CN112768916B - 1 x 8 broadband wave beam fixed travelling wave antenna - Google Patents
1 x 8 broadband wave beam fixed travelling wave antenna Download PDFInfo
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- CN112768916B CN112768916B CN202011600191.7A CN202011600191A CN112768916B CN 112768916 B CN112768916 B CN 112768916B CN 202011600191 A CN202011600191 A CN 202011600191A CN 112768916 B CN112768916 B CN 112768916B
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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
Abstract
The invention provides a 1 x 8 broadband 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, 8 branches and 8 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 plate is provided with an intermediate layer, the main feeder, 8 branches and 8 radiation patches are arranged in the intermediate layer, the main feeder is arranged along the length direction of the dielectric plate, the 8 branches are connected with the main feeder, the 8 branches are arranged along the width direction of the dielectric plate, the 8 branches have length difference, and the 8 radiation patches are respectively connected with one branch. The structure of the invention can adopt the printed circuit board technology, has the characteristics of easy integration and easy processing, and simultaneously realizes the radiation characteristic of fixed wave beams through the length difference of 8 branches.
Description
Technical Field
The invention relates to the field of communication antennas, in particular to a traveling wave antenna with a fixed 1 x 8 broadband wave beam.
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 8 broadband beam fixed traveling wave antenna, which realizes beam fixation and large bandwidth, 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 8 broadband beam fixed traveling wave antenna comprises an upper metal plate, a lower metal plate, a dielectric plate, a main feeder, 8 branches and 8 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 plate is provided with an intermediate layer, the main feeder, 8 branches and 8 radiation patches are arranged in the intermediate layer, the main feeder is arranged along the length direction of the dielectric plate, the 8 branches are connected with the main feeder, the 8 branches are arranged along the width direction of the dielectric plate, the 8 branches have length difference, and the 8 radiation patches are respectively connected with one branch.
The antenna provided by the scheme is manufactured by adopting a printed circuit board technology.
Preferably, the lengths of the upper metal plate, the lower metal plate and the dielectric plate are equal, the widths of the upper metal plate and the lower metal plate are smaller than the width of the dielectric plate, and the upper metal plate and the lower metal plate are aligned and attached to the upper surface and the lower surface of the dielectric plate along the long edge of the dielectric plate respectively.
Preferably, the intermediate layer is disposed in the middle of the dielectric slab, and the distances from the intermediate layer to the upper surface and the lower surface of the dielectric slab are both h.
Preferably, the overlapping area of the upper metal plate, the lower metal plate and the dielectric plate is the overlapping area, the positions of the main feeder and the 8 branches in the middle layer are the overlapping area, and the positions of the 8 radiation patches in the middle layer are outside the overlapping area.
Preferably, the 8 branches are L-shaped branches, one side of each L-shaped branch is connected to the main feed line, and the other side of each L-shaped branch is connected to the radiation patch, wherein one side of each of the 8L-shaped branches is spaced by L millimeters, and the lengths of the 8L-shaped branches are sequentially increased by Δ y millimeters; the length of the other side of the L-shaped branches is reduced by Delta L millimeter in sequence, and the longest length of the other side of the 8L-shaped branches is 7 Delta L millimeter.
Preferably, the radiation patch is rectangular, one short side of the radiation patch is aligned with the edge of the other long side of the dielectric slab, and the distance from the other short side of the radiation patch to the overlapping region is g millimeters.
Preferably, the other short side of the radiating patch is at a distance L from the main feed line1And (4) millimeter.
Preferably, the longest length of one side of the 8L-shaped branches is not more than L1G mm.
Preferably, the length of the main feeder is equal to the lengths of the upper metal plate, the lower metal plate and the dielectric plate, and the length of the main feeder is greater than 7L +7 Δ L + WpIn mm, wherein WpThe width of the radiating patch.
Preferably, each side of the 8L-shaped branches has a width WmAnd (4) millimeter.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the structure of the invention can adopt the printed circuit board technology, has the characteristics of easy integration and easy processing, and simultaneously realizes the radiation characteristic of beam fixation through the length difference of 8 branches.
