance between the signal source and the connected device to increase the power of the signal and reduce feedback losses. In this embodiment, the matching network M may also be used to isolate different rf antennas. The first matching network M6 is used to adjust the antenna bandwidth and the isolation between the radio frequency antennas. Considering that other radio frequency antennas may be provided in the vicinity of the first low frequency antenna FL1, interference between the antennas may occur in the case where the distance between the two antennas is close. In order to solve the problem, in the present embodiment, a first matching network M6 may be disposed in the first low-frequency antenna FL1, and the first matching network M6 may effectively adjust the isolation between the first low-frequency antenna FL1 and other radio-frequency antennas, so as to avoid interference of other radio-frequency antennas to the first low-frequency antenna FL 1. Of course, in the actual use process, the isolation between the first low-frequency antenna FL1 and other radio-frequency antennas can be adjusted by designing an LC circuit.

Optionally, in fig. 6, the second low frequency antenna FL2 includes a second feed source and a second matching network M9; one side of the second matching network M9 is connected to the second feed source, and the other side of the second matching network M9 is connected to the metal middle frame 107 between the first rib B1 and the second fracture C2.

Optionally, the second matching network M9 is a circuit for adjusting the bandwidth of the second low frequency antenna FL2 and the isolation between the radio frequency antennas. Considering that the vicinity of the second low-frequency antenna FL2 may be provided with other radio-frequency antennas as well, interference between the antennas may still occur in the case where the distance between the two antennas is close. In this embodiment, a second matching network M9 may be disposed in the second low-frequency antenna FL2, where the second matching network M9 may effectively adjust the isolation between the second low-frequency antenna FL2 and other radio-frequency antennas, so as to avoid interference of other radio-frequency antennas on the second low-frequency antenna FL 2. Of course, in the actual use process, the isolation between the second low-frequency antenna FL2 and other radio-frequency antennas can be adjusted by designing an LC circuit.

Alternatively, referring to fig. 7 and 9, in the present embodiment, a second rib B2 is disposed at a middle position of the first metal middle frame A1 of the sub-plate 40, a third fracture C3 is disposed between the second rib B2 and the third metal middle frame A3 of the sub-plate 40, and a fourth fracture C4 is disposed between the second rib B2 and the second metal middle frame A2 of the sub-plate 40.

Alternatively, the low frequency antenna disposed on the side of the sub-panel may include a third low frequency antenna FL3, and the third low frequency antenna FL3 is disposed between the third metal middle frame A3 of the sub-panel 40 and the third break and is connected with the metal middle frame 111 between the third metal middle frame A3 of the sub-panel 40 and the third break C3.

Alternatively, the low-frequency antenna disposed on the side of the sub-panel may include a fourth low-frequency antenna FL4, where the fourth low-frequency antenna FL4 is disposed between the second rib B2 and the fourth break C4 and is connected to the metal middle frame 113 between the second rib B2 and the fourth break C4.

Optionally, the third low-frequency antenna FL3 and the fourth low-frequency antenna FL4 are connected to the low-frequency antenna FL on the motherboard side through flexible connection lines.

Alternatively, the third low frequency antenna FL3 and the fourth low frequency antenna FL4 may be low frequency antennas supporting multiple input multiple output; optionally, the third low-frequency antenna FL3 uses a metal middle frame between the third metal middle frame A3 and the third fracture C3 of the sub-board 40 as a radiator, and the fourth low-frequency antenna FL4 uses a metal middle frame 111 between the second rib B2 and the fourth fracture C4 as a radiator. Since the third low-frequency antenna FL3 and the fourth low-frequency antenna FL4 are both on the sub-board side, in order to perform low-frequency communication by the third low-frequency antenna FL3 and the fourth low-frequency antenna FL4, it is necessary to establish connection between the third low-frequency antenna FL3 and the fourth low-frequency antenna FL4 and the low-frequency antenna FL or the low-frequency device on the main board side, respectively, so that transmission of the low-frequency signal is performed.

Alternatively, the connection between the low-frequency antenna FL on the sub-board side and the radio-frequency device or the radio-frequency antenna FL on the main board side may still be established by a flexible connection line.

In fig. 7, the third low frequency antenna FL3 includes: a third feed, a second switch SW8 and a third matching network M11; one side of the second switch SW8 is connected to one side of the third matching network M11, and the other side of the second switch SW8 is connected to the third feed source, so as to adjust the electrical length of the third low-frequency antenna FL 3; the other side of the third matching network M11 is connected to the metal middle frame 111 between the third metal middle frame A3 of the secondary board and the third fracture C3.

Alternatively, in order to adjust the bandwidth and performance of the third low frequency antenna FW3, a second switch SW8 having a single-pole, multi-throw function may be provided on the third low frequency antenna FW 3; the second switch SW8 is used for adjusting the electric length of the radio frequency antenna, so that the working frequency of the third low-frequency antenna FW3 is adjusted to tune the third low-frequency antenna FW3, the frequency range of the low-frequency antenna is widened, and the bandwidth and performance of the low-frequency antenna are improved. Optionally, a switch of 4×spst, i.e. a second switch SW8, may be added to the matching circuit of the low frequency antenna.

