CN117792457B - Intelligent reflection surface adjustable reflection gain method based on hybrid unit subarray - Google Patents
Intelligent reflection surface adjustable reflection gain method based on hybrid unit subarray Download PDFInfo
- Publication number
- CN117792457B CN117792457B CN202311503144.4A CN202311503144A CN117792457B CN 117792457 B CN117792457 B CN 117792457B CN 202311503144 A CN202311503144 A CN 202311503144A CN 117792457 B CN117792457 B CN 117792457B
- Authority
- CN
- China
- Prior art keywords
- reflection
- unit
- active
- intelligent
- reflecting
- 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 25
- 230000001965 increasing effect Effects 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 238000005562 fading Methods 0.000 abstract description 6
- 238000011160 research Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- 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
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses an intelligent reflection surface adjustable reflection gain method based on a hybrid unit subarray, which relates to the technical field of electronic information, wherein the intelligent reflection surface comprises a dual-polarized intelligent reflection surface formed by a passive reflection unit and an active reflection unit; the method comprises the following steps: s1: the intelligent reflecting surface of the mixing unit receives signals sent by the transmitting end; s2: judging according to the intensity and the distance of the signal required by the receiving end, and adaptively starting the number of active reflection units required by the corresponding intensity or distance; s3: acquiring signal power received when the active reflecting unit is not started by the mixed intelligent reflecting surface; s4: according to the received signal power, the subunit array makes a judgment that the main ratio of the active reflecting unit to the passive reflecting unit is 1:8,2:7 and 3: 6. The method solves the problem of multiplicative fading of the reflected signal caused by double-path loss of the reflected signal of the traditional intelligent reflecting surface.
Description
Technical Field
The invention relates to the technical field of electronic information, in particular to an intelligent reflection surface adjustable reflection gain method based on a hybrid unit subarray.
Background
With the rapid development of the information age, the mobile communication network has gradually advanced the research on the 6G technology from the 5G age. The intelligent reflecting surface is clearly pointed out in white paper of the 6G general landscape and potential key technology published by the China communication institute propulsion group, and is one of important technologies for realizing a 6G network. Many scholars have put into research at home and abroad for exploring the intelligent reflecting surface, and the intelligent reflecting surface will occupy a very important position in the future 6G technology realization from the theoretical and practical description. In the research of intelligent reflecting surfaces, the research of passive reflecting units as main constituent units, it is found that the reflecting surfaces are formed by the passive reflecting units only, so that the phenomenon of 'multiplicative fading' of reflecting signals is caused.
The multiplicative fading effect results from the two paths of the Base Station (BS) to the smart Reflector (RIS) and the smart reflector to the User Equipment (UE), and the product of these two path lengths is proportional to the attenuation. Therefore, the intelligent reflecting surface formed by the passive reflecting units is difficult to meet the requirement of increasing and growing the coverage range of the reflected signals, and the active reflecting units become the current research hot spot because the active reflecting units can effectively increase the intensity of the reflected signals. And no good unified standard exists for the use and deployment of the active reflection units, and most of the active reflection units are randomly distributed or can not be selected to be turned on or turned off according to the signal intensity.
Disclosure of Invention
The invention aims to provide an intelligent reflection surface adjustable reflection gain method based on a hybrid unit subarray, which solves the problems of reflection signal multiplicative fading caused by a reflection surface consisting of passive reflection units and how an active reflection unit and a passive reflection unit are distributed at present, and simultaneously solves the problems of complex control circuits and hardware cost caused by the fact that all the active units are replaced by the dynamic switching method.
In order to achieve the above purpose, the invention provides an intelligent reflection surface adjustable reflection gain method based on a hybrid unit subarray, wherein the intelligent reflection surface comprises a dual-polarized intelligent reflection surface formed by a passive reflection unit and an active reflection unit; the method specifically comprises the following steps:
S1: the intelligent reflecting surface of the mixing unit receives signals sent by a transmitting end, the signals of the transmitting end come from a base station, a user is a final receiving end, and the user randomly moves and receives signals transmitted or reflected by different base stations or intelligent reflecting surfaces of the mixing unit;
s2: judging according to the intensity and the distance of the signal required by the receiving end, and adaptively starting the number of active reflection units required by the corresponding intensity or distance;
s3: acquiring signal power received when the intelligent reflecting surface of the mixing unit does not start the active reflecting unit;
S4: according to the received signal power, the subunit array makes a judgment that a certain number of active reflecting units are started or not started, and the main ratio of the active reflecting units to the passive reflecting units is 1:8,2:7 and 3: 6.
