CN114142226A - Broadband dual-polarized antenna applied to LTE wireless communication system base station - Google Patents
Broadband dual-polarized antenna applied to LTE wireless communication system base station Download PDFInfo
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- CN114142226A CN114142226A CN202111458476.6A CN202111458476A CN114142226A CN 114142226 A CN114142226 A CN 114142226A CN 202111458476 A CN202111458476 A CN 202111458476A CN 114142226 A CN114142226 A CN 114142226A
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- shaped metal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a broadband dual-polarized antenna applied to a base station of an LTE wireless communication system, wherein a dielectric substrate is arranged above an artificial magnetic conductor; the second fan-shaped metal patch, the third fan-shaped metal patch are arranged on the upper surface of the medium substrate, and the first fan-shaped metal patch and the fourth fan-shaped metal patch are arranged on the lower surface of the medium substrate. The invention relates to the technical field of communication. Under the influence of Artificial Magnetic Conductor (AMC), the working bandwidth of the antenna is greatly widened on the premise of reducing the size of the antenna, and the radiation performance of the antenna is also greatly improved. The broadband miniaturization dual-polarized antenna has the advantages of simple structure, easy processing, small volume, low profile, light weight and the like.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a broadband dual-polarized antenna applied to a base station of an LTE (Long term evolution) wireless communication system, which works in an LTE frequency band (from 1.88GHz to 2.7GHz) and can be used in the wireless communication system.
Background
The antenna is used as the foremost end of receiving and transmitting of a communication system, the requirement of an LTE wireless communication system on the antenna is higher and higher, the antenna is required to have small size, high integration and low profile, meanwhile, the working bandwidth can cover various different frequency band ranges, and the antenna has good gain and directional diagram characteristics. A greater demand is placed on the size of the antenna, and the size of the antenna is reduced as much as possible while the performance of the antenna is ensured. While a typical miniaturized circularly polarized antenna has a narrower operating bandwidth and deteriorated radiation pattern performance. In order to solve the above problems, the present invention provides a small broadband circular polarization dual-polarized antenna, which has a wider circular polarization bandwidth and a good radiation pattern on the basis of reducing the size of the antenna, and can significantly improve the performance of the system, so that the antenna can be applied to a wireless communication system.
Disclosure of Invention
The present invention aims to provide a broadband dual-polarized antenna applied in a base station of an LTE wireless communication system, so as to solve the problems proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the broadband dual-polarized antenna applied to the LTE wireless communication system base station comprises a dielectric substrate, an artificial magnetic conductor, a first fan-shaped metal patch, a second fan-shaped metal patch, a third fan-shaped metal patch, a fourth fan-shaped metal patch, a first metal strip, a second metal strip, a coaxial line, a first SMA connector and a second SMA connector, wherein the dielectric substrate is arranged above the artificial magnetic conductor; the second fan-shaped metal patch, the third fan-shaped metal patch are arranged on the upper surface of the medium substrate, and the first fan-shaped metal patch and the fourth fan-shaped metal patch are arranged on the lower surface of the medium substrate; the fourth fan-shaped metal patch is connected with a second metal strip, the second metal strip is arranged on the lower surface of the medium substrate and is connected with the coaxial line outer skin, and the coaxial line inner core is connected with the second fan-shaped metal patch; the first SMA connector and the second SMA connector are arranged on the lower surface of the artificial magnetic conductor.
Preferably, the second fan-shaped metal patch and the third fan-shaped metal patch are composed of two identical metal patches arranged on the upper surface of the dielectric substrate, the first fan-shaped symmetrical oscillator metal patch and the fourth fan-shaped metal patch are composed of two identical metal patches arranged on the lower surface of the dielectric substrate, and the directions of the fan-shaped metal patches are consistent and the distances between the fan-shaped metal patches are equal.
Preferably, the first SMA connector and the second SMA connector are connected with the artificial magnetic conductor and the lower surface.
Preferably, the fan-shaped metal patch is an aluminum plate or a copper plate.
Compared with the prior art, the broadband dual-polarized antenna applied to the base station of the LTE wireless communication system has the beneficial effects that:
under the influence of Artificial Magnetic Conductor (AMC), the working bandwidth of the antenna is greatly widened on the premise of reducing the size of the antenna, and the radiation performance of the antenna is also greatly improved.
