CN111106438A - Columnar ultra-wideband honeycomb antenna - Google Patents
Columnar ultra-wideband honeycomb antenna Download PDFInfo
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- CN111106438A CN111106438A CN202010036011.0A CN202010036011A CN111106438A CN 111106438 A CN111106438 A CN 111106438A CN 202010036011 A CN202010036011 A CN 202010036011A CN 111106438 A CN111106438 A CN 111106438A
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- 239000002184 metal Substances 0.000 claims abstract description 131
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 230000001413 cellular effect Effects 0.000 claims abstract description 30
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 230000010267 cellular communication Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research 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
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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
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- 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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
-
- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
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Abstract
The invention is suitable for the technical field of antennas, and provides a columnar ultra-wideband cellular antenna which comprises a dielectric substrate, a radiation patch, a gradient strip-shaped metal strip and a coaxial feeder line. The radiation patch comprises a first part metal patch and a second part metal patch which are separated from each other and are of an open-loop structure. The second part of the metal patches are provided with groove lines, and the gradual change ribbon-shaped metal strips penetrate through the groove lines. One end of the gradual change ribbon-shaped metal strip is connected with the first part of the metal patch, and the other end of the gradual change ribbon-shaped metal strip is connected with the inner core of the coaxial feeder line. The slot line divides the second portion of the metal patch into two insulated regions, both connected to the outer conductor of the coaxial feed line. The invention adopts the structure of the gradually-changed strip-shaped metal strip, can greatly improve the working bandwidth of the antenna, the working frequency band of the antenna is 600MHz-8500MHz, and can cover all global mobile cellular communication frequency bands; can well meet the requirements of modern cellular communication systems.
Description
Technical Field
The invention belongs to the technical field of antennas, and particularly relates to a columnar ultra-wideband cellular antenna.
Background
With the development of wireless communication technology, limited spectrum resources become more tense, and the occurrence of ultra-wideband technology will greatly alleviate the situation of spectrum resource tension. The ultra-wideband technology has the advantages of low power consumption, wide working frequency band, large system capacity, high transmission rate, strong penetrating power, strong anti-multipath capability and the like, so that the ultra-wideband technology is widely applied to the civil field. The function of an antenna is to radiate or receive radio waves. It converts the conducted electromagnetic wave into free space radio wave (in transmitting system) or vice versa (in receiving system), so as to realize the transmission of radio signal between any two points. A common definition for ultra-wideband is a relative bandwidth of greater than 20%. The antenna is an indispensable part in an ultra-wideband communication system, and the performance of the antenna directly affects the performance of the communication system, so that the research and design of an ultra-wideband antenna with outstanding performance is of great significance.
Disclosure of Invention
The invention aims to provide a columnar ultra-wideband cellular antenna with outstanding performance.
The invention is realized in this way, a columnar ultra-wideband honeycomb antenna, which comprises a columnar dielectric substrate, a radiation patch arranged on the dielectric substrate, a gradient strip-shaped metal strip arranged on the dielectric substrate and a coaxial feeder line; the radiation patch comprises a first part of metal patch and a second part of metal patch which are separated from each other, the first part of metal patch and the second part of metal patch are both of an open-loop structure, spacing seams are formed in the first part of metal patch and the second part of metal patch, a slot line is further formed in the second part of metal patch, the slot line divides the second part of metal patch into two insulated areas, and the gradient strip-shaped metal strip penetrates through the slot line; one end of the gradually-changed strip-shaped metal strip is connected with the first part of the metal patches, the other end of the gradually-changed strip-shaped metal strip is connected with the inner core of the coaxial feeder line, and two areas of the second part of the metal patches are connected with the outer conductor of the coaxial feeder line.
Furthermore, one end of the gradual change ribbon-shaped metal strip, which is close to the first part of metal patches, is a small end, one end of the gradual change ribbon-shaped metal strip, which is close to the second part of metal patches, is a large end, and the width of the large end is greater than that of the small end.
Further, the first part of metal patches are gradually-changed open-loop metal sheets; the second part of metal patch is also a gradual-change open-loop metal sheet.
Further, the dielectric substrate is a solid or hollow PCB.
Further, the medium substrate is a flexible PCB which can be formed into a circular tube shape or a polygonal tube shape by bending.
Furthermore, the gradual change strip-shaped metal strip, the first part of metal patches and the second part of metal patches are all positioned on the outer side surface of the medium substrate; the gradient strip-shaped metal strip and the second part of metal patches jointly form a coplanar waveguide structure, wherein the second part of metal patches are the ground of the coplanar waveguide structure.
