CN206250390U - A kind of suspended stripline fed planar array antenna - Google Patents
A kind of suspended stripline fed planar array antenna Download PDFInfo
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- CN206250390U CN206250390U CN201621321748.2U CN201621321748U CN206250390U CN 206250390 U CN206250390 U CN 206250390U CN 201621321748 U CN201621321748 U CN 201621321748U CN 206250390 U CN206250390 U CN 206250390U
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- array antenna
- drive probe
- power division
- vertical polarization
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Abstract
The utility model discloses a kind of suspended stripline fed planar array antenna, the array antenna includes a waveguide mouthful radiating element, and the waveguide mouthful radiating element includes a radiation port；One is arranged on the horizontal drive probe below radiation port；One sets the vertical drive probe below horizontal drive probe；One is arranged on the horizontal vertical POLARIZATION CHANNEL between horizontal drive probe and vertical drive probe, and the horizontal vertical POLARIZATION CHANNEL is provided with waveguide channels, frequency modulation medium block is provided with the waveguide channels；One is arranged on the bottom short circuit chamber below vertical drive probe.The utility model is using the very small strip line feed of loss；Compact conformation, electrical property reliability, group battle array are convenient, are highly suitable for the modern satellite communications system occasion high to the requirement of antenna for satellite communication in motion size and use.
Description
Technical field
The utility model is related to communication technical field, and more particularly to mobile satellite communication earth station is for example vehicle-mounted, onboard satellite
A kind of suspended stripline feed of the communication station as high efficiency, lightweight, miniaturization, the satellite communication antenna for satellite communication in motion of low section is flat
Plate array antenna.
Background technology
Satellite communication antenna for satellite communication in motion system is a kind of specific type of satellite communication, there is wide in Modern Communication System
General application prospect, satellite communication has long transmission distance, as long as can all carry out voice, data in satellite beams coverage
And Image Communication, and good communication quality, channel are stable, the bit error rate is low, networking mode is flexible；Thus satellite communication turns into wireless
The Main Means of communication, more and more important effect is played in present information transmission；And satellite communication antenna for satellite communication in motion is this
A most important part in system.
With the development of various countries' satellite mobile communication, the developing direction of the communication technology is, weight and body stronger to mobility
Product is smaller, and disguised more preferably communication bandwidth is wider, and transmission link is more stablized, the direction such as anti-interference and anti-lethality is stronger
Development.
Mobile satellite communication will effectively for mobile platform provides communication support, and this requires that communication antenna must be small-sized
Change, low profile, lightweight equipment, can flexibly be arranged on all kinds of mobile platforms, especially meet volume, space and load-bearing
Limited airborne platform is used.
Common antenna form mainly has reflector antenna, the flat plate array of micro-strip form feed in the existing communications field
The flat plate array antenna of antenna, waveguide form feed.But all there are some shortcomings：
1) stable performance of reflector antenna, but meet antenna electric performance index request it is higher in the case of, antenna
Size is difficult to do low, it is impossible to meet the demand of antenna system low profile.
2) flat plate array of micro-strip form is although relatively common, is easily worked, but feeder loss is big and polarization isolation
Poor, overall efficiency is very low.
3) flat plate array of waveguide feed form is also relatively common, is also widely used in some communication in moving systems；
Although feeder loss is small much compared to microstrip line, because waveguide network volume is larger, reality processing antenna out is whole
Body size is thicker, and weight is also heavier.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of with high efficiency, low sidelobe, preferable polarization tracking
It is low with isolation performance and section, lightweight, be easy to a group battle array, the suspended stripline feed for being very suitable for mobile satellite communication field is flat
Plate array antenna.
To reach above-mentioned purpose, the technical solution of the utility model is as follows：
A kind of suspended stripline fed planar array antenna, the array antenna includes a waveguide mouthful radiating element, the ripple
Leading a mouthful radiating element includes：
One radiation port；
One is arranged on the horizontal drive probe below radiation port；
One sets the vertical drive probe below horizontal drive probe；
One is arranged on the horizontal vertical POLARIZATION CHANNEL between horizontal drive probe and vertical drive probe, the horizontal vertical
POLARIZATION CHANNEL is provided with waveguide channels, and frequency modulation medium block is provided with the waveguide channels；
One is arranged on the bottom short circuit chamber below vertical drive probe.
In one embodiment of the present utility model, the length of side of the radiation port is 0.6-0.95 λ0, λ0Centered on wavelength.
In one embodiment of the present utility model, the array antenna multiplies 8 array antennas for 8, and it multiplies 8 feeds by 8
Waveguide mouthful radiating element is uniformly constituted；Described 8 multiply 8 array antennas includes：
One radiating guide mouthful array, the radiating guide mouthful array multiplies 8 radiation port equidistantly distributeds and constitutes by 8；
One is arranged on the horizontal polarization layer feed power division network below radiating guide mouthful array, the horizontal polarization layer feed
Power division network multiplies 8 horizontal drive probe equidistantly distributeds and constitutes by 8；
One is arranged on the vertical polarization layer feed power division network below horizontal polarization layer feed power division network, the vertical pole
Change layer feed power division network multiplies 8 vertical drive probe equidistantly distributeds and constitutes by 8；
One is arranged on the horizontal vertical between horizontal polarization layer feed power division network and vertical polarization layer feed power division network
POLARIZATION CHANNEL group, the horizontal vertical POLARIZATION CHANNEL group multiplies 8 horizontal vertical POLARIZATION CHANNEL equidistantly distributeds and constitutes by 8, described
Frequency modulation medium block is equipped with the waveguide channels of each horizontal vertical POLARIZATION CHANNEL；
One is arranged on the bottom short circuit chamber group below vertical polarization layer feed power division network, and the bottom short circuit chamber group is by 8
Multiply 8 bottoms short circuit chamber equidistantly distributed composition.
In one embodiment of the present utility model, the horizontal polarization layer feed power division network and vertical polarization layer feed
Power division network is used goes here and there and presents form network topology.
In one embodiment of the present utility model, the horizontal polarization layer feed power division network and vertical polarization layer feed
The decile or not decile power splitter of several strip line forms are equipped with power division network.
In one embodiment of the present utility model, described 8 multiply 8 array antenna size length respectively 130mm,
130mm、15.6mm。
In one embodiment of the present utility model, the distance between described every two neighboring radiation port is 0.9 λ0, λ0For
Centre wavelength.
In one embodiment of the present utility model, the power splitter of the strip line form includes the wire chamber of inner hollow
Body, the center conductor being arranged on inside metallic cavity and the dielectric layer being suspended in metallic cavity.
In one embodiment of the present utility model, the dielectric layer selects Rogers4530 dielectric materials.
By above-mentioned technical proposal, the beneficial effects of the utility model are：
The utility model suspended stripline fed planar array antenna uses the waveguide mouthful radiating element of transmit-receive sharing, waveguide mouthful
Radiating element is using the very small strip line feed of loss；Compact conformation, electrical property reliability, group battle array are convenient, are highly suitable for existing
Used for the satellite communication system occasion high to the requirement of antenna for satellite communication in motion size.
The utility model for the transmission performance and polarization performance that are obtained in two POLARIZATION CHANNELs, in two-layer transmission network
Orthogonal waveguide channels are added between network, and in order to reduce cut-off frequency, while being put into frequency modulation medium in the waveguide channels
Block, it is ensured that only main mould can be relayed；For the polarization isolation for obtaining, between being provided between two-layer feeding network necessarily
Gap；Because the horizontal polarization main mould on upper strata can not be by waveguide channels orthogonal under it, so in debugging horizontal polarization matching
When do not influenceed by the vertical polarization passage of lower floor；I.e. two impedance matchings of POLARIZATION CHANNEL can be separated debugs, and is independent of each other.