Optionally, the second switch SW8 may be configured to adjust the electrical length of the radio frequency antenna by combining the metal middle frame 111 between the third metal middle frame A3 of the auxiliary board and the third break joint C3 when the single pole of the second switch SW8 is thrown at a different position, so as to adjust the working frequency of the second switch SW8 to tune the second switch SW8, thereby widening the frequency range of the low frequency antenna, and improving the bandwidth and performance of the low frequency antenna.

Optionally, the third matching network M11 is used to adjust the antenna bandwidth and the isolation between the radio frequency antennas. Considering that other radio frequency antennas may be provided in the vicinity of the third low frequency antenna FL3, interference between the antennas may occur in the case where the distance between the two antennas is close.

In this embodiment, a third matching network M11 may be disposed in the third low-frequency antenna FL3, and the third matching network M11 may effectively adjust the isolation between the third low-frequency antenna FL3 and other radio-frequency antennas, so as to avoid interference of other radio-frequency antennas to the third low-frequency antenna FL 3. In the actual use process, the isolation between the third low-frequency antenna FL3 and other radio-frequency antennas can be adjusted by designing an LC circuit.

Optionally, in fig. 7, the fourth low frequency antenna FL4 includes: a fourth feed, a third switch SW9 and a fourth matching network M12; one side of the third switch SW9 is connected to one side of the fourth matching network M12, and the other side of the third switch SW9 is connected to the fourth feed source, so as to adjust the electrical length of the fourth low-frequency antenna; the other side of the fourth matching network M12 is connected to the metal middle frame 113 between the second rib B2 and the fourth fracture C4.

Optionally, in order to adjust the bandwidth and performance of the fourth low frequency antenna FL4, a switch may be provided on the fourth low frequency antenna FL 4; the whole electric length of the radio frequency antenna is adjusted through the switch, so that the working frequency of the fourth low frequency antenna FL4 is adjusted to tune the fourth low frequency antenna FL4, the range of the frequency band of the low frequency antenna is widened, and the bandwidth and the performance of the low frequency antenna are improved. Optionally, a switch of 4×spst, i.e. a second switch SW8, may be added to the matching circuit of the low frequency antenna.

Optionally, the third switch SW9 may be combined with the metal middle frame 113 between the second rib B2 and the fourth break C4, so that when the single pole of the third switch SW9 is thrown at different positions, the electrical length of the third switch SW9 may be adjusted, and then the working frequency of the third switch SW9 is adjusted to tune the third switch SW9, thereby widening the frequency range of the low-frequency antenna, and improving the bandwidth and performance of the low-frequency antenna.

Optionally, the fourth matching network M12 is used to adjust the antenna bandwidth and the isolation between the radio frequency antennas. Considering that other radio frequency antennas may be provided in the vicinity of the fourth low frequency antenna FL4, interference between the antennas may occur in the case where the distance between the two antennas is close. In this embodiment, a fourth matching network M12 may be disposed in the fourth low-frequency antenna FL4, and the fourth matching network M12 may effectively adjust the isolation between the fourth low-frequency antenna FL4 and other radio-frequency antennas, so as to avoid interference of other radio-frequency antennas to the fourth low-frequency antenna FL 4. Of course, in the actual use process, the isolation between the fourth low-frequency antenna FL4 and other radio-frequency antennas can be adjusted by designing an LC circuit.

In this embodiment, through set up a plurality of low frequency antennas in intelligent terminal's subplate side, establish the connection through flexible connecting wire and the low frequency antenna or the low frequency device of mainboard side to under the circumstances that all kinds of antennas all need the overall arrangement, more reasonable lay out the low frequency antenna of multi-antenna assembly. In addition, by specifically limiting the positions and structures of the low-frequency antennas on the main board side and the auxiliary board side, the use effect of the low-frequency antennas can be further improved under the condition of reasonably spatially distributing the low-frequency antennas.

Third embodiment

The embodiment of the antenna assembly of the present application is proposed based on the above embodiment of the antenna assembly, optionally, referring to fig. 8 and 9, in this embodiment, a third rib B3 is disposed at a position of an intersection point between the second metal middle frame A2 of the sub-plate 40 and the rotating shaft 20, and at least one fifth fracture C5 is disposed on the second metal middle frame A2 of the sub-plate 40.

Optionally, the auxiliary board is further provided with a first Wifi antenna FW1, and the first Wifi antenna FW1 is disposed between the third rib B3 and the fifth break close to the rotating shaft 20, and is connected with the metal middle frame 115 between the third rib B3 and the fifth break C5 close to the rotating shaft 20.

Optionally, considering when setting up radio frequency antenna on intelligent terminal, still need set up the Wifi antenna, under the space of mainboard side not enough the condition, can also set up Wifi antenna, i.e. first Wifi antenna FW1 in the subplate side, this first Wifi antenna FW1 can also establish the connection through pivot 20 and the Wifi device of mainboard side through flexible connecting wire. The first Wifi antenna FW1 may be a standby Wifi antenna of 2.4G. The first Wifi antenna FW1 is connected to the metal middle frame 115 between the third rib position and the fifth fracture with the smallest distance from the rotating shaft 20 through a spring pin on the PCB board.

Optionally, in fig. 8, the first Wifi antenna FW1 includes: a fifth feed, a fourth switch SW11 and a fifth matching network M13; one side of the fourth switch SW11 is connected with one side of the fifth matching network M13, and the other side of the fourth switch SW11 is connected with the fifth feed source and used for adjusting the electric length of the first Wifi antenna; the other side of the fifth matching network M13 is connected to a metal middle frame 115 between the third rib B3 and the fifth break C5 near the rotating shaft 20.

Optionally, in order to adjust the bandwidth and performance of the first Wifi antenna FW1, a fourth switch SW11 may be disposed on the first Wifi antenna FW 1; the electrical length of the radio frequency antenna is adjusted through the fourth switch SW11, so that the working frequency of the first Wifi antenna FW1 is adjusted to tune the first Wifi antenna FW1, the frequency range of the low-frequency antenna is widened, and the bandwidth and the performance of the low-frequency antenna are improved. Optionally, a switch of 4×spst, that is, a fourth switch SW11 may be added to the first Wifi antenna FW 1.

Optionally, the fourth switch SW11 may be combined with the third rib B3 and the metal middle frame 115 between the fifth break C5 near the rotating shaft 20, so that when the single pole of the fourth switch SW11 is thrown at different positions, the electrical length of the fourth switch SW11 may be adjusted, and then the working frequency of the fourth switch SW11 is adjusted to tune the fourth switch SW11, thereby widening the frequency range of the low-frequency antenna, and improving the bandwidth and performance of the first Wifi antenna FW 1.

Optionally, the fifth matching network M13 is used to adjust the antenna bandwidth and the isolation between the radio frequency antennas. Considering that other radio frequency antennas may be disposed in the vicinity of the first Wifi antenna FW1, interference between the antennas may occur in the case where the distance between the two antennas is close. In this embodiment, a fifth matching network M13 may be disposed in the first Wifi antenna FW1, where the fifth matching network M13 may effectively adjust the isolation between the first Wifi antenna FW1 and other radio frequency antennas, so as to avoid interference of the other radio frequency antennas on the first Wifi antenna FW 1. Optionally, the isolation between the first Wifi antenna FW1 and other radio frequency antennas can be adjusted by designing an LC circuit.

Optionally, in the case of setting the first Wifi antenna FW1, considering two different states of the folded state or the unfolded state, when the user is using, the first Wifi antenna FW1 may be blocked by the user, so that the first Wifi antenna FW1 cannot normally receive or generate a Wifi signal. Optionally, in this embodiment, a Wifi antenna may also be disposed on a motherboard side, and in a folded state of the terminal, the location of the Wifi antenna on the motherboard side is different from the location of the first Wifi antenna FW 1.

Optionally, under the condition that space in the intelligent terminal allows, setting a plurality of radio frequency antennas with the same frequency band can improve the performance of radio frequency signals in the frequency band. The Wifi signal is the most commonly used signal in people's life generally, and under the transmission of Wifi signal's condition relatively poor, user experience can greatly reduced. Optionally, the antenna assembly may include: the plurality of same-frequency Wifi antennas are arranged on the intelligent terminal in a separated layout mode.

Alternatively, considering that the user presses the metal middle frame of the intelligent terminal when using the intelligent terminal, the function of the radio frequency antenna arranged at the pressing position is interfered and even cannot be used. Optionally, the Wifi antenna that sets up on intelligent terminal, when this position was pressed, the Wifi antenna can not receive the Wifi signal according to normal standard to lead to the Wifi signal unable user demand of satisfying. Optionally, when setting up a plurality of same-frequency Wifi antennas, the mode setting of separate overall arrangement can be adopted to same-frequency Wifi antenna to avoid a plurality of same-frequency Wifi to set up together, when receiving to press, a plurality of same-frequency Wifi antennas all can not normally work. And separate the setting with same frequency Wifi antenna, even there is the metal center of a Wifi antenna position department to receive the pressure, leads to the unable normal work of Wifi antenna of this position, still there is the same frequency Wifi antenna of other positions can receive the Wifi signal.

Optionally, considering that the size of the metal middle frame is limited, and the intelligent terminal needs to be provided with various antennas and similar antennas with different frequency bands. Therefore, the number of the same-frequency Wifi antennas is not excessive, for example, two Wifi antennas of 2.4GHZ are arranged in a separated layout, and the two Wifi antennas of 2.4GHZ can simultaneously receive Wifi signals of 2.4GHZ frequency bands under the condition of not being pressed; and when one of the Wifi antennas of 2.4GHZ cannot work normally due to being pressed, the Wifi signal received by the Wifi antenna of 2.4GHZ may not meet the use requirement of the user.