The broadband miniaturization dual-polarized antenna has the advantages of simple structure, easy processing, small volume, low profile, light weight and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
FIG. 1 is a top plan view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a bottom plan view of the base layer of the present invention;
FIG. 4 is a graph of S-parameters for an antenna of the present invention;
FIG. 5 is a port isolation for the antenna of the present invention;
FIG. 6 is an E-plane radiation pattern of the present invention operating at 2.2 GHz;
FIG. 7 is an H-plane radiation pattern of the present invention operating at 2.2 GHz;
in the figure: 1. a dielectric substrate; 2 and 5, Artificial Magnetic Conductor (AMC); 31. a first fan-shaped metal patch; 32. a second fan-shaped metal patch; 33. a third fan-shaped metal patch; 34. a fourth fan-shaped metal patch; 41. a first metal strip; 42. a second metal strip; 6. a coaxial line; 71. a first SMA joint; 72. a second SMA joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the broadband dual-polarized antenna applied to the LTE wireless communication system base station comprises a dielectric substrate 1, artificial magnetic conductors 2 and 5, a first fan-shaped metal patch 31, a second fan-shaped metal patch 32, a third fan-shaped metal patch 33, a fourth fan-shaped metal patch 34, a first metal strip 41, a second metal strip 42, a coaxial line 6, a first SMA joint 71 and a second SMA joint 72, wherein the dielectric substrate 1 is arranged above the artificial magnetic conductors; the second fan-shaped metal patch 32, the third fan-shaped metal patch 33 are arranged on the upper surface of the medium substrate 1, the first fan-shaped metal patch 31 and the fourth fan-shaped metal patch 34 are arranged on the lower surface of the medium substrate 1, the third fan-shaped metal patch 33 is connected with the first metal strip 41, the first metal strip 41 is arranged on the upper surface of the medium substrate 1 and is connected with the inner core of the other coaxial wire 6, and the outer skin of the coaxial wire 6 is connected with the first fan-shaped metal patch 31; the fourth fan-shaped metal patch 34 is connected with a second metal strip 42, the second metal strip 42 is arranged on the lower surface of the dielectric substrate 1 and is connected with the outer skin of the coaxial wire 6, and the inner core of the coaxial wire 6 is connected with the second fan-shaped metal patch 32; the first SMA joint 71 and the second SMA joint 72 are disposed on the lower surfaces of the artificial magnetic conductors 2 and 5.
Second fan-shaped metal patch 32, third fan-shaped metal patch 33 is by two the same, set up in the upper surface metal patch of dielectric substrate 1 and constitute, first fan-shaped symmetry oscillator metal patch 31, fourth fan-shaped metal patch 34 is by two the same, set up in the lower surface metal patch of dielectric substrate 1 and constitute, wherein fan- shaped metal patch 31, 32, 33, 34's direction is unanimous, distance between each other equals, first SMA connect 71, second SMA connect 72 and artificial magnetic conductor 2,5 lower surfaces link to each other, fan-shaped metal patch be aluminum plate or copper.
In one embodiment, the Artificial Magnetic Conductor (AMC)5 has a dielectric constant of 8, a length L of 210mm, a width W of 140mm, an overall antenna height H of 23mm, a dielectric substrate 1 having a dielectric constant of 2.65, a dielectric plate length of 55 mm, a width of 55 mm, and a height of 1 mm. The four fan-shaped metal patches are respectively printed on the upper surface and the lower surface of the dielectric substrate 1. Fan- shaped metal patches 31 and 32, 33 and 34.
The size is as described above, finally the skin of the SMA connector is welded on the metal grounding plate, the broadband dual-polarized antenna applied to the LTE wireless communication system base station of the invention is completed,
the invention can be further illustrated by the following simulations:
1. emulated content
Simulation software is utilized to carry out simulation calculation on the S parameter curve, the isolation degree, the gain and the far field radiation directional diagram of the broadband dual-polarized antenna applied to the base station of the LTE wireless communication system.
Simulation result
Fig. 4 is a S-parameter graph of the antenna of the present invention. The SMA joints 71 and 72 correspond to the ports 1 and 2. As can be seen from FIG. 4, the-10 dB active impedance matching bandwidth of the antenna is (1.80-2.83GHz), and the LTE frequency band can be completely covered.
Fig. 5 shows the port isolation of the present antenna. It can be seen that the port isolation is greater than 25 Db.
Fig. 6 and 7 are horizontal plane and vertical plane directional diagrams of the antenna at the frequency of 2.2GHz, respectively. It can be seen from the figure that the antenna has a wider gain lobe width. The antenna has a good front-to-back ratio of about 20dB, and the horizontal plane and vertical plane directional patterns have good symmetry, so that the broadband dual-polarized antenna applied to the base station of the LTE wireless communication system has good radiation characteristics.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The broadband dual-polarized antenna applied to the LTE wireless communication system base station is characterized in that: the magnetic field sensor comprises a dielectric substrate (1), artificial magnetic conductors (2,5), fan-shaped symmetrical oscillator metal patches (31, 32, 33, 34), metal strips (41, 42), a coaxial line (6) and SMA joints (71, 72), wherein the dielectric substrate (1) is arranged above the artificial magnetic conductors (2, 5); the fan-shaped symmetrical vibrator metal patches (32 and 33) are arranged on the upper surface of the dielectric substrate (1), the fan-shaped symmetrical vibrator metal patches (31 and 34) are arranged on the lower surface of the dielectric substrate (1), the fan-shaped symmetrical vibrator metal patches (33) are connected with the metal strip (41), the metal strip (41) is arranged on the upper surface of the dielectric substrate (1) and is connected with the inner core of the other coaxial line (6), and the outer skin of the coaxial line (6) is connected with the fan-shaped symmetrical vibrator metal patches (31); the fan-shaped symmetrical oscillator metal patch (34) is connected with a metal strip (42), the metal strip (42) is arranged on the lower surface of the dielectric substrate (1) and is connected with the outer skin of the coaxial wire (6), and the inner core of the coaxial wire (6) is connected with the fan-shaped symmetrical oscillator metal patch (32); the SMA joints (71, 72) are arranged on the lower surfaces of the artificial magnetic conductors (2, 5).
2. The broadband dual-polarized antenna applied to the LTE wireless communication system base station in claim 1, wherein: the fan-shaped symmetrical oscillator metal patches (32, 33) are composed of two identical metal patches arranged on the upper surface of the dielectric substrate (1), the fan-shaped symmetrical oscillator metal patches (31, 34) are composed of two identical metal patches arranged on the lower surface of the dielectric substrate (1), the directions of the fan-shaped metal patches (31, 32, 33, 34) are consistent, and the distances between the fan-shaped metal patches are equal.
3. The broadband dual-polarized antenna applied to the LTE wireless communication system base station in claim 1, wherein: the SMA joints (71, 72) are connected with the lower surfaces of the artificial magnetic conductors (2, 5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458476.6A CN114142226A (en) | 2021-12-02 | 2021-12-02 | Broadband dual-polarized antenna applied to LTE wireless communication system base station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458476.6A CN114142226A (en) | 2021-12-02 | 2021-12-02 | Broadband dual-polarized antenna applied to LTE wireless communication system base station |
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| CN114142226A true CN114142226A (en) | 2022-03-04 |
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| CN202111458476.6A Pending CN114142226A (en) | 2021-12-02 | 2021-12-02 | Broadband dual-polarized antenna applied to LTE wireless communication system base station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117650361A (en) * | 2023-10-30 | 2024-03-05 | 广东工业大学 | Broadband low-profile small circularly polarized antenna and wireless communication device |
| CN117650361B (en) * | 2023-10-30 | 2024-05-31 | 广东工业大学 | Broadband low-profile small circularly polarized antenna and wireless communication device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229669A (en) * | 2016-09-30 | 2016-12-14 | 武汉虹信通信技术有限责任公司 | A kind of low section wideband dual polarized a period of time |
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2021
- 2021-12-02 CN CN202111458476.6A patent/CN114142226A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229669A (en) * | 2016-09-30 | 2016-12-14 | 武汉虹信通信技术有限责任公司 | A kind of low section wideband dual polarized a period of time |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117650361A (en) * | 2023-10-30 | 2024-03-05 | 广东工业大学 | Broadband low-profile small circularly polarized antenna and wireless communication device |
| CN117650361B (en) * | 2023-10-30 | 2024-05-31 | 广东工业大学 | Broadband low-profile small circularly polarized antenna and wireless communication device |
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