CN103022698B - The system of phase array amplitude weighting can be realized - Google Patents
The system of phase array amplitude weighting can be realized Download PDFInfo
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Abstract
The invention discloses a kind of system that can realize phase array amplitude weighting, be applied between external circuit and goal systems, this system comprises: wave beam generation module and phased array antenna module; Wherein, described wave beam generation module, couples mutually with described external circuit and phased array antenna module; Described phased array antenna module, couples mutually with described wave beam generation module and described goal systems.The invention solves while minor level can being reduced in the phased array the problem that can also reduce costs, conveniently implement.
Description
Technical Field
The invention relates to the field of communication, in particular to a system capable of realizing phased array amplitude weighting.
Background
With the development of science and technology, modern transportation vehicles become faster and faster, and communication antennas in a mechanical scanning form are more and more difficult to adapt to real-time tracking of a high-speed moving target system. The phased array antenna replaces mechanical scanning by electric control scanning, improves the tracking speed of the antenna on a target system, and is also the development direction of the current communication antenna.
In the prior art, with the increasingly wide application of a phased array system, the sidelobe level becomes a very important index. The ratio of the maximum of the side lobe to the maximum of the main lobe, called the side lobe level, is generally expressed in decibels and is defined as: 10lg (side lobe maximum power/main lobe maximum power), and if the ratio of the side lobe maximum to the corresponding power of the main lobe maximum is 0.01, the side lobe level is-20 dB. The smaller the main lobe width, the sharper the pattern, indicating more concentrated antenna radiation. Therefore, the sidelobe level determines the anti-interference and anti-clutter capability of a phased array system to a great extent, and is closely related to tactics and technical indexes of the phased array system. According to the phased array theory, three methods of amplitude weighting, density weighting and phase weighting can be adopted to reduce the side lobe level.
The method for reducing the side lobe level by amplitude weighting is to weight the excitation signal current applied to each radiation unit in the phased array antenna array according to a certain irradiation function, such as Taylor distribution, Chebyshev distribution, cosine distribution function with steps and the like.
The existing phased array system generally adopts a large phased array antenna with more radiation units in order to obtain indexes such as lower sidelobes, and the design structure is complex, the cost is too high, the volume is large, the practicability is not high, and the implementation is not convenient.
Therefore, how to reduce the sidelobe level in the phased array and reduce the cost and facilitate the implementation becomes a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a system capable of realizing phased array amplitude weighting, so as to solve the problems that the side lobe level can be reduced in a phased array, the cost can be reduced, and the implementation is convenient.
In order to solve the above technical problem, the present invention provides a system capable of implementing phased array amplitude weighting, applied between an external circuit and a target system, the system comprising: a beam generation module and a phased array antenna module; wherein,
the wave beam generating module is coupled with the external circuit and the phased array antenna module and is used for receiving the radio frequency current sent by the external circuit, adjusting the power and the phase of the radio frequency current, generating a radio frequency signal and sending the radio frequency signal to the phased array antenna module;
the phased array antenna module is coupled with the beam generation module and the target system, and is used for receiving the radio frequency signal sent by the beam generation module, converting the radio frequency signal into an electromagnetic wave signal and transmitting the electromagnetic wave signal to the target system.
Further, the beam generating module is further configured to receive a radio frequency signal sent by the phased array antenna module, adjust power and phase of the radio frequency signal, and transmit the radio frequency signal to the external circuit.
Further wherein the beam generation module is further coupled to the external circuit through a sigma/delta port.
Further, the phased array antenna module is further configured to receive an electromagnetic wave signal sent by the target system, convert the electromagnetic wave signal into a radio frequency signal, and send the radio frequency signal to the beam generating module.
Further wherein, the phased array antenna module is further comprised of at least one radiating element.
Further, wherein the beam generating module includes: the power divider comprises an unequal power division network module, a program-controlled attenuator, a phase shifter, a control module and a power supply; wherein
The unequal power distribution network module is coupled with the external circuit, the programmable attenuator and the power supply, and is used for receiving power supply of the power supply, receiving radio-frequency current sent by the external circuit to perform initial power distribution with a fixed proportion, generating a distribution radio-frequency signal, and sending the distribution radio-frequency signal to the programmable attenuator;
the program-controlled attenuator is coupled with the unequal power distribution network module, the phase shifter, the control module and the power supply, and is used for receiving power supply of the power supply, receiving a control signal sent by the control module, performing power fine-tuning processing on a distributed radio frequency signal sent by the unequal power distribution network module, generating a fine-tuning radio frequency signal, and sending the fine-tuning radio frequency signal to the phase shifter;
the phase shifter is coupled with the programmable attenuator, the control module, the power supply and the phased array antenna module, and is used for receiving power supply of the power supply, receiving a control signal sent by the control module, performing phase adjustment processing on a fine-tuning radio frequency signal output by the programmable attenuator, generating a radio frequency signal and sending the radio frequency signal to the phased array antenna module;
the control module is coupled with the programmable attenuator and the phase shifter and used for outputting a control signal, controlling the programmable attenuator to perform power fine adjustment and controlling the phase shifter to perform phase adjustment on a received signal.
