CN106169654B - A kind of broadband active multibeam antenna system - Google Patents
A kind of broadband active multibeam antenna system Download PDFInfo
- Publication number
- CN106169654B CN106169654B CN201610422155.3A CN201610422155A CN106169654B CN 106169654 B CN106169654 B CN 106169654B CN 201610422155 A CN201610422155 A CN 201610422155A CN 106169654 B CN106169654 B CN 106169654B
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- frequency front
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- multifunctional radio
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/28—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the amplitude
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
Abstract
The invention patent relates to Wide band array antenna fields, specifically broadband active multibeam antenna system, including broadband active aerial array and multiple beam forming network.Broadband active aerial array contains at least two alignment source and Multifunctional radio-frequency front end and a control unit, alignment source receives multi-channel rf signal and carries out pitching to synthesis, and Multifunctional radio-frequency front end carries out low noise amplification, filtering, amplitude weighting and phase shift to the radiofrequency signal that alignment source exports and handles；Control unit receives externally input control instruction, decaying, phase shift code value inside adjustment Multifunctional radio-frequency front end；Multiple beam forming network is realized based on network of lenses, is synthesized to the radiofrequency signal of each Multifunctional radio-frequency front end output, in orientation while output multi-channel wave beam.Broadband active multiple-beam system uses the inverting bearing calibration of near field bore.The present invention compares the wideband multi-beam system using digital beam froming, and equipment amount greatly reduces, and weight, cost and power consumption are greatly lowered, and are easy to Project Realization.
Description
Technical field
The invention patent relates to the broadband active aerial systems in Wide band array antenna field, especially electronic reconnaissance system
System, specifically broadband active multibeam antenna system.
Background technique
In order to adapt to detect receipts demand to a variety of electronic signals under the conditions of complex electromagnetic environment, being badly in need of one kind can satisfy height
The array antenna system of the technical requirements such as gain, big instant bandwidth, wide airspace covering.Broadband active multibeam antenna system can be with
Multiple reception wave beams are formed simultaneously, wide-angle scanning are realized by the fast dispatch of wave beam, and array antenna is internally integrated width
Band active circuit, the high-gain being able to achieve under big bandwidth condition detect receipts.Therefore, broadband active multibeam antenna system is detectd in electronics
It is used widely in receipts system.
Wideband multi-beam forming method includes that analog beam is formed, digital beam froming and light beam are formed.Three kinds of methods
Respectively there are advantage and disadvantage, the error of analog beam formation introducing, distortion are larger, but performance can receive；Digital beam froming flexibility
Height, but there is the problems such as timing, shake and power consumption；Light beam formation is able to achieve bigger bandwidth, but dynamic range is smaller, and steady
It is qualitative poor.
By taking a simplified 4 yuan linear array as an example, the broadband reception multiple-beam system framework of technology is formed using analog beam
See Figure 1, the reception signal of each antenna element are synthesized in beam-forming network after radio-frequency front-end improves, output
Multi-channel rf wave beam；Using the broadband reception multiple-beam system framework See Figure 2 of digital beam forming technology, each antenna element
Signal is received after radio-frequency front-end improves, after frequency conversion and digitized processing, synthesizes output multi-channel base band wave beam in numeric field,
It must assure that the time-delay alignment of multichannel data before Wave beam forming；Wave beam forming needs very big operand and very high operation speed
Degree.
Inventor has found to ask using the wideband multi-beam system of digital beam forming technology in the implementation of the present invention
Topic is: when instant bandwidth is in 1GHz or more, being limited to component level, system equipment amount dramatically increases, weight, cost and function
Consumption also increased dramatically, in addition the timing problems of system, so that engineering realizability substantially reduces.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, a kind of broadband active multibeam antenna system is provided.