Preferably, each reflecting unit has a size of 2cm×2cm, nine reflecting units form a3×3 reflecting surface sub-array, the active reflecting units are arranged symmetrically in an x-axis or y-axis, the remaining four positions are passive reflecting units, and each sub-unit is composed of 5 active reflecting units and 4 passive reflecting units at most.
Preferably, in step S2, the reflection coefficient Γ is set as follows:
Wherein Z L and Z A represent load and antenna impedance, respectively;
the passive intelligent reflecting surface utilizes a passive load, and the corresponding reflection coefficient |Γ| 2 is less than or equal to 1, so that the reflection coefficient of the passive reflecting surface is less than 1, and path loss occurs;
A tunnel diode is added into the passive reflection unit, and according to the negative input resistance characteristic of the tunnel diode, the reflection coefficient |Γ| 2 is more than or equal to 1, and the specific formula of the impedance of the tunnel diode is as follows:
ZL＝-RL+jXL,RL>1
Wherein R L and X L represent resistance and reactance, respectively, and the formula of the reflection coefficient of the active reflection unit according to the above formula is specifically expressed as:
Wherein R A and X A respectively represent resistance and reactance, when the signal intensity needs to be increased according to the formula, setting a reflection coefficient |Γ| 2 to be more than or equal to 1, starting an active reflection unit, and obtaining the proportion of starting the active reflection unit according to the intensity required by a user;
the distance from the base station to the center of the intelligent reflecting surface of the mixing unit is d 1, the distance from the center of the intelligent reflecting surface of the mixing unit to the user is d 2, and the corresponding path loss is obtained according to the path loss formula, wherein the specific expression is as follows:
Wherein G t denotes the gain of the transmitting antenna, G r denotes the gain of the receiving antenna, Γ denotes the reflection gain of a single cell, M denotes the number of columns of cells, N denotes the number of rows of reflecting surface cells, d x denotes the width of a cell, d y denotes the length of a cell, a denotes the amplitude, λ denotes the wavelength, F (θ, Φ) is the normalized power radiation pattern of a cell, and the dependence of the incident/reflected power density of a cell on the incident/reflected angle is revealed, where θ denotes the elevation angle, Φ denotes the azimuth angle, and F (θ, Φ) has the following specific expression:
From the two formulas of PL and F (θ, Φ), the corresponding path loss is calculated, which results in a multiple increase in path loss when the signal is reflected only by the passive smart reflective surface.
Preferably, in step S3, the signal is transmitted from the base station to the intelligent reflection surface of the mixing unit, and the intelligent reflection surface of the mixing unit calculates the power of the signal received when the active reflection unit is not turned on by the user according to the distance from the reflection surface to the user, and sets the power of the signal transmitted by the base station as P t, and the variables involved in step S2 calculate the power of the signal P r received when the active reflection unit is not turned on by the user, where the specific formula is expressed as:
according to the formula, the power of the signal received when the user does not turn on the active reflection unit is calculated.
Preferably, in step S4, the intelligent reflection surface of the hybrid unit is composed of active reflection units and passive reflection units, the unit geometry is symmetrical about the X-axis and Y-axis, the unit period and the size are designed according to the designated working center frequency, each 3×3 is a subarray, in a single subarray, the active reflection units are deployed in a "symmetrical" form, when the intelligent reflection surface of the hybrid unit obtains the result of step S3, the subarray makes a judgment to turn on or not turn on a certain number of active reflection units, and the main quilt proportion of the active reflection units and the passive reflection units becomes 1:8,2:7 and 3: 6.
Therefore, the intelligent reflection surface adjustable reflection gain method based on the hybrid unit subarray has the following beneficial effects:
(1) The invention solves the problem of 'multiplicative fading' caused by double-path loss of the traditional intelligent reflecting surface reflection signal, and can selectively control the combination of the active unit and the passive unit.
(2) According to the invention, through the proportion regulation and control of the active reflection unit and the passive reflection unit, the communication scene of purposefully amplifying the target signal is realized.