For the rational arrangement feeding network in limited space, use here and go here and there and present form network topology, each
Multiple deciles or not decile power splitter are included in the network of polarization layer, control antenna radiation pattern is reached by controlling work(component
The purpose of sidelobe level；The reflection coefficient of port loss≤- 20dB of each polarization layer, the width of input radiation Wave guide unit in whole frequency band
Degree fluctuation≤0.3dB.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model radiative unit structure schematic diagram；
Fig. 2 multiplies 8 array antenna structure schematic diagrames for the utility model 8；
Fig. 3 is the utility model power splitter schematic diagram；
Numeral and the corresponding component title represented by letter in figure：
10th, waveguide mouthful radiating element 11, radiation port 12, horizontal drive probe 13, vertical drive probe 14, level hang down
Straight POLARIZATION CHANNEL 14a, waveguide channels 14b, frequency modulation medium block 15, bottom short circuit chamber 20, radiating guide mouthful array 30, water
Flat polarization layer feed power division network 40, vertical polarization layer feed power division network 50, horizontal vertical POLARIZATION CHANNEL group 60, bottom
Short-circuit chamber group 70, power splitter 71, metallic cavity 72, center conductor 73, dielectric layer.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to shown in Fig. 1 to Fig. 3, the utility model discloses a kind of suspended stripline fed planar array antenna, array day
Line includes a waveguide mouthful radiating element 10, and waveguide mouthful radiating element 10 includes radiation port 11, is arranged on the level below radiation port
Excitation probe 12, sets the vertical drive probe 13 below horizontal drive probe, is arranged on horizontal drive probe and vertical drive
Horizontal vertical POLARIZATION CHANNEL 14 between probe, horizontal vertical POLARIZATION CHANNEL is provided with waveguide channels 14a, is provided with waveguide channels
Frequency modulation medium block 14b, is arranged on the bottom short circuit chamber 15 below vertical drive probe；The size of the utility model radiation port bore
Selection should consider that waveguide mouthful radiating element is operated in single mode area in itself, have module gain higher again, while fully to examine
The appearance and size for considering array antenna will not have sufficient space beyond the size of general requirement and feeding network layout；General feelings
Under condition, the length of side can be in 0.6-0.95 λ0(λ0Centered on wavelength) between choose, corresponding module gain is 6dB-9.5dB, between unit
Away from taking 0.9 λ 0 or so.
Multiply 8 array antennas according to the utility model array antenna technique design 8, antenna size length is respectively
130mm, 130mm, 15.6mm, it multiplies 8 feed waveguides mouthful radiating element and uniformly constitutes by 8；8 multiply 8 array antennas includes radiation
Waveguide mouthful array 20, the horizontal polarization layer being arranged on below radiating guide mouthful array feed power division network 30, are arranged on level pole
Change layer feed power division network below vertical polarization layer feed power division network 40, be arranged on horizontal polarization layer feed power division network and
Vertical polarization layer feeds the horizontal vertical POLARIZATION CHANNEL group 50 between power division network and is arranged on vertical polarization layer feed work(point
Bottom short circuit chamber group 60 below network；Radiating guide mouthful array multiplies 8 radiation port equidistantly distributeds and constitutes by 8, per adjacent two
The distance between individual radiation port is 0.9 λ0, λ0Centered on wavelength；Horizontal polarization layer feed power division network multiplies 8 horizontal drives by 8
Probe equidistantly distributed is constituted；Vertical polarization layer feed power division network multiplies 8 vertical drive probe equidistantly distributeds and constitutes by 8；
Horizontal vertical POLARIZATION CHANNEL group multiplies 8 horizontal vertical POLARIZATION CHANNEL equidistantly distributeds and constitutes by 8, each horizontal vertical polarization
Frequency modulation medium block 14b is equipped with the waveguide channels 14a of passage；Bottom short circuit chamber group multiplies 8 bottoms short circuit chamber and equidistantly divides by 8
Cloth is constituted.
