CN115412140B - Gain shaping design method suitable for power coverage of any antenna array - Google Patents
Gain shaping design method suitable for power coverage of any antenna array Download PDFInfo
- Publication number
- CN115412140B CN115412140B CN202211031717.3A CN202211031717A CN115412140B CN 115412140 B CN115412140 B CN 115412140B CN 202211031717 A CN202211031717 A CN 202211031717A CN 115412140 B CN115412140 B CN 115412140B
- Authority
- CN
- China
- Prior art keywords
- gain
- antenna array
- power coverage
- pattern
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000013461 design Methods 0.000 title claims abstract description 14
- 238000007493 shaping process Methods 0.000 title claims abstract description 13
- 238000010586 diagram Methods 0.000 claims abstract description 18
- 230000005284 excitation Effects 0.000 claims abstract description 13
- 230000010287 polarization Effects 0.000 claims abstract description 13
- 238000005457 optimization Methods 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims description 7
- 241001270131 Agaricus moelleri Species 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002939 conjugate gradient method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a gain shaping design method suitable for power coverage of any antenna array, which comprises the following steps: 1, acquiring an active unit field direction diagram and gain information of each unit in an antenna array; 2, establishing an optimization model according to the expected power coverage angle requirement, taking the feed complex excitation of the antenna array as a variable, and maximizing the minimum value of the gain in the expected polarization direction in the power coverage angle without restricting the upper boundary of the gain pattern; and 3, bringing the complex excitation solved in the step 2 into a gain expression to obtain a gain shaping directional diagram under the power coverage of the antenna array. The invention can realize power coverage in the expected polarization direction in any antenna array, does not restrict the upper boundary, ensures that the gain in the power coverage angle is as large as possible, and achieves the function of wide wave beam high-efficiency power coverage.
Description
[ field of technology ]
The invention relates to the technical field of wireless communication and beam forming, in particular to a gain forming design method suitable for power coverage of any antenna array.
[ background Art ]
The flat-top beam is a power coverage beam with spatial selectivity, and can concentrate radiation energy in a flat-top area, so that communication quality is improved. In engineering application, the flat-top beam has wide application in the fields of base station application of cellular communication, regional target detection in airport short-distance radar network, point-to-point wireless local area network communication and the like due to the radiation characteristics of flat gain and good space selectivity. However, the current comprehensive method for flat-top beam forming mainly starts from a power pattern, and the flat-top beam forming of the pattern is realized under given upper and lower boundary constraints. However, in practical power coverage communication applications, it is more important that the lower boundary of the gain be as high as possible, and that the upper boundary constraint be not emphasized, and that the power pattern shaping not necessarily maximizes the gain within the power coverage. In conclusion, the method directly starts from the gain pattern, maximizes the minimum value of the gain in the expected polarization direction in the power coverage angle, and has very strong practical significance and application value. In the prior art:
patent number CN201910672955.4 ("a wide beam transmit beam forming optimization design method") provides a wide beam transmit beam forming optimization design method. The method constrains the maximum transmitting power of each antenna, the minimum gain of the beam pattern obtained by the alternate iteration method in the required frequency and angle coverage range is higher, and the wide beam high-efficiency coverage of the transmitting signals can be realized. However, this method is applicable to only a uniform linear array or a uniform circular array, and is not applicable to any antenna array.
Patent number CN202110294197.4 ("a wide coverage beam design method aided by a smart reflector") provides a wide coverage beam design method aided by a smart reflector. The method obtains the optimal phase shift of the intelligent reflecting surface by using a Riemann manifold-based conjugate gradient method, adjusts the directional diagram of the reflecting beam by setting the phase shift of the intelligent reflecting surface, and realizes the beam scanning function and wide coverage communication. But this approach is not discussed for maximizing gain in power coverage.
[ invention ]
The invention aims to overcome the defects of the existing beamforming of power coverage, and provides a gain shaping design method suitable for power coverage of any antenna array, which can meet the requirement of power coverage in a desired polarization direction in any antenna array, has the gain as large as possible in a power coverage angle and realizes wide-beam high-efficiency power coverage.
