CN206480760U - Broadband low section omnidirectional circular-polarized antenna - Google Patents
Broadband low section omnidirectional circular-polarized antenna Download PDFInfo
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- CN206480760U CN206480760U CN201720101119.7U CN201720101119U CN206480760U CN 206480760 U CN206480760 U CN 206480760U CN 201720101119 U CN201720101119 U CN 201720101119U CN 206480760 U CN206480760 U CN 206480760U
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- Prior art keywords
- medium substrate
- zeroth order
- upper layer
- parasitic radiation
- feeding network
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Abstract
The utility model discloses a kind of broadband low section omnidirectional circular-polarized antenna, and medium substrate includes upper layer medium substrate and layer dielectric substrate, and upper layer medium substrate and layer dielectric substrate-parallel are set, and upper layer medium substrate is located at the surface of layer dielectric substrate；Metal floor is applied on layer dielectric substrate；Zero order resonator, parasitic radiator and radial pattern feeding network are applied in upper layer medium substrate；Radial pattern feeding network is located at the center of upper layer medium substrate；The zeroth order resonant patch ring of Zero order resonator is located at the outside of radial pattern feeding network, and one end of each zeroth order resonance pin of Zero order resonator is connected with 1 zeroth order resonant patch, and the other end is connected with metal floor；Parasitic radiation paster ring sets the outside of zeroth order resonant patch, and one end of each parasitic radiation pin of parasitic radiation paster is connected with 1 parasitic radiation paster, other end suspension；The utility model can increase antenna impedance and directional diagram bandwidth, and keep good axle ratio characteristic.
Description
Technical field
The utility model is related to omnidirectional circular-polarized antenna technical field, and in particular to broadband low section Circular polarized omni-directional day
Line.
Background technology
Circular polarized antenna is because with that can receive, any polarized wave (vice versa), left/right hand circular polarization ripple be orthogonal, radiated wave
It is rotationally symmetrical, can suppress sexual intercourse interference and obtain extensive use the features such as anti-multipath reflects.With omnidirectional radiation characteristic
Circular polarisation is more covered all around and significant because can realize.However, omnidirectional circular-polarized antenna general at present, such as spiral
Dipole antenna, cylindrical conformal Antenna battle array, back-to-back antenna and monopole antenna etc. are all that structure (broad fire) is penetrated on side, because
And need to be disposed vertically and occupy larger space, it is impossible to the system suitable for much needing low section structure.Shen in our prior
Utility model patent " Zero order resonator and low section Zero order resonator omnidirectional circular-polarized antenna " (application number please:
201510522152.2) a kind of method that use Zero order resonator designs low section omnidirectional circular-polarized antenna is described in.It is this
Method provides a kind of practicable approach to design the omnidirectional circular-polarized antenna of low section, has great importance.But,
The higher quality factor of Zero order resonator are limited by, the frequency band for the circular polarized antenna that the utility application is provided is narrower,
Only 7MHz (1541-1548MHz, 0.4%), so narrow frequency band limit its application in broadband system.
Utility model content
It is to be solved in the utility model be existing omnidirectional circular-polarized antenna frequency band it is narrower the problem of there is provided broadband
Low section omnidirectional circular-polarized antenna.
To solve the above problems, the utility model is achieved through the following technical solutions：
Broadband low section omnidirectional circular-polarized antenna, including antenna body, the antenna body are humorous by medium substrate, zeroth order
Shake device, metal floor, radial pattern feeding network and feed probes composition；Medium substrate includes upper layer medium substrate and layer dielectric
Substrate, upper layer medium substrate and layer dielectric substrate-parallel are set, and upper layer medium substrate is located at the surface of layer dielectric substrate；
Metal floor is applied on layer dielectric substrate；Zero order resonator and radial pattern feeding network are applied in upper layer medium substrate；
Radial pattern feeding network is located at the center of upper layer medium substrate；Zero order resonator is by the zeroth order resonant patch of more than 2 and 2
Zeroth order resonance pin composition above；Zeroth order resonant patch is identical with the quantity of zeroth order resonance pin；Zeroth order resonant patch ring is set
In the outside of radial pattern feeding network；One end of each zeroth order resonance pin is connected with 1 zeroth order resonant patch, the other end and gold
Possession plate connection；One end of feed probes is connected with the center of radial pattern feeding network, and the other end connects with feed；Its difference
Place is to still further comprise parasitic radiator；The parasitic radiator is applied in upper layer medium substrate；Parasitic radiator is by 2
Parasitic radiation paster above and the composition of the parasitic radiation pin of more than 2；The number of parasitic radiation paster and parasitic radiation pin
Amount is identical；Parasitic radiation paster ring sets the outside of zeroth order resonant patch；One end of each parasitic radiation pin and 1 parasitic radiation
Paster is connected, other end suspension.