And the power supply is coupled with the unequal power distribution network module, the programmable attenuator and the phase shifter and is used for supplying power to the unequal power distribution network module, the programmable attenuator and the phase shifter.
Further, the unequal power distribution network module is further configured to receive the distributed radio frequency signals fed back by the programmable attenuator, synthesize the distributed radio frequency signals, form radio frequency current, and send the radio frequency current to the external circuit.
Further, the programmable attenuator is further configured to receive a control signal sent by the control module, perform power fine adjustment processing on a signal fed back by the phase shifter, and send the signal to the unequal power division network module.
Further, the phase shifter is further configured to receive a radio frequency signal fed back by the phased array antenna module, perform phase adjustment processing on the radio frequency signal, generate the fine-tuning radio frequency signal, and send the fine-tuning radio frequency signal to the programmable attenuator.
Compared with the prior art, the system capable of realizing phased array amplitude weighting achieves the following effects:
1) the system capable of realizing phased array amplitude weighting can greatly reduce the side lobe level of the phased array system by using the mode of combining the unequal power division network and the program-controlled attenuator, thereby reducing the cost, improving the tactical indexes of the phased array system and having strong practicability.
2) The system capable of realizing phased array amplitude weighting adopts the unequal power distribution network to carry out initial power distribution, can reduce the insertion loss of signals, thereby reducing the influence of the signals on beam gain, adopts the program-controlled attenuator to carry out power fine adjustment control, and can realize flexible control of applying different amplitude weighting coefficients to different wave positions.
Drawings
FIG. 1 is a block diagram of a system capable of implementing phased array amplitude weighting according to an embodiment of the present invention;
FIG. 2 is a block diagram of the architecture of the specific internals in the system of FIG. 1;
FIG. 3 is a schematic diagram of signal power distribution of a system capable of implementing phased array amplitude weighting according to an embodiment of the present invention during signal transmission;
fig. 4 is a graph of amplitude weighting coefficients for a system capable of phased array amplitude weighting according to an embodiment of the present invention.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The following description is of the preferred embodiment for carrying out the invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.
The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1, a system capable of implementing phased array amplitude weighting according to an embodiment of the present invention is applied between an external circuit and a target system, and includes: a beam generating module 10 and a phased array antenna module 20; wherein,
the beam generating module 10 is coupled to the external circuit and the phased array antenna module 20, and configured to receive a radio frequency current sent by the external circuit, adjust power and phase of the radio frequency current, generate a radio frequency signal, and send the radio frequency signal to the phased array antenna module 20.
In addition, the beam generating module 10 is further configured to receive a radio frequency signal sent by the phased array antenna module 20, adjust a power meter phase of the radio frequency signal, and transmit the radio frequency signal to the external circuit.
In a specific embodiment, the beam generating module 10 is connected to the external circuit through a sigma/delta port, which is not limited herein.
The phased array antenna module 20 is coupled to the beam generating module 10 and the satellite, and configured to receive the radio frequency signal sent by the beam generating module 10, convert the radio frequency signal into an electromagnetic wave signal, and transmit the electromagnetic wave signal to the satellite.
In addition, the phased array antenna module 20 is further configured to receive an electromagnetic wave signal sent by the target system, convert the electromagnetic wave signal into a radio frequency signal, and send the radio frequency signal to the beam generating module 10.
In a specific embodiment, the phased array antenna module 20 is composed of at least one radiation element coupled to the beam forming module 10 for transmitting or receiving radio waves; when transmitting a signal, the radiation unit converts a high frequency current transmitted from the beam generating module 10 into an electromagnetic wave signal and radiates the electromagnetic wave signal, and when receiving a signal, the radiation unit converts an external electric wave signal into a high frequency current and transmits the high frequency current to the beam generating module 10. The above is not limited herein.
