CN217881884U - Antenna module and communication equipment - Google Patents
Antenna module and communication equipment Download PDFInfo
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- CN217881884U CN217881884U CN202221262266.XU CN202221262266U CN217881884U CN 217881884 U CN217881884 U CN 217881884U CN 202221262266 U CN202221262266 U CN 202221262266U CN 217881884 U CN217881884 U CN 217881884U
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Abstract
The utility model discloses an antenna module and communication equipment, which comprises a substrate and at least one first antenna unit; the substrate comprises a first flat part, a bending part and a second flat part which are connected in sequence, and the normal directions of the first flat part and the second flat part are different; the first antenna element includes a dielectric resonator disposed on the first flat portion; since the substrate is composed of the first flat portion, the second flat portion, and the bent portion, and the dielectric resonator is provided on the first flat portion, the dielectric resonator has a height higher than that of the patch antenna and has no conductor or surface wave loss, the dielectric resonator antenna has a gain higher than that of the patch antenna, and the antenna performance is enhanced in a direction in which the dielectric resonator is provided.
Description
Technical Field
The utility model relates to an antenna technology field especially relates to an antenna module and communication equipment.
Background
With the rapid development and application of the fifth generation mobile communication, the base station and the terminal device adopt higher frequency electromagnetic wave transmission signals. Because some terminal devices (such as mobile phones) employ directional antennas such as patch antennas (patch antenna) to receive and transmit signals, these terminal devices need to be provided with a plurality of antennas in different directions in order to receive radio frequency signals from multiple directions or to implement multi-directional radiation.
In patent publication No. CN113540776a, a miniaturized antenna module capable of being placed at the edge of the middle frame of an apparatus is disclosed, which can provide signal radiation in two vertical directions, but because the height of part of the apparatus in the vertical plane direction is limited and the space in the horizontal plane direction is large, the antenna module in this scheme cannot effectively utilize the space in the horizontal plane direction of the apparatus.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: an antenna module and a communication device are provided, which can effectively utilize the space in the horizontal plane direction of the device and can improve the gain and bandwidth of the antenna module.
In order to solve the technical problem, the utility model discloses a technical scheme be:
an antenna module comprises a substrate and at least one first antenna unit;
the substrate comprises a first flat part, a bending part and a second flat part which are connected in sequence, and the normal directions of the first flat part and the second flat part are different;
the first antenna element includes a dielectric resonator provided on the first flat portion.
Further, the first antenna element further includes a feed line and a feed metal block, the feed metal block is disposed on the first flat portion and close to the dielectric resonator, and one end of the feed line is connected to the feed metal block.
Further, the dielectric resonator is shaped like a cube, the number of the feeding metal blocks is three, and the three feeding metal blocks are respectively in contact with one side surface of the dielectric resonator close to the second flat portion and two side surfaces adjacent to the one side surface.
Further, the second flat portion includes opposing first and second faces, the second face being closer to the first flat portion than the first face;
the radio frequency chip is arranged on the second surface of the second flat part; the other end of the feeder line is connected with the radio frequency chip.
Further, the antenna also comprises at least one second antenna unit, wherein the second antenna unit comprises a radiating element and a feed structure;
the radiating piece is arranged on the first surface of the second flat part and is connected with the radio frequency chip through the feed structure.
Further, the dielectric constant of the dielectric resonator is 6-140.
Further, the thickness of the first flat portion is the same as that of the bent portion, and the thickness of the first flat portion is smaller than that of the second flat portion.
Furthermore, at least one through groove is arranged on the bending part.
In order to solve the technical problem, the utility model discloses an another technical scheme be:
a communication device comprises the antenna module;
the shell comprises a middle frame;
the dielectric resonator is disposed toward the middle frame.
The beneficial effects of the utility model reside in that: since the substrate is composed of the first flat portion, the second flat portion, and the bent portion, and the dielectric resonator is provided on the first flat portion, the dielectric resonator is higher than the patch antenna in height, and there is no conductor or surface wave loss, so that the gain of the dielectric resonator antenna is higher than that of the patch antenna, and the antenna performance is enhanced in the direction in which the dielectric resonator is provided.
