CN108987906B

CN108987906B - Terminal equipment

Info

Publication number: CN108987906B
Application number: CN201810819678.0A
Authority: CN
Inventors: 王义金; 黄奂衢; 简宪静
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2021-01-08
Anticipated expiration: 2038-07-24
Also published as: CN108987906A; WO2020020056A1

Abstract

The invention provides a terminal device. The terminal device includes a metal frame. At least two slits are opened on one side of the metal frame. The slits are "I"-shaped slits. and the second sub-slot, and a third sub-slot perpendicular to the first sub-slot; at least two antenna feeding points are arranged on the inner side wall of the metal frame, and different antenna feeding points in the at least two antenna feeding points are located at different The side of the third sub-slot of the slot; the metal frame is electrically connected to the floor in the terminal device. In this way, the metal frame provided with the slot is equivalent to the millimeter-wave array antenna of the terminal device, and the metal frame is also the radiator of the communication antenna, thus saving the accommodation space of the millimeter-wave antenna, reducing the volume of the terminal device, and making the It can better support the design of metal appearance, and can be compatible with other antenna solutions with metal appearance, so as to improve the overall competitiveness of terminal equipment.

Description

Terminal equipment

Technical Field

The invention relates to the technical field of communication, in particular to a terminal device.

Background

With the rapid development of communication technology, multi-antenna communication has become the mainstream and future development trend of terminal devices, and in the process, millimeter wave antennas are gradually introduced to terminal devices. In the prior art, the millimeter wave antenna is generally in the form of an independent antenna module, and therefore an accommodating space needs to be provided for the independent antenna module in the terminal device. Thus, the volume size of the whole terminal device is made larger, resulting in a lower overall competitiveness of the terminal device.

Disclosure of Invention

The embodiment of the invention provides terminal equipment, which aims to solve the problem that the volume size of the whole terminal equipment is larger because a containing space needs to be arranged for a millimeter wave antenna in the terminal equipment.

In order to solve the technical problem, the invention is realized as follows:

the embodiment of the invention provides terminal equipment, which comprises a metal frame, wherein at least two gaps are formed in one side of the metal frame, the gaps are I-shaped gaps, and the I-shaped gaps comprise a first sub gap, a second sub gap and a third sub gap, wherein the first sub gap and the second sub gap are parallel to each other, and the third sub gap is perpendicular to the first sub gap; at least two antenna feed points are arranged on the inner side wall of the metal frame, and different antenna feed points in the at least two antenna feed points are positioned on the side edge of a third sub-slot of different slots; the metal frame is electrically connected with a floor in the terminal equipment.

The terminal equipment comprises a metal frame, wherein at least two gaps are formed in one side of the metal frame, the gaps are I-shaped gaps, and the I-shaped gaps comprise a first sub gap, a second sub gap and a third sub gap, wherein the first sub gap and the second sub gap are parallel to each other, and the third sub gap is perpendicular to the first sub gap; at least two antenna feed points are arranged on the inner side wall of the metal frame, and different antenna feed points in the at least two antenna feed points are positioned on the side edge of a third sub-slot of different slots; the metal frame is electrically connected with a floor in the terminal equipment. Therefore, the metal frame with the gap is equivalent to a millimeter wave array antenna of the terminal device, and the metal frame is also a radiator of the communication antenna, so that the accommodating space of the millimeter wave antenna is saved, the size of the terminal device can be reduced, the design of metal appearance can be better supported, the design can be compatible with the scheme of using the metal in the appearance as other antennas, and the overall competitiveness of the terminal device is improved.

