CN109103591B - Radiating element with space wave-transmitting characteristic - Google Patents
Radiating element with space wave-transmitting characteristic Download PDFInfo
- Publication number
- CN109103591B CN109103591B CN201810934969.4A CN201810934969A CN109103591B CN 109103591 B CN109103591 B CN 109103591B CN 201810934969 A CN201810934969 A CN 201810934969A CN 109103591 B CN109103591 B CN 109103591B
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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
-
- 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
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
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Abstract
A support frame is arranged below the radiating unit body, a support plate is arranged below the support frame, the radiating unit body comprises a dielectric substrate, and two half-wave vibrators are arranged on the upper surface and the lower surface of the dielectric substrate; a plurality of upper low-resistance wires and upper high-resistance wires which are connected with each other are arranged above each radiation arm of the radiation unit body; a plurality of lower low-resistance wires and lower high-resistance wires are arranged below each radiation arm of the radiation unit body, and the lower low-resistance wires are connected with the lower high-resistance wires at intervals; the upper low-resistance wire is connected with the upper resistance wire; the support frame is provided with a coupling feeder line, and the support plate is provided with two feeder ports. The radiation unit designed by the invention solves the problems of large mutual coupling or large occupied area of the multi-frequency multi-port antenna in the prior art, realizes the characteristic of ultra-wideband standing wave ratio, ensures that the high-frequency and low-frequency vibrators are arranged in an interweaved array in one antenna housing to realize multi-frequency design, and ensures that the whole antenna product is easier to realize miniaturization and light weight.
Description
Technical Field
The invention belongs to the technical field of antennas, and particularly relates to a radiation unit with a space wave-transmitting characteristic.
Background
With the rapid development of mobile communication technology, in the construction of base station antennas, an array antenna is often required to not only cover multiple frequency bands, but also support a system with multiple wireless systems. However, the base station has limited resources and huge construction cost, and the antenna integrating multiple frequency bands and multiple systems becomes necessary. Meanwhile, along with the limitation of the space for building the station, the miniaturization requirement becomes the development trend of the antenna, however, along with the widening of the frequency band, the size of the antenna is correspondingly increased, the installation is inconvenient, and the problem that the multi-frequency multi-port antenna is large in mutual coupling or large in occupied area exists in the prior art.
Therefore, there is a need to design a radiation unit with compact structure, wide frequency band and space wave transmission characteristics to solve the above problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a radiation unit with space wave transmission characteristics.
To achieve the above and other related objects, the present invention provides the following technical solutions: the radiating unit with the space wave transmission characteristic comprises a radiating unit body taking orthogonally arranged dipoles as a radiating surface, wherein a microstrip feed structure capable of carrying out coupling feed on the radiating unit body is arranged at the center position of each dipole, a support frame is vertically arranged below the radiating unit body, a support plate is vertically arranged below the support frame, the radiating unit body comprises a dielectric substrate, and two half-wave vibrators are respectively arranged on the upper surface and the lower surface of the dielectric substrate; a plurality of upper low-resistance wires and upper high-resistance wires which are connected with each other are arranged above each radiation arm of the radiation unit body; a plurality of lower low-resistance wires and lower high-resistance wires are arranged below each radiation arm of the radiation unit body, and the lower low-resistance wires are connected with the lower high-resistance wires at intervals; the upper low-resistance wire is connected with the upper resistance wire through a hole on the radiation arm; two mutually orthogonal coupling feeder lines are arranged on the supporting frame, and two feeder ports are arranged on the supporting plate.
The preferable technical scheme is as follows: the support frame includes two orthogonal setting's radiating element balun, be equipped with one on the radiating element balun respectively the coupling feeder, radiating element balun's upper end all is provided with two and goes up the card strip, radiating element balun's lower extreme all is provided with two and go down the card strip, radiating element body middle part be provided with go up the card slot that the card strip corresponds, the backup pad middle part be provided with four lower card slots that the card strip corresponds down, the support frame upper and lower extreme card respectively is established radiating element body, backup pad's middle part.
The preferable technical scheme is as follows: the balun of the radiating unit is rectangular or cylindrical, and the height of the balun of the radiating unit is lambda/5-lambda/4.
The preferable technical scheme is as follows: the distance between the radiation arms is adjustable.
The preferable technical scheme is as follows: the shape of the medium substrate is a clover shape, a ten-hexagon shape or a thirty-dodecagon shape.
The preferable technical scheme is as follows: the radiation arm is in the shape of phi, O or U.
The preferable technical scheme is as follows: the coupling feeder is a 'gamma' -shaped coupling line.
The preferable technical scheme is as follows: the vibrator is a low-frequency vibrator.
Due to the application of the technical scheme, compared with the prior art, the invention has the advantages that:
compared with the conventional broadband vibrators, the radiating unit designed by the invention has the characteristics of simple structure, light weight and the like, is easy to assemble and stable in performance, solves the problems of large mutual coupling or large occupied area of the multi-frequency multi-port antennas in the prior art, realizes the characteristic of ultra-broadband standing wave ratio, and enables the high-frequency vibrator and the low-frequency vibrator to be arranged in an interweaved array in one antenna housing to realize multi-frequency design, so that the whole antenna product is easier to realize miniaturization and light weight.