Further, the first part of metal patches and the second part of metal patches are respectively located on the same side or different sides of the dielectric substrate.
Furthermore, the cylindrical ultra-wideband cellular antenna further comprises a plastic shell, the dielectric substrate, the radiation patch and the gradually-changed strip-shaped metal strip are all located in the plastic shell, one end face of the plastic shell is a closed face, the other end face of the plastic shell is provided with an opening, and the coaxial feeder is close to the opening and extends out of the opening.
Further, the two regions of the second part of metal patches are connected with the outer conductor of the coaxial feed line on the side close to the coaxial feed line.
Further, the coaxial feed line penetrates through the medium substrate, an inner core of the coaxial feed line is connected with the gradient strip-shaped metal strip, and an outer conductor of the coaxial feed line is connected with two regions of the second part of the metal patches simultaneously.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a columnar ultra-wideband cellular antenna, which adopts a structure of a gradually-changed strip metal strip, can greatly improve the working bandwidth of the antenna, has a working frequency band of 600MHz-8500MHz, and can cover all global mobile cellular communication frequency bands (including 1G, 2G, 3G, 4G, 5G low frequency bands and even higher frequency ranges); can well meet the requirements of modern cellular communication systems.
Drawings
Fig. 1 is a schematic perspective view of a pillar-shaped ultra-wideband cellular antenna according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the cylindrical ultra-wideband cellular antenna shown in FIG. 1 with the outer casing removed;
fig. 3 is a schematic perspective view of another angle of the cylindrical ultra-wideband cellular antenna shown in fig. 2;
figure 4 is an exploded view of the cylindrical ultra-wideband cellular antenna of figure 2;
figure 5 is a schematic diagram of another exploded view of the cylindrical ultra-wideband cellular antenna of figure 2;
fig. 6 is a schematic view of a first part of metal patches and a second part of metal patches on the same side of a dielectric substrate according to a first embodiment of the present invention;
fig. 7 is a schematic diagram of a first part of metal patches and a second part of metal patches on different sides of a dielectric substrate according to a first embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of a cylindrical ultra-wideband cellular antenna with a solid dielectric substrate according to an embodiment of the present invention;
FIG. 9 is an enlarged view of area A of FIG. 8;
fig. 10 is a schematic perspective view of a pillar-shaped ultra-wideband cellular antenna according to a second embodiment of the present invention;
figure 11 is a schematic perspective view of another angle of the cylindrical ultra-wideband cellular antenna of figure 10;
figure 12 is an exploded view of the cylindrical ultra-wideband cellular antenna of figure 10;
figure 13 is a schematic diagram of another exploded view of the cylindrical ultra-wideband cellular antenna of figure 10;
fig. 14 is a schematic perspective view of a pillar-shaped ultra-wideband cellular antenna according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; they may be connected directly or indirectly through an intermediary, or they may be interconnected between two members, or they may be electrically connected between two members. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to make the present disclosure more clear, the present invention provides some embodiments of a cylindrical ultra-wideband cellular antenna. Generally, the antenna | S11| in engineering applications generally requires less than-6 dB, which is a normal standard, that is, the ultra-wideband in the present invention can normally operate in 600MHz-8500MHz under the condition of satisfying the requirement.
The first embodiment is as follows:
referring to fig. 1 to fig. 5, a pillar-shaped ultra-wideband cellular antenna provided in this embodiment is shown, which includes a pillar-shaped dielectric substrate 1, a radiation patch 2 disposed on the dielectric substrate 1, a tapered strip-shaped metal strip 3 disposed on the dielectric substrate 1, a coaxial feed line 4, and a plastic housing 5. The dielectric substrate 1, the radiation patch 2 and the gradient strip-shaped metal strip 3 are all positioned in a plastic shell 5, one end face of the plastic shell 5 is a closed face 51, the other end face of the plastic shell 5 is provided with an opening 52, and the coaxial feed line 5 is close to the opening 52 and extends out of the opening 52.
The radiation patch 2 includes a first metal patch 21 and a second metal patch 22 separated from each other, and in this embodiment, the first metal patch 21 and the second metal patch 22 are laid along the length direction of the dielectric substrate 1.
The first metal patch part 21 and the second metal patch part 22 are both of an open-loop structure, and are respectively provided with a spacing seam 211 and a spacing seam 221. The second metal patch 22 is provided with a slot line 220, the slot line 220 divides the second metal patch 22 into a first area 22a and a second area 22b, and the gradient ribbon-shaped metal strip 3 is inserted into the slot line 220. The position of the slot line 220 is opposite to the position of the spacing seam 221 of the second metal patch 22, and the first region 22a and the second region 22b are symmetrical with the spacing seam 221 as a center, that is, the first region 22a and the second region 22b are two metal patches with the same size and shape.
