CN205621858U - Two circular polarization microstrip antenna of miniaturized low section broadband - Google Patents
Two circular polarization microstrip antenna of miniaturized low section broadband Download PDFInfo
- Publication number
- CN205621858U CN205621858U CN201620477655.2U CN201620477655U CN205621858U CN 205621858 U CN205621858 U CN 205621858U CN 201620477655 U CN201620477655 U CN 201620477655U CN 205621858 U CN205621858 U CN 205621858U
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- Prior art keywords
- medium substrate
- microstrip antenna
- low section
- polarization microstrip
- section broadband
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Abstract
The utility model discloses a two circular polarization microstrip antenna of miniaturized low section broadband, the antenna comprises first medium base plate, metal -support frame, second medium base plate and third medium base plate. All there is parasitic metal paster on the surface about the first medium base plate, and upper surface paster dimensionaal ratio lower surface paster size is big and both are through 4 metallized through -hole connections, second medium base plate upper surface has the feed paster, third medium base plate includes 4 ribbon lines, 90 electric bridges, 2 feed probes and 2 radio frequency coaxial connector. The utility model discloses a 90 electric bridge and the two circular polarization of double -fed point technology are synthesized and are adopted laminated structure and through the wide microstrip antenna bandwidth of two parasitic patch structures exhibition that metallized through -hole links to each other, make the antenna bandwidth reach 19.4%, and frequency band within range circular polarization axial ratio is less than 1.3dB, have miniaturized low section characteristic, the volume is 0.45 lambda, 0 0.45 lambda, 0 0.075 lambda 0.
Description
Technical field
This utility model relates to the antenna technology of communication and navigation field, is specially a kind of miniaturization
Low section broadband double-circle polarization microstrip antenna.This utility model is suitable as phased array antenna
Array element, therefore to bandwidth and entelechy be applicable to the low section satellite mobile communication such as vehicle-mounted, airborne
Change the occasion that performance requirement is higher.
Background technology
Microstrip antenna has advantages such as low section, lightweight and low cost, but its intrinsic narrow frequency
Band characteristic (general relative bandwidth is less than 5%) limits its range of application.People have employed
A lot of technology carry out broadening microstrip antenna bandwidth, as used irregular metal patch, laminated construction etc.
Measure.But use irregular metal patch to be difficult to design, and often affect the pole of antenna
Change performance；Use laminated construction design simple, be easily guaranteed that antenna polarization performance, but the most not
Good control.It addition, in order to realize circular polarisation, single feed point can be used to add perturbation paster structure, this
Plant mode Circular polarization ratio narrower bandwidth；Multiple feeds technology also can be used to realize circular polarisation, pass through
Appropriate design feeding network is capable of wider Circular polarization ratio bandwidth.
Through patent retrieval, relevant patent closely-related with this utility model is specific as follows: patent
Number: CN200810114878.2, circular polarized wide-band capacitor compensating probe power feed stacked micro-strip sky
Linear array, achieves the standing wave band more than 20% by laminated construction and capacitor compensating probe technology
Width, but only achieve single circular polarisation；The patent No.: CN201010521963.8, a kind of single feedback width
Band circular polarisation stacked microstrip antenna and feeder equipment thereof, achieve 15.6% by laminated construction
3dB axial ratio bandwidth, and antenna height > 0.14 λ0；The patent No.: CN201310444387.5,
Uhf band double frequency round polarized low section air microstrip aerial, it is possible to realize dual band operation,
Do not possesses broadband character；The patent No.: CN201420045812.3, high wideband dual polarized micro-strip
Antenna, antenna operating band is 5150～5850MHz, less than 13%, and is linear polarization；Specially
Profit number: CN201420167391.1, a kind of broadband double-circle polarization microstrip antenna, it is possible to realize double
Circular polarisation works, and standing wave bandwidth reaches 56.5% but in frequency band, Circular polarization ratio has reached 6dB；
The patent No.: CN201420206459.2, the double-circle polarization microstrip antenna of wideband wide scan, its
Three dB bandwidth is more than 40%, and in frequency band, axle ratio is less than 3dB, but antenna height has reached
0.42λ0, the requirement of low section can not be met far away.