Drawings
FIG. 1 is a schematic view of the whole of the present invention.
FIG. 2 is an exploded view of the present invention.
Fig. 3 is a schematic front view of a radiating element body.
Fig. 4 is a schematic view of the back side of the radiating element body.
In the above figures, the radiating element body 1, the vibrator 2, the supporting frame 3, the dielectric substrate 4, the upper low-resistance wire 5, the upper high-resistance wire 6, the lower low-resistance wire 7, the lower high-resistance wire 8, the radiating arm 9, the coupling feeder 10, the feed port 11, the radiating element balun 12, the upper clamping strip 13, the lower clamping strip 14, the upper clamping groove 15, the lower clamping groove 16 and the supporting plate 17.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1-4. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Examples: as shown in fig. 1-4, a radiation unit with space wave transmission characteristics comprises a radiation unit body 1 with a symmetrical oscillator 2 which is orthogonally arranged as a radiation surface, wherein a microstrip feed structure capable of carrying out coupling feed on the radiation unit body 1 is arranged in the center of the oscillator 2, a support frame 3 is vertically arranged below the radiation unit body 1, a support plate 17 is vertically arranged below the support frame 3, the radiation unit body 1 comprises a dielectric substrate 4, and two half-wave oscillators 2 are respectively arranged on the upper surface and the lower surface of the dielectric substrate 4; a plurality of mutually connected upper low-resistance wires 5 and upper high-resistance wires 6 are arranged above each radiation arm 9 of the radiation unit body 1; a plurality of lower low-resistance wires 7 and lower high-resistance wires 8 are arranged below each radiation arm 9 of the radiation unit body 1, and the lower low-resistance wires 7 are connected with the lower high-resistance wires 8 at intervals; the upper low-resistance wire 5 is connected with the upper high-resistance wire through a hole on the radiation arm 9; two mutually orthogonal coupling feed lines 10 are arranged on the support frame 3, and two feed ports 11 are arranged on the support plate 17.
Note that: the radiating arm 9 refers to one of the leaves of the radiating element body 1, i.e. "clover", in fig. 1.
A plurality of mutually connected upper low-resistance wires 5 and upper high-resistance wires 6 are arranged above each radiation arm 9 of the radiation unit body 1, wherein a section of low-resistance wire is arranged between the two upper low-resistance wires 5 and can be mutually coupled with the front section and the rear section of upper low-resistance wires 5, so that the bandwidth of the radiation unit is widened; a plurality of lower low-resistance wires 7 and lower high-resistance wires 8 are arranged below each radiation arm 9 of the radiation unit body 1 and are connected at intervals, and the lower high-resistance wires 8 can improve the surface current of the high-frequency vibrator on the low-frequency radiation unit and reduce the mutual coupling between the high-frequency radiation unit and the low-frequency radiation unit.
The preferred embodiments are: as shown in fig. 2, the support 3 includes two orthogonally disposed radiation unit baluns 12, a coupling feeder 10 is disposed on each radiation unit balun 12, two upper clamping strips 13 are disposed at the upper ends of the radiation unit baluns 12, two lower clamping strips 14 are disposed at the lower ends of the radiation unit baluns 12, an upper clamping groove 15 corresponding to the upper clamping strips 13 is disposed in the middle of the radiation unit body 1, four lower clamping grooves 16 corresponding to the lower clamping strips 14 are disposed in the middle of the support 17, and the upper and lower ends of the support 3 are respectively clamped in the middle of the radiation unit body 1 and the support 17.
The upper vibrator and the lower vibrator 2 respectively realize external feed through two mutually orthogonal coupling feed lines 10, and the effect of the external feed is that the high-resistance wire can inhibit the surface current of the high-frequency vibrator on the low-frequency radiating unit, and reduce the mutual coupling between the high-frequency radiating unit and the low-frequency radiating unit, thereby achieving wave transmission effect, minimizing the influence between the high-frequency radiating unit body 1, and the low-resistance wire can expand the bandwidth of the radiating unit, so that the performance of the radiating unit is optimal at 670-970 MHz.
The preferred embodiments are: the radiating element balun 12 is rectangular or cylindrical, and the height of the radiating element balun 12 is lambda/5-lambda/4. Wherein lambda is the wavelength corresponding to the center frequency of the radiating element, and the balun of the rectangular or cylindrical radiating element is convenient to process and has good stability.
The preferred embodiments are: the spacing between the radiating arms 9 is adjustable. The main lobe half power angle of the antenna can be flexibly adjusted by adjusting the distance between the two radiating arms 9, and the purpose of adjusting the beam width can be achieved, so that the dual-polarized antenna unit has higher directivity under the same half power angle.
The preferred embodiments are: the shape of the dielectric substrate 4 is a clover shape, a dodecagonal shape or a thirty-two sided shape. The four-leaf grass has attractive shape, small occupied space, convenient processing of a dodecagon shape and a thirty-twelve-sided shape, good stability, wide application range and the like, and can select medium substrates with different shapes according to different arrangement and array spaces.
