An antenna and electronic device

Abstract

The embodiment of the present application relates to the technical field of antennas, and discloses an antenna and an electronic device, the antenna comprising a first dielectric layer, a second dielectric layer, a feed structure and a plurality of metal pieces; the first dielectric layer has a first surface and a second surface arranged oppositely, the first dielectric layer is provided with a plurality of through holes, the through holes penetrate the first dielectric layer in the direction from the first surface to the second surface; the second dielectric layer is stacked with the first dielectric layer, and the second dielectric layer abuts against the second surface; the feed structure is arranged on the surface of the second dielectric layer away from the first dielectric layer; one of the metal pieces is arranged in one of the through holes, wherein the number of the metal pieces is less than or equal to the number of the through holes, and when the metal pieces are arranged in different through holes, the resonant frequencies of the antenna are different. In the above manner, the embodiment of the present application can adjust different frequencies of the antenna.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, and in particular to an antenna and an electronic device. Background Technology

[0002] Reconfigurability is a research hotspot in dielectric resonator antennas. Reconfigurable antennas allow for changes in operating frequency, polarization, and radiation characteristics to meet specific application requirements. By employing certain techniques to alter the current distribution on the antenna, and consequently the electromagnetic field distribution, reconfigurability is achieved. Through these changes in electrical properties, reconfigurable antennas can adapt to complex system requirements and varying transmission environments.

[0003] In the process of implementing the embodiments of the invention, the inventors discovered that as wireless communication systems become increasingly complex, transceiver devices must effectively handle several different frequency bands. The increase in the number of antennas and spatial layout issues lead to higher hardware complexity, requiring a single antenna to perform multiple functions to adapt to different environments and requirements. Summary of the Invention

[0004] The main technical problem solved by the embodiments of the present invention is to provide an antenna in which a plurality of through holes and a plurality of metal parts are provided in a first dielectric layer, one of the metal parts is disposed in one of the through holes, the metal part penetrates the first dielectric layer and is connected to the feeding structure, and the resonant frequency of the antenna is controlled by changing the number of the plurality of metal parts.

[0005] To solve the above-mentioned technical problems, the present invention provides an antenna comprising a first dielectric layer, a second dielectric layer, a feeding structure, and a plurality of metal components; the first dielectric layer has a first surface and a second surface disposed opposite to each other, and the first dielectric layer is provided with a plurality of through holes, the through holes penetrating the first dielectric layer along the direction from the first surface to the second surface; the second dielectric layer and the first dielectric layer are stacked, the second dielectric layer abutting against the second surface; the feeding structure is disposed on the surface of the second dielectric layer opposite to the first dielectric layer; a metal component is disposed in a through hole, wherein the number of metal components is less than or equal to the number of through holes, and when the metal components are disposed in different through holes, the resonant frequency of the antenna is different.

[0006] Optionally, the plurality of through holes are arranged in an array.

[0007] Optionally, the through holes are arranged in an odd number of rows, with the outer even-numbered rows having the same number of through holes, and the middle row having the fewest number of through holes.

[0008] Optionally, the first dielectric layer has an annular groove on the inner wall of the through hole; the antenna further includes a plurality of sockets, one of the sockets being partially received in one of the annular grooves, and the portion of the socket protruding from the annular groove is used to sleeve a metal piece.

[0009] Optionally, the first sidewall of the annular groove is provided with a first blind hole, and the second sidewall of the annular groove is provided with a second blind hole. The first sidewall and the second sidewall are arranged opposite to each other along the direction from the first surface to the second surface. The sleeve is provided with a first protrusion and a second protrusion. When the sleeve is received in the annular groove, the first protrusion is inserted into the first blind hole, and the second protrusion is inserted into the second blind hole.

[0010] Optionally, the outer wall of the metal part is provided with a limiting groove, the limiting groove is provided around the metal part, and the limiting groove is used to receive the portion of the sleeve that protrudes from the annular groove.

[0011] Optionally, the power supply structure is provided with slots along the direction from the first surface to the second surface, and the slots overlap with a portion of the through holes.

[0012] Optionally, the antenna further includes a third dielectric layer and a metal sheet, wherein the first dielectric layer, the second dielectric layer, the feeding structure and the third dielectric layer are stacked sequentially, and the metal sheet is disposed on the surface of the third dielectric layer opposite to the second dielectric layer.

[0013] Optionally, the metal sheet is arranged perpendicular to the slot.

[0014] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is to provide an electronic device including any of the antennas mentioned above.

[0015] This invention provides an antenna comprising a first dielectric layer, a second dielectric layer, a feeding structure, and a plurality of metal components. The first dielectric layer has a first surface and a second surface disposed opposite to each other, and the first dielectric layer has a plurality of through-holes that penetrate the first dielectric layer along the direction from the first surface to the second surface. The second dielectric layer is stacked with the first dielectric layer, and the second dielectric layer abuts against the second surface. The feeding structure is disposed on the surface of the second dielectric layer opposite to the first dielectric layer. One of the metal components is disposed in one of the through-holes, wherein the number of metal components is less than or equal to the number of through-holes, and the resonant frequency of the antenna is different when the metal components are disposed in different through-holes. By providing a plurality of through-holes and a plurality of metal components in the first dielectric layer, and one of the metal components being disposed in one of the through-holes, the metal component penetrates the first dielectric layer and is connected to the feeding structure. By changing the number of the plurality of metal components, the resonant frequency of the antenna can be controlled. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the antenna structure according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the antenna of the present invention from another angle;

[0019] Figure 3 This is an exploded view of the antenna of the present invention at one angle;

[0020] Figure 4 This is an exploded view of the antenna of the present invention from another angle;

[0021] Figure 5 This is the frequency coverage diagram of the antenna of the present invention.

[0022] Figure descriptions: 100, antenna; 10, first dielectric layer; 101, first surface; 102, second surface; 103, through-hole; 20, second dielectric layer; 30, feeding structure; 301, slot; 40, metal component; 50, third dielectric layer; 60, metal sheet. Detailed Implementation

[0023] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Please see Figure 1 and Figure 2The antenna 100 includes a first dielectric layer 10, a second dielectric layer 20, a feeding structure 30, a plurality of metal parts 40, a third dielectric layer 50, and a metal sheet 60. The second dielectric layer 20 and the first dielectric layer 10 are stacked, and the second dielectric layer 20 abuts against the second surface 102. The feeding structure 30 is disposed on the surface of the second dielectric layer 20 away from the first dielectric layer 10. The plurality of metal parts 40 are disposed on the first dielectric layer 10. The first dielectric layer 10, the second dielectric layer 20, the feeding structure 30, and the third dielectric layer 50 are stacked sequentially. The metal sheet 60 is disposed on the surface of the third dielectric layer 50 away from the second dielectric layer 20. The antenna 100 of this application is obtained through the above structure.

[0026] Please see Figure 3 The first dielectric layer 10 has a first surface 101 and a second surface 102 disposed opposite to each other. The first dielectric layer 10 is provided with a plurality of through holes 103, which penetrate the first dielectric layer 10 along the direction from the first surface 101 to the second surface 102, and the plurality of through holes 103 are arranged in an array. A metal component 40 is disposed in one of the through holes 103, wherein the number of metal components 40 is less than or equal to the number of through holes 103. When the metal components 40 are disposed in different through holes 103, the resonant frequency of the antenna 100 is different. In this embodiment, the first dielectric layer 10 and the second dielectric layer 10... Both layer 20 and the third dielectric layer 50 are made of low dielectric constant PCB board material. By setting several metal pillars, the magnetic field distribution generated between the metal parts 40 can be equivalent to a high dielectric constant dielectric resonator. This is because the metal parts 40 have the effect of binding energy in the first dielectric layer 10, and the high dielectric constant dielectric also has the effect of binding energy. Therefore, under specific size conditions, setting several metal parts 40 on the low dielectric constant dielectric layer can be equivalent to a high dielectric constant dielectric resonator antenna 100. Furthermore, by adjusting the number of the metal parts 40, the length and width of the dielectric resonator can be further changed, thereby realizing a frequency reconfigurable antenna 100.

[0027] Please see Figure 3 , Figure 4 and Figure 5 In some preferred embodiments, the vias 103 are arranged in an odd number of rows, with the same number of vias 103 in the outer even-numbered rows and the fewest number of vias 103 in the middle row. Through the arrangement of the vias 103, an equivalent DRA (dielectric resonator) with a dielectric constant of 14 can be generated. Through comparative experiments, it was found that the resonant frequency of the antenna 100 can switch between five resonant points: 36 GHz, 34 GHz, 30 GHz, 24 GHz, and 22.5 GHz.

[0028] Please see Figure 4The feeding structure 30 is provided with a slot 301 along the direction from the first surface 101 to the second surface 102. The slot 301 overlaps with a portion of the plurality of through holes 103. The metal sheet 60 is arranged perpendicular to the slot 301. The metal sheet 60 is a microstrip antenna 100. The microstrip antenna 100 transmits its electromagnetic wave energy to the metal post through the slot 301. In other words, the antenna 100 is fed by slot-coupled feeding.

[0029] In some embodiments, the through hole 103 is a metal through hole 103.

[0030] In some embodiments, the first dielectric layer 10 is provided with an annular groove on the inner wall of the through hole 103. The antenna 100 further includes a plurality of sockets. One of the sockets is partially received in one of the annular grooves, and the portion of the socket protrudes from the annular groove. The portion of the socket protruding from the annular groove is used to sleeve a metal part 40. By providing the sockets, the sleeves can limit the metal part 40 and reduce the risk that the metal part 40 may separate naturally.

[0031] Specifically, the first sidewall of the annular groove is provided with a first blind hole, and the second sidewall of the annular groove is provided with a second blind hole. The first sidewall and the second sidewall are arranged opposite to each other along the direction from the first surface 101 to the second surface 102. The sleeve is provided with a first protrusion and a second protrusion. When the sleeve is received in the annular groove, the first protrusion is inserted into the first blind hole, and the second protrusion is inserted into the second blind hole. By inserting the first protrusion into the first blind hole and the second protrusion into the second blind hole, the risk of the metal part 40 being able to separate naturally is further reduced.

[0032] In some preferred embodiments, the outer wall of the metal part 40 is provided with a limiting groove, the limiting groove is provided around the metal part 40, and the limiting groove is used to receive the portion of the sleeve that protrudes from the annular groove.

[0033] This invention provides an antenna 100, which includes a first dielectric layer 10, a second dielectric layer 20, a feeding structure 30, and a plurality of metal components 40. The first dielectric layer 10 has a first surface 101 and a second surface 102 disposed opposite to each other, and the first dielectric layer 10 is provided with a plurality of through holes 103, which penetrate the first dielectric layer 10 along the direction from the first surface 101 to the second surface 102. The second dielectric layer 20 is stacked with the first dielectric layer 10, and the second dielectric layer 20 abuts against the second surface 102. The feeding structure 30 is disposed on the surface of the second dielectric layer 20 away from the first dielectric layer 10. A metal component 40 is disposed in a through hole 103, wherein the number of metal components 40 is less than or equal to the number of through holes 103, and when the metal components 40 are disposed in different through holes 103, the resonant frequency of the antenna 100 is different. A plurality of through holes 103 and a plurality of metal parts 40 are provided in the first dielectric layer 10. One of the metal parts 40 is disposed in one of the through holes 103. The metal part 40 penetrates the first dielectric layer 10 and is connected to the feed structure 30. By changing the number of the plurality of metal parts 40, the resonant frequency of the antenna 100 can be adjusted.

[0034] This application also provides an embodiment of an electronic device. For details of the specific implementation, please refer to the above-described antenna 100 embodiment, which will not be repeated here.

[0035] It should be noted that while the preferred embodiments of the present invention are given in the specification and accompanying drawings, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of the present invention; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of the present invention. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of the present invention specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An antenna, characterized in that, include: A first dielectric layer has a first surface and a second surface disposed opposite to each other. The first dielectric layer is provided with a plurality of through holes. The through holes penetrate the first dielectric layer along the direction from the first surface to the second surface. The first dielectric layer is made of a low dielectric constant PCB board material. The plurality of through holes are arranged in an array. A second dielectric layer is stacked with a first dielectric layer, and the second dielectric layer abuts against the second surface; A power supply structure is disposed on the surface of the second dielectric layer opposite to the first dielectric layer; A plurality of metal parts, one of the metal parts being disposed in one of the through holes, wherein the number of the metal parts is less than or equal to the number of through holes, and when the metal parts are disposed in different through holes, the resonant frequency of the antenna is different; The magnetic field distribution generated between the metal components is equivalent to a dielectric resonator with a high dielectric constant. By adjusting the number of the metal components, the length and width of the dielectric resonator can be changed, thus achieving frequency reconfiguration.

2. The antenna according to claim 1, characterized in that, The through holes are arranged in an odd number of rows, with the outer even-numbered rows having the same number of through holes, and the middle row having the fewest number of through holes.

3. The antenna according to claim 1, characterized in that, The first dielectric layer has an annular groove on the inner wall of the through hole; The antenna further includes several sockets, one of which is partially received in an annular groove and the other protruding from the annular groove. The protruding portion of the socket is used to mount a metal piece.

4. The antenna according to claim 3, characterized in that, The first sidewall of the annular groove is provided with a first blind hole, and the second sidewall of the annular groove is provided with a second blind hole. The first sidewall and the second sidewall are arranged opposite to each other along the direction from the first surface to the second surface. The socket is provided with a first protrusion and a second protrusion. When the socket is received in the annular groove, the first protrusion is inserted into the first blind hole, and the second protrusion is inserted into the second blind hole.

5. The antenna according to claim 4, characterized in that, The outer wall of the metal part is provided with a limiting groove, which surrounds the metal part and is used to accommodate the portion of the sleeve that protrudes from the annular groove.

6. The antenna according to any one of claims 1-5, characterized in that, The power supply structure is provided with slots along the direction from the first surface to the second surface, and the slots overlap with some of the through holes.

7. The antenna according to claim 6, characterized in that, The antenna further includes a third dielectric layer and a metal sheet. The first dielectric layer, the second dielectric layer, the feeding structure, and the third dielectric layer are stacked sequentially, and the metal sheet is disposed on the surface of the third dielectric layer opposite to the second dielectric layer.

8. The antenna according to claim 7, characterized in that, The metal sheet is positioned perpendicular to the slit.

9. An electronic device, characterized in that, Including the antenna as described in any one of claims 1-8.

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