In sum, use the bandwidth of operation of some technical measures broadening microstrip antennas in engineering
It is easily to realize, but often brings the circular polarization characteristics of antenna to be deteriorated, antenna height increasing
The problem such as add.
Utility model content
The purpose of this utility model is to avoid the weak point in above-mentioned background technology, it is provided that one
Planting miniaturization low section broadband double-circle polarization microstrip antenna, this utility model achieves broadband
With good double-circle polarization characteristic, and have miniaturization, the feature of low section, have the highest
Future in engineering applications.
This utility model technical solution is: a kind of miniaturization low section broadband double-circle polarization
Microstrip antenna, supports including the first medium substrate 3 being fixedly connected sequentially from top to bottom, metal
Framework 7, second medium substrate 8 and the 3rd medium substrate 10；The upper table of first medium substrate 3
Face corrosion is formed with the upper parasitic metal paster 4 that center is porose, and the corrosion of its lower surface is formed down
Parasitic metal paster 5, the size of upper parasitic metal paster 4 is more than lower parasitic metal paster 5
Size and being connected by 4 plated-through holes 6；4 plated-through holes 6 are about first medium
The centrosymmetry of substrate 3；The upper surface corrosion of second medium substrate 8 is formed with fed patch 9；
It is provided with 12,2,11,90 ° of electric bridges of 4 strip line feed on 3rd medium substrate 10 to visit
Pin 13 and the input of 2,90 ° of electric bridges 12 of 2 radio frequency (RF) coaxial connectors and isolation end are respectively
Being connected with 2 radio frequency (RF) coaxial connector 2 one_to_one corresponding by 2 strip lines 11, it is straight
Go side and coupled end are respectively by 2 strip lines 11 and 2 feed probes 13 one_to_one corresponding phases
Connect；Fed patch 9 is by 2 plated-through holes and 2 feed probes 13 one_to_one corresponding
It is connected.
Wherein, described upper parasitic metal paster 4, lower parasitic metal paster 5 and fed patch
9 are circle or square.
Wherein, the center of the lower parasitic metal paster 5 of first medium substrate 3 has cross
Seam.
Wherein, described 90 ° of electric bridges 12 are 90 ° of electric bridge chips or 90 ° of electric bridge bandings
Gauze network.
Wherein, when 90 ° of electric bridges 12 are 90 ° of electric bridge chips, the center of second medium substrate 8
Position perforate, this hole is for accommodating 90 ° of electric bridge chips；The surrounding of 90 ° of electric bridge chips offers
There is multiple plated-through hole.
Wherein, multiple metal is all offered around described feed probes and radio frequency (RF) coaxial connector
Change through hole.
Wherein, the volume of described miniaturization low section broadband double-circle polarization microstrip antenna is
0.45λ0×0.45λ0×0.075λ0, wherein, λ0Centered by frequency electromagnetic free space pass
The wavelength broadcast.
Wherein, the dielectric constant of described second medium substrate 8 is than Jie of first medium substrate 3
Electric constant is big.
Wherein, the center of two described feed probes 13 and fed patch 9 center
Line is at an angle of 90.
This utility model compared with prior art has the advantage that
1, this utility model uses fed patch and double-deck parasitic patch, produces multiple resonance
Frequency, through size and the spacing of appropriate design each laminating sheet, makes multiple resonance band be linked as one
Body, the working band of broadening microstrip antenna.
2, double-deck parasitic patch of the present utility model is connected by four plated-through holes, on
Laminating sheet is more bigger than lower floor paster, empirical tests, compares separate two-layer parasitic patch structure,
This structure can greatly broadening working band.
3, the dielectric constant of first medium substrate of the present utility model and second medium substrate is relatively
Low, recycling metal frame construction air dielectric, reduce further whole micro-strip between the two
The effective dielectric constant of antenna, thus reduce quality factor, help the working band of broadening antenna.