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 indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Upper |
2 | |
| 3 | |
4 | Main feeder line |
| 5 | Branch of | 6 | Radiation patch |
| Wg | Dielectric plateWidth of | 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
The present embodiment provides a 1 × 8 broadband beam fixed traveling-wave antenna, as shown in fig. 1 to 3, including an upper metal plate 1, a lower metal plate 2, a dielectric plate 3, a main feeder 4, 8 branches 5, and 8 radiating patches 6, where:
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 an intermediate layer, the intermediate layer is provided with a main feeder 4, 8 branches 5 and 8 radiation patches 6, the main feeder 4 is arranged along the length direction of the dielectric plate 3, the 8 branches 5 are connected with the main feeder 4, the 8 branches 5 are arranged along the width direction of the dielectric plate 3, the 8 branches 5 have length difference, and the 8 radiation patches 6 are respectively connected with one branch 5.
The dielectric plate is a solid dielectric.
The length of upper metal sheet 1, lower floor's metal sheet 2 and dielectric slab 3 equals, the width of upper metal sheet 1, lower floor's metal sheet 2 is less than dielectric slab 3's width, upper metal sheet 1, lower floor's metal sheet 2 are followed respectively dielectric slab 3 long limit edge align laminate in dielectric slab 3's upper surface, lower surface, in this embodiment, the length of upper metal sheet 1, lower floor's metal sheet 2 and dielectric slab 3 is 120mm, the width of dielectric slab 3 is 23mm, the thickness of dielectric slab 3 is 1.6 mm.
The middle layer is arranged in the middle of the dielectric plate 3, and the distance between the middle layer and the upper surface and the distance between the middle layer and the lower surface of the dielectric plate 3 are both h.
The overlapping area of the upper layer metal plate 1, the lower layer metal plate 2 and the dielectric plate 3 is an overlapping area, the positions of the main feeder 4 and the 8 branches 5 in the middle layer are in the overlapping area, and the positions of the 8 radiation patches 6 in the middle layer are outside the overlapping area.
The 8 branches 5 are L-shaped branches 5, one side of each L-shaped branch 5 is connected to the main feeder 4, and the other side of each L-shaped branch 5 is connected to the radiation patch 6, wherein one side of each L-shaped branch 5 is spaced by L millimeters, and the length of each L-shaped branch 5 is sequentially increased by Δ y millimeters, where Δ y is 0.8 in this embodiment; the length of the other side of the L-shaped branch 5 is sequentially reduced by Δ L mm, in this embodiment, Δ L is 3.3, and the longest length of the other side of the 8L-shaped branches 5 is 7 Δ L mm.
The radiation patch 6 is rectangular, one short side of the radiation patch 6 is aligned with the edge of the other long side of the dielectric plate 3, the distance from the other short side of the radiation patch 6 to the overlapping area is g millimeters, in this embodiment, the length of the radiation patch 6 is 8mm, and the width of the radiation patch 6 is 2 mm.
The distance between the other short side of the radiation patch 6 and the main feeder line 4 is L1And (4) millimeter.
The longest length of one side of the 8L-shaped branches 5 is not more than L1G mm.
The length of the main feeder 4 is equal to the lengths of the upper layer metal plate 1, the lower layer metal plate 2 and the dielectric plate 3, and the main feederThe length of the line 4 is greater than 7L +7 DeltaL + WpIn mm, wherein WpThe width of the main feed line 4 is 3mm for the width of the radiating patch 6.
Each side of the 8L-shaped branches 5 has a width WmMm, in this example, WmIs 0.3.
In a specific implementation, the antenna is assembled on a dielectric layer with the dielectric constant of 2.2, the loss tangent of 0.0009, the length of 120mm, the width of 23mm and the total thickness of 1.6 mm; the length of upper metal plate 1 and lower metal plate 2 is 120mm, 8 branches 5, main feeder 4 and 8 patches are in the middle layer of the antenna, the distance between branches 5 is 6.7mm, the height difference delta y between branches 5 is 0.8mm, the length difference delta L between branches 5 is 3.3mm, the width W of branch 5 is 3mmmIs 0.3mm, the length of the main feeder 4 is 120mm, and the width Wm1Is 3 mm.
Fig. 4 shows the reflection coefficient and gain coefficient of the present invention, and it can be seen from fig. 4 that the impedance bandwidth (| S11| < -10dB) of the antenna is about 40.7%, the bandwidth is large, and the maximum gain is 9.4 dBi.