Optionally, when the number of the same-frequency Wifi antennas is two, the antenna assembly further includes: the standby Wifi antenna has the same working frequency band as the same frequency band of the same-frequency Wifi antenna. When one of the two same-frequency Wifi antennas cannot work normally, the standby Wifi antenna can be connected and then work simultaneously with the other Wifi antenna, so that the received Wifi signal can meet the use requirement of a user.

Optionally, a switching process of the standby Wifi antenna and the same-frequency Wifi antenna can be controlled by setting a switch between the same-frequency Wifi antenna and the standby Wifi antenna. The change-over switch can be a single-pole double-throw switch, one end of a fixed contact on one side of the change-over switch can be connected with a radio frequency device, and two contacts on the other side of the change-over switch can be connected with a corresponding Wifi antenna.

Optionally, the change-over switch can be set according to the actual use condition of the intelligent terminal. Optionally, one of the two co-frequency Wifi antennas is often pressed and the other is not pressed, at this time, a switch may be disposed between the often pressed Wifi antenna and the standby Wifi antenna, for switching between the often pressed Wifi antenna and the standby Wifi antenna; and the side of the Wifi antenna which is not pressed does not need to be provided with a change-over switch. Of course, if two same-frequency Wifi antennas may be pressed, a switch needs to be set between the two same-frequency Wifi antennas and the standby Wifi antenna.

Optionally, the corresponding Wifi antennas are also different in consideration that the Wifi antennas can work in different frequency bands, and optionally, a Wifi2.4G antenna, a Wifi5G antenna, a Wifi6E antenna, or the like. In order to meet the signal requirements of all frequency bands, the antenna assembly further comprises: and the different-frequency Wifi antenna with different frequency ranges from the same-frequency Wifi antenna is used for receiving different-frequency Wifi signals. The different-frequency Wifi antenna and the same-frequency Wifi antenna support multiple-input multiple-output functions.

Alternatively, the frequency band of the different-frequency Wifi antenna is not fixed, and may be any frequency band of 2.4G, 5G or 6E. Under the condition that the same-frequency Wifi antenna is arranged on the intelligent terminal, the different-frequency Wifi antenna is only required to be different from the same-frequency Wifi antenna in working frequency band. Optionally, the same-frequency Wifi antenna is a Wifi antenna with a frequency band of 2.4G, and the different-frequency Wifi antenna may be a Wifi antenna with a frequency band of 5G and/or 6E. The number of different frequency Wifi antennas may be a plurality of, optionally, different numbers of Wifi antennas of one 5G frequency band and one 6E frequency band, and Wifi antennas of one 5G frequency band and one 6E frequency band.

Optionally, referring to fig. 10 and 11, a fourth rib B4 is provided at the position of the intersection point between the second metal middle frame A2 of the main board 30 and the rotating shaft 20 in fig. 10 and 11, and at least one sixth fracture C6 is provided on the second metal middle frame A2 of the auxiliary board 40;

Optionally, the secondary board 40 is further provided with a second Wifi antenna FW2 and a third Wifi antenna FW3; the second Wifi antenna FW2 is disposed between the fourth rib B4 and the sixth break C6 near the rotating shaft 20; the third Wifi antenna FW3 is disposed between the first break B1 and the second metal middle frame A2 of the motherboard 30.

Alternatively, two Wifi antennas are provided on the motherboard side in fig. 11, which are a second Wifi antenna FW2 and a third Wifi antenna FW3, respectively. In the use process of the intelligent terminal, even if one Wifi antenna is shielded, other Wifi can still exist to carry out Wifi communication. In fig. 11, the smart terminal is commonly provided with first to twelfth slits C1 to C12.

Optionally, the second Wifi antenna FW2 and the third Wifi antenna FW3 may be 5GWifi antennas supporting multiple input multiple output functions, and 6EWifi antennas supporting multiple input multiple output functions. Optionally, the 6EWifi antenna supporting the multiple input multiple output function has the characteristics of high speed, low delay, wide coverage range and the like, and the WIFI connection bandwidth and the network speed are improved.

Optionally, besides the metal middle frame, radio frequency antennas can be further arranged inside the intelligent terminal, so that the number of the radio frequency antennas in the intelligent terminal is further increased. The second Wifi antenna FW2 and the third Wifi antenna FW3 are built-in radio frequency antennas formed by LDS materials or FPC materials, and are arranged on an antenna bracket of the intelligent terminal.

