CN209913031U - Single-polarized antenna - Google Patents
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- CN209913031U CN209913031U CN201920852519.0U CN201920852519U CN209913031U CN 209913031 U CN209913031 U CN 209913031U CN 201920852519 U CN201920852519 U CN 201920852519U CN 209913031 U CN209913031 U CN 209913031U
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Abstract
The embodiment of the utility model discloses single polarization antenna. Wherein, single polarization antenna includes: a power divider and a Vivaldi vibrator array; the Vivaldi vibrator array comprises a plurality of Vivaldi vibrator units which are uniformly distributed along the circumferential direction; the power divider comprises a plurality of output ports which are in one-to-one correspondence with the Vivaldi oscillator units, and the output ports of the power divider are in one-to-one correspondence coupling connection with the Vivaldi oscillator units. The embodiment of the utility model provides a single polarization antenna can realize covering the bandwidth and narrower, the better miniaturized antenna of omnidirectional ability.
Description
Technical Field
The embodiment of the utility model provides a relate to antenna technical field, especially relate to a single polarization antenna.
Background
With the arrival of the fifth-Generation mobile communication technology (5th-Generation, 5G) era, data requests are getting larger, the bandwidth of a communication system in the 3G/4G (third/fourth-Generation mobile communication) era cannot meet future communication requirements, the system needs a higher bandwidth, and accordingly, the bandwidth of various antennas also needs to be widened, the Wireless Fidelity (WiFi) coverage needs to be popularized in various occasions, in order to save resources and reduce network installation difficulty, multiple operators share a network, so that the system needs a wider frequency band, and meanwhile, for the later system expansion, a network builder also wants to include the WiFi coverage in a set of network system, so that the operators urgently need an ultra-wideband antenna.
At present, the coverage bandwidth of the antenna in the market is mostly 698-. It generally has the following problems: firstly, the coverage bandwidth is narrow, and the requirement of ultra wide band cannot be met; in addition, because of the limitation of the traditional design principle, the size of the product is large, and even if the product can be made to be small, the product performance is sacrificed, and the omnidirectional characteristic of the product is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a single polarization antenna to realize the miniaturized antenna that the coverage bandwidth is narrower, omnidirectional performance is better.
The embodiment of the utility model provides a single polarization antenna, include: a power divider and a Vivaldi vibrator array;
the Vivaldi vibrator array comprises a plurality of Vivaldi vibrator units which are uniformly distributed along the circumferential direction;
the power divider comprises a plurality of output ports which are in one-to-one correspondence with the Vivaldi oscillator units, and the output ports of the power divider are in one-to-one correspondence coupling connection with the Vivaldi oscillator units.
Optionally, the single-polarized antenna further includes: a first substrate; the Vivaldi oscillator array is arranged on one side of the first substrate; the power divider is arranged on one side, far away from the Vivaldi oscillator array, of the first substrate.
Optionally, the single-polarized antenna further includes: a second substrate and a third substrate; the second substrate and the third substrate are fixedly connected; the Vivaldi oscillator array is arranged on the second substrate; the power divider is disposed on the third substrate.
Optionally, the Vivaldi oscillator array is disposed on one side of the second substrate close to the third substrate; the power divider is arranged on one side of the third substrate far away from the second substrate.
Optionally, the Vivaldi oscillator array is disposed on a side of the second substrate away from the third substrate; the power divider is arranged on one side of the third substrate far away from the second substrate.
Optionally, the Vivaldi dipole unit includes: etching a resonant cavity formed by the metal layer and a radiation area communicated with the resonant cavity; the radiation area is formed by encircling an index gradual change slotline and a rectangular slotline.
Optionally, the resonant cavity is circular, elliptical or rectangular.
Optionally, a plurality of rectangular corrugated grooves are formed on the rectangular groove line of the Vivaldi dipole unit.
Optionally, the number of Vivaldi dipole elements is 8, 12 or 16.
Optionally, the single-polarized antenna further includes: a cable; the inner conductor of the cable penetrates through the Vivaldi oscillator array to be electrically connected with the power divider; the outer conductor of the cable is electrically connected with the Vivaldi oscillator array.
