WO2023040561A1

WO2023040561A1 - Antenna module and communication device

Info

Publication number: WO2023040561A1
Application number: PCT/CN2022/113094
Authority: WO
Inventors: 雍征东
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-09-16
Filing date: 2022-08-17
Publication date: 2023-03-23
Also published as: CN113809524A

Abstract

The present application provides an antenna module and a communication device. The antenna module comprises a reference ground, a first radiator, and a second radiator; the first radiator and the reference ground are arranged at an interval; the first radiator is provided with a first grounding point and a feed point; the first grounding point is electrically connected with the reference ground; the feed point is used for receiving a radio frequency signal; the second radiator and the first radiator are stacked and arranged at an interval so as to be capacitively coupled with the first radiator; the second radiator is provided with a second grounding point; the second grounding point is electrically connected with the reference ground; the antenna module transmits/receives an electromagnetic wave signal of a preset frequency band according to the radio frequency signal. The antenna module provided by the present embodiment is small in size, and when the antenna module is applied to a communication device, integration and layout in the communication device are facilitated.

Description

Antenna module and communication equipment

This application claims the priority of the earlier application with the application number 202111091510.0 filed on September 16, 2021, with the title of "antenna module and communication equipment", and the content of the above-mentioned earlier application is incorporated herein by reference.

technical field

The present application relates to the technical field of communication, and in particular to an antenna module and communication equipment.

Background technique

With the development of communication technologies, a communication device usually communicates with other communication devices, so as to locate the communication device or the other communication devices. Specifically, the communication device usually includes an antenna module, through which the electromagnetic wave signal is sent and received to realize the communication function. However, in the related art, the size of the antenna module is relatively large, which is not conducive to the integration and layout of the antenna module when the antenna module is used in a communication device.

Contents of the invention

In the first aspect, the embodiment of the present application provides an antenna module, and the antenna module includes:

reference ground;

A first radiator, the first radiator is spaced apart from the reference ground, the first radiator has a first ground point and a feed point, the first ground point is electrically connected to the reference ground, and the first radiator is electrically connected to the reference ground. said feed point is used to receive radio frequency signals; and

The second radiator, the second radiator is stacked with the first radiator and arranged at intervals to capacitively couple with the first radiator, the second radiator has a second ground point, the first radiator two ground points are electrically connected to the reference ground;

The antenna module sends and receives electromagnetic wave signals of a preset frequency band according to the radio frequency signal.

In the second aspect, the embodiment of the present application provides an antenna module, and the antenna module includes:

reference ground;

a first radiator, the first radiator has a feeding point and a first grounding point, the feeding point is used to receive a radio frequency signal, and the first grounding point is electrically connected to the reference ground; and

A second radiator, the second radiator is stacked with the first radiator and capacitively coupled, the second radiator has a second ground point, and the second ground point is electrically connected to the reference ground ;

When the feeding point is loaded with the radio frequency signal, a first current is formed on the first radiator, and a second current that flows in the same direction as the first current is generated on the second radiator.

In a third aspect, the embodiment of the present application further provides a communication device, where the communication device includes the antenna module as described in the first aspect or the second aspect.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the drawings that need to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of a three-dimensional structure of an antenna module provided in an embodiment of the present application;

FIG. 2 is an enlarged schematic diagram of the antenna module provided in FIG. 1;

Fig. 3 is a schematic side view of the antenna module shown in Fig. 2;

FIG. 4 is a schematic diagram of a three-dimensional structure of an antenna module provided in another embodiment of the present application;

Fig. 5 is a schematic side view of the antenna module shown in Fig. 4;

FIG. 6 is a schematic diagram of a three-dimensional structure of an antenna module provided in another embodiment of the present application;

Fig. 7 is a side view of the antenna module shown in Fig. 6;

Fig. 8 is a schematic diagram of the orthographic projection of the first radiator and the second radiator in the antenna module in Fig. 2 on the plane where the reference ground is located;

9 is a schematic diagram of an orthographic projection of the first radiator and the second radiator in the antenna module in FIG. 4 on the plane where the reference ground is located;

10 is a schematic diagram of the orthographic projection of the first radiator and the second radiator in the antenna module in FIG. 6 on the plane where the reference ground is located;

FIG. 11 is a schematic perspective view of the three-dimensional structure of the antenna module provided in another embodiment of the present application;

12 is a schematic diagram of the orthographic projection of the first radiator and the second radiator in the antenna module in FIG. 11 on the plane where the reference ground is located;

FIG. 13 is a schematic perspective view of the three-dimensional structure of the antenna module provided in another embodiment of the present application;

Fig. 14 is a schematic diagram of the orthographic projection of the first radiator and the second radiator in the antenna module in Fig. 13 on the plane where the reference ground is located;

FIG. 15 is a schematic perspective view of the three-dimensional structure of the antenna module provided in yet another embodiment of the present application;

Fig. 16 is a side view of the antenna module shown in Fig. 15;

Fig. 17 is a schematic diagram of the projection of the antenna module shown in Fig. 15 on the plane where the reference ground is located;

FIG. 18 is a schematic perspective view of the three-dimensional structure of the antenna module provided in another embodiment of the present application;

FIG. 19 is a schematic diagram of the orthographic projection of the first radiator and the second radiator in the antenna module in FIG. 18 on the plane where the reference ground is located;

FIG. 20 is a schematic perspective view of an antenna provided in another embodiment of the present application;

Figure 21 is a sectional view of the antenna module shown in Figure 20 along the I-I line;

FIG. 22 is a schematic perspective view of the antenna module in FIG. 20 with the dielectric substrate removed;

FIG. 23 is a schematic perspective view of an antenna module provided in another embodiment of the present application;

Fig. 24 is a sectional view of the antenna module shown in Fig. 23 along the direction II-II;

Fig. 25 is a sectional view of the antenna module shown in Fig. 23 along the III-III direction in an embodiment;

FIG. 26 is a schematic perspective view of an antenna module provided in another embodiment of the present application;

Fig. 27 is a cross-sectional view of the antenna module shown in Fig. 26 along the IV-IV direction;

Fig. 28 is a sectional view of the antenna module shown in Fig. 27 along the V-V direction;

FIG. 29 is a schematic diagram of the current distribution of the antenna module shown in FIG. 4;

Fig. 30 is a schematic diagram of S parameters of the antenna module shown in Fig. 4 and Fig. 5;

Fig. 31 is a schematic diagram of S parameters of three antenna modules;

Fig. 32 is a schematic diagram of S parameters of three antenna modules;

FIG. 33 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

Fig. 34 is a schematic diagram of transmitting and receiving electromagnetic wave signals by the communication device in Fig. 33;

FIG. 35 is a schematic diagram of communication between a communication device and a base station provided in an embodiment of the present application;

Fig. 36 is a schematic diagram of multiple base stations positioning a communication device.

Explanation of main component numbers: communication device 1, antenna module 10, first antenna module 10a, second antenna module 10b, first radiator 110, second radiator 120, reference ground 130, feeder 140, second A grounding element 150, a second grounding element 160, a radio frequency chip 170, a dielectric substrate 180, a first grounding element 110a, a feeding element 110b, a first grounding end 111, a first free end 112, a second grounding point 120a, a second Ground end 121, second free end 122, through hole 1221, through hole 131, first surface 180a, second surface 180b, first ground hole 181, second ground hole 182, feed hole 183, first sub-dielectric substrate 1801, second sub-dielectric substrate 1802, third sub-dielectric substrate 1803, first direction D1, second direction D2, third direction D3, fourth direction D4, first current I1, second current I2.

Detailed ways

In the first aspect, the embodiment of the present application provides an antenna module, wherein the antenna module includes:

reference ground;

Wherein, the second ground point is disposed at an end of the second radiator away from the first ground point.

Wherein, the second radiator extends along the first direction, the second radiator has a plurality of second grounding points arranged at intervals, the plurality of second grounding elements are arranged along the second direction, and the second The direction is perpendicular to the first direction.

Wherein, the distance between two adjacent second grounding points is equal.

Wherein, the second radiator is disposed on a side of the first radiator adjacent to the reference ground.

Wherein, the antenna module further includes a feed piece, a first ground piece and a second ground piece, the feed piece is electrically connected to the feed point, so as to transmit the radio frequency signal to the feed point, The first grounding member electrically connects the first grounding point to the reference ground, and the second grounding member electrically connects the second grounding point to the reference ground;

The first radiator includes a first free end away from the first ground point, and the first free end is disposed adjacent to the second ground point;

The second radiator includes a second free end away from the second grounding point, the second free end is disposed on a side of the feeding member away from the first grounding member, and the second free end The end is spaced apart from the feeder.

