CN205583153U - High -gain broadband circular polarized antenna - Google Patents
High -gain broadband circular polarized antenna Download PDFInfo
- Publication number
- CN205583153U CN205583153U CN201620297561.7U CN201620297561U CN205583153U CN 205583153 U CN205583153 U CN 205583153U CN 201620297561 U CN201620297561 U CN 201620297561U CN 205583153 U CN205583153 U CN 205583153U
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- CN
- China
- Prior art keywords
- polarized antenna
- circular polarized
- base plate
- plate
- broadband circular
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- 230000005855 radiation Effects 0.000 claims abstract description 14
- 230000010287 polarization Effects 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000003854 Surface Print Methods 0.000 claims abstract 2
- 239000000758 substrate Substances 0.000 claims description 29
- 238000009434 installation Methods 0.000 abstract 1
- 238000001465 metallisation Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The utility model discloses a high -gain broadband circular polarized antenna belongs to circular polarized antenna technical field, and it includes the resonant cavity, and the resonant cavity includes mutual parallel arrangement's upper medium base plate and lower floor's medium base plate, lower surface installation section at upper medium base plate divides the reflecting plate, print the copper metallization face at the lower surface of lower floor's medium base plate and as the ground plate, be equipped with the bottom plate below the ground plate, at the lower surface printing feed network of bottom plate, printing circle polarized radiation unit on lower floor's medium base plate. The utility model discloses a structure is simpler, and passing part divides the reflecting plate and constitutes the resonant cavity with partial reflection surface parallel's ground plate, utilizes the improvement that the resonance characteristic makes does not need a lot of array module gain being shown, simultaneously, between circle polarized radiation unit structural in proper order rotatory 90 degrees constitute the broadband circular polarization, the utility model discloses a though what the more conventional antenna array unit interval of circular polarization feed unit interval will be big is many, there is not the graing lobe to appear, possesses fine practicality.
Description
Technical field
This utility model belongs to circular polarized antenna technical field, is specifically related to a kind of high-gain broadband circular polarisation sky
Line.
Background technology
Circular polarized antenna plays an important role in radio art, especially in aerospace craft, due to aircraft
Position and attitude fixing, their communication measuring and controlling equipment be desirable that be conformal, lightweight, volume is little and becomes
This low circular polarized antenna.Circular polarization microstrip antenna is exactly the more satisfactory antenna that can meet these requirements.
The field such as modern radar, satellite communication typically requires the circular polarized antenna using higher gain.Generally use
Aerial array realizes, and array element number is more, needs complicated feeding network to realize circular polarisation for this
Amplitude and phase condition.Therefore the problem brought is the mutual symplectic antenna performance between feed structure complexity and unit
Impact, thus cause the bandwidth particularly axial ratio bandwidth of antenna narrower.
Utility model content
Utility model purpose: the purpose of this utility model is to provide a kind of high-gain broadband circular polarized antenna,
Simplify and high-gain circular polarized antenna uses complicated feed network carry out the mode fed.
A kind of high-gain broadband circular polarized antenna, including resonator cavity, resonator cavity includes arranged in parallel upper
Layer medium substrate and layer dielectric substrate；Lower surface setting unit reflecting surface in described upper layer medium substrate；
Lower surface at described layer dielectric substrate is printed and is applied copper face as earth plate, the end is arranged below at earth plate
Plate, the lower surface at base plate is printed feeding network, is printed circular polarization radiation unit on layer dielectric substrate；Institute
The circular polarization radiation unit stated is 4, and adjacent circular polarization radiation unit 90-degree rotation successively.
Described partially reflecting surface is made up of some annular pasters, and annular paster set along the orthogonal direction cycle
Put, and partially reflecting surface occupied area area less than upper layer medium substrate lower surface occupied area 50%.
Described annular paster is printed on the lower surface of upper layer medium substrate.
Described annular paster Cycle Length in 2 orthogonal directions is equal.
Described upper layer medium substrate, all fixed by securing member between layer dielectric substrate and base plate.