Fig. 5 shows the radiation patterns of the present invention operating at 10.0, 12.0, and 14.0GHz, and it can be seen that the antenna patterns are stable and the beams are 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 8 broadband beam fixed traveling wave antenna which characterized in that, includes upper metal sheet, lower floor metal sheet, dielectric plate, main feeder, 8 branches and 8 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 plate is provided with an intermediate layer, the intermediate layer is internally provided with the main feeder, 8 branches and 8 radiation patches, the main feeder is arranged along the length direction of the dielectric plate, the 8 branches are connected with the main feeder, the 8 branches are arranged along the width direction of the dielectric plate, the 8 branches have length difference, and the 8 radiation patches are respectively connected with one branch;
the superposed areas of the upper layer metal plate, the lower layer metal plate and the dielectric plate are superposed areas, the positions of the main feeder and the 8 branches in the middle layer are superposed areas, and the positions of the 8 radiation patches in the middle layer are superposed areas.
2. The 1 x 8 broadband beam-fixed traveling-wave antenna according to claim 1, wherein the lengths of the upper metal plate, the lower metal plate, and the dielectric plate are equal, the widths of the upper metal plate and the lower metal plate are smaller than the width of the dielectric plate, and the upper metal plate and the lower metal plate are aligned and attached to the upper surface and the lower surface of the dielectric plate along the long edge of the dielectric plate, respectively.
3. The 1 x 8 broadband beam-fixed traveling-wave antenna according to claim 2, wherein the intermediate layer is provided in the middle of the dielectric plate, and distances from the upper surface and the lower surface of the dielectric plate are both h.
4. The 1 x 8 broadband beam fixed traveling-wave antenna according to claim 3, wherein the 8 branches comprise 7 branches
Type branch and 1
A type branch, one end of the 8 branches is connected with the main feeder line, the other end of the 8 branches is connected with the radiation patch, wherein the edges of the 8 branches connected with the main feeder line are respectively spaced by L millimeters, and the 7 branches are respectively spaced by L millimeters
The length of the side of the type branch connected with the main feeder line is increased by delta y millimeters in sequence; the 7 pieces
The length of the middle edge of the type branch is reduced by Delta L millimeter in turn by 7
The longest length of the middle side of the profile branch is 7 al millimeters.
5. The 1 x 8 broadband beam fixed traveling-wave antenna according to claim 4, wherein the radiation patch is rectangular, one short side of the radiation patch is aligned with an edge of the other long side of the dielectric plate, and the other short side of the radiation patch is located at a distance of g mm from the overlapping area.
6. The 1 x 8 broadband beam fixed traveling wave antenna according to claim 5, wherein the other short side of the radiation patch is located at a distance L from the main feed line1And (4) millimeter.
7. The 1 x 8 broadband beam fixed traveling-wave antenna according to claim 6, wherein the 7 are
The longest length of one side of the branch is not more than L1-g mm.
8. The 1 x 8 broadband beam fixed traveling-wave antenna according to claim 7, wherein the length of the main feed line is equal to the lengths of the upper metal plate, the lower metal plate and the dielectric plate, and the length of the main feed line is greater than 7L +7 al + WpIn mm, wherein WpThe width of the radiating patch.
9. The 1 x 8 broadband beam fixed traveling-wave antenna according to claim 8, wherein the 7 are
Each side of the profile branch has a width WmAnd (4) millimeter.
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| CN202011600191.7A CN112768916B (en) | 2020-12-29 | 2020-12-29 | 1 x 8 broadband wave beam fixed travelling wave antenna |
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| CN202011600191.7A CN112768916B (en) | 2020-12-29 | 2020-12-29 | 1 x 8 broadband wave beam fixed travelling wave antenna |
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| CN112768916A CN112768916A (en) | 2021-05-07 |
| CN112768916B true CN112768916B (en) | 2022-06-10 |
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| CA1133120A (en) * | 1978-05-22 | 1982-10-05 | Peter S. Hall | Stripline antennae with phase-shifting slotted strip |
| 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 |
| CN107394381A (en) * | 2017-07-18 | 2017-11-24 | 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104377450B (en) * | 2013-08-15 | 2016-12-28 | 清华大学 | Waveguide trumpet array and method thereof and antenna system |
| 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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2020
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| CA1133120A (en) * | 1978-05-22 | 1982-10-05 | Peter S. Hall | Stripline antennae with phase-shifting slotted strip |
| 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 |
| CN107394381A (en) * | 2017-07-18 | 2017-11-24 | 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 |
| 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 |
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