Alternatively, the second Wifi antenna FW2 and the third Wifi antenna FW3 may be disposed on the motherboard side, using an antenna mount on the intelligent terminal as a carrier. Considering the specific folding state and unfolding state of the intelligent terminal, therefore, the second Wifi antenna FW2 and the third Wifi antenna FW3 preferably select an antenna or an FPC antenna manufactured by a laser direct structuring technology (LDS), and then the LDS antenna or the FPC antenna is arranged on an antenna bracket of the intelligent terminal. The antenna or the FPC material antenna of LDS preparation is at the mainboard side, and the antenna or the FPC material's of LDS preparation under the folded condition antenna receives the environmental impact less, and the folded state performance of antenna is better. Wherein, the antenna bracket can be a plastic bracket, an insulating bracket and the like.

Fourth embodiment

An embodiment of the antenna assembly according to the present application is provided based on any one of the embodiments of the antenna assembly, and in this embodiment, the antenna assembly further includes: at least one of a medium-high frequency radio frequency antenna, a high frequency radio frequency antenna and an ultra-high frequency radio frequency antenna.

Optionally, under the condition that the functions of the intelligent terminal are continuously perfected, the frequencies of different radio frequency signals of the intelligent terminal are not the same. Optionally, the Wifi communication mode of 2.4GHZ is mainly in a middle-high frequency or high-frequency stage, and the Wifi communication mode of 5GHZ is in a higher frequency band. Thus, in this embodiment, the antenna assembly may include at least one of a mid-high frequency radio frequency antenna, a high frequency radio frequency antenna, and an ultra-high frequency radio frequency antenna. The more the frequency bands of the radio frequency antennas included by the intelligent terminal, the more radio frequency signals the intelligent terminal can receive or send, and the better the performance of the corresponding intelligent terminal. In this embodiment, the intelligent terminal may include radio frequency antennas of all the above bands as much as possible.

Optionally, the frequency band range of the low-frequency antenna is between 700-960 MHz; the frequency band range of the medium-high frequency radio frequency antenna is between 1710-2700 MHz; the frequency band range of the high-frequency radio-frequency antenna is 2300-2700MHz, and the frequency band range of the ultra-high-frequency radio-frequency antenna is 3300-5000 MHz.

Optionally, considering that the radio frequency antenna may also be used for transmitting positioning signals, a GPS antenna is usually further provided on the intelligent terminal for receiving positioning signals. In some remote areas, the effect of receiving the positioning signals by the separate GPS antenna is poor, and the requirement of accurate positioning of the user may not be met.

Optionally, the antenna assembly may further include: the GPS antennas are arranged on the intelligent terminal in a separated layout mode and used for carrying out multi-frequency positioning on the intelligent terminal. The GPS antennas can work in different frequency bands, and GPS signals in the frequency bands are transmitted, so that accurate positioning of the frequency bands is realized. Optionally, two GPS antennas are provided, wherein one GPS antenna has a working frequency of 1575.42MHz, and the other GPS antenna has a working frequency of 1176.45MHz, and at this time, the two GPS antennas can receive GPS signals with different frequencies, so that GPS positioning can be performed more accurately.

Optionally, considering that the size of the metal middle frame is limited, two different radio frequency antennas can be arranged on one section of the metal middle frame, alternatively, two radio frequency antennas can work in different frequency bands, and when the two radio frequency antennas work simultaneously, interference can exist between the two radio frequency antennas due to sharing one radiator, namely the metal middle frame. In order to solve the above problem in this embodiment, the rf antenna is further provided with a matching network M; and the matching network M is respectively connected with the feed source and the radiator.

Alternatively, referring to fig. 12, a matching network M1 and a matching network M2 are provided in fig. 12, and different impedance matching may be performed on the first rf antenna F1 and the second rf antenna F2, so that the first rf antenna F1 and the second rf antenna F2 are isolated.

Optionally, in fig. 12, the metal middle frame 101, the metal middle frame 102, and the sixth fracture C6 constitute a first rf antenna F1 and a second rf antenna F2. The right side of the metal middle frame 101 is connected with a rotating shaft. The radio frequency antenna F1 is connected to the metal middle frame 101 through a spring pin on the PCB, and the radio frequency antenna F2 is connected to the metal middle frame 101 through a spring pin on the PCB. Optionally, the radio frequency antenna is further provided with a suspension branch, and the suspension branch and the radiator of the radio frequency antenna are arranged at intervals through a fracture. In fig. 12, the metal center 102 may be used as a floating stub to improve the bandwidth and performance of the first rf antenna F1 and the second rf antenna F2.

Optionally, the first rf antenna F1 and the second rf antenna F2 share a radiator, that is, share the metal middle frame 101, and the first rf antenna F1 may be an ultra-high frequency antenna supporting a multiple input multiple output protocol; the second radio frequency antenna F2 can be a medium-high frequency antenna, the two antennas work in different frequency bands, and the matching network M1 and the matching network M2 can match different impedances, so that the first radio frequency antenna F1 and the second radio frequency antenna F2 are isolated, a plurality of radio frequency antennas share a radiator, and a section of metal middle frame can be utilized to set a plurality of radio frequency antennas.

