CN207677081U - Broadband circularly polarized antenna based on annular patch - Google Patents
Broadband circularly polarized antenna based on annular patch Download PDFInfo
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- CN207677081U CN207677081U CN201721917796.2U CN201721917796U CN207677081U CN 207677081 U CN207677081 U CN 207677081U CN 201721917796 U CN201721917796 U CN 201721917796U CN 207677081 U CN207677081 U CN 207677081U
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- Prior art keywords
- dielectric plate
- annular patch
- polarized antenna
- circularly polarized
- broadband circularly
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Abstract
The utility model discloses a kind of Broadband circularly polarized antenna based on annular patch, including top dielectric plate and layer dielectric plate, it is connected by four metal columns between the top dielectric plate and layer dielectric plate, four strip feeder lines are arranged in the lower surface of the top dielectric plate, an annular patch is arranged in the upper surface of the top dielectric plate, one end of each strip feeder line is respectively provided with that there are one feed ports, and four strip feeder lines are using the center of annular patch as the center of circle and with R2The lower surface of top dielectric plate is uniformly distributed in for radius, each strip feeder line is equal with the fan-shaped angle that the center of circle is constituted.Annular patch of the Broadband circularly polarized antenna described in the utility model based on annular patch by four strip feeder lines to antenna carries out couple feed, has broadened the impedance bandwidth and axial ratio bandwidth of circular polarized antenna, has had good broadband character and circular polarization characteristics.
Description
Technical field
The utility model is related to technical field of satellite communication more particularly to a kind of broadband circle polarized days based on annular patch
Line.
Background technology
Circular polarized antenna can reduce the loss in ionosphere, moreover, to reception antenna and transmitting with the influence of anti-multipath fading
The position of antenna, which is put, not to be required.Therefore, the Broadband circularly polarized antenna based on annular patch is well suited for making in mobile communications
With.However, the impedance bandwidth and axial ratio bandwidth of micro-strip circular polarized antenna are very narrow, lead to not large-scale promotion in mobile communications
Using.
Utility model content
The main purpose of the utility model provides a kind of Broadband circularly polarized antenna based on annular patch, it is intended to solve existing
Micro-strip circular polarized antenna impedance bandwidth and the relatively narrow technical problem of axial ratio bandwidth.
To achieve the above object, the utility model provides a kind of Broadband circularly polarized antenna based on annular patch, including
Top dielectric plate and layer dielectric plate are connected between the top dielectric plate and layer dielectric plate by four metal columns, described
Four strip feeder lines are arranged in the lower surface of top dielectric plate, and an annular patch is arranged in the upper surface of the top dielectric plate, often
One end of a strip feeder line is respectively provided with there are one feed port, and four strip feeder lines are using the center of annular patch as the center of circle and with R2
The lower surface of top dielectric plate is uniformly distributed in for radius, each strip feeder line is equal with the fan-shaped angle that the center of circle is constituted.
Preferably, the upper surface of the layer dielectric plate covers one layer of metallic copper, and the metallic copper is as described based on annular
The metal of the Broadband circularly polarized antenna of patch.
Preferably, the radius R2Value be 24mm, the value of fan-shaped angle theta is 60 °.
Preferably, the annular diameters of the annular patch are d1=8mm, between the inner ring and outer shroud of the annular patch
Spacing is R1=32.7mm.
Preferably, the diameter of four metal columns is d2The thickness of=2mm, four strip feeder lines are S=2mm.
Preferably, the thickness of the top dielectric plate and layer dielectric plate is H1=0.762mm, length are L=
130mm, width are W=130mm.
Preferably, the distance after being connected by four metal columns between the top dielectric plate and layer dielectric plate is H2=
9mm。
Compared to the prior art, the Broadband circularly polarized antenna described in the utility model based on annular patch uses above-mentioned technology
Scheme has reached following technique effect：Annular patch of the utility model by four strip feeder lines to antenna carries out coupling feedback
Electricity has broadened the impedance bandwidth and axial ratio bandwidth of circular polarized antenna, with good broadband character and with circular polarisation performance.
Description of the drawings
Fig. 1 is the structural schematic diagram of Broadband circularly polarized antenna preferred embodiment of the utility model based on annular patch；
Fig. 2 is the side view of Broadband circularly polarized antenna of the utility model based on annular patch；
Fig. 3 is the lower surface schematic diagram of Broadband circularly polarized antenna top dielectric plate of the utility model based on annular patch；
Fig. 4 is the upper surface schematic diagram of Broadband circularly polarized antenna top dielectric plate of the utility model based on annular patch；
Fig. 5 is the S parameter schematic diagram of Broadband circularly polarized antenna of the utility model based on annular patch；
Fig. 6 is that the axis of Broadband circularly polarized antenna of the utility model based on annular patch compares result schematic diagram.