Further, as shown in fig. 2, the beam generating module 10 includes: the power divider comprises an unequal power division network module 101, a programmable attenuator 102, a phase shifter 103, a control module 104 and a power supply 105; wherein
The unequal power distribution network module 101 is coupled to the external circuit, the programmable attenuator 102 and the power supply 105, and configured to receive power supplied by the power supply 105, receive radio frequency current sent by the external circuit, perform power distribution in a preliminary fixed proportion, generate a distributed radio frequency signal, and send the distributed radio frequency signal to the programmable attenuator 102;
in addition, the unequal power distribution network module 101 is further configured to receive the distributed radio frequency signals fed back by the programmable attenuator 102, synthesize the distributed radio frequency signals, and then form radio frequency current to be sent to the external circuit.
In a specific embodiment, the unequal power distribution network module 101 adopts an unequal power distribution mode, and when sending a signal, the unequal power distribution network module 101 preliminarily performs power distribution with a fixed proportion on radio-frequency current sent from a sigma/delta port and divides the radio-frequency current into N paths of signals to be transmitted to the programmable attenuator 102; when receiving signals, the unequal power distribution network module 101 synthesizes N paths of received radio frequency signals sent from the programmable attenuator 102 to form radio frequency current, and sends the radio frequency current to the external circuit for processing.
The programmable attenuator 102 is coupled to the unequal power distribution network module 101, the phase shifter 103, the control module 104 and the power supply 105, and configured to receive power supplied by the power supply 105, receive a control signal sent by the control module 104, perform power fine-tuning processing on a distributed radio frequency signal sent by the unequal power distribution network module 101, generate a fine-tuning radio frequency signal, and send the fine-tuning radio frequency signal to the phase shifter 103;
in addition, the programmable attenuator 102 is further configured to receive a control signal sent by the control module 104, perform power fine adjustment processing on a signal fed back by the phase shifter 103, and send the signal to the unequal power division network module 101.
The phase shifter 103 is coupled to the programmable attenuator 102, the control module 104, the power supply 105, and the phased array antenna module 20, and configured to receive power supplied by the power supply 105, receive a control signal sent by the control module 104, perform phase adjustment processing on the fine-tuning radio frequency signal output by the programmable attenuator 102, generate a radio frequency signal, and send the radio frequency signal to the phased array antenna module 20;
in addition, the phase shifter 103 is further configured to receive a radio frequency signal fed back by the phased array antenna module 20, perform phase adjustment processing on the radio frequency signal, generate the fine-tuning radio frequency signal, and send the fine-tuning radio frequency signal to the programmable attenuator 102.
The control module 104 is coupled to the programmable attenuator 102 and the phase shifter 103, and configured to output a control signal, control the programmable attenuator 102 to perform power fine adjustment, and control the phase shifter 103 to perform phase adjustment on a received signal.
The power supply 105 is coupled to the unequal power distribution network module 101, the programmable attenuator 102, and the phase shifter 103, and is configured to supply power to the unequal power distribution network module 101, the programmable attenuator 102, and the phase shifter 103.
The following is a specific embodiment, and the principle of amplitude weighting in a system capable of implementing phased array amplitude weighting according to the present invention will be described in detail with reference to fig. 3 and 4.
The beam generating module 10 is connected to the external circuit through a sigma/delta port, specifically, as shown in fig. 3, the external circuit is connected to the unequal power distribution network module 101 through a sigma/delta port, and the unequal power distribution network module 101 preliminarily performs power distribution of a fixed proportion on the radio-frequency current emitted from the sigma/delta port and divides the radio-frequency current into N paths of signals to be transmitted to the programmable attenuator 102; when receiving signals, the unequal power distribution network module 101 synthesizes N paths of received radio frequency signals sent from the programmable attenuator 102 to form radio frequency current, and sends the radio frequency current to the external circuit for processing.
