CN114914680A - Ultra-wideband miniaturized dual-polarized antenna radiation unit - Google Patents
Ultra-wideband miniaturized dual-polarized antenna radiation unit Download PDFInfo
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- CN114914680A CN114914680A CN202210679412.7A CN202210679412A CN114914680A CN 114914680 A CN114914680 A CN 114914680A CN 202210679412 A CN202210679412 A CN 202210679412A CN 114914680 A CN114914680 A CN 114914680A
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- 230000005855 radiation Effects 0.000 title claims abstract description 30
- 230000008878 coupling Effects 0.000 claims abstract description 30
- 238000010168 coupling process Methods 0.000 claims abstract description 30
- 238000005859 coupling reaction Methods 0.000 claims abstract description 30
- 230000010287 polarization Effects 0.000 claims abstract description 10
- 238000005530 etching Methods 0.000 claims abstract description 6
- 230000009977 dual effect Effects 0.000 claims description 11
- 241000219122 Cucurbita Species 0.000 claims 3
- 235000009852 Cucurbita pepo Nutrition 0.000 claims 3
- 235000009508 confectionery Nutrition 0.000 claims 3
- 238000002955 isolation Methods 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 6
- 238000003491 array Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses an ultra-wideband miniaturized dual-polarized antenna radiation unit, which comprises a support balun and a radiation unit, wherein the radiation unit comprises a substrate and two pairs of +/-45-degree polarization orthogonally arranged oscillator arms positioned on the upper surface of the substrate, each oscillator arm of the two pairs of oscillator arms adopts the same structure, each oscillator arm comprises a plurality of frame-shaped micro-strips connected in series and coupling micro-strips positioned on two sides of the frame-shaped micro-strips, and the plurality of frame-shaped micro-strips connected in series form a sugarcoated haw stick string structure. The oscillator arm is formed by etching a single-sided PCB, has a compact structure, can greatly reduce the size of the oscillator arm, further reduces the size of an antenna, has a main structure of a combination of a sugarcoated haw string structure and a coupling microstrip, enhances the isolation between polarization of +45 degrees and polarization of-45 degrees, and reduces mutual coupling between antenna arrays.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to an ultra-wideband miniaturized dual-polarized antenna radiation unit.
Background
Antennas are essential components in wireless communication systems. Its function is to radiate or receive radio waves. The transmission of radio signals between any two points is realized.
With the continuous progress of mobile communication technology, mobile communication enters the 5G era, and the current 5G communication also puts higher demands on the antenna performance of the mobile base station. The main body is as follows: the multi-band coverage realizes ultra-wideband, the antenna size is miniaturized and light, and the array antenna has high isolation, low mutual coupling and the like.
The 5G communication has the characteristics of low delay and high transmission rate. Array antennas are required to have a wide bandwidth of operation. In a traditional ultra-wideband antenna, a dual-frequency broadband realized by mixing high and low frequency oscillators is mostly used in a 3G +4G multi-frequency antenna. The array elements are fewer in number, sparse in distribution and less in interactive coupling influence. The conventional 5G ultra-wideband antenna is wide in frequency band, numerous in array elements, compact in distribution, high in mutual coupling, large in size and poor in isolation.
Disclosure of Invention
The invention provides an ultra-wideband miniaturized dual-polarized antenna radiation unit with high isolation, low mutual coupling and small size, and can realize 4G and 5G application scene coverage in the frequency range of 1710-2690 MHz.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a miniaturized dual polarization antenna radiation unit of ultra wide band, is including supporting balun and radiation element, the radiation element includes the base plate and is located the oscillator arm that two pairs of 45 degrees polarization quadrature settings of base plate upper surface, and every oscillator arm of two pairs of oscillator arms all adopts the same structure, and every oscillator arm includes a plurality of series connection's frame type microstrip and is located the coupling microstrip of frame type microstrip both sides, a plurality of series connection's frame type microstrip constitutes sugarcoated haw stick string structure.
Further, the radiating unit is made of a single-sided PCB circuit board through etching.
Preferably, the number of the frame-shaped microstrips is more than or equal to 2.
Furthermore, a certain gap is formed between the adjacent frame-shaped microstrips, a connecting microstrip is arranged in the middle of the gap and is used for electrically connecting the adjacent frame-shaped microstrips.
Preferably, the coupling micro-strips are symmetrically arranged on two sides of the sugarcoated haw stick string structure.
Furthermore, the length of the coupling microstrip is less than that of the sugarcoated haw stick string structure.
Furthermore, a certain gap is formed between the coupling microstrip and the sugarcoated haw stick string structure, and the width of the gap is less than that of the coupling microstrip.
Furthermore, a feed connection microstrip is arranged on each vibrator arm and is arranged at one end of each sugarcoated haw stick string structure close to the orthogonal centers of the two pairs of vibrator arms, and a plug-in hole is formed in the center of each feed connection microstrip and is used for plugging and supporting the balun.
Furthermore, the support balun is composed of two balun arms which are orthogonally arranged, two upper plug connectors are arranged on the upper side of each balun arm, two lower plug connectors are arranged on the lower upper side of each balun arm, a balun microstrip line is arranged on the front side of each balun arm, a balun land is arranged on the back side of each balun arm, the support balun is fixedly connected with the radiation unit through the upper plug connectors in an inserted mode, the support balun is fixedly connected with the balun seat through the lower plug connectors in an inserted mode, and the balun land is connected with the feed connection microstrip in a welded mode.
Furthermore, the radiation unit further comprises a reflecting plate which is of a U-shaped structure, and the radiation unit is fixed in the center of the reflecting plate through a support balun and a balun seat.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the oscillator arm is formed by etching a single-sided PCB, has a compact structure, can greatly reduce the size of the oscillator arm, further reduces the size of an antenna, has a main structure of a combination of a sugarcoated haw series structure and a coupling microstrip, enhances the isolation between polarization of +45 degrees and polarization of-45 degrees, and reduces mutual coupling between antenna arrays.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and as part of the present invention, the exemplary embodiments and the description thereof are used for explaining the present invention, but do not constitute a limitation to the present invention.
The drawings illustrate the following:
fig. 1 is a schematic perspective view of an ultra-wideband miniaturized dual-polarized antenna radiation unit according to the present invention;
fig. 2 is a structure diagram of the dipole arm of the ultra-wideband miniaturized dual-polarized antenna radiation unit of the present invention at ± 45 degrees;
fig. 3 is a schematic diagram of a dipole arm structure of an ultra-wideband miniaturized dual-polarized antenna radiation unit according to the present invention;
FIG. 4 is a schematic representation of a balun arm structure of the present invention;
wherein: 1. the antenna comprises a radiation unit, 2, a supporting balun, 3, a reflecting plate, 4, a balun seat, 5, a vibrator arm, 10, a substrate, 11, a sugarcoated haw string structure, 12, a coupling microstrip, 110, a frame-shaped microstrip, 111, a connecting microstrip, 112, a feed connecting microstrip, 113, a jack, 20, a balun arm, 21, an upper plug connector, 22, a lower plug connector, 23 and a balun ground.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments of the invention are only some, and not all, embodiments of the invention. Therefore, the following detailed description of the embodiments does not limit the scope of the present invention, but facilitates understanding of the present invention by those of ordinary skill in the art; all other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any inventive work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; unless explicitly defined otherwise.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other; for those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific embodiments in combination with the practical application.
As shown in fig. 1, the invention is an ultra-wideband miniaturized dual-polarized antenna radiation unit, which comprises a radiation unit 1, a supporting balun 2, a balun seat 4 and a reflecting plate 3. The radiation unit 1 is fixed above the support balun 2, the balun seat 4 is fixed below the support balun 2, and the radiation unit 1 is fixed in the central position in the reflecting plate 3 through the support balun 2 and the balun seat 4. The reflecting plate 3 is of a U-shaped structure, as shown in the figure, the whole structure formed by the radiation unit 1, the supporting balun 2 and the balun seat 4 is located in the U, and the reflecting plate provides guarantee for improving signal receiving sensitivity of the radiation unit located in the U. According to the invention, through the improvement of the dual-polarized antenna radiation unit, the overall size of the antenna is reduced, the isolation degree is improved, the mutual coupling is reduced, and the coverage of 4G and 5G application scenes in the 1710-2690 MHz frequency range is realized.
As shown in fig. 2 and fig. 3, the radiating unit 1 of the present invention includes a substrate and two pairs of ± 45 degree polarization orthogonally arranged dipole arms 5 located on the upper surface of the substrate, each dipole arm 5 of the two pairs of dipole arms adopts the same structure, each dipole arm 5 includes a plurality of frame-shaped microstrips 110 connected in series and coupling microstrips 12 located on two sides of the frame-shaped microstrips 110, and the plurality of frame-shaped microstrips 110 connected in series constitute a sugarcoated haws string structure 11.
As a preferred embodiment of the present invention, the radiating element 1 is made by etching a single-sided PCB circuit board.