The present invention is implemented with the following technical solutions:
A kind of broadband active multibeam antenna system, including broadband active aerial array and multiple beam forming network；
The broadband active aerial array contains at least two alignment source and Multifunctional radio-frequency front end and a control is single
Member, wherein alignment source and Multifunctional radio-frequency front end using blind with integrated, alignment source receive multi-channel rf signal and carry out pitching to
Synthesis；Multifunctional radio-frequency front end carries out at low noise amplification, filtering, amplitude weighting and phase shift the radiofrequency signal that alignment source exports
Reason；Control unit receives externally input control instruction, decaying, phase shift code value inside adjustment Multifunctional radio-frequency front end；
The multiple beam forming network is realized based on network of lenses, is closed to the radiofrequency signal of each Multifunctional radio-frequency front end output
At in orientation while output multi-channel wave beam.
The beneficial effects of the present invention are: compared to the wideband multi-beam system using digital beam forming technology, the present invention
Radio frequency simultaneous multiple beams are realized using network of lenses, substantially reduce system equipment amount, weight, cost and power consumption also decrease；
There is no complicated timing problems in beam forming process, engineering realizability is substantially increased.
Beneficial effects of the present invention also reside in: carrying out array bore using the multifunction chip in Multifunctional radio-frequency front end
Phase adjusted can be directed toward the multi-beam of output simultaneously and carry out small range scanning, so that whole system beam scanning is cleverer
It is living, comprehensive.
Detailed description of the invention
Fig. 1 is the broadband reception multiple-beam system framework of analog beam formation technology；
Fig. 2 is the broadband reception multiple-beam system framework of digital beam forming technology；
Fig. 3 is broadband active multibeam antenna system block diagram of the present invention；
Fig. 4 is the alignment source block diagram in the present invention；
Fig. 5 is the Multifunctional radio-frequency front end block diagram in the present invention；
Fig. 6 is the multi-beam directional diagram of one embodiment of the invention, and the centre frequency of the embodiment is 9GHz；
Fig. 7 is the multi-beam directional diagram of another embodiment of the present invention, and the centre frequency of the embodiment is 10GHz；
Fig. 8 is the multi-beam directional diagram of further embodiment of this invention, and the centre frequency of the embodiment is 11GHz.
Specific embodiment
As shown in Fig. 3,4,5, the present invention is described in detail below in conjunction with attached drawing.
A kind of broadband active multibeam antenna system, including broadband active aerial array 1 and multiple beam forming network 2, broadband has
It is connected between source antenna array 1 and multiple beam forming network 2 by radio-frequency cable 14；
Preferably, the broadband active aerial array 1 contain at least two alignment source 11 and Multifunctional radio-frequency front end 12 with
An and control unit 13, wherein alignment source 11 and the use of Multifunctional radio-frequency front end 12 are blind with integrated, the reception of alignment source 11 multichannel
Radiofrequency signal simultaneously carries out pitching to synthesis；Multifunctional radio-frequency front end 12 carries out low noise to the radiofrequency signal that alignment source 11 exports and puts
Greatly, filtering, amplitude weighting and phase shift processing；Control unit 13 receives externally input control instruction, before adjusting Multifunctional radio-frequency
Decaying, phase shift code value inside end 12；
Preferably, the multiple beam forming network 2 is realized based on network of lenses, to the radio frequency of each Multifunctional radio-frequency front end 12 output
Signal is synthesized, in orientation while output multi-channel wave beam.
Preferably, the alignment source 11 includes mutiple antennas unit 111 and a synthesis network 112；The antenna element
111 for receiving radiofrequency signal；The synthesis network 112 is used to carry out pitching to the received radiofrequency signal of each antenna element 111
To synthesis.
Preferably, the antenna element 111 uses micro-strip oscillator.
Preferably, the Multifunctional radio-frequency front end 12 include: low noise amplification chip (LNA) 121, multifunction chip 122,
Automatic gaining controling chip (AGC) 123, amplifier chip 124, balanced device chip 125；The low noise amplification chip 121 is used
In to radiofrequency signal progress low noise amplification；The multifunction chip 122 be used for radiofrequency signal carry out pre-selection filtering, amplitude and
Phase adjusted；The automatic gaining controling chip (AGC) 123 is for expansion system dynamic；The amplifier chip 124 for pair
Each road signal power amplification；The balanced device chip 125 is used to improve the fluctuating of Multifunctional radio-frequency front end 12.
Preferably, the network of lenses is designed using microstrip circuit, is a kind of true time delay Beam-former.
