CN216698728U - Be applied to WIFI 6's dual-frenquency antenna - Google Patents
Be applied to WIFI 6's dual-frenquency antenna Download PDFInfo
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- CN216698728U CN216698728U CN202220311577.4U CN202220311577U CN216698728U CN 216698728 U CN216698728 U CN 216698728U CN 202220311577 U CN202220311577 U CN 202220311577U CN 216698728 U CN216698728 U CN 216698728U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The utility model discloses a dual-frequency antenna applied to WIFI6, which comprises a dielectric substrate, a first radiation patch, a second radiation patch, a third radiation patch and a fourth radiation patch, wherein the first radiation patch, the second radiation patch, the third radiation patch and the fourth radiation patch are positioned on the upper surface of the substrate; the second radiation patches are connected through a fourth radiation patch with a metal through hole; the first radiation patch comprises a first rectangular radiation patch, and the two I-shaped radiation patches are symmetrically arranged in two patch holes of the first rectangular radiation patch; the second radiation patch comprises a binary tree-shaped fractal radiation patch, and each branch of the binary tree-shaped fractal radiation patch is connected with a second rectangular radiation patch; the rhombic radiation patches of the third radiation patch are coupled and arranged in the gap between the two Y-shaped branches, and the T-shaped radiation patch position is connected with the rhombic radiation patches; the fourth radiation patch includes a third rectangular radiation patch and a trapezoidal radiation patch which are arranged up and down along the vertical axis. The antenna has good performance and small size, and is not influenced by the background environment.
Description
Technical Field
The utility model relates to the technical field of wireless communication, in particular to a dual-frequency antenna applied to WIFI 6.
Background
Wireless communication technology has undergone tremendous evolution from analog cellular systems in the eighties of the last century to today's 4G systems. At present, 4G communication technology is commercialized in a large scale, and the data transmission rate is greatly improved. However, with the rapid rise of emerging technologies such as internet of things and internet of vehicles, people have made higher requirements on wireless communication systems. 4G communication technology has not been able to meet the requirements of people for high speed and low time delay. Therefore, 5G is currently the focus of attention in the mobile communication industry. With the increasing demand of broadband wireless services, the existing spectrum resources are seriously short, and therefore, the 5G application frequency band not only focuses on the low frequency band, but also uses the high frequency millimeter wave frequency band. Meanwhile, with continuous progress of a micro-blog integrated circuit (MIC) technology and a very large scale integrated circuit (vlsi) technology and application of various new materials and new processes, communication electronic equipment is increasingly miniaturized, and the information processing capability of the communication electronic equipment is required to be developed to be more intelligent and wider. The system has higher and higher requirements on the antenna design, so that the modern antenna needs to adapt to the miniaturization development and meet various performance indexes including bandwidth and efficiency. Generally, the smaller the size of the antenna, the efficiency and bandwidth performance of the antenna will change inversely, so a compromise between size, bandwidth and efficiency should be found. Since the physical limit of antenna miniaturization has not been achieved, it is effective to take measures in the aspects of antenna shape and structure selection, feeding manner, use of materials other than conductors, and the like.
Disclosure of Invention
The utility model aims to provide a dual-frequency antenna applied to WIFI6, which covers 0.7897-1.11 GHz and 1.5125-8.5 GHz frequency bands, has good performance and small size, meets different application conditions and is not influenced by background environment.
