WO2020020013A1

WO2020020013A1 - Millimetre wave wireless terminal device

Info

Publication number: WO2020020013A1
Application number: PCT/CN2019/096129
Authority: WO
Inventors: 黄奂衢; 王义金; 简宪静
Original assignee: 维沃移动通信有限公司
Priority date: 2018-07-24
Filing date: 2019-07-16
Publication date: 2020-01-30
Also published as: CN108987943B; CN108987943A

Abstract

Provided is a millimetre wave wireless terminal device, comprising a non-conductive housing, and a conductive sheet attached to the non-conductive housing, wherein the conductive sheet comprises a first face and a second face, the first face being the face of the conductive sheet that is attached to the non-conductive housing; and the conductive sheet is provided with at least two gaps, the second face is provided with at least two antenna feed points, and different antenna feed points of the at least two antenna feed points are located on the sides of different gaps.

Description

Millimeter wave wireless terminal equipment

Cross-reference to related applications

This application claims the priority of Chinese Patent Application No. 201810818901.X filed in China on July 24, 2018, the entire contents of which are hereby incorporated by reference.

Technical field

The present disclosure relates to the field of communication technologies, and in particular, to a millimeter wave wireless terminal device.

Background technique

With the rapid development of communication technology, multi-antenna communication has become the mainstream and future development trend of wireless terminal equipment. With the advent of the fifth generation mobile communication (5G) era, millimeter-wave antennas have gradually been introduced to terminal equipment. . In the related art, a millimeter-wave antenna is generally in the form of a block-shaped independent antenna module, so a relatively large accommodating space needs to be provided for the independent antenna module in a terminal device. In this way, the volume size of the entire terminal device is often large, and the appearance design of the product is often limited, or the performance of the related antenna is reduced, so the overall competitiveness of the terminal device is relatively low.

Summary of the Invention

Some embodiments of the present disclosure provide a millimeter-wave wireless terminal device to solve the problem of requiring a relatively large accommodation space for a block-shaped millimeter-wave antenna in the wireless terminal device, and making the overall terminal device larger in size.

In order to solve the above technical problems, the present disclosure is implemented as follows:

Some embodiments of the present disclosure provide a millimeter wave wireless terminal device including a non-conductive case and a conductive sheet attached to the non-conductive case; the conductive sheet includes a first surface and a second surface, The first surface is a side where the conductive sheet is bonded to the non-conductive case; the conductive sheet is provided with at least two gaps, and the second surface is provided with at least two antenna feeding points, and the at least Different antenna feed points of the two antenna feed points are located at the sides of different slots.

A millimeter-wave wireless terminal device according to some embodiments of the present disclosure includes a non-conductive casing and a conductive sheet attached to the non-conductive casing; the conductive sheet includes a first surface and a second surface, and The first surface is a side where the conductive sheet is bonded to the non-conductive case; the conductive sheet is provided with at least two slots, and the second surface is provided with at least two antenna feeding points, and the at least two Different antenna feed points among the antenna feed points are located at the sides of different slots. In this way, the conductive sheet provided with a slot is equivalent to a millimeter wave array antenna of the terminal device, and the conductive sheet is attached to a non-conductive case, thereby saving the space for the millimeter wave antenna and reducing the wireless terminal device. It also has a high degree of commonality between appearance and structure, and has a high degree of freedom in antenna array design, so it can improve the overall competitiveness of terminal equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of some embodiments of the present disclosure, the drawings used in the description of some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings in the following description are only the present disclosure. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor.

FIG. 1 is one of the schematic structural diagrams of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure;

FIG. 2 is a schematic diagram of a setting position of an antenna feeding point provided by some embodiments of the present disclosure; FIG.

FIG. 3 is one of the structural schematic diagrams of the conductive sheet provided by some embodiments of the present disclosure; FIG.

4 is a second schematic structural diagram of a conductive sheet provided by some embodiments of the present disclosure;

5 is a third structural schematic view of a conductive sheet provided by some embodiments of the present disclosure;

6 is a fourth schematic diagram of a structure of a conductive sheet provided by some embodiments of the present disclosure;

7 is a second schematic structural diagram of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure;

8 is a third schematic structural diagram of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure;

FIG. 9 is a fifth schematic structural diagram of a conductive sheet provided by some embodiments of the present disclosure; FIG.

FIG. 10 is a fourth schematic structural diagram of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure.

detailed description

In the following, the technical solutions in some embodiments of the present disclosure will be clearly and completely described with reference to the drawings in some embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, but not all of them. example. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present disclosure.