Preferably, the system is added using the amplitude that the multifunction chip in Multifunctional radio-frequency front end 12 carries out array bore
Power, to improve the minor lobe rejection ability of antenna system.
Preferably, the system carries out the phase tune of array bore using the multifunction chip in Multifunctional radio-frequency front end 12
Section can be scanned the multi-beam of output simultaneously.
A kind of bearing calibration of the system, the system use the inverting bearing calibration of near field bore, the specific stream of correction
Journey is as follows:
Step 1: using the near field amplitude and phase of microwave dark room measuring system acquisition antenna system；
Step 2: obtaining the amplitude and phase Distribution Value of antenna aperture with FFT inversion algorithm；
Step 3: by the control unit adjustment decaying of Multifunctional radio-frequency front end, phase shift code value, to the width phase difference of bore into
Row compensation；
Step 4: being met the requirements if compensated antenna system width is mutually distributed, terminate correction course, otherwise, repeat step 1-
Step 3.
For make those skilled in the art can better understand that the present invention, in the following with reference to the drawings and specific embodiments to this hair
It is bright to be described in further details.
This example provides a kind of broadband active multibeam antenna system, centre frequency 10GHz, instant bandwidth 2GHz.
As shown in figure 3, broadband active aerial array 1 and multiple beam forming network 2 are connected by radio-frequency cable 15.
Broadband active aerial array 1 is by 16 alignment sources 11 and 16 Multifunctional radio-frequency front end 12 and 1 control units 13
Composition.
Alignment source 11 synthesizes network 112 by 16 antenna element 111 and 1 16:1 and integrates, and antenna element 111 is for receiving
16 tunnel radiofrequency signals, synthesis network 112 receives signal to synthesis in pitching all the way, while having band-pass filtering function.Antenna list
Member 111 uses micro-strip a period of time, has many advantages, such as that small in size, light-weight, section is low, and printed circuit technique is suitble to produce in enormous quantities,
Performance in simple, high-efficient, battle array is fed simultaneously to stablize.
Synthesis network 112 is synthesized in 16 road signal of pitching Xiang Dui, higher to having per amplitude, phase equalization all the way
It is required that consider that the factors such as power is moderate, structure size is suitable are realized using Wilkinson power splitter form, synthesis network 112
Bandpass filter uses comb-like transmission cable architecture, it has many advantages, such as wide bandwidth, filter with low insertion loss, compact-sized.
Multifunctional radio-frequency front end 12 receives signal to alignment source and carries out low noise amplification, can adjust 16 according to system requirements
Road signal amplitude and phase.Multifunctional radio-frequency front end 12 is by low noise amplification chip (LNA) 121, multifunction chip 122, automatic
Gain control coremaking piece (AGC) 123, amplifier chip 124, balanced device chip 125 are integrated.
The realization of control unit 13 controls 16 Multifunctional radio-frequency front end attenuated insides, phase shifts.Control unit 13 connects
Externally input control command is received, order is forwarded to by each Multifunctional radio-frequency front end by interface conversion circuit.
Beam-forming network 2 is realized based on network of lenses, and for synthesizing to 16 tunnel radiofrequency signals, output is penetrated on 16 tunnels simultaneously
Frequency wave beam, covering orientation is to ± 45 °.
Since active antenna system processes each difference between channels of bring, deviation, the minor lobe of beam position can be generated
The problems such as level difference, needs system compensation to carry out the amendment of appropriateness.Present example is anti-using near field bore in microwave dark room
The correction of algorithm progress system.
In present example, the multifunction chip in Multifunctional radio-frequency front end is adjusted, multi-beam ± 3 ° may be implemented
Scanning.
Fig. 6 gives the multi-beam directional diagram of embodiment 9GHz.Fig. 7 gives the multi-beam directional diagram of embodiment 10GHz.
Fig. 8 gives the multi-beam directional diagram of embodiment 11GHz.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the invention within the spirit and principle of innovation and creation
Protection scope within.