One end of the gradual change ribbon-shaped metal strip 3 is connected with the first part of the metal patches 21, and the other end is connected with the inner core 41 of the coaxial feeder 4; both the first regions 22a and the second regions 22b of the second partial metal patch 22 are connected to the outer conductor 42 of the coaxial feed line 4. Specifically, the end of the gradual change ribbon-shaped metal strip 3 close to the first metal patch part 21 is a small end 31, the end close to the second metal patch part 22 is a large end 32, and the width of the large end 32 is greater than that of the small end 31.
The gradual change strip-shaped metal strip 3 of the embodiment is strip-shaped, the unfolded shapes of the first part of metal patches 21 and the second part of metal patches 22 are rectangular, and the areas of the first part of metal patches and the second part of metal patches are the same; the first region 22a and the second region 22b of the second partial metal patch 22 are developed into two rectangles having the same area. The gradual change ribbon-shaped metal strip 3, the first partial metal patches 21 and the second partial metal patches 22 are laid on the outer periphery of the dielectric substrate 1. The gradual change ribbon-shaped metal strip 3 and the second part metal patch 21 jointly form a coplanar waveguide structure, wherein the second part metal patch 21 is the ground of the coplanar waveguide structure.
It is easy to understand that, referring to fig. 6, the first metal patch part 21 and the second metal patch part 22 may be located on the same side of the dielectric substrate 1, or may be located on different sides of the dielectric substrate 1 (as shown in fig. 7), that is, they are in a different-plane structure, and both can greatly increase the operating bandwidth of the antenna.
The dielectric substrate 1 is a hollow structure (as shown in fig. 1 to 5), and the dielectric substrate 1 is in a circular tube shape and is formed by bending a flexible PCB. It is to be understood that the dielectric substrate 1 may be a solid structure (as shown in fig. 8 and 9).
The first region 22a and the second region 22b of the second partial metal patch 22 are connected to the outer conductor 42 of the coaxial feed line 4 on the side close to the coaxial feed line 5. In practical applications, the coaxial feed line 4 may also be inserted into the dielectric substrate 1 (whether the dielectric substrate 1 is a hollow or solid structure, the inner core 41 of the coaxial feed line 4 is connected to the tapered strip-shaped metal strip 3, and the outer conductor 42 of the coaxial feed line 4 is connected to the first region 22a and the second region 22b of the second partial metal patch 22 at the same time, and as for the connection manner, the connection manner may be a direct connection, or an indirect connection through a wire or a conductor.
The columnar ultra-wideband cellular antenna provided by the embodiment adopts a structure of the gradually-changed strip-shaped metal strip 3, so that the working bandwidth of the antenna can be greatly improved, the working frequency band of the antenna is 600MHz-8500MHz, and all global mobile cellular communication frequency bands (including 1G, 2G, 3G, 4G and 5G low frequency bands, even higher frequency ranges) can be covered; can well meet the requirements of modern cellular communication systems.
Example two:
referring to fig. 10 to 13, a cylindrical ultra-wideband cellular antenna provided in the present embodiment is shown, except for the following contents, other technical solutions and technical effects of the present embodiment are the same as those of the first embodiment.
The first part of the metal patches 21 of this embodiment are arc-shaped gradually-changing open-loop metal sheets; the second metal patch 22 is also an arc-shaped gradually-changing open-loop metal sheet.
According to the columnar ultra-wideband cellular antenna provided by the embodiment, the first part of metal patches 21 are gradient strip-shaped metal strips, the second part of metal patches 22 are gradient metal sheet structures, and through combination of the first part of metal strips and the second part of metal patches, the working bandwidth of the antenna can be further improved on the basis of the first embodiment, the working frequency band of the antenna is 600MHz-8500MHz, and all global mobile cellular communication frequency bands (including 1G, 2G, 3G, 4G and 5G low frequency bands, even higher frequency ranges) can be covered; can well meet the requirements of modern cellular communication systems.
Example three:
referring to fig. 14, a cylindrical ultra-wideband cellular antenna provided in the present embodiment is shown, except for the following contents, other technical solutions and technical effects of the present embodiment are the same as those of the first embodiment.
The dielectric substrate 1 in this embodiment is in a square tube shape, but may be in other polygonal tube shapes, such as a pentagon shape, a rhombus shape, and the like.
