阅读说明：本技术 天线模组及终端 (Antenna module and terminal ) 是由 雍征东 于 2019-11-30 设计创作，主要内容包括：本申请实施例公开了一种天线模组和终端,属于天线技术领域,申请实施例提供的天线模组包括第一自由分支和辐射分支,辐射分支中包括导电辐射段和相变辐射段,导电辐射段和相变辐射段电性相连,天线模组通过第一自由分支馈电,相变辐射段包括晶态和非晶态,相变辐射段在晶态下导电,相变辐射段在非晶态下绝缘,当相变辐射段处于非晶态时,辐射分支长为L1,当相变辐射段处于晶态时,辐射分支长为L2,L1小于L2。由于天线模组能通过相变辐射段在晶态和非晶态之间的变化,使得辐射分支的长度进行变化,进而天线模组在不增加额外的寄生天线的情况下,增加了天线的工作频率的范围,提高了天线模组利用空间的效率。(The embodiment of the application discloses antenna module and terminal, belong to the antenna technology field, the antenna module that application embodiment provided includes first free branch and radiation branch, include electrically conductive radiation section and phase transition radiation section in the radiation branch, electrically conductive radiation section and phase transition radiation section electric connection, the antenna module feeds through first free branch, the phase transition radiation section includes crystalline state and amorphous state, the phase transition radiation section is electrically conductive under the crystalline state, the phase transition radiation section is insulating under the amorphous state, when the phase transition radiation section is in amorphous state, the radiation branch is long to be L1, when the phase transition radiation section is in crystalline state, the radiation branch is long to be L2, L1 is less than L2. Because the antenna module can change between crystalline state and amorphous state through the phase transition radiation section for the length of radiation branch changes, and then the antenna module has increased the operating frequency's of antenna scope under the condition of not increasing extra parasitic antenna, has improved the efficiency that the antenna module utilized the space.)

1. An antenna module, characterized in that, the antenna module includes: the radiation branch comprises a conductive radiation section and a phase change radiation section, and the conductive radiation section is electrically connected with the phase change radiation section;

the antenna module is fed through the first free branch;

the phase change radiation segment includes a crystalline state in which the phase change radiation segment is electrically conductive and an amorphous state in which the phase change radiation segment is electrically insulating;

when the phase-change radiation segment is in the amorphous state, the radiation branch length is L1;

when the phase change radiation segment is in the crystalline state, the radiation branch length is L2, and L2 is greater than L1.

2. The antenna module of claim 1, wherein the antenna module comprises a ground branch, and the conductive radiating section comprises a first conductive radiating section, a first end of the first conductive radiating section is electrically connected to the ground branch, a second end of the first conductive radiating section is electrically connected to the first free branch, and a third end of the first conductive radiating section is electrically connected to the first end of the phase-change radiating section.

3. The antenna module of claim 2, wherein the conductive radiating segment further comprises a second conductive radiating segment, and the second end of the phase change radiating segment is electrically connected to the second conductive radiating segment.

4. The antenna module of claim 2, wherein the antenna module further comprises a second free branch;

the second end of the first conductive radiating section is located in a first half section of the radiating branch, and the first half section is a radiating part connected with the grounding branch;

the second free branch is connected to a second half of the radiating branch, the second half being the portion of the radiating branch other than the first half;

the first free branch includes the crystalline state and the amorphous state, the second free branch includes the crystalline state and the amorphous state, and a state of the first free branch is different from that of the second free branch.

5. The antenna module of claim 3, wherein the phase change radiating section comprises a connector and a plated portion;

the connector is used for fixedly connecting the first conductive radiation section and the second conductive radiation section;

the connecting body is made of an insulating material, the coating part is made of a phase-change material, and the phase-change material comprises the crystalline state and the amorphous state;

the plating part is attached to the outer surface of the connector, a first end of the plating part is electrically connected with a first end of the first conductive radiation section, and a second end of the plating part is electrically connected with the second conductive radiation section.

6. The antenna module of claim 5, wherein the phase change material is a germanium antimony tellurium (GST) material or a germanium tellurium material.

7. The antenna module of any one of claims 1 to 6, wherein the antenna module further comprises a triggering device;

the trigger device is used for inducing the phase change radiation section to be converted from the amorphous state to the crystalline state;

alternatively, the first and second electrodes may be,

the trigger device is configured to induce the phase-change radiation segment to transform from the crystalline state to the amorphous state.