Referring to FIG. 1, FIG. 1 is a schematic structural diagram of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure. As shown in FIG. 1, it includes a non-conductive case 1 and a non-conductive case 1 attached to the non-conductive case 1. A conductive sheet 2; the conductive sheet 2 includes a first surface and a second surface; the first surface is a side where the conductive sheet 2 and the non-conductive case 1 are bonded; the conductive sheet 2 is provided with at least Two slots 21, the second surface is provided with at least two antenna feeding points 3, and different antenna feeding points 3 of the at least two antenna feeding points 3 are located at the sides of different slots 21.

In this embodiment, the non-conductive case 1 is made of a non-conductive material, for example, it may be plastic, glass, ceramic, or the like. The non-conductive case 1 may include five faces, a first face 11, a second face 12, a third face 13, a fourth face 14, and a fifth face 15. The conductive sheet 2 may be pasted on any one of the five faces. For example, as shown in FIG. 1, the conductive sheet 2 may be pasted on the second surface 12 inside the non-conductive case 1.

In this embodiment, the above-mentioned conductive sheet 2 may be a metal sheet, a flexible circuit board, a conductive layer formed by processes such as laser direct molding technology or printing direct molding technology, or a conductive substance may be sprayed on the sheet. and many more. The conductive sheet 2 may be connected to the main ground of the system, or may not be connected to the main ground of the system.

In this embodiment, the above conductive sheet 2 is provided with at least two slots 21, and at least two antenna feeding points 3 are provided on the second surface of the conductive sheet 2, and the different antennas in the at least two antenna feeding points 3 are different. The feed points 3 are located on the sides of the different slots 21. In this way, it can be ensured that at least two slots 21 on the conductive sheet 2 have antenna feeding points 3, so that at least two slots 21 can form a millimeter wave array antenna. The antenna feed points 3 of the millimeter wave array antenna are all located on the side of the slot 21, so that the millimeter wave signal can be directed to the antenna feed point 3 of the millimeter wave array antenna and radiated through the conductive sheet 2. In addition, the conductive sheet 2 can also receive millimeter wave signals. Of course, an antenna feeding point 3 may be set for each slot 21. The inside of the slit 21 may be air, or may be filled with a non-conductive material, or the like.

In this way, the conductive sheet 2 is provided with at least two slits 21, which is equivalent to forming a millimeter-wave array antenna. The conductive sheet 2 is attached to the non-conductive case 1, thereby saving the space for the millimeter-wave array antenna and reducing The small size of the terminal equipment improves the overall competitiveness of the terminal equipment. Since the millimeter-wave array antenna formed by the conductive sheet 2 in this embodiment is not block-shaped, it has relatively strong compatibility with the structure of a millimeter-wave wireless terminal device, and the space of the structure of the terminal device, that is, the millimeter-wave array can be used to the greatest extent. Antenna design has better conformality. There is no need to significantly increase the overall system size of the millimeter-wave wireless terminal equipment, and the design of the appearance of the millimeter-wave wireless terminal equipment can be maintained (such as plastic, glass and other non-conductive material terminal equipment bodies).

Secondly, since the millimeter wave array antenna formed by the conductive sheet 2 is not block-shaped and can be designed inside the terminal device, the size, shape, and placement position of the millimeter wave array antenna can be designed with a high degree of freedom to achieve Good radiation performance. For example, under the product trend of high-screen-percentage wireless terminal equipment, there is little space on the front (screen) of the product to place the antenna. In this embodiment, this antenna can be placed on the side of the millimeter-wave wireless terminal device, which can avoid When the wireless terminal device is placed upright (that is, with the screen facing up) on a metal table, the back of the millimeter-wave wireless terminal device is blocked by the metal table, which significantly reduces the performance of the millimeter-wave array antenna and significantly degrades the probability of the user ’s wireless experience. The overall competitiveness of the brand.

Again, the design method of this embodiment can also maintain existing antennas, such as cellular antennas and non-cellular antennas, etc., and can also take into account the settings of millimeter wave array antennas (such as 5G millimeter wave array antennas) so that millimeter waves The array antenna occupies a relatively small accommodation space. Of course, antennas in related technologies (such as cellular antennas and non-cellular antennas) can also be integrated with millimeter-wave array antennas, so that the conductive sheet 2 includes both millimeter-wave array antennas, and cellular or non-cellular antennas. , Can further reduce the space occupied by these antennas by the terminal equipment.

In some embodiments of the present disclosure, the millimeter-wave wireless terminal device may be a mobile phone, a tablet computer, a laptop computer, a personal digital assistant (PDA), and a mobile Internet device. (Mobile Internet Device, MID) or Wearable Device (Wearable Device) and so on.