The technical scheme adopted by the utility model is as follows:
a dual-frequency antenna applied to WIFI6 comprises a dielectric substrate, a first radiation patch, a second radiation patch, a third radiation patch and a fourth radiation patch; the first radiation patch, the second radiation patch and the third radiation patch are sequentially arranged on the upper surface of the dielectric substrate from bottom to top; the fourth radiation patch is arranged on the lower surface of the dielectric substrate and connected with the second radiation patch through the metal through hole; the first radiation patch comprises a first rectangular radiation patch and two I-shaped radiation patches, the first rectangular radiation patch is provided with two patch holes which are symmetrically arranged, and the two I-shaped radiation patches are correspondingly arranged in the two patch holes and are arranged with a gap from the periphery; the second radiation patch comprises a binary tree-shaped fractal radiation patch and four second rectangular radiation patches; the binary tree-shaped fractal radiation patch is provided with two Y-shaped branches, and each branch of each Y-shaped branch is correspondingly connected with a second rectangular radiation patch; the third radiation patch comprises a diamond radiation patch and a T-shaped radiation patch; the rhombic radiating patches are coupled and arranged in gaps between the two Y-shaped branches, the T-shaped radiating patches are positioned on a symmetrical axis between the two Y-shaped branches, the vertical ends of the T-shaped radiating patches are connected with the rhombic radiating patches, and the short and transverse ends of the T-shaped radiating patches are parallel to one side edge of the dielectric substrate; the fourth radiation patch comprises a third rectangular radiation patch and a trapezoidal radiation patch which are vertically arranged along a vertical axis, the third rectangular radiation patch is located below the second radiation patch and is connected with the second radiation patch through a metal through hole, one side edge of the third rectangular radiation patch is connected with the upper bottom of the trapezoidal radiation patch, and the lower bottom of the trapezoidal radiation patch is connected with the corresponding side of the medium substrate.
Further, two patch holes in the first rectangular radiation patch of the first radiation patch are rectangular holes.
Furthermore, the roots of the two Y-shaped branches of the second radiation patch are connected through a fourth rectangular radiation patch.
Furthermore, a trapezoidal groove is formed in the position, corresponding to the fourth rectangular radiation patch, of the upper side of the first rectangular radiation patch of the first radiation patch.
Furthermore, the fourth rectangular radiation patch of the second radiation patch and the third rectangular radiation patch of the fourth radiation patch have the same length and width and are respectively arranged on the upper surface and the lower surface of the dielectric substrate.
Furthermore, the width of the lower bottom edge of the trapezoidal radiation patch is the same as the length of the corresponding connected third rectangular radiation patch.
Furthermore, the metal via hole is a cylindrical metal via hole, the number of the metal via holes is three, and the first radiation patch and the fourth radiation patch are connected through the three cylindrical metal via holes.
Furthermore, the first rectangular radiating patch of the first radiating patch and the third rectangular radiating patch of the fourth radiating patch are connected through a feed point to form a dual-band antenna. The feeding points are arranged on the corresponding side of the dielectric substrate.
Furthermore, the feeding point is electrically connected with a feeding transmission line.
By adopting the technical scheme, high-frequency radiation can be realized in the radiation patch combining the I shape and the rectangle, and the trapezoidal groove and the annular groove can realize the adjustability of frequency and bandwidth; the binary tree-shaped radiation patch can better realize the low-bandwidth impedance bandwidth of the antenna, thereby expanding the bandwidth of the antenna; the coupling of the diamond-shaped radiating patch and the binary tree-shaped radiating patch realizes impedance matching better. The antenna has good performance and small size, meets different application conditions, and is not influenced by background environment.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a perspective view of an antenna in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the upper surface of a dielectric substrate according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the lower surface of the dielectric substrate according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating simulation results of reflection coefficients of an antenna according to an embodiment of the present invention;