For the present invention, the number of the frame-shaped micro-strips 110 is more than or equal to 2. In a preferred embodiment, the number of the frame-shaped microstrips 110 of the dipole arm 5 of the present invention is 4, and the number of the frame-shaped microstrips 110 and the size specification of the frame-shaped microstrips determine the lowest operating frequency of the dipole arm.
In a preferred embodiment of the present invention, a certain gap is formed between adjacent frame-shaped microstrips 110, a connection microstrip 111 is provided in the middle of the gap, and the connection microstrip 111 is used to electrically connect the adjacent frame-shaped microstrips 110. Referring to fig. 3, the length of the connecting microstrip 111 is less than the width (or length) of the frame-shaped microstrip 110, so that two adjacent frame-shaped microstrips 110 have a gap with the same width as the connecting microstrip at two sides of the connecting microstrip 111 besides the connecting microstrip electrically connecting the two frame-shaped microstrips, and the gap and the connecting microstrip are equivalent to an LC resonant circuit, which affects the depth of resonance.
For the invention, the coupling micro-strips 12 are symmetrically arranged at two sides of the sugarcoated haws string structure 11, and the length of the coupling micro-strips 12 is less than that of the sugarcoated haws string structure 11. A certain gap is formed between the coupling microstrip 12 and the sugarcoated haw stick string structure 11, and the width of the gap is less than that of the coupling microstrip 12. The coupling microstrip structure of the invention influences the resonance depth of the oscillator arm, and the gap influences the coupling degree.
In order to connect the oscillator arms 5 for feeding and transmit and receive signals, as a preferred embodiment of the present invention, the oscillator arms 5 are provided with feeding connection micro-strips 112, the feeding connection micro-strips 112 are disposed at one end of each sugarcoated haw stick string structure 11 close to the orthogonal center of the two pairs of oscillator arms and are electrically connected with the sugarcoated haw stick string structures 11, the center of the feeding connection micro-strips 112 is provided with a plug hole 113, and the plug hole 113 is used for plugging and supporting the balun 2.
As shown in fig. 3, the supporting balun 2 is composed of two balun arms 20 arranged orthogonally, two upper plug connectors 21 are arranged on the upper side of each balun arm 20, two lower plug connectors 22 are arranged on the lower side of each balun arm 20, a balun microstrip line is arranged on the front side of each balun arm 20, a balun land 23 is arranged on the back side of each balun arm 20, the supporting balun 2 is fixedly plugged with the radiation unit 1 through the upper plug connectors 21, the supporting balun 2 is fixedly plugged with the balun seat 4 through the lower plug connectors 22, and the balun land 23 is connected with the feed connection microstrip 112 in a welding manner. The support balun 2 plays a role in broadband impedance transformation, balancing surface current of the array sub-arm and supporting the array sub-arm.
For the invention, the support balun 2 is formed by etching a double-sided PCB, and the balun seat 4 can be made of a circuit board or a substrate made of other materials.
According to the invention, through the coupling gaps between the frame-shaped micro-strips of the sugarcoated haw stick string structure, the electric length of the equivalent LC resonance circuit is increased, the physical length is reduced, the size of the oscillator arm is reduced, the size of the whole antenna is further reduced by 12%, the mutual coupling among the array antenna units is reduced, and the isolation of the array antenna is improved.
The ultra-wideband miniaturized dual-polarized antenna radiation unit of the embodiment of the application is introduced in detail, a specific example is applied in the above to explain the principle and the implementation mode of the application, and the description of the above embodiment is only used for helping to understand the technical scheme and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The utility model provides an ultra wide band miniaturization dual polarization antenna radiating element which characterized in that: including supporting balun (2) and radiating element (1), radiating element (1) includes base plate (10) and is located oscillator arm (5) that two pairs of 45 degrees polarization quadrature settings of base plate (10) upper surface set up, and every oscillator arm (5) of two pairs of oscillator arms all adopt the same structure, and every oscillator arm (5) include frame type microstrip (110) of a plurality of series connection and are located coupling microstrip (12) of frame type microstrip (110) both sides, frame type microstrip of a plurality of series connection constitutes sugarcoated haw stick string structure (11).
2. An ultra-wideband miniaturized dual polarized antenna radiating element according to claim 1, characterized in that: the radiation unit (1) is made of a single-sided PCB circuit board through etching.
3. An ultra-wideband miniaturized dual polarized antenna radiating element according to claim 2, characterized in that: the number of the frame-shaped micro-strips (110) is more than or equal to 2.
