CN211376923U - Broadband magnetoelectric dipole antenna structure - Google Patents
Broadband magnetoelectric dipole antenna structure Download PDFInfo
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- CN211376923U CN211376923U CN201921996895.3U CN201921996895U CN211376923U CN 211376923 U CN211376923 U CN 211376923U CN 201921996895 U CN201921996895 U CN 201921996895U CN 211376923 U CN211376923 U CN 211376923U
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Abstract
The embodiment of the application discloses broadband magnetoelectric dipole antenna structure relates to wireless communication technical field, specifically is a broadband magnetoelectric dipole antenna structure, including the electric dipole, the bottom fixedly connected with magnetic dipole of electric dipole, electric dipole and magnetic dipole are the quadrature and place, constitute 45 dual polarized antenna, the right side of electric dipole is provided with the antenna feeder. According to the broadband magnetoelectric dipole antenna structure, a traditional rectangular horizontal electric dipole is changed into an octagonal gradual change structure, meanwhile, widening of the bandwidth of an antenna is realized by improving a traditional r-type feeder line strip, the relative bandwidth coverage of 79.1% (the standing-wave ratio is less than 1.5) is 1.56GHz-3.6GHz, the antenna gain fluctuates between 7.6dBi-10.9dBi, meanwhile, a rectangular reflecting plate is adopted to keep good directional diagram and front-to-back ratio indexes, the requirement of the second-generation, third-generation and fourth-generation communication systems for the antenna at present is met, and the broadband magnetoelectric dipole antenna structure is suitable for a mobile base station antenna.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a broadband magnetoelectric dipole antenna structure.
Background
The mobile communication industry has entered a rapid development stage, which means that the antenna playing an important role in the mobile communication system has also entered an era of high-speed development, with the popularization and application of the fourth generation mobile communication system, the calibration and release of the frequency of the fifth generation communication system, and the requirement of the communication system for the antenna has also risen, because different communication systems occupy different frequency resources and different requirements for the design of the antenna, in order to receive information of different frequency bands, a plurality of base station antennas are required to be installed for use, so that the number of antennas used is increased undoubtedly, and the cost of corresponding antenna design and processing is also increased accordingly, therefore, designing an antenna capable of meeting the frequency requirement of the same communication system has become a focus of attention of numerous scholars, and by widening the bandwidth of the antenna, it is a method for effectively solving the problem to cover the frequency bands of different communication systems, to this end we provide a broadband magnetoelectric dipole antenna structure.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present application provides a broadband magnetoelectric dipole antenna structure to improve the above problems.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a broadband magnetoelectric dipole antenna structure comprises an electric dipole, wherein a magnetic dipole is fixedly connected to the bottom of the electric dipole, the electric dipole and the magnetic dipole are orthogonally arranged to form a +/-45-degree dual-polarized antenna, an antenna feeder line is arranged on the right side of the electric dipole, a coaxial line is fixedly connected to the bottom of the antenna feeder line, and a rectangular reflecting plate is arranged outside the electric dipole.
Optionally, the electric dipole is composed of an octagonal FR4 substrate, the thickness of the substrate is 0.8 mm, and the single side of the substrate is coated with copper, and the coated copper side faces upward.
Optionally, the magnetic dipole is formed by a rectangular FR4 substrate with a thickness of 1.6 mm, a single surface of the substrate is coated with copper, the coated copper surface faces inwards, the magnetic dipole is perpendicular to the electric dipole, the width of the magnetic dipole is equal to the short side of the electric dipole, the height of the magnetic dipole is 33 mm, and the distance between two opposite magnetic dipoles is 8.3 mm.
Optionally, the antenna feeder line includes an H-type microstrip and an r-type microstrip, the H-type microstrip and the r-type microstrip are placed in a cross shape, the H-type microstrip is in an H shape, the r-type microstrip is in an r shape, transmission portions of the H-type microstrip and the r-type microstrip are both in a gradually-changed structure that the width is changed from bottom to top, protruding portions on two sides of the H-type microstrip are flush with the electric dipole, and a horizontal coupling portion of the r-type microstrip is flush with the electric dipole.