The embodiment of the utility model provides a single polarization antenna, divide the ware including Vivaldi oscillator unit matrix and for the merit that Vivaldi oscillator unit matrix provided the feed, wherein, Vivaldi oscillator unit matrix includes a plurality of Vivaldi oscillator units along circumferencial direction evenly distributed, the ware is divided to the merit includes a plurality of output ports, a plurality of output ports and Vivaldi oscillator unit one-to-one coupling connection, then the merit divides the ware to carry out the coupling feed through output port and Vivaldi oscillator unit, make Vivaldi oscillator unit can outwards radiate the signal of telecommunication. Because the Vivaldi oscillator units have the advantages of wide frequency band and small size, the single-polarized antenna can cover a wide bandwidth under a small size, the problem that the existing single-polarized antenna is narrow in coverage bandwidth is solved, and because the Vivaldi oscillator units are uniformly distributed along the circumferential direction, the Vivaldi oscillator array radiates uniform electric signals along the circumference, and has good omnidirectional characteristics.
Drawings
Fig. 1 is a schematic structural diagram of a single-polarized antenna according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of one side of a single-polarized antenna according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the other side of a single-polarized antenna according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a Vivaldi oscillator unit provided by the present invention;
fig. 5 is a schematic structural diagram of another Vivaldi oscillator unit provided by the present invention;
fig. 6 is an exploded view of another monopole antenna provided by an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another single-polarized antenna according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment of the utility model provides a single polarization antenna, this single polarization antenna includes:
a power divider and a Vivaldi vibrator array;
the Vivaldi vibrator array comprises a plurality of Vivaldi vibrator units which are uniformly distributed along the circumferential direction;
the power divider comprises a plurality of output ports which are in one-to-one correspondence with the Vivaldi oscillator units, and the output ports of the power divider are in one-to-one correspondence coupling connection with the Vivaldi oscillator units.
The embodiment of the utility model provides a single polarization antenna, divide the ware including Vivaldi oscillator unit matrix and for the merit that Vivaldi oscillator unit matrix provided the feed, wherein, Vivaldi oscillator unit matrix includes a plurality of Vivaldi oscillator units along circumferencial direction evenly distributed, the ware is divided to the merit includes a plurality of output ports, a plurality of output ports and Vivaldi oscillator unit one-to-one coupling connection, then the merit divides the ware to carry out the coupling feed through output port and Vivaldi oscillator unit, make Vivaldi oscillator unit can outwards radiate the signal of telecommunication. Because the Vivaldi oscillator units have the advantages of wide frequency band and small size, the single-polarized antenna can cover a wide bandwidth under a small size, the problem that the existing single-polarized antenna is narrow in coverage bandwidth is solved, and because the Vivaldi oscillator units are uniformly distributed along the circumferential direction, the Vivaldi oscillator array radiates uniform electric signals along the circumference, and has good omnidirectional characteristics.
Above is the core thought of the utility model, will combine the attached drawing in the embodiment of the utility model below, to the technical scheme in the embodiment of the utility model clearly, describe completely. Based on the embodiments in the present invention, under the premise that creative work is not done by ordinary skilled in the art, all other embodiments obtained all belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a single-polarized antenna provided in an embodiment of the present invention, the single-polarized antenna includes a power divider 12 and a Vivaldi oscillator array 11, the power divider 12 includes an input port 121 and a plurality of output ports 122, the power divider 12 accesses a current signal through the input port 121, and disperses the current signal to the plurality of output ports 122 through a feeder 123 for output. Optionally, the power divider 12 is an equal-power-distribution power divider, and can equally divide the circuit signal connected to the input port 121 into equal parts, the number of which is the same as that of the output ports 122, so that each output port 122 can output the same current signal. With reference to fig. 1, the Vivaldi oscillator array 11 includes a plurality of Vivaldi oscillator units corresponding to the output ports 122 one to one, and the plurality of Vivaldi oscillator units are uniformly distributed along the circumferential direction, so that the signals output by the output ports 122 can be uniformly radiated on the circumference, and the Vivaldi oscillator array has a good omnidirectional characteristic. Furthermore, the Vivaldi oscillator unit has a wide coverage bandwidth, and can realize a single-polarized antenna with miniaturization and ultra wide band. For example, the ultra-wideband single-polarized antenna provided by the embodiment can cover a bandwidth of 700-6000 MHz, can cover a mobile communication frequency band and frequency bands such as wimax, WiFi, GPS, BD, and the like, and multiple operators can share a network, thereby saving resources and reducing difficulty in network installation.