In such scheme, broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：
Each parasitic radiation paster is one section of circular arc；All parasitic radiation pasters head and the tail are arranged at intervals, and concentric and with radius
Surround 1 discontinuously annular；The center of the annular and the center superposition of radial pattern feeding network.
In such scheme, each zeroth order resonant patch is one section of circular arc；All zeroth order resonant patch head and the tail are arranged at intervals,
And concentric and 1 discontinuously annular is surrounded with radius；The center of the annular and the center weight of radial pattern feeding network
Close.
In such scheme, parasitic radiation paster is identical with the quantity of zeroth order resonant patch, and 1 parasitic radiation paster correspondence
It is located at the radial outside of 1 zeroth order resonant patch.
In such scheme, all parasitic radiation pins are arranged between upper layer medium substrate and layer dielectric substrate, and
It is vertical with plane residing for upper layer medium substrate and layer dielectric substrate.
In such scheme, all zeroth order resonance pins are arranged between upper layer medium substrate and layer dielectric substrate, and
It is vertical with plane residing for upper layer medium substrate and layer dielectric substrate.
In such scheme, radial pattern feeding network is made up of the feed branch of more than 2；Each feed branch is by 1
Feed circular arc and 1 feed branch line is constituted；It is one section of circular arc to feed circular arc, and feed branch line is one section of transmission line, feed circle
One end of arc is connected with the rear end of feed branch line, and the front end of all feed branch lines forms the radial pattern with linking together
The center of feeding network.
In such scheme, Zero order resonator, parasitic radiator and radial pattern feeding network are applied to upper layer medium substrate
Upper surface.
In such scheme, metal floor is applied to the lower surface of layer dielectric substrate.
Compared with prior art, the utility model has following features：
1) second resonant frequency has been encouraged using the parasitic radiation paster of circular arc in the periphery of zeroth order resonant patch,
So as to increase the impedance bandwidth of antenna；
2) vertical pin is connected in one end of parasitic radiation paster, increases the vertical radiation of antenna, improves antenna
Axial ratio bandwidth；
3) air dielectric is used between upper strata paster and subfloor, antenna Q values are reduced, so as to further increase antenna
Impedance bandwidth；
4) increase antenna impedance and directional diagram bandwidth using multiple technologies, and keep good axle ratio characteristic, realize wideband
The low section omnidirectional circular-polarized antenna of band；
5) antenna thickness is only 0.08 λ, the characteristics of with low section；
6) suitable for the system of broadband, low section, circular polarisation and omnidirectional radiation.
Brief description of the drawings
Fig. 1 is the stereogram of broadband low section omnidirectional circular-polarized antenna；
Fig. 2 is the top view of broadband low section omnidirectional circular-polarized antenna；
Fig. 3 is the upward view of broadband low section omnidirectional circular-polarized antenna；
Fig. 4 is the side view of broadband low section omnidirectional circular-polarized antenna；
Fig. 5 is the S11 curves of antenna embodiment；
Fig. 6 be antenna embodiment radiator plane axle than AR curve；
Fig. 7 is antenna pattern of the antenna embodiment in 1.37GHz；
Fig. 8 is antenna pattern of the antenna embodiment in 1.45GHz；
Fig. 9 is antenna pattern of the antenna embodiment in 1.50GHz；
Figure 10 is antenna pattern of the antenna embodiment in 1.58GHz.