8. The antenna module of claim 7, wherein the triggering device is any one of a laser excitation device, a temperature control device or a power supply device;

the laser excitation device is used for emitting laser to the phase change radiation section to induce the phase change radiation section to convert between the amorphous state and the crystalline state;

the temperature control device is to change a temperature of the phase change radiation segment to induce the phase change radiation segment to transition between the amorphous state and the crystalline state;

the power supply device is used for applying a voltage across the phase change radiation segment to induce the phase change radiation segment to switch between the amorphous state and the crystalline state.

9. The antenna module of claim 1, wherein the antenna module is an IFA antenna or a PIFA antenna.

10. A terminal, characterized in that it comprises an antenna module according to any one of claims 1 to 9.

Technical Field

The embodiment of the application relates to the technical field of antennas, in particular to an antenna module and a terminal.

Background

With the wide application of mobile communication devices in daily life, the antenna module used for receiving and transmitting radio frequency signals has increasingly improved functions along with the requirements of the mobile communication devices.

Disclosure of Invention

The embodiment of the application provides an antenna module and a terminal. The technical scheme is as follows:

according to an aspect of the present application, there is provided an antenna module, including: the radiation branch comprises a conductive radiation section and a phase change radiation section, and the conductive radiation section is electrically connected with the phase change radiation section;

the antenna module is fed through the first free branch;

the phase change radiation segment includes a crystalline state in which the phase change radiation segment is electrically conductive and an amorphous state in which the phase change radiation segment is electrically insulating;

when the phase-change radiating section is in the amorphous state, the radiating branch has a length of L1;

when the phase-change radiation section is in the crystalline state, the radiation branch length is L2, and L2 is greater than L1.

According to another aspect of the present application, a terminal is provided, where the terminal includes any one of the antenna modules provided in this application.

The beneficial effects brought by the technical scheme provided by the embodiment of the application can include:

the antenna module that this application embodiment provided includes first free branch and radiation branch, include electrically conductive radiation section and phase transition radiation section in the radiation branch, electrically conductive radiation section and phase transition radiation section electric property link to each other, the antenna module is through first free branch feed, the phase transition radiation section includes crystalline state and amorphous state, the phase transition radiation section is electrically conductive under the crystalline state, the phase transition radiation section is insulating under the amorphous state, when the phase transition radiation section is in the amorphous state, the radiation branch is long for L1, when the phase transition radiation section is in the crystalline state, the radiation branch is long for L2, L1 is less than L2. Because the antenna module that this application provided can be through the change of phase transition radiation section between crystalline state and amorphous state for the length of the radiation branch of antenna module changes, makes the antenna module under the condition that does not increase extra parasitic antenna, has increased the operating frequency that the antenna can be used, has improved the efficiency that the antenna module utilized the space.

Drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment of the present application;

fig. 2 is a schematic structural diagram of another antenna module according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another antenna module according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an antenna module according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of an antenna module according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of an antenna module according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an antenna module according to another embodiment of the present application;

fig. 8 is a schematic structural diagram of an antenna module according to another exemplary embodiment of the present application;

fig. 9 is a schematic structural diagram of an antenna module according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a trigger device in an antenna module according to an embodiment of the present disclosure;

fig. 11 is a block diagram of a terminal according to an exemplary embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

For example, the antenna module shown in the embodiment of the present application may be applied to a terminal. The terminal can comprise electronic equipment such as a mobile phone, smart glasses, a smart watch, a digital camera, an MP4 player terminal, an MP5 player terminal, a learning machine, a point-to-read machine, an electronic paper book or an electronic dictionary and the like.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment of the present application. The antenna module can be applied to the terminal. In fig. 1, the antenna module includes: a first free branch 111 and a radiating branch 120. In the present embodiment, the radiating branch 120 includes a conductive radiating segment 121 and a phase-change radiating segment 122. The conductive radiation section 121 and the phase-change radiation section 122 are electrically connected.

In the antenna module shown in fig. 1, the antenna module will be fed through the first free branch 111. The antenna module transmits or receives radio frequency signals through the radiation branches. In this application embodiment, the number of the phase change radiation segments may be n segments, where n is a positive integer, and the number of the phase change radiation segments is not limited in this application embodiment. In fig. 1, the number of stages of the phase change radiation section is illustrated as 1.