Horizontal polarization layer feed power division network is with vertical polarization layer feed power division network by printed circuit board technology come real
Now, horizontal polarization layer feed power division network and vertical polarization layer feed power division network are used and go here and there and present form network topology, level
Polarization layer feeds the decile work(point that several strip line forms are equipped with power division network and vertical polarization layer feed power division network
Device 70；Metallic cavity 71 of the power splitter comprising inner hollow, the center conductor 72 that is arranged on inside metallic cavity and it is suspended at
Dielectric layer 73 in metallic cavity；The feeder network that power splitter is related to uses suspended transmission line, and suspended transmission line is a kind of TEM moulds
Coaxial transmission line, the width of center conductor determines the characteristic impedance and loss of transmission line；Dielectric layer is situated between from Rogers4530
Material, suspended stripline characteristic impedance design load is 50 Ω, is easy to obtain by adjusting quarter-wave center conductor width
Obtain decile or not decile power splitter；In design of Simulation, single power splitter is separately designed first, it is ensured that the width of each power splitter
Degree and phase reach expectation index value；Then the power splitter that will be designed cascades up overall debugging, is finally reached design objective
It is required that；Be grouped together Holistic modeling for feeding network and radiating curtain unit in integral layout by antenna, is counted by emulating
Calculation, Optimal Parameters, are finally completed the design of array antenna.
The utility model radiating guide mouthful array, horizontal polarization layer feed power division network, vertical polarization layer feed work(subnetting
Network and array block mold have carried out modeling optimization in CST three-D high frequency electromagnetic simulation softwares；Simulation result shows in Ku
Frequency range, the horizontal polarization in the range of return loss≤- 10dB and vertical polarization relative bandwidth of the array antenna can reach
18% or so；Two cross polarization level nearly 30dB of polarization；The aperture radiation efficiency of antenna can reach more than 70%；Side
Symmetry to figure is also very good.Demand of the in the market Ku transmitting-receiving frequency ranges to bandwidth can be met completely.
The utility model has the following advantages that compared with background technology：
1st, because dieelctric sheet is relatively thin, so feeder loss is smaller；
2nd, the transmission of TEM moulds is supported in frequency band wider；
3rd, suspended stripline comparison with standard waveguide dimensions are smaller, can meet cramped construction design requirement；
4th, the coupling between adjacent transmission lines does not almost have；
5th, different from microstrip transmission line, not from the radiation loss on feeder network；
6th, between because medium is suspended at cavity, effective dielectric constant dielectric constant closely in free space, so
Surface wave loss is very small.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (9)
1. a kind of suspended stripline fed planar array antenna, it is characterised in that the array antenna includes that a waveguide mouthful radiation is single
Unit, the waveguide mouthful radiating element includes：
One radiation port；
One is arranged on the horizontal drive probe below radiation port；
One sets the vertical drive probe below horizontal drive probe；
One is arranged on the horizontal vertical POLARIZATION CHANNEL between horizontal drive probe and vertical drive probe, the horizontal vertical polarization
Passage is provided with waveguide channels, and frequency modulation medium block is provided with the waveguide channels；
One is arranged on the bottom short circuit chamber below vertical drive probe.
2. a kind of suspended stripline fed planar array antenna according to claim 1, it is characterised in that the radiation port
The length of side is 0.6-0.95 λ0, λ0Centered on wavelength.
3. a kind of suspended stripline fed planar array antenna according to claim 1, it is characterised in that the array antenna
For 8 multiply 8 array antennas, it multiplies 8 feed waveguides mouthful radiating element and uniformly constitutes by 8；Described 8 multiply 8 array antennas includes：
One radiating guide mouthful array, the radiating guide mouthful array multiplies 8 radiation port equidistantly distributeds and constitutes by 8；
One is arranged on the horizontal polarization layer feed power division network below radiating guide mouthful array, the horizontal polarization layer feed work(point
Network multiplies 8 horizontal drive probe equidistantly distributeds and constitutes by 8；
One is arranged on the vertical polarization layer feed power division network below horizontal polarization layer feed power division network, the vertical polarization layer
Feed power division network multiplies 8 vertical drive probe equidistantly distributeds and constitutes by 8；
One is arranged on the horizontal vertical polarization between horizontal polarization layer feed power division network and vertical polarization layer feed power division network
Passage group, the horizontal vertical POLARIZATION CHANNEL group multiplies 8 horizontal vertical POLARIZATION CHANNEL equidistantly distributeds and constitutes by 8, it is described each
Frequency modulation medium block is equipped with the waveguide channels of horizontal vertical POLARIZATION CHANNEL；
One is arranged on the bottom short circuit chamber group below vertical polarization layer feed power division network, and the bottom short circuit chamber group multiplies 8 by 8
Bottom short circuit chamber equidistantly distributed composition.