4. An ultra-wideband miniaturized dual polarized antenna radiating element according to claim 3, characterized in that: a certain gap is formed between the adjacent frame-shaped micro-strips (110), a connecting micro-strip (111) is arranged in the middle part of the gap, and the connecting micro-strip (111) is used for electrically connecting the adjacent frame-shaped micro-strips (110).
5. An ultra-wideband miniaturized dual polarized antenna radiating element according to claim 4, characterized in that: the coupling micro-strips (12) are symmetrically arranged on two sides of the sugarcoated haw stick string structure (11).
6. An ultra-wideband miniaturized dual polarized antenna radiating element according to claim 5, characterized in that: the length of the coupling microstrip (12) is less than that of the sugarcoated haw stick string structure (11).
7. An ultra-wideband miniaturized dual polarized antenna radiating element according to claim 6, characterized in that: a certain gap is formed between the coupling microstrip (12) and the sugarcoated haw stick string structure (11), and the width of the gap is less than that of the coupling microstrip (12).
8. An ultra-wideband miniaturized dual polarized antenna radiating element according to claim 7, characterized in that: the candy gourd string structure is characterized in that feed connecting micro-strips (112) are arranged on the vibrator arms (5), the feed connecting micro-strips (112) are arranged at one end, close to the orthogonal centers of the two pairs of vibrator arms, of each candy gourd string structure (11) and are electrically connected with the candy gourd string structures (11), inserting holes (113) are formed in the centers of the feed connecting micro-strips (112), and the inserting holes (113) are used for inserting and supporting the balun (2).
9. An ultra-wideband miniaturized dual polarized antenna radiating element according to any of claims 1-8, characterized in that: the support balun (2) is composed of two balun arms (20) which are orthogonally arranged, two upper plug connectors (21) are arranged on the upper side of each balun arm (20), two lower plug connectors (22) are arranged on the lower side of each balun arm (20), a balun microstrip line is arranged on the front side of each balun arm, a balun land (23) is arranged on the back side of each balun arm, the support balun (2) is fixedly connected with the radiation unit (1) in an inserted mode through the upper plug connectors (21), the support balun (2) is fixedly connected with the balun seat (4) in an inserted mode through the lower plug connectors (22), and the balun land (23) is connected with the feed connection microstrip (112) in a welded mode.
10. An ultra-wideband miniaturized dual polarized antenna radiating element according to any of claims 1-8, characterized in that: the radiation unit is characterized by further comprising a reflecting plate (3), wherein the reflecting plate (3) is of a U-shaped structure, and the radiation unit (1) is fixed in the center position in the reflecting plate (3) through a support balun (2) and a balun seat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210679412.7A CN114914680A (en) | 2022-06-16 | 2022-06-16 | Ultra-wideband miniaturized dual-polarized antenna radiation unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210679412.7A CN114914680A (en) | 2022-06-16 | 2022-06-16 | Ultra-wideband miniaturized dual-polarized antenna radiation unit |
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| CN114914680A true CN114914680A (en) | 2022-08-16 |
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| CN202210679412.7A Pending CN114914680A (en) | 2022-06-16 | 2022-06-16 | Ultra-wideband miniaturized dual-polarized antenna radiation unit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733844A (en) * | 2015-03-21 | 2015-06-24 | 西安电子科技大学 | Planar-broadband dual-polarization base station antenna |
| KR20160080037A (en) * | 2014-12-29 | 2016-07-07 | 한국전자통신연구원 | High Gain Travelling Wave Antenna Not Requiring Impedance Matching Components |
| CN107317100A (en) * | 2017-05-18 | 2017-11-03 | 广州杰赛科技股份有限公司 | A kind of dual polarization antenna radiation unit and antenna assembly |
| CN113506981A (en) * | 2021-07-15 | 2021-10-15 | 广东工业大学 | Low-scattering antenna and multi-frequency antenna array thereof |
-
2022
- 2022-06-16 CN CN202210679412.7A patent/CN114914680A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160080037A (en) * | 2014-12-29 | 2016-07-07 | 한국전자통신연구원 | High Gain Travelling Wave Antenna Not Requiring Impedance Matching Components |
| CN104733844A (en) * | 2015-03-21 | 2015-06-24 | 西安电子科技大学 | Planar-broadband dual-polarization base station antenna |
| CN107317100A (en) * | 2017-05-18 | 2017-11-03 | 广州杰赛科技股份有限公司 | A kind of dual polarization antenna radiation unit and antenna assembly |
| CN113506981A (en) * | 2021-07-15 | 2021-10-15 | 广东工业大学 | Low-scattering antenna and multi-frequency antenna array thereof |
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