Drawings
Fig. 1 is a schematic structural diagram of an antenna module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a side view of an antenna module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an antenna module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first antenna unit of an antenna module according to an embodiment of the present invention;
FIG. 5 is a graph comparing the performance of a patch antenna with a dielectric resonator alone;
fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating steps of a method for manufacturing an antenna module according to an embodiment of the present invention;
description of reference numerals:
1. a substrate; 11. a first flat portion; 12. a second flat portion; 13. a bending part; 2. a first antenna element; 21. a dielectric resonator; 22. a feeder line; 23. a feed metal block; 24. a feed point; 3. a second antenna element; 31. a radiating member; 4. a radio frequency chip; 5. a housing; 51. a middle frame; 52. a rear cover; 6. an equipment main board; 7. an antenna module; 8. a release film; 14. a through groove; 15. grooving; 16. a bending region; 17. a first flat region; 18. a second flat region.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, an antenna module includes a substrate and at least one first antenna unit;
the substrate comprises a first flat part, a bending part and a second flat part which are connected in sequence, and the normal directions of the first flat part and the second flat part are different;
the first antenna element includes a dielectric resonator provided on the first flat portion.
As can be seen from the above description, the utility model has the advantages that: since the substrate is composed of the first flat portion, the second flat portion, and the bent portion, and the dielectric resonator is provided on the first flat portion, the dielectric resonator is higher than the patch antenna in height, and there is no conductor or surface wave loss, so that the gain of the dielectric resonator antenna is higher than that of the patch antenna, and the antenna performance is enhanced in the direction in which the dielectric resonator is provided.
Further, the first antenna unit further includes a feed line and a feed metal block, the feed metal block is disposed on the first flat portion and close to the dielectric resonator, and one end of the feed line is connected to the feed metal block.
As is apparent from the above description, by disposing the feeding metal block on the first flat portion and close to the dielectric resonator and connecting one end of the feeder line to the feeding metal block, signal transmission of the first antenna element is achieved through the feeding metal block and the feeder line.
Further, the dielectric resonator is cube-shaped, the number of the feeding metal blocks is three, and the three feeding metal blocks are respectively in contact with one side surface of the dielectric resonator close to the second flat portion and two side surfaces adjacent to the one side surface.
As is apparent from the above description, by arranging the dielectric resonator in a cubic shape and connecting the dielectric resonator with three feeding metal blocks, the dielectric resonator can be stably arranged on the first flat portion and feeding of the dielectric resonator can be realized.
Further, the second flat portion includes opposing first and second faces, the second face being closer to the first flat portion than the first face;
the radio frequency chip is arranged on the second surface of the second flat part; the other end of the feeder line is connected with the radio frequency chip.
As can be seen from the above description, by disposing the rf chip on the second surface of the second flat portion, when the antenna module is connected to the device motherboard, the second flat portion can be disposed on the top of the device motherboard, that is, the device motherboard is disposed inside the included angle formed by the first flat portion and the second flat portion, so that the device maintains the original light and thin state without increasing the thickness of the housing.
Further, the antenna also comprises at least one second antenna unit, wherein the second antenna unit comprises a radiating element and a feed structure;
the radiating piece is arranged on the first surface of the second flat part, and the radiating piece is connected with the radio frequency chip through the feed structure.
As can be seen from the above description, by additionally providing the second antenna unit and disposing the radiation member on the first surface of the second flat portion, the antenna module is provided with antennas in two different directions, so that the effect of receiving and transmitting the radio frequency signals in different directions by the antenna module is improved.
Further, the dielectric constant of the dielectric resonator is 6-140.
It can be known from the above description that, by using ceramic material to make the dielectric resonator, and the dielectric constant of the ceramic body is generally 6-140, the size and bandwidth of the dielectric resonator can be designed according to different shell sizes and bandwidth requirements, thereby improving the flexibility of antenna module design.
Further, the thickness of the first flat portion is the same as that of the bent portion, and the thickness of the first flat portion is smaller than that of the second flat portion.
As can be seen from the above description, by setting the first flat portion and the bent portion to have the same thickness, and the thickness of the first flat portion and the bent portion is smaller than that of the second flat portion, the size constraint of the first antenna in the direction of the first flat portion is reduced.
Furthermore, at least one through groove is formed in the bending part.
As can be seen from the above description, by providing at least one through groove on the bent portion, the stress generated during bending is reduced, and the bent portion is easier to form while the effective connection between the first flat portion and the second flat portion is maintained.
A communication device comprises the antenna module;
the shell comprises a middle frame;
the dielectric resonator is disposed toward the middle frame.