Drawings

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

Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a slot provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a side edge of a metal frame according to an embodiment of the present invention;

fig. 4 is a second schematic structural view of one side of the metal frame according to the embodiment of the present invention;

fig. 5 is a third schematic structural view of a side edge of the metal frame according to the embodiment of the present invention;

fig. 6 is a fourth schematic structural view of one side of the metal frame according to the embodiment of the present invention;

fig. 7 is a fifth schematic view of a side of a metal frame according to an embodiment of the present invention;

fig. 8 is a schematic diagram of the arrangement position of the antenna feed point provided by the embodiment of the invention;

fig. 9 is a parameter diagram of a slot array antenna according to an embodiment of the present invention;

fig. 10 is a sixth schematic view of a side of a metal frame according to an embodiment of the present invention;

fig. 11 is a schematic diagram illustrating a relative position between a signal reflection wall and a side of a metal bezel according to an embodiment of the present invention;

fig. 12 is a second schematic structural diagram of a terminal device according to the second embodiment of the present invention;

fig. 13 is a third schematic structural diagram of a terminal device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present invention, and as shown in fig. 1, the terminal device includes a metal frame 1, where at least two gaps 15 are formed on one side of the metal frame 1, where each gap 15 is an "i" -shaped gap, and the "i" -shaped gap includes a first sub-gap 151 and a second sub-gap 152 that are parallel to each other, and a third sub-gap 153 that is perpendicular to the first sub-gap 151; at least two antenna feed points 2 are arranged on the inner side wall of the metal frame 1, and different antenna feed points 2 of the at least two antenna feed points 2 are positioned on the side edge of the third sub-slot 153 of different slots 15; the metal frame 1 is electrically connected with a floor 3 in the terminal equipment.

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, and the metal frame 1 may be an end-to-end frame or an unconnected frame. The at least two gaps 15 may be formed on one side of the metal frame 1, or at least two gaps 15 may be formed on two opposite sides of the metal frame 1. The inside of the gap 15 may be air, or may be filled with a non-conductive material, or the like.

In this embodiment, 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 that are parallel to each other, and a third sub slit 153 perpendicular to the first sub slit 151. For better understanding of the "i" shaped slot, refer to fig. 2, and fig. 2 is a schematic structural diagram of the slot provided in the embodiment of the present invention. As shown in fig. 2, the 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 sub slit 153 perpendicular to the first sub slit 151. One I-shaped slot is equivalent to one antenna unit in the millimeter wave array antenna, so that the millimeter wave array antenna can be formed by a plurality of I-shaped slots.

In this embodiment, 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 at the side of the third sub-slot 153 of different slots 15, so that it can be ensured that the antenna feeding points 2 exist in at least two slots 15 on one side of the metal frame 1, and thus the at least two slots 15 can form a millimeter wave array antenna. The antenna feed point 2 of the millimeter wave array antenna is located on the third sub-slot 153, so that a millimeter wave signal can be led to the antenna feed point 2 of the millimeter wave array antenna and radiated through the metal frame 1. Besides, the metal frame 1 can also receive millimeter wave signals.

In this embodiment, at least two slots 15 are formed in one side of the metal frame 1, so that the at least two slots 15 are equivalent to form a millimeter wave array antenna for radiating millimeter wave signals. When at least two slots 15 are opened on the third side 13, the communication antenna may be as shown by the dotted line in fig. 1, and the communication antenna is composed of the third side 13, a part of the second side 12, and a part of the fourth side 14. In addition, the millimeter wave array antenna composed of at least two slots 15 may have a small slot on the inner side of the radiator of the communication antenna, so as not to affect the electrical parameters of the communication antenna. The floor 3 may be a circuit board or a metal middle shell, etc. The metal frame 1 is electrically connected with a floor 3 in the terminal device, so that the metal frame 1 can be grounded.

Like this, at least two gaps 15 have been seted up through the one side at terminal equipment's frame, form millimeter wave array antenna in other words to saved millimeter wave array antenna's accommodation space, do not occupy the antenna space of other antennas, can reduce terminal equipment's volume, improved terminal equipment holistic competitiveness. The structure of the terminal equipment is fully utilized as the antenna, so that the communication effect is improved, and the metal texture of the terminal equipment is not influenced. And can be sheltered from by the metal table at the terminal equipment back, perhaps when the user holds terminal equipment, avoid millimeter wave antenna performance to descend by a wide margin, make the user have better experience.