Label in figure：1-1, zeroth order resonant patch；1-2, zeroth order resonance pin；2-1, parasitic radiation paster；2-2, parasitism
Radiate pin；3-1 upper layer medium substrates；3-2 layer dielectric substrates；4th, metal floor；5th, radial pattern feeding network；6th, feed is visited
Pin.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in detail embodiment, the present embodiment is with practical new
It is lower premised on type technical scheme to be implemented, detailed embodiment and specific operation process is given, but it is of the present utility model
Protection domain is not limited to following embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the utility model protection.
Broadband low section omnidirectional circular-polarized antenna, as Figure 1-4, is situated between by Zero order resonator, parasitic radiator, upper strata
Matter substrate 3-1, layer dielectric substrate 3-2, metal floor 4, radial pattern feeding network 5 and feed probes 6 are constituted.
Antenna haves three layers medium, including the upper layer medium substrate 3-1 positioned at upper strata, the air layer positioned at intermediate layer and is located at
The layer dielectric substrate 3-2 of lower floor.Upper layer medium substrate 3-1 and layer dielectric substrate 3-2 dielectric constant can any value, be situated between
The radius of matter substrate is rs=44mm, and medium substrate 3-1 and 3-2 relative dielectric constant is all 2.2 in the present embodiment.Upper strata
Medium substrate 3-1 is used to support zeroth order resonant patch 1-1, parasitic radiation paster 2-1 and radial pattern feeding network 5.Layer dielectric
Substrate 3-2 is used to support metal floor 4.Upper layer medium substrate 3-1 and layer dielectric substrate 3-2 are by shorting pin 1-2 and parasitism
Radiate pin 2-2 supports.Intermediate layer is air layer, and thickness is h1=14mm.
Zero order resonator, parasitic radiator, metal floor 4, radial pattern feeding network 5 and feed probes 6 constitute antenna
Functional module.
Metal floor 4 is circular configuration, and radius is rg=27.7mm, is applied to the layer dielectric substrate 3-2 back side.
Zero order resonator is made up of 4 zeroth order resonant patch 1-1 and 4 zeroth order resonance pin 1-2.Each zeroth order resonance patch
Piece 1-1 is one section of circular arc.4 zeroth order resonant patch 1-1 are applied on upper layer medium substrate 3-1, and concentric and same half
Footpath forms a circle, at intervals of g1=1mm between every 2 zeroth order resonant patch 1-1 head end and tail end, thus constitutes half outside 1
Footpath is r1=28mm, and width is W1=3mm incomplete annular discontinuously.Each zeroth order resonant patch 1-1 is respectively provided with 1
Zeroth order resonance pin 1-2, zeroth order resonance pin 1-2 perpendicular to plane residing for zeroth order resonant patch 1-1 and metal floor 4, and
It is embedded into the air layer between upper layer medium substrate 3-1 and the basic 3-2 of layer dielectric.Zeroth order resonance pin 1-2 one end with it is every
Individual zeroth order resonant patch 1-1 is connected, and the other end is connected with metal floor 4.
Parasitic radiator is made up of 4 parasitic radiation paster 2-1 and 4 parasitic radiation pin 2-2.Each parasitic radiation patch
Piece 2-1 is one section of circular arc.4 parasitic radiation paster 2-1 be applied on upper layer medium substrate 3-1 and with zeroth order resonant patch
1-1 coplines, between every 2 parasitic radiation pasters 2-1 head end and tail end at intervals of g2=10mm, thus constitute 1 it is outer
Radius is r2=43.5mm, and width is W2=2mm incomplete annular discontinuously.Each parasitic radiation paster 2-1 is respectively set
There are 1 parasitic radiation pin 2-2, the parasitic radiation pin 2-2 to be embedded into upper strata perpendicular to plane residing for parasitic radiation paster
In air layer between medium substrate 3-1 and the basic 3-2 of layer dielectric.Parasitic radiation pin 2-2 one end and each parasitic spoke
Penetrate paster 2-1 to be connected, another section passes through layer dielectric substrate 3-2 and suspend.