Wherein, the antenna module further includes a feeding part and a first grounding part, the feeding part is electrically connected to the feeding point, so as to transmit the radio frequency signal to the feeding point, and the first grounding part A component electrically connects the first ground point to the reference ground;

The second radiator includes a second free end away from the second ground point, the second free end has a through hole, the feeder is arranged in the through hole, and is connected to the second radiator body insulation.

Wherein, the second radiator is disposed on a side of the first radiator away from the reference ground.

Wherein, the first radiator includes a first free end away from the first ground point, and the first free end is disposed adjacent to the second ground point;

The second radiator includes a second free end away from the second ground point, and the second free end is disposed adjacent to the first ground point.

Wherein, the extending direction of the first radiator is the same as the extending direction of the second radiator.

Wherein, the orthographic projection of the first radiator on the reference ground is a first projection, the orthographic projection of the second radiator on the reference ground is a second projection, and the second projection falls into the first projection. within the range of a projection.

Wherein, the first radiator extends along the third direction, the first radiator has a plurality of first grounding points arranged at intervals, the plurality of first grounding points are arranged along the fourth direction, and the fourth The direction is perpendicular to the third direction.

Wherein, the distance between two adjacent first grounding points is equal.

Wherein, the reference ground has a through hole, and the antenna module further includes:

a radio frequency chip, the radio frequency chip is used to generate a radio frequency signal, and the radio frequency chip is arranged on the side of the reference away from the second radiator; and

A feeder, the feeder is electrically connected to the radio frequency chip and the feeder point, and the feeder is disposed in the through hole and insulated from the reference ground.

Wherein, the antenna module also includes:

a radio frequency chip, the radio frequency chip is used to generate a radio frequency signal; and

A feeder, the feeder is electrically connected to the radio frequency chip and the feed point, and the feeder, the first radiator and the second radiator are arranged on the same ground as the reference ground side.

In the second aspect, the implementation mode of this application provides an antenna module, and the antenna module includes:

reference ground;

Wherein, the first radiator has a first free end away from the first ground point, and the first current flows from the first free end to the first ground point;

The second radiator has a second free end away from the second ground point, the second free end is disposed adjacent to the first ground element, and the second current flows from the second ground point to the second free end.

Wherein, the antenna module also includes:

a first grounding element, the first grounding element electrically connects the first grounding point to the reference ground, and the first current also flows to the reference ground through the first grounding element; and

A second grounding element electrically connects the second grounding point to the reference ground, and the second current also flows from the second grounding element to the second grounding point.

Wherein, the first radiator and the second radiator are arranged on the same side of the reference ground, and the first radiator is arranged away from the reference ground compared with the second radiator.

The third aspect of the implementation mode of the present application provides a communication device, the communication device includes the antenna module as described in the first aspect or the second aspect.

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

It should be noted that the terms "first" and "second" in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

Please refer to Fig. 1, Fig. 2 and Fig. 3 together. Fig. 1 is a schematic diagram of the three-dimensional structure of the antenna module provided in an embodiment of the present application; Fig. 2 is an enlarged schematic diagram of the antenna module provided in Fig. 1; Fig. 3 is a diagram A schematic side view of the antenna module shown in 2. This embodiment provides an antenna module 10 . The antenna module 10 can be applied to a communication device 1 (see FIG. 33 ), and the communication device 1 includes, but is not limited to, a mobile phone, a watch, an Internet device (mobile internet device, MID), an electronic book, a portable playback station (Play Station Portable, PSP) or Personal Digital Assistant (Personal Digital Assistant, PDA) and other devices with communication functions. In one embodiment, the antenna module 10 is an antenna module 10 using Ultra Wide Band (UWB) technology. The antenna module 10 includes a reference ground 130 , a first radiator 110 , and a second radiator 120 . The first radiator 110 is spaced apart from the reference ground 130, the first radiator 110 has a first ground point 110a and a feeding point 110b, and the first ground point 110a is electrically connected to the reference ground 130 , the feeding point 110b is used for receiving radio frequency signals. The second radiator 120 is stacked with the first radiator 110 and arranged at intervals to capacitively couple with the first radiator 110, the second radiator 120 has a second ground point 120a, the first radiator 120 The two ground points 120a are electrically connected to the reference ground 130 . The antenna module 10 transmits and receives electromagnetic wave signals of a preset frequency band according to the radio frequency signals.

The reference ground 130 is also called ground pole, or system ground. The reference ground 130 is generally a conductor, such as a conductive patch. For example, the reference ground 130 may be, but not limited to, an aluminum-magnesium alloy patch, a copper sheet, and the like. The shape of the reference ground 130 may be circular, rectangular, oval, or polygonal, and the reference ground 130 is not limited here.

The first radiator 110 may be, but not limited to, a conductive patch. The shape of the first radiator 110 may be a circle, a rectangle, an ellipse, a polygon, and the like. In this implementation manner, it is illustrated by taking the first radiator 110 as an example of a rectangular conductive patch. Specifically, in this implementation manner, the first radiator 110 is a planar inverted-F antenna radiator (Planar Inverted-F Antenna, PIFA).

The first radiator 110 is disposed at a distance from the reference ground 130 , in other words, the first radiator 110 is disposed on one side of the reference ground 130 . The first radiator 110 has a first grounding point 110a and the feeding point 110b, and the first grounding point 110a is spaced apart from the feeding point 110b.

The number of the first grounding point 110a may be one or more, as long as the first radiator 110 can be grounded through the first grounding point 110a. It should be noted that the so-called multiple means that the number is greater than or equal to two. The number of the first grounding point 110a is one or more. In other words, the number of the first grounding point 110a may be one, or two, or three, or more. In the schematic diagram of this embodiment, the number of the first grounding point 110a is taken as an example for illustration. The number of the first grounding points 110 a can be set according to the width of the first radiator 110 and the required radiation efficiency of the first radiator 110 . Generally speaking, when the width of the first radiator 110 is smaller, the number of the first grounding points 110a is smaller; correspondingly, when the width of the first radiator 110 is larger, the first The more the number of grounding points 110a is. Correspondingly, when the size of the first radiator 110 is constant, the more the number of the first grounding points 110a, the higher the radiation efficiency of the first radiator 110; correspondingly, in the When the size of the first radiator 110 is constant, the fewer the number of the first grounding points 110 a, the lower the radiation efficiency of the first radiator 110 .

In this embodiment, the first grounding point 110a is arranged at the end of the first radiator 110 compared with the feeding point 110b.

When the antenna module 10 sends and receives electromagnetic wave signals of a preset frequency band, a current will be generated on the first radiator 110, and the current generated on the first radiator 110 will flow through the first grounding point 110a to the The above reference ground 130. Compared with the feeding point 110b, the first grounding point 110a is set at the end of the first radiator 110, which can make full use of the first radiator 110, so that the first radiator 110 Smaller size. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

For convenience of description, the first radiator 110 has a first ground end 111 and a first free end 112 (also referred to as a first open end). The first ground terminal 111 is provided with the first ground point 110a. The feed point 110b is disposed adjacent to the first ground terminal 111 . The first free end 112 is an end of the first radiator 110 different from the first ground end 111 . In this embodiment, the first free end 112 is set away from the first ground end 111 .

The second radiator 120 may be, but not limited to, a conductive patch. The shape of the second radiator 120 may be a circle, a rectangle, an ellipse, a polygon and so on. The shape of the second radiator 120 may be the same as that of the first radiator 110 or may be different from that of the first radiator 110 . In this implementation manner, the second radiator 120 is also a rectangular conductive patch as an example for illustration. Specifically, in this implementation manner, the second radiator 120 is a planar inverted-F antenna radiator (Planar Inverted-F Antenna, PIFA).

In this embodiment, the second radiator 120 is stacked with the first radiator 110 and arranged at intervals, so as to be capacitively coupled to the first radiator 110 . In other words, the second radiator 120 and the first radiator 110 are stacked and arranged at intervals, and a coupling capacitor is formed between the second radiator 120 and the first radiator 110 .

The second radiator 120 and the first radiator 110 are stacked and arranged at intervals, and the coupling capacitance formed between the second radiator 120 and the first radiator 110 includes but not limited to the following situations. Both the second radiator 120 and the first radiator 110 are disposed on the same side of the reference ground 130, and the second radiator 120 is closer to the reference ground than the first radiator 110 130; or, the second radiator 120 and the first radiator 110 are both arranged on the same side of the reference ground 130, and the second radiator 120 is compared to the first radiator 110 The side away from the reference ground 130 . In this embodiment, it is illustrated by taking that the second radiator 120 is arranged closer to the reference ground 130 than the first radiator 110 as an example.

