WO2020020056A1

WO2020020056A1 - Terminal device

Info

Publication number: WO2020020056A1
Application number: PCT/CN2019/096686
Authority: WO
Inventors: 王义金; 黄奂衢; 简宪静
Original assignee: 维沃移动通信有限公司
Priority date: 2018-07-24
Filing date: 2019-07-19
Publication date: 2020-01-30
Also published as: CN108987906B; CN108987906A

Abstract

Provided by the present disclosure is a terminal device. The terminal device comprises a metal frame, one side of the metal frame is provided with at least two H-shaped slits, each H-shaped slit comprises a first sub-slit and a second sub-slit that are parallel to each other, as well as a third sub-slit perpendicular to the first sub-slit; an inner side wall of the metal frame is provided with at least two antenna feed points, and different antenna feed points among the at least two antenna feed points are located at side walls of the third sub-slits of different slits; the metal frame is electrically connected to a grounding panel inside the terminal device.

Description

Terminal Equipment

Cross-reference to related applications

This application claims the priority of Chinese Patent Application No. 201810819678.0 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 terminal device.

Background technique

With the rapid development of communication technology, multi-antenna communication has become the mainstream and future development trend of terminal equipment, and in the process, millimeter wave antennas have been gradually introduced to terminal equipment. In the related art, a millimeter-wave antenna is generally in the form of an independent antenna module, so it is necessary to set an accommodation space for the independent antenna module in a terminal device. In this way, the volume size of the entire terminal device is relatively large, resulting in a lower overall competitiveness of the terminal device.

Summary of the Invention

Some embodiments of the present disclosure provide a terminal device to solve the problem that a receiving space is required for a millimeter wave antenna in the terminal device, so that the volume of the entire terminal device is relatively large.

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

Some embodiments of the present disclosure provide a terminal device including a metal frame, at least two gaps are opened on one side of the metal frame, the gaps are "I" -shaped gaps, and the "I" -shaped gaps Including a first sub-slot and a second sub-slot parallel to each other, and a third sub-slot perpendicular to the first sub-slot; the inner side wall of the metal frame 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 on the sides of the third sub-slot in different slots; the metal frame is electrically connected to the floor in the terminal device.

A terminal device according to some embodiments of the present disclosure includes a metal frame, and one side of the metal frame is provided with at least two gaps, the gaps are "I" -shaped gaps, and the "I" -shaped gaps include A first sub-slot and a second sub-slot parallel to each other, and a third sub-slot perpendicular to the first sub-slot; the inner side wall of the metal frame is provided with at least two antenna feeding points, and the at least two Different antenna feed points in the antenna feed points are located on the sides of the third sub-slot in different slots; the metal frame is electrically connected to the floor in the terminal device. In this way, the metal frame with the gap is equivalent to the millimeter wave array antenna of the terminal device, and the metal frame is also the radiator of the communication antenna, thereby saving the space for the millimeter wave antenna, reducing the volume of the terminal device, and Better support the design of metal appearance, and compatible design with the appearance of metal as other antennas, 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 terminal device provided by some embodiments of the present disclosure;

2 is a schematic structural diagram of a gap provided by some embodiments of the present disclosure;

3 is one of the structural schematic diagrams of one side of a metal frame provided by some embodiments of the present disclosure;

4 is a second schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure;

FIG. 5 is a third schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure; FIG.

FIG. 6 is a fourth schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure; FIG.

FIG. 7 is a fifth schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure; FIG.

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

9 is a parameter diagram of a slot family array antenna provided by some embodiments of the present disclosure;

FIG. 10 is a sixth schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure; FIG.

11 is a schematic diagram of a relative position of a signal reflection wall and a side of a metal frame provided by some embodiments of the present disclosure;

12 is a second schematic structural diagram of a terminal device according to some embodiments of the present disclosure;

FIG. 13 is a third structural schematic diagram of a 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 terminal device according to some embodiments of the present disclosure. As shown in FIG. 1, it includes a metal frame 1, and one side of the metal frame 1 is provided with at least two gaps 15. The slit 15 is an I-shaped slit, and the I-shaped slit includes a first sub slit 151 and a second sub slit 152 parallel to each other, and a third sub slit 153 perpendicular to the first sub slit 151. ; The inner side wall of the metal frame 1 is provided with at least two antenna feeding points 2, and different antenna feeding points 2 of the at least two antenna feeding points 2 are located on the sides of the third sub-slot 153 of the different slots 15; The metal frame 1 is electrically connected to the floor 3 in the terminal device.