Moreover, the millimeter wave array antenna is integrated into the existing communication antenna, such as 2G, 3G, 4G or sub 6G, without affecting the communication quality of the communication antenna and the function of the terminal device. Meanwhile, the millimeter wave array antenna can obtain better broadband width, and can cover multiple frequency bands of 5G millimeter waves due to the existence of the I-shaped gap, so that the antenna design of a full-face screen is facilitated. And through the metal frame design based on terminal equipment, the metal texture of the terminal equipment is not influenced, and the wireless experience of users in transnational roaming and even global roaming can be improved.

The current mainstream millimeter wave antenna design is difficult to show better antenna performance under the design of metal appearance, that is, the design of metal appearance is difficult to support, and the product competitiveness is reduced. The design mode of the embodiment can better support the design of metal appearance, and can be compatible with the scheme of using appearance metal as other antennas so as to improve the overall competitiveness of products. The problem that the terminal equipment is difficult to support the design of metal appearance is solved while the problem that the size of the whole terminal equipment is large due to the fact that an accommodating space needs to be arranged for a millimeter wave antenna in the terminal equipment is solved.

In the embodiment of the present invention, the terminal Device may be a Mobile phone, a Tablet personal Computer (Tablet personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.

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

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

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

In this embodiment, the length of the first sub-slot 151 is smaller than the length of the second sub-slot 152, the length of the first sub-slot 151 is approximately a half wavelength of a center frequency of a first frequency band of antenna operation, and the length of the second sub-slot 152 is approximately a half wavelength of a center frequency of a second frequency band of antenna operation, so that millimeter wave signals of different frequency bands can be better matched for operation.

Optionally, any two adjacent slits 15 in the at least two slits 15 are arranged in the same manner;

alternatively, any two adjacent slits 15 of the at least two slits 15 are arranged in different manners.

In this embodiment, in order to better understand the arrangement of the same arrangement manner, refer to fig. 3, where fig. 3 is a schematic structural diagram of one side of the metal frame according to an embodiment of the present invention. As shown in fig. 3, at least four slits 15 are formed in the third side 13, and any two adjacent slits 15 are arranged in the same manner.

In this embodiment, in order to better understand the different arrangements of the above arrangement modes, refer to fig. 4 to 6, and fig. 4 to 6 are schematic structural diagrams of one side edge of the metal frame provided in the embodiment of the present invention. In fig. 4 and 5, two adjacent slots 15 are disposed at 90 degrees from vertical, which can improve the horizontal polarization and vertical polarization components of the millimeter wave array antenna, so as to improve the isolation between the wireless connection capability of the millimeter wave array antenna and the antenna unit (slot 15), and further improve the beam coverage of the millimeter wave array antenna.

In fig. 6, since the length of the first sub slot 151 is smaller than that of the second sub slot 152, and the adjacent slots 15 are arranged as shown in fig. 6, the interval between the slots 15 can be shortened and the isolation between the antenna units (the slots 15) can be improved, so that the overall occupied space of the millimeter wave array antenna is reduced and the electrical performance is better.

Optionally, each slit 15 is obliquely arranged relative to the metal frame 1 where the slit 15 is located, and the oblique angles are the same.

In this embodiment, in order to better understand the above arrangement mode, refer to fig. 7, and fig. 7 is a schematic structural diagram of a side edge of the metal frame according to an embodiment of the present invention. As can be seen in fig. 7, there are at least four inclined slits 15 on the third side 13. The angle between the third sub-slit of each slit 15 and the horizontal plane may be 45 degrees when the terminal device is laid flat on a table top. Of course, other inclination angles may be provided for the slit 15, and the present embodiment is not limited thereto.

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 occupied space of the millimeter wave array antenna is reduced and the electrical performance is better. The overall occupied space of the millimeter wave array antenna is reduced, the isolation between the adjacent gaps 15 is improved, and the scanning coverage range of the array antenna is further improved.