4, this utility model comprehensively use laminated construction and by plated-through hole connect double
Parasitic patch structure so that this utility model has broadband character, ActiveVSWR≤2
Relative bandwidth reach 19.4%.
5, this utility model uses 90 ° of electric bridge chips and the double-fed point feed skill of function admirable
Art so that at two feed probes of inner antenna, signal keeps orthogonal in broad frequency range, wide
Frequency band range inner circle polarization performance is good, and axle ratio is less than 1.3dB.
6, two medium substrates of this utility model appropriate design and the thickness of intermediate air layer,
Making this utility model have the feature of the low section of miniaturization, volume is only 0.45 λ0×0.45λ0
×0.075λ0, it is particularly suitable as the array element of phased array antenna, is applied to mobile communication and navigation
Deng in field.
Accompanying drawing explanation
Fig. 1 is tomograph above side of the present utility model.
Fig. 2 is hierarchical diagram of the present utility model.
Fig. 3 is the side top view of first medium substrate of the present utility model.
Fig. 4 is the side-lower view of first medium substrate of the present utility model.
Fig. 5 is the 3-D view of the 3rd medium substrate of the present utility model.
Fig. 6 is active standing-wave ratio bandwidth figure of the present utility model.
Fig. 7 is axle ratio figure in frequency band of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna, as it is shown in figure 1, be one
Plant layered structure.Miniaturization low section broadband double-circle polarization microstrip antenna 1 is the most successively
It is provided with first medium substrate 3, metal support frame 7, second medium substrate 8 and the 3rd
Medium substrate 10, as shown in Figure 2；First medium substrate 3 is by upper copper-clad, intermediate medium
Form with lower copper-clad；Second medium substrate 8 is made up of upper surface copper-clad and dielectric-slab；The
Three medium substrates 10 are made up of upper copper-clad, middle strip line, lower copper-clad and two layer medium,
It is provided with medium between upper copper-clad and middle strip line, lower copper-clad and middle strip line.
As shown in Figure 3, Figure 4, two surfaces up and down of first medium substrate 3 are respectively arranged with
Parasitic metal paster 4 and lower parasitic metal paster 5, all use circular configuration, upper parasitic metal
Under being slightly larger in dimension than of paster 4 parasitic metal paster 5 size and by four plated-through holes
6 connect, and 4 plated-through holes 6 are about the centrosymmetry of first medium substrate 3；Upper parasitism
Metal patch 4 center drilling, lower parasitic metal paster 5 center opens cross crotch, the size in hole with
The size of cross crotch is suitable.In this example, the dielectric constant of first medium substrate is 2.2, thick
Degree is 1.5mm, and upper parasitic metal paster 4 radius is 26.5mm, lower parasitic metal paster 5
Radius is 25.5mm.
Second medium substrate 8 upper surface is provided with circular fed patch 9, second medium substrate 8
Hole with the center of circular fed patch 9 has formed objects, is used for putting into 90 ° of electric bridge cores
Sheet 12.The dielectric constant of second medium substrate 8 is bigger than the dielectric constant of first medium substrate 3,
In this example, second medium substrate dielectric constant is 3.5, and thickness is 2.5mm, circular feed
The radius of paster 9 is 20.5mm.
3rd medium substrate 10 for realize at two feed probes 13 signal ± 90 ° of phases
Potential difference, then formed through fed patch 9, upper parasitic metal paster 4 and lower parasitic metal paster 5
Circularly polarized signal, and circularly polarized signal is radiate.As it is shown in figure 5, the 3rd medium substrate
4 strip line, 12,2 feed probes 13 and 2 of 11,90 ° of electric bridge chips it are provided with on 10
(this utility model uses SMP joint, and a SMP interface to individual radio frequency (RF) coaxial connector 2
For left-hand circular polarization mouth, another is right-handed circular polarization mouth).2 feed probes 13 and 90 °
Two strip line shapes between electric bridge chip 12 are identical, 2 radio frequency (RF) coaxial connectors 2 with
Strip line length between 90 ° of electric bridge chips 12 can be different.90 ° of electric bridge chips 12, penetrate
Frequently the surrounding of coaxial connector 2, strip line 11 and feed probes 13 is all equipped with multiple metallization
Through hole 6, makes upper and lower two metal surface current potentials equal, is substantially improved the standing wave performance of microstrip antenna.