Distance between described earth plate and partially reflecting surface is d, and it meets d=(1/2+n/2) λ0,
Wherein λ0Centered by the free space wavelength of frequency electromagnetic, n is integer；Wherein, d and λ0Unit is
mm。
Spacing l=1.0-1.5 λ between described adjacent circular polarization radiation unit0。
Beneficial effect: compared with existing circular polarized antenna, a kind of high-gain broadband entelechy of the present utility model
Change antenna, eliminate the tradition shortcoming that high-gain circular polarized antenna array element is many, feeding network is complicated, structure
Simpler；Pass through partially reflective surface and the earth plate parallel with partially reflecting surface constitutes resonator cavity, profit
Make to need not a lot of array element gain by resonance characteristic can be significantly improved, meanwhile, circular polarisation spoke
Penetrate between unit in structure 90-degree rotation successively and constitute broadband circular polarisation；Circular polarisation of the present utility model feed is single
Although unit's spacing more conventional antenna array unit spacing wants big many, but graing lobe does not occurs；Possess
Well practicality.
Accompanying drawing explanation
Fig. 1 is the front view of broadband circular-polarization high gain antenna；
Fig. 2 is the side view of broadband circular-polarization high gain antenna；
Fig. 3 is the structural representation of partially reflecting surface；
Fig. 4 is the structural representation of partially reflecting surface periodic unit；
Fig. 5 is the structural representation of position relative relation between radiating element and unit；
Fig. 6 is reflection coefficient chart；
Fig. 7 is that axle is than frequency response curve figure；
Fig. 8 is gain frequency response curve figure；
Fig. 9 is horizontal radiation pattern；
Figure 10 is elevation radiation patytern.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, it is further elucidated with this utility model.
As Figure 1-3, high-gain broadband circular polarized antenna, including resonator cavity 2, resonator cavity 2 includes phase
The upper layer medium substrate 21 be arrangeding in parallel mutually and layer dielectric substrate 23.Upper layer medium substrate 21 and lower floor are situated between
Matter substrate 23 interval is arranged, and air can enter between the two.
At the lower surface setting unit reflecting surface of upper layer medium substrate 21, this partially reflecting surface is by some circles
Annular paster 22 forms, and annular paster 22 was arranged along the orthogonal direction cycle, and annular paster 22 directly prints
System is on the lower surface of upper layer medium substrate 21.
Lower surface at layer dielectric substrate 23 is printed and is applied copper face as earth plate 24, earth plate 24 times
Face is provided with base plate 25, and the lower surface at base plate 25 is printed with the feeding network 26 that microstrip line is constituted.Earth plate
Distance between 24 and partially reflecting surface is d, and it meets d=(1/2+n/2) λ0Condition, wherein λ0For
The free space wavelength of mid frequency electromagnetic wave, n is integer.Upper layer medium substrate 21, layer dielectric substrate
All fixed by securing member 27 between 23 and base plate 25.Wherein, d and λ0Unit is mm.
As shown in Figure 4, annular paster 22 Cycle Length in 2 orthogonal directions is equal, is P,
Annulus outer radius is r, and width is w.Partially reflecting surface is in upper layer medium substrate 21 lower surface occupied area
Less.Wherein, P, r, w unit is mm.
As it is shown in figure 5, print 4 circular polarization radiation unit 1, adjacent circle on layer dielectric substrate 23
Spacing l=1.0-1.5 λ between ultra-wideband antenna 1 90-degree rotation successively, and adjacent circular polarization radiation unit 10,
More conventional antenna array unit spacing wants big many, belongs to thinned arrays.