The number of the second grounding points 120a can be set according to the width of the second radiator 120 and the required radiation efficiency of the second radiator 120 . Generally speaking, when the width of the second radiator 120 is smaller, the number of the second grounding points 120a is smaller; correspondingly, when the width of the second radiator 120 is larger, the second The greater the number of grounding points 120a. Correspondingly, when the size of the second radiator 120 is constant, the more the number of the second grounding points 120a, the higher the radiation efficiency of the second radiator 120; correspondingly, in the When the size of the second radiator 120 is constant, the smaller the number of the second grounding points 120 a is, the lower the radiation efficiency of the second radiator 120 is. It should be noted that the number of the first grounding points 110a and the number of the second grounding points 120a may be the same or different.

In this embodiment, taking the stacking direction of the first radiator 110, the second radiator 120 and the antenna ground 130 as the Z axis as an example, the first radiator 110 is located in the XY plane, so The second radiator 120 is located in the XY plane, and the antenna ground 130 is located in the XY plane as an example for illustration. It can be understood that when the placement positions of the antenna module 10 are different, the stacking directions of the first radiator 110, the second radiator 120 and the antenna ground 130 are different in the direction of the XYZ coordinate axis, And the plane where the first radiator 110 is located, the plane where the second radiator 120 is located, and the plane where the antenna ground 130 is located are different in XYZ coordinate axes.

Compared with the related art where only the first radiator 110 is used to send and receive electromagnetic wave signals of a preset frequency band, the second radiator 120 in the antenna module 10 provided by the embodiment of the present application is stacked and spaced apart from the first radiator 110 It is set that the second radiator 120 is capacitively coupled with the first radiator 110, so that the antenna module 10 not only uses the first radiator 110 but also uses the The second radiator 120 , therefore, the size of the first radiator 110 is reduced compared with the size of the first radiator 110 in the related art. Therefore, the size of the antenna module 10 is small. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

Please continue to refer to FIG. 1 to FIG. 3 , the second ground point 120 a is disposed at an end of the second radiator 120 away from the first ground point 110 a.

When the antenna module 10 sends and receives electromagnetic wave signals of a preset frequency band, a current will be generated on the second radiator 120, and the current generated on the second radiator 120 will flow to the The second radiator 120 is adjacent to the end of the first ground point 110a. The second ground point 120a is set at the end of the second radiator 120 away from the first ground point 110a, which can make full use of the second radiator 120, thereby making the size of the antenna module 10 smaller .

For convenience of description, the second radiator 120 has a second ground terminal 121 and a second free terminal 122 (also referred to as a second open circuit terminal). The second ground terminal 121 is provided with the second ground point 120a. The second free end 122 is an end of the second radiator 120 different from the second ground end 121 . In this embodiment, the second free end 122 is set away from the second ground end 121 . The second free end 122 is disposed adjacent to the first ground point 110 a compared to the first ground end 111 . In other words, the second free end 122 is disposed adjacent to the first ground end 111 . Correspondingly, the first free end 112 is disposed adjacent to the second ground end 121 .

Please refer to FIG. 4 and FIG. 5 . FIG. 4 is a schematic perspective view of the antenna module provided by another embodiment of the present application; FIG. 5 is a schematic side view of the antenna module shown in FIG. 4 . The antenna module 10 provided in this embodiment is basically the same as the antenna module 10 provided in FIGS. 1 to 3 and related embodiments, except that in this embodiment, the second radiator 120 has A plurality of second grounding points 120a. The similarities will not be introduced again, please refer to the previous description. In this embodiment, the second radiator 120 extends along the first direction D1, the second radiator 120 has a plurality of second grounding points 120a arranged at intervals, and the plurality of second grounding members 160 extends along the first direction D1. Arranged in two directions D2, the second direction D2 is perpendicular to the first direction D1.

The so-called multiple means that the number is greater than or equal to two. The second radiator 120 has a plurality of second grounding points 120a arranged at intervals, that is, the number of the second grounding points 120a is multiple, and the second grounding points 120a are arranged at intervals. The number of the second grounding points 120a is multiple, in other words, the number of the second grounding points 120a is greater than or equal to two, for example, the number of the second grounding points 120a is two, or three, or more etc. In this embodiment, the second radiator 120 has three second grounding points 120a arranged at intervals as an example for illustration, which should not be construed as a limitation to the antenna module 10 provided in this application.

The second radiator 120 extends along the first direction D1, that is, the second radiator 120 extends along the first direction D1 in length. In this embodiment, the first direction D1 is the X direction and the second direction D2 is the Y direction as an example, which should not be construed as a limitation to the antenna module 10 provided in the embodiment of the present application. In this embodiment, the stacking direction of the second radiator 120 and the first radiator 110 is a preset direction D0, and in this embodiment, the preset direction D0 is a Z direction.

The number of the second grounding points 120a can be set according to the width of the second radiator 120 and the required radiation efficiency of the second radiator 120 . Generally speaking, when the width of the second radiator 120 is smaller, the number of the second grounding points 120a is smaller; correspondingly, when the width of the second radiator 120 is larger, the second The greater the number of grounding points 120a. Correspondingly, when the size of the second radiator 120 is constant, the more the number of the second grounding points 120a, the higher the radiation efficiency of the second radiator 120; correspondingly, in the When the size of the second radiator 120 is constant, the smaller the number of the second grounding points 120 a is, the lower the radiation efficiency of the second radiator 120 is. It should be noted that the number of the first grounding points 110a and the number of the second grounding points 120a may be the same or different. In the schematic diagram of this embodiment, the number of the first grounding point 110a is the same as the number of the second grounding point 120a, and the number of the first grounding point 110a and the number of the second grounding point 120a are three An illustration is given as an example, and should not be construed as a limitation to the antenna module 10 provided in the embodiment of the present application.

In the antenna module 10 in this embodiment, the second radiator 120 has a plurality of second grounding points 120a arranged at intervals, therefore, the second radiator 120 has higher radiation efficiency.

The plurality of second grounding points 120a are arranged along the second direction D2, and the second direction D2 is perpendicular to the first direction D1, so that the current on the second radiator 120 can be diverted from the first direction. One end of the two ground points 120a flows to each of the second ground points 120a, and the difference of each current path when flowing to the reference ground 130 through each of the second ground points 120a is small, so that the antenna module The radiation effect of group 10 is better.

Understandably, in other implementation manners, the first direction D1 may not be perpendicular to the second direction D2, and when the first direction D1 is not perpendicular to the second direction D2, the antenna module The radiation effect of the group 10 is slightly worse than the radiation effect of the antenna module 10 when the first direction D1 is perpendicular to the second direction D2, but as long as the radiation effect of the antenna module 10 can meet the application requirements That's it.

In this embodiment, when the second radiator 120 has a plurality of second grounding points 120a arranged at intervals, the distance between two adjacent second grounding points 120a is equal.

The plurality of second grounding points 120a are arranged along the second direction D2, and the distance between two adjacent second grounding points 120a is the same, so that the current on the second radiator 120 can pass away from the second When one end of the ground point 120a flows to each of the second ground points 120a, and flows to the reference ground 130 through each of the second ground points 120a, the difference of each current path is smaller, so that the antenna module The radiation effect of 10 is better.

Understandably, in other implementation manners, the distance between two adjacent second grounding points 120a may also be unequal. Compared with the radiation effect when the distance between two adjacent second ground points 120a is equal, the radiation effect of the antenna module 10 decreases when the distance between adjacent second ground points 120a is not equal, However, as long as the radiation effect of the antenna module 10 can meet the application requirements.

Please refer to FIG. 1 to FIG. 5 together. In the two implementations shown in FIG. 1 to FIG. 5 , the second radiator 120 is disposed on the side of the first radiator 110 adjacent to the reference ground 130 .

The first radiator 110 has a feeding point 110b, and the feeding point 110b is used to receive the radio frequency signal, therefore, the first radiator 110 is the main radiator, and the second radiator 120 and The first radiators 110 are arranged at intervals and are coupled, therefore, the second radiators 120 are coupled radiators. The second radiator 120 is arranged on the side of the first radiator 110 adjacent to the reference ground 130, which can avoid the second radiator 120 from shielding the first radiator 110 when transmitting and receiving electromagnetic wave signals, Therefore, the antenna module 10 has a better radiation effect.

Please refer to FIG. 1 to FIG. 5 again, the antenna module 10 further includes a feeding element 140 , a first grounding element 150 and a second grounding element 160 . The feed member 140 is electrically connected to the feed point 110b to transmit the radio frequency signal to the feed point 110b. The first grounding element 150 is electrically connected to the first grounding point 110 a to the reference ground 130 , and the second grounding element 160 is electrically connected to the second grounding point 120 a to the reference ground 130 . The first radiator 110 includes a first free end 112 away from the first ground point 110a, and the first free end 112 is disposed adjacent to the second ground point 120a. The second radiator 120 includes a second free end 122 away from the second ground point 120a, the second free end 122 is disposed on a side of the feed member 140 away from the first ground member 150, And the second free end 122 is spaced apart from the feeder 140 .