In this embodiment, the metal frame 1 may include a first side 11, a second side 12, a third side 13, and a fourth side 14. The metal frame 1 may be a frame connected end to end or not connected. The at least two slits 15 may be provided on one side of the metal frame 1, or at least two slits 15 may be provided on opposite sides of the metal frame 1. The inside of the slit 15 may be air, or may be filled with a non-conductive material or the like.

In this embodiment, the above-mentioned slit 15 is an “I” -shaped slit, and the “I” -shaped slit includes a first sub slit 151 and a second sub slit 152 parallel to each other, and is perpendicular to the first sub slit 151. Of the third child gap 153. In order to better understand the “I” -shaped gap, please refer to FIG. 2, which is a schematic structural diagram of a gap provided by some embodiments of the present disclosure. As shown in FIG. 2, the above-mentioned slit 15 is an “I” -shaped slit, and the slit 15 includes a first sub slit 151 and a second sub slit 152 parallel to each other, and a third Child gap 153. One “I” -shaped slot is equivalent to one antenna unit in a millimeter-wave array antenna, so multiple “I” -shaped slots can form a millimeter-wave array antenna.

In this embodiment, at least two antenna feeding points 2 are provided on the inner side wall of the metal frame 1, and different antenna feeding points 2 of the at least two antenna feeding points 2 are located in third sub-slots of different slots 15. The side of 153 can ensure that at least two slots 15 on one side of the metal frame 1 have an antenna feeding point 2, so that at least two slots 15 can form a millimeter wave array antenna. The antenna feed points 2 of the millimeter wave array antenna are all located on the third sub-slot 153, so that the millimeter wave signal can be directed to the antenna feed point 2 of the millimeter wave array antenna and radiated through the metal frame 1. In addition, the metal frame 1 can also receive millimeter wave signals.

In this embodiment, at least two slits 15 are formed on one side of the metal frame 1, so that the at least two slits 15 are equivalent to form a millimeter wave array antenna for radiating a millimeter wave signal. When at least two slits 15 are provided on the third side edge 13, the communication antenna may be shown as a dashed line in FIG. 1. The communication antenna is composed of the third side edge 13, part of the second side edge 12, and part of the fourth side edge 14. composition. In addition, the millimeter-wave array antenna composed of at least two slots 15 may have a tiny slot inside the radiator of the communication antenna, so as not to affect the electrical parameters of the communication antenna. The above-mentioned floor 3 may be a circuit board or a metal middle case or the like. The metal frame 1 is electrically connected to the floor 3 in the terminal device, so that the metal frame 1 can be grounded.

In this way, by providing at least two slots 15 on one side of the frame of the terminal device, it is equivalent to forming a millimeter wave array antenna, thereby saving the space for accommodating the millimeter wave array antenna, not occupying the antenna space of other antennas, and reducing The volume of the terminal equipment improves the overall competitiveness of the terminal equipment. Making full use of the structure of the terminal device as an antenna improves the communication effect without affecting the metal texture of the terminal device. In addition, when the back of the terminal device is blocked by a metal table, or when the user holds the terminal device, the performance of the millimeter wave antenna can be prevented from being greatly reduced, so that the user has a better experience.

In addition, millimeter-wave array antennas are integrated into communication antennas in related technologies, such as 2G, 3G, 4G, or 6G, without affecting the communication quality of the communication antenna and the function of the terminal device. At the same time, the millimeter wave array antenna itself can obtain a good wide frequency width. Due to the existence of the "I" -shaped slot, it can cover multiple frequency bands of 5G millimeter wave, which is convenient for the design of a full-screen antenna. And through the design of the metal frame of the terminal device, it does not affect the metal texture of the terminal device, and can improve the wireless experience of the user when roaming internationally or even globally.

The current mainstream millimeter wave antenna design is often more difficult to show better antenna performance under the design of the metal appearance, that is, it is more difficult to support the design of the metal appearance, resulting in a decline in product competitiveness. This design manner of this embodiment can better support the design of the metal appearance, and can be compatible with the design of the appearance metal as other antennas to improve the overall competitiveness of the product. While solving the problem of requiring an accommodation space for the millimeter wave antenna in the terminal device, so that the volume of the entire terminal device is relatively large, it can also solve the problem that it is difficult for the terminal device to support the design of the metal appearance.

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

Optionally, the lengths of the first sub-slot 151 and the second sub-slot 152 are different.

In this embodiment, the lengths of the first sub-slot 151 and the second sub-slot 152 are different, so that the millimeter wave signals of different frequency bands can be matched.

Optionally, the length of the first sub-slot 151 is shorter than the length of the second sub-slot 152, and the length of the first sub-slot 151 is determined according to a half wavelength corresponding to the center frequency of the first working frequency band of the antenna. The length of the second sub-slot 152 is determined according to the half-wavelength corresponding to the center frequency of the second working frequency band of the antenna.

In this embodiment, the length of the first sub-slot 151 is shorter than the length of the second sub-slot 152, and the length of the first sub-slot 151 is approximately a half wavelength of the center frequency of the first frequency band in which the antenna operates. The length of the sub-slot 152 is approximately a half wavelength of the center frequency of the second frequency band in which the antenna operates, so that it can better match the millimeter wave signals in different frequency bands for operation.

Optionally, the arrangement manner of any two adjacent slits 15 in the at least two slits 15 is the same;

Alternatively, any two adjacent slits 15 in the at least two slits 15 are arranged in different ways.

In this embodiment, in order to better understand the above arrangement in the same arrangement, please refer to FIG. 3, which is a schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure. As shown in FIG. 3, there are at least four slits 15 on the third side 13, and the arrangement of any two adjacent slits 15 is the same.

In this embodiment, in order to better understand the different arrangements of the foregoing arrangements, reference may be made to FIGS. 4 to 6, which are schematic structural diagrams of one side of a metal frame provided by some embodiments of the present disclosure. In FIG. 4 and FIG. 5, the two adjacent slots 15 are equivalent to being placed 90 degrees vertically, so that the horizontal polarization and vertical polarization components of the millimeter wave array antenna can be improved, so as to improve the wireless connection capability and antenna of the millimeter wave array antenna. The isolation between the units (slot 15) further improves the beam coverage of the millimeter wave array antenna.

In FIG. 6, since the length of the first sub-slot 151 is shorter than the length of the second sub-slot 152, setting the adjacent slots 15 as shown in FIG. 6 can shorten the interval between the slots 15 and improve the antenna unit (slot 15). Isolation between them, so that the overall space occupied by the millimeter wave array antenna becomes smaller and the electrical performance is better.

Optionally, each of the slits 15 is inclined with respect to the metal frame 1 where the slits 15 are located, and the inclination angles are the same.

In this embodiment, in order to better understand the above-mentioned setting manner, reference may be made to FIG. 7, which is a schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure. As can be seen in FIG. 7, there are at least four inclined slits 15 on the third side edge 13. When the terminal device is placed on a desktop, the angle between the third sub-slot of each slot 15 and the horizontal plane may be 45 degrees. Of course, in addition, some other tilting angles, etc. may be set for the slit 15, which is not limited in this embodiment.

In this embodiment, the interval between the slots 15 can be shortened and the isolation between the slots 15 can be improved, so that the overall space occupied by the millimeter wave array antenna becomes smaller and the electrical performance is better. The overall space occupied by a millimeter-wave array antenna becomes smaller, and the isolation between adjacent slots 15 is improved, thereby increasing the scanning coverage of the array antenna.

Optionally, the antenna feeding point 2 is located at a center position of an edge of the third sub-slot 153.

In this embodiment, in order to better understand the above-mentioned setting manner, reference may be made to FIG. 8, 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. 8, there are at least four slots 15 on the third side 13, and each slot is provided with an antenna feed point 2, and the antenna feed point 2 is located at the center of the edge of the third sub-slot, so that Make the millimeter wave array antenna have better performance.

Optionally, the at least two slits 15 are arranged along the length direction of the metal frame 1.

In this embodiment, the at least two slits 15 may form a slit family, and the slit family includes at least two slits 15. In addition, there may be at least two gap families on the metal frame, such as a first gap family and a second gap family. The first slot family and the second slot family include at least two slots, respectively, and the first slot family may be located on the second side edge 12 and the second slot family may be located on the fourth side edge 14. In this way, by providing slot families on different sides, the beam coverage of the millimeter wave array antenna can be further improved.