Optionally, referring to fig. 13, a third rf antenna F3 and a fourth rf antenna F4 are further disposed on the intelligent terminal in fig. 13. Optionally, the metal middle frame 103, the metal middle frame 104 and the seventh break C7 constitute a third rf antenna F3 and a fourth rf antenna F4. The third rf antenna F3 may be a GPS antenna with the operating frequency of 1575.42 MHz; the fourth rf antenna F4 may be a GPS antenna with a working frequency of 1176.45MHz, or may be a Wifi antenna supporting multiple input multiple output (mimo) 2.4G, that is, the fourth rf antenna F4 may be connected to a circuit related to a GPS rf device at the same time, or may be connected to a circuit related to a Wifi antenna of 2.4G, so as to implement two different signal transmissions. The third rf antenna F3 is connected to the metal middle frame 103 through a pin on the PCB, and the fourth rf antenna F4 is connected to the metal middle frame 104 through a pin on the PCB. When the two antennas are designed, a matching network M3 and a matching network M4 are required to be designed between the third radio frequency antenna F3 and the fourth radio frequency antenna F4 and the PCB pin, or an LC circuit is arranged for adjusting the bandwidth of the antennas and the isolation of the two antennas. The metal middle frame 104 is connected to the first metal middle frame A1 by a rib.

Optionally, referring to fig. 12 and 13, a rib for connecting the metal middle frame to the first metal middle frame is disposed between the metal middle frame 103 and the metal middle frame 102, where the rib is used to separate the third rf antenna F3 from the second rf antenna F2, so as to increase the isolation between the two antennas. Referring to fig. 13 and 14, a rib is also disposed between the metal middle frame 104 and the metal middle frame 105, so as to divide the fourth rf antenna F4 from the fifth rf antenna F5, and increase the isolation between the two antennas.

Alternatively, in fig. 14, the metal middle frame 105, the metal middle frame 106, and the first break C1 constitute a fifth rf antenna F5, a first low-frequency antenna FL1, and a seventh rf antenna F7. Alternatively, the fifth rf antenna F5 may be a mid-high frequency antenna supporting multiple input multiple output, and the seventh rf antenna F7 may be an ultra-high frequency antenna supporting multiple input multiple output. The fifth rf antenna F5 and the seventh rf antenna F7 may be connected to the metal middle frame 105 through spring pins on the PCB. Optionally, the working frequency bands of the first low-frequency antenna FL1 and the seventh radio-frequency antenna F7 are very different, and the same radiator can be used in design, and of course, the fifth radio-frequency antenna F5, the first low-frequency antenna FL1 and the seventh radio-frequency antenna F7 are respectively designed with the corresponding matching network M5, the matching network M6 and the matching network M7 between the pins of the PCB, or LC circuits are designed to adjust the antenna bandwidths and the isolation between the radio-frequency antennas. The metal middle frame 106 is connected to the first metal middle frame A1 through a metal connecting rib at the key.

Alternatively, referring to fig. 15, in the unfolded state of fig. 15, the metal center 107, the metal center 108, and the second break C2 constitute an eighth radio frequency antenna F8 and a second low frequency antenna FL2 antenna. Optionally, the eighth rf antenna F8 may be a Wifi antenna supporting 2.4G with multiple input multiple output functions, or may be an rf antenna with ultra-high frequency, that is, the eighth rf antenna F8 may be connected to a circuit related to a Wifi rf device at the same time, or may be connected to a circuit related to an rf antenna with ultra-high frequency, so as to implement two different signal transmissions. The second low-frequency antenna FL2 can be a radio-frequency antenna supporting the low frequency of the multiple-input multiple-output function, or can be a radio-frequency antenna supporting the medium and high frequency of the multiple-input multiple-output function, namely, the second low-frequency antenna FL2 can be connected with a circuit related to a low-frequency radio-frequency device at the same time, or can be connected with a circuit related to a medium and high-frequency radio-frequency antenna, so that two different signal transmission can be realized.

Optionally, in fig. 15, one of the metal middle frame 106 and the metal middle frame 107 is connected to a rib of the first metal middle frame A1, where the rib is used to divide the seventh rf antenna F7 from the eighth rf antenna F8, to increase the isolation between the two antennas, and the metal middle frame 108 may be used as a suspension branch. The eighth rf antenna F8 is connected to the metal center 107 through a pin on the PCB, and the second low frequency antenna FL2 is connected to the metal center 108 through a pin on the PCB.

Optionally, the antenna design needs to design a matching network M8 and a matching network M9 between the eighth rf antenna F8 and the second low frequency antenna FL2 and the PCB pins, respectively, or set an LC circuit to adjust the bandwidths and isolation of the eighth rf antenna F8 and the second low frequency antenna FL 2. In order to widen the frequency band range of the second low-frequency antenna FL2, a grounding switch SW4 and a switch SW5 of 4×spst are added to tune the second low-frequency antenna FL2, so as to improve the bandwidth and performance of the second low-frequency antenna FL 2.

