CN112768912B - 1X 4 wave beam fixed traveling wave antenna - Google Patents
1X 4 wave beam fixed traveling wave antenna Download PDFInfo
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- CN112768912B CN112768912B CN202011595480.2A CN202011595480A CN112768912B CN 112768912 B CN112768912 B CN 112768912B CN 202011595480 A CN202011595480 A CN 202011595480A CN 112768912 B CN112768912 B CN 112768912B
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- metal plate
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- main feeder
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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Abstract
The invention provides a 1 x 4 wave beam fixed traveling wave antenna, which comprises an upper layer metal plate, a lower layer metal plate, a dielectric plate, a main feeder line, 4 branches and 4 radiation patches, wherein: the upper metal plate, the lower metal plate and the dielectric plate are all in a strip shape, the upper metal plate is attached to the upper surface of the dielectric plate, and the lower metal plate is attached to the lower surface of the dielectric plate; the dielectric slab is provided with a central layer, the central layer is internally provided with the main feeder, 4 branches and 4 radiation patches, the main feeder is arranged along the length direction of the dielectric slab, the 4 branches are connected with the main feeder, the 4 branches are arranged along the width direction of the dielectric slab, the 4 branches have length difference, and the 4 radiation patches are respectively connected with one branch. The invention realizes the fixed radiation characteristic of the wave beam through the length difference of the 4 branches, and meanwhile, the antenna of the invention has the advantages of easy integration and easy processing and can realize large bandwidth.
Description
Technical Field
The invention relates to the field of communication antennas, in particular to a 1 x 4 beam fixed traveling wave antenna.
Background
A beam fixed antenna is an antenna commonly used in wireless communication, which can radiate in a fixed direction, and can be used in satellite communication and point-to-point communication. Conventional antennas capable of achieving beam fixing have a series-fed array antenna. The partial leaky-wave antenna can also be regarded as a series-fed array antenna, but the beam dispersion condition exists, the beam dispersion is reduced, and the method for realizing the beam fixation comprises a coupled substrate integrated waveguide antenna, a metamaterial antenna, a super-surface antenna and the like, but the design of the antennas is complex.
Chinese patent publication No. CN107394381A, published 24/11/2017, discloses a stacked traveling wave antenna unit-based low-profile broadband circularly polarized array antenna, comprising: the antenna comprises a circularly polarized antenna unit formed by 3 sections of metal layers printed on two sides of a dielectric plate in an end-to-end manner and metallized through holes connected with 2 layers, a 2 x 2 antenna subarray formed by a metallized through hole cavity and 4 antenna units, a 16-path fully parallel feed network formed by metallized through holes, a gap for coupling feed between a feed layer and a metal cavity and between antennas, and a switching structure between a Grounded Coplanar Waveguide (GCPW) for testing and a Substrate Integrated Waveguide (SIW), but the design of the antenna is complex.
Disclosure of Invention
The invention provides a 1 x 4 wave beam fixed traveling wave antenna, which realizes wave beam fixation and has the advantages of easy integration and easy processing.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a1 x 4 wave beam fixed traveling wave antenna comprises an upper layer metal plate, a lower layer metal plate, a dielectric plate, a main feeder line, 4 branches and 4 radiation patches, wherein:
the upper metal plate, the lower metal plate and the dielectric plate are all in a strip shape, the upper metal plate is attached to the upper surface of the dielectric plate, and the lower metal plate is attached to the lower surface of the dielectric plate;
the dielectric slab is provided with a central layer, the central layer is internally provided with the main feeder, 4 branches and 4 radiation patches, the main feeder is arranged along the length direction of the dielectric slab, the 4 branches are connected with the main feeder, the 4 branches are arranged along the width direction of the dielectric slab, and the 4 radiation patches are respectively connected with one branch.
Preferably, the dielectric plate is a solid dielectric.
Preferably, the lengths of the upper metal plate, the lower metal plate and the dielectric plate are equal and are aligned and attached, and the widths of the upper metal plate and the lower metal plate are smaller than that of the dielectric plate.
Preferably, the positions of the main feeder line and the 4 branches on the central layer are in the bonding areas of the upper metal plate, the lower metal plate and the dielectric plate, and the positions of the 4 radiation patches on the central layer are outside the bonding areas of the upper metal plate, the lower metal plate and the dielectric plate.
Preferably, the lengths of the upper metal plate, the lower metal plate and the medium plate are all 60 mm.
Preferably, the width of the medium plate is 23mm, and the thickness of the medium plate is 1.6 mm.
Preferably, the main feeder line is used for feeding, and the length of the main feeder line is 60mm, and the width of the main feeder line is 4 mm.
Preferably, the 4 branches are L-shaped branches, one side of each L-shaped branch is connected to the main feeder line, the interval is L mm, the length of one side of each L-shaped branch is sequentially increased by Δ ymm, the longest length of one side of each L-shaped branch is equal to the width of the upper metal plate and the width of the lower metal plate, the other side of each L-shaped branch is connected to the radiation patch, the other side of each L-shaped branch is sequentially decreased by Δ L mm, and the longest length of the other side of each L-shaped branch is 3 Δ L.
