WO2020119367A1

WO2020119367A1 - Antenna and terminal device

Info

Publication number: WO2020119367A1
Application number: PCT/CN2019/117445
Authority: WO
Inventors: 简宪静; 王义金
Original assignee: 维沃移动通信有限公司
Priority date: 2018-12-14
Filing date: 2019-11-12
Publication date: 2020-06-18
Also published as: CN109546326A

Abstract

Provided in the present disclosure are an antenna and a terminal device, the antenna comprising a first mounting pad, a second mounting pad, a ground plate, and a feed line; the second mounting pad is arranged between the first mounting pad and the ground plate, no two of the first mounting pad, the second mounting pad, and the ground plate being in contact; the feed line is connected to a feed point of the first mounting pad; a first through-hole for the feed line to pass through is disposed on the second mounting pad, the feed line not being in contact with the second mounting pad; a second through-hole for the feed line to pass through is disposed on the ground plate, the feed line not being in contact with the ground plate; the first mounting pad and the second mounting pad are coupled; the distance from the feed point to a first side edge of the first mounting pad is less than the distance to the other side edges of the first mounting pad, the first side edge being one side edge of the first mounting pad.

Description

Antenna and terminal equipment

Cross-reference of related applications

This application claims the priority of Chinese Patent Application No. 201811533697.3 filed in China on December 14, 2018, the entire contents of which are hereby incorporated by reference.

Technical field

The present disclosure relates to the field of communication technology, and in particular, to an antenna and terminal equipment.

Background technique

With the rapid development of communication technology, multi-antenna communication has become the mainstream of terminal equipment and the future development trend, and in this process, millimeter wave antennas are gradually introduced into terminal equipment. Patch antennas are often used as millimeter wave band antennas or millimeter wave array antenna units due to their low profile, easy conformation, and high gain. However, the bandwidth of the millimeter wave patch antenna in the related art is narrow, and it is difficult to meet the bandwidth requirements of the millimeter wave band.

Summary of the invention

Embodiments of the present disclosure provide an antenna and a terminal device to solve the problem of narrow bandwidth of the millimeter wave patch antenna of the terminal device.

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

In a first aspect, an embodiment of the present disclosure provides an antenna including a first patch, a second patch, a ground plate, and a feeder; the second patch is disposed between the first patch and the ground plate Between the first patch, the second patch, and the ground plate, there is no contact between the two; the feeder is connected to the feeding point of the first patch; the second patch There is a first through hole for the feed line to pass through, the feed line does not contact the second patch; a second through hole for the feed line to pass through is provided on the ground plate, and the feed line does not Contact the ground plate; the first patch and the second patch are coupled;

The distance between the feeding point and the first side of the first patch is less than the distance from other sides of the first patch, the first side is one of the first patches Side.

In a second aspect, an embodiment of the present disclosure also provides a terminal device, including the above antenna.

An antenna according to an embodiment of the present disclosure is characterized in that it includes a first patch, a second patch, a ground plate, and a feeder; the second patch is disposed between the first patch and the ground plate , The first patch, the second patch and the ground plate are not in contact with each other; the feeder is connected to the feeding point of the first patch; on the second patch A first through hole is provided for the feed line to pass through, the feed line does not contact the second patch; a second through hole for the feed line to pass through is formed on the ground plate, and the feed line does not contact The ground plate; the first patch and the second patch are coupled; the distance between the feed point and the first side of the first patch is smaller than that of the first patch For the distance of the side, the first side is a side of the first patch. In this way, since the first patch and the second patch exist, the antenna can cover multiple millimeter wave bands.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required in the description of the embodiments of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without paying any creative labor, other drawings can also be obtained based on these drawings.

FIG. 1 is one of structural diagrams of an antenna provided by an embodiment of the present disclosure;

2 is a partial structural diagram of an antenna provided by an embodiment of the present disclosure;

3 is a second structural diagram of an antenna provided by an embodiment of the present disclosure;

4 is a first schematic diagram of simulation results provided by an embodiment of the present disclosure;

5 is a third structural diagram of an antenna provided by an embodiment of the present disclosure;

6 is a fourth structural diagram of an antenna provided by an embodiment of the present disclosure;

7 is a fifth structural diagram of an antenna provided by an embodiment of the present disclosure;

8 is a second schematic diagram of simulation results provided by an embodiment of the present disclosure;

9 is a sixth structural diagram of an antenna provided by an embodiment of the present disclosure;

FIG. 10 is a third schematic diagram of simulation results provided by an embodiment of the present disclosure.