The utility model aim realization, functional characteristics and advantage will in conjunction with the embodiments, will be in specific embodiment part one
And it is described further with reference to attached drawing.
Specific implementation mode
Further to illustrate technological means and effect that the utility model is taken to reach above-mentioned purpose, below in conjunction with
Specific embodiment of the present utility model, structure, feature and its effect is described in detail in attached drawing and preferred embodiment.It answers
Work as understanding, specific embodiment described herein is only used to explain the utility model, is not used to limit the utility model.
Fig. 1 is the structural schematic diagram of Broadband circularly polarized antenna preferred embodiment of the utility model based on annular patch.Fig. 2
For the side view of Broadband circularly polarized antenna of the utility model based on annular patch；Fig. 3 is that the utility model is based on annular patch
Broadband circularly polarized antenna top dielectric plate lower surface schematic diagram；Fig. 4 is broadband circle of the utility model based on annular patch
The upper surface schematic diagram of poliarizing antenna top dielectric plate.
Shown in Fig. 4, in the present embodiment, the Broadband circularly polarized antenna 1 based on annular patch includes upper
Layer dielectric-slab 10 and layer dielectric plate 20 are connected between the top dielectric plate 10 and layer dielectric plate 20 by four metal columns 30
It connects.Four strip feeder lines 101 are arranged in the lower surface of the top dielectric plate 10, and the upper surface of the top dielectric plate 10 includes ring
Shape patch 102.The upper surface of the layer dielectric plate 20 covers one layer of metallic copper 201, and the metallic copper 201 is as based on ring attaching
The metal of the Broadband circularly polarized antenna 1 of piece.
As shown in Fig. 2, four strip feeder lines 101 using the center of the annular patch 102 as the center of circle and with R2It is half
Diameter is uniformly distributed in the lower surface of the top dielectric plate 10, and each strip feeder line 101 is equal with the fan-shaped angle that the center of circle is constituted
And it is θ.
One end of each strip feeder line 101 is respectively provided with that there are one feed ports, and four feed ports (are respectively first ports
1011, second port 1012, third port 1013, the 4th port 1014) by four metal columns 30 give four strip feeder lines 101
Feed.Electromagnetic wave energy is coupled on annular patch 102 by four strip feeder lines 101, and annular patch 102 is by electromagnetic wave energy spoke
It is shot out.Four feed ports, the 1 feed-in constant amplitude of Broadband circularly polarized antenna based on annular patch to the utility model respectively successively
And phase differs 90 ° of signal, antenna, that is, radiation-curable circular polarisation electromagnetic wave successively.In the present embodiment, first port is given respectively
1011, second port 1012, third port 1013, the 4th port 1014 apply 0 °, and -90 °, -180 °, -270 ° of phase can make
It is right-handed circular polarization antenna to obtain Broadband circularly polarized antenna 1 of the utility model based on annular patch.
In the present embodiment, the plank that the top dielectric plate 10 and layer dielectric plate 20 use is described all for RO4350B
The thickness of plank is 0.762mm, dielectric constant 3.66.
In the present embodiment, the thickness of the top dielectric plate 10 and layer dielectric plate 20 is H1, length is L, wide
Degree is W；Distance after being connected by four metal columns 30 between the top dielectric plate 10 and layer dielectric plate 20 is H2, ring
The annular diameters of shape patch 102 are d1, the spacing between the inner ring and outer shroud of annular patch 102 is R1, four metal columns 30 it is straight
Diameter is d2, the thickness of four strip feeder lines 101 is S.Table 1 is broadband circle polarized day of the utility model based on annular patch
1 preferred embodiment parameter value of line.
The parameter preferred value of Broadband circularly polarized antenna of 1 the utility model of table based on annular patch
Referring to figure 5 and figure 6, Fig. 5 is that the S parameter of Broadband circularly polarized antenna of the utility model based on annular patch is illustrated
Figure；Fig. 6 is that the axis of Broadband circularly polarized antenna of the utility model based on annular patch compares result schematic diagram.In the present embodiment,
By the emulation of electromagnetic simulation software, Broadband circularly polarized antenna 1 of the utility model embodiment based on annular patch can be obtained
S parameter and axis compare result schematic diagram.From fig. 5, it can be seen that in 1.68GHz to 2.26GHz, the utility model embodiment base
In the Broadband circularly polarized antenna 1 of annular patch reflectance factor (| S11 |) in -10dB hereinafter, illustrating that the relative bandwidth of antenna can
To reach 28.7%, broadband character is realized.From fig. 6 it can be seen that in 1.62GHz to 2.26GHz, the axis of antenna is than knot
Fruit be less than 3dB, illustrate the utility model embodiment based on the Broadband circularly polarized antenna 1 of annular patch in working frequency range have it is good
Good circular polarisation performance.
Annular patch of the utility model embodiment by four strip feeder lines to antenna carries out couple feed, broadens entelechy
Change the impedance bandwidth and axial ratio bandwidth of antenna.It is found by emulation, in 1.68GHz to 2.26GHz, the reflectance factor of antenna (|
S11 |) in -10dB hereinafter, illustrate that the relative bandwidth of antenna can reach 28.7%, realize broadband character.It is arrived in 1.62GHz
In 2.26GHz, the axis ratio of antenna is less than 3dB, illustrates that the antenna has good circular polarisation performance in working frequency range.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure made based on the specification and figures of the utility model or equivalent function transformation, are applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (7)
1. a kind of Broadband circularly polarized antenna based on annular patch, which is characterized in that the broadband entelechy based on annular patch
It includes top dielectric plate and layer dielectric plate to change antenna, passes through four metal columns between the top dielectric plate and layer dielectric plate
Four strip feeder lines are arranged in the lower surface of connection, the top dielectric plate, and a ring is arranged in the upper surface of the top dielectric plate
One end of shape patch, each strip feeder line is respectively provided with there are one feed port, and four strip feeder lines are with the center of annular patch
The center of circle and with R2The lower surface of top dielectric plate, the fan-shaped angle that each strip feeder line is constituted with the center of circle are uniformly distributed in for radius
It is equal.
2. the Broadband circularly polarized antenna as described in claim 1 based on annular patch, which is characterized in that the layer dielectric plate
Upper surface cover one layer of metallic copper, the metal of metallic copper Broadband circularly polarized antenna based on annular patch as described in.
3. the Broadband circularly polarized antenna as described in claim 1 based on annular patch, which is characterized in that the radius R2Value
Value for 24mm, fan-shaped angle theta is 60 °.
4. the Broadband circularly polarized antenna as described in claim 1 based on annular patch, which is characterized in that the annular patch
Annular diameters are d1=8mm, the spacing between the inner ring and outer shroud of the annular patch is R1=32.7mm.
5. the Broadband circularly polarized antenna as described in claim 1 based on annular patch, which is characterized in that four metal columns
Diameter be d2The thickness of=2mm, four strip feeder lines are S=2mm.
6. such as the Broadband circularly polarized antenna described in any one of claim 1 to 5 based on annular patch, which is characterized in that described
The thickness of top dielectric plate and layer dielectric plate is H1It is W=that=0.762mm, length, which are L=130mm, width,
130mm。
7. the Broadband circularly polarized antenna as claimed in claim 6 based on annular patch, which is characterized in that the top dielectric plate
Distance after being connected by four metal columns between layer dielectric plate is H2=9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721917796.2U CN207677081U (en) | 2017-12-30 | 2017-12-30 | Broadband circularly polarized antenna based on annular patch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721917796.2U CN207677081U (en) | 2017-12-30 | 2017-12-30 | Broadband circularly polarized antenna based on annular patch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207677081U true CN207677081U (en) | 2018-07-31 |
Family
ID=62972206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721917796.2U Expired - Fee Related CN207677081U (en) | 2017-12-30 | 2017-12-30 | Broadband circularly polarized antenna based on annular patch |
Country Status (1)
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| CN (1) | CN207677081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430908A (en) * | 2020-04-02 | 2020-07-17 | 哈尔滨工程大学 | Broadband axial ratio wave beam circularly polarized microstrip antenna |
| CN113036439A (en) * | 2021-05-26 | 2021-06-25 | 成都天锐星通科技有限公司 | Microstrip antenna structure and communication equipment |
| CN114597640A (en) * | 2022-02-16 | 2022-06-07 | 南京信息工程大学 | Polarization reconfigurable antenna |
-
2017
- 2017-12-30 CN CN201721917796.2U patent/CN207677081U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430908A (en) * | 2020-04-02 | 2020-07-17 | 哈尔滨工程大学 | Broadband axial ratio wave beam circularly polarized microstrip antenna |
| CN111430908B (en) * | 2020-04-02 | 2021-03-30 | 哈尔滨工程大学 | Broadband axial ratio wave beam circularly polarized microstrip antenna |
| CN113036439A (en) * | 2021-05-26 | 2021-06-25 | 成都天锐星通科技有限公司 | Microstrip antenna structure and communication equipment |
| CN114597640A (en) * | 2022-02-16 | 2022-06-07 | 南京信息工程大学 | Polarization reconfigurable antenna |
| CN114597640B (en) * | 2022-02-16 | 2024-01-12 | 南京信息工程大学 | Polarization reconfigurable antenna |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20211230 |