It should be noted that, in fig. 1, a solid line portion is a visible portion, and a dashed line portion is an invisible portion, in this embodiment, the Vivaldi oscillator units are coupled and connected to the corresponding output ports 122, the power divider 12 and the Vivaldi oscillator array 11 are fixedly disposed by an insulating layer, if the power divider 12 is visible at the present moment, the Vivaldi oscillator array 11 is an invisible structure, as shown in fig. 1, optionally, the insulating layer may be a substrate, and if the power divider 12 is located on one side of the substrate, the Vivaldi oscillator array 11 is located on the other side of the substrate, then the single-polarized antenna in this embodiment may be a flat disk-shaped structure, so that an ultra-thin single-polarized antenna is implemented, the occupied space is small, and the versatility is strong. Specifically, referring to fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of one side of a single-polarized antenna provided by an embodiment of the present invention, and fig. 3 is a schematic structural diagram of the other side of the single-polarized antenna provided by an embodiment of the present invention. As shown in fig. 2, a power divider 12 is disposed on one side of the substrate of the single-polarized antenna, a Vivaldi oscillator array 11 is disposed on the other side of the substrate of the single-polarized antenna, and a plurality of Vivaldi oscillator units 111 are arranged in a circumferential direction to form a petal-shaped structure as shown in fig. 3. The Vivaldi oscillator array 11 is formed by etching a whole layer of metal, that is, adjacent Vivaldi oscillator units 111 are connected with each other. Alternatively, the number of Vivaldi dipole elements 111 may be 8, 12 or 16. Of course, the number of Vivaldi resonator elements 111 may be an odd number such as 15 or 17, and even the number of Vivaldi resonator elements 111 may be three or more, so that the number of Vivaldi resonator elements 111 may be ensured to form a circle around the circumference, the Vivaldi resonator elements 111 may be uniformly distributed in the circumferential direction, and the larger the number of Vivaldi resonator elements 111 is, the higher the uniformity of radiation is, within the achievable number range.
Optionally, referring to fig. 4, fig. 4 is a schematic structural diagram of a Vivaldi dipole unit provided by the present invention, where the Vivaldi dipole unit 111 may include: a resonant cavity 112 formed by etching the metal layer, and a radiation region 113 communicating with the resonant cavity 112; the radiating area is surrounded by an exponentially graded slot line 114 and a rectangular slot line 116. Referring to fig. 1, it can be seen that in a direction perpendicular to the substrate, the output ports 122 are coupled to the resonant cavities 112 in a one-to-one correspondence manner, so that the output ports 122 feed the Vivaldi oscillator units 111, a feed signal resonates through the resonant cavities 112 and is amplified and radiated through the radiation region 113 to generate directional radiation, and the Vivaldi oscillator units 111 of the directional radiation surround the circumference for 360 degrees, so that the Vivaldi oscillator array 11 realizes omnidirectional radiation.
For the entire Vivaldi oscillator array 11, a hollow structure can be etched on the entire metal layer to form the resonant cavity 112 and the radiation region 113 of each Vivaldi oscillator unit 111, and the exponentially-graded slot line 114 and the rectangular slot line 116 are edges of the hollow-structure radiation region 113.
Alternatively, the resonant cavity 112 may be circular, elliptical, or rectangular. Fig. 4 only shows the structure of the resonant cavity 112 as a circle, and the resonant cavity 112 may also be an ellipse, a rectangle, or other regular or irregular shapes according to the user's needs.
Alternatively, referring to fig. 5, fig. 5 is a schematic structural diagram of another Vivaldi dipole unit provided by the present invention, wherein a plurality of rectangular corrugated grooves 115 are formed on the rectangular groove line 116 of the Vivaldi dipole unit 111. A plurality of rectangular corrugated grooves 115 may be etched on the edge of each Vivaldi dipole element 111, i.e., on the metal layer between two adjacent Vivaldi dipole elements 111. The slotting process for the rectangular slot line 116 of the Vivaldi dipole unit 111 has the following advantages: firstly, the current path can be prolonged, the generation of surface waves is inhibited, the lowest working frequency of the antenna is further reduced, and the working frequency range of the antenna is widened; second, higher harmonics can be suppressed, resulting in higher gain and narrower beams. In the embodiment, the rectangular corrugated groove 115 is etched, so that the bandwidth of the single-polarized antenna is widened, and the performance of the single-polarized antenna is optimized.
