CN208478544U - Spherical surface digital array antenna based on S frequency range - Google Patents
Spherical surface digital array antenna based on S frequency range Download PDFInfo
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- CN208478544U CN208478544U CN201821031479.5U CN201821031479U CN208478544U CN 208478544 U CN208478544 U CN 208478544U CN 201821031479 U CN201821031479 U CN 201821031479U CN 208478544 U CN208478544 U CN 208478544U
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Abstract
It include spherical antenna the utility model discloses the spherical surface digital array antenna based on S frequency range, the surface of the spherical antenna is evenly distributed to be provided with 31 antenna elements；The antenna element feeds two feeding points for intersecting patch respectively by power division network and 90 ° of phase shift delays, is realized the circular polarization characteristics of broadband and wideangle using back chamber right-angled intersection micro-strip paster antenna；After antenna element receives signal, enter low noise and down conversion module by the straight-through end of coupler, the signal received is amplified, is filtered by low noise, generate 200MHz bandwidth intermediate-freuqncy signal, enter digital signal processor after A/D sampling, digital mixing, extraction to handle the signal received, finally exports required signal.Compared with phased array antenna, it due to the symmetry of spherical surface, may be implemented in covering airspace that directional diagram is almost the same, solve the disadvantage that antenna radiation pattern and axis decline more violent than performance when phased array antenna carries out wide-angle scanning.
Description
Technical field
The utility model relates to a kind of array antennas, and in particular to a kind of spherical surface digital array antenna based on S frequency range.
Background technique
The S frequency range spherical surface digital array antenna of this programme has wave beam agile compared with traditional mechanical scanning array
Advantage；And compared with phased array antenna, due to the symmetry of spherical surface, it is consistent to may be implemented directional diagram in covering airspace, solves
Phased array antenna carries out the shortcomings that antenna radiation pattern and axis more violent than performance decline when wide-angle scanning, therefore, to S frequency range spherical surface
The development of digital array antenna has a very important significance.
Utility model content
The technical problem to be solved by the utility model is to the symmetry of spherical surface, may be implemented directional diagram in covering airspace
Unanimously, antenna radiation pattern and axis decline more violent than performance when phased array antenna carries out wide-angle scanning are solved the disadvantage that；It realizes
The big airspace of telemetered signal, wide angle receive, and are capable of forming one or multiple wave beams, the utility model provide in solution simultaneously
State the spherical surface digital array antenna based on S frequency range of problem.
The utility model is achieved through the following technical solutions:
Spherical surface digital array antenna based on S frequency range, including spherical antenna, the surface of the spherical antenna is evenly distributed to be set
It is equipped with 31 antenna elements；The antenna element is moved using back chamber right-angled intersection micro-strip paster antenna by power division network and 90 °
Phase retardation feeds two feeding points for intersecting patch respectively, realizes the circular polarization characteristics of broadband and wideangle；The spherical shape day
Line is connect by support column with electrical box；Electrical box bottom is mounted in pedestal；It is low that the spherical antenna is internally provided with multichannel
It makes an uproar and puts and down conversion module；Inside the electrical box setting multichannel adc data convert with optical communications module, calibration network module,
And power feeding module；Wherein, antenna element is used for the reception of electromagnetic wave；Low noise and down conversion module for signal amplification,
Filtering and down coversion；Adc data conversion is used for signal sampling, Digital Down Convert, speed conversion, data high-speed with optical communications module
Transmission；The internal calibration of calibration network module realization antenna；In the course of work, after antenna element receives signal, pass through coupler
Straight-through end enter low noise and down conversion module, the signal received is amplified, is filtered by low noise, generate 200MHz band
Wide intermediate-freuqncy signal enters digital signal processor after A/D sampling, digital mixing, extraction and handles the signal received,
Finally export required signal.Through spherical surface digital array antenna compared with traditional mechanical scanning array, there is wave beam agile
Advantage；And compared with phased array antenna, due to the symmetry of spherical surface, it is almost the same to may be implemented directional diagram in covering airspace,
Solves the disadvantage that antenna radiation pattern and axis decline more violent than performance when phased array antenna carries out wide-angle scanning.
Further, the stage of pedestal is provided with right Hot-air fan and heat release hole, and base side is also equipped with heat release hole.It is logical
Base bottom heat release hole air inlet is crossed, outlet air help in side is radiated, and device the operation is stable is made.
Further, when calibration network module works, calibration signal is entered by calibration network power splitter input port, described
Calibration network power splitter is 1 point of 32 power splitter, enters coupler after information is divided into 32 road sign calibration signals, is coupled by coupler
To low noise and down conversion module, low noise, down coversion, AD conversion of the coupled signal by receiving channel, entering signal processing
Unit, the information such as antenna element magnitude-phase characteristics, calibration network magnitude-phase characteristics and each antenna element position obtained in conjunction with measurement are complete
It is handled at the calibration of amplitude and phase of receiving channel.