detailed description

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

Referring to FIG. 1, FIG. 1 is a structural diagram of an antenna provided by an embodiment of the present disclosure. As shown in FIG. 1, it includes a first patch 1, a second patch 2, a ground plate 3, and a feeder 4; the second patch 2 is provided between the first patch 1 and the ground plate 3, and there is no contact between the first patch 1, the second patch 2 and the ground plate 3; The feeder 4 is connected to the feeding point 5 of the first patch 1; the second patch 2 is provided with a first through hole 6 through which the feeder passes, and the feeder 4 does not contact the second Patch 2; the ground plate 3 is provided with a second through hole 7 for the feed line 4 to pass through, the feed line 4 does not contact the ground plate 3; the first patch 1 and the second Patch 2 is coupled; the distance between the feed point 5 and the first side of the first patch 1 is less than the distance from the other sides of the first patch 1, the first side is One side of the first patch 1.

In this embodiment, the antenna may be a millimeter wave antenna, the feeder 4 is connected to the feed 8, and the gap between the second patch 2 and the first patch 1 may be filled with a non-conductive medium 9. Both the first patch 1 and the second patch 2 are metal sheets, and the shape of the metal sheet may be square or some other shape. The first patch 1 is provided with a feeding point 5, and the position of the feeding point 5 can be adjusted to cause resonance in a corresponding frequency band. The feed source 8 may be electrically connected to the feed point 5 through the feed line 4, and the feed line 4 passes through the second through hole 7 and the first through hole 6. It should be noted that there is no electrical connection between the feed source 8 and the second patch 2. The first patch 1 and the second patch 2 are coupled so that the antenna generates double resonance.

In this embodiment, the dielectric constant of the non-conductive medium 9 is εr, and the non-conductive medium 9 may be a transparent or non-transparent material. The total thickness of the antenna is H, the thickness between the first patch 1 and the second patch 2 is H1, and the thickness between the second patch 2 and the ground plate 3 is H2. H1 is generally 0.2mm to 0.3mm, H2 is generally 0.4mm to 0.5mm, so H can be 0.6mm to 0.8mm.

In order to better understand the above structure, please refer to FIG. 2 and FIG. 3 again. FIG. 2 is a partial structural diagram of an antenna provided by an embodiment of the present disclosure, and is a partial structural diagram at a dotted circle around the first through hole 6 in FIG. 1. FIG. 3 is a structural diagram of an antenna provided by an embodiment of the present disclosure.

First, as shown in FIG. 2, the feeder 4 passes through the first through hole 6 on the second patch 2. Referring again to FIG. 3, the first patch 1 in FIG. 3 is provided with a feed point 5, and the feed source 8 may be electrically connected to the feed point 5 through the feed line 4. And in FIG. 3, the side above the first patch 1 is the first side, and the distance between the feeding point 5 and the first side is smaller than the distance between the feeding point 5 and the other side of the first patch 1 .

Please refer to FIG. 4 again, which is a schematic diagram of a simulation result provided by an embodiment of the present disclosure. As shown in Fig. 4, a resonance is generated near 28 GHz and 38 GHz, respectively, which satisfies the dual frequency requirements of the millimeter wave antenna. Moreover, the present disclosure adopts a stacked structure, which effectively reduces the volume of the millimeter wave antenna, and is suitable for further forming a millimeter wave antenna array.

Optionally, the shapes of the first patch 1, the second patch 2, and the ground plate 3 are all square.

In this embodiment, the shapes of the first patch 1, the second patch 2, and the ground plate 3 are all square, so that the millimeter wave antenna can have better performance. Of course, in addition to the square shape, there may be some other shapes, which is not limited in this embodiment.

Optionally, the centers of the first patch 1, the second patch 2, and the ground plate 3 are on the same straight line.

In this embodiment, the centers of the first patch 1, the second patch 2, and the ground plate 3 are on the same straight line, which can make the millimeter wave antenna have better performance.

Optionally, the area of the first patch 1 is smaller than the area of the second patch 2, and the area of the second patch 2 is smaller than the area of the ground plate 3.

In this embodiment, the area of the first patch 1 is smaller than the area of the second patch 2, and the area of the second patch 2 is smaller than the area of the ground plate 3, which can make the millimeter wave antenna Good performance.

Optionally, the number of the first through hole 6, the second through hole 7, the feeding point 5 and the feed line 4 are all one, and one feed line 4 passes through one second through hole 7 and One first through hole 6 is connected to one feeding point 5.

In this embodiment, the number of the first through hole 6, the second through hole 7, the feeding point 5 and the feed line 4 are all one, and one feed line 4 passes through one second through hole 7 A first through hole 6 is connected to a feeding point 5.

Optionally, the number of the first through hole 6, the second through hole 7, the feeding point 5 and the feed line 4 are two, and one feed line 4 passes through a second through hole 7 and One first through hole 6 is connected to one feeding point 5.

For a better understanding of the above setting method, reference may be made to FIGS. 5 and 6, which are structural diagrams of the antenna provided by the embodiment of the present disclosure.

First of all, referring to FIG. 5, the number of the first through hole 6, the second through hole 7, the feed point 5 and the feed line 4 are two, and one feed line 4 passes through a second through hole 7 and a first through hole 6 are connected to a feeding point 5.

Referring again to FIG. 6, it can be seen that there are two feeding points 5 on the first patch 1. The position of the upper feeding point 5 relative to the upper side of the first patch 1 may be the same as the position of the right feeding point 5 relative to the right side of the first patch 1. In addition, the two feed points 5 can be close to their respective sides, and located in the middle of the side, so that the two feeds respectively excite two orthogonal modes, which can meet the design of dual polarization Claim.

Optionally, the two second through-holes 7 and the two first through-holes 6 are arranged in one-to-one pairs; the two first through-holes 6 and the two feeding points 5 are arranged in one-to-one pairs.

In this embodiment, the two second through-holes 7 and the two first through-holes 6 are arranged in one-to-one pairs; the two first through-holes 6 and the two feeding points 5 are arranged in one-to-one pairs, so that The feed 8 is electrically connected to the first patch 1 through a shorter path, so that the millimeter wave antenna can have better performance.

Optionally, a first straight line determined by one of the two feeding points 5 and the midpoint of the first patch 1 passes through the midpoint of the first side of the first patch 1; A second straight line determined by another feeding point 5 and the midpoint of the first patch 1 passes through the midpoint of the second side of the first patch 1; the first straight line and the second The straight line is perpendicular, and the second side is a side of the first patch 1, and the first side and the second side are different.

In this embodiment, a first straight line defined by one of the two feeding points 5 and the midpoint of the first patch 1 passes through the midpoint of the first side of the first patch 1 ; Another feed point 5 and a second straight line determined by the midpoint of the first patch 1 passes through the midpoint of the second side of the first patch 1; the first straight line and the first The two straight lines are perpendicular, the second side is a side of the first patch 1, and the first side is different from the second side. In this way, by adopting a symmetrical structure such as a square and feeding at different positions, a dual-polarized millimeter wave antenna can be designed.

Optionally, a slit is provided in the first patch 1 or the second patch 2.

In this embodiment, the first patch 1 or the second patch 2 is provided with a slit, which can make the millimeter wave antenna resonate in more frequency bands, thereby covering the fifth generation mobile communication technology (5th generation (wireless) systems, 5G) mmWave multiple frequency bands, and without additional increase in the size of the mmWave antenna, effectively expanding the bandwidth of the mmWave antenna has important engineering significance.

Optionally, the slit 10 is in a concave shape, and the feeding point 5 is located at the notch of the concave slit 10.

In this embodiment, the above-mentioned concave-shaped slit can be understood in this way. For example, the concave-shaped slot includes three sub-slots connected in sequence, such as a first sub-slot, a second sub-slot, and a third sub-slot. The first sub slit is perpendicular to the second sub slit, the second sub slit is perpendicular to the third sub slit, the third sub slit is parallel to the first sub slit, the first sub slit, the second sub slit and the third sub slit together constitute the above Concave gap.

In this embodiment, in order to better understand the above setting mode, please refer to FIG. 7 to FIG. 10, FIG. 7 and FIG. 9 are structural diagrams of the antenna provided by an embodiment of the present disclosure, and FIG. 8 and FIG. 10 are implemented by the present disclosure. Example provides a schematic diagram of the simulation results.

First, as shown in FIG. 7, the first patch 1 is provided with a recessed slot 10, and the feed point 5 is located at the notch of the recessed slot 10, so that the millimeter wave antenna can Three resonances are generated. At this time, referring to FIG. 8, a resonance is generated near 26GHz, 29GHz, and 38GHz, which can cover multiple frequency bands of 5G millimeter wave, and without additional increase in the volume of the millimeter wave antenna, the bandwidth of the millimeter wave antenna is effectively expanded. It has important engineering significance.

Please refer to FIG. 9 again, the second patch 2 is provided with a concave slot 10, and the feeding point 5 is located at the notch of the concave slot 10, so that the millimeter wave antenna can produce three Resonance. At this time, referring to FIG. 10, a resonance is generated near 28 GHz, 38 GHz, and 42 GHz, which can cover multiple frequency bands of 5G millimeter wave, and without additional increase in the volume of the millimeter wave antenna, effectively expand the bandwidth of the millimeter wave antenna. It has important engineering significance.

Optionally, the feeding point 5 is located on the axis of symmetry of the concave slit 10.