Correspondingly, the shapes of the first partial metal patches 21 and the second partial metal patches 22 laid on the outer side surface of the dielectric substrate 1 are matched with the shape of the outer side surface of the dielectric substrate 1.
Therefore, the dielectric substrate 1 of the present invention is only required to be columnar, and the cross section thereof may be circular, oval, square or other irregular shapes; the inside of the dielectric substrate 1 may be hollow or solid. The specific shape of the first part of metal patches 21 and the second part of metal patches 22 after being flattened can be other polygonal shapes, special shapes and the like besides a rectangle, a gradually changing rectangle and a gradually changing arc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A columnar ultra-wideband honeycomb antenna is characterized by comprising a columnar dielectric substrate, a radiation patch arranged on the dielectric substrate, a gradient strip-shaped metal strip arranged on the dielectric substrate and a coaxial feeder line; the radiation patch comprises a first part of metal patch and a second part of metal patch which are separated from each other, the first part of metal patch and the second part of metal patch are both of an open-loop structure, spacing seams are formed in the first part of metal patch and the second part of metal patch, a slot line is further formed in the second part of metal patch, the slot line divides the second part of metal patch into two insulated areas, and the gradient strip-shaped metal strip penetrates through the slot line; one end of the gradually-changed strip-shaped metal strip is connected with the first part of the metal patches, the other end of the gradually-changed strip-shaped metal strip is connected with the inner core of the coaxial feeder line, and two areas of the second part of the metal patches are connected with the outer conductor of the coaxial feeder line.
2. The cylindrical ultra-wideband cellular antenna as claimed in claim 1, wherein the end of the tapered strip close to the first portion of metal patches is a small end, and the end close to the second portion of metal patches is a large end, and the width of the large end is greater than that of the small end.
3. The cylindrical ultra-wideband cellular antenna of claim 1, wherein the first portion of metal patches is a tapered open-loop metal sheet; the second part of metal patch is also a gradual-change open-loop metal sheet.
4. The cylindrical ultra-wideband cellular antenna as claimed in claim 1, wherein the dielectric substrate is a solid or hollow PCB board.
5. The cylindrical ultra-wideband cellular antenna as claimed in claim 1, wherein the dielectric substrate is a flexible PCB board which can be formed into a circular tube shape or a polygonal tube shape by bending.
6. The cylindrical ultra-wideband honeycomb antenna of any one of claims 1 to 5, wherein the tapered strip metal strip, the first portion of metal patches, and the second portion of metal patches are all located on an outer side of the dielectric substrate; the gradient strip-shaped metal strip and the second part of metal patches jointly form a coplanar waveguide structure, wherein the second part of metal patches are the ground of the coplanar waveguide structure.
7. The cylindrical ultra-wideband cellular antenna as claimed in any of claims 1 to 5, wherein the first and second partial metal patches are located on the same or different sides of the dielectric substrate.
8. The cylindrical ultra-wideband cellular antenna as claimed in any one of claims 1 to 5, further comprising a plastic casing, wherein the dielectric substrate, the radiating patch and the tapered strip metal strip are all located in the plastic casing, one end face of the plastic casing is a closed face, the other end face of the plastic casing has an opening, and the coaxial feed line is close to the opening and extends out of the opening.
9. The cylindrical ultra-wideband cellular antenna as claimed in any one of claims 1 to 5, wherein both regions of the second partial metal patch are connected to the outer conductor of the coaxial feed line near the sides of the coaxial feed line.
10. The cylindrical ultra-wideband cellular antenna as claimed in any one of claims 1 to 5, wherein the coaxial feed line is inserted into the dielectric substrate, the inner core of the coaxial feed line is connected to the tapered strip metal strip, and the outer conductor of the coaxial feed line is connected to both regions of the second partial metal patch at the same time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010036011.0A CN111106438A (en) | 2020-01-14 | 2020-01-14 | Columnar ultra-wideband honeycomb antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010036011.0A CN111106438A (en) | 2020-01-14 | 2020-01-14 | Columnar ultra-wideband honeycomb antenna |
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| CN111106438A true CN111106438A (en) | 2020-05-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821060A (en) * | 2021-02-05 | 2021-05-18 | 广州智讯通信系统有限公司 | Improved omnidirectional broadband rod-shaped antenna |
| CN112821059A (en) * | 2021-02-05 | 2021-05-18 | 广州智讯通信系统有限公司 | Broadband rod-shaped antenna |
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Cited By (2)
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| CN112821059A (en) * | 2021-02-05 | 2021-05-18 | 广州智讯通信系统有限公司 | Broadband rod-shaped antenna |
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