90 ° of electric bridge chips 12 put into the centre bore of second medium substrate 8,90 ° of electric bridge cores
The input of sheet 12 and isolation end are connected with 2 radio-frequency (RF) coaxial by 2 strip lines 11 respectively
Device 2 is connected, and its straight-through end and coupled end are respectively by 2 strip lines 11 and 2 feeds
Probe 13 is connected.In this example, the thickness of the 3rd medium substrate 10 is 1.0mm.
7 four jiaos of metal support frame is equipped with through hole, is positioned at first medium substrate 3 and second medium
Between substrate 8, as both connection and support member, this laminated construction can reduce micro-strip
The effective dielectric constant of antenna, thus the broadening beamwidth of antenna.Metal support frame 7 thickness is
5.5mm。
First medium substrate 3, metal support frame 7, second medium substrate 8 and the 3rd medium
Substrate 10 4 part is connected by four screws.
Lead to it addition, Dense metalization is all beaten on first medium substrate 3 and second medium substrate 8 four limit
Hole 6, when this utility model is as phased array antenna array element, this measure can array element it
Between play buffer action, thus reduce array element mutual coupling.
As shown in Figure 6, Figure 7, active standing-wave ratio (Active VSWR) bandwidth of this example
Scope is 1.948GHz～2.365GHz, and relative bandwidth is 19.4%, axle ratio in bandwidth
<1.3dB.This example antenna volume is 0.45 λ0×0.45λ0×0.075λ0, λ0Centered by frequency
Electromagnetic wave is at the wavelength of free-space propagation.
Operation principle of the present utility model is:
When receiving signal: circularly polarized signal receives through double-deck parasitic metal paster and fed patch
After, signal is input to 90 ° of electric bridge chips by two feed probes, then through 90 ° of electric bridge cores
Sheet synthesizes 1 road signal and exports rear end from 1 radio frequency (RF) coaxial connector that microstrip antenna is corresponding and believe
Number processing equipment；
When launching signal: by radio frequency (RF) coaxial connector to microstrip antenna input signal, signal warp
Cross 90 ° of electric bridge chips and be divided into that two-way amplitude is equal, the signal of quadrature in phase, respectively through two
Feed probes is to fed patch constrained feed, to two-layer parasitic metal paster couple feed, thus
Form circularly polarized signal to launch from antenna surface.
Claims (9)
1. a miniaturization low section broadband double-circle polarization microstrip antenna, it is characterised in that: include first medium substrate (3), metal support frame (7), second medium substrate (8) and the 3rd medium substrate (10) being fixedly connected sequentially from top to bottom；The upper surface corrosion of first medium substrate (3) is formed with the upper parasitic metal paster (4) that center is porose, the corrosion of its lower surface is formed with lower parasitic metal paster (5), and the size of upper parasitic metal paster (4) more than the size of lower parasitic metal paster (5) and is connected by 4 plated-through holes (6)；4 plated-through holes (6) are about the centrosymmetry of first medium substrate (3)；The upper surface corrosion of second medium substrate (8) is formed with fed patch (9)；4 strip lines (11), 90 ° of electric bridges (12), 2 feed probes (13) and 2 radio frequency (RF) coaxial connectors (2) it are provided with on 3rd medium substrate (10), the input of 90 ° of electric bridges (12) is connected with 2 radio frequency (RF) coaxial connector (2) one_to_one corresponding by 2 strip lines (11) respectively with isolation end, and its straight-through end is connected with 2 feed probes (13) one_to_one corresponding by 2 strip lines (11) respectively with coupled end；Fed patch (9) is connected by 2 plated-through holes and 2 feed probes (13) one_to_one corresponding.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 1, it is characterised in that: described upper parasitic metal paster (4), lower parasitic metal paster (5) and fed patch (9) are circle or square.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 1 and 2, it is characterised in that: the center of the lower parasitic metal paster (5) of first medium substrate (3) has cross crotch.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 1, it is characterised in that: 90 ° of described electric bridges (12) are 90 ° of electric bridge chips or 90 ° of electric bridge strip line networks.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 4, it is characterized in that: when 90 ° of electric bridges (12) are 90 ° of electric bridge chips, the center perforate of second medium substrate (8), this hole is for accommodating 90 ° of electric bridge chips；The surrounding of 90 ° of electric bridge chips offers multiple plated-through hole.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 1, it is characterised in that: all offer multiple plated-through hole around described feed probes and radio frequency (RF) coaxial connector.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 1, it is characterised in that: the volume of described miniaturization low section broadband double-circle polarization microstrip antenna is 0.45 λ0×0.45λ0×0.075λ0, wherein, λ0Centered by frequency electromagnetic at the wavelength of free-space propagation.