For better performance, the antenna module may further include a ground branch 130. In the antenna module including the ground branch 130, the embodiment of the present application can implement the antenna module as an inverted-F antenna or a planar inverted-F antenna. In another antenna naming system in the art, an inverted-F antenna is also called an IFA antenna, and a planar inverted-F antenna is also called a PIFA antenna. Wherein the ground branch 130 communicates with a ground system 140.

In the antenna module shown in fig. 1, the conductive radiating segment 120 includes a first conductive radiating segment ab segment and a second conductive radiating segment cd segment. The first end of the ab segment of the first conductive radiation segment is an a end, and the a end is electrically connected to the ground branch 130. The second end of the ab segment of the first conductive radiating segment is an f-end, and the f-end is electrically connected to the first free branch 111. The third end of the ab segment of the first conductive radiation segment is the b end, the b end is connected to the b end of the phase change radiation segment 122, and the b end of the phase change radiation segment 122 is the first end of the phase change radiation segment 122. The end c of the phase change radiation section 122 is the second end of the phase change radiation section 122, and the end c of the phase change radiation section 122 is electrically connected with the second conductive radiation section cd.

The length of the conductive portion of the radiating branch can affect the operating frequency of the antenna module. Thus, the present embodiment changes the length of the conductive portion of the radiating branch by designing the phase change radiating section 122 in the radiating branch 120. In one possible approach, the phase change radiation segment 122 includes crystalline and amorphous states. Wherein the phase change radiation segment 122 is electrically conductive in the crystalline state and the phase change radiation segment 122 is insulated in the amorphous state.

When the phase change radiation segment 122 is in the crystalline state, the phase change radiation segment 122 is able to conduct electricity. The conductive radiation section 121 and the phase-change radiation section 122 are electrically connected, and the radiation branch has a length of L2, and L2 is an abcd section.

When the phase-change radiation segment 122 is in the amorphous state, the phase-change radiation segment 122 is insulated. The conductive portion of the radiating branch 120 is the ab-segment, in which case the radiating branch is L1 long and L1 is the ab-segment. In connection with the example shown in fig. 1, it is apparent that L2 is greater than L1.

In summary, the antenna module provided in the embodiment of the present application includes a first free branch and a radiation branch, the radiation branch includes a conductive radiation section and a phase change radiation section, the conductive radiation section is electrically connected to the phase change radiation section, the antenna module feeds through the first free branch, the phase change radiation section includes a crystalline state and an amorphous state, the phase change radiation section is conductive in the crystalline state, the phase change radiation section is insulated in the amorphous state, when the phase change radiation section is in the amorphous state, the radiation branch length is L1, when the phase change radiation section is in the crystalline state, the radiation branch length is L2, and L1 is smaller than L2. Because the antenna module that this application provided can be through the change of phase transition radiation section between crystalline state and amorphous state for the length of the radiation branch of antenna module changes, makes the antenna module under the condition that does not increase extra parasitic antenna, has increased the operating frequency that the antenna can be used, has improved the efficiency that the antenna module utilized the space.

In another possible implementation manner of the present application, the antenna module may further design the phase-change radiating section 122 at the end of the radiating branch 120, please refer to fig. 2 for details, and fig. 2 is a schematic structural diagram of another antenna module provided in this embodiment of the present application. In fig. 2, the antenna module includes a first free branch 111, a radiating branch 120, and a ground branch 130. Wherein the radiating branch 120 comprises a conductive radiating section 121 and a phase change radiating section 122. The conductive radiation segment 121 is the ae segment in the radiation branch 120 and the phase change radiation segment 122 is the ed segment in the radiation branch 120.

When the phase change radiation segment 122 is in the crystalline state, the phase change radiation segment 122 is able to conduct electricity. The conductive radiation section 121 and the phase-change radiation section 122 are electrically connected, the radiation branch length is L2, and L2 is an aed section.

When the phase-change radiation segment 122 is in the amorphous state, the phase-change radiation segment 122 is insulated. The part of the radiating branch 120 that can conduct is the ae section, in which case the radiating branch is L1 long and L1 is the ae section. In connection with the example shown in fig. 2, it is apparent that L2 is greater than L1.

In fig. 2, the first end of the conductive radiating segment 121 is an a-end, and the a-end is electrically connected to the ground branch 130. The second end of the conductive radiating section 121 is an f-end, and the f-end is electrically connected to the first free branch 111. The third end of the conductive radiation section 121 is an e-end, and the e-end is electrically connected to the first end e of the phase change radiation section 122.