Radial pattern feeding network 5 is applied on upper layer medium substrate 3-1, and positioned at the middle part of the antenna.Radial pattern is fed
Network 5 includes the feed branch of 4 distributions that are centrosymmetric.Each feed branch is made up of feed circular arc and feed branch line,
It is one section of circular arc to feed circular arc, and feed branch line is one section of transmission line, feeds one end of circular arc and connects with the rear end of feed branch line
Connect, the front end of 4 feed branch lines links together, form the center of 1 radial pattern feeding network 5.The width of feed branch line
Spend for W0=0.5mm, the radius of feed circular arc is r0=10.8mm, and spacing is g0=4mm.
Incomplete annular and parasitic radiation paster 2- that radial pattern feeding network 5, zeroth order resonant patch 1-1 are constituted
The 1 incomplete annular three's concentric constituted, the center in the center of circle is the center of antenna.Feed probes 6 are located at day
The center of line, perpendicular to plane residing for feed branch and metal floor 4, and is embedded into upper layer medium substrate 3-1 and lower floor Jie
In air layer between the basic 3-2 of matter.The one end of feed probes 6 is connected with the center of radial pattern feeding network 5, and one end passes through metal
Floor 4 connects with the feed of bottom.
Fig. 5 is the S11 curves of antenna embodiment.Typically, if S11 of the antenna in a certain frequency range is less than -10dB, then it is assumed that
Antenna is good in frequency range internal impedance matching, and the band bandwidth is the impedance bandwidth of antenna.Embodiment antenna is in 1.37-
S11 is less than -10dB in the range of 1.69GHz, and matching is good；Therefore, embodiment antenna has 320MHz impedance bandwidth, i.e.,
20.9% impedance bandwidth (relatively with centre frequency 1.53GHz).
Fig. 6 be antenna embodiment radiator plane axle than AR curve.Typically, if axle of the antenna in a certain frequency range compares AR
Less than 3dB, then it is assumed that antenna has good circular polarization characteristics in the frequency range, the band bandwidth is the axial ratio bandwidth of antenna.
Embodiment antenna AR in the range of 1.26-1.58GHz is less than 3dB, and circular polarization characteristics are good；Therefore embodiment antenna has
The axial ratio bandwidth of 320MHz axial ratio bandwidth, i.e., 22.5% (relatively with centre frequency 1.42GHz).
From Fig. 5 and Fig. 6, embodiment antenna is in the range of 1.37-1.58GHz, i.e., with good impedance matching,
With good circular polarization characteristics；Therefore the working band of antenna is the bandwidth of operation of 210MHz, i.e., 14.2%.
Fig. 7, Fig. 8, Fig. 9 and Figure 10 are respectively antenna embodiment in 1.37GHz, 1.45GHz, 1.50GHz and 1.58GHz
Antenna pattern.A is the directional diagram in xy faces in each figure, and B is the directional diagram in xz faces.As seen from the figure, antenna embodiment is at these
The right-handed circular polarization ripple of frequency all radiates right-handed circular polarization ripple much larger than left-hand circular polarization ripple, i.e. antenna in whole frequency range.My god
Line embodiment all has similar directional diagram, i.e. antenna embodiment in the circular direction that x/y plane is omnidirectional in these frequencies
Figure, is dumb-bell shape directional diagram in xz planes.Therefore, antenna embodiment has good omnidirectional radiation characteristic in whole frequency range.
The gain of antenna embodiment is about 1.24-1.56dBi in whole frequency range.
The utility model is related to omnidirectional circular-polarized antenna technical field.There is provided a kind of with broadband, the omnidirectional of low section
Circular polarized antenna.The utility model obtains the circularly polarised wave of omnidirectional radiation using four new Zero order resonator composition ring array；
And low Q values are being obtained with air dielectric so as to increase bandwidth；Meanwhile, the ring array constituted using four parasitic radiation pasters is entered
One step increases bandwidth, and improves polarization characteristic with parasitic radiation pin, so that antenna obtains good entelechy in wider frequency section
Change characteristic.Antenna designed by the utility model is applicable in the system of low section omnidirectional circular-polarized antenna.