Preferably, the 4 radiation patches are all located in a central layer which is g mm away from the attaching areas of the upper metal plate, the lower metal plate and the dielectric plate.
Preferably, the antenna is manufactured by adopting a printed circuit board technology, and has the characteristics of easy integration and easy processing.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the invention realizes the fixed radiation characteristic of the wave beam through the length difference of the 4 branches, and meanwhile, the antenna of the invention has the characteristics of easy integration and easy processing and can realize large bandwidth.
Drawings
FIG. 1 is a perspective view of an embodiment;
FIG. 2 is a top view of the embodiment;
FIG. 3 is a side view of the embodiment;
FIG. 4 is a graph of reflection coefficient and gain for an embodiment;
fig. 5 is a radiation pattern of an embodiment.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 1 | Upper |
2 | |
| 3 | |
4 | |
| 5 | Branch of | 6 | Radiation patch |
| Wg | Width of dielectric plate | Lg | Length of dielectric plate |
| Wm1(mm) | Width of feed line | εr | Dielectric constant of dielectric plate |
| Lp | Patch length | Wp | Width of patch |
| Δy(mm) | Difference in branch height | L(mm) | Distance between branches |
| ΔL(mm) | Difference in branch length | Wm(mm) | Width of branch |
| g(mm) | Distance between patch and metal plate | h(mm) | Thickness of single layer plate |
| L1(mm) | Distance between patch and feeder |
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to fig. 3, the present embodiment provides a 1 × 4 beam fixed traveling wave antenna, which includes an upper metal plate 1, a lower metal plate 2, a dielectric plate 3, a main feeder 4, 4 branches 5, and 4 radiating patches 6, wherein:
the upper-layer metal plate 1, the lower-layer metal plate 2 and the dielectric plate 3 are all strip-shaped, the upper-layer metal plate 1 is attached to the upper surface of the dielectric plate 3, and the lower-layer metal plate 2 is attached to the lower surface of the dielectric plate 3;
the dielectric plate 3 is provided with a central layer, the central layer is internally provided with a main feeder 4, 4 branches 5 and 4 radiation patches 6, the main feeder 4 is arranged along the length direction of the dielectric plate 3, the 4 branches 5 are connected with the main feeder 4, the 4 branches 5 are arranged along the width direction of the dielectric plate 3, the 4 branches 5 have length difference, and the 4 radiation patches 6 are respectively connected with one branch 5.
The dielectric plate 3 is a solid dielectric.
The lengths of the upper metal plate 1, the lower metal plate 2 and the dielectric plate 3 are equal and are aligned and attached, and the widths of the upper metal plate 1 and the lower metal plate 2 are smaller than the width of the dielectric plate 3.
The positions of the main feeder 4 and the 4 branches 5 on the central layer are in the joint area of the upper-layer metal plate 1, the lower-layer metal plate 2 and the dielectric plate 3, and the positions of the 4 radiation patches 6 on the central layer are outside the joint area of the upper-layer metal plate 1, the lower-layer metal plate 2 and the dielectric plate 3.
The lengths of the upper layer metal plate 1, the lower layer metal plate 2 and the dielectric plate 3 are all 60 mm.
The width of the medium plate 3 is 23mm, and the thickness is 1.6 mm.
The main feeder 4 is used for feeding, and the length of the main feeder 4 is 60mm, and the width of the main feeder is 4 mm.
4 branch 5 is L type branch 5, one side and the main feeder 4 of L type branch 5 are connected, and the interval is L mm the length on one side of 4L type branch 5 increases Δ ymm in proper order, the longest length on one side of 4L type branch 5 equals with upper metal sheet 1, the width of lower floor's metal sheet 2, the another side and the radiation paster 6 of L type branch 5 are connected, the another side of 4L type branch 5 reduces Δ L mm in proper order, the longest length on the another side of 4L type branch 5 is 3 Δ L.
The 4 radiation patches 6 are all positioned in the central layer which is g mm away from the jointing area of the upper-layer metal plate 1, the lower-layer metal plate 2 and the dielectric plate 3.
The antenna is manufactured by adopting a printed circuit board technology.
In the specific implementation process, the antenna is assembled on a dielectric plate 3 with the dielectric constant of 2.2, the loss tangent of 0.0009, the length of 60mm, the width of 23mm and the total thickness of 1.6 mm; the length of the upper layer metal plate 1 and the lower layer metal plate 2 is 60mm, 4 branches 5, a main feeder 4 and a radiation patch 6 are arranged in the middle layer of the dielectric plate 3, the distance L between the branches 5 is 6.7mm, the height difference delta y between the branches 5 is 0.8mm, the length difference delta L between the branches 5 is 3.3mm, and the width W of each branch 5 ismIs 0.3mm, the length of the feeder line 4 is 60mm, and the width WgIs 4 mm.
Fig. 4 shows the reflection coefficient and the gain coefficient of the antenna provided by the embodiment, and it can be seen from fig. 4 that the impedance bandwidth (| S11| < -10dB) of the antenna is about 10.4%, and the maximum gain is 4.9 dBi.