In another possible embodiment of the present application, the antenna module may further include more than 2 phase-change radiation segments 122. Referring to fig. 3, fig. 3 is a schematic structural diagram of another antenna module according to an embodiment of the present disclosure. In fig. 3, the phase-change radiation section 122 is illustrated as 2 sections.

In fig. 3, the conductive radiating segment 121 includes a first sub-conductive segment ab segment and a second sub-conductive segment ce segment, and the phase-change radiating segment 122 includes a first sub-phase-change radiating segment bc segment and a second sub-phase-change radiating segment ed segment.

It should be noted that the first sub phase change radiation section bc and the second sub phase change radiation section ed can be controlled individually in their state. Alternatively, the ed segment can be in the crystalline state while the bc segment is in the crystalline state. While the bc segment is in the crystalline state, the ed segment may also be in the amorphous state. Alternatively, the bc segments and the ed segments may be in the amorphous state at the same time.

In another possible embodiment of the present application, the antenna module may further include a second free branch. Referring to fig. 4, fig. 4 is a schematic structural diagram of an antenna module according to an embodiment of the present disclosure. In fig. 4, the antenna module includes a first free branch 111 and a second free branch 112. The structures with the same reference numbers in fig. 4 can be referred to the description of fig. 1, and are not described again here. The second end of the first conductive radiating segment is an a-end, the first half segment of the radiating branch 120 is an ab-segment, and the ab-segment is electrically connected to the ground branch 130.

In fig. 4, the second free branch 112 is connected to the second half of the radiating branch 120, which is the cd section in the radiating branch 120. The second free branch 112 is electrically connected to the cd segment via the g terminal. And, the state of the second free branch 112 includes crystalline and amorphous states.

For the operation state of the antenna module shown in fig. 4, the operation state of the antenna module may select the first free branch 111 to be fed or select the second free branch 112 to be fed. In one case, when the antenna module chooses to feed through the first free branch 111, the state of the second free branch 112 is amorphous and the state of the first free branch 111 is crystalline. In another case, when the antenna module chooses to feed through the second free branch 112, the state of the first free branch 111 is amorphous and the state of the second free branch 112 is crystalline.

On the one hand, when the phase-change radiation section 122 is in a crystalline state, the antenna module can construct an antenna with different feeding branches by selecting the first free branch 111 or the second free branch 112 as the feeding branch.

On the other hand, when the phase-change radiation section 122 is in the amorphous state, if the first free branch 111 and the second free branch 112 are both in the crystalline state, the antenna module includes an inverted-F antenna and an inverted-L antenna. If the first free branch 111 is amorphous and the second free branch 112 is crystalline, the antenna module includes an inverted-L antenna and a parasitic antenna.

In another possible embodiment of the present application, the antenna module may further include a first free branch 111 and a second free branch 112 at the same time, in the case that the phase-change radiation section 122 is disposed at the end of the radiation branch 120. Referring to fig. 5, fig. 5 is a schematic structural diagram of an antenna module according to an embodiment of the present disclosure. In fig. 5, the first free branch 111 or the second free branch 112 also includes both a crystalline state and an amorphous state. When the first free branch 111 is in the crystalline state, the second free branch 112 is in the amorphous state. When the first free branch 111 is in the amorphous state, the second free branch 112 is in the crystalline state.

In the antenna module shown in fig. 5, the length of the radiation branch 120 may be selected as ae, or the length of the radiation branch 120 may be selected as ad. Meanwhile, the antenna module can select the first free branch 111 as a feeding branch and also can select the second free branch 112 as a feeding branch, so that the antenna assembly increases the structural diversity of the antenna module and increases the working frequency of the antenna without occupying additional space and adding additional electrical components.

In another possible embodiment of the present application, the antenna module may also be implemented as a structure as shown in fig. 6. Fig. 6 is a schematic structural diagram of an antenna module according to an embodiment of the present application. Reference numbers of the structures shown in fig. 6 can be referred to in the description of any one of fig. 1 to 5, and are not repeated here. The antenna module in fig. 6 can determine the states of the first free branch 111, the second free branch 112, the phase-change radiation section bc, and the phase-change radiation section ed according to the requirement, which is not limited in this embodiment of the present application.