As is apparent from the above description, in general, the size limit of the case in the thickness direction is larger than the size limit in the longitudinal direction, and therefore, by disposing the first flat portion provided with the dielectric resonator of a larger size toward the middle frame, the performance of the horizontal-direction antenna is improved by utilizing an unnecessary space of the case in the longitudinal direction.
A manufacturing method of an antenna module comprises the following steps:
(1) Obtaining a substrate, and dividing a bending area and a first flat area on the substrate;
(2) Fixing a dielectric resonator on the first flat region;
(3) Bending the substrate at the bending region, forming a first flat portion, a second flat portion, and a bent portion connecting the first and second flat portions at the substrate.
As is apparent from the above description, by bending the substrate such that the substrate forms the first flat portion and the second flat portion having the normal lines in different directions and the bent portion connecting the first flat portion and the second flat portion; and the dielectric resonator is arranged on the first flat part, so that the effect of the antenna module on receiving and transmitting radio frequency signals is improved.
Further, before the step (3), further comprising:
at least one through groove penetrating through the substrate is formed in the bending area along the thickness direction of the substrate.
As can be seen from the above description, by forming at least one through groove penetrating through the substrate in the thickness direction of the substrate in the bending region, the connection relationship between the first flat portion and the second flat portion is weakened, and the portion to be bent with a smaller size is formed, so that the stress generated during bending is reduced, and the bent portion is easier to form while the effective connection between the first flat portion and the second flat portion is maintained.
Further, before the step (2), further comprising:
and forming grooves in the bending area and the first flat area along the thickness direction of the substrate.
As can be seen from the above description, by forming the grooves in the bending region and the first flat region in the thickness direction of the substrate, so that the first flat portion has a thinner thickness, it is possible to reduce the size limitation of the first antenna element, reduce the stress generated when bending, and form the bent portion more easily.
Further, a release film is arranged in the substrate;
the forming of the grooves in the bending region and the first flat region along the thickness direction of the substrate specifically includes:
and cutting the substrate to the position of the release film in the bending area and the first flat area by laser in a fixed depth manner, and stripping the substrate part and the release film at the cutting position.
As can be seen from the above description, the release film is disposed in the substrate, and the substrate is depth-cut to the position of the release film by the laser, so that the cut substrate is easier to peel.
Further, the position of the release film corresponds to the bending area and the first flat area.
As can be seen from the above description, the position of the release film corresponds to the position of the first flat portion, so that the substrate base material to be peeled after cutting corresponds to the position of the first flat portion, and the first flat portion can be directly marked off from the substrate through the position of the release film, which is more beneficial to subsequent bending.
Further, the step (2) is specifically:
and fixing the dielectric resonator on the first flat area by means of bonding or welding.
As is apparent from the above description, the dielectric resonator is fixed to the first flat portion by fixing the dielectric resonator to the first flat region by means of bonding or welding.
Further, a feed line is formed in the substrate;
after the step (2), further comprising:
fixing a feed metal block on the first flat area at a position close to the dielectric resonator, wherein one end of the feed line is connected with the feed metal block;
as is apparent from the above description, the dielectric resonator is made to resonate by providing the feeder line and connecting the feeder line to the feed metal block.