Please refer to FIG. 9, which is a schematic diagram of parameters of a slot family array antenna provided by some embodiments of the present disclosure. The return loss of the plurality of slots 15 is shown in FIG. 9. Each slot can cover 24-44GHz bandwidth, that is, multiple 5G millimeter wave bands. The access of the feed signal can excite the first sub-slot 151 and the second sub-slot 152 to form a first resonance M and a second resonance N of the millimeter wave array antenna.

Optionally, a signal reflection wall 4 is further provided in the terminal device. There is a gap between the signal reflection wall 4 and the at least two gaps 15, and the signal reflection wall 4 is electrically connected to the floor 3.

In this embodiment, there is a gap between the signal reflection wall 4 and the at least two slits 15, and the gap may be air, or may be filled with some non-conductive material, and so on. The signal reflection wall 4 is electrically connected to the floor 3 so that the signal reflection wall 4 can be grounded. Due to the existence of the signal reflection wall 4, the gain pattern of the millimeter wave array antenna can be optimized, the main beam coverage of the millimeter wave array antenna can be improved, and the communication effect of the millimeter wave array antenna can be improved.

Optionally, the upper edge of the signal reflection wall 4 is not lower than the upper edge of the slot 15, and the lower edge of the signal reflection wall 4 is not higher than the lower edge of the slot 15.

In this embodiment, the upper edge of the signal reflection wall 4 is not lower than the upper edge of the slot 15, and the lower edge of the signal reflection wall 4 is not higher than the lower edge of the slot 15, so that the signal reflection wall 4 can These gaps 15 are well covered to facilitate better reflection of the signal.

In order to better understand the above setting method, please refer to FIG. 10 and FIG. 11. FIG. 10 is a schematic structural diagram of one side of a metal frame provided by some embodiments of the present disclosure, and FIG. 11 is a schematic diagram of relative positions of a signal reflection wall and one side of a metal frame provided by some embodiments of the present disclosure.

As can be seen in FIG. 10, there are at least four slits 15 on the fourth side 14 of the metal frame 1. The length of the first sub-slot 151 of each slit 15 is L1, and the length of the second sub-slot 152 is L2. The length of the third sub-slot 153 is L3. L1 is approximately half of the wavelength corresponding to the center frequency of the first frequency band in which the millimeter-wave antenna operates, and L2 is approximately half of the corresponding wavelength of the center frequency in the second frequency band in which the millimeter-wave antenna operates. , L1 <L2. The interval between the first sub-slots 151 of the adjacent slots 15 is W1, the interval between the second sub-slots 152 of the adjacent slots 15 is W2, and the interval W2 is determined by the isolation of the two adjacent slots 15 and the millimeter wave array The maximum scanning angle of the antenna is determined. The first sub-slot 151, the second sub-slot 152, and the third sub-slot 153 of the plurality of slits 15 form a slit family.

In FIG. 10, the distance between the upper edge and the lower edge of the slit 15 is H1, and the length of the slit family composed of the plurality of slits 15 is L4. In FIG. 11, the distance between the upper edge and the lower edge of the signal reflection wall 4 is H2, the length of the signal reflection wall 4 is L5, and the signal reflection wall 4 and the gap family are on the same side of the floor 3, and H2 ≧ H1. In this way, the upper edge of the signal reflection wall 4 is not lower than the upper edge of the slit 15, and the lower edge of the signal reflection wall 4 is not higher than the lower edge of the slit 15. Therefore, these gaps 15 can be covered well, so as to better reflect signals. Of course, in order to better cover these gaps 15, L5 ≧ L4 can be optionally set, so that the gap family can not exceed the range of the length of the signal reflection wall 4.

Optionally, the signal reflection wall 4 is formed by a metal outer wall of a battery of the terminal device; or, the signal reflection wall 4 is formed by a metal wall of a battery compartment of the terminal device, wherein the battery compartment is Structure for accommodating a battery of the terminal device.

In this embodiment, the signal reflection wall 4 is formed by a metal outer wall of a battery of the terminal device; or the signal reflection wall 4 is formed by a metal wall of a battery compartment of the terminal device, so that no additional material is required. To save the cost of terminal equipment. In addition, the gain pattern of the millimeter wave array antenna can be optimized, and the main beam coverage of the millimeter wave array antenna can be improved, thereby improving the communication effect of the millimeter wave array antenna.

In order to better understand the foregoing setting manners, reference may be made to FIG. 12 and FIG. 13, and FIG. 12 and FIG. 13 are schematic structural diagrams of a terminal device provided by some embodiments of the present disclosure. The signal reflection wall 4 in FIG. 12 is formed by the metal outer wall of the battery of the terminal device. The distance between the signal reflection wall 4 and the fourth side 14 is W3, and W3> 0. The signal reflection wall 4 in FIG. 13 is formed by the metal wall of the battery compartment of the terminal device. The distance between the signal reflection wall 4 and the fourth side 14 is W4, and W4> 0.

Optionally, the signal reflecting wall 4 is a concave reflective curved surface; or, the signal reflecting wall 4 is a convex reflective curved surface.

In this embodiment, the signal reflection wall 4 is a concave reflection curved surface; or the signal reflection wall 4 is a convex reflection curved surface, which can optimize the gain pattern of the millimeter wave array antenna.

A terminal device according to some embodiments of the present disclosure includes a metal frame 1, and one side of the metal frame 1 is provided with at least two slits 15. The slits 15 are “I” -shaped slits. The font-shaped slot includes a first sub-slot 151 and a second sub-slot 152 that are parallel to each other, and a third sub-slot 153 that is perpendicular to the first sub-slot 151. The inner side wall of the metal frame 1 is provided with at least two antennas. Feed point 2, different antenna feed points 2 of the at least two antenna feed points 2 are located on the sides of the third sub-slot 153 in different slots 15; the metal frame 1 and the floor in the terminal device 3 电连接。 Electrical connection. In this way, the metal frame 1 provided with the gap 15 is equivalent to a millimeter wave array antenna of the terminal device, and the metal frame 1 is also a radiator of the communication antenna, thereby saving the space for containing the millimeter wave antenna and reducing the volume of the terminal device. , And can better support the design of metal appearance, and compatible design with the appearance of metal as other antenna solutions, improve the overall competitiveness of 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 terminal device includes a metal frame, at least two gaps are opened on one side of the metal frame, the gap is an I-shaped gap, and the I-shaped gap includes mutually parallel A first sub-slot and a second sub-slot, and a third sub-slot perpendicular to the first sub-slot;

At least two antenna feeding points are disposed on an inner side wall of the metal frame, and different antenna feeding points of the at least two antenna feeding points are located at sides of third sub-slots of different slots;

The metal frame is electrically connected to a floor in the terminal device.
The terminal device according to claim 1, wherein a length of the first sub slit is different from a length of the second sub slit.
The terminal device according to claim 2, wherein a length of the first sub-slot is shorter than a length of the second sub-slot, and the length of the first sub-slot is according to a half wavelength corresponding to a center frequency of a first working frequency band of the antenna It is determined that the length of the second sub-slot is determined according to a half wavelength corresponding to the center frequency of the second working frequency band of the antenna.
The terminal device according to claim 1, wherein an arrangement manner of any two adjacent slots of the at least two slots is the same;

Alternatively, the arrangement manner of any two adjacent slits among the at least two slits is different.
The terminal device according to claim 4, wherein each slit is disposed obliquely with respect to a metal frame where the slit is located, and the inclination angle is the same.
The terminal device according to claim 1, wherein the antenna feeding point is located at a center position of an edge of the third sub-slot.
The terminal device according to claim 1, wherein the at least two slits are arranged along a length direction of the metal frame.
The terminal device according to claim 1, wherein a signal reflection wall is further provided in the terminal device, and there is a gap between the signal reflection wall and the at least two gaps, and the signal reflection wall and the floor Electrical connection.
The terminal device according to claim 8, wherein an upper edge of the signal reflection wall is not lower than an upper edge of the slot, and a lower edge of the signal reflection wall is not higher than a lower edge of the slot.
The terminal device according to claim 8, wherein the signal reflection wall is formed by a metal outer wall of a battery of the terminal device; or the signal reflection wall is formed by a metal wall of a battery compartment of the terminal device, wherein The battery compartment is a structure for accommodating a battery of the terminal device.
The terminal device according to claim 8, wherein the signal reflection wall is a concave reflection curved surface; or the signal reflection wall is a convex reflection curved surface.
The terminal device according to claim 1, wherein:

The metal frame is a radiator of the communication antenna.
A terminal device includes a radiator of a communication antenna, and the radiator is provided with a millimeter wave array antenna.