Finally it should be noted that the design parameter in the embodiment is merely to clearly state the reality of utility model people
New verification process is used, scope of patent protection of the present utility model is not intended to limit；Although with reference to foregoing embodiments to this
Utility model is described in detail, it will be understood by those within the art that：It still can be to foregoing embodiments
Described technical scheme is modified, or carries out equivalent substitution to which part or all technical characteristic；And these are repaiied
Change or replace, the essence of appropriate technical solution is departed from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. broadband low section omnidirectional circular-polarized antenna, including antenna body, the antenna body is by medium substrate, zeroth order resonance
Device, metal floor (4), radial pattern feeding network (5) and feed probes (6) composition；
Medium substrate includes upper layer medium substrate (3-1) and layer dielectric substrate (3-2), upper layer medium substrate (3-1) and lower floor
Medium substrate (3-2) be arranged in parallel, and upper layer medium substrate (3-1) is located at the surface of layer dielectric substrate (3-2)；
Metal floor (4) is applied on layer dielectric substrate (3-2)；
Zero order resonator and radial pattern feeding network (5) are applied in upper layer medium substrate (3-1)；Radial pattern feeding network (5)
Positioned at upper layer medium substrate (3-1) center；Zero order resonator is by the zeroth order resonant patch (1-1) of more than 2 and more than 2
Zeroth order resonance pin (1-2) composition；Zeroth order resonant patch (1-1) is identical with the quantity of zeroth order resonance pin (1-2)；Zeroth order is humorous
Paster (1-1) ring that shakes is located at the outside of radial pattern feeding network (5)；One end of each zeroth order resonance pin (1-2) and 1 zeroth order
Resonant patch (1-1) is connected, and the other end is connected with metal floor (4)；
One end of feed probes (6) is connected with the center of radial pattern feeding network (5), and the other end connects with feed；
It is characterized in that：
Still further comprise parasitic radiator；The parasitic radiator is applied in upper layer medium substrate (3-1)；Parasitic radiator by
The parasitic radiation paster (2-1) of more than 2 and the composition of the parasitic radiation pin (2-2) of more than 2；Parasitic radiation paster (2-1)
It is identical with the quantity of parasitic radiation pin (2-2)；Parasitic radiation paster (2-1) ring sets zeroth order resonant patch (1-1) outside；Often
One end of individual parasitic radiation pin (2-2) is connected with 1 parasitic radiation paster (2-1), other end suspension.
2. broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：Each parasitic radiation patch
Piece (2-1) is one section of circular arc；All parasitic radiation pasters (2-1) head and the tail are arranged at intervals, and concentric and surround 1 with radius
Individual discontinuously annular；The center of the annular and the center superposition of radial pattern feeding network (5).
3. broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：Each zeroth order resonance patch
Piece (1-1) is one section of circular arc；All zeroth order resonant patch (1-1) head and the tail are arranged at intervals, and concentric and surround 1 with radius
Individual discontinuously annular；The center of the annular and the center superposition of radial pattern feeding network (5).
4. the broadband low section omnidirectional circular-polarized antenna according to any one in claim 1-3, it is characterised in that：Post
Raw radiation patch (2-1) is identical with the quantity of zeroth order resonant patch (1-1), and 1 parasitic radiation paster (2-1) is correspondingly arranged at 1
The radial outside of individual zeroth order resonant patch (1-1).
5. broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：All parasitic radiation pins
Nail (2-2) be arranged between upper layer medium substrate (3-1) and layer dielectric substrate (3-2), and with upper layer medium substrate (3-1)
It is vertical with plane residing for layer dielectric substrate (3-2).
6. broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：All zeroth order resonance pins
Nail (1-2) be arranged between upper layer medium substrate (3-1) and layer dielectric substrate (3-2), and with upper layer medium substrate (3-1)
It is vertical with plane residing for layer dielectric substrate (3-2).
7. broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：Radial pattern feeding network
(5) it is made up of the feed branch of more than 2；Each feed branch is constituted by 1 feed circular arc and 1 feed branch line；Feedback
Electric circular arc is one section of circular arc, and feed branch line is one section of transmission line, and one end of feed circular arc is connected with the rear end of feed branch line,
The front end of all feed branch lines forms the center of the radial pattern feeding network (5) with linking together.
8. broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：Zero order resonator, post
Raw radiator and radial pattern feeding network (5) are applied to upper layer medium substrate (3-1) upper surface.
9. broadband low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that：Metal floor (4) is applied
It is affixed on layer dielectric substrate (3-2) lower surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720101119.7U CN206480760U (en) | 2017-01-24 | 2017-01-24 | Broadband low section omnidirectional circular-polarized antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101119.7U CN206480760U (en) | 2017-01-24 | 2017-01-24 | Broadband low section omnidirectional circular-polarized antenna |
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| CN108183314A (en) * | 2017-12-07 | 2018-06-19 | 西安电子科技大学 | A kind of Wideband bimodulus circular polarization microstrip antenna, car antenna, satellite |
| CN108199136A (en) * | 2017-11-22 | 2018-06-22 | 天津津航计算技术研究所 | A kind of directional diagram reconstructable aerial based on PIN pipes |
| CN108666747A (en) * | 2018-04-27 | 2018-10-16 | 北京机电工程研究所 | A kind of low section array antenna |
| CN108832290A (en) * | 2018-06-22 | 2018-11-16 | 电子科技大学 | Three arm circular polarized antennas |
| CN110635228A (en) * | 2019-08-27 | 2019-12-31 | 南通大学 | Dual-passband circularly polarized dielectric resonator antenna |
| CN111092297A (en) * | 2020-01-09 | 2020-05-01 | 上海交通大学 | Low-profile multi-frequency omnidirectional vertical polarization antenna |
| CN113097704A (en) * | 2021-03-16 | 2021-07-09 | 华南理工大学 | Low-profile dual-frequency common-caliber monopole antenna based on cross-layer folding structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108199136A (en) * | 2017-11-22 | 2018-06-22 | 天津津航计算技术研究所 | A kind of directional diagram reconstructable aerial based on PIN pipes |
| CN108183314A (en) * | 2017-12-07 | 2018-06-19 | 西安电子科技大学 | A kind of Wideband bimodulus circular polarization microstrip antenna, car antenna, satellite |
| CN108666747A (en) * | 2018-04-27 | 2018-10-16 | 北京机电工程研究所 | A kind of low section array antenna |
| CN108666747B (en) * | 2018-04-27 | 2020-01-10 | 北京机电工程研究所 | Low-profile array antenna |
| CN108832290A (en) * | 2018-06-22 | 2018-11-16 | 电子科技大学 | Three arm circular polarized antennas |
| CN108832290B (en) * | 2018-06-22 | 2020-01-17 | 电子科技大学 | Three-arm circularly polarized antenna |
| CN110635228A (en) * | 2019-08-27 | 2019-12-31 | 南通大学 | Dual-passband circularly polarized dielectric resonator antenna |
| CN111092297A (en) * | 2020-01-09 | 2020-05-01 | 上海交通大学 | Low-profile multi-frequency omnidirectional vertical polarization antenna |
| CN111092297B (en) * | 2020-01-09 | 2021-11-09 | 上海交通大学 | Low-profile multi-frequency omnidirectional vertical polarization antenna |
| CN113097704A (en) * | 2021-03-16 | 2021-07-09 | 华南理工大学 | Low-profile dual-frequency common-caliber monopole antenna based on cross-layer folding structure |
| CN113097704B (en) * | 2021-03-16 | 2022-06-14 | 华南理工大学 | Low-profile dual-frequency common-caliber monopole antenna based on cross-layer folding structure |
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Granted publication date: 20170908 Termination date: 20220124 |