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

In this embodiment, in order to better understand the above-mentioned setting manner, refer to fig. 8, where fig. 8 is a schematic diagram of a setting position of an antenna feeding point according to an embodiment of the present invention. As shown in fig. 8, at least four slots 15 are formed on the third side 13, each slot is provided with one 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 the millimeter wave array antenna can have better performance.

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

In the present embodiment, the at least two slits 15 may form a slit group, and the slit group includes at least two slits 15. Also, at least two slot groups, such as a first slot group and a second slot group, may be present on the metal bezel. The first and second slot families each comprise at least two slots, and the first slot family may be located at the second side 12 and the second slot family may be located at the fourth side 14. Thus, by arranging slot groups on different sides, the beam coverage of the millimeter wave array antenna can be further improved.

Referring to fig. 9, fig. 9 is a parameter diagram of a slot array antenna according to an embodiment of the present invention.

The return loss of the plurality of slots 15 is shown in fig. 9. Each slot can cover 24-44GHz bandwidth, namely a plurality of 5G millimeter wave frequency bands. The coupling of the feed signal can excite the first sub slot 151 and the second sub slot 152 to form the first resonance M and the second resonance N of the millimeter wave array antenna.

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

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

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

In this embodiment, the upper edge of the signal reflecting wall 4 is not lower than the upper edge of the slot 15, and the lower edge of the signal reflecting wall 4 is not higher than the lower edge of the slot 15, so that the signal reflecting wall 4 can well cover the slots 15, and better reflect signals.

For a better understanding of the above arrangement, reference may be made to fig. 10 and 11. Fig. 10 is a schematic structural diagram of a side edge of a metal bezel according to an embodiment of the present invention, and fig. 11 is a schematic structural diagram of a relative position between a signal reflection wall and the side edge of the metal bezel according to the embodiment of the present invention.

As can be seen in fig. 10, at least four slits 15 are present on the fourth side 14 of the metal bezel 1, and the first sub-slit 151 of each slit 15 has a length L1, the second sub-slit 152 has a length L2, and the third sub-slit 153 has a length L3. L1 is approximately half the wavelength corresponding to the center frequency of the first frequency band in which the millimeter wave antenna operates, L2 is approximately half the wavelength corresponding to the center frequency of the second frequency band in which the millimeter wave antenna operates, the width of the sub slot is not limited, and 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 between the two adjacent slots 15 and the maximum scanning angle of the millimeter wave array antenna. The first sub slit 151, the second sub slit 152, and the third sub slit 153 of the plurality of slits 15 constitute 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 group formed by the plurality of slits 15 is L4. In FIG. 11, the distance between the upper edge and the lower edge of the signal reflecting wall 4 is H2, the length of the signal reflecting wall 4 is L5, the signal reflecting wall 4 and the gap family are on the same side of the floor 3, and H2 is equal to or greater than H1. Thus, the upper edge of the signal reflecting wall 4 is not lower than the upper edge of the slit 15, and the lower edge of the signal reflecting wall 4 is not higher than the lower edge of the slit 15. Thus, the gaps 15 can be covered well, and better signal reflection is facilitated. Of course, for better covering of these slots 15, L5 ≧ L4 may be preferably provided so that the slot family may be made not to exceed the range of the length of the signal reflecting wall 4.

Optionally, the signal reflecting wall 4 is formed by a metal outer wall of a battery of the terminal device; alternatively, the signal reflecting wall 4 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.

In the present embodiment, the signal reflecting wall 4 is formed by a metal outer wall of a battery of the terminal device; or, the signal reflecting wall 4 is formed by a metal wall of a battery compartment of the terminal device, so that additional materials do not need to be added, and the cost of the terminal device is saved. And the gain directional diagram of the millimeter wave array antenna can be optimized, the main beam coverage of the millimeter wave array antenna is improved, and the communication effect of the millimeter wave array antenna is further improved.

For better understanding of the above arrangement, reference may be made to fig. 12 and fig. 13, where fig. 12 and fig. 13 are schematic structural diagrams of the terminal device provided in the embodiment of the present invention. The signal reflecting wall 4 in fig. 12 is formed as a metal outer wall of the battery of the terminal device, and the distance between the signal reflecting wall 4 and the fourth side 14 is W3, W3> 0. The signal reflecting wall 4 in fig. 13 is formed by a metal wall of a battery compartment of the terminal device, and the distance between the signal reflecting wall 4 and the fourth side 14 is W4, W4> 0.

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

In this embodiment, the signal reflecting wall 4 is a concave reflecting curved surface; or, the signal reflecting wall 4 is a convex reflecting curved surface, so that the gain pattern of the millimeter wave array antenna can be optimized.

The terminal device comprises a metal frame 1, wherein at least two gaps 15 are formed in one side of the metal frame 1, the gaps 15 are I-shaped gaps, and each I-shaped gap comprises a first sub gap 151 and a second sub gap 152 which are parallel to each other, and a third sub gap 153 which is perpendicular to the first sub gap 151; at least two antenna feed points 2 are arranged on the inner side wall of the metal frame 1, and different antenna feed points 2 of the at least two antenna feed points 2 are positioned on the side edge of the third sub-slot 153 of different slots 15; the metal frame 1 is electrically connected with a floor 3 in the terminal equipment. Therefore, the metal frame 1 provided with the slot 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, so that the accommodating space of the millimeter wave antenna is saved, the size of the terminal device can be reduced, the design of metal appearance can be better supported, the design can be compatible with the scheme of using the metal in appearance as other antennas, and the overall competitiveness of the terminal device is improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A terminal device, characterized in that the terminal device comprises a metal frame, and at least two slits are opened on one side of the metal frame, and the slits are "I"-shaped slits, and the "I" character The shaped slit includes 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 sidewall of the metal frame is provided with at least two antenna feeding points, and different antenna feeding points in the at least two antenna feeding points are located on the sides of the third sub-slots of different slots;

The metal frame is electrically connected to the floor in the terminal device.

2 . The terminal device according to claim 1 , wherein the lengths of the first sub-slot and the second sub-slot are different. 3 .

3 . The terminal device according to claim 2 , wherein the length of the first sub-slot is smaller than the length of the second sub-slot, and the length of the first sub-slot is based on the center frequency of the first working frequency band of the antenna. 4 . The corresponding half wavelength is determined, and the length of the second sub-slot is determined according to the half wavelength corresponding to the center frequency of the second working frequency band of the antenna.

4. The terminal device according to claim 1, wherein any two adjacent slits in the at least two slits are arranged in the same manner;

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

5 . The terminal device according to claim 4 , wherein each slot is inclined relative to the metal frame where the slot is located, and the inclination angle is the same. 6 .

6 . The terminal device according to claim 1 , wherein the antenna feeding point is located at the center of the edge of the third sub-slot. 7 .

7 . The terminal device according to claim 1 , wherein the at least two slits are arranged along a length direction of the metal frame. 8 .

8 . 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 slits, and the signal reflection wall is electrically connected to the floor.

9 . The terminal device according to claim 8 , wherein the upper edge of the signal reflection wall is not lower than the upper edge of the slot, and the lower edge of the signal reflection wall is not higher than the lower edge of the slot. 10 . edge.

10. 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 outer wall of a battery compartment of the terminal device A wall is formed, wherein the battery compartment is a structure for accommodating the battery of the terminal device.

11 . The terminal device according to claim 8 , wherein the signal reflecting wall is a concave reflecting curved surface; or the signal reflecting wall is a convex reflecting curved surface. 12 .

12. The terminal device according to claim 1, wherein,

The metal frame is the radiator of the communication antenna.

13. The terminal device according to claim 12, wherein,

The radiator is provided with a millimeter-wave array antenna formed by the at least two slots.