(3) The invention designs the limitation of the active units, only three of every nine units are arranged as the active units, and the invention has the advantages of reducing the cost of a material semiconductor and reducing the complexity of a control circuit.
(4) The invention verifies that the mixed reflecting surface can effectively enhance the reflected signal and enlarge the signal transmission range, thereby reducing the deployment of the base station and effectively saving resources.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a flow chart of a method for adjusting reflection gain of an intelligent reflection surface based on a subarray of a mixing unit;
FIG. 2 is a deployment diagram of passive and active reflection units of an intelligent reflection surface adjustable reflection gain method based on a hybrid unit sub-array of the present invention;
FIG. 3 is a diagram showing the relationship between the positions of a base station to an intelligent reflecting surface and the positions of the intelligent reflecting surface to a user in an intelligent reflecting surface adjustable reflection gain method based on a sub-array of a mixing unit;
FIG. 4 is a graph of the ratio of passive reflection units to active reflection units versus the reflection surface gain in an intelligent reflection surface adjustable reflection gain method based on a hybrid unit sub-array according to the present invention;
FIG. 5 is a graph showing the relationship between the reflection surface gain and the transmission distance d2 in an intelligent reflection surface adjustable reflection gain method based on a sub-array of a mixing unit according to the present invention;
FIG. 6 is a schematic diagram of an array deployment of an 18X 18 hybrid reflective unit for an intelligent reflective surface adjustable reflective gain method based on a hybrid unit sub-array in accordance with the present invention;
FIG. 7 is an illustration of a passive reflection unit and an active reflection unit for an intelligent reflection surface adjustable reflection gain method based on a hybrid unit sub-array of the present invention.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Examples
1-6, The invention provides an intelligent reflection surface adjustable reflection gain method based on a hybrid unit subarray, which is applicable to an intelligent reflection surface, wherein the intelligent reflection surface comprises a dual-polarized intelligent reflection surface formed by a passive reflection unit and an active reflection unit; the method specifically comprises the following steps:
S1: the intelligent reflecting surface of the mixing unit receives signals sent by a transmitting end, the signals of the transmitting end come from a base station, a user is a final receiving end, and the user randomly moves and receives signals transmitted or reflected by different base stations or intelligent reflecting surfaces of the mixing unit; a schematic representation of a passive reflecting unit and an active reflecting unit is shown in fig. 7.
As shown in fig. 2, the intelligent reflecting surface of the present example is composed of passive reflecting units and active reflecting units, the unit geometry is symmetrical with respect to the X-axis and the Y-axis, the unit period and the size are designed according to the required working center frequency, and the arrangement of 3×3 reflecting units is used as a sub-array. The active reflective units in each sub-array are disposed in a symmetrical fashion, i.e., the disposed positions of the active units in one sub-array are five positions of upper left, upper right, center, lower left and lower right. Each active reflective element is independently controllable. In practical application, the base station is a transmitting end, the user is a receiving end, the mixed reflecting surface can effectively enhance the reflected signals and enlarge the signal transmission range, so that the deployment of the base station is reduced, and the resources are effectively saved.
S2: judging according to the intensity and the distance of the signal required by the receiving end, and adaptively starting the number of active reflection units required by the corresponding intensity or distance; so as to achieve the effect of amplifying the incident signal.
The central frequency is 3.5GHz, the size of each reflecting unit is 2cm multiplied by 2cm, nine reflecting units form a3 multiplied by 3 reflecting surface subarray, the active reflecting units are distributed in an x-axis or y-axis symmetrical form, the other four positions are passive reflecting units, and each subarray is composed of 5 active reflecting units and 4 passive reflecting units at most. Due to hardware cost and wiring complexity issues, the use of more than 5 active reflective elements in a reflective surface sub-array is not recommended.