Optionally, with continued reference to fig. 1-3, the single-polarized antenna may further include: a first substrate 13; the Vivaldi oscillator array 11 is arranged on one side of the first substrate 13; the power divider 12 is disposed on a side of the first substrate 13 away from the Vivaldi oscillator array 11.
The single-polarized antenna may include one substrate, i.e., a first substrate 13, as shown in fig. 2 and 3, a Vivaldi oscillator group array 11 disposed at one side of the first substrate 13; the power divider 12 is disposed on a side of the first substrate 13 away from the Vivaldi oscillator array 11, and the Vivaldi oscillator array 11 and the power divider 12 are disposed on the same substrate, so as to reduce the overall thickness of the single-polarized antenna. At least one pair of positioning grooves 131 may be disposed at an edge of the first substrate 13 for fixing a position of the single-polarized antenna when the single-polarized antenna is mounted.
Alternatively, as shown in fig. 6 and 7, fig. 6 is an exploded view of another single-polarized antenna provided in the embodiment of the present invention, and fig. 7 is a schematic structural diagram of another single-polarized antenna provided in the embodiment of the present invention. The single-polarized antenna may further include: a second substrate 14 and a third substrate 15; the second substrate 14 and the third substrate 15 are fixedly connected; the Vivaldi oscillator array 11 is arranged on the second substrate 14; the power divider 12 is disposed on the third substrate 15.
The single-polarized antenna may further include two substrates: a second substrate 14 and a third substrate 15; the Vivaldi oscillator array 11 is arranged on the second substrate 14, the power divider 12 is arranged on the third substrate 15, and the Vivaldi oscillator array 11 and the power divider 12 are respectively arranged on different substrates, so that the power divider 12 and the Vivaldi oscillator array 11 can be respectively integrated and manufactured on the substrates, and finally the second substrate 14 and the third substrate 15 are fixedly assembled, and the manufacturing process is accelerated. Specifically, the second substrate 14 and the third substrate 15 may be screwed by a screw, or may be riveted by a rivet.
In addition, because the main factor influencing the broadband performance is the power divider 12, the required performance of the second substrate 14 where the power divider 12 is located is high, the manufacturing cost of the third substrate 15 is high, while the performance requirement of the Vivaldi oscillator array 11 on the second substrate 14 is relatively low, the second substrate 14 with low cost can be adopted, so that the production cost of the single-polarized antenna is saved, and further, the diameter of the third substrate 15 can be set smaller than that of the second substrate 14, so as to further reduce the substrate material cost of the single-polarized antenna. Alternatively, the first substrate 13, the second substrate 14, and the third substrate 15 may be PCB boards.
Alternatively, with continued reference to fig. 6 and 7, the Vivaldi oscillator array 11 is disposed on a side of the second substrate 14 close to the third substrate 15; the power divider 12 is disposed on a side of the third substrate 15 away from the second substrate 14.
The Vivaldi oscillator array 11 is arranged on one side of the second substrate 14 close to the third substrate 15, and the power divider 12 is arranged on one side of the third substrate 15 far away from the second substrate 14, so that only one third substrate 15 is arranged between the Vivaldi oscillator array 11 and the power divider 12, the coupling effect is good, and the radiation intensity of the electric signal is increased. Of course, the Vivaldi oscillator array 11 may also be disposed on a side of the second substrate 14 away from the third substrate 15, and the power divider 12 is disposed on a side of the third substrate 15 away from the second substrate 14, so that the second substrate 14 and the third substrate 15 are spaced between the Vivaldi oscillator array 11 and the power divider 12, and the disposition positions of the Vivaldi oscillator array 11 and the power divider 12 are not particularly limited in this embodiment.