As shown in FIG. 4, a graph of amplitude weighting coefficient values for hypothetical phased array antennas, for wave bit 1 and channel 1, has an amplitude weighting value A1+B11For wave bit 2 and channel 1, the amplitude weighting value is A1+B21By analogy, for wave position M and channel 1, its amplitude weighted value is A1+BM1Wherein A is1Is a fixed value, which is the same for each of wave bits 1, 2, 3, … …, M, and for the same reason for the other channels, e.g., amplitude weights for wave bit M and channel N are AN+BMN。
Suppose the phased array antenna is at wave position 1 and amplitude A0The rf signal is sent to the unequal power division network module 101 from the port ∑, now assume a0The following equality conditions are satisfied:
then, after the rf signal is divided into N channels by the unequal power division network module 101, the 1 st channel is amplitude a1Channel 2 has amplitude A2By analogy, the amplitude of the Nth channel is AN. The control module 104 controls the power programmed attenuation value of the 1 st channel to be B according to the pre-stored wave bit 1 attenuation data value (as shown in FIG. 4)11The power program-controlled attenuation value of the 2 nd channel is B12In this analogy, the power programmable attenuator of the Nth channel is B1N. At this time, the amplitude output from the unequal power division network module 101 is a1After the 1 st RF signal is subjected to the fine power adjustment by the programmable attenuator 102, the amplitude value of the RF signal becomes A1+B11The amplitude output from the unequal power division network module 101 is a2After the power of the RF signal of path 2 is finely adjusted by the programmable attenuator 102, its amplitude value becomes A2+B12By analogy, the amplitude output from the unequal power division network module 101 is aNAfter the power of the Nth radio frequency signal is finely adjusted by the programmable attenuator 102, the amplitude value of the Nth radio frequency signal is changed into AN+B1N。
The radio frequency signal after the power amplitude fine tuning is transmitted to the phase shifter 103, and the phase shifting can compensate the time difference generated when the same signal reaches each different array element, so that the output in-phase of the phased array antenna module 20 is superposed to the maximum after the phase modulation of the phase shifter 103. Once the signal direction changes, the maximum pointing direction of the antenna array beam can be changed correspondingly by adjusting the phase shift amount of the phase shifter 103, thereby realizing the scanning and tracking of the beam.
The level values of the radiating elements fed into the phased array antenna module 20 satisfy the amplitude weighting value requirement of wave position 1 in fig. 4, and the amplitude distribution of the transmitted signal is shown in fig. 3.
For the amplitude weighting of other wave bits, the same principle is applied according to the above assumed wave bit 1.
Meanwhile, since the existing phased array transceiving system is reversible, the reception of the phased array antenna signal is the same as the transmission of the radio frequency signal discussed above, and will not be described in detail herein.
Compared with the prior art, the system capable of realizing phased array amplitude weighting achieves the following effects:
1) the system capable of realizing phased array amplitude weighting can greatly reduce the side lobe level of the phased array system by using the mode of combining the unequal power division network and the program-controlled attenuator, thereby reducing the cost, improving the tactical indexes of the phased array system and having strong practicability.
2) The system capable of realizing phased array amplitude weighting adopts the unequal power distribution network to carry out initial power distribution, can reduce the insertion loss of signals, thereby reducing the influence of the signals on beam gain, adopts the program-controlled attenuator to carry out power fine adjustment control, and can realize flexible control of applying different amplitude weighting coefficients to different wave positions.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A system for enabling phased array amplitude weighting between an external circuit and a target system, the system comprising: a beam generation module and a phased array antenna module; wherein,
the wave beam generating module is coupled with the external circuit and the phased array antenna module and is used for receiving the radio frequency current sent by the external circuit, adjusting the power and the phase of the radio frequency current, generating a radio frequency signal and sending the radio frequency signal to the phased array antenna module; the beam generation module comprises: the power divider comprises an unequal power division network module, a program-controlled attenuator, a phase shifter, a control module and a power supply; wherein,
the unequal power distribution network module is coupled with the external circuit, the programmable attenuator and the power supply, and is used for receiving power supply of the power supply, receiving radio-frequency current sent by the external circuit to perform initial power distribution with a fixed proportion, generating a distributed radio-frequency signal, and sending the distributed radio-frequency signal to the programmable attenuator; the amplitude of the distributed radio frequency signal is a fixed value for different wave positions;
the program-controlled attenuator is coupled with the unequal power distribution network module, the phase shifter, the control module and the power supply, and is used for receiving power supply of the power supply, receiving a control signal sent by the control module, performing power fine-tuning processing on a distributed radio frequency signal sent by the unequal power distribution network module, generating a fine-tuning radio frequency signal, and sending the fine-tuning radio frequency signal to the phase shifter;
the phase shifter is coupled with the programmable attenuator, the control module, the power supply and the phased array antenna module, and is used for receiving power supply of the power supply, receiving a control signal sent by the control module, performing phase adjustment processing on a fine-tuning radio frequency signal output by the programmable attenuator, generating a radio frequency signal and sending the radio frequency signal to the phased array antenna module;
the control module is coupled with the programmable attenuator and the phase shifter and is used for outputting a control signal, controlling the programmable attenuator to perform power fine adjustment on a received signal and controlling the phase shifter to perform phase adjustment on the received signal; the control module performs power fine-tuning control on the power program-controlled attenuation value of each path of distributed radio-frequency signals according to the pre-stored attenuation data value corresponding to each wave position in the phased array antenna amplitude weighting coefficient value table;
the power supply is coupled with the unequal power distribution network module, the programmable attenuator and the phase shifter and is used for supplying power to the unequal power distribution network module, the programmable attenuator and the phase shifter;
the phased array antenna module is coupled with the beam generation module and the target system, and is used for receiving the radio frequency signal sent by the beam generation module, converting the radio frequency signal into an electromagnetic wave signal and transmitting the electromagnetic wave signal to the target system.