Optionally, as shown in fig. 16, the metal middle frame 109, the metal middle frame 110, and the tenth fracture C10 constitute a tenth radio frequency antenna F10. The tenth rf antenna F10 may be a mid-high frequency rf antenna supporting a multiple-input multiple-output function, or may be an ultra-high frequency rf antenna supporting a multiple-input multiple-output function, that is, the tenth rf antenna F10 may be connected to a circuit related to a mid-high frequency rf device at the same time, or may be connected to a circuit related to an ultra-high frequency rf antenna, so as to implement two different signal transmissions. The left side of the metal center 109 is connected to the first metal center and the right side of the metal center 110 is connected to the first metal center by a hinge. The tenth rf antenna F10 is connected to the frame 109 through a pin on the PCB, and the ground switch SW6 is connected to the metal middle frame 110 through a pin on the PCB.

Optionally, when the tenth rf antenna F10 is configured, a matching network M10 or an LC circuit is required to be designed between the tenth rf antenna F10 and the PCB pin for adjusting the bandwidth of the tenth rf antenna F10 and improving the isolation between the tenth rf antenna F10 and other rf antennas. In order to widen the frequency band range of the tenth rf antenna F10, a grounding switch SW6 and a switch SW7 of 4×spst are added, so as to tune the tenth rf antenna F10, thereby improving the bandwidth and performance of the tenth rf antenna F10.

Fifth embodiment

The embodiment of the application also provides an intelligent terminal which is a folding terminal and comprises the antenna assembly in any embodiment. Optionally, the intelligent terminal includes a main board, an auxiliary board, and a rotating shaft 20, where the rotating shaft connects the main board 30 and the auxiliary board 40.

Alternatively, the smart terminal may be implemented in various forms. For example, the smart terminals described in the present application may include smart terminals such as cell phones, tablet computers, notebook computers, palm computers, personal digital assistants (Persona L DIGITA L ASS I STANT, PDA), portable media players (Portab L E MED IAP L AYER, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs, desktop computers, and the like.

The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.

Referring to fig. 17, which is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present application, the mobile terminal 200 may include: an RF (radio Frequency) unit 201, a WiFi module 202, an audio output unit 203, an a/V (audio/video) input unit 204, a sensor 205, a display unit 206, a user input unit 207, an interface unit 208, a memory 209, a processor 210, and a power supply 211. It will be appreciated by those skilled in the art that the mobile terminal structure shown in fig. 17 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

The following describes the components of the mobile terminal in detail with reference to fig. 17:

The radio frequency unit 201 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 210; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 201 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to GSM (G l oba l System of Mobi l e communicat ion, global System for Mobile communications), GPRS (GENERA L PACKET RAD io Service ), CDMA2000 (CodeDivi s ion Mu LT IP L E ACCESS, code division multiple Access 2000), WCDMA (Wideband CodeDivi s ion Mu LT I P L E ACCESS ), TD-SCDMA (TIMEDIVI S ion-Synchronous Code Divi s ion Mu LT IP L E ACCESS, time division synchronous code division multiple Access), FDD-LTE (Frequency Divi s i on Dup l exi ng-Long Term Evo l ut ion, frequency division Duplex Long term evolution), TDD-LTE (TIME DI VI S ion Dup l exi ng-Long Term Evo l ut ion, time division Duplex Long term evolution), 5G, and the like.

WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 202, so that wireless broadband Internet access is provided for the user. Although fig. 17 shows a WiFi module 202, it is understood that it does not belong to the necessary constitution of the mobile terminal, and can be omitted entirely as required within the scope of not changing the essence of the invention.

The audio output unit 203 may convert audio data received by the radio frequency unit 201 or the WiFi module 202 or stored in the memory 209 into an audio signal and output as sound when the mobile terminal 200 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 203 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 200. The audio output unit 203 may include a speaker, a buzzer, and the like.

The a/V input unit 204 is used to receive audio or video signals. The a/V input unit 204 may include a graphics processor (Graph ics Process i ng Un it, GPU) 2041 and a microphone 2042, the graphics processor 2041 processing image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 206. The image frames processed by the graphics processor 2041 may be stored in memory 209 (or other storage medium) or transmitted via the radio frequency unit 201 or the WiFi module 202. The microphone 2042 can receive sound (audio data) via the microphone 2042 in a telephone call mode, a recording mode, a voice recognition mode, and the like operation mode, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 201 in the case of a telephone call mode. The microphone 2042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated during the reception and transmission of audio signals.

The mobile terminal 200 also includes at least one sensor 205, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor that may adjust the brightness of the display panel 2061 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 2061 and/or the backlight when the mobile terminal 200 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.

The display unit 206 is used to display information input by a user or information provided to the user. The display unit 206 may include a display panel 2061, and the display panel 2061 may be configured in the form of a liquid crystal display (Li quid CRYSTA L DI SP L AY, LCD), an Organic Light-emitting diode (OLED), or the like.