The materials of the feeder 140 , the second grounding point 120 a and the second grounding member 160 are all conductive materials, such as conductive metals, conductive non-metallic materials, and the like. The materials of the feeder 140 , the second grounding point 120 a and the second grounding member 160 may be the same or different.

The first free end 112 is away from the first ground point 110a, and the first free end 112 is disposed adjacent to the second ground point 120a, so that the first radiator 110 and the second radiator 120 has more stacked parts, so that the overall size of the antenna module 10 is smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

The second free end 122 is disposed on the side of the feeder 140 away from the first ground point 110a, and the second free end 122 is spaced apart from the feeder 140 , in other words, There is a gap between the second free end 122 and the feeder 140 . The distance between the second free end 122 and the feeder 140 can ensure the insulation between the second free end 122 and the feeder 140 , avoiding the transmission of the radio frequency signal on the feeder 140 The failure of the antenna module 10 caused by the contact between the feed member 140 and the second free end 122 is transmitted to the second free end 122 .

Further, in this embodiment, the second free end 122 is disposed adjacent to the feeder 140 . In other words, the distance d (see FIG. 3 and FIG. 5 ) between the second free end 122 and the feed member 140 is less than or equal to a predetermined distance (such as 3 mm, 5 mm, etc.). That is, the distance between the second free end 122 and the feeder 140 is small. When the distance between the second free end 122 and the feeding part 140 is small, the first radiator 110 and the second radiator 120 overlap more, so that the antenna module 10 The overall size is smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

Please refer to FIG. 6 and FIG. 7 , FIG. 6 is a schematic perspective view of the three-dimensional structure of the antenna module provided in another embodiment of the present application; FIG. 7 is a side view of the antenna module shown in FIG. 6 . The antenna module 10 includes a reference ground 130 , a first radiator 110 , and a second radiator 120 . The first radiator 110 is spaced apart from the reference ground 130, the first radiator 110 has a first ground point 110a and a feeding point 110b, and the first ground point 110a is electrically connected to the reference ground 130 , the feeding point 110b is used for receiving radio frequency signals. The second radiator 120 is stacked with the first radiator 110 and arranged at intervals to capacitively couple with the first radiator 110, the second radiator 120 has a second ground point 120a, the first radiator 120 The two ground points 120a are electrically connected to the reference ground 130 . The antenna module 10 transmits and receives electromagnetic wave signals of a preset frequency band according to the radio frequency signals. In this embodiment, the second radiator 120 is disposed on the side of the first radiator 110 adjacent to the reference ground 130, and the antenna module 10 further includes a feeding element 140 and a first grounding element 150. The feeding part 140 is electrically connected to the feeding point 110b to transmit the radio frequency signal to the feeding point 110b, and the first grounding part 150 is electrically connected to the first grounding point 110a to the reference Land 130.

The second radiator 120 includes a second free end 122 away from the second ground point 120a, the second free end 122 has a through hole 1221, and the feeder 140 is disposed in the through hole 1221, And it is insulated from the second radiator 120 .

In this embodiment, the feeder 140 is disposed in the through hole 1221 , so that part of the second free end 122 can go deep into the gap between the feeder 140 and the first grounding member 150 In the gap, the laminated portion of the first radiator 110 and the second radiator 120 is further increased, so that the overall size of the antenna module 10 is smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

The feeding member 140 is disposed in the through hole 1221 and insulated from the second radiator 120 may include the following methods. In one embodiment, the feeder 140 is disposed in the through hole 1221 , and an insulating layer is filled between the feeder 140 and the second radiator 120 forming the peripheral side wall of the through hole 1221 . medium. In another embodiment, the feeder 140 is disposed in the through hole 1221, and there is a gap between the feeder 140 and the second radiator 120 forming the peripheral side wall of the through hole 1221. gap. In other words, there is no insulating medium filling between the feeder 140 and the second radiator 120 to form the peripheral side wall of the through hole 1221, relying on the feeder 140 and the second radiator 120 forms a gap between the peripheral sidewalls of the through hole 1221 to insulate the feeder 140 from the second radiator 120 .

The feeder 140 is disposed in the through hole 1221 and is insulated from the second radiator 120, so as to prevent the radio frequency signal transmitted on the feeder 140 from passing through the feeder 140 and the second radiator 120. The contact between the second free ends 122 is transmitted to the second free ends 122 causing the antenna module 10 to fail.

In the schematic diagram of this embodiment, the number of the first grounding points 110a is three, and the number of the second grounding points 120a is three, which should not be understood as the antenna provided by the embodiment of the present application. Limitation of module 10. The number of the first grounding point 110a may be one or more. The number of the second grounding point 120a may be one or more. For the definitions of the plurality, please refer to the previous description, which will not be repeated here. The number of the second grounding points 120a may be the same as that of the first grounding points 110a, or the number of the second grounding points 120a may be different from the number of the first grounding points 110a. In addition, it should be noted that when the first radiator 110 has a plurality of first ground members 150 arranged at intervals, that is, when the number of the first ground points 110a is multiple, the first ground members 150 For the arrangement direction of the points 110a and the extension direction of the first radiator 110, please refer to the description about the arrangement direction of the first grounding points 110a and the extension direction of the first radiator 110 in the previous embodiment, which will not be discussed here. Let me repeat. For the distance relationship between the plurality of first grounding points 110a, please refer to the description about the distance of the first grounding point 110a in the previous embodiment, and details will not be repeated here. Correspondingly, when the second radiator 120 has a plurality of second grounding elements 160 arranged at intervals, that is, when the number of the second grounding points 120a is multiple, the row of the second grounding points 120a For the arrangement direction and the extension direction of the second radiator 120 , please refer to the description about the arrangement direction of the second ground point 120 a and the extension direction of the second radiator 120 in the previous embodiment, and details are not repeated here. For the distance relationship between the plurality of second grounding points 120a, please refer to the description about the distance of the second grounding point 120a in the previous embodiment, and details will not be repeated here.

Please refer to Fig. 8, Fig. 9 and Fig. 10, Fig. 8 is a schematic diagram of the orthographic projection of the first radiator and the second radiator in the antenna module in Fig. 2 on the plane where the reference ground is located; Fig. 9 is a diagram The orthographic schematic diagram of the first radiator and the second radiator in the antenna module in Figure 4 on the plane where the reference ground is located; Figure 10 is the first radiator and the second radiator in the antenna module in Figure 6 Schematic diagram of the orthographic projection of the second radiator on the plane where the reference ground is located. The orthographic projection of the first radiator 110 on the reference ground 130 is a first projection S1, the orthographic projection of the second radiator 120 on the reference ground 130 is a second projection S2, and the second Projection S2 falls within the range of said first projection S1.

In these embodiments, the second projection S2 falls within the range of the first projection S1, including: the second projection S2 completely falls within the range of the first projection S1; and the second projection S2 falls within the range of the first projection S1; A part of the projection S2 falls within the range of the first projection S1, and another part of the second projection S2 falls outside the range of the first projection S1. In the three implementations shown in FIG. 8 to FIG. 10 , the second projection S2 completely falls within the range of the first projection S1, therefore, the first radiator 110 and the second The stacked area of the radiator 120 is the largest, so that the antenna module 10 can make full use of the second radiator 120 when transmitting and receiving electromagnetic wave signals of a predetermined frequency band, so that the size of the antenna module 10 can be minimized. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

Understandably, in other implementation manners, please refer to FIG. 11 to FIG. 14 , FIG. 11 is a schematic perspective view of the antenna module provided in another embodiment of the present application; FIG. 12 is the first antenna module in FIG. 11 A schematic diagram of the orthographic projection of a radiator and the second radiator on the plane where the reference ground is located; FIG. 13 is a schematic diagram of the three-dimensional structure of the antenna module provided in another embodiment of the present application; FIG. 14 is the antenna module in FIG. 13 A schematic diagram of the orthographic projection of the first radiator and the second radiator in the group on the plane where the reference ground is located. In the two implementations shown in FIG. 11 to FIG. 14 , the orthographic projection of the first radiator 110 on the reference ground 130 is the first projection S1, and the second radiator 120 is on the reference ground 130 The orthographic projection on 130 is the second projection S2. In this embodiment, a part of the second projection S2 falls within the range of the first projection S1, and another part of the second projection S2 falls within the range of the first projection S1. Outside the range of the first projection S1. A part of the second projection S2 falls within the range of the first projection S1, and another part of the second projection S2 falls outside the range of the first projection S1, so that the antenna module When the group 10 transmits and receives electromagnetic wave signals of a preset frequency band, not only the first radiator 110 can be used, but also the second radiator 120 can be used. Therefore, the size of the first radiator 110 is compared with that in the related art. The first radiator 110 is reduced in size. Therefore, the size of the antenna module 10 is small. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

Please refer to Figure 15, Figure 16 and Figure 17, Figure 15 is a schematic diagram of the three-dimensional structure of the antenna module provided in another embodiment of the present application; Figure 16 is a side view of the antenna module shown in Figure 15; Figure 17 is a schematic diagram of the antenna module shown in Figure 15 A schematic diagram of the projection of the antenna module shown in , on the plane where the reference ground is located. In this embodiment, the second radiator 120 is disposed on a side of the first radiator 110 away from the reference ground 130 .

The second radiator 120 is disposed on the side of the first radiator 110 away from the reference ground 130 , in other words, the first radiator 110 is disposed adjacent to the second radiator 120 One side of the reference ground 130 , that is, the first radiator 110 is disposed between the second radiator 120 and the reference ground 130 . When the feeding point 110 b receives the radio frequency signal, the second radiator 120 is excited through the capacitive coupling between the second radiator 120 and the first radiator 110 . Therefore, when the antenna module 10 transmits and receives electromagnetic wave signals of a preset frequency band, not only the first radiator 110 but also the second radiator 120 can be used. Therefore, the size of the antenna module 10 smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

The second radiator 120 is arranged on the side of the first radiator 110 adjacent to the reference ground 130, which can avoid the second radiator 120 from shielding the first radiator 110 when transmitting and receiving electromagnetic wave signals, Therefore, the antenna module 10 has a better radiation effect. In comparison, the second radiator 120 is disposed on the side of the first radiator 110 adjacent to the reference ground 130 , although the first radiator 110 is disposed on the side adjacent to the second radiator 120 On one side of the reference ground 130, the second radiator 120 may partially block the first radiator 110, but as long as the antenna module 10 can have a smaller size and satisfy the requirements of the antenna The module 10 only needs to send and receive electromagnetic wave signals of a preset frequency band.

In this embodiment, the first radiator 110 includes a first free end 112 away from the first ground point 110a, and the first free end 112 is disposed adjacent to the second ground point 120a. The second radiator 120 includes a second free end 122 away from the second ground point 120a, and the second free end 122 is disposed adjacent to the first ground point 110a.

The first free end 112 is disposed adjacent to the second ground point 120a, and the second free end 122 is disposed adjacent to the first ground point 110a, so that the first radiator 110 and the second The radiator 120 has a larger overlapping area. When the antenna module 10 sends and receives electromagnetic wave signals of a preset frequency band, the first radiator 110 can be used, and more or even all of the second radiator 120 can be used, so that the antenna module 10 can The overall size of the radiators in group 10 is smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

For other structures in the antenna module 10 , please refer to the above, and details will not be repeated here.

In this embodiment, the orthographic projection of the first radiator 110 on the reference ground 130 is the first projection S1, and the orthographic projection of the second radiator 120 on the reference ground 130 is the second projection. S2, the first projection S1 falls within the range of the second projection S2.

The first projection S1 falling within the range of the second projection S2 includes: the first projection S1 completely falls within the range of the second projection S2; and a part of the first projection S1 falls within the range of the second projection S2 Within the range of the second projection S2, and another part of the first projection S1 falls outside the range of the second projection S2. In this embodiment, the first projection S1 completely falls within the range of the second projection S2. Therefore, the stacked area of the first radiator 110 and the second radiator 120 can be maximized, so that the antenna module 10 can make full use of the second radiation when transmitting and receiving electromagnetic wave signals of a preset frequency band. The body 120 minimizes the size of the antenna module 10 . When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

Understandably, in other embodiments, please refer to FIG. 18 and FIG. 19. FIG. 18 is a schematic perspective view of the antenna module provided in another embodiment of the present application; FIG. 19 is the first antenna module in FIG. A schematic diagram of an orthographic projection of a radiator and the second radiator on the plane where the reference ground is located. In this embodiment, a part of the first projection S1 falls within the range of the second projection S2, and another part of the first projection S1 falls outside the range of the second projection S2.

The design of the first radiator 110 and the second radiator 120 in this embodiment can also make the antenna module 10 not only use the first radiator 110 but also The second radiator 120 can also be used, therefore, the size of the first radiator 110 is reduced compared with that of the first radiator 110 in the related art. Therefore, the size of the antenna module 10 is small. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1, it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1.

With reference to the various implementations described above, the extension direction of the first radiator 110 is the same as the extension direction of the second radiator 120 .

When the extending direction of the first radiator 110 is in the same direction as the second radiator 120, when the antenna module 10 sends and receives electromagnetic wave signals of a preset frequency band, not only the first radiator 110 but also the Taking advantage of the size of the second radiator 120 in the extending direction makes the size of the antenna module 10 smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

Please refer to FIG. 4, the first radiator 110 extends along the third direction D3, the first radiator 110 has a plurality of first grounding points 110a arranged at intervals, and the plurality of first grounding points 110a are arranged along the fourth The direction D4 is arranged, and the fourth direction D4 is perpendicular to the third direction D3.

The plurality of first grounding points 110a are arranged along a fourth direction D4, and the fourth direction D4 is perpendicular to the third direction D3, so that the current on the first radiator 110 can be diverted from the first One end (first free end 112) of a ground point 110a flows to each of the first ground points 110a, and the difference of each current path when flowing to the reference ground 130 via each first ground point 110a is relatively small. is small, so that the radiation efficiency of the first radiator 110 is relatively balanced.

Understandably, in other implementation manners, the third direction D3 may not be perpendicular to the fourth direction D4, and when the third direction D3 is not perpendicular to the fourth direction D4, the antenna module The radiation effect of the group 10 is slightly worse than the radiation effect of the antenna module 10 when the third direction D3 is perpendicular to the fourth direction D4, but as long as the radiation effect of the antenna module 10 can meet the application requirements That's it.

In one embodiment, the distance between two adjacent first grounding points 110a is equal.

The plurality of first grounding points 110a are arranged along the fourth direction D4, and the distance between two adjacent first grounding points 110a is the same, so that the current on the first radiator 110 can pass away from the first One end of the ground point 110a flows to each of the first ground points 110a, and the difference of each current path when flowing to the reference ground 130 through each of the first ground points 110a is smaller, so that the first radiation Radiation efficiencies throughout the body 110 are relatively balanced.

Understandably, in other implementation manners, the distances between two adjacent first grounding points 110a may also be unequal. Compared with the radiation effect when the distance between two adjacent first ground points 110a is equal, the radiation effect of the antenna module 10 is reduced when the distance between adjacent first ground points 110a is not equal, However, as long as the radiation effect of the antenna module 10 can meet the application requirements.

In this embodiment, the third direction D3 is the same as the first direction D1, and the fourth direction D4 is the same as the second direction D2 as an example for illustration. In other implementation manners, the third direction D3 may not be the same as the first direction D1, and the fourth direction D4 may not be the same as the second direction D2.

Please refer to FIGS. 20 to 22 together. FIG. 20 is a perspective view of an antenna provided in another embodiment of the present application; FIG. 21 is a cross-sectional view of the antenna module shown in FIG. 20 along the line I-I; FIG. A three-dimensional schematic diagram of the antenna module without the dielectric substrate. The reference ground 130 has a through hole 131 , and the antenna module 10 further includes a radio frequency chip 170 and a feeder 140 . The radio frequency chip 170 is used for generating radio frequency signals, and the radio frequency chip 170 is disposed on a side of the reference away from the second radiator 120 . The feeding element 140 is electrically connected to the radio frequency chip 170 and the feeding point 110 b, and the feeding element 140 is disposed in the through hole 131 and insulated from the reference ground 130 .

The radio frequency chip 170 is disposed on the side of the reference ground 130 away from the second radiator 120 , in other words, the radio frequency chip 170 and the second radiator 120 are disposed on the same side of the reference ground 130 . sides of the back. The feeder 140 is disposed in the through hole 131 of the reference ground 130, which facilitates the electrical connection between the radio frequency chip 170 and the first radiator 110, and the length of the feeder 140 is relatively short. Furthermore, the antenna module 10 has a higher degree of integration.

The feeding member 140 is disposed in the through hole 131 and insulated from the reference ground 130 may include the following methods. In one embodiment, the feeder 140 is disposed in the through hole 131 , and an insulating medium is filled between the feeder 140 and the reference ground 130 forming a peripheral sidewall of the through hole 131 . In another embodiment, the feeder 140 is disposed in the through hole 131 , and there is a gap between the feeder 140 and the reference ground 130 forming a peripheral sidewall of the through hole 131 . In other words, there is no insulating medium filling between the feeder 140 and the reference ground 130 forming the peripheral sidewall of the through hole 131 , relying on the feeder 140 and the reference ground 130 to form the A gap is maintained between the peripheral sidewalls of the through hole 131 to insulate the feeder 140 from the reference ground 130 .