Further, 1 point of 32 power splitter includes 1 point of 4 power splitter and 41 point of 8 power splitters；The power feeding module
Use identical 1 point of 32 power splitter.It is connected by power splitter, realizes array signal branch, save design space, installation side
Just.
Further, further include cylindrical cover, be matched arc-shaped with spherical antenna at the top of the cover；Cover
Lower opening matches with the base edge.
Further, low noise is connect with down conversion module with antenna element by SMP connector.Pass through SMP connector
Connect more stable convenience.
The utility model has the following advantages and benefits:
1, the utility model has wave beam agile through spherical surface digital array antenna compared with traditional mechanical scanning array
Advantage；And compared with phased array antenna, due to the symmetry of spherical surface, it is almost the same to may be implemented directional diagram in covering airspace,
Solves the disadvantage that antenna radiation pattern and axis decline more violent than performance when phased array antenna carries out wide-angle scanning；
2, the utility model realizes array signal branch, saves design space, installation by power splitter series connection adduction connection
It is convenient；
3, the utility model connects more stable convenience by SMP connector.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the principles of the present invention structural block diagram.
Label and corresponding parts title in attached drawing:
1- spherical antenna, 2- antenna element, 3- support column, 4- corrective network power splitter, 5- feeding network power splitter, 6- electricity
Gas box, 7- mounting seat, 8- heat release hole.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1 and Figure 2, the spherical surface digital array antenna based on S frequency range, including spherical antenna 1, the spherical antenna 1
Surface evenly distributed be provided with 31 antenna elements 2；The antenna element 2 uses back chamber right-angled intersection micro-strip paster antenna,
Two feeding points for intersecting patch are fed respectively by power division network and 90 ° of phase shift delays, realize the circle of broadband and wideangle
Polarization characteristic；The spherical antenna 1 is connect by support column 3 with electrical box 6；6 bottom of electrical box is mounted in pedestal 7；It is described
Electrical appliance kit 6 be internally provided with low noise and down conversion module, adc data conversion and optical communications module, calibration network module and
Power feeding module；Wherein, antenna element 2 is used for the reception of electromagnetic wave；Amplification, the filtering of low noise and down conversion module for signal
And down coversion；Adc data conversion is passed with optical communications module for signal sampling, Digital Down Convert, speed conversion, data high-speed
It is defeated；The internal calibration of calibration network module realization antenna；In the course of work, after antenna element 2 receives signal, pass through coupler
Straight-through end enters low noise and down conversion module, and the signal received is amplified, filtered by low noise, generates 200MHz bandwidth
Intermediate-freuqncy signal enters digital signal processor after A/D sampling, digital mixing, extraction and handles the signal received, most
Required signal is exported afterwards；The stage of pedestal 7 is provided with right Hot-air fan and heat release hole, and 7 side of pedestal is also equipped with heat release hole
8；When calibration network module works, calibration signal is entered by 4 input port of calibration network power splitter, the calibration network power splitter
4 be 1 point of 32 power splitter, enters coupler after information is divided into 32 road sign calibration signals, is coupled to low noise under by coupler
Frequency-variable module, low noise, down coversion, AD conversion of the coupled signal by receiving channel, entering signal processing unit, in conjunction with measurement
The information such as antenna element magnitude-phase characteristics, calibration network magnitude-phase characteristics and each antenna element position of acquisition, complete receiving channel
Calibration of amplitude and phase processing；1 point of 32 power splitter includes 1 point of 4 power splitter and 41 point of 8 power splitters；The power feeding module uses
Identical 1 point of 32 power splitter.It is connected by power splitter, realizes array signal branch, save design space, it is easy for installation；Also
It is matched arc-shaped with spherical antenna 1 at the top of the cover including cylindrical cover；Cover lower opening and the pedestal
7 edges match；Low noise is connect with down conversion module with antenna element by SMP connector.More by the connection of SMP connector
Add and stablizes conveniently.
When implementation, antenna element 2 is by a right-angled intersection microband paste, upper layer microstrip antenna substrate thickness 0.5mm, one point
Two feed power division network thickness 0.254mm, intermediate medium substrate thickness 2.1mm, capacitor feed structure and antenna chamber form；T/
The radiofrequency signal of R component enters the one-to-two after connecting by SMP connector and feeds power division network, by the same phase of input signal constant amplitude
Output, is fed directly into an arm of antenna, another arm of another way feed antenna after 90 ° of phase shifts, thus in antenna all the way
Mouthful face forms two orthogonal electric fields, and the electric field amplitude is equal, 90 ° of phase phase difference, forms circular polarisation electromagnetic wave in space.
The key of entire S frequency range spherical surface digital array Antenna Construction Design is low noise assembling and conformal structure design.
Error is decomposed one by one in each module in assembly and is controlled.It is to guarantee each assembly by accurate machining first
In addition the dimensional accuracy of part additionally uses some assembling jigs in assembly to assist control assembly precision.
This programme, which is used, carries out modularized design for power division network, in such a way that cross-shaped structure part assembles it
The Miniaturization Design of structure design is not only realized, space has been reserved for the cable routing of ball interior, has greatly reduced simultaneously
1 point 32 yuan of power division network is resolved into common 1 point of 4 and 1 points of 8 power splitter, adopted simultaneously by the complexity of power splitter whole design
Inside antenna element, solves the problems, such as structure installation dimension with by the coupler Integrated design in calibration network.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. the spherical surface digital array antenna based on S frequency range, which is characterized in that including spherical antenna (1), the spherical antenna (1)
Surface evenly distributed be provided with 31 antenna elements (2)；The antenna element (2) is using back chamber right-angled intersection microband paste day
Line feeds two feeding points for intersecting patch respectively by power division network and 90 ° of phase shift delays, realizes broadband and wideangle
Circular polarization characteristics；The spherical antenna (1) is connect by support column (3) with electrical box (6)；It is set inside the spherical antenna (1)
It is equipped with multichannel low noise and down conversion module；Electrical box (6) bottom is mounted in pedestal (7)；The electrical box (6) is internal
It is provided with the conversion of multichannel adc data and optical communications module, calibration network module and power feeding module；Wherein, antenna element (2)
Reception for electromagnetic wave；Low noise and down conversion module are used for amplification, filtering and the down coversion of signal；Adc data conversion with
Optical communications module is used for signal sampling, Digital Down Convert, speed conversion, high speed data transfer；Calibration network module realizes antenna
Internal calibration；In the course of work, after antenna element (2) receives signal, low noise is entered under by the straight-through end of coupler
The signal received is amplified, is filtered by frequency-variable module, low noise, generates 200MHz bandwidth intermediate-freuqncy signal, sampled through A/D,
Enter digital signal processor after digital mixing, extraction to handle the signal received, finally exports required signal.
2. the spherical surface digital array antenna according to claim 1 based on S frequency range, which is characterized in that the pedestal (7)
Stage is provided with right Hot-air fan and heat release hole, and pedestal (7) side is also equipped with heat release hole (8).
3. the spherical surface digital array antenna according to claim 1 based on S frequency range, which is characterized in that the calibration network
When module works, calibration signal is entered by calibration network power splitter (4) input port, and the calibration network power splitter (4) is 1 point
32 power splitters enter coupler after information is divided into 32 road sign calibration signals, are coupled to low noise and down coversion mould by coupler
Block, low noise, down coversion, AD conversion of the coupled signal by receiving channel, entering signal processing unit are obtained in conjunction with measurement
Antenna element magnitude-phase characteristics, calibration network magnitude-phase characteristics and each antenna element location information, complete the calibration of amplitude and phase of receiving channel
Processing.
4. the spherical surface digital array antenna according to claim 3 based on S frequency range, which is characterized in that 1 point of 32 function point
Device includes 1 point of 4 power splitter and 41 point of 8 power splitters；The power feeding module uses identical 1 point of 32 power splitter.
5. the spherical surface digital array antenna according to claim 1 based on S frequency range, which is characterized in that further include cylinder
Cover, be matched arc-shaped with spherical antenna (1) at the top of the cover；Cover lower opening and the pedestal (7) edge
Match.
6. the spherical surface digital array antenna according to claim 1 based on S frequency range, which is characterized in that the low noise with
Down conversion module is connect with antenna element by SMP connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821031479.5U CN208478544U (en) | 2018-07-02 | 2018-07-02 | Spherical surface digital array antenna based on S frequency range |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821031479.5U CN208478544U (en) | 2018-07-02 | 2018-07-02 | Spherical surface digital array antenna based on S frequency range |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221318A (en) * | 2019-03-18 | 2019-09-10 | 上海微小卫星工程中心 | A kind of satellite antenna and satellite navigation signal enhancement method |
| CN112490690A (en) * | 2019-09-11 | 2021-03-12 | 英业达科技有限公司 | Antenna structure and operation method thereof |
| CN112629340A (en) * | 2020-12-10 | 2021-04-09 | 南京长峰航天电子科技有限公司 | P-band array feed system and control method thereof |
| CN115275644A (en) * | 2022-06-24 | 2022-11-01 | 京东方科技集团股份有限公司 | Spherical conformal phased-array antenna and electronic equipment |
-
2018
- 2018-07-02 CN CN201821031479.5U patent/CN208478544U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221318A (en) * | 2019-03-18 | 2019-09-10 | 上海微小卫星工程中心 | A kind of satellite antenna and satellite navigation signal enhancement method |
| CN112490690A (en) * | 2019-09-11 | 2021-03-12 | 英业达科技有限公司 | Antenna structure and operation method thereof |
| CN112490690B (en) * | 2019-09-11 | 2022-12-20 | 英业达科技有限公司 | Antenna structure and operation method thereof |
| CN112629340A (en) * | 2020-12-10 | 2021-04-09 | 南京长峰航天电子科技有限公司 | P-band array feed system and control method thereof |
| CN115275644A (en) * | 2022-06-24 | 2022-11-01 | 京东方科技集团股份有限公司 | Spherical conformal phased-array antenna and electronic equipment |
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