The user input unit 207 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. Alternatively, the user input unit 207 may include a touch panel 2071 and other input devices 2072. The touch panel 2071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 2071 or thereabout using any suitable object or accessory such as a finger, a stylus, or the like) and actuate the corresponding connection device according to a predetermined program. The touch panel 2071 may include two parts of a touch detection device and a touch controller. Optionally, the touch detection device detects the touch azimuth of the user, detects a signal brought by touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 210, and can receive and execute commands sent from the processor 210. Further, the touch panel 2071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. The user input unit 207 may include other input devices 2072 in addition to the touch panel 2071. Alternatively, other input devices 2072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., and are not limited in particular herein.

Alternatively, the touch panel 2071 may overlay the display panel 2061, and when the touch panel 2071 detects a touch operation thereon or thereabout, the touch panel is transferred to the processor 210 to determine the type of touch event, and then the processor 210 provides a corresponding visual output on the display panel 2061 according to the type of touch event. Although in fig. 17, the touch panel 2071 and the display panel 2061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 2071 and the display panel 2061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.

The interface unit 208 serves as an interface through which at least one external device is connected to the mobile terminal 200. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 208 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 200 or may be used to transmit data between the mobile terminal 200 and an external device.

Memory 209 may be used to store software programs as well as various data. The memory 209 may mainly include a storage program area and a storage data area, and alternatively, the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 209 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 210 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 209 and calling data stored in the memory 209, thereby performing overall monitoring of the mobile terminal. Processor 210 may include one or more processing units; preferably, the processor 210 may integrate an application processor and a modem processor, the application processor optionally handling primarily an operating system, user interface, application programs, etc., the modem processor handling primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 210.

The mobile terminal 200 may further include a power supply 211 (e.g., a battery) for supplying power to the respective components, and preferably, the power supply 211 may be logically connected to the processor 210 through a power management system, so as to perform functions of managing charging, discharging, power consumption management, etc. through the power management system.

Although not shown in fig. 17, the mobile terminal 200 may further include a bluetooth module or the like, which is not described herein.

It can be understood that the above scenario is merely an example, and does not constitute a limitation on the application scenario of the technical solution provided by the embodiment of the present application, and the technical solution of the present application may also be applied to other scenarios. For example, as one of ordinary skill in the art can know, with the evolution of the system architecture and the appearance of new service scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.

The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The units in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.

In the present application, the same or similar term concept, technical solution and/or application scenario description will be generally described in detail only when first appearing and then repeatedly appearing, and for brevity, the description will not be repeated generally, and in understanding the present application technical solution and the like, reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution and/or application scenario description and the like which are not described in detail later.

In the present application, the descriptions of the embodiments are emphasized, and the details or descriptions of the other embodiments may be referred to.

The technical features of the technical scheme of the application can be arbitrarily combined, and all possible combinations of the technical features in the above embodiment are not described for the sake of brevity, however, as long as there is no contradiction between the combinations of the technical features, the application shall be considered as the scope of the description of the application.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. The antenna assembly is characterized by being applied to an intelligent terminal, wherein the intelligent terminal comprises a main board, an auxiliary board and a rotating shaft; the antenna assembly includes:

A low-frequency antenna arranged on the main board side;

a low-frequency antenna provided on the sub-board side;

2. The antenna assembly of claim 1, wherein a first rib is provided on a first metal center of the main board, a first break is provided between the first rib and a second metal center of the main board, and a second break is provided between the first rib and a third metal center of the main board;

The low-frequency antenna provided on the main board side includes at least:

3. The antenna assembly of claim 2, wherein the first low frequency antenna comprises a first feed, a first switch, and a first matching network;

4. The antenna assembly of claim 1, wherein the first metal center of the sub-panel is provided with a second bead, a third break is provided between the second bead and the third metal center of the sub-panel, and a fourth break is provided between the second bead and the second metal center of the sub-panel;

the low-frequency antenna provided on the sub-board side includes at least:

5. The antenna assembly of claim 4, wherein the third low frequency antenna comprises a third feed, a second switch, and a third matching network;

6. The antenna assembly according to any one of claims 2 to 5, wherein a third rib is provided at the position of the intersection of the second metal middle frame of the sub-plate and the rotating shaft, and at least one fifth fracture is provided on the second metal middle frame of the sub-plate;

7. The antenna assembly of claim 6, wherein the first Wifi antenna includes a fifth feed, a fourth switch, and a fifth matching network;

8. The antenna assembly of claim 6, wherein a fourth rib is provided at the intersection of the second metal middle frame of the main board and the rotating shaft, and at least one sixth break is provided on the second metal middle frame of the auxiliary board;

9. The antenna assembly of claim 8, wherein the second Wifi antenna and the third Wifi antenna are built-in radio frequency antennas disposed on an antenna mount of the smart terminal.

10. An intelligent terminal comprising an antenna assembly as claimed in any one of claims 1 to 9.