2. The system for phased array amplitude weighting as claimed in claim 1, wherein said beam forming module is further configured to receive a radio frequency signal transmitted by said phased array antenna module, and adjust the power and phase of the radio frequency signal for transmission to said external circuit.
3. A system capable of phased array amplitude weighting as defined in any of claims 1 or 2, wherein the beam generation module is further coupled to the external circuitry through a sigma/delta port.
4. The system for phased array amplitude weighting as claimed in claim 1, wherein said phased array antenna module is further configured to receive electromagnetic wave signals transmitted by said target system and convert the electromagnetic wave signals into radio frequency signals to be transmitted to said beam generating module.
5. The system capable of phased array amplitude weighting as recited in any of claims 1 or 4, wherein said phased array antenna module further comprises at least one radiating element.
6. The system for phased array amplitude weighting as claimed in claim 1, wherein the unequal power division network module is further configured to receive the distributed rf signals fed back from the programmable attenuator, combine the distributed rf signals to form rf currents, and send the rf currents to the external circuit.
7. The system for phased array amplitude weighting according to claim 1, wherein the programmable attenuator is further configured to receive a control signal sent by the control module to perform power fine adjustment processing on a signal fed back by the phase shifter, and send the signal to the unequal power division network module.
8. The system for phased array amplitude weighting as claimed in claim 1, wherein said phase shifter is further configured to receive a radio frequency signal fed back from said phased array antenna module, perform a phase adjustment process on the radio frequency signal, generate the fine-tuning radio frequency signal, and send the fine-tuning radio frequency signal to said programmable attenuator.
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| CN105098378B (en) * | 2014-05-06 | 2020-09-15 | 安波福技术有限公司 | Radar antenna assembly |
| CN106256044B (en) * | 2014-05-07 | 2019-11-12 | 华为技术有限公司 | A kind of phased array calibration method and phased array calibrate circuit |
| CN104092486B (en) * | 2014-07-11 | 2017-07-28 | 苏州市江海通讯发展实业有限公司 | For realizing the system and method that wave beam is received and dispatched at the unified wide angle of phased array antenna |
| US10340583B2 (en) * | 2017-10-13 | 2019-07-02 | Quintel Cayman Limited | Cellular antenna for elevated and obstructed deployment |
| CN108511910B (en) * | 2018-01-19 | 2020-10-30 | 烟台大学文经学院 | Narrow beam antenna obtained based on compressed wide beam antenna and design method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166690A (en) * | 1991-12-23 | 1992-11-24 | Raytheon Company | Array beamformer using unequal power couplers for plural beams |
| US5276452A (en) * | 1992-06-24 | 1994-01-04 | Raytheon Company | Scan compensation for array antenna on a curved surface |
| CN101872001A (en) * | 2010-06-29 | 2010-10-27 | 中国科学院生物物理研究所 | Parallel emitting and receiving radio-frequency interface circuit and phased array emitting and receiving head coil |
| CN102646874A (en) * | 2012-04-20 | 2012-08-22 | 电子科技大学 | Four-dimensional antenna array based on single-pole multi-throw switch |
-
2012
- 2012-12-21 CN CN201210563187.7A patent/CN103022698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166690A (en) * | 1991-12-23 | 1992-11-24 | Raytheon Company | Array beamformer using unequal power couplers for plural beams |
| US5276452A (en) * | 1992-06-24 | 1994-01-04 | Raytheon Company | Scan compensation for array antenna on a curved surface |
| CN101872001A (en) * | 2010-06-29 | 2010-10-27 | 中国科学院生物物理研究所 | Parallel emitting and receiving radio-frequency interface circuit and phased array emitting and receiving head coil |
| CN102646874A (en) * | 2012-04-20 | 2012-08-22 | 电子科技大学 | Four-dimensional antenna array based on single-pole multi-throw switch |
Non-Patent Citations (2)
| Title |
|---|
| 任国敏."低副瓣雷达阵列天线与有源相控阵研究".《中国优秀硕士学位论文》.2011,第38页第4段-第40页倒数第2段，第54页第6段、图5.3. * |
| 王义春."毫米波锥形相控阵波束控制系统设计".《中国优秀硕士学位论文》.2011,第38页第1段. * |
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