Optionally, the conductive sheet 2 is attached to the inner wall of the non-conductive case 1.

In this embodiment, the above-mentioned conductive sheet 2 is attached to the inner wall of the non-conductive case 1, so that the space inside the millimeter wave wireless terminal device can be fully utilized without occupying too much space inside the wireless terminal device. Significantly increases the overall system size of the millimeter-wave wireless terminal equipment, and can maintain the design of the appearance of the wireless terminal equipment.

Optionally, the antenna feeding point 3 is located at a non-center position on the side of the slot 21.

In this embodiment, the antenna feed point 3 is located at a non-center position on the side of the slot 21, so that the millimeter wave array antenna can have better performance. In order to better understand the foregoing setting manner, reference may be made to FIG. 2, which is a schematic diagram of a setting position of an antenna feeding point provided by some embodiments of the present disclosure. As shown in FIG. 2, there are at least four slots 21 on the conductive sheet 2. The antenna feed point 3 of the first slot and the third slot from left to right is close to the right end of the slot 21 and the second slot from left to right. The antenna feed point 3 of the fourth slot is close to the left end of the slot 21, so that the millimeter wave array antenna can have better performance. Of course, this is only an example of one setting of the antenna feeding point 3, and there may be some other setting methods besides this, which is not limited in this embodiment.

Optionally, the slits 21 are rectangular slits, and each slit 21 is disposed laterally with respect to the conductive sheet 2 where the slit 21 is located;

Alternatively, each slit 21 is longitudinally disposed with respect to the conductive sheet 2 where the slit 21 is located;

Alternatively, each slit 21 is obliquely disposed with respect to the conductive sheet 2 where the slit 21 is located, and the inclination angle is the same.

In this embodiment, in order to better understand the above-mentioned setting manner, reference may be made to FIGS. 3 to 5, which are schematic diagrams of the structure of the conductive sheet provided by some embodiments of the present disclosure. As shown in FIG. 3, each slit 21 is disposed laterally with respect to the conductive sheet 2 where the slit 21 is located; as shown in FIG. 4, each slit 21 is longitudinally disposed with respect to the conductive sheet 2 where the slit 21 is located; As shown in FIG. 5, each slit 21 is disposed obliquely with respect to the conductive sheet 2 where the slit 21 is located, and the inclination angle is the same. Of course, there may be other setting methods besides this, which is not limited in this embodiment.

In this embodiment, different ways of setting the slot 21 can make the millimeter-wave array antenna composed of a plurality of slots 21 have different performances. The user can select a suitable setting method according to different application scenarios in practice, thereby more satisfying the user's personality. Changing needs.

Optionally, the at least two slits 21 are arranged along a length direction of the conductive sheet 2.

In this embodiment, the at least two slits 21 may form a slit family along the length direction of the conductive sheet 2, and the slit family includes at least two slits 21. In order to better understand the above setting method, please refer to FIG. 6, which is a schematic structural diagram of a conductive sheet provided by some embodiments of the present disclosure.

It can be seen in FIG. 6 that there are at least four slits 21 on the conductive sheet 2, and the at least four slits 21 are arranged along the length direction of the conductive sheet 2. The length of the single slot 21 is L1, and L1 may be approximately half of the corresponding wavelength of the center frequency of the working frequency band of the millimeter wave antenna, and the width of the slot 21 is not limited. The interval between the edges of the slot 21 is W1, and the interval W1 can be determined by the isolation of two adjacent antennas and the beam scanning coverage angle of the millimeter wave array antenna. The sum of the total length of the at least four slots 21 and the total length of the slot interval is L2, and L2 does not exceed the length of the conductive sheet 2 in the Y direction.

Optionally, the length of each slit 21 is the same, and the interval between any two adjacent slits 21 is the same.

In this embodiment, the length of each slit 21 is the same, and the interval between any two adjacent slits 21 is the same. In this way, the distribution of the slits 21 is relatively uniform, so that the millimeter wave array antenna composed of the slits 21 can have relatively good radiation performance.

Optionally, the interval between two adjacent slots 21 is determined by the isolation of two adjacent antennas and the beam scanning coverage angle of the array antenna.

In this embodiment, the interval between the two adjacent slots 21 is determined by the isolation of the two adjacent antennas and the beam scanning coverage angle of the array antenna, so that the millimeter-wave signal can be better matched to work.