In this embodiment, the antenna module 10 further includes a dielectric substrate 180 . The dielectric substrate 180 is used to carry the reference ground 130 , the first radiator 110 and the second radiator 120 . The radio frequency chip 170 is electrically connected to the first radiator 110 through the feeder 140 embedded in the dielectric substrate 180 . Specifically, the dielectric substrate 180 includes a first surface 181a and a second surface 180b disposed opposite to each other. The use of the dielectric substrate 180 for carrying the first radiator 110 , the second radiator 120 and the reference ground 130 includes: when the second radiator 120 is closer to the first radiator 110 than the first radiator 110 When the reference ground 130 is set, the first radiator 110 is set on the first surface 181a, the second radiator 120 is embedded in the dielectric substrate 180, and the radio frequency chip 170 is set on the second surface 180b (attach to the second surface 180b, or have a distance from the second surface 180b); or, when the second radiator 120 is adjacent to the first radiator 110 compared to the When the reference ground 130 is set, the first radiator 110 and the second radiator 120 are both embedded in the dielectric substrate 180, and the radio frequency chip 170 is arranged on one side of the second surface 180b (attached to close to the second surface 180b, or have a distance from the second surface 180b); when the second radiator 120 is set away from the reference ground 130 compared with the first radiator 110, the The second radiator 120 is disposed on the first surface 181a, and the radio frequency chip 170 is disposed on one side of the second surface 180b (bonded to the second surface 180b, or adjacent to the second surface 180b There is a distance between them); or, when the second radiator 120 is set away from the reference ground 130 compared with the first radiator 110, both the first radiator 110 and the second radiator 120 Embedded in the dielectric substrate 180, the radio frequency chip 170 is disposed on one side of the second surface 180b (adhering to the second surface 180b, or having a distance from the second surface 180b).

When the antenna module 10 includes a dielectric substrate 180 , a feed hole 183 , a first ground hole 181 and a second ground hole 182 are opened on the dielectric substrate 180 . The feeder 140 is disposed in the feeder hole 183 , the first grounding member 150 is disposed in the first grounding hole 181 , and the second grounding member 160 is disposed in the second grounding hole 182 Inside. In one embodiment, conductive materials are respectively set in the feeding hole 183, the first grounding hole 181 and the second grounding hole 182, and the conductive material in the feeding hole 183 is the The electrical component 140 , the conductive material located in the first ground hole 181 is the first ground component 150 , and the conductive material located in the second ground hole 182 is the second ground component 160 . Understandably, the feeding element 140 , the first grounding element 150 and the first radiator 110 can be formed in the same manufacturing process, so as to save the preparation time of the antenna module 10 . The second ground member 160 and the second radiator 120 can be formed in the same process to save the manufacturing time of the antenna module 10 .

The dielectric substrate 180 may be, but not limited to, a high density interconnection board or a circuit board prepared by a high density interconnection (High Density Interconnector, HDI) process. The dielectric substrate 180 is made of insulating material.

In this embodiment, the dielectric substrate 180 includes a first sub-dielectric substrate 1801 , a second sub-dielectric substrate 1802 , and a third sub-dielectric substrate 1803 that are sequentially stacked. The surface of the first sub-dielectric substrate 1801 away from the second sub-dielectric substrate 1802 forms the first surface 180a, and the surface of the third dielectric substrate 1803 away from the second sub-dielectric substrate 1802 forms the second surface 180a. Surface 180b. The surface of the first sub-dielectric substrate 1801 facing away from the second radiator 120 (ie, the first surface 180 a ) is used to carry the first radiator 110 . The surface of the second sub-dielectric substrate 1802 adjacent to the first sub-dielectric substrate 1801 is used for carrying the second radiator 120 . In other words, the second radiation 120 is disposed between the first sub-dielectric substrate 1801 and the second sub-dielectric substrate 1802 . The surface of the third sub-dielectric substrate 1803 facing away from the second sub-dielectric substrate 1802 (ie, the second surface 180 b ) is used for carrying the radio frequency chip 170 .

In this embodiment, the dielectric substrate 180 includes a first sub-dielectric substrate 1801, a second sub-dielectric substrate 1802, and a third sub-dielectric substrate 1803 that are sequentially stacked, so that the first radiator 110, the second sub-dielectric substrate 1803 The arrangement of the two radiators 120 and the reference ground 130 . Understandably, in other implementation manners, the dielectric substrate 180 may also have other layers.

Please refer to Fig. 23, Fig. 24 and Fig. 25 together. Fig. 23 is a perspective view of an antenna module provided in another embodiment of the present application; Fig. 24 is a cross-sectional view of the antenna module shown in Fig. 23 along the direction II-II ; FIG. 25 is a cross-sectional view of the antenna module shown in FIG. 23 along the direction III-III in one embodiment. In this embodiment, the antenna module 10 further includes a radio frequency chip 170 and a feeder 140 . The radio frequency chip 170 is used for generating radio frequency signals. The feeder 140 is electrically connected to the radio frequency chip 170 and the feed point 110b, and the feeder 140, the first radiator 110 and the second radiator 120 are arranged on the reference ground 130 on the same side.

In this embodiment, the feeding element 140 and the first radiator 110 and the second radiator 120 are set on the same side of the reference ground 130, therefore, the radio frequency chip 170 can be set on the reference ground 130. The side surface 180c of the whole composed of the ground 130 , the first radiator 110 and the second radiator 120 . Compared with the radio frequency chip 170 disposed on the side of the reference ground 130 away from the second radiator 120 , the size of the antenna module 10 provided in this embodiment is smaller in the thickness direction. It can be understood that the thickness of the antenna module 10 is the lamination direction of the first radiator 110 , the second radiator 120 and the reference ground 180c. In this embodiment, the size of the antenna module 10 in the thickness direction is relatively small.

In this embodiment, the radio frequency chip 170 is directly disposed on the side of the whole composed of the reference ground 130 , the first radiator 110 and the second radiator 120 . The arrangement of the radio frequency chip 170 in this embodiment makes the structure of the antenna module 10 relatively compact.

Please refer to Figure 26, please refer to Figure 26, Figure 27 and Figure 28 together, Figure 26 is a perspective view of the antenna module provided by another embodiment of the present application; Figure 27 is the antenna module shown in Figure 26 along IV - A cross-sectional view in the IV direction; FIG. 28 is a cross-sectional view of the antenna module shown in FIG. 27 along the V-V direction. The antenna module 10 provided in this embodiment is basically the same as the antenna module 10 provided in the previous embodiments, except that in this embodiment, the radio frequency chip 170 is disposed on a circuit board 190 . When the radio frequency chip 170 is disposed on the circuit board 190 . The radio frequency chip 170 can be arranged using the position on the circuit board 190 , which facilitates the integration of the radio frequency chip 170 and other electronic devices on the circuit board 190 .

It can be understood that, although in this embodiment, the whole composed of the reference ground 130 , the first radiator 110 and the second radiator 120 is not arranged on the circuit board 190 on which the radio frequency chip 170 is arranged As an example, in other implementation manners, the reference ground 130 , the first radiator 110 and the second radiator 120 and the radio frequency chip 170 may also be disposed on the same circuit board 190 .

Please refer to FIG. 4 , FIG. 5 and FIG. 29 together. FIG. 29 is a schematic diagram of the current distribution of the antenna module shown in FIG. 4 . In this embodiment, the antenna module 10 includes a reference ground 130 , a first radiator 110 and a second radiator 120 . The first radiator 110 has a feed point 110 b and a first ground point 110 a, the feed point 110 b is used for receiving radio frequency signals, and the first ground point 110 a is electrically connected to the reference ground 130 . The second radiator 120 is stacked with the first radiator 110 and capacitively coupled, the second radiator 120 has a second ground point 120a, and the second ground point 120a is electrically connected to the reference ground 130. When the feeding point 110b is loaded with the radio frequency signal, the first radiator 110 forms a first current I1, and the second radiator 120 generates a flow in the same direction as the first current I1. The second current I2.

When the feeding point 110b is loaded with a radio frequency signal, a first current I1 is formed on the first radiator 110, and a second current I1 that flows in the same direction as the first current I1 is generated on the second radiator 120. The current I2 includes: the flow direction of the second current I2 is completely the same as that of the first current I1, or the flow direction of the second current I2 is different from the flow direction of the first current I1, but the second current I2 has the same current component as the flow direction of the first current I1.

In this embodiment, the current flowing in the same direction as that of the first radiator 110 is generated on the second radiator 120, which can be regarded as increasing the current path generated by the radio frequency signal (also referred to as delaying the radio frequency signal). The current path for signal generation), therefore, the size of the antenna module 10 can be made smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

Specifically, the first radiator 110 has a first free end 112 away from the first ground point 110a, and the first current I1 flows from the first free end 112 to the first ground point 110a. The second radiator 120 has a second free end 122 away from the second ground point 120a, the second free end 122 is disposed adjacent to the first ground member 150, and the second current I2 comes from the first ground point 120a. The two ground points 120a flow to the second free end 122 .