Fig. 5 shows the radiation pattern of the antenna provided by the embodiment operating at 13.0, 13.5 and 14.0GHz, and it can be seen that the pattern of the antenna is stable and the beam is fixed.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a 1 x 4 wave beam fixed traveling wave antenna which characterized in that, includes upper metal sheet, lower floor metal sheet, dielectric plate, main feeder, 4 branches and 4 radiation patches, wherein:
the upper metal plate, the lower metal plate and the dielectric plate are all in a strip shape, the upper metal plate is attached to the upper surface of the dielectric plate, and the lower metal plate is attached to the lower surface of the dielectric plate;
the dielectric slab is provided with a central layer, the central layer is internally provided with the main feeder, 4 branches and 4 radiation patches, the main feeder is arranged along the length direction of the dielectric slab, the 4 branches are connected with the main feeder, the 4 branches are arranged along the width direction of the dielectric slab, the 4 branches have length difference, and the 4 radiation patches are respectively connected with one branch;
the positions of the main feeder line and the 4 branches on the central layer are in the joint areas of the upper metal plate, the lower metal plate and the dielectric plate, and the positions of the 4 radiation patches on the central layer are outside the joint areas of the upper metal plate, the lower metal plate and the dielectric plate.
2. The 1 x 4 beam fixed traveling wave antenna of claim 1, wherein the dielectric plate is a solid dielectric.
3. The 1 x 4 beam fixed traveling-wave antenna according to claim 2, wherein the upper metal plate, the lower metal plate, and the dielectric plate have the same length and are aligned and attached to each other, and the widths of the upper metal plate and the lower metal plate are smaller than the width of the dielectric plate.
4. The 1 x 4 beam fixed traveling wave antenna according to claim 3, wherein the lengths of the upper metal plate, the lower metal plate and the dielectric plate are all 60 mm.
5. The 1 x 4 beam fixed traveling wave antenna according to claim 4, wherein the dielectric plate has a width of 23mm and a thickness of 1.6 mm.
6. The 1 x 4 beam fixed traveling wave antenna according to claim 5, wherein the main feed line is used for feeding, and the length of the main feed line is 60mm and the width is 4 mm.
7. The 1 x 4 beam fixed traveling-wave antenna according to any one of claims 1 to 6,
the 4 branches comprise 3
Type branch and 1
The 4 branches are connected with the main feeder line at one end and are Lmm-numbered at intervals
The length of one side of each type branch connected with the main feeder line is increased by delta ymm in sequence, the other ends of the 4 branches are connected with the radiation patches, and the number of the 3 branches is 3
The middle edge of the type branch is reduced by delta Lmm in turn, and the number of the 3 branches is
The longest length of the middle side of the type branch is 3 Δ L.
8. The 1 x 4 beam fixed traveling wave antenna according to claim 7, wherein the 4 radiating patches are each located in a central layer at a distance of gmm from the attaching areas of the upper metal plate, the lower metal plate, and the dielectric plate.
9. The 1 x 4 beam fixed traveling-wave antenna of claim 7, wherein the antenna is fabricated using printed circuit board technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011595480.2A CN112768912B (en) | 2020-12-29 | 2020-12-29 | 1X 4 wave beam fixed traveling wave antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011595480.2A CN112768912B (en) | 2020-12-29 | 2020-12-29 | 1X 4 wave beam fixed traveling wave antenna |
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| CN112768912A CN112768912A (en) | 2021-05-07 |
| CN112768912B true CN112768912B (en) | 2022-06-10 |
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| CN202011595480.2A Active CN112768912B (en) | 2020-12-29 | 2020-12-29 | 1X 4 wave beam fixed traveling wave antenna |
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| CN114725686B (en) * | 2022-05-17 | 2024-03-12 | 安徽大学 | Logarithmic periodic antenna based on half-module rectangular metal waveguide excitation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1133120A (en) * | 1978-05-22 | 1982-10-05 | Peter S. Hall | Stripline antennae with phase-shifting slotted strip |
| CN104377449A (en) * | 2013-08-15 | 2015-02-25 | 同方威视技术股份有限公司 | Broadband microstrip antenna and antenna array |
| CN106450726A (en) * | 2016-10-14 | 2017-02-22 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Broadband slotted end-fire microstrip antenna |
| CN107394381B (en) * | 2017-07-18 | 2019-11-12 | 东南大学 | A kind of broadband circle polarized array antenna of low section using stacking travelling-wave aerial unit |
| CN209592305U (en) * | 2019-04-12 | 2019-11-05 | 云南大学 | A kind of ISGW circular polarisation gap traveling-wave array antenna |
| CN110233334B (en) * | 2019-04-29 | 2020-11-13 | 电子科技大学 | Horizontal polarization leaky-wave antenna based on substrate integrated mirror image dielectric waveguide |
| CN210326118U (en) * | 2019-10-16 | 2020-04-14 | 成都奥特为通讯有限公司 | Conformal low-profile dual-frequency WiFi antenna |
| CN211957919U (en) * | 2020-05-25 | 2020-11-17 | 南京慧尔视智能科技有限公司 | 45-degree linear polarization low-sidelobe radar antenna |
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