Specifically, when the intelligent reflecting surface of the mixing unit receives the signal transmitted by the base station, the embodiment judges the distance of the transmitted target user so as to start the active reflecting units with the moving quantity, thereby achieving the purpose of enhancing the signal intensity. In step S2, the reflection coefficient Γ is set as follows:
Wherein Z L and Z A represent load and antenna impedance, respectively;
the passive intelligent reflecting surface utilizes a passive load, and the corresponding reflection coefficient |Γ| 2 is less than or equal to 1, so that the reflection coefficient of the passive reflecting surface is less than 1, and path loss occurs;
A tunnel diode is added into the passive reflection unit, and according to the negative input resistance characteristic of the tunnel diode, the reflection coefficient |Γ| 2 is more than or equal to 1, and the specific formula of the impedance of the tunnel diode is as follows:
ZL＝-RL+jXL,RL>1
Wherein R L and X L represent resistance and reactance, respectively, and the formula of the reflection coefficient of the active reflection unit according to the above formula is specifically expressed as:
Wherein R A and X A respectively represent resistance and reactance, when the signal intensity needs to be increased according to the formula, setting a reflection coefficient |Γ| 2 to be more than or equal to 1, starting an active reflection unit, and obtaining the proportion of starting the active reflection unit according to the intensity required by a user;
As shown in fig. 3, a distance from the base station to the center of the intelligent reflection surface of the hybrid unit is d 1, a distance from the center of the intelligent reflection surface of the hybrid unit to the user is d 2, and a corresponding path loss is obtained according to a path loss formula, where a specific expression is as follows:
Wherein G t denotes the gain of the transmitting antenna, G r denotes the gain of the receiving antenna, Γ denotes the reflection gain of a single cell, M denotes the number of columns of cells, N denotes the number of rows of reflecting surface cells, d x denotes the width of a cell, d y denotes the length of a cell, a denotes the amplitude, λ denotes the wavelength, F (θ, Φ) is the normalized power radiation pattern of a cell, and the dependence of the incident/reflected power density of a cell on the incident/reflected angle is revealed, where θ denotes the elevation angle, Φ denotes the azimuth angle, and F (θ, Φ) has the following specific expression:
From the two formulas of PL and F (θ, Φ), the corresponding path loss is calculated, which results in a multiple increase in path loss when the signal is reflected only by the passive smart reflective surface.
S3: acquiring signal power received when the intelligent reflecting surface of the mixing unit does not start the active reflecting unit; specifically, in step S3, the signal is transmitted from the base station to the intelligent reflection surface of the mixing unit, and the intelligent reflection surface of the mixing unit calculates the signal power received when the active reflection unit is not turned on by the user according to the distance from the reflection surface to the user, and sets the power of the base station transmission signal as P t, and the variables involved in step S2 calculate the signal power P r received when the active reflection unit is not turned on by the user, where the specific formula is expressed as follows:
according to the formula, the power of the signal received when the user does not turn on the active reflection unit is calculated.
S4: according to the received signal power, the subunit array makes a judgment that a certain number of active reflecting units are started or not started, and the ratio of the active reflecting units to the passive reflecting units (hereinafter referred to as the main ratio) is 1:8,2:7 and 3: 6. Specifically, as shown in fig. 2, in step S4, the intelligent reflection surface of the hybrid unit is composed of active reflection units and passive reflection units, the unit geometry is symmetrical about the X-axis and the Y-axis, the unit period and the size are designed according to the designated working center frequency, each 3×3 is a subarray, in the single subarray, the active reflection units are deployed in a "symmetrical" form, when the intelligent reflection surface of the hybrid unit obtains the result of step S3, the subarray array makes a judgment to turn on or not turn on a certain number of active reflection units, and the main ratio of the active reflection units to the passive reflection units becomes 1:8,2:7 and 3:6 the three states of course, the active reflecting unit may be appropriately increased according to the tradeoff between the demand of practical application and the cost of the reflecting surface, and the active reflecting unit may be appropriately increased according to the tradeoff between the demand of practical application and the cost of the reflecting surface, such as 4:5 and 5:4.