The utility model provides an above-mentioned antenna module and communication equipment and antenna module's manufacturing method can be applicable to the flattening communication equipment that has the radio frequency signal in many directions and receive and send the demand, like cell-phone and panel computer etc. explains through concrete implementation mode below:
example one
Referring to fig. 1, an antenna module includes a substrate 1, at least one first antenna unit 2, at least one second antenna unit 3, and a radio frequency chip 4;
referring to fig. 2, the substrate 1 includes a first flat portion 11, a bent portion 13, and a second flat portion 12 connected in sequence, where normal directions of the first flat portion 11 and the second flat portion 12 are different, that is, the bent portion 13 makes an included angle between the first flat portion 11 and the second flat portion 12, and in an alternative embodiment, the included angle is 90 °; the substrate 1 is an LCP base material; the thickness of the first flat part 11 is the same as that of the bent part 13, and the thickness of the first flat part 11 is smaller than that of the second flat part 12; the second flat portion 12 comprises a first face and a second face opposite, the second face being closer to the first flat portion 11 than the first face; the rf chip 4 is disposed on the second surface of the second flat portion 12; the other end of the feeder 22 is connected with the radio frequency chip 4;
referring to fig. 4, the first antenna unit 2 includes a dielectric resonator 21, and the dielectric resonator 21 is disposed on the first flat portion 11; the first antenna element 2 further comprises a feeder 22 and a feeder metal block 23, the feeder metal block 23 is disposed on the first flat portion 11 and is close to the dielectric resonator 21, and one end of the feeder 22 is connected to the feeder metal block 23; a feeding point 24 is arranged on the first flat part 11, the feeding point 24 is a metal pattern, and the feeding metal block is connected with the feeder 22;
specifically, the dielectric resonator 21 is in the shape of a cube; referring to fig. 3, the number of the feeding metal blocks 23 is three, and three feeding metal blocks 23 respectively contact one side surface of the dielectric resonator 21 close to the second flat portion 12 and two side surfaces adjacent to the one side surface, that is, three feeding metal blocks 23 respectively contact three side surfaces of the dielectric resonator 21, that is, one side surface of the dielectric resonator 21 close to the second flat portion 12 and two side surfaces adjacent to the one side surface; the metal block is equivalent to a feed probe; wherein, a first sub-feeding metal block in the three feeding metal blocks 23 is used for the feeding point of the dielectric resonator 21, that is, connected to the radio frequency feeder; the second sub-feeding metal block is used as the ground of the antenna, namely is connected with the ground wire, and the third sub-feeding metal block is used for structure fixing, namely has no feeding function; the dielectric constant of the dielectric resonator 21 is 6-140, so that the size and the bandwidth of the antenna can be flexibly designed; at least one through groove 14 is arranged on the bending part 13;
the second antenna element 3 comprises a radiating element 31 and a feed structure; the radiating element 31 is disposed on the first surface of the second flat portion 12, and the radiating element 31 is connected to the rf chip 4 through the feeding structure; the radiating element 31 is a patch antenna, and the conductor layers of the radiating element 31 and the feeder 22 are made of good conductor materials composed of copper or metal alloy;
in an alternative embodiment, the at least one second antenna unit 3 is arranged linearly or in an array, and the radiation members 31 of two adjacent second antenna units 3 have a spacing therebetween; the position of the first antenna corresponds to the position of the second antenna; the at least one first antenna unit 2 is arranged linearly or distributed in an array, and the dielectric resonators 21 of two adjacent first antenna units 2 have a space therebetween;
please refer to fig. 5, which shows a comparison between the performance of the patch antenna and the performance of the dielectric resonator 21; the bandwidth of the dielectric resonator 21 is 6.5GHz, the bandwidth of the patch antenna is 1GHz, the gain of the dielectric resonator 21 is 8.2dB, and the gain of the patch antenna is 6.6dB, which shows that the dielectric resonator 21 has advantages in antenna bandwidth and gain; the specific structural sizes of the two antennas in the embodiment can be adjusted, the bandwidth and gain difference are the inherent properties of the two antennas, and the comparison diagram adopts an optional size (not a unique size) in the general scheme.
Example two
Referring to fig. 6, a communication device includes an antenna module 7 according to the first embodiment;
the shell 5 is further included, and the shell 5 comprises a middle frame 51 and a rear cover 52; the dielectric resonator 21 is disposed toward the middle frame 51, specifically:
in an alternative embodiment, the first flat portion 11 of the antenna module 7 is disposed on one side of the device main board 6 in the length direction, and the second flat portion 12 of the antenna module 7 is disposed on one side of the device main board 6 in the thickness direction; the size of the antenna module 7 in the direction of the first flat part 11 and the size of the antenna module in the direction of the second flat part 12 are adapted to the size of the housing 5, so that the whole device is light and thin; since the housing 5 can accommodate the transverse dielectric resonator 21 in the horizontal direction, the performance of the horizontal antenna can be improved by using the redundant space.