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 1, it is characterised in that: the dielectric constant of described second medium substrate (8) is bigger than the dielectric constant of first medium substrate (3).
A kind of miniaturization low section broadband double-circle polarization microstrip antenna the most according to claim 1, it is characterised in that: the center of two described feed probes (13) is with the line at fed patch (9) center at an angle of 90.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477655.2U CN205621858U (en) | 2016-05-23 | 2016-05-23 | Two circular polarization microstrip antenna of miniaturized low section broadband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477655.2U CN205621858U (en) | 2016-05-23 | 2016-05-23 | Two circular polarization microstrip antenna of miniaturized low section broadband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205621858U true CN205621858U (en) | 2016-10-05 |
Family
ID=57023884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620477655.2U Withdrawn - After Issue CN205621858U (en) | 2016-05-23 | 2016-05-23 | Two circular polarization microstrip antenna of miniaturized low section broadband |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205621858U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811102A (en) * | 2016-05-23 | 2016-07-27 | 中国电子科技集团公司第五十四研究所 | Miniature low-profile broadband dual-circular-polarization microstrip antenna |
| CN109565112A (en) * | 2016-11-14 | 2019-04-02 | 株式会社日立产机系统 | Antenna assembly |
| CN110911834A (en) * | 2019-12-02 | 2020-03-24 | 成都瑞迪威科技有限公司 | Phased array antenna capable of realizing left-right rotation circular polarization switching |
| WO2020107259A1 (en) * | 2018-11-28 | 2020-06-04 | 华为技术有限公司 | Dual-polarized micro-strip patch antenna, package antenna, and terminal device |
| CN112701497A (en) * | 2020-12-23 | 2021-04-23 | 北京邮电大学 | Low-profile shared-aperture dual-circular-polarization orbital angular momentum state multiplexing antenna |
-
2016
- 2016-05-23 CN CN201620477655.2U patent/CN205621858U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811102A (en) * | 2016-05-23 | 2016-07-27 | 中国电子科技集团公司第五十四研究所 | Miniature low-profile broadband dual-circular-polarization microstrip antenna |
| CN105811102B (en) * | 2016-05-23 | 2018-06-12 | 中国电子科技集团公司第五十四研究所 | A kind of miniaturization low section broadband double-circle polarization microstrip antenna |
| CN109565112A (en) * | 2016-11-14 | 2019-04-02 | 株式会社日立产机系统 | Antenna assembly |
| WO2020107259A1 (en) * | 2018-11-28 | 2020-06-04 | 华为技术有限公司 | Dual-polarized micro-strip patch antenna, package antenna, and terminal device |
| CN110911834A (en) * | 2019-12-02 | 2020-03-24 | 成都瑞迪威科技有限公司 | Phased array antenna capable of realizing left-right rotation circular polarization switching |
| CN112701497A (en) * | 2020-12-23 | 2021-04-23 | 北京邮电大学 | Low-profile shared-aperture dual-circular-polarization orbital angular momentum state multiplexing antenna |
| CN112701497B (en) * | 2020-12-23 | 2021-09-17 | 北京邮电大学 | Low-profile shared-aperture dual-circular-polarization orbital angular momentum state multiplexing antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161005 Effective date of abandoning: 20180612 |