FIG. 5 is a second graph showing simulation results of reflection coefficients of an antenna according to an embodiment of the present invention;
fig. 6 is an XOZ plane pattern of the antenna at Freq =2.45GHz in an embodiment of the utility model;
fig. 7 is an XOZ plane pattern of the antenna at Freq =5.5GHz in an embodiment of the utility model;
in the figure: 1-dielectric substrate, 11-cylindrical metal via hole, 2-first radiation patch, 20-first rectangular radiation patch, 21-I-shaped radiation patch, 22-annular groove, 23-trapezoidal groove, 3-second radiation patch, 30-binary tree-shaped radiation patch, 31-fourth rectangular radiation patch, 32-second rectangular radiation patch, 4-third radiation patch, 41-diamond radiation patch, 42-T-shaped radiation patch, 5-fourth radiation patch, 51-third rectangular radiation patch, 52-trapezoidal radiation patch and 6-feed point.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1 to 7, the present invention provides a dual-band antenna applied to WIFI6, which includes a dielectric substrate 1, a first radiation patch 2, a second radiation patch 3, a third radiation patch 4, and a fourth radiation patch 5; the first radiation patch 2, the second radiation patch 3 and the third radiation patch 4 are arranged on the upper surface of the dielectric substrate; the fourth radiation patch 5 is arranged on the lower surface of the dielectric substrate 1; the first radiation patch 2 is a combined radiation patch comprising two symmetrically arranged i-shaped radiation patches 21 and a first rectangular radiation patch 20; the second radiation patch 3 comprises a binary tree-shaped fractal radiation patch 30 and four second rectangular radiation patches 32, the binary tree-shaped fractal radiation patch 30 is provided with two Y-shaped branches 33 which are divided into two parts, and each branch of each Y-shaped branch is correspondingly connected with one second rectangular radiation patch 32; the third radiation patch 4 comprises a diamond radiation patch 41 and a T-shaped radiation patch 42, the diamond radiation patch 41 is coupled and arranged in a gap between the two Y-shaped branches 33, the T-shaped radiation patch 42 is positioned on a symmetry axis between the two Y-shaped branches 33, the vertical end of the T-shaped radiation patch 42 is connected with the diamond radiation patch 41, and the short transverse end of the T-shaped radiation patch 42 is parallel to one side edge of the medium substrate 1; the fourth radiation patch 5 comprises a third rectangular radiation patch 51 and a trapezoidal radiation patch 52, the third rectangular radiation patch 51 is positioned below the second radiation patch 2 and is connected with the second radiation patch 2 through a metal through hole 11, one side edge of the third rectangular radiation patch 51 is connected with the upper bottom of the trapezoidal radiation patch 52, and the lower bottom of the trapezoidal radiation patch 52 is connected with the corresponding side edge of the dielectric substrate 1; the first rectangular radiating patch 20 of the first radiating patch 2 and the third rectangular radiating patch 51 of the fourth radiating patch 5 are connected through the feeding point 6 to form a dual-band antenna.
As shown in fig. 2, in this embodiment, the first radiation patch 2 is a radiation patch formed by combining a rectangle and two symmetrical i-shapes, the upper surface of the substrate 1 with a medium is printed, a trapezoidal groove 23 is formed on the upper side of the first rectangle radiation patch 20, and a patch hole 22 surrounds the i-shaped radiation patch 21, so that good impedance matching is achieved; the tree structure 3 of the second radiation patch 3 can expand the bandwidth, and the four second rectangular radiation patches 32 can realize good matching; the diamond-shaped radiating patches 41 of the third radiating patch 4 are coupled to a tree structure.
As shown in fig. 3, the lower surface of the dielectric substrate 1 includes a fourth radiation patch 5 connected to the second radiation patch 3 through three cylindrical metal vias 11, and the fourth rectangular radiation patch 31 and the third rectangular radiation patch 51 have the same relative position and size; the first rectangular radiating patch 20 and the fourth radiating patch 5 are connected by a feed point 6.
Preferably, in this embodiment, the first dielectric substrate 1 is an FR4 dielectric substrate 1.
Preferably, in the present embodiment, the first radiation patch 2, the second radiation patch 3, the third radiation patch 4, and the fourth radiation patch 5 and the ground plate are molded by copper, aluminum, silver, or a gold material.
