CN105226362A - Series feed structure power splitter, array antenna system and method for designing thereof - Google Patents
Series feed structure power splitter, array antenna system and method for designing thereof Download PDFInfo
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Abstract
The invention discloses a kind of series feed structure power splitter, comprise an input port and multiple output port, this power splitter adopts series feed structure, described input port is positioned at middle, described multiple output down distributes power by fixed proportion step by step to both sides from the first order of middle, the range value of described multiple output port is fixed value, and this range value meets cosecant transmission distance antenna amplitude distribution feature.The series feed power splitter of fixed amplitude of the present invention, without the need to adjusting range value again, greatly reduces with regard to the time making the design of power splitter complete, significantly improves design efficiency.
Description
Technical field
The present invention relates to a kind of communication wire technical field, particularly relate to a kind of series feed structure power splitter, array antenna system and method for designing thereof.
Background technology
In the design of modern passive array antenna, power splitter and antenna are all absolutely necessary element, are called array antenna system when both work together.
Power splitter full name power divider, is a kind ofly a road input signal energy is divided into two-way or multiple-channel output is equal or the device of unequal energy, also conversely multiple signals energy can be synthesized a road and export, now can also referred to as mixer.Certain isolation should be ensured between the output port of a power splitter.The important technological parameters of power splitter comprises: isolation, power capacity and frequency bandwidth etc. between the voltage standing wave ratio of power loss (comprise insertion loss, distribute loss and reflection loss), each port, power division port.In array antenna design, power splitter be in order to meet dock with antenna in amplitude needed for antenna and phase place.
In the design of traditional array antenna system, first array of designs antenna part often, then the data of the element pattern of array antenna are brought in algorithm and carry out calculating thus draw one group and the immediate phase and magnitude value of target direction figure, then utilize this group design data power splitter.After power splitter is provided with, then docks with antenna and verify, complete design.If traditional power splitter, it is very numerous and diverse for designing and organizing the same model exported of data with this, should adjust some state modulator amplitudes in power splitter model, also will adjust other state modulator phase places.Design the time that a power splitter probably needs 1-2 week in such a manner, make the design process of power splitter become numerous and diverse and poor efficiency.
The design cycle of traditional array antenna system, comprise: in the existing Array Antenna Synthesis model of design, general first array of designs antenna, inputs in genetic algorithm by the directional diagram of array element, calculates the phase and magnitude close to target direction figure needed for antenna.According to the power splitter of these two groups of design data traditional structures, then power splitter docks with array antenna after having designed, last test result, complete design.
The power splitter design process of traditional structure is very loaded down with trivial details, namely wants adjusting range, also will adjust phase place.Amplitude or the phase place of a usual adjustment port all require a great deal of time.Whole design process probably needs the time spending 1-2 week, has a strong impact on the time schedule of whole power splitter design cycle.Meanwhile, genetic algorithm needs to calculate the disaggregation than many one times of array element quantity in array, i.e. phase and magnitude in the calculation, and genetic algorithm has randomness, computer can be allowed like this to spend the more time to find disaggregation, affect the time schedule of whole design cycle.
Summary of the invention
For solving the problems of the technologies described above, the present invention provide firstly a kind of series feed structure power splitter, comprise: an input port and multiple output port, this power splitter adopts series feed structure, described input port is positioned at middle, described multiple output down distributes power by fixed proportion step by step to both sides from the first order of middle, and the range value of described multiple output port is fixed value, and this range value meets cosecant transmission distance antenna amplitude distribution feature.
Preferably, the spacing of described output port adopts the half-wavelength of 9GHz, and it is 1.1 millimeters that each port exports microstrip line wide.
Preferably, the number of described output port is 16, when input range is 1, the range value of 16 output ports is respectively 0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415 and 0.0397.
Preferably, described multiple output, from the first order of middle, distributes power output by 1 to 1 fixed proportion to both sides step by step, and the power output of output port is the half of the power output of adjacent prime output port successively.
Present invention also offers a kind of array antenna system, comprise: series feed power splitter and array antenna, described series feed structure power splitter comprises an input port and multiple output port, described input port is positioned at middle, the element antenna of described multiple output and array antenna is interconnected, described multiple output down distributes power by fixed proportion step by step from middle to both sides, the range value of described multiple output port is fixed value, and this range value meets cosecant transmission distance antenna amplitude distribution feature.
Preferably, the spacing of described output port adopts the half-wavelength of 9GHz, and it is 1.1 millimeters that each port exports microstrip line wide; The number of described output port is 16, when input range is 1, the range value of 16 output ports is respectively 0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415 and 0.0397; Described multiple output, from the first order of middle, distributes power output by 1 to 1 fixed proportion to both sides step by step, and the power output of output port is the half of the power output of adjacent prime output port successively.
Present invention also offers a kind of method that application rights requires the series feed power splitter array of designs antenna system described in 1, comprising: array of designs antenna, determine the directional diagram of array element; For the output port of series feed structure power splitter distributes fixing range value, calculate the phase place needed for target direction figure according to described range value; Dock with described array antenna after the output phase place of described series feed structure power splitter has adjusted and test, obtaining test result.
Preferably, described series feed structure power splitter comprises an input port and multiple output port, described input port is positioned at middle, the element antenna of described multiple output port and array antenna is interconnected, described multiple output port step by step distributes power from middle to both sides by fixed proportion, and described range value meets cosecant transmission distance antenna amplitude distribution feature.
Preferably, the number of described output port is 16, when input range is 1, the range value of 16 output ports is respectively 0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415 and 0.0397; The spacing of described output port adopts the half-wavelength of 9GHz, and it is 1.1 millimeters that each port exports microstrip line wide.
Preferably, described multiple output, from the first order of middle, distributes power output by 1 to 1 fixed proportion to both sides step by step, and the power output of output port is the half of the power output of adjacent prime output port successively.
Compared with prior art, the output amplitude of the series feed power splitter port of fixed amplitude of the present invention is determined, when amplitude is determined, phase place can adjust arbitrarily desired phase value according to the variable set.Technical scheme of the present invention is because without the need to adjusting range value again, greatly reduce with regard to the time making the design of power splitter complete, and only needing 1-2 hour just can complete design, significantly improves design efficiency.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing technical scheme of the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification, claims and accompanying drawing and/or flow process and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical scheme of the present invention or prior art, and forms a part for specification.Wherein, express the accompanying drawing of the embodiment of the present invention together with embodiments of the present invention for explaining technical scheme of the present invention, but do not form the restriction to technical solution of the present invention.
Fig. 1 is the series feed power divider structure schematic diagram of the fixed amplitude of the embodiment of the present invention;
Fig. 2 is the Antenna Design schematic flow sheet in the embodiment of the present invention;
Fig. 3 is the front schematic view of the printed dipole antenna array in the embodiment of the present invention;
Fig. 4 is the reverse side schematic diagram of the printed dipole antenna array in the embodiment of the present invention;
Fig. 5 is the structural representation of the reflecting plate in the embodiment of the present invention;
Fig. 6 is array antenna in the embodiment of the present invention and power splitter collective model front schematic view;
Fig. 7 is array antenna in the embodiment of the present invention and power splitter collective model reverse side schematic diagram;
Fig. 8 is the final result comparison diagram that power splitter in the embodiment of the present invention and Array Antenna Synthesis modeling emulate.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching relevant art effect can fully understand and implement according to this.Each feature in the embodiment of the present invention and embodiment, can be combined with each other under prerequisite of not conflicting mutually, the technical scheme formed is all within protection scope of the present invention.
In addition, the step that the method for the embodiment of the present invention shown by accompanying drawing comprises, can perform in the computer system of such as one group of computer executable instructions.Further, although the method for the embodiment of the present invention has embodied the certain logical order of technical scheme of the present invention when performing in shown flow chart, typically, this logical order has been only limitted to by the embodiment shown by this flow chart.In other embodiments of the present invention, the logical order of technical scheme of the present invention also can be different from mode shown in the drawings to realize.
The present invention is based on the power splitter of traditional structure, propose a kind of series feed power splitter of fixed amplitude.The output amplitude of the series feed power splitter port of this fixed amplitude is determined, when amplitude is determined, phase place can adjust arbitrarily desired phase value according to the variable set.Because without the need to adjusting range value again, greatly reduce with regard to the time making the design of power splitter complete, only needing 1-2 hour just can complete design.
As shown in Figure 1, a kind of series feed structure power splitter of fixed amplitude, comprise an input port and multiple output port, this power splitter adopts series feed structure, described input port is positioned at middle, described multiple output down distributes power by fixed proportion step by step to both sides from the first order of middle, and the range value of described multiple output port is fixed value, and the range value that this group is fixed meets cosecant transmission distance antenna amplitude distribution feature.Particularly, this power splitter also can called after fixed amplitude only phase control half-power to successively decrease series feed structure Gysel power splitter.Further, the spacing of described output port adopts the half-wavelength of 9Ghz, i.e. 16.7mm, and it is 1.1mm that each port exports microstrip line wide.The rear portion of power splitter adopts monoblock copper coin as earth terminal.The number of described output port is identical with the number of array element.
When array antenna system designs, only need find out the linear scale exporting d (x) parameter length in phase place and Fig. 1, proportionally regulate d1, d2, d3 ... d15, d16 variable size can realize the output phase place adjusting power splitter output port.This series feed structure can allow the design of power splitter become succinctly, efficient.
Such as, the novel series feed structure power splitter of this fixed amplitude has 1 input port and 16 output ports, and wherein the spacing of 16 output ports adopts the half-wavelength of 9Ghz, i.e. 16.7mm, and it is 1.1mm that each port exports microstrip line wide.The dielectric-slab that this power splitter adopts is Rogers 4330, and dielectric constant is 3.5, and thickness is 0.508mm.The rear portion of power splitter adopts monoblock copper coin as earth terminal.Described multiple output distributes power by fixed proportion and distributes power output to both sides from the first order of middle, be that employing 1 to 1 power stage down distributes power step by step, the power output of output port is the half of adjacent prime output port power output successively.When input range is 1,16 groups of output amplitudes are respectively [0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415,0.0397].Empirical tests, this amplitude branch meets cosecant transmission distance antenna amplitude distribution feature, can realize perfect cosecant square figuration under genetic algorithm helps.
The amplitude of being fixed by power splitter in genetic algorithm computational process, as datum, only need calculate desired phase, can save compared to traditional method for designing the time that algorithm over half finds disaggregation.
Based on the series feed structure power splitter of the fixed amplitude shown in Fig. 1, as shown in Figure 2, the present invention proposes a kind of efficiently succinct array antenna system design cycle, comprising:
Step S210, array of designs antenna.
Step S220, extracts the directional diagram of array element, and substitutes in genetic algorithm from array antenna.
Step S230, using the fixing range value of the output port of series feed structure power splitter as datum, substitute in genetic algorithm, application genetic algorithm calculates the phase place needed for target direction figure.
Step S240, the phase place needed for target direction figure adjusts the output phase place of series feed structure power splitter.
Step S250, after the output phase place of series feed structure power splitter has adjusted, has docked series feed structure power splitter with array antenna and has tested, and obtains test result.
Particularly, series feed structure power splitter, comprise an input port and multiple output port, this power splitter adopts series feed structure, described input port is positioned at middle, described multiple output down distributes power by fixed proportion step by step to both sides from the first order of middle, and the range value of described multiple output port is fixed value, and the range value that this group is fixed meets cosecant transmission distance antenna amplitude distribution feature.Described multiple output distributes power by fixed proportion and distributes power output to both sides from the first order of middle, be that employing 1 to 1 power stage down distributes power step by step, the power output of output port is the half of adjacent prime output port power output successively.When input range is 1,16 groups of output amplitudes are respectively [0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415,0.0397].
In above-mentioned flow process, the amplitude of power splitter does not need to regulate, and the output phase place that only need adjust power splitter according to the phase value calculated can complete the design of power splitter.In the series feed power splitter design process of above-mentioned fixed amplitude, because the amplitude of being fixed by power splitter in genetic algorithm computational process is as datum, only need calculate desired phase, can save compared to traditional method for designing the time that algorithm over half finds disaggregation.
Application example
A selected cosecant square expansion wave beam is target direction figure, designs the collective model of a X-band linear polarization printed dipole 16 element antenna array and power splitter.The specific targets of array aerial direction figure are :-3dB width range is 0 °-12 °, and-10dB beamwidth is 65 °, and wave cover is 65 °, and frequency band range is 8.5GHz ~ 9.6GHz, and centre frequency is 9.05GHz.
As shown in Figure 2, array antenna system design cycle, comprising:
First, array of designs antenna part;
As shown in Figure 3, the reverse side of printed dipole 16 element antenna as shown in Figure 4 in printed dipole 16 element antenna front.As shown in Figure 5, reflecting plate is added in black line part in the middle of antenna medium plate (as Fig. 3, Fig. 4) to the structure of reflecting plate.The dielectric-slab adopted is Rogers 4350, and dielectric constant is 3.5, and thickness is 0.508mm.The half-wavelength 16.7mm being spaced apart 9Ghz of each unit.The directional diagram of these 16 array elements is extracted and brings in genetic algorithm.
Then, the series feed structure power splitter of fixed amplitude is designed;
Determine the fixing output amplitude of series feed power splitter as shown in Figure 1,16 groups of amplitudes are respectively [0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415,0.0397].This group amplitude is brought into as datum in genetic algorithm, calculates and expand the immediate one group of phase value of wave beam with target cosecant square.Find out d (x) parameter and the linear scale exporting phase place in power splitter model, namely find the quantized values of the d (x) corresponding with exporting phase place, quantitative later d (x) parameter is brought in power splitter model, output amplitude and the numerical value of phase place needed for transmission distance antenna can be obtained, complete the design of power splitter.
Then, power splitter is docked with array antenna.Power splitter and Array Antenna Synthesis model positive and negative are respectively as shown in Fig. 7, Fig. 8.
Finally, power splitter and Array Antenna Synthesis model are tested, and checks final result.
As shown in Figure 8, A line is the cosecant-squared pattern of the excitation figuration one-tenth that genetic algorithm calculates to final result, and B line is the cosecant-squared pattern that after the phase place of the excitation adjustment output port that power splitter calculates according to genetic algorithm, figuration becomes.
Application the present invention, when array antenna is determined, the design time of the series feed power splitter of fixed amplitude only needs 1-2 hour, and traditional power splitter design time needs 1-2 week.The time calculating antenna Output rusults in genetic algorithm also shortens about half.The overall time that antenna and power splitter design also shortens greatly.Technical scheme of the present invention has not only saved the cost of time, and makes the design process of whole antenna system become simple, efficiently.
Those skilled in the art should be understood that, each part of the device that the above-mentioned embodiment of the present invention provides and/or system, and each step in method, they can concentrate on single calculation element, or are distributed on network that multiple calculation element forms.Alternatively, they can realize with the executable program code of calculation element.Thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Although the execution mode disclosed by the present invention is as above, the execution mode that described content only adopts for ease of understanding technical solution of the present invention, and be not used to limit the present invention.Those of skill in the art belonging to any the present invention; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be carried out in the form implemented and details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (10)
1. a series feed structure power splitter, is characterized in that, comprising: an input port and multiple output port,
This power splitter adopts series feed structure, described input port is positioned at middle, described multiple output down distributes power by fixed proportion step by step to both sides from the first order of middle, the range value of described multiple output port is fixed value, and this range value meets cosecant transmission distance antenna amplitude distribution feature.
2. series feed structure power splitter as claimed in claim 1, is characterized in that,
The spacing of described output port adopts the half-wavelength of 9GHz, and it is 1.1 millimeters that each port exports microstrip line wide.
3. series feed structure power splitter as claimed in claim 1 or 2, is characterized in that,
The number of described output port is 16, when input range is 1, the range value of 16 output ports is respectively 0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415 and 0.0397.
4. series feed structure power splitter as claimed in claim 1, is characterized in that,
Described multiple output, from the first order of middle, distributes power output by 1 to 1 fixed proportion to both sides step by step, and the power output of output port is the half of the power output of adjacent prime output port successively.
5. an array antenna system, it is characterized in that, comprise: series feed power splitter and array antenna, described series feed structure power splitter comprises an input port and multiple output port, described input port is positioned at middle, the element antenna of described multiple output and array antenna is interconnected, described multiple output down distributes power by fixed proportion step by step from middle to both sides, the range value of described multiple output port is fixed value, and this range value meets cosecant transmission distance antenna amplitude distribution feature.
6. a kind of array antenna system as claimed in claim 5, is characterized in that,
The spacing of described output port adopts the half-wavelength of 9GHz, and it is 1.1 millimeters that each port exports microstrip line wide;
The number of described output port is 16, when input range is 1, the range value of 16 output ports is respectively 0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415 and 0.0397;
Described multiple output, from the first order of middle, distributes power output by 1 to 1 fixed proportion to both sides step by step, and the power output of output port is the half of the power output of adjacent prime output port successively.
7. a method for designing for array antenna system, application rights requires the series feed power splitter array of designs antenna system described in 1, and it is characterized in that, the method comprises:
Array of designs antenna, determines the directional diagram of array element;
For the output port of series feed structure power splitter distributes fixing range value, calculate the phase place needed for target direction figure according to described range value;
Dock with described array antenna after the output phase place of described series feed structure power splitter has adjusted and test, obtaining test result.
8. method as claimed in claim 7, is characterized in that,
Described series feed structure power splitter comprises an input port and multiple output port, described input port is positioned at middle, the element antenna of described multiple output port and array antenna is interconnected, described multiple output port step by step distributes power from middle to both sides by fixed proportion, and described range value meets cosecant transmission distance antenna amplitude distribution feature.
9. method as claimed in claim 7 or 8, is characterized in that,
The number of described output port is 16, when input range is 1, the range value of 16 output ports is respectively 0.0407,0.0424,0.064,0.095,0.141,0.21,0.31,0.458,0.463,0.31,0.21,0.14,0.094,0.063,0.0415 and 0.0397;
The spacing of described output port adopts the half-wavelength of 9GHz, and it is 1.1 millimeters that each port exports microstrip line wide.
10. method as claimed in claim 8, is characterized in that,
Described multiple output, from the first order of middle, distributes power output by 1 to 1 fixed proportion to both sides step by step, and the power output of output port is the half of the power output of adjacent prime output port successively.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534923A (en) * | 2019-09-03 | 2019-12-03 | 东南大学 | A kind of beam-shaped antenna structure and design method |
| WO2023000957A1 (en) * | 2021-07-23 | 2023-01-26 | 深圳市塞防科技有限公司 | Antenna array, system, and millimeter wave radar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140546A1 (en) * | 2003-12-27 | 2005-06-30 | Hyeong-Geun Park | Transmitting and receiving apparatus and method in adaptive array antenna system capable of real-time error calibration |
| CN102856651A (en) * | 2012-09-28 | 2013-01-02 | 重庆绿色智能技术研究院 | Millimeter wave cylindrical surface conformal substrate integrated waveguide slot array antenna |
| EP2908381A1 (en) * | 2013-04-15 | 2015-08-19 | China Telecom Corporation Limited | Multi-antenna array of long term evolution multi-input multi-output communication system |
| CN205159482U (en) * | 2015-10-12 | 2016-04-13 | 北京邮电大学 | Ware, array antenna system are divided to series feed structure merit and design device thereof |
-
2015
- 2015-10-12 CN CN201510659376.8A patent/CN105226362B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140546A1 (en) * | 2003-12-27 | 2005-06-30 | Hyeong-Geun Park | Transmitting and receiving apparatus and method in adaptive array antenna system capable of real-time error calibration |
| CN102856651A (en) * | 2012-09-28 | 2013-01-02 | 重庆绿色智能技术研究院 | Millimeter wave cylindrical surface conformal substrate integrated waveguide slot array antenna |
| EP2908381A1 (en) * | 2013-04-15 | 2015-08-19 | China Telecom Corporation Limited | Multi-antenna array of long term evolution multi-input multi-output communication system |
| CN205159482U (en) * | 2015-10-12 | 2016-04-13 | 北京邮电大学 | Ware, array antenna system are divided to series feed structure merit and design device thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张运启: "余割平方赋形波束阵列天线的研究", 《中国优秀硕士学位论文全文数据库》 * |
| 杨涛: "阵列天线及高功率馈电网络的设计", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534923A (en) * | 2019-09-03 | 2019-12-03 | 东南大学 | A kind of beam-shaped antenna structure and design method |
| CN110534923B (en) * | 2019-09-03 | 2024-03-01 | 东南大学 | Beam forming antenna structure and design method |
| WO2023000957A1 (en) * | 2021-07-23 | 2023-01-26 | 深圳市塞防科技有限公司 | Antenna array, system, and millimeter wave radar |
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