4. a kind of suspended stripline fed planar array antenna according to claim 3, it is characterised in that the horizontal polarization
Layer feed power division network and vertical polarization layer feed power division network are used and go here and there and present form network topology.
5. a kind of suspended stripline fed planar array antenna according to claim 3, it is characterised in that the horizontal polarization
The decile or not decile of several strip line forms are equipped with layer feed power division network and vertical polarization layer feed power division network
Power splitter.
6. a kind of suspended stripline fed planar array antenna according to claim 3, it is characterised in that described 8 multiply 8 arrays
Antenna size length is respectively 130mm, 130mm, 15.6mm.
7. a kind of suspended stripline fed planar array antenna according to claim 3, it is characterised in that described per adjacent two
The distance between individual radiation port is 0.9 λ0, λ0Centered on wavelength.
8. a kind of suspended stripline fed planar array antenna according to claim 5, it is characterised in that the banding is linear
The metallic cavity of the power splitter of formula including inner hollow, the center conductor being arranged on inside metallic cavity and it is suspended at wire chamber
Dielectric layer in body.
9. a kind of suspended stripline fed planar array antenna according to claim 8, it is characterised in that the medium layer choosing
Use Rogers4530 dielectric materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321748.2U CN206250390U (en) | 2016-12-05 | 2016-12-05 | A kind of suspended stripline fed planar array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321748.2U CN206250390U (en) | 2016-12-05 | 2016-12-05 | A kind of suspended stripline fed planar array antenna |
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| CN206250390U true CN206250390U (en) | 2017-06-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359405A (en) * | 2017-07-27 | 2017-11-17 | 中国电子科技集团公司第五十四研究所 | A kind of two-terminal feeding formula array antenna |
| CN110994165A (en) * | 2019-11-21 | 2020-04-10 | 东南大学 | High-isolation suspended microstrip line balanced feed dual-polarized broadband antenna array |
| CN112201936A (en) * | 2020-09-30 | 2021-01-08 | 东南大学 | Dual-band triple-polarized antenna based on closed mushroom-shaped unit structure |
| CN113206379A (en) * | 2021-04-06 | 2021-08-03 | 浙江大学 | Multilayer suspension strip line antenna feed structure |
| CN113517564A (en) * | 2021-04-06 | 2021-10-19 | 浙江大学 | CTS beam scanning antenna based on multilayer suspension strip line structure |
-
2016
- 2016-12-05 CN CN201621321748.2U patent/CN206250390U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359405A (en) * | 2017-07-27 | 2017-11-17 | 中国电子科技集团公司第五十四研究所 | A kind of two-terminal feeding formula array antenna |
| CN107359405B (en) * | 2017-07-27 | 2023-04-07 | 中国电子科技集团公司第五十四研究所 | Dual-port feed type array antenna |
| CN110994165A (en) * | 2019-11-21 | 2020-04-10 | 东南大学 | High-isolation suspended microstrip line balanced feed dual-polarized broadband antenna array |
| CN110994165B (en) * | 2019-11-21 | 2022-04-12 | 东南大学 | High-isolation suspended microstrip line balanced feed dual-polarized broadband antenna array |
| CN112201936A (en) * | 2020-09-30 | 2021-01-08 | 东南大学 | Dual-band triple-polarized antenna based on closed mushroom-shaped unit structure |
| CN113206379A (en) * | 2021-04-06 | 2021-08-03 | 浙江大学 | Multilayer suspension strip line antenna feed structure |
| CN113517564A (en) * | 2021-04-06 | 2021-10-19 | 浙江大学 | CTS beam scanning antenna based on multilayer suspension strip line structure |
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