The design process of the most each structural parameters, given structural parameters: the circle of annular paster 22
Ring outer radius r=3.4mm, width w=0.5mm, the Cycle Length along both direction is p=8.5mm,
Mid frequency f=10GHz, distance d=15mm between earth plate 24 and partially reflecting surface, meet:
Wherein λ0Centered by the free space wavelength of frequency electromagnetic, l=1.0-1.5 λ0.Select simulation software such as
The Frequency Simulation Software such as the Microwave Studio CST of HFSS, CST company of Ansoft company, at meter
On calculation machine, analog simulation obtains: the axle shown in reflection coefficient chart as shown in Figure 6, Fig. 7 compares frequency response curve
Vertical shown in figure, the gain frequency response curve figure shown in Fig. 8, the horizontal radiation pattern shown in Fig. 9, Figure 10
Face directional diagram.Curve derived above is real to be obtained under prescribed conditions, if changing structural parameters can also obtain phase
As curve.
Knowable to Fig. 6-10, the highest-gain of antenna has reached 16.5dBi, and reflection coefficient≤-10dB, axle ratio
≤ 3dB, the common bandwidth of gain landing≤2dB has reached 12% (9.4-10.6GHz).
Claims (7)
1. a high-gain broadband circular polarized antenna, it is characterised in that: include resonator cavity (2), resonator cavity
(2) upper layer medium substrate (21) arranged in parallel and layer dielectric substrate (23) are included；Described
The lower surface setting unit reflecting surface of upper layer medium substrate (21)；At described layer dielectric substrate (23)
Lower surface print and apply copper face as earth plate (24), base plate (25) is arranged below at earth plate (24),
Lower surface at base plate (25) prints feeding network (26), prints entelechy on layer dielectric substrate (23)
Change radiating element (1)；Described circular polarization radiation unit (1) is 4, and adjacent circular polarization radiation list
Unit's (1) 90-degree rotation successively.
A kind of high-gain broadband circular polarized antenna the most according to claim 1, it is characterised in that: institute
The partially reflecting surface stated is made up of some annular pasters (22), and annular paster (22) is along orthogonal direction
Cycle arrange, and partially reflecting surface occupied area area less than upper layer medium substrate (21) lower surface shared by
The 50% of area.
A kind of high-gain broadband circular polarized antenna the most according to claim 2, it is characterised in that: institute
The annular paster (22) stated is printed on the lower surface of upper layer medium substrate (21).
A kind of high-gain broadband circular polarized antenna the most according to claim 2, it is characterised in that: institute
The annular paster (22) stated Cycle Length in 2 orthogonal directions is equal.
5. according to a kind of high-gain broadband circular polarized antenna described in any one in claim 1-4, its
It is characterised by: between described upper layer medium substrate (21), layer dielectric substrate (23) and base plate (25)
All fixed by securing member (27).
6. according to a kind of high-gain broadband circular polarized antenna described in any one in claim 1-4, its
Being characterised by: the described distance between earth plate (24) and partially reflecting surface is d, it meets
D=(1/2+n/2) λ0, wherein λ0Centered by the free space wavelength of frequency electromagnetic, n is integer.
A kind of high-gain broadband circular polarized antenna the most according to claim 6, it is characterised in that: institute
Spacing l=1.0-1.5 λ between the adjacent circular polarization radiation unit (1) stated0。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620297561.7U CN205583153U (en) | 2016-04-11 | 2016-04-11 | High -gain broadband circular polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620297561.7U CN205583153U (en) | 2016-04-11 | 2016-04-11 | High -gain broadband circular polarized antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205583153U true CN205583153U (en) | 2016-09-14 |
Family
ID=56865416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620297561.7U Expired - Fee Related CN205583153U (en) | 2016-04-11 | 2016-04-11 | High -gain broadband circular polarized antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205583153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117353012A (en) * | 2023-12-05 | 2024-01-05 | 成都恪赛科技有限公司 | Broadband circularly polarized antenna and preparation method thereof |
-
2016
- 2016-04-11 CN CN201620297561.7U patent/CN205583153U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117353012A (en) * | 2023-12-05 | 2024-01-05 | 成都恪赛科技有限公司 | Broadband circularly polarized antenna and preparation method thereof |
| CN117353012B (en) * | 2023-12-05 | 2024-04-12 | 成都恪赛科技有限公司 | Broadband circularly polarized antenna and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |