CN107834167A - The broadband four-arm spiral antenna realized using gap - Google Patents
The broadband four-arm spiral antenna realized using gap Download PDFInfo
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- CN107834167A CN107834167A CN201710945902.6A CN201710945902A CN107834167A CN 107834167 A CN107834167 A CN 107834167A CN 201710945902 A CN201710945902 A CN 201710945902A CN 107834167 A CN107834167 A CN 107834167A
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- dielectric
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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
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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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Abstract
The present invention discloses a kind of broadband four-arm spiral antenna realized using gap, including cylindrical radiation body and feeding network, the outer surface of the cylindrical radiation body is provided with four spiral radiation arms, one end of each spiral radiation arm is provided with a metal column, four spiral radiation arms are connected in turn in four circular patch output ends of feeding network by respective metal column, wherein：The cylindrical radiation body includes four blocks of dielectric-slabs, the cylindrical radiation body is the cylindrical barrel that four blocks of dielectric-slabs are bent to form, wherein, each spiral radiation arm is printed on one block of dielectric-slab of cylindrical radiation body, and a gap is set on each spiral radiation arm.The present invention make it that two resonance frequencies are close by using the conceptual design in built-in gap, realizes bigger relatively wide band, is advantageous to receive the signal of more wide-band.
Description
Technical field
The present invention relates to technical field of satellite communication, more particularly to a kind of arm spiral day of broadband four realized using gap
Line.
Background technology
Compatibility operation will be realized between following satellite navigation system, realizes a certain degree of resource-sharing, and establish
Joint navigation system is played, further improves navigation accuracy.Compared to single satellite navigation system, in the space of areal can
See that number of satellite increases, thus integrate multiple satellite navigation systems multisystem compatible navigation system can make positioning precision, can
Greatly improved by property, security, continuity, efficiency, this causes multisystem compatible navigation to turn into becoming for Future Satellite navigation development
Gesture.
A very important part during antenna system forms as satellite system, it is possible to achieve the phase between satellite and ground
Mutual communication, and ground, in face of transmission of remote control and telemetry command of satellite etc., therefore, the stability and reliability of antenna system are very
Determine whether satellite can the predetermined task of successful execution in big degree, it can be seen that the quality of antenna performance is to navigation system
Performance has tremendous influence.So the design of satellite antenna also turns into a vital research topic.Four arm spiral days
Line has beautiful cardioid pattern, good front and rear ratio, excellent wide-angle circular polarization characteristics.So four-arm spiral antenna
Study the extremely heated handful of four-arm spiral antenna of increasing concern, to be especially applicable in multisystem compatibility satellite navigation.
The research direction of four-arm spiral antenna also has multifrequency, broadband and miniaturization., can be in main spoke for broadband technology
Additional stray arm on arm is penetrated, adjusts the size of parasitic, makes the resonant frequency of parasitic near resonance caused by primary radiation arm,
So as to spreading antenna bandwidth.However, the bandwidth of traditional four-arm spiral antenna can only achieve 5%-8% relative bandwidth,
So that the signal corresponding frequency band that antenna receives is narrower.
The content of the invention
The main object of the present invention provides a kind of broadband four-arm spiral antenna realized using gap, it is intended to solves existing
The opposite band width of four-arm spiral antenna is without the technical problem that is received beneficial to signal.
To achieve the above object, the invention provides a kind of broadband four-arm spiral antenna realized using gap, including circle
Cylindricality radiant body and feeding network, the outer surface of the cylindrical radiation body are provided with four spiral radiation arms, each spiral
One end of radiation arm is provided with a metal column, and four spiral radiation arms are connected to feeding network in turn by respective metal column
Four circular patch output ends on, wherein：
The cylindrical radiation body includes four blocks of dielectric-slabs, and the cylindrical radiation body is four pieces of dielectric-slab Curveds
Into cylindrical barrel, each spiral radiation arm is printed on one block of dielectric-slab of cylindrical radiation body, on each spiral radiation arm
One gap is set.
Preferably, diagonal of each spiral radiation arm along one block of dielectric-slab is printed.
Preferably, each spiral radiation arm is quadrilateral structure in the horizontal plane.
Preferably, the quadrilateral structure includes four end points, wherein, two end points are arranged at the vertical of the dielectric-slab
Bian Shang, two other end points are arranged on the bottom level side of dielectric-slab, have one in two be arranged on vertical edge end points
End points overlaps with the end points at the top of the diagonal of dielectric-slab, there is an end points and medium in two be arranged in horizontal sides end points
The end points of the diagonal bottom of plate overlaps.
Preferably, the hollow space in the cylindrical radiation body also adds plastic foam.
Preferably, the height T of the metal column is 3 millimeters, and the catercorner length L of the dielectric-slab is 180 millimeters, described
The radius R for the cylindrical radiation body that four dielectric-slabs are formed is 30.5 millimeters, the bottom level side in the gap to dielectric-slab
Vertical height K is 46.5 millimeters, and the width in the gap is T1For 1.5 millimeters, the height C of the vertical edge of the dielectric-slab is
136 millimeters, the width P of the horizontal sides of the dielectric-slab is 117 millimeters, horizontal edge direction of the spiral radiation arm along dielectric-slab
Two end points length C1For 17.2 millimeters, the length of two end points of the spiral radiation arm along the vertical edge direction of dielectric-slab
Spend C2For 12 millimeters.
Preferably, the operating frequency range of the four-arm spiral antenna is 0.9GHz -1.265GHz, and relative bandwidth is
33.7%.
Preferably, the feeding network is integrated on the pcb board of circle, relative dielectric constant 3.16, the thickness of slab of the pcb board
For 0.752mm.
Preferably, the relative dielectric constant of the dielectric-slab is 2.2.
Compared to prior art, the broadband four-arm spiral antenna of the present invention realized using gap uses above-mentioned technical side
Case, following technique effect is reached：Make it that two resonance frequencies are close by using the conceptual design in built-in gap, realize
Bigger relatively wide band, be advantageous to receive the signal of more wide-band.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram for the broadband four-arm spiral antenna preferred embodiment that the present invention is realized using gap；
Fig. 2 is solid of the present invention using spiral radiation arm in the broadband four-arm spiral antenna preferred embodiment of gap realization
Structural representation；
Fig. 3 is that a quarter planar development of the radiant body for the broadband four-arm spiral antenna that the present invention is realized using gap shows
It is intended to；
Fig. 4 is that the S parameter simulation result of the feeding network for the broadband four-arm spiral antenna that the present invention is realized using gap shows
It is intended to.
The object of the invention is realized, functional characteristics and advantage will will join in the lump in specific embodiment part in conjunction with the embodiments
It is described further according to accompanying drawing.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that above-mentioned purpose is taken, below in conjunction with accompanying drawing
And preferred embodiment, embodiment, structure, feature and its effect of the present invention are described in detail.It should be appreciated that this
The specific embodiment of place description is not intended to limit the present invention only to explain the present invention.
Shown in reference picture 1, Fig. 1 is the solid for the broadband four-arm spiral antenna preferred embodiment that the present invention is realized using gap
Structural representation.Fig. 2 is that the present invention utilizes spiral radiation arm in the broadband four-arm spiral antenna preferred embodiment of gap realization
Dimensional structure diagram.In the present embodiment, the broadband four-arm spiral antenna realized using gap includes feeding network 10
With cylindrical radiation body 20, the outer surface of the cylindrical radiation body 20 is provided with four spiral radiation arms 30, each spiral
One end of radiation arm 30 is provided with a metal column 40.Four spiral radiation arms 30 are connected in turn by respective metal column 40
In four circular patch output ends 50 of feeding network 10, the feeding network 10 is integrated on the pcb board of circle.Pcb board is adopted
It is RO4350B with specific sheet material type, wherein relative dielectric constant 3.16, thickness of slab 0.752mm.Further, every spiral shell
A gap 60 is additionally provided with rotation radiation arm 30.The height of the metal column 40 is T.
With reference to shown in figure 3, Fig. 3 be the present invention using gap realize broadband four-arm spiral antenna radiant body four/
One planar development schematic diagram.The cylindrical radiation body 20 is made up of the dielectric-slab 200 of the frivolous rectangle structure of four pieces of softnesses,
Specific sheet material type is the dielectric-slab 200 of FR4 types, wherein relative dielectric constant 2.2, during four blocks of dielectric-slabs 200 are bent to
Empty cylindrical radiation body 20.Each spiral radiation arm 30 is printed on one block of dielectric-slab 200 of cylindrical radiation body 20, and often
Diagonal of the individual spiral radiation arm 30 along the dielectric-slab 200 is printed, and a gap 60 is set on each spiral radiation arm 30.Each
Spiral radiation arm 30 is quadrilateral structure in the horizontal plane, the quadrilateral structure include four end points (A1, A2 as shown in Figure 3,
A3 and A4), wherein, it is C that two end points, which are arranged on the vertical edge of dielectric-slab 200 (i.e. A1 and A2 in Fig. 3) and distance,2, in addition
It is C that two end points, which are arranged on the bottom level side of dielectric-slab 200 (i.e. A3 and A4 in Fig. 3) and distance,1, it is arranged on vertical edge
Two end points in there is an end points to overlap (i.e. A1 in Fig. 3) with the end points at the top of the diagonal of dielectric-slab 200, be arranged at water
There is an end points to be overlapped with the end points of the diagonal bottom of dielectric-slab 200 (i.e. A3 in Fig. 3) in two end points on flat side.Enter
One step, the gap 60 is the gap of horizontal direction, and the vertical height on the bottom level side in the gap 60 to dielectric-slab 200 is
K, the width in the gap 60 is T1.The height of the vertical edge of the dielectric-slab 200 is C, the horizontal sides of the dielectric-slab 200
Width is P, and the catercorner length of the dielectric-slab 200 is L.The cylindrical radiation body 20 that four dielectric-slabs 200 are formed
Radius is R.
During cylindrical radiation body 20 is made, four blocks of dielectric-slabs 200 are bent to Fig. 1 barrel shape blend compounds
Band is pasted.In other embodiments, the hollow space in the cylindrical radiation body 20 also adds plastic foam.
The parameter such as following table：
| Parameter | P | L | K | C |
| Size (mm) | 117 | 180 | 46.5 | 136 |
| Parameter | C1 | C2 | T | T1 |
| Size (mm) | 17.2 | 12 | 3 | 1.5 |
| Parameter | R | |||
| Size (mm) | 30.5 |
With reference to shown in figure 4, Fig. 4 is the S ginsengs of the feeding network for the broadband four-arm spiral antenna that the present invention is realized using gap
Number simulation result schematic diagram.From fig. 4, it can be seen that (remaining ginseng when the distance K changes in gap 60 to the bottom of spiral radiation arm 30
In the case that number is constant, i.e. P, L, C1、C2、T、T1, in the case of the parameter constant such as R), two resonance frequencies in reflection coefficient curve
The distance of point (two troughs i.e. in every curve of Fig. 4) also changes (i.e. frequency of two troughs between transverse axis in Fig. 4
Difference).When spiral radiation arm 30 is without loading gap, it is observed that two resonance frequencies, respectively positioned at 0.5GHz and
1.4GHz.When introducing gap 60, with K reduction, the distance of two resonance points can reduce, the final four-arm spiral antenna
Broadband is formed by double frequency.Finally, the value for selecting K is 46.5mm, and now the operating frequency range of the four-arm spiral antenna is
0.9GHz -1.265GHz, relative bandwidth 33.7%.Two resonance frequencies are adjacent to each other can just to make the four arms spiral day
Line forms broadband character.
The broadband four-arm spiral antenna of the present invention realized using gap is made using the gap built in spiral radiation arm 30
It is close to obtain two resonance frequencies, realizes bigger relatively wide band.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or the equivalent function conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of broadband four-arm spiral antenna realized using gap, including cylindrical radiation body and feeding network, its feature are existed
In the outer surface of the cylindrical radiation body is provided with four spiral radiation arms, and one end of each spiral radiation arm is provided with
One metal column, four circular patches that four spiral radiation arms are connected to feeding network in turn by respective metal column export
On end, wherein：
The cylindrical radiation body includes four blocks of dielectric-slabs, and cylindrical radiation body four blocks of dielectric-slabs are bent to form
Cylindrical barrel, each spiral radiation arm are printed on one block of dielectric-slab of cylindrical radiation body, are set on each spiral radiation arm
One gap.
2. the broadband four-arm spiral antenna realized as claimed in claim 1 using gap, it is characterised in that each spiral radiation
Diagonal of the arm along one block of dielectric-slab is printed.
3. the broadband four-arm spiral antenna realized as claimed in claim 2 using gap, it is characterised in that each spiral radiation
Arm is quadrilateral structure in the horizontal plane.
4. the broadband four-arm spiral antenna realized as claimed in claim 3 using gap, it is characterised in that the quadrangle knot
Structure includes four end points, wherein, two end points are arranged on the vertical edge of the dielectric-slab, and two other end points is arranged at medium
On the bottom level side of plate, there is the end at the top of the diagonal of an end points and dielectric-slab in two end points being arranged on vertical edge
Point overlaps, and has an end points and the end points of the diagonal bottom of dielectric-slab to overlap in two end points being arranged in horizontal sides.
5. the broadband four-arm spiral antenna realized as claimed in claim 1 using gap, it is characterised in that the cylindrical spoke
Hollow space in beam is added with plastic foam.
6. the broadband four-arm spiral antenna realized as claimed in claim 1 using gap, it is characterised in that the metal column
Height T is 3 millimeters, and the catercorner length L of the dielectric-slab is 180 millimeters, the cylindrical radiation that four dielectric-slabs are formed
The radius R of body is 30.5 millimeters, and the vertical height K on the bottom level side in the gap to dielectric-slab is 46.5 millimeters, the seam
The width of gap is T1For 1.5 millimeters, the height C of the vertical edge of the dielectric-slab is 136 millimeters, the horizontal sides of the dielectric-slab
Width P is 117 millimeters, length C of the spiral radiation arm along two end points of the horizontal edge direction of dielectric-slab1For 17.2 millis
Rice, length C of the spiral radiation arm along two end points of the vertical edge direction of dielectric-slab2For 12 millimeters.
7. the broadband four-arm spiral antenna realized as claimed in claim 6 using gap, it is characterised in that the four arms spiral
The operating frequency range of antenna is 0.9GHz -1.265GHz, relative bandwidth 33.7%.
8. the broadband four-arm spiral antenna realized as claimed in claim 1 using gap, it is characterised in that the feeding network
It is integrated on the pcb board of circle, relative dielectric constant 3.16, the thickness of slab 0.752mm of the pcb board.
9. the broadband four-arm spiral antenna realized as claimed in claim 1 using gap, it is characterised in that the dielectric-slab
Relative dielectric constant is 2.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945902.6A CN107834167A (en) | 2017-09-30 | 2017-09-30 | The broadband four-arm spiral antenna realized using gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945902.6A CN107834167A (en) | 2017-09-30 | 2017-09-30 | The broadband four-arm spiral antenna realized using gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107834167A true CN107834167A (en) | 2018-03-23 |
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ID=61648013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710945902.6A Pending CN107834167A (en) | 2017-09-30 | 2017-09-30 | The broadband four-arm spiral antenna realized using gap |
Country Status (1)
| Country | Link |
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| CN (1) | CN107834167A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110313104A (en) * | 2018-10-31 | 2019-10-08 | 深圳市大疆创新科技有限公司 | Helical antenna and communication equipment |
| CN110326161A (en) * | 2018-10-31 | 2019-10-11 | 深圳市大疆创新科技有限公司 | Helical antenna and communication equipment |
| CN110690561A (en) * | 2019-10-28 | 2020-01-14 | 国网思极神往位置服务（北京）有限公司 | Broadband miniaturized antenna applied to satellite navigation terminal and working method thereof |
-
2017
- 2017-09-30 CN CN201710945902.6A patent/CN107834167A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110313104A (en) * | 2018-10-31 | 2019-10-08 | 深圳市大疆创新科技有限公司 | Helical antenna and communication equipment |
| CN110326161A (en) * | 2018-10-31 | 2019-10-11 | 深圳市大疆创新科技有限公司 | Helical antenna and communication equipment |
| CN110690561A (en) * | 2019-10-28 | 2020-01-14 | 国网思极神往位置服务（北京）有限公司 | Broadband miniaturized antenna applied to satellite navigation terminal and working method thereof |
| CN110690561B (en) * | 2019-10-28 | 2023-09-22 | 国网思极神往位置服务（北京）有限公司 | Broadband miniaturized antenna applied to satellite navigation terminal and working method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180323 |
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| WD01 | Invention patent application deemed withdrawn after publication |