In this embodiment, the feed point 5 is located on the symmetry axis of the concave slot 10, and is closer to the side where the notch faces, so that the input impedance of the antenna is closer to 50 ohms, so that the millimeter wave The antenna has better performance.

Optionally, the gap between the first patch 1, the second patch 2 and the ground plate 3 is filled with a non-conductive medium 9.

In this embodiment, the gap between the first patch 1, the second patch 2 and the ground plate 3 is filled with a non-conductive medium 9, which can make the antenna have better structural strength.

Optionally, the antenna is a millimeter wave antenna.

In this embodiment, the antenna is a millimeter wave antenna, and the millimeter wave antenna can cover multiple frequency bands of 5G millimeter waves.

An antenna according to an embodiment of the present disclosure includes a first patch 1, a second patch 2, a ground plate 3, and a feeder 4; the second patch 2 is disposed on the first patch 1 and the ground plate Between 3, the first patch 1, the second patch 2 and the ground plate 3 are not in contact with each other; the feeder 4 is connected to the feeding point of the first patch 1 5; the second patch 2 is provided with a first through hole 6 for the feeder to pass through, the feeder 4 does not contact the second patch 2; the ground plate 3 is provided with the The second through hole 7 through which the feeder 4 passes, the feeder 4 does not contact the ground plate 3; the first patch 1 and the second patch 2 are coupled; the feed point 5 is connected to the first The distance of the first side of a patch 1 is smaller than the distance from the other sides of the first patch 1, and the first side is one side of the first patch 1. In this way, since the first patch 1 and the second patch 2 exist, the antenna can cover multiple millimeter wave frequency bands.

An embodiment of the present disclosure also provides a terminal device, including the above antenna.

In the embodiment of the present disclosure, the terminal device may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (personal digital assistant (PDA) for short), a mobile Internet device (Mobile Internet Device), MID) or Wearable Device (Wearable) and so on.

It should be noted that in this article, the terms "include", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, It also includes other elements that are not explicitly listed, or include elements inherent to such processes, methods, objects, or devices. Without more restrictions, the element defined by the sentence "include one..." 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 drawings, but the present disclosure is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are merely schematic, not limiting, and those of ordinary skill in the art Under the inspiration of the present disclosure, many forms can be made without departing from the purpose of the present disclosure and the scope protected by the claims, all of which fall within the protection of the present disclosure.

Claims

An antenna includes a first patch, a second patch, a ground plate, and a feeder; the second patch is disposed between the first patch and the ground plate, and the first patch, There is no contact between the second patch and the ground plate; the feeder is connected to the feeding point of the first patch; the second patch is provided with a The first through hole, the feeder does not contact the second patch; the ground plate is provided with a second through hole for the feeder to pass through, the feeder does not contact the ground plate; the first The patch is coupled with the second patch;

The distance between the feeding point and the first side of the first patch is less than the distance from other sides of the first patch, the first side is one of the first patches Side.
The antenna according to claim 1, wherein the shapes of the first patch, the second patch, and the ground plate are all square.
The antenna according to claim 1, wherein the centers of the first patch, the second patch, and the ground plate are on the same straight line.
The antenna according to claim 1, wherein the area of the first patch is smaller than the area of the second patch, and the area of the second patch is smaller than the area of the ground plate.
The antenna according to claim 1, wherein the number of the first through hole, the second through hole, the feeding point and the feed line are all one, and one feed line passes through a second through hole And a first through hole connected to a feeding point.
The antenna according to claim 1, wherein the number of the first through hole, the second through hole, the feed point and the feed line are two, and one feed line passes through a second through hole And a first through hole connected to a feeding point.
The antenna according to claim 6, wherein the two second through holes and the two first through holes are arranged in one-to-one confrontation; the two first through holes and the two feeding points are arranged in one-to-one confrontation.
The antenna according to claim 7, wherein a first straight line defined by one of the two feeding points and the midpoint of the first patch passes through the first side of the first patch Midpoint; the second straight line determined by the other feed point and the midpoint of the first patch passes through the midpoint of the second side of the first patch; the first straight line and the second The straight line is perpendicular, the second side is a side of the first patch, and the first side is different from the second side.
The antenna according to any one of claims 1 to 4, wherein a slit is provided in the first patch or the second patch.
The antenna according to claim 9, wherein the slot is in a concave shape, and the feeding point is located where the notch of the concave-shaped slot faces.
The antenna according to claim 10, wherein the feeding point is located on the axis of symmetry of the concave slot.
The antenna according to claim 1, wherein the gap between the first patch, the second patch, and the ground plate is filled with a non-conductive medium.
The antenna according to claim 1, wherein the antenna is a millimeter wave antenna.
A terminal device comprising the antenna according to any one of claims 1 to 13.