Therefore, the intelligent reflection surface adjustable reflection gain method based on the hybrid unit subarray solves the problem of 'multiplicative fading' caused by the single reflection surface formed by the passive reflection units and the problem of how the active reflection units and the passive reflection units are distributed at present, and the communication scene of purposefully amplifying target signals is realized by regulating and controlling the proportion of the active reflection units and the passive reflection units, so that the hybrid reflection surface can effectively enhance reflection signals and enlarge signal transmission range, thereby reducing the deployment of base stations and effectively saving resources.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (2)
1. An intelligent reflection surface adjustable reflection gain method based on a mixed unit subarray is characterized in that: the intelligent reflecting surface comprises a dual-polarized intelligent reflecting surface formed by a passive reflecting unit and an active reflecting unit; nine reflecting units form a 3X 3 reflecting surface subarray, the active reflecting units are arranged to be distributed in an x-axis or y-axis symmetrical form, and the subarrays are formed by at least 1 active reflecting unit placed in the center or 2 active reflecting units, and the rest positions are passive reflecting units; the subunit is composed of at most 3 active reflecting units and 6 passive reflecting units;
The method specifically comprises the following steps:
S1: the intelligent reflecting surface of the mixing unit receives signals sent by a transmitting end, the signals of the transmitting end come from a base station, a user is a final receiving end, and the user randomly moves and receives signals transmitted or reflected by different base stations or intelligent reflecting surfaces of the mixing unit;
S2: judging according to the intensity and the distance of the signal required by the receiving end, and adaptively starting the number of active reflection units required by the corresponding intensity or distance; in step S2, the reflection coefficient Γ is set as follows:
Wherein Z L and Z A represent load and antenna impedance, respectively;
the passive intelligent reflecting surface utilizes a passive load, and the corresponding reflection coefficient |Γ| 2 is less than or equal to 1, so that the reflection coefficient of the passive reflecting surface is less than 1, and path loss occurs;
A tunnel diode is added into the passive reflection unit, and according to the negative input resistance characteristic of the tunnel diode, the reflection coefficient |Γ| 2 is more than or equal to 1, and the specific formula of the impedance of the tunnel diode is as follows:
ZL＝-RL+jXL,RL>1
Wherein R L and X L represent resistance and reactance, respectively, and the formula of the reflection coefficient of the active reflection unit according to the above formula is specifically expressed as:
Wherein R A and X A respectively represent resistance and reactance, when the signal intensity needs to be increased according to the formula, setting a reflection coefficient |Γ| 2 to be more than or equal to 1, starting an active reflection unit, and obtaining the proportion of starting the active reflection unit according to the intensity required by a user;
the distance from the base station to the center of the intelligent reflecting surface of the mixing unit is d 1, the distance from the center of the intelligent reflecting surface of the mixing unit to the user is d 2, and the corresponding path loss is obtained according to the path loss formula, wherein the specific expression is as follows:
Wherein G t denotes the gain of the transmitting antenna, G r denotes the gain of the receiving antenna, Γ denotes the reflection gain of a single cell, M denotes the number of columns of cells, N denotes the number of rows of reflecting surface cells, d x denotes the width of a cell, d y denotes the length of a cell, a denotes the amplitude, λ denotes the wavelength, F (θ, Φ) is the normalized power radiation pattern of a cell, and the dependence of the incident/reflected power density of a cell on the incident/reflected angle is revealed, where θ denotes the elevation angle, Φ denotes the azimuth angle, and F (θ, Φ) has the following specific expression:
Calculating corresponding path loss according to the two formulas of PL and F (theta, phi), and obtaining that the path loss is multiplied when the signal is reflected by the passive intelligent reflecting surface only;
s3: acquiring signal power received when the intelligent reflecting surface of the mixing unit does not start the active reflecting unit;
in step S3, the signal is transmitted from the base station to the intelligent reflection surface of the mixing unit, and the intelligent reflection surface of the mixing unit calculates the power of the signal received when the active reflection unit is not turned on by the user according to the distance from the reflection surface to the user, and sets the power of the signal transmitted by the base station as P t, and the variables involved in step S2 calculate the power of the signal received when the active reflection unit is not turned on by the user as P r, where the specific formula is as follows:
according to the formula, calculating the power of the signal received when the user does not start the active reflection unit;
S4: according to the received signal power, the subunit array makes a judgment, and a certain number of active reflecting units are started or not started, wherein the main proportion of the active reflecting units to the passive reflecting units is 1:8,2:7 and 3: 6.