Optionally, the rectangular reflector is shaped as a rectangular uncovered box, the rectangular reflector is made of a metal material, and the size of the rectangular reflector is 135 mm by 27 mm.
The application provides a pair of broadband magnetoelectric dipole antenna structure possesses following beneficial effect:
1. according to the broadband magnetoelectric dipole antenna structure, a traditional rectangular horizontal electric dipole is changed into an octagonal gradual change structure, meanwhile, widening of the bandwidth of an antenna is realized by improving a traditional r-type feeder line strip, the relative bandwidth coverage of 79.1% (the standing-wave ratio is less than 1.5) is 1.56GHz-3.6GHz, the antenna gain fluctuates between 7.6dB i and 10.9dBi, meanwhile, a rectangular reflecting plate is adopted to keep good directional diagram and front-to-back ratio indexes, the requirement of the second-generation, third-generation and fourth-generation communication systems for the antenna at present is met, and the broadband magnetoelectric dipole antenna structure is suitable for a mobile base station antenna.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a structure of a broadband magnetoelectric dipole antenna proposed in an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a back structure of a broadband magnetoelectric dipole antenna structure according to an embodiment of the present application;
fig. 3 shows a schematic diagram of an antenna feed line of a wideband magnetoelectric dipole antenna structure proposed in an embodiment of the present application.
In the figure: 1. an electric dipole; 2. a magnetic dipole; 3. an antenna feed line; 31. an H-shaped microstrip; 32. r-type micro-tape; 4. a coaxial line; 5. a rectangular reflector plate.
Detailed Description
The technical solutions in 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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a broadband magnetoelectric dipole antenna structure, includes electric dipole 1, and electric dipole 1's bottom fixedly connected with magnetic dipole 2, electric dipole 1 and magnetic dipole 2 are the quadrature and place, constitute 45 dual polarized antenna, and electric dipole 1's right side is provided with antenna feeder 3, and antenna feeder 3's bottom fixedly connected with coaxial line 4, electric dipole 1's outside is provided with rectangle reflecting plate 5.
The electric dipole 1 is made of an FR4 substrate, the metal sheet material of the traditional magnetoelectric dipole is eliminated, the octagonal electric dipole 1 realizes widening of the bandwidth of an antenna, and the performance of the antenna is improved.
The magnetic dipole 2 is formed by a rectangular FR4 substrate with the thickness of 1.6 mm, the single surface of the substrate is coated with copper, the copper-coated surface faces inwards, the magnetic dipole 2 is perpendicular to the electric dipole 1, the width of the magnetic dipole 2 is equal to the short edge of the electric dipole 1, the height of the magnetic dipole 2 is 33 mm, the distance between the two opposite magnetic dipoles 2 is 8.3 mm, the magnetic dipole 2 and the electric dipole 1 are orthogonally arranged to form +/-45-degree dual polarization, the dual-polarization antenna has strong anti-interference capability, can effectively resist multipath fading, can improve the sensitivity of a system and the like.
The antenna feeder line 3 comprises an H-shaped microstrip strip 31 and an r-shaped microstrip strip 32, the H-shaped microstrip strip 31 and the r-shaped microstrip strip 32 are placed in a cross shape, the H-shaped microstrip strip 31 is in an H shape, the r-shaped microstrip strip 32 is in an r shape, transmission parts of the H-shaped microstrip strip 31 and the r-shaped microstrip strip 32 are in a gradually-changed structure which is narrowed from bottom to top, protruding parts on two sides of the H-shaped microstrip strip 31 are flush with an electric dipole 1, and a horizontal coupling part of the r-shaped microstrip strip 32 is flush with the electric dipole 1.
The rectangular reflecting plate 5 is a rectangular uncovered box, the rectangular reflecting plate 5 is made of metal materials, the size of the rectangular reflecting plate 5 is 135 mm x 27 mm, the rectangular reflecting plate 5 with the enclosing wall is arranged, the problem that the gain and the directional diagram of the high-frequency part of the antenna are rapidly deteriorated due to the fact that the antenna coverage frequency range is relatively wide is solved, and stable gain and good directional diagram indexes are kept in the working bandwidth.