EXAMPLE III
A manufacturing method of an antenna module comprises the following steps:
(1) Obtaining a substrate 1, and dividing a bending area 16 and a first flat area 17 on the substrate 1;
(2) Fixing a dielectric resonator 21 on the first flat region 17;
(3) Bending the substrate 1 at the bending region 16, and forming a first flat portion 11, a second flat portion 12, and a bent portion 13 connecting the first flat portion 11 and the second flat portion 12 on the substrate 1;
referring to fig. 7, in an alternative embodiment, the fabrication is performed in the following order:
s1, obtaining a substrate 1, and dividing a bending area 16, a first flat area 17 and a second flat area 18 on the substrate 1; a release film 8 is arranged in the substrate 1, and the position of the release film 8 corresponds to the bending area 16 and the first flat area 17; a feed line 22 is formed in the substrate 1; and a second antenna unit 3, namely a radiation piece 31 is arranged on the second flat area 18;
s2, forming at least one through-groove 14 penetrating through the substrate 1 in the bending region 16 in the thickness direction of the substrate 1; the through groove 14 can be formed by cutting the substrate 1 by a cutting device such as laser;
s3, forming a slot 15 in the bending area 16 and the first flat area 17 along the thickness direction of the substrate 1; specifically, the substrate 1 is deeply cut to the position of the release film 8 by laser in the bending area 16 and the first flat area 17, and the cut part of the substrate 1 and the release film 8 are peeled;
s4, fixing the dielectric resonator 21 on the first flat area 17; specifically, the dielectric resonator 21 is fixed to the first flat region 17 by means of bonding or welding; the first flat area 17 of the substrate 1 is provided with a feeding point 24, and the feeding point 24 comprises a metal pattern; fixing a feeding metal block on the first flat region 17 at a position close to the dielectric resonator 21, wherein one end of the feeding point 24 is connected with the feeding metal block; the other end of the feeding point 24 is connected with the feeder 22; in an alternative embodiment, when the dielectric resonator 21 is mounted, the feeding metal block 23 is firstly bonded to the dielectric resonator 21, and then the feeding metal block 23 is welded to the feeding point 24; in another alternative embodiment, the feeding metal block 23 is welded to the feeding point 24, and then the dielectric resonator 21 is bonded to the feeding metal block 23;
and S5, bending the substrate 1 at the bending area 16, and forming a first flat part 11, a second flat part 12 and a bending part for connecting the first flat part 11 and the second flat part 12 on the substrate 1.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (9)
1. An antenna module is characterized by comprising a substrate and at least one first antenna unit;
the substrate comprises a first flat part, a bending part and a second flat part which are connected in sequence, and the normal directions of the first flat part and the second flat part are different;
the first antenna element includes a dielectric resonator, and the dielectric resonator is disposed on the first flat portion.
2. The antenna module of claim 1, wherein the first antenna element further comprises a feed line and a feed metal block, the feed metal block is disposed on the first flat portion and adjacent to the dielectric resonator, and one end of the feed line is connected to the feed metal block.
3. The antenna module according to claim 2, wherein the dielectric resonator is shaped as a cube, the number of the feeding metal blocks is three, and three feeding metal blocks are respectively in contact with one side surface of the dielectric resonator close to the second flat portion and two side surfaces adjacent to the one side surface.
4. The antenna module of claim 2, wherein the second planar portion includes first and second opposing faces, the second face being closer to the first planar portion than the first face;
the radio frequency chip is arranged on the second surface of the second flat part; the other end of the feeder line is connected with the radio frequency chip.
5. The antenna module of claim 4, further comprising at least one second antenna element, wherein the second antenna element comprises a radiating element and a feed structure;
the radiating piece is arranged on the first surface of the second flat part, and the radiating piece is connected with the radio frequency chip through the feed structure.
6. The antenna module of claim 1, wherein the dielectric resonator has a dielectric constant of 6-140.
7. The antenna module of claim 1, wherein the thickness of the first flat portion is the same as that of the bent portion, and the thickness of the first flat portion is smaller than that of the second flat portion.
8. The antenna module according to claim 1, wherein the bending portion is provided with at least one through slot.
9. A communication device comprising an antenna module according to any one of claims 1-8;
the shell comprises a middle frame;
the dielectric resonator is disposed toward the middle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221262266.XU CN217881884U (en) | 2022-05-24 | 2022-05-24 | Antenna module and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221262266.XU CN217881884U (en) | 2022-05-24 | 2022-05-24 | Antenna module and communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217881884U true CN217881884U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221262266.XU Active CN217881884U (en) | 2022-05-24 | 2022-05-24 | Antenna module and communication equipment |
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| Country | Link |
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| CN (1) | CN217881884U (en) |
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- 2022-05-24 CN CN202221262266.XU patent/CN217881884U/en active Active
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