The invention discloses a gain shaping design method suitable for power coverage of any antenna array, which comprises the following steps:
step 1: acquiring an active unit field direction diagram and gain information of each unit in an antenna array;
the active unit field direction diagram of each unit in the antenna array and the gain information obtained in step 1 are specifically: for an arbitrary antenna array of N-element, acquiring the theta component E of the active element field pattern of each element under global coordinates nθ N=1,.. nφ N=1,.. nθ N=1,..n, N and the phi component G of the gain nφ N=1,..n. There are various acquisition methods, such as: full wave simulation, cell substitution (using the pattern product theorem), rotation of the cell, microwave darkroom measurement, etc., as the case may be.
Step 2: according to the expected power coverage angle requirement, an optimization model is established, the antenna array feed complex excitation is used as a variable, the upper boundary of the gain pattern is not constrained, and the minimum value of the gain in the expected polarization direction in the power coverage angle is maximized;
in the step 2, according to the expected power coverage angle requirement, an optimization model is established, the antenna array feed complex excitation is used as a variable, the upper boundary of the gain pattern is not constrained, the minimum value of the gain in the expected polarization direction in the power coverage angle is maximized, and the specific operation is as follows: for an arbitrary antenna array of N-ary, the feed amplitude is I n N=1,..n, N, phase is α n N=1,..the excitation of N, the array antenna is polarized in the expected directionThe gain at (θ, φ) above can be expressed as the equation (1.1):
wherein, and->Is the maximum value of the gain of the nth unit in the theta and phi components, < >>And->Is the normalized field pattern of the theta and phi components.
An optimization model is built by using the formula (1.1) to feed the amplitude I= [ I ] 1 ,...,I N ] T And feed phase α= [ α ] 1 ,...,α N ] T To optimize the variables, the upper boundary of the gain pattern is not constrained, the minimum value of the gain in the desired polarization direction within the power coverage angle is maximized, and the concrete expression is given by (1.2):
step 3: and (3) bringing the complex excitation solved in the step (2) into a gain expression to obtain a beam forming directional diagram under the power coverage of the antenna array.
And 3, carrying the complex excitation solved in the step 2 into a gain expression to obtain a beam forming directional diagram under the power coverage of the antenna array, wherein the specific operation is as follows: and (3) carrying the I and alpha obtained by solving in the step (2) into a (1.1) formula to obtain the beam forming directional diagram under the power coverage of the antenna array.
And finally, a beam forming directional diagram of power coverage of any array antenna is obtained.
The invention has the advantages that:
1. the invention starts from the gain pattern directly, can realize power coverage in the expected polarization direction in any antenna array, does not restrict the upper boundary, ensures that the gain in the power coverage angle is as large as possible, and achieves the function of wide wave beam high-efficiency power coverage.
[ description of the drawings ]
Fig. 1 is a flow chart of a gain shaping design method applicable to arbitrary antenna array power coverage in accordance with the present invention;
FIG. 2 is a schematic diagram of a 32-element linear antenna array according to the present invention;
fig. 3 is a graph comparing the calculated value result of the power coverage flat-top beam pattern of the 32-element linear antenna array of the present invention with the full-wave simulation result.
[ detailed description ] of the invention
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1, the gain shaping design method suitable for power coverage of any antenna array of the present invention includes the following steps:
step 1: acquiring an active unit field direction diagram and gain information of each unit in an antenna array;
for an arbitrary antenna array of N-element, acquiring the theta component E of the active element field pattern of each element under global coordinates nθ N=1,.. nφ N=1,.. nθ N=1,..n, N and the phi component G of the gain nφ N=1,..n. There are various acquisition methods, such as: full wave simulation, cell substitution (using the pattern product theorem), rotation of the cell, implicit measurement, etc., as the case may be.
Step 2: according to the expected power coverage angle requirement, an optimization model is established, the antenna array feed complex excitation is used as a variable, the upper boundary of the gain pattern is not constrained, and the minimum value of the gain in the expected polarization direction in the power coverage angle is maximized;
setting the optimization variable as feed amplitude I= [ I ] 1 ,...,I N ] T And feed phase α= [ α ] 1 ,...,α N ] T Maximizing the desired polarization direction within the power coverage angleUpward increaseThe beneficial minimum value, specifically expressed by the formula (1.1):
step 3: and (3) bringing the complex excitation solved in the step (2) into a gain expression to obtain a beam forming directional diagram under the power coverage of the antenna array.
And (3) carrying the I and alpha obtained by solving in the step (2) into a (1.2) formula to obtain the beam forming directional diagram under the power coverage of the antenna array.
Wherein, and->Is the maximum value of the gain of the nth unit in the theta and phi components, < >>And->Is the normalized field pattern of the theta and phi components.
Finally, a beam forming directional diagram under the power coverage of the antenna array is obtained.
The gain shaping design method suitable for power coverage of any antenna array can be further verified and described through the following specific simulation examples.
Simulation example:
the linear antenna array of this example is composed of a metal floor, a dielectric base, as shown in FIG. 2The plate, the E-shaped patch unit and the metal walls on two sides of the unit. The dielectric substrate is Rogers 5880 (. Epsilon.) r =2.2), the total number of units is 32-element, and the operating frequency is 5GHz. Setting x-polarization to the desired main polarization, and setting the power coverage angle to be [ -12 DEG, 12 DEG]。
As shown in fig. 3. The minimum value of the gain in the power coverage area of the method is 12.20dB, the calculated numerical result is completely matched with the HFSS full-wave simulation result, and the wide-beam high-efficiency power coverage is realized.
Finally, it should be pointed out that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting. Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. The gain shaping design method suitable for power coverage of any antenna array is characterized by comprising the following steps:
step 1: acquiring an active unit field direction diagram and gain information of each unit in an antenna array; the method comprises the following steps:
for an arbitrary antenna array of N-element, acquiring the theta component E of the active element field pattern of each element under global coordinates nθ N=1,.. nφ N=1,.. nθ N=1,..n, N and the phi component G of the gain nφ ,n＝1,...,N；
The acquisition method comprises full-wave simulation, pattern product theorem, rotation of units or microwave darkroom test;
step 2: according to the expected power coverage angle requirement, an optimization model is established, the antenna array feed complex excitation is used as a variable, the upper boundary of the gain pattern is not constrained, and the minimum value of the gain in the expected polarization direction in the power coverage angle is maximized; the method comprises the following steps:
for an arbitrary antenna array of N-ary, the feed amplitude is I n N=1,..n, N, phase is α n N=1,..the excitation of N, the array antenna is polarized in the expected directionThe gain at (θ, φ) above can be expressed as the equation (1.1):
wherein, and->Is the maximum value of the gain of the nth unit in the theta and phi components, < >>And->Is a normalized field pattern of the θ component and the φ component;
an optimization model is built by using the formula (1.1) to feed the amplitude I= [ I ] 1 ,...,I N ] T And feed phase α= [ α ] 1 ,...,α N ] T To optimize the variables, the upper boundary of the gain pattern is not constrained, the minimum value of the gain in the desired polarization direction within the power coverage angle is maximized, and the concrete expression is given by (1.2):
step 3: and (3) bringing the complex excitation solved in the step (2) into a gain expression to obtain a beam forming directional diagram under the power coverage of the antenna array.
2. The method for designing gain shaping applicable to power coverage of any antenna array according to claim 1, wherein the step 3 brings the complex excitation solved in the step 2 into a gain expression to obtain a beam shaping directional diagram under the power coverage of the antenna array, which can be expressed as:
and (3) carrying the I and alpha obtained by solving in the step (2) into a (1.1) formula to obtain the beam forming directional diagram under the power coverage of the antenna array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031717.3A CN115412140B (en) | 2022-08-26 | 2022-08-26 | Gain shaping design method suitable for power coverage of any antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031717.3A CN115412140B (en) | 2022-08-26 | 2022-08-26 | Gain shaping design method suitable for power coverage of any antenna array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115412140A CN115412140A (en) | 2022-11-29 |
| CN115412140B true CN115412140B (en) | 2024-01-12 |
Family
ID=84162585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211031717.3A Active CN115412140B (en) | 2022-08-26 | 2022-08-26 | Gain shaping design method suitable for power coverage of any antenna array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115412140B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116542074B (en) * | 2023-06-13 | 2023-12-19 | 西安电子科技大学 | Robust design method for feed excitation of microwave energy transmission antenna system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005053185A1 (en) * | 2003-11-28 | 2005-06-09 | Huawei Technologies Co., Ltd. | Method and device for array antenna omnidirectional overlay |
| CN109768378A (en) * | 2019-03-18 | 2019-05-17 | 广东通宇通讯股份有限公司 | Wide band high-gain Dual polarization Yagi-Uda antenna |
| CN113131225A (en) * | 2021-04-16 | 2021-07-16 | 电子科技大学 | Irregular antenna array optimization method based on subarray factor gain maximization |
| WO2022117204A1 (en) * | 2020-12-04 | 2022-06-09 | Huawei Technologies Co., Ltd. | Multi-antenna wireless transmitter and method with transmission power control |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102087793B1 (en) * | 2013-07-05 | 2020-04-14 | 한국전자통신연구원 | Multibeam antenna system and method for controlling output power thereof |
| EP3213371B1 (en) * | 2014-10-28 | 2020-07-22 | Fraunhofer Gesellschaft zur Förderung der Angewand | Antenna apparatus supporting adjustability of an antenna beam direction |
-
2022
- 2022-08-26 CN CN202211031717.3A patent/CN115412140B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005053185A1 (en) * | 2003-11-28 | 2005-06-09 | Huawei Technologies Co., Ltd. | Method and device for array antenna omnidirectional overlay |
| CN109768378A (en) * | 2019-03-18 | 2019-05-17 | 广东通宇通讯股份有限公司 | Wide band high-gain Dual polarization Yagi-Uda antenna |
| WO2022117204A1 (en) * | 2020-12-04 | 2022-06-09 | Huawei Technologies Co., Ltd. | Multi-antenna wireless transmitter and method with transmission power control |
| CN113131225A (en) * | 2021-04-16 | 2021-07-16 | 电子科技大学 | Irregular antenna array optimization method based on subarray factor gain maximization |
Non-Patent Citations (2)
| Title |
|---|
| 交叉极化及副瓣约束的任意阵列最优方向性综合;刘颜回等;《电子学报》;第3卷(第45期);712-718 * |
| 杨晶 ; 刘颜回 ; 白晶晶 ; 柳清伙 ; 聂在平.交叉极化及副瓣约束的任意阵列最优方向性综合.《电子学报》.2017,45(3),第712-718页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115412140A (en) | 2022-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106450789B (en) | A kind of low section lens antenna based on reflective array feed | |
| CN108429015B (en) | Super-surface concave reflector capable of simultaneously regulating polarization state and beam direction | |
| CN115412140B (en) | Gain shaping design method suitable for power coverage of any antenna array | |
| Ma et al. | Low-cost wideband microstrip arrays with high aperture efficiency | |
| Ahmed et al. | Comparison of grid array and microstrip patch array antennas at 28 GHz | |
| CN109449609A (en) | A kind of bimodulus arc array antenna of dipoles applied to indoor base station | |
| Yan et al. | Planar series-fed antenna array for 77 GHz automotive radar | |
| CN113300113A (en) | Broadband dual-polarization multi-beam orbital angular momentum antenna and communication equipment | |
| JP2020520185A (en) | Broadband antenna | |
| Wang et al. | A wireless power transmitter with uniform power transfer coverage | |
| Yu et al. | Quad-polarization reconfigurable reflectarray with independent beam scanning and polarization switching capabilities | |
| CN215266685U (en) | Broadband dual-polarization multi-beam orbital angular momentum antenna and communication equipment | |
| CN107039781B (en) | Novel mode conversion antenna based on planar structure | |
| CN209001148U (en) | A kind of bimodulus arc array antenna of dipoles applied to indoor base station | |
| CN108550992B (en) | Super-surface convex reflector capable of simultaneously regulating polarization state and beam direction | |
| Zheng et al. | A broadband multimode antenna with enhanced gain and high efficiency by employing metasurface for wlan and car-to-car application | |
| EP4068504A2 (en) | Antenna apparatus and method | |
| CN115693173A (en) | Multiple MIMO narrow-beam and high-gain base station antenna | |
| CN109742555A (en) | A kind of space lens scan antenna and its beam sweeping method based on ELLIPTIC REVOLUTION paraboloid phase distribution | |
| CN111430932B (en) | Polarization torsion active angle reflection direction backtracking system | |
| Zhou et al. | Efficient optimization and realization of a shaped-beam planar array for very large array application | |
| CN211376942U (en) | Grid type waveguide antenna array of mobile communication base station | |
| Wu et al. | A compact high-isolation wideband three-sector linear array | |
| CN113097745A (en) | Wide-beam parasitic pixel layer antenna for one-dimensional large-angle scanning | |
| Martinez-de-Rioja et al. | Dual-Band Electromagnetic Skin with Independent Reflection Performance at 28 and 39 GHz for 5G Millimeter-Wave Communications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |