CN103022698A - System allowing for phased-array amplitude weighting - Google Patents
System allowing for phased-array amplitude weighting Download PDFInfo
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- CN103022698A CN103022698A CN2012105631877A CN201210563187A CN103022698A CN 103022698 A CN103022698 A CN 103022698A CN 2012105631877 A CN2012105631877 A CN 2012105631877A CN 201210563187 A CN201210563187 A CN 201210563187A CN 103022698 A CN103022698 A CN 103022698A
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Abstract
The invention discloses a system allowing for phased-array amplitude weighting. The system is applied between an external circuit and a target system and comprises a wave beam generation module and a phased-array antenna module. The wave beam generation module is coupled with the external antenna and the phased-array antenna module. The phased-array antenna module is coupled to the wave beam generation module and the target system. The problems of lowering side lobe level in a phased array, lowering cost and facilitating implementation are solved by the use of the system.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of system that can realize the phase array amplitude weighting.
Background technology
Along with the development of science and technology, modern transport facility becomes more and more faster, the more and more difficult real-time tracking that adapts to the high-speed mobile goal systems of the communication antenna of mechanical scanning form.Phased array antenna replaces mechanical scanning by automatically controlled scanning, has improved the tracking velocity of antenna to goal systems, also is the developing direction of present communication antenna.
In the prior art, along with the increasingly extensive application of phased array system, minor level has become a very important index.Wherein, the peaked ratio of the relative main lobe of the maximum of secondary lobe is called minor level, generally represent with decibel, it is defined as: 10lg(secondary lobe maximum power/main lobe maximum power), be 0.01 such as the ratio of secondary lobe maximum and main lobe maximum corresponding power, then minor level is-20dB.Main lobe width is less, and directional diagram is more sharp-pointed, and the expression aerial radiation is more concentrated.Therefore, minor level determined to a great extent phased array system anti-interference with the ability such as anti-clutter, also with phased array system tactics, technical indicator close contacting arranged.And theoretical according to phase array, can adopt amplitude weighting, Density Weighted and three kinds of methods of phase weighting to reduce minor level.
Wherein, the method that adopts amplitude weighting to reduce minor level be exactly each radiating element applies in the phased array antenna array pumping signal electric current according to certain illumination function, be weighted such as modes such as Taylor's distribution, Chebyshev's distribution, cosine distribution functions with the level.
Can existing phased array system,, in order to obtain the lower indexs such as secondary lobe, generally adopt the large-scale phased array antenna of more radiating element, this kind project organization complexity, cost is too high, and volume is larger, and practicality is not high, implements not too convenient.
Therefore, how in phase array, can reduce and to reduce cost, convenient enforcement in the minor level, just become the technical problem that needs to be resolved hurrily.
Summary of the invention
The purpose of this invention is to provide a kind of system that can realize the phase array amplitude weighting, in phase array, can reduce the problem that can also reduce cost, conveniently implement in the minor level to solve.
For solving the problems of the technologies described above, the invention provides a kind of system that can realize the phase array amplitude weighting, be applied between external circuit and the goal systems, this system comprises: wave beam generation module and phased array antenna module; Wherein,
Described wave beam generation module, couple mutually with described external circuit and phased array antenna module, be used for receiving the radio-frequency current that described external circuit sends, and this radio-frequency current is carried out the adjustment of power and phase place, radio frequency signal generation is sent to described phased array antenna module;
Described phased array antenna module couples mutually with described wave beam generation module and described goal systems, is used for receiving the radiofrequency signal that described wave beam generation module sends, and this radiofrequency signal is converted to electromagnetic wave signal is sent to described goal systems.
Further, wherein, described wave beam generation module also is used for receiving the radiofrequency signal that described phased array antenna module sends, and this radiofrequency signal is carried out the adjustment of power and phase place, transfers to described external circuit.
Further, wherein, described wave beam generation module further couples mutually by ∑/△ port and described external circuit.
Further, wherein, described phased array antenna module also is used for receiving the electromagnetic wave signal that described goal systems sends, and this electromagnetic wave signal is converted to radiofrequency signal is sent to described wave beam generation module.
Further, wherein, described phased array antenna module further is comprised of at least one radiating element.
Further, wherein, described wave beam generation module comprises: do not wait the power division network module, programmable attenuator, phase shifter, control module and power supply; Wherein
The described power division network module that do not wait, couple mutually with described external circuit, programmable attenuator and power supply, be used for receiving described Power supply, and receive the power division that radio-frequency current that described external circuit sends carries out preliminary fixed proportion, generate and distribute radiofrequency signal, should distribute radiofrequency signal to be sent to described programmable attenuator;
Described programmable attenuator, couple mutually with not waiting power division network module, phase shifter, control module and power supply, be used for receiving the power supply of described power supply, and receive the control signal that described control module sends the described distribution radiofrequency signal that does not wait the power division network module to send is carried out the power trim process, generate the fine setting radiofrequency signal, should finely tune radiofrequency signal and be sent to described phase shifter;
Described phase shifter, couple mutually with programmable attenuator, control module, power supply and phased array antenna module, be used for receiving the power supply of described power supply, and receive control signal that described control module sends and the fine setting radiofrequency signal of described programmable attenuator output is carried out the phase place adjustment process, radio frequency signal generation sends to the phased array antenna module;
Described control module couples mutually with described programmable attenuator and phase shifter, is used for the output control signal, control described programmable attenuator and finely tune carrying out power, and the control phase shifter carries out the phase place adjustment to the signal of receiving.
Described power supply couples mutually with described power division network module, programmable attenuator and the phase shifter of not waiting, and is used to described do not wait power division network module, programmable attenuator and phase shifter power supply.
Further, wherein, the described power division network module that do not wait forms radio-frequency current after also synthesizing for the distribution radiofrequency signal that receives described programmable attenuator feedback and is sent to described external circuit.
Further, wherein, described programmable attenuator also carries out the power trim process for the control signal that receives described control module transmission to the signal that described phase shifter feeds back, and is sent to the described power division network module that do not wait.
Further, wherein, described phase shifter also is used for receiving the radiofrequency signal of described phased array antenna module feedback, and this radiofrequency signal is carried out the phase place adjustment process, and generates described fine setting radiofrequency signal and is sent to described programmable attenuator.
Compared with prior art, a kind of system that can realize the phase array amplitude weighting of the present invention has reached following effect:
1) a kind of system that can realize the phase array amplitude weighting of the present invention, use the mode that does not wait power division network and programmable attenuator to combine, can reduce significantly the phased array system minor level, thereby can reduce cost, improve phased array system war skill index, practical.
2) a kind of system that can realize the phase array amplitude weighting of the present invention, adopt and do not wait power division network to carry out the preliminary power distribution, can reduce the insertion loss of signal, thereby reduce signal to the impact of beam gain, adopt programmable attenuator to carry out the power vernier control, can realize different ripples position is applied the flexible control of different amplitude weighting coefficients.
Description of drawings
Fig. 1 is the described a kind of structured flowchart that can realize the system of phase array amplitude weighting of the embodiment of the invention;
Fig. 2 is concrete inner structured flowchart in the described system of Fig. 1;
Fig. 3 is the described a kind of signal power distribution schematic diagram of system when signal is launched that can realize the phase array amplitude weighting of the specific embodiment of the invention;
Fig. 4 is a kind of amplitude weighting coefficient chart that can realize the system of phase array amplitude weighting described in the specific embodiment of the invention.
Embodiment
Censure specific components as in the middle of specification and claim, having used some vocabulary.Those skilled in the art should understand, and hardware manufacturer may be called same assembly with different nouns.This specification and claims are not used as distinguishing the mode of assembly with the difference of title, but the criterion that is used as distinguishing with the difference of assembly on function.Be an open language such as " comprising " mentioned in the middle of specification and the claim in the whole text, so should be construed to " comprise but be not limited to ".Refer in acceptable error range that " roughly " those skilled in the art can solve the technical problem, and substantially reach described technique effect in the certain error scope.In addition, " couple " word and comprise any indirectly electric property coupling means that directly reach at this.Therefore, be coupled to one second device if describe a first device in the literary composition, then represent described first device and can directly be electrically coupled to described the second device, or indirectly be electrically coupled to described the second device by other devices or the means that couple.The specification subsequent descriptions is for implementing preferred embodiments of the present invention, and right described description is to illustrate that rule of the present invention is purpose, is not to limit scope of the present invention.Protection scope of the present invention is as the criterion when looking the claims person of defining.
Below in conjunction with accompanying drawing the present invention is described in further detail, but not as a limitation of the invention.
As shown in Figure 1, the described system that can realize the phase array amplitude weighting of the embodiment of the invention is applied to comprise between external circuit and the goal systems: wave beam generation module 10 and phased array antenna module 20; Wherein,
Described wave beam generation module 10, couple mutually with described external circuit and phased array antenna module 20, be used for receiving the radio-frequency current that described external circuit sends, and this radio-frequency current is carried out the adjustment of power and phase place, radio frequency signal generation is sent to described phased array antenna module 20.
In addition, described wave beam generation module 10 also is used for receiving the radiofrequency signal that described phased array antenna module 20 sends, and this radiofrequency signal is carried out the adjustment of power meter phase place, transfers to described external circuit.
In specific embodiment, described wave beam generation module 10 is connected with described external circuit by ∑/△ port, does not make restriction at this.
Described phased array antenna module 20 couples mutually with described wave beam generation module 10 and described satellite, is used for receiving the radiofrequency signal that described wave beam generation module 10 sends, and this radiofrequency signal is converted to electromagnetic wave signal is sent to described satellite.
In addition, described phased array antenna module 20 also is used for receiving the electromagnetic wave signal that described goal systems sends, and this electromagnetic wave signal is converted to radiofrequency signal is sent to described wave beam generation module 10.
In specific embodiment, described phased array antenna module 20 is comprised of at least one radiating element, and this radiating element couples mutually with wave beam generation module 10, is used for emission or receives radio wave; When transmitting, the high frequency current transitions that described radiating element will send from wave beam generation module 10 is that electromagnetic wave signal is to external radiation, when receiving signal, described radiating element is converted to high-frequency current to outside electricity taste ripple signal and sends wave beam generation module 10 to.At this foregoing is not made restriction.
Further, as shown in Figure 2, described wave beam generation module 10 comprises: do not wait power division network module 101, programmable attenuator 102, phase shifter 103, control module 104 and power supply 105; Wherein
The described power division network module 101 that do not wait, couple mutually with described external circuit, programmable attenuator 102 and power supply 105, be used for receiving described power supply 105 power supplies, and receive the power division that radio-frequency current that described external circuit sends carries out preliminary fixed proportion, generate and distribute radiofrequency signal, should distribute radiofrequency signal to be sent to described programmable attenuator 102;
In addition, the formation radio-frequency current was sent to described external circuit after the described distribution radiofrequency signal that does not wait power division network module 101 also to be used for receiving described programmable attenuator 102 feedbacks synthesize.
In specific embodiment, the described power division network module 101 that do not wait adopts unequal power division mode, when transmitted signal, do not wait 101 pairs of power division network modules tentatively to be fixed the power division of ratio and to be divided into N road signal from the radio-frequency current that ∑/the △ port sends and pass to programmable attenuator 102; When receiving signal, does not wait power division network module 101 to receive to synthesize afterwards the formation radio-frequency current from the N road radiofrequency signal that programmable attenuator 102 sends and deliver to again described external circuit and process.
Described programmable attenuator 102, couple mutually with not waiting power division network module 101, phase shifter 103, control module 104 and power supply 105, be used for receiving the power supply of described power supply 105, and receive the control signal that described control module 104 sends the described distribution radiofrequency signal that does not wait power division network module 101 to send is carried out the power trim process, generate the fine setting radiofrequency signal, should finely tune radiofrequency signal and be sent to described phase shifter 103;
In addition, described programmable attenuator 102 also carries out the power trim process for the control signal that receives described control module 104 transmissions to the signal that described phase shifter 103 feeds back, and is sent to the described power division network module 101 that do not wait.
Described phase shifter 103, couple mutually with programmable attenuator 102, control module 104, power supply 105 and phased array antenna module 20, be used for receiving the power supply of described power supply 105, and receive control signal that described control module 104 sends and the fine setting radiofrequency signal of described programmable attenuator 102 outputs is carried out the phase place adjustment process, radio frequency signal generation sends to phased array antenna module 20;
In addition, described phase shifter 103 also is used for receiving the radiofrequency signal of described phased array antenna module 20 feedbacks, and this radiofrequency signal is carried out the phase place adjustment process, and generates described fine setting radiofrequency signal and is sent to described programmable attenuator 102.
Described control module 104 couples mutually with described programmable attenuator 102 and phase shifter 103, is used for the output control signal, control 102 pairs of described programmable attenuators and carry out the power fine setting, and 103 pairs of signals of receiving of control phase shifter carries out the phase place adjustment.
Described power supply 105 couples mutually with described power division network module 101, programmable attenuator 102 and the phase shifter 103 of not waiting, and is used to described do not wait power division network module 101, programmable attenuator 102 and phase shifter 103 power supplies.
The below is a specific embodiment, and is existing in conjunction with shown in Fig. 3 and 4, and the principle of the amplitude weighting in a kind of system that can realize the phase array amplitude weighting of the present invention is done and specified.
Described wave beam generation module 10 is connected with described external circuit by ∑/△ port, particularly, as shown in Figure 3, described external circuit is connected to the described power division network module 101 that do not wait by ∑/△ port, does not wait 101 pairs of power division network modules tentatively to be fixed the power division of ratio and to be divided into N road signal from the radio-frequency current that ∑/the △ port sends and passes to programmable attenuator 102; When receiving signal, does not wait power division network module 101 to receive to synthesize afterwards the formation radio-frequency current from the N road radiofrequency signal that programmable attenuator 102 sends and deliver to again described external circuit and process.
As shown in Figure 4, be the phased array antenna amplitude weighting coefficient value chart of hypothesis, for ripple position 1 and passage 1, its amplitude weighting value is A
1+ B
11, for ripple position 2 and passage 1, its amplitude weighting value is A
1+ B
21, by that analogy, for ripple position M and passage 1, its amplitude weighting value is A
1+ B
M1, A wherein
1Be a fixed value, this value in ripple position 1,2,3 ..., all identical among the M, other passages just are A such as the amplitude weighting value of ripple position M and passage N also in like manner
N+ B
MN
Suppose that phased array antenna is in ripple position 1, amplitude is A
0Radiofrequency signal send into from the ∑ port and do not wait power division network module 101, now suppose A
0Satisfy following equality condition:
Radiofrequency signal is not through after waiting power division network module 101 to be divided into the N road so, and the 1st passage is amplitude A
1, the 2nd channel amplitude is A
2, by that analogy, the N channel amplitude is A
N Control module 104 is B according to the programed power control pad value of pre-stored ripple position 1 attenuation data values (as shown in Figure 4) control the 1st passage
11, the programed power control pad value of the 2nd passage is B
12, by that analogy, the programed power control attenuator of N passage is B
1NAt this moment never waiting the amplitude of power division network module 101 outputs is A
1The 1 tunnel radiofrequency signal, become A through its range value after the fine setting of programmable attenuator 102 power
1+ B
11, never waiting the amplitude of power division network module 101 outputs is A
2The 2 tunnel radiofrequency signal, become A through its range value after the fine setting of programmable attenuator 102 power
2+ B
12, by that analogy, never waiting the amplitude of power division network module 101 outputs is A
NN road radiofrequency signal, become A through its range value after the fine setting of programmable attenuator 102 power
N+ B
1N
Radio signal transmission after the fine setting of process power magnitude is to described phase shifter 103, owing to can compensating same signal, phase shift arrives the time difference that each different array elements produce, so through behind the phase-modulation of phase shifter 103, the output homophase of phased array antenna module 20 reaches maximum with stack.In case sense changes, do corresponding variation as long as by the phase-shift phase of adjusting phase shifter 103 maximum of antenna array wave beam is pointed to, thereby realize scanning and tracking to wave beam.
The level value of each radiating element of at this moment feed-in phased array antenna module 20 just can satisfy the amplitude weighting value requirement of Fig. 4 medium wave position 1, and its amplitude distribution that transmits as shown in Figure 3.
For the amplitude weighting of other ripple positions, according to the principle of the ripple position 1 of above-mentioned supposition also in like manner.
Simultaneously, because existing phase array receive-transmit system is reversible, the reception of phased array antenna signal and the emission of radiofrequency signal discussed above are not in like manner made concrete detailed description at this.
Compared with prior art, a kind of system that can realize the phase array amplitude weighting of the present invention has reached following effect:
1) a kind of system that can realize the phase array amplitude weighting of the present invention, use the mode that does not wait power division network and programmable attenuator to combine, can reduce significantly the phased array system minor level, thereby can reduce cost, improve phased array system war skill index, practical.
2) a kind of system that can realize the phase array amplitude weighting of the present invention, adopt and do not wait power division network to carry out the preliminary power distribution, can reduce the insertion loss of signal, thereby reduce signal to the impact of beam gain, adopt programmable attenuator to carry out the power vernier control, can realize different ripples position is applied the flexible control of different amplitude weighting coefficients.
Above-mentioned explanation illustrates and has described some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of claims of the present invention.
Claims (9)
1. the system that can realize the phase array amplitude weighting is applied between external circuit and the goal systems, and this system comprises: wave beam generation module and phased array antenna module; Wherein,
Described wave beam generation module, couple mutually with described external circuit and phased array antenna module, be used for receiving the radio-frequency current that described external circuit sends, and this radio-frequency current is carried out the adjustment of power and phase place, radio frequency signal generation is sent to described phased array antenna module;
Described phased array antenna module couples mutually with described wave beam generation module and described goal systems, is used for receiving the radiofrequency signal that described wave beam generation module sends, and this radiofrequency signal is converted to electromagnetic wave signal is sent to described goal systems.
2. the system that can realize the phase array amplitude weighting as claimed in claim 1, it is characterized in that described wave beam generation module also is used for receiving the radiofrequency signal that described phased array antenna module sends, and this radiofrequency signal carried out the adjustment of power and phase place, transfer to described external circuit.
3. such as arbitrary described system that can realize the phase array amplitude weighting in claim 1 or 2, it is characterized in that described wave beam generation module further couples mutually by ∑/△ port and described external circuit.
4. the system that can realize the phase array amplitude weighting as claimed in claim 1, it is characterized in that, described phased array antenna module also is used for receiving the electromagnetic wave signal that described goal systems sends, and this electromagnetic wave signal is converted to radiofrequency signal is sent to described wave beam generation module.
5. such as arbitrary described system that can realize the phase array amplitude weighting in claim 1 or 4, it is characterized in that described phased array antenna module further is comprised of at least one radiating element.
6. the system that can realize the phase array amplitude weighting as claimed in claim 1 is characterized in that, described wave beam generation module comprises: do not wait the power division network module, programmable attenuator, phase shifter, control module and power supply; Wherein
The described power division network module that do not wait, couple mutually with described external circuit, programmable attenuator and power supply, be used for receiving described Power supply, and receive the power division that radio-frequency current that described external circuit sends carries out preliminary fixed proportion, generate and distribute radiofrequency signal, should distribute radiofrequency signal to be sent to described programmable attenuator;
Described programmable attenuator, couple mutually with not waiting power division network module, phase shifter, control module and power supply, be used for receiving the power supply of described power supply, and receive the control signal that described control module sends the described distribution radiofrequency signal that does not wait the power division network module to send is carried out the power trim process, generate the fine setting radiofrequency signal, should finely tune radiofrequency signal and be sent to described phase shifter;
Described phase shifter, couple mutually with programmable attenuator, control module, power supply and phased array antenna module, be used for receiving the power supply of described power supply, and receive control signal that described control module sends and the fine setting radiofrequency signal of described programmable attenuator output is carried out the phase place adjustment process, radio frequency signal generation sends to the phased array antenna module;
Described control module couples mutually with described programmable attenuator and phase shifter, is used for the output control signal, control described programmable attenuator and finely tune carrying out power, and the control phase shifter carries out the phase place adjustment to the signal of receiving.
Described power supply couples mutually with described power division network module, programmable attenuator and the phase shifter of not waiting, and is used to described do not wait power division network module, programmable attenuator and phase shifter power supply.
7. the system that can realize the phase array amplitude weighting as claimed in claim 6, it is characterized in that, the described power division network module that do not wait forms radio-frequency current after also synthesizing for the distribution radiofrequency signal that receives described programmable attenuator feedback and is sent to described external circuit.
8. the system that can realize the phase array amplitude weighting as claimed in claim 6, it is characterized in that, described programmable attenuator also carries out the power trim process for the control signal that receives described control module transmission to the signal that described phase shifter feeds back, and is sent to the described power division network module that do not wait.
9. the system that can realize the phase array amplitude weighting as claimed in claim 6, it is characterized in that, described phase shifter, also be used for receiving the radiofrequency signal of described phased array antenna module feedback, and this radiofrequency signal is carried out the phase place adjustment process, generate described fine setting radiofrequency signal and be sent to described programmable attenuator.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015168887A1 (en) * | 2014-05-07 | 2015-11-12 | 华为技术有限公司 | Phased array calibration method and phased array calibration 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 |
| CN108511910A (en) * | 2018-01-19 | 2018-09-07 | 烟台大学文经学院 | A kind of narrow beam antenna and design method based on compression broad beam antenna acquisition |
| CN111164830A (en) * | 2017-10-13 | 2020-05-15 | 劲通开曼有限公司 | Cellular antenna for elevated and obstructed deployments |
| CN111969336A (en) * | 2014-05-06 | 2020-11-20 | 安波福技术有限公司 | Radar antenna assembly |
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》 * |
| 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》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969336A (en) * | 2014-05-06 | 2020-11-20 | 安波福技术有限公司 | Radar antenna assembly |
| CN111969336B (en) * | 2014-05-06 | 2023-03-28 | 安波福技术有限公司 | Radar antenna assembly |
| WO2015168887A1 (en) * | 2014-05-07 | 2015-11-12 | 华为技术有限公司 | Phased array calibration method and phased array calibration circuit |
| US10637158B2 (en) | 2014-05-07 | 2020-04-28 | Huawei Technologies Co., Ltd. | Phased array calibration method and phased array calibration 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 |
| CN111164830A (en) * | 2017-10-13 | 2020-05-15 | 劲通开曼有限公司 | Cellular antenna for elevated and obstructed deployments |
| CN111164830B (en) * | 2017-10-13 | 2021-05-11 | 劲通开曼有限公司 | Cellular antenna for elevated and obstructed deployments |
| CN108511910A (en) * | 2018-01-19 | 2018-09-07 | 烟台大学文经学院 | A kind of narrow beam antenna and design method based on compression broad beam antenna acquisition |
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| Publication number | Publication date |
|---|---|
| CN103022698B (en) | 2016-01-27 |
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