Claims (7)
1. a kind of broadband active multibeam antenna system, it is characterised in that: including broadband active aerial array and multiple beam forming network；
The broadband active aerial array contains at least two alignment source and Multifunctional radio-frequency front end and a control unit,
In, using blind with integrated, alignment source receives multi-channel rf signal and simultaneously carries out pitching to synthesis for alignment source and Multifunctional radio-frequency front end；
Multifunctional radio-frequency front end carries out low noise amplification, filtering, amplitude weighting and phase shift to the radiofrequency signal that alignment source exports and handles；Control
Unit processed receives externally input control instruction, decaying, phase shift code value inside adjustment Multifunctional radio-frequency front end；
The multiple beam forming network is realized based on network of lenses, is synthesized to the radiofrequency signal of each Multifunctional radio-frequency front end output,
In orientation while output multi-channel wave beam.
2. broadband active multibeam antenna system as described in claim 1, it is characterised in that: the alignment source includes multiple days
Line unit and a synthesis network；The antenna element is for receiving radiofrequency signal；The synthesis network is used for each antenna list
The received radiofrequency signal of member carry out pitching to synthesis.
3. broadband active multibeam antenna system as claimed in claim 2, it is characterised in that: the antenna element uses micro-strip
Oscillator.
4. broadband active multibeam antenna system as described in claim 1, it is characterised in that: the Multifunctional radio-frequency front end packet
It includes: low noise amplification (LNA) chip, multifunction chip, automatic gaining controling chip (AGC), amplifier chip, balanced device core
Piece；The low noise amplification chip is used to carry out low noise amplification to radiofrequency signal；The multifunction chip is used to believe radio frequency
Number carry out pre-selection filtering, amplitude and phase are adjusted；The automatic gaining controling chip (AGC) is for expansion system dynamic；It is described
Amplifier chip is used to amplify each road signal power；The balanced device chip is used to improve the fluctuating of Multifunctional radio-frequency front end.
5. broadband active multibeam antenna system as described in claim 1, it is characterised in that: the network of lenses uses micro-strip
Circuit design is a kind of true time delay Beam-former.
6. broadband active multibeam antenna system as claimed in claim 4, it is characterised in that: before system uses Multifunctional radio-frequency
Multifunction chip in end carries out the amplitude weighting of array bore, to improve the minor lobe rejection ability of antenna system.
7. broadband active multibeam antenna system as claimed in claim 4, it is characterised in that: the system is penetrated using multi-functional
Multifunction chip in frequency front end carries out the phase adjusted of array bore, can be scanned to the multi-beam of output simultaneously.
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| CN201610422155.3A CN106169654B (en) | 2016-06-08 | 2016-06-08 | A kind of broadband active multibeam antenna system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107783086B (en) * | 2017-10-17 | 2021-01-05 | 中国电子科技集团公司第三十八研究所 | Method for diagnosing distorted position of antenna array aperture amplitude phase field |
| CN108267720B (en) * | 2018-01-31 | 2021-08-13 | 中国电子科技集团公司第三十八研究所 | Simultaneous multi-beam selection switch for multi-target search and tracking and scheduling method |
| CN108562876A (en) * | 2018-01-31 | 2018-09-21 | 中国电子科技集团公司第三十八研究所 | Broadband low minor lobe simulates multiple-beam array reconnaissance system |
| CN112467385B (en) * | 2020-10-27 | 2023-11-07 | 北京空间飞行器总体设计部 | Base station antenna common-port surface REV amplitude-phase correction method |
| CN114785370A (en) * | 2021-01-05 | 2022-07-22 | 中国移动通信有限公司研究院 | Active antenna assembly, active antenna unit, radio frequency front end identification method and device |
| CN115336185A (en) * | 2022-06-30 | 2022-11-11 | 上海移远通信技术股份有限公司 | Communication method and terminal device |
| CN115378473A (en) * | 2022-07-27 | 2022-11-22 | 中国船舶重工集团公司第七二四研究所 | Phased array communication broadband beam alignment method based on narrowband simultaneous multi-beam coverage |
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| US6160519A (en) * | 1998-08-21 | 2000-12-12 | Raytheon Company | Two-dimensionally steered antenna system |
| CN101065912A (en) * | 2004-07-30 | 2007-10-31 | 香港应用科技研究院有限公司 | Wlan access point with extended coverage area |
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