The preferred embodiments are: the radiation arm 9 has a shape of "Φ", "O", "L" or "U". The method is applicable to dielectric substrates with different shapes, and space on the dielectric substrates is reasonably utilized.
The preferred embodiments are: the coupling feeder 10 is a "f" type coupling line. Is convenient to connect and ensures the structural stability.
The oscillator 2 of the invention adopts a low-frequency oscillator which has wave-transmitting characteristic, can reduce the mutual coupling influence between the high-frequency oscillator and the low-frequency oscillator when being arranged in an interlaced mode, and can keep good isolation performance; that is, the high-frequency vibrator and the low-frequency vibrator have the advantages of small size and good isolation performance during the array.
In actual processing, the radiation unit can be processed by adopting a mature printed circuit process or a die casting process, and also can be processed by adopting processes such as sheet metal, stamping, die casting, 3D printing, LDS and the like, and products with high mechanical strength, high processing precision and low cost can be processed more easily due to diversified selection of processing modes.
Compared with the conventional broadband vibrators, the radiating unit designed by the invention has the characteristics of simple structure, light weight and the like, is easy to assemble and stable in performance, solves the problems of large mutual coupling or large occupied area of the multi-frequency multi-port antennas in the prior art, realizes the characteristic of ultra-broadband standing wave ratio, and enables the high-frequency vibrator and the low-frequency vibrator to be arranged in an interweaved array in one antenna housing to realize multi-frequency design, so that the whole antenna product is easier to realize miniaturization and light weight.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. A radiating element having a spatially transparent characteristic, characterized in that: the radiating unit comprises a radiating unit body taking orthogonally arranged dipoles as a radiating surface, wherein a microstrip feed structure capable of carrying out coupling feed on the radiating unit body is arranged at the center position of the dipoles, a support frame is vertically arranged below the radiating unit body, a support plate is vertically arranged below the support frame, the radiating unit body comprises a dielectric substrate, and two half-wave vibrators are arranged on the upper surface and the lower surface of the dielectric substrate; a plurality of upper low-resistance wires and upper high-resistance wires which are connected with each other are arranged above each radiation arm of the radiation unit body; a plurality of lower low-resistance wires and lower high-resistance wires are arranged below each radiation arm of the radiation unit body, and the lower low-resistance wires are connected with the lower high-resistance wires in a staggered manner; the upper low-resistance wire is connected with the upper high-resistance wire; the support frame is provided with two mutually orthogonal coupling feed lines, the support plate is provided with two feed ports, and the oscillator is a low-frequency oscillator.
2. A radiation unit with spatial wave-transparent properties according to claim 1, characterized in that: the support frame includes two orthogonal setting's radiating element balun, be equipped with one on the radiating element balun respectively the coupling feeder, radiating element balun's upper end all is provided with two and goes up the card strip, radiating element balun's lower extreme all is provided with two and go down the card strip, radiating element body middle part be provided with go up the card slot that the card strip corresponds, the backup pad middle part be provided with four lower card slots that the card strip corresponds down, the support frame upper and lower extreme card respectively is established radiating element body, backup pad's middle part.
3. A radiation unit with spatial wave-transparent properties according to claim 2, characterized in that: the balun of the radiating unit is rectangular or cylindrical, and the height of the balun of the radiating unit is lambda/5-lambda/4.
4. A radiation unit with spatial wave-transparent properties according to claim 1, characterized in that: the distance between the radiation arms is adjustable.
5. A radiation unit with spatial wave-transparent properties according to claim 1, characterized in that: the shape of the medium substrate is a clover shape, a ten-hexagon shape or a thirty-dodecagon shape.
6. A radiation unit with spatial wave-transparent properties according to claim 1, characterized in that: the radiation arm is in the shape of phi, O or U.
7. A radiation unit with spatial wave-transparent properties according to claim 1, characterized in that: the coupling feeder is a 'gamma' -shaped coupling line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934969.4A CN109103591B (en) | 2018-08-16 | 2018-08-16 | Radiating element with space wave-transmitting characteristic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934969.4A CN109103591B (en) | 2018-08-16 | 2018-08-16 | Radiating element with space wave-transmitting characteristic |
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| CN109103591A CN109103591A (en) | 2018-12-28 |
| CN109103591B true CN109103591B (en) | 2023-09-22 |
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| CN201810934969.4A Active CN109103591B (en) | 2018-08-16 | 2018-08-16 | Radiating element with space wave-transmitting characteristic |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459867A (en) * | 2019-08-13 | 2019-11-15 | 昆山恩电开通信设备有限公司 | A kind of ultra wide band low frequency radiating element with inhibition high-frequency parasitic radiation function |
| CN112531323A (en) * | 2019-09-19 | 2021-03-19 | 比亚迪股份有限公司 | Antenna |
| CN114374082A (en) * | 2020-10-15 | 2022-04-19 | 康普技术有限责任公司 | Radiating element and base station antenna |
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