CN108957149A - The calibration network design method of spherical surface digital array antenna - Google Patents
The calibration network design method of spherical surface digital array antenna Download PDFInfo
- Publication number
- CN108957149A CN108957149A CN201810705503.7A CN201810705503A CN108957149A CN 108957149 A CN108957149 A CN 108957149A CN 201810705503 A CN201810705503 A CN 201810705503A CN 108957149 A CN108957149 A CN 108957149A
- Authority
- CN
- China
- Prior art keywords
- calibration
- array antenna
- magnitude
- spherical surface
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses the calibration network design methods of spherical surface digital array antenna, including power division network, multi-channel rf CA cable assembly and multiple-path coupler, the calibration signal of input is evenly distributed to multichannel calibrated channel by power division network, it will be carried out per signal all the way and independent coupler to even by radio-frequency cable component, calibration signal is coupled to each low noise and down conversion module by multiple-path coupler；Then the magnitude-phase characteristics of each antenna element is obtained using near-field test；Field calibration obtains the magnitude-phase characteristics of receiving channel in sampling；By test, obtaining calibration network input port to the magnitude-phase characteristics between coupler output port can be realized the calibration of amplitude and phase of each receiving channel in conjunction with the magnitude-phase characteristics of three parts.When implementation, the function branch number of power division network is determined according to the antenna element quantity of array antenna, and more than antenna element quantity all the way, what is had more is used to connect load all the way function branch number.
Description
Technical field
The present invention relates to calibration network design methods, and in particular to a kind of calibration network design of spherical surface digital array antenna
Method.
Background technique
Since the signal level for entering array is lower, before being processed, it is necessary to first signal be amplified, converted
Processing.And it is tight between the output signal of each unit after signal enters each array element that the physical basis of array signal processing, which is,
Lattice are relevant, therefore it is required that entering the signal strict conformance in each channel after amplification and transformation；Otherwise, if each channel exports
Signal width phase and receiving signal amplitude phase unbalance can then cause directional diagram to deform, it is serious or even directional diagram can be made to lose completely
Effect.Therefore, guarantee to receive the important work that each channel signal Phase amplitude-matched is guarantee system worked well by calibrating
Make.
Summary of the invention
The present invention provides a kind of calibration network design methods of spherical surface digital array antenna, solve the width phase of antenna element
Calibration.
The present invention is achieved through the following technical solutions:
The calibration network design method of spherical surface digital array antenna, including power division network, multi-channel rf CA cable assembly and more
The calibration signal of input is evenly distributed to multichannel calibrated channel by road coupler, power division network, will be every by radio-frequency cable component
Signal and independent coupler are carried out to even all the way, and calibration signal is coupled to each low noise and down coversion mould by multiple-path coupler
Block；Then the magnitude-phase characteristics of each antenna element is obtained using near-field test；Field calibration obtains the width phase of receiving channel in sampling
Characteristic；By test, calibration network input port is obtained to the magnitude-phase characteristics between coupler output port, in conjunction with three parts
The calibration of amplitude and phase of each receiving channel can be realized in magnitude-phase characteristics.
Further, the function branch number of power division network is determined according to the antenna element quantity of array antenna, function branch number ratio
Mostly all the way, what is had more is used to connect load all the way antenna element quantity.
A kind of calibration network of the spherical surface digital array antenna on 31 tunnel, which is characterized in that including using claims 1 or 2
The power division network realizes calibration network design, and the power division network is 1 point of 32 power splitter.
Further, 1 point of 32 power splitter includes 1 point of 4 power splitter and 41 point of 8 power splitters；1 point of 4 function point
Every source signal of the signal as each 1 point of 8 power splitter all the way that device is assigned to.
Further, 1 point of 8 power splitter and 1 point of 4 power splitter all use rectangular array arrangement.
Further, low noise is connect with down conversion module with antenna element by SMP connector.Pass through SMP connector
Connect more stable convenience.
The present invention has the advantage that and the utility model has the advantages that
1, the present invention wakes up with a start signal standards branch by power splitter, and the width phase of each antenna element is obtained using near-field test
Characteristic；Field calibration obtains the magnitude-phase characteristics of receiving channel in sampling；By test, calibration network input port is obtained to coupler
The calibration of amplitude and phase of each receiving channel can be realized in conjunction with the magnitude-phase characteristics of three parts in magnitude-phase characteristics between output port；
2, the present invention divides 4 series connection to connect 1 point 8 by power splitter 1, and rectangular arranged realizes array signal branch, and saving is set
Space is counted, it is easy for installation；
3, the present invention connects more stable convenience by SMP connector.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this
The restriction of invention.
Embodiment 1
The calibration network design method of spherical surface digital array antenna, including power division network, multi-channel rf CA cable assembly and more
The calibration signal of input is evenly distributed to multichannel calibrated channel by road coupler, power division network, will be every by radio-frequency cable component
Signal and independent coupler are carried out to even all the way, and calibration signal is coupled to each low noise and down coversion mould by multiple-path coupler
Block；Then the magnitude-phase characteristics of each antenna element is obtained using near-field test；Field calibration obtains the width phase of receiving channel in sampling
Characteristic；By test, calibration network input port is obtained to the magnitude-phase characteristics between coupler output port, in conjunction with three parts
The calibration of amplitude and phase of each receiving channel can be realized in magnitude-phase characteristics.When implementation, the function branch number of power division network is according to array antenna
Antenna element quantity determine, function branch number more than antenna element quantity all the way, have more all the way be used to connect load.
When implementation, in conjunction with the actual design demand of power division network and connecting cable, production and processing, assembly and device performance water
Flat, index decomposition is as follows.Power division network has with connecting cable technical indicator project: input impedance, standing-wave ratio, Insertion Loss, amplitude
Maximum deviation, phase maximum deviation.
A kind of calibration network of the spherical surface digital array antenna on 31 tunnel, which is characterized in that including using claims 1 or 2
The power division network realizes calibration network design, and the power division network is 1 point of 32 power splitter.When implementation, 1 point of 32 power splitter packet
Include 1 point of 4 power splitter and 41 point of 8 power splitters；1 point of 4 power splitter assigned to per signal all the way as each 1
Divide the source signal of 8 power splitters；1 point of 8 power splitter and 1 point of 4 power splitter all use rectangular array arrangement, low noise and down coversion mould
Block is connect with antenna element by SMP connector.More stable convenience is connected by SMP connector.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (6)
1. the calibration network design method of spherical surface digital array antenna, which is characterized in that including power division network, multi-channel rf cable
The calibration signal of input is evenly distributed to multichannel calibrated channel, passes through radio-frequency cable by component and multiple-path coupler, power division network
Component will be carried out with independent coupler to even per signal all the way, multiple-path coupler by calibration signal be coupled to each low noise with
Down conversion module；Then the magnitude-phase characteristics of each antenna element is obtained using near-field test；Field calibration obtains receiving logical in sampling
The magnitude-phase characteristics in road；By testing, acquisition calibration network input port to the magnitude-phase characteristics between coupler output port, in conjunction with
The calibration of amplitude and phase of each receiving channel can be realized in the magnitude-phase characteristics of three parts.
2. the calibration network design method of spherical surface digital array antenna according to claim 1, which is characterized in that the function
The function branch number of subnetwork according to the antenna element quantity of array antenna determine, function branch number more than antenna element quantity all the way,
What is had more is used to connect load all the way.
3. a kind of calibration network of the spherical surface digital array antenna on 31 tunnels, which is characterized in that including using claims 1 or 2 institute
The method stated realizes calibration network design, and the power division network is 1 point of 32 power splitter.
4. the calibration network design method of spherical surface digital array antenna according to claim 3, which is characterized in that described 1
Dividing 32 power splitters includes 1 point of 4 power splitter and 41 point of 8 power splitters；What 1 point of 4 power splitter was assigned to often believes all the way
Source signal number as each 1 point of 8 power splitter.
5. the calibration network design method of spherical surface digital array antenna according to claim 4, which is characterized in that described 1
8 power splitters and 1 point of 4 power splitter are divided all to use rectangular array arrangement.
6. the calibration network design method of spherical surface digital array antenna according to claim 3, which is characterized in that described low
It makes an uproar to put and be connect with down conversion module with antenna element by SMP connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810705503.7A CN108957149A (en) | 2018-07-02 | 2018-07-02 | The calibration network design method of spherical surface digital array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810705503.7A CN108957149A (en) | 2018-07-02 | 2018-07-02 | The calibration network design method of spherical surface digital array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108957149A true CN108957149A (en) | 2018-12-07 |
Family
ID=64484751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810705503.7A Withdrawn CN108957149A (en) | 2018-07-02 | 2018-07-02 | The calibration network design method of spherical surface digital array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108957149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114422045A (en) * | 2021-12-30 | 2022-04-29 | 中国电子科技集团公司第二十九研究所 | Design method of phased array channel amplitude and phase correction network and storage medium |
-
2018
- 2018-07-02 CN CN201810705503.7A patent/CN108957149A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114422045A (en) * | 2021-12-30 | 2022-04-29 | 中国电子科技集团公司第二十九研究所 | Design method of phased array channel amplitude and phase correction network and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202002984U (en) | Multi-frequency-band passive intermodulation test instrument | |
| CN102281113B (en) | Communication relay device and standing-wave ratio detection device and method thereof | |
| CN108594013A (en) | A kind of broadband instantaneous frequency measurement system directly adopted based on radio frequency | |
| CN106130571B (en) | A kind of signal sampling method of reseptance and device based on frequency domain and airspace compressed sensing | |
| CN103840899A (en) | Automatic test device of transceiving assembly | |
| CN104714089A (en) | Spectrum analyzer with filter bank | |
| CN108627696B (en) | Measuring device and measuring method of vector network | |
| CN108957149A (en) | The calibration network design method of spherical surface digital array antenna | |
| CN209545572U (en) | A kind of separate type radio frequency matrix switch of high-isolation | |
| CN102437885A (en) | Communication equipment test device | |
| CN102879757A (en) | Calibration data correction method for test cable in thermal vacuum test | |
| CN104767019A (en) | Power distribution and combination machine based on ultra wide band coaxial impedance transformer | |
| CN205179373U (en) | A intermodulation test system that is used for POI's multifrequency section to stride standard | |
| CN102621386B (en) | System and method for measuring high-frequency impedance of low-voltage power line | |
| CN219068196U (en) | Intermodulation measurement device | |
| CN107070416A (en) | A kind of power amplifier module for supporting hot plug | |
| CN204556752U (en) | A kind of electromagnetic interference test device of double antenna and system | |
| CN102798844B (en) | Method for measuring input output delay signal isolation of same port | |
| CN204721339U (en) | A kind of signal receiving device of eight passage multimode systems | |
| CN106209185A (en) | Microwave remote sensing signal adapter | |
| CN203193645U (en) | Passive intermodulation fault location detection circuit structure based on multi-order digital sweep frequency | |
| CN203368408U (en) | Power detecting assembly used for large-power microwave amplifier | |
| CN203071872U (en) | Low-noise power amplification device and satellite navigation receiving device | |
| CN208353349U (en) | A kind of radar antenna reception signal conditioner | |
| CN103543427B (en) | Passive cross modulation test system calibration steps and device based on intelligent search algorithm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181207 |
|
| WW01 | Invention patent application withdrawn after publication |