By adopting the technical scheme, high-frequency radiation can be realized in the radiation patch formed by combining the I-shaped radiation patch and the first rectangular radiation patch, and the frequency and bandwidth adjustability can be realized by matching the trapezoidal groove with the annular groove formed by the patch holes; the binary tree-shaped radiation patch can better realize the low-bandwidth impedance bandwidth of the antenna, thereby expanding the bandwidth of the antenna; the coupling of the diamond-shaped radiating patch and the binary tree-shaped radiating patch realizes impedance matching better. The antenna has good performance and small size, meets different application conditions, and is not influenced by background environment.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
Claims (9)
1. A dual-band antenna for WIFI6, characterized in that: the antenna comprises a dielectric substrate, a first radiation patch, a second radiation patch, a third radiation patch and a fourth radiation patch; the first radiation patch, the second radiation patch and the third radiation patch are sequentially arranged on the upper surface of the dielectric substrate from bottom to top; the fourth radiation patch is arranged on the lower surface of the dielectric substrate and connected with the second radiation patch through the metal through hole; the first radiation patch comprises a first rectangular radiation patch and two I-shaped radiation patches, the first rectangular radiation patch is provided with two patch holes which are symmetrically arranged, and the two I-shaped radiation patches are correspondingly arranged in the two patch holes and are arranged with a gap from the periphery; the second radiation patch comprises a binary tree-shaped fractal radiation patch and four second rectangular radiation patches; the binary tree-shaped fractal radiation patch is provided with two Y-shaped branches, and each branch of each Y-shaped branch is correspondingly connected with a second rectangular radiation patch; the third radiation patch comprises a diamond radiation patch and a T-shaped radiation patch; the rhombic radiating patches are coupled and arranged in gaps between the two Y-shaped branches, the T-shaped radiating patches are positioned on a symmetrical axis between the two Y-shaped branches, the vertical ends of the T-shaped radiating patches are connected with the rhombic radiating patches, and the short transverse ends of the T-shaped radiating patches are parallel to one side edge of the dielectric substrate; the fourth radiation patch comprises a third rectangular radiation patch and a trapezoidal radiation patch which are vertically arranged along a vertical axis, the third rectangular radiation patch is located below the second radiation patch and is connected with the second radiation patch through a metal through hole, one side edge of the third rectangular radiation patch is connected with the upper bottom of the trapezoidal radiation patch, and the lower bottom of the trapezoidal radiation patch is connected with the corresponding side of the medium substrate.
2. The dual-band antenna applied to WIFI6 as claimed in claim 1, wherein: the two patch holes in the first rectangular radiation patch of the first radiation patch are rectangular holes.
3. The dual-band antenna applied to WIFI6 as claimed in claim 1, wherein: the roots of the two Y-shaped branches of the second radiation patch are connected through a fourth rectangular radiation patch.
4. The dual-band antenna applied to WIFI6 of claim 3, wherein: the position that the side corresponds the fourth rectangle radiation paster on the first rectangle radiation paster of first radiation paster is equipped with a dovetail groove.
5. The dual-band antenna applied to WIFI6 as claimed in claim 4, wherein: the fourth rectangular radiation patch of the second radiation patch and the third rectangular radiation patch of the fourth radiation patch have the same length and width and are respectively arranged on the upper surface and the lower surface of the medium substrate.
6. The dual-band antenna applied to WIFI6 as claimed in claim 1, wherein: the width of the lower bottom edge of the trapezoidal radiation patch is the same as the length of the corresponding connected third rectangular radiation patch.
7. The dual-band antenna applied to WIFI6 of claim 1, wherein: the metal via hole is the columniform metal via hole, and the metal via hole is three, and first radiation paster and fourth radiation paster pass through three columniform metal via holes and link to each other.
8. The dual-band antenna applied to WIFI6 as claimed in claim 1, wherein: the first rectangular radiation patch of the first radiation patch and the third rectangular radiation patch of the fourth radiation patch are connected through a feed point to form a dual-band antenna.
9. The dual-band antenna applied to WIFI6 as claimed in claim 1, wherein: the feeding point is electrically connected with a feeding transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220311577.4U CN216698728U (en) | 2022-02-16 | 2022-02-16 | Be applied to WIFI 6's dual-frenquency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220311577.4U CN216698728U (en) | 2022-02-16 | 2022-02-16 | Be applied to WIFI 6's dual-frenquency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216698728U true CN216698728U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220311577.4U Active CN216698728U (en) | 2022-02-16 | 2022-02-16 | Be applied to WIFI 6's dual-frenquency antenna |
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| Country | Link |
|---|---|
| CN (1) | CN216698728U (en) |
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2022
- 2022-02-16 CN CN202220311577.4U patent/CN216698728U/en active Active
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