Optionally, the conductive sheet 2 is attached to one surface of the inner wall of the non-conductive case 1;

Alternatively, the conductive sheet 2 is attached to two adjacent surfaces of the inner wall of the non-conductive case 1;

Alternatively, the conductive sheet 2 is attached to three surfaces of the inner wall of the non-conductive case 1, and any two of the three surfaces intersect.

In this embodiment, the above-mentioned conductive sheet 2 is attached to one surface of the inner wall of the non-conductive case 1, so that the accommodating space occupied by the conductive sheet 2 can be minimized and the conductive sheet 2 can be conveniently installed. At this time, as shown in FIG. 1, the conductive sheet 2 is attached to the second surface 12 of the non-conductive case 1. The length of the conductive sheet 2 does not exceed the length of the second surface 12 in the Y direction and the width of the conductive sheet 2. Does not exceed the width in the Z direction of the second surface 12.

In this embodiment, the conductive sheet 2 is attached to two adjacent surfaces of the inner wall of the non-conductive case 1. In order to better understand this setting method, please refer to FIG. 7, which is a schematic structural diagram of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure. As shown in FIG. 7, when the width of the second surface 12 on the non-conductive case 1 in the Z direction is narrow, there is not enough space for the longitudinal placement of the slot 21. At this time, the conductive sheets 2 where the millimeter wave array antenna is located can be placed at the same time. On the second surface 12 and the fifth surface 15, the conductive sheet 2 is closely attached to the second surface 12 and the fifth surface 15 of the non-conductive case 1. In this way, the conductive sheet 2 does not occupy the antenna space of other antennas, and makes full use of the structure of the millimeter wave wireless terminal device to set the millimeter wave array antenna, which improves the communication effect without affecting the overall appearance of the millimeter wave wireless terminal device.

In this embodiment, the conductive sheet 2 is attached to three surfaces of the inner wall of the non-conductive case 1, and any two of the three surfaces intersect. In order to better understand this setting method, please refer to FIG. 8, which is a schematic structural diagram of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure. As shown in FIG. 8, if there are more gaps 21 on the conductive sheet 2 to achieve a relatively large space coverage, the conductive sheet 2 where the millimeter wave array antenna is located can be placed on the first surface 11 and the second surface 12 at the same time. On the fifth surface 15, the conductive sheet 2 is in close contact with the first surface 11, the second surface 12, and the fifth surface 15 of the non-conductive case 1. In this way, the conductive sheet 2 can make fuller use of the 3D space of the millimeter wave wireless terminal device, so that the position occupied by the millimeter wave array antenna is optimal, and the coverage of the millimeter wave array antenna is improved.

Optionally, the conductive sheet 2 is further provided with at least one of a cellular antenna and a non-cellular antenna.

In this embodiment, a millimeter-wave array antenna can be disposed on the conductive sheet 2 together with at least one of a cellular antenna and a non-cellular antenna, so that the conductive sheet 2 can integrate multiple antennas, thereby further saving millimeter-wave wireless The accommodation space inside the terminal device.

In order to better understand the above setting manner, reference may be made to FIG. 9, which is a schematic structural diagram of a conductive sheet provided by some embodiments of the present disclosure. As shown in FIG. 9, in addition to at least four slits 21, a conductive point 4 and a feeding point 5 of a cellular antenna or a non-cellular antenna are provided on the conductive sheet 2 (feeding point 5 may or may not be provided). Therefore, the conductive sheet 2 is a cellular antenna or a non-cellular antenna, and a millimeter wave antenna is also integrated into the conductive sheet 2 to complete the integration of the millimeter wave array antenna with the cellular antenna and the non-cellular antenna.

Optionally, the length of the slot 21 is determined according to a half wavelength corresponding to the center frequency of the antenna operating frequency band.

In this embodiment, the length of the slot 21 is determined according to the half-wavelength corresponding to the center frequency of the antenna operating frequency band, so that the millimeter-wave signal can be better matched to work. In addition, the length of the slot 21 may be approximately a half wavelength corresponding to the center frequency of the antenna operating frequency band.

Optionally, the slit 21 is a “ten” -shaped slit, an “I” -shaped slit, a square slit or a circular slit.

In this embodiment, the above-mentioned slit 21 is a “T” -shaped slit, an “I” -shaped slit, a square slit, or a circular slit, so that a plurality of setting modes can be provided for the slit and different performances can be provided. Of course, in addition, some other shapes of slits and the like can be set according to the performance results of the test, which is not limited in this embodiment.

Optionally, the conductive sheet 2 is attached to the outer wall of the non-conductive case 1.