To sum up, the broadband magnetoelectric dipole antenna structure that this application provided, when using, with two pairs of electric dipoles 1 and the 2 quadrature of magnetic dipole place, constitute 45 double polarization, adopt improved generation antenna feeder 3 to encourage simultaneously, adopt coaxial line 4 that has the enclosure, realize gain and good directional diagram index that remain stable in the operating bandwidth can.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (5)
1. The broadband magnetoelectric dipole antenna structure is characterized by comprising an electric dipole (1), wherein the bottom of the electric dipole (1) is fixedly connected with a magnetic dipole (2), the electric dipole (1) and the magnetic dipole (2) are orthogonally arranged to form a +/-45-degree dual-polarized antenna, an antenna feeder (3) is arranged on the right side of the electric dipole (1), a coaxial line (4) is fixedly connected to the bottom of the antenna feeder (3), and a rectangular reflecting plate (5) is arranged outside the electric dipole (1).
2. A wideband magnetoelectric dipole antenna structure according to claim 1, characterized in that: the electric dipole (1) is composed of an octagonal FR4 substrate, the thickness of the substrate is 0.8 mm, the single surface of the substrate is coated with copper, and the surface coated with copper faces upwards.
3. A wideband magnetoelectric dipole antenna structure according to claim 1, characterized in that: the magnetic dipole (2) is formed by a rectangular FR4 substrate with the thickness of 1.6 mm, the single surface of the substrate is coated with copper, the copper-coated surface faces inwards, the magnetic dipole (2) is perpendicular to the electric dipole (1), the width of the magnetic dipole is equal to the short side of the electric dipole (1), the height of the magnetic dipole (2) is 33 mm, and the distance between two opposite magnetic dipoles (2) is 8.3 mm.
4. A wideband magnetoelectric dipole antenna structure according to claim 1, characterized in that: the antenna feeder line (3) comprises an H-shaped microstrip strip (31) and an r-shaped microstrip strip (32), the H-shaped microstrip strip (31) and the r-shaped microstrip strip (32) are placed in a cross shape, the H-shaped microstrip strip (31) is H-shaped, the r-shaped microstrip strip (32) is r-shaped, transmission parts of the H-shaped microstrip strip (31) and the r-shaped microstrip strip (32) are of a gradually-changed structure which is narrowed from bottom to top, protruding parts on two sides of the H-shaped microstrip strip (31) are flush with an electric dipole (1), and a horizontal coupling part of the r-shaped microstrip strip (32) is flush with the electric dipole (1).
5. A wideband magnetoelectric dipole antenna structure according to claim 1, characterized in that: the rectangular reflecting plate (5) is in the shape of a rectangular uncovered box, the rectangular reflecting plate (5) is made of metal materials, and the size of the rectangular reflecting plate (5) is 135 mm x 27 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921996895.3U CN211376923U (en) | 2019-11-19 | 2019-11-19 | Broadband magnetoelectric dipole antenna structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921996895.3U CN211376923U (en) | 2019-11-19 | 2019-11-19 | Broadband magnetoelectric dipole antenna structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164870A (en) * | 2020-09-27 | 2021-01-01 | 重庆大学 | Edge-emitting Huygens source binary antenna array |
| CN113410654A (en) * | 2021-08-02 | 2021-09-17 | 深圳市中天迅通信技术股份有限公司 | Dual-frequency high-gain dual-polarized antenna |
-
2019
- 2019-11-19 CN CN201921996895.3U patent/CN211376923U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164870A (en) * | 2020-09-27 | 2021-01-01 | 重庆大学 | Edge-emitting Huygens source binary antenna array |
| CN113410654A (en) * | 2021-08-02 | 2021-09-17 | 深圳市中天迅通信技术股份有限公司 | Dual-frequency high-gain dual-polarized antenna |
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