Optionally, the single-polarized antenna may further include: cables (not shown in fig. 7); an inner conductor of the cable penetrates through the Vivaldi oscillator array 11 to be electrically connected with the power divider 12; the outer conductor and the Vivaldi oscillator of cable are connected with 11 electricity in battle array, and the cable makes single polarization antenna form signal transmission route, realizes the embodiment of the utility model provides a single polarization antenna of horizontal polarization, on the horizontal direction that is on a parallel with the base plate, the single polarization antenna radiation that this embodiment provided is even, the omnidirectional characteristic preferred.
When the single-polarized antenna only comprises the first substrate 13, the cable is connected to one side of the first substrate 13 where the Vivaldi oscillator group 11 is arranged, the outer conductor of the cable is directly and electrically connected to the metal layer at the center of the Vivaldi oscillator group 11, and the inner conductor of the cable passes through the first substrate 13 and is electrically connected to the input port of the power divider 12 at the other side of the first substrate 13.
When the single-polarization antenna comprises the second substrate 14 and the third substrate 15, the cable is connected from the side of the second substrate 14 away from the third substrate 15, the outer conductor of the cable passes through the second substrate 14 and is directly electrically connected with the metal layer at the center of the Vivaldi oscillator array 11, and the inner conductor of the cable passes through the second substrate 14 and the third substrate 15 and is electrically connected with the input port of the power divider 12 at the side of the third substrate 15 away from the second substrate 14.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A single-polarized antenna, comprising: a power divider and a Vivaldi vibrator array;
the Vivaldi vibrator array comprises a plurality of Vivaldi vibrator units which are uniformly distributed along the circumferential direction;
the power divider comprises a plurality of output ports which are in one-to-one correspondence with the Vivaldi oscillator units, and the output ports of the power divider are in one-to-one correspondence coupling connection with the Vivaldi oscillator units.
2. The single-polarized antenna of claim 1, further comprising: a first substrate;
the Vivaldi oscillator array is arranged on one side of the first substrate;
the power divider is arranged on one side, far away from the Vivaldi oscillator array, of the first substrate.
3. The single-polarized antenna of claim 1, further comprising: a second substrate and a third substrate; the second substrate and the third substrate are fixedly connected;
the Vivaldi oscillator array is arranged on the second substrate; the power divider is disposed on the third substrate.
4. The single-polarized antenna of claim 3,
the Vivaldi oscillator array is arranged on one side, close to the third substrate, of the second substrate; the power divider is arranged on one side of the third substrate far away from the second substrate.
5. The single-polarized antenna of claim 3,
the Vivaldi oscillator array is arranged on one side, far away from the third substrate, of the second substrate; the power divider is arranged on one side of the third substrate far away from the second substrate.
6. The single-polarized antenna of claim 1, wherein the Vivaldi element unit comprises: etching a resonant cavity formed by the metal layer and a radiation area communicated with the resonant cavity;
the radiation area is formed by encircling an index gradual change slotline and a rectangular slotline.
7. The single-polarized antenna of claim 6, wherein the resonant cavity is circular, elliptical, or rectangular.
8. The single-polarized antenna of claim 6,
and a plurality of rectangular corrugated grooves are formed on the rectangular groove lines of the Vivaldi oscillator units.
9. The single-polarized antenna of claim 1, wherein the number of Vivaldi element elements is 8, 12 or 16.
10. The single-polarized antenna of claim 1, further comprising: a cable;
the inner conductor of the cable penetrates through the Vivaldi oscillator array to be electrically connected with the power divider;
the outer conductor of the cable is electrically connected with the Vivaldi oscillator array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852519.0U CN209913031U (en) | 2019-06-06 | 2019-06-06 | Single-polarized antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852519.0U CN209913031U (en) | 2019-06-06 | 2019-06-06 | Single-polarized antenna |
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| CN209913031U true CN209913031U (en) | 2020-01-07 |
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| CN201920852519.0U Active CN209913031U (en) | 2019-06-06 | 2019-06-06 | Single-polarized antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2827309C1 (en) * | 2020-10-30 | 2024-09-24 | Хуавей Текнолоджиз Ко., Лтд. | Antenna, antenna module and electronic device |
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- 2019-06-06 CN CN201920852519.0U patent/CN209913031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2827309C1 (en) * | 2020-10-30 | 2024-09-24 | Хуавей Текнолоджиз Ко., Лтд. | Antenna, antenna module and electronic device |
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