The second free end 122 is disposed adjacent to the first ground member 150, therefore, the first radiator 110 and the second radiator 120 have more stacked parts, so that the first current I1 and the first current I1 The second current I2 has many overlapping paths. Compared with the antenna module 10 in which the first radiator 110 and the second radiator 120 overlap less, the size of the antenna module 10 provided in the embodiment of the present application is smaller. When the antenna module 10 is arranged on a circuit board (such as a main board), it can occupy less area of the circuit board, which facilitates the layout and integration design of the antenna module 10 on the circuit board. When the antenna module 10 is applied in the communication device 1 , it can facilitate the layout and integration of the antenna module 10 and other components in the communication device 1 in the communication device 1 .

The antenna module 10 further includes a first ground member 150 and a second ground member 160 . The first grounding element 150 electrically connects the first grounding point 110 a to the reference ground 130 , and the first current I1 also flows to the reference ground 130 through the first grounding element 150 . The second grounding element 160 electrically connects the second grounding point 120 a to the reference ground 130 , and the second current I2 also flows from the second grounding element 160 to the second grounding point 120 a.

It should be noted that the currents in the first radiator 110 and the second radiator 120 in the antenna module 10 shown in this embodiment are only illustrated as an example of an embodiment described above, and should not be understood This is an introduction to the antenna module 10 provided in the embodiment of the present application. In other implementation manners, the currents of the first radiator 110 and the second radiator 120 also follow the above rules.

In the implementation manners of the present application, for the positional relationship between the first radiator 110 and the second radiator 120 , please refer to the descriptions of the previous implementation manners, which will not be repeated here. For example, in one embodiment, the first radiator 110 and the second radiator 120 are set on the same side of the reference ground 130, and the first radiator 110 is compared to the second radiator The body 120 is arranged facing away from the reference ground 130 . In other words, the second radiator 120 is disposed on a side of the first radiator 110 adjacent to the reference ground 130 .

Please also refer to FIG. 30 . FIG. 30 is a schematic diagram of S parameters of the antenna module shown in FIG. 4 and FIG. 5 . In this schematic diagram, the abscissa is the frequency, the unit is GHz, and the ordinate is the S parameter, the unit is dB. In this embodiment, the length of the first radiator 110 is selected as 3mm. It can be seen from the simulation diagram that the center frequency point of the electromagnetic wave signal of the preset frequency band sent and received by the antenna module 10 is about 6.5 GHz. In other words, the preset frequency band includes 6.5GHz. It can be understood that the 6.5 GHz is only the center frequency of the preset frequency band used in the simulation diagram for the antenna module 10 to work, and should not be construed as a limitation to the antenna module 10 provided by the embodiment of the present application.

In the antenna module 10 in the related art, the length of the antenna radiator in the antenna module 10 with a center frequency of 6.5 GHz and a resonance mode of 1/4 wavelength is usually 6.3 mm. Since in this embodiment, the length of the first radiator 110 is greater than the length of the second radiator 120, therefore, the length of the first radiator 110 can be regarded as the radiator in the antenna module 10 ( Including the length of the whole composed of the first radiator 110 and the second radiator 120), it can be seen that the antenna module 10 provided in this embodiment is shorter than the radiator of the antenna module 10 in the related art, And the size is reduced by more than 50%.

Please refer to FIG. 31 . FIG. 31 is a schematic diagram of S parameters of three antenna modules. In the figure, the abscissa is the frequency, the unit is GHz, and the ordinate is the S parameter, the unit is dB. In this schematic diagram, based on the structure of the antenna module 10 shown in FIG. 4 and FIG. 5 , three kinds of S-parameter curves are obtained by adjusting the size of the coupling gap t1 . Curve ① is the S parameter curve diagram of antenna module 10 when the coupling gap t1=0.25mm; Curve ② is the S parameter curve diagram of antenna module 10 when the coupling gap t1=0.35mm; Curve ③ is the S parameter curve diagram when the coupling gap t1=0.45 The S-parameter curve diagram of the antenna module 10. In the curve ①, the center frequency point of the antenna module 10 is 6.552GHz; in the curve ②, the center frequency point of the antenna module 10 is 7.44GHz; in the curve ③, the antenna The center frequency point of the module 10 is 8.2918Hz when it works. From the curve ①, the curve ②, and the curve ③, it can be seen that the central frequency point of the antenna module 10 changes with the coupling gap between the first radiator 110 and the second radiator 120 during operation. That is, the larger the coupling gap t1 between the first radiator 110 and the second radiator 120, the higher the center frequency point of the antenna module 10 when it works, and the closer the preset frequency band is. high frequency offset.

Please refer to FIG. 32 . FIG. 32 is a schematic diagram of S parameters of three antenna modules. In this schematic diagram, based on the structure of the antenna module 10 shown in FIG. 4 and FIG. 5 , three kinds of S-parameter curves are obtained by adjusting the length of the first radiator 110 . In the figure, the abscissa is the frequency, the unit is GHz, and the ordinate is the S parameter, the unit is dB. In this schematic diagram, curve ① is a schematic diagram of S parameters when the length of the first radiator 110 is 2.2 mm; curve ② is a schematic diagram of S parameters when the length of the first radiator 110 is 1.5 mm; curve ③ is a schematic diagram of the first radiator The S-parameter schematic diagram when the length of 110 is 0.8mm. In the curve ①, the center frequency point of the antenna module 10 is 6.522GHz; in the curve ②, the midline frequency point of the antenna module 10 is 7.5613GHz; in the curve ③, the antenna module 10 The midline frequency at work is 8.7975GHz. From the curve ①, the curve ②, and the curve ③, it can be seen that the center frequency point of the antenna module 10 changes with the length of the first radiator 110 when the antenna module 10 is working. That is, the shorter the length of the first radiator 110 is, the higher the center frequency point of the antenna module 10 is when it is working, and the higher the preset frequency band is shifted to high frequency.

The embodiment of the present application also provides a communication device 1 . Please also refer to FIG. 33 , which is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 1 includes the antenna module 10 described in any of the foregoing implementation manners. The communication device 1 includes, but is not limited to, a mobile phone, a watch, an Internet device (mobile internet device, MID), an e-book, a portable playback station (Play Station Portable, PSP) or a personal digital assistant (Personal Digital Assistant, PDA), etc. equipment for communication. The antenna module 10 of the UWB technology does not use a carrier wave, but a non-sinusoidal narrow pulse of nanosecond to microsecond level to transmit data. Therefore, it occupies a wide spectrum range and is suitable for high-speed and short-distance communication. FCC stipulates that the working frequency range of the antenna module 10 of UWB technology is from 3.1 GHz to 10.6 GHz, and the minimum working frequency bandwidth is 500 MHz. The center frequency point of the current mainstream UWB technology antenna module 10 when transmitting and receiving electromagnetic wave signals in a preset frequency band is 6.5 GHz or 8 GHz. In the schematic diagram of this embodiment, the antenna module 10 includes two antenna modules 10 , and for convenience of description, the two antenna modules 10 are named as a first antenna module 10 a and a second antenna module 10 b respectively. Understandably, the fact that the communication module 1 includes two antenna modules 10 should not be construed as a limitation to the communication device 1 provided in the embodiment of the present application. In other implementation manners, the communication device 1 may further include one antenna module 10 , or three or more antenna modules 10 .

The ranging principle of the antenna module in the communication device provided by the embodiment of the present application will be introduced below with reference to FIG. 33 and FIG. 34 . FIG. 34 is a schematic diagram of transmitting and receiving electromagnetic wave signals by the communication device in FIG. 33 . Please refer to Fig. 34. In Fig. 34, point P ₁ represents the first antenna module 10a, point P ₂ represents the second antenna module 10b, point P ₃ represents the position where the electromagnetic wave signal comes from; point P ₄ represents P The midpoint of the line connecting ₁ and _P2 . In this embodiment, θ ₁ represents the angle between the connecting line P ₁ P ₂ and the connecting line P ₃ P ₁ ; θ ₂ represents the angle between the connecting line P ₁ P ₂ and the connecting line P ₃ P ₂ ; θ represents the angle between the connection line of P ₁ P ₂ and the connection line of P ₃ P ₄ ; α represents the complementary angle of θ; D represents the distance between P ₃ P ₄ ; λ represents the first antenna module 10a and the wavelength of the electromagnetic wave signal sent and received by the second antenna module 10b; f represents the frequency of the electromagnetic wave signal sent and received by the first antenna module 10a and the second antenna module 10b; d _max represents the first antenna module 10a and the second antenna module The maximum value of the pitch for group 10b.