Based on the antenna module disclosed in the previous embodiment, the phase-change radiation section may also be an assembly, where the inner core of the assembly is the connecting body and the outer surface is the plating part. Please refer to the following examples.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an antenna module according to another exemplary embodiment of the present application. In fig. 7, the phase-change radiation section 122, i.e., the bc section, in the antenna module includes: a connector 72 and a plated portion 71. It should be noted that the dashed box in fig. 7 is used to indicate the three views of the bc section, wherein the left view shows the structure of the coating portion 71 wrapped on the surface of the connecting body 72.

In the phase-change radiation section 122, the connector 72 is used to fixedly connect the ab section of the first conductive radiation section and the cd section of the second conductive radiation section, the connector is made of an insulating material, and the plating portion 71 is made of a phase-change material. The phase change material includes a crystalline state and an amorphous state. A plated portion 71 is attached to an outer surface of the connector 72, and a first end (i.e., end b) of the plated portion 71 is connected to a first end (i.e., end b) of the ab-segment of the first conductive radiating segment. A second end (i.e., end c) of the plated portion 71 is electrically connected to the second conductive radiating segment cd.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an antenna module according to another exemplary embodiment of the present application. In fig. 8, the phase-change radiation section 122, i.e. the bc section, is in the shape of a solid cylinder, which may be formed by filling with a phase-change material. It should be noted that the structures with reference numbers in fig. 8 may refer to other descriptions with the same reference numbers in this application, and are not described herein again.

In the embodiment of the present application, the phase change material may be a germanium antimony tellurium GST material or a germanium tellurium material. As a possible expression mode, the germanium antimony tellurium GST material can adopt a structural formula such as Ge_xSb_yTe_zThe material of (1). Wherein, the parameters (x, y, z) can take values including (1, 1, 2), (1, 2, 4) and (2, 2, 5). In another possible expression, the germanium tellurium material may be denoted as GeTe, and the parameters for such material may be found in table one.

Watch 1

Ge_xSb_yTe_zMaterials and GeTe materials have specified ranges of crystalline and amorphous parameters.

In another possible implementation manner of the embodiment of the present application, if the phase-change radiation section is a pillar, the cross-sectional diameter of the pillar is smaller than the cross-sectional diameter of the conductive radiation section. Referring to fig. 9, fig. 9 is a schematic structural diagram of an antenna module according to an embodiment of the present disclosure. In fig. 9, the cross-sectional diameter of the phase-change radiating section 122 is smaller than the cross-sectional diameter of the conductive radiating section 121. In another possible solution, the outer layer of the phase-change radiation section 122 is also filled with a transparent material.

Optionally, for the way in which the phase change material or the phase change radiation segment changes state in this application, the following way is provided in this application. In a possible mode, the antenna module further includes a trigger device. The trigger device has two functions. One function is to induce the phase change radiation segments to change from the amorphous state to the crystalline state and the other function is to induce the phase change radiation segments to change from the crystalline state to the amorphous state.

Optionally, the triggering device is any one of a laser excitation device, a temperature control device or a power supply device. Wherein the laser excitation device is configured to emit laser light to the phase change radiation segment to induce the phase change radiation segment to switch between the amorphous state and the crystalline state. The temperature control device is for changing a temperature of the phase change radiation segment to induce the phase change radiation segment to transition between the amorphous and crystalline states. The power supply device is used for applying a voltage across the phase-change radiation segment to induce the phase-change radiation segment to switch between the amorphous state and the crystalline state.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a trigger device in an antenna module according to an embodiment of the present disclosure. In fig. 10, the triggering device is configured as a powered device, wherein between the h-terminal and the i-terminal of the phase-change radiation segment 122 a voltage is applied by the powered device, which is capable of inducing the phase-change radiation segment to switch between the crystalline and amorphous states.

To sum up, the antenna module that provides in this application embodiment can make the antenna module work under more frequencies in the condition that does not additionally occupy space, has increased the ability that the antenna worked under a plurality of frequencies.

Referring to fig. 11, fig. 11 is a block diagram of a terminal according to an exemplary embodiment of the present application. The terminal 1100 may include a plurality of antenna modules 11A. Illustratively, the antenna module 11A may use a metal middle frame of the terminal 1100 as a component, which is not described in detail in this embodiment of the present application.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only exemplary of the implementation of the present application and is not intended to limit the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.