In this embodiment, when the internal space of the millimeter-wave wireless terminal device is relatively small and it is not suitable to provide the conductive sheet 2, the conductive sheet 2 may be attached to the outer wall of the non-conductive case 1, so that the conductive sheet 2 The setting does not affect some other devices inside the terminal device. In addition, an ink layer may be provided on the conductive sheet 2 for covering, or an ink layer or the like may not be provided, which is not limited in this embodiment.

In order to better understand the above setting manner, reference may be made to FIG. 10, which is a schematic structural diagram of a millimeter wave wireless terminal device provided by some embodiments of the present disclosure. At this time, the conductive sheet 2 is disposed on the sixth surface 16 of the outer wall of the non-conductive casing 1, so that it does not affect other devices inside the millimeter wave wireless terminal device.

A millimeter wave wireless terminal device according to some embodiments of the present disclosure includes a non-conductive casing 1 and a conductive sheet 2 attached to the non-conductive casing 1; the conductive sheet 2 includes a first surface and a first surface. Two sides, the first side is the side where the conductive sheet 2 is bonded to the non-conductive case 1; the conductive sheet 2 is provided with at least two gaps 21, and the second surface is provided with at least two Antenna feeding points 3. Different antenna feeding points 3 of the at least two antenna feeding points 3 are located on the sides of different slots 21. In this way, the conductive sheet 2 provided with the slot 21 is equivalent to a millimeter-wave array antenna of a millimeter-wave wireless terminal device, and the conductive sheet 2 is attached to the non-conductive case 1, thereby saving the space for receiving the millimeter-wave antenna. It can reduce the volume of terminal equipment and improve the overall competitiveness of millimeter wave wireless terminal equipment.

It should be noted that, in this article, the terms "including", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, It also includes other elements not explicitly listed, or elements inherent to such a process, method, article, or device. Without more restrictions, an element limited by the sentence "including a ..." does not exclude that there are other identical elements in the process, method, article, or device that includes the element.

The embodiments of the present disclosure have been described above with reference to the accompanying drawings, but the present disclosure is not limited to the specific implementations described above, and the specific implementations described above are only schematic and not restrictive. Those of ordinary skill in the art at Under the inspiration of this disclosure, many forms can be made without departing from the spirit of the present disclosure and the scope of protection of the claims, which all fall within the protection of this disclosure.

Claims

A millimeter-wave wireless terminal device includes a non-conductive case and a conductive sheet attached to the non-conductive case. The conductive sheet includes a first surface and a second surface. The first surface is a side where the conductive sheet is bonded to the non-conductive case; the conductive sheet is provided with at least two slots, and the second surface is provided with at least two antenna feeding points, and the at least two Different antenna feed points among the antenna feed points are located at the sides of different slots.
The millimeter wave wireless terminal device according to claim 1, wherein the conductive sheet is attached to an inner wall of the non-conductive case.
The millimeter wave wireless terminal device according to claim 2, wherein the antenna feeding point is located at a non-center position on a side of the slot.
The millimeter wave wireless terminal device according to claim 2, wherein the slits are rectangular slits, and each slit is laterally disposed with respect to the conductive sheet where the slit is located;

Alternatively, each slit is longitudinally disposed with respect to the conductive sheet where the slit is located;

Alternatively, each slit is disposed obliquely with respect to the conductive sheet where the slit is located, and the inclination angle is the same.
The millimeter wave wireless terminal device according to claim 2, wherein the at least two slits are arranged along a length direction of the conductive sheet.
The millimeter wave wireless terminal device according to claim 5, wherein the length of each slot is the same, and the interval between any two adjacent slots is the same.
The millimeter wave wireless terminal device according to claim 5, wherein an interval between two adjacent slots is determined by an isolation degree of the adjacent two antennas and a beam scanning coverage angle of the array antenna.
The millimeter wave wireless terminal device according to claim 2, wherein the conductive sheet is attached to one surface of an inner wall of the non-conductive case;

Alternatively, the conductive sheet is attached to two adjacent surfaces of the inner wall of the non-conductive case;

Alternatively, the conductive sheet is attached to three surfaces of the inner wall of the non-conductive case, and any two of the three surfaces intersect.
The millimeter wave wireless terminal device according to claim 2, wherein the conductive sheet is further provided with at least one of a cellular antenna and a non-cellular antenna.
The millimeter wave wireless terminal device according to claim 2, wherein a length of the slot is determined according to a half wavelength corresponding to a center frequency of an antenna operating frequency band.
The millimeter wave wireless terminal device according to claim 2, wherein the slot is a "T" slot, an "I" slot, a square slot or a circular slot.
The millimeter wave wireless terminal device according to claim 1, wherein the conductive sheet is attached to an outer wall of the non-conductive case.