Among them, D is much larger than λ, then θ ₁ ≈θ ₂ ≈θ

Since the first antenna module 10a and the second antenna module 10b are antenna modules 10 utilizing UWB technology, therefore:

The range of f is 6.25GHz～8.25GHz;

Correspondingly,

The range of λ is 36.4mm～48mm, then:

The range of λ/2 is 18.2mm to 24mm.

_dmax = 18mm;

d ₁ =d cosθ=d sinα (1)

The time difference _t1 when the electromagnetic wave signal reaches the first antenna module 10a and the second antenna module 10b is:

Wherein, c represents the speed of light, and because _t1 represents the time difference between the arrival of the electromagnetic wave signal at the first antenna module 10a and the second antenna module 10b, it is also called the time difference of arrival (Time Difference of Arrival, TDOA)

The phase difference between the electromagnetic wave signal reaching the first antenna module 10a and the second antenna module 10b

for:

because

Indicates the phase difference between the arrival of the electromagnetic wave signal at the first antenna module 10a and the second antenna module 10b, therefore, it is also called a phase difference of arrival (Phase Difference of Arrival, PDOA).

Wherein, α represents the angle of arrival (Angle of Arrival, AOA). It can be seen from (4) that the angle of arrival (AOA) α and phase difference of arrival (PDOA)

relevant.

FIG. 35 is a schematic diagram of a communication device communicating with a base station according to an embodiment of the present application; FIG. 36 is a schematic diagram of a plurality of base stations positioning a communication device. The communication device 1 transmits a first signal to the base station 2, the base station 2 receives the first signal, and transmits a second signal to the communication device 1 after a response time T _reply , and the communication device 1 receives For the second signal, where the time difference between the communication device 1 receiving the second signal and the communication device 1 transmitting the first signal is T _loop , then:

TOF＝(T _loop -T _reply )/2 (5)

D＝c*TOF (6)

Wherein, D is the distance between the communication device 1 and the base station, and c is the speed of light=3*10 ⁸ m/s.

The positioning algorithm of the communication device 1 is the TDOA algorithm, that is, the positioning algorithm using time difference. By measuring the time when the signal reaches the base station, the distance between the communication device 1 and the base station can be determined, and by comparing the time difference between the first signal sent by the communication device 1 and reaching multiple different base stations 2, the communication device can be made 1 is the intersection point of the hyperbola with the focal point and the distance difference being the major axis, and the intersection point is the position of the communication device 1 . Wherein, the distance difference is equal to the speed of light c*time difference.

It should be noted that although an application scenario of the antenna module 10 in the communication device 1 is introduced above, it can be understood that the antenna module 10 (the first antenna module 10a and the The second antenna module 10b) should not be understood as a limitation to the specific structure of the antenna module 10 provided in this application.

In addition, it should be noted that although in the above-mentioned embodiments, the antenna module 10 is an antenna module 10 of UWB technology as an example for illustration and description, in another embodiment, the antenna module 10 It is an antenna module 10 of Bluetooth technology. Correspondingly, the preset frequency band in the antenna module 10 is a frequency band supported by Bluetooth technology. For example, the preset frequency band can be a Bluetooth 5G frequency band (5.15GHz-5.85GHz) , or the Bluetooth 2.4G band (2.4GHz-2.48GHz). In other embodiments, the antenna module 10 can also be an antenna module 10 of Wireless Fidelity (Wireless Fidelity, WIFI) technology, and correspondingly, the preset frequency band in the antenna module 10 is supported by WIFI technology frequency band.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned Changes, modifications, substitutions and modifications are made to the embodiments, and these improvements and modifications are also regarded as the protection scope of the present application.

Claims

An antenna module, wherein the antenna module includes:

reference ground;

A first radiator, the first radiator is spaced apart from the reference ground, the first radiator has a first ground point and a feed point, the first ground point is electrically connected to the reference ground, and the first radiator is electrically connected to the reference ground. said feed point is used to receive radio frequency signals; and

The second radiator, the second radiator is stacked with the first radiator and arranged at intervals to capacitively couple with the first radiator, the second radiator has a second ground point, the first radiator two ground points are electrically connected to the reference ground;

The antenna module sends and receives electromagnetic wave signals of a preset frequency band according to the radio frequency signal.
The antenna module according to claim 1, wherein the second ground point is disposed at an end of the second radiator away from the first ground point.
The antenna module according to claim 2, wherein the second radiator extends along the first direction, the second radiator has a plurality of second grounding points arranged at intervals, and the plurality of second grounding members arranged along a second direction, the second direction being perpendicular to the first direction.
The antenna module according to claim 3, wherein the distances between two adjacent second grounding points are equal.
The antenna module according to claim 1, wherein the second radiator is disposed on a side of the first radiator adjacent to the reference ground.
The antenna module according to claim 5, wherein the antenna module further comprises a feeder, a first ground member and a second ground member, the feeder is electrically connected to the feed point, so that the The radio frequency signal is transmitted to the feeding point, the first grounding piece is electrically connected to the first grounding point to the reference ground, and the second grounding piece is electrically connected to the second grounding point to the reference ground ;

The first radiator includes a first free end away from the first ground point, and the first free end is disposed adjacent to the second ground point;

The second radiator includes a second free end away from the second grounding point, the second free end is disposed on a side of the feeding member away from the first grounding member, and the second free end The end is spaced apart from the feeder.
The antenna module according to claim 5, wherein the antenna module further comprises a feeder and a first ground member, the feeder is electrically connected to the feed point to transmit the radio frequency signal to The feed point, the first ground member electrically connects the first ground point to the reference ground;

The second radiator includes a second free end away from the second ground point, the second free end has a through hole, the feeder is arranged in the through hole, and is connected to the second radiator body insulation.
The antenna module according to claim 1, wherein the second radiator is disposed on a side of the first radiator away from the reference ground.
The antenna module as claimed in claim 8, wherein,

The first radiator includes a first free end away from the first ground point, and the first free end is disposed adjacent to the second ground point;

The second radiator includes a second free end away from the second ground point, and the second free end is disposed adjacent to the first ground point.
The antenna module according to claim 1, wherein the extending direction of the first radiator is the same as the extending direction of the second radiator.
The antenna module according to claim 8, wherein the orthographic projection of the first radiator on the reference ground is a first projection, and the orthographic projection of the second radiator on the reference ground is a second projection , the second projection falls within the range of the first projection.
The antenna module according to claim 1, wherein the first radiator extends along a third direction, the first radiator has a plurality of first grounding points arranged at intervals, and the plurality of first grounding points arranged along a fourth direction, the fourth direction being perpendicular to the third direction.
The antenna module according to claim 12, wherein the distance between two adjacent first grounding points is equal.
The antenna module according to claim 1, wherein the reference ground has a through hole, and the antenna module further comprises:

a radio frequency chip, the radio frequency chip is used to generate a radio frequency signal, and the radio frequency chip is arranged on the side of the reference away from the second radiator; and

A feeder, the feeder is electrically connected to the radio frequency chip and the feeder point, and the feeder is disposed in the through hole and insulated from the reference ground.
The antenna module according to claim 1, wherein the antenna module further comprises:

a radio frequency chip, the radio frequency chip is used to generate a radio frequency signal; and

A feeder, the feeder is electrically connected to the radio frequency chip and the feed point, and the feeder, the first radiator and the second radiator are arranged on the same ground as the reference ground side.
An antenna module, wherein the antenna module includes:

reference ground;

a first radiator, the first radiator has a feeding point and a first grounding point, the feeding point is used to receive a radio frequency signal, and the first grounding point is electrically connected to the reference ground; and

A second radiator, the second radiator is stacked with the first radiator and capacitively coupled, the second radiator has a second ground point, and the second ground point is electrically connected to the reference ground ;

When the feeding point is loaded with the radio frequency signal, a first current is formed on the first radiator, and a second current that flows in the same direction as the first current is generated on the second radiator.
The antenna module according to claim 16, wherein the first radiator has a first free end away from the first ground point, and the first current flows from the first free end to the first grounding point;

The second radiator has a second free end away from the second ground point, the second free end is disposed adjacent to the first ground element, and the second current flows from the second ground point to the second free end.
The antenna module according to claim 17, wherein the antenna module further comprises:

a first grounding element, the first grounding element electrically connects the first grounding point to the reference ground, and the first current also flows to the reference ground through the first grounding element; and

A second grounding element electrically connects the second grounding point to the reference ground, and the second current also flows from the second grounding element to the second grounding point.
The antenna module according to claim 16, wherein the first radiator and the second radiator are arranged on the same side of the reference ground, and the first radiator is compared to the second The radiator is arranged away from the reference ground.
A communication device, wherein the communication device comprises the antenna module according to any one of claims 1-19.