2. The method for adjusting the reflection gain of the intelligent reflection surface based on the subarray of the mixing unit according to claim 1, wherein the method comprises the following steps of: in step S4, the intelligent reflection surface of the hybrid unit is composed of active reflection units and passive reflection units, the unit geometry is symmetric about the X-axis and the Y-axis, the unit period and the size are designed according to the designated working center frequency, each 3×3 is a sub-array, the active reflection units are deployed in a symmetric manner in a single sub-array, and when the intelligent reflection surface of the hybrid unit obtains the result of step S3, the sub-unit array makes a judgment to turn on or not turn on a certain number of active reflection units.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311503144.4A CN117792457B (en) | 2023-11-10 | 2023-11-10 | Intelligent reflection surface adjustable reflection gain method based on hybrid unit subarray |
| ZA2023/10584A ZA202310584B (en) | 2023-11-10 | 2023-11-15 | A method of reconfigurable intelligent surface with adjustable reflection gain based on hybrid cell subarray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311503144.4A CN117792457B (en) | 2023-11-10 | 2023-11-10 | Intelligent reflection surface adjustable reflection gain method based on hybrid unit subarray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117792457A CN117792457A (en) | 2024-03-29 |
| CN117792457B true CN117792457B (en) | 2024-07-02 |
Family
ID=90395333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311503144.4A Active CN117792457B (en) | 2023-11-10 | 2023-11-10 | Intelligent reflection surface adjustable reflection gain method based on hybrid unit subarray |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117792457B (en) |
| ZA (1) | ZA202310584B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258980A (en) * | 2021-07-01 | 2021-08-13 | 南京邮电大学 | Information transmission rate optimization method and device for wireless communication system |
| CN116633404A (en) * | 2023-05-10 | 2023-08-22 | 华南理工大学 | Combined beam forming and deployment method for double intelligent reflecting surface auxiliary communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113726383B (en) * | 2021-08-18 | 2023-07-25 | 深圳大学 | Intelligent reflection surface-assisted wireless communication system |
-
2023
- 2023-11-10 CN CN202311503144.4A patent/CN117792457B/en active Active
- 2023-11-15 ZA ZA2023/10584A patent/ZA202310584B/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258980A (en) * | 2021-07-01 | 2021-08-13 | 南京邮电大学 | Information transmission rate optimization method and device for wireless communication system |
| CN116633404A (en) * | 2023-05-10 | 2023-08-22 | 华南理工大学 | Combined beam forming and deployment method for double intelligent reflecting surface auxiliary communication |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202310584B (en) | 2024-05-30 |
| CN117792457A (en) | 2024-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Nair et al. | Reconfigurable antenna with elevation and azimuth beam switching | |
| US9397740B2 (en) | Modular antenna array with RF and baseband beamforming | |
| CN100539460C (en) | A kind of wave beam switches intelligent antenna equipment | |
| CN101842714B (en) | Communication system and method using an active phased array antenna | |
| CN106654511B (en) | A kind of miniaturization transmit-receive sharing broad beam covering antenna | |
| US10505284B2 (en) | Antenna system | |
| CN207852915U (en) | A kind of low section beam switchover smart antenna | |
| US11201630B2 (en) | Method and apparatus for a frequency-selective antenna | |
| CN108539435A (en) | Scanning Phased Array Antenna with Broadband based on slot antenna and frequency-selective surfaces | |
| CN108598677A (en) | A kind of radiating element and antenna with space filtering function | |
| Ngamjanyaporn et al. | Signal-to-interference ratio improvement by using a phased array antenna of switched-beam elements | |
| CN117792457B (en) | Intelligent reflection surface adjustable reflection gain method based on hybrid unit subarray | |
| CN113437476B (en) | Antenna assembly, electronic equipment and communication system | |
| CN104638383A (en) | Intelligent antenna assembly and quick radiation pattern switching method thereof | |
| CN107546478A (en) | Using the large-angle scanning phased array antenna and design method of particular orientation figure array element | |
| Nakagawa et al. | 28GHz active phased array antenna employing GaAs frontend module for massive MIMO in 5G | |
| Krairiksh et al. | A flat four-beam compact phased array antenna | |
| Cladwell et al. | Design and implementation of a switched-beam smart antenna for an 802.11 b wireless access point | |
| CN114171933B (en) | Microwave rectification antenna array mode based on cross growth method | |
| CN106356628A (en) | Antenna control system | |
| CN213584185U (en) | 5G phase-controlled microstrip antenna | |
| CN112103625B (en) | High-isolation and low-sidelobe MassiveMIMO antenna array and array combining method | |
| CN206098716U (en) | Power antenan system | |
| CN112993596A (en) | Dimension-reducing multi-beam antenna system | |
| US20190221929A1 (en) | Method and apparatus for a metastructure switched antenna in a wireless device |
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 |