A distributed microwave and millimeter wave electromagnetic characteristic control device and its collaborative method

Abstract

The present invention discloses a device for distributed microwave and millimeter wave electromagnetic characteristic control, including at least one control server and at least one distributed electromagnetic characteristic control block; each distributed electromagnetic characteristic control block includes at least one group of electromagnetic characteristic control components; each group of electromagnetic characteristic control components is composed of a functional array based on information meta-structure materials, a driving module, and a control module; the functional array based on information meta-structure materials can control the electromagnetic field / wave in at least one electromagnetic physical domain, and realize the control function in at least one physical domain. The control component nodes in the electromagnetic characteristic control device communicate and cooperate through an agreed protocol to execute corresponding control instructions; the collaborative protocol can be a private protocol or a public protocol; it can be synchronous collaboration or asynchronous collaboration.

Description

Technical Field

[0001] The present invention belongs to the technical field of new artificial electromagnetic material surfaces, and in particular relates to a device for controlling distributed microwave and millimeter wave electromagnetic characteristics and a coordination method thereof. Background Art

[0002] Metamaterials refer to artificial composite structures formed by subwavelength-scale units arranged in a certain macroscopic manner (periodic or non-periodic). Since their basic units and arrangements can be arbitrarily designed, they can break through the limitations of traditional materials that are difficult to precisely control at the atomic or molecular level, construct unconventional medium parameters that cannot be achieved by traditional materials and traditional technologies, and then efficiently and flexibly control electromagnetic waves to achieve a series of novel physical properties and applications. In the past two decades, metamaterials have been at the international forefront of physics and information. Based on the equivalent medium theory and guided by methods such as transformation optics, new electromagnetic structure designs continue to emerge, such as electromagnetic invisibility cloaks, invisible carpets, perfect absorbers, electromagnetic black holes, etc., which have attracted great attention from scientists and government organizations around the world.

[0003] Over the past two decades, metamaterials have been centered on equivalent media, but metamaterials based on equivalent media are difficult to manipulate electromagnetic waves in real time. From a circuit perspective, metamaterials with continuous media parameters can be called analog metamaterials. In order to realize the "digital version" of metamaterials, Chinese scholars and Engheta's research group at the University of Pennsylvania independently proposed the concept of digital metamaterials. Engheta et al. proposed a method to construct "metamaterial bytes" through spatially mixed "digital metamaterial bits" to achieve the required media parameters (Nature Materials, published online on September 14, 2014). The "digital metamaterial bits" are composed of material particles with different media parameters (such as positive dielectric constants and negative dielectric constants). Therefore, the core of Engheta's work is to describe equivalent media by means of digital bits, which still belongs to the category of equivalent media metamaterials. Due to the complexity of actual operations, Engheta's work has not been experimentally verified so far. At the same time, Cui Tiejun and others creatively studied metamaterials from the perspective of information science, abandoned the characterization method of equivalent media, and proposed a new idea of ​​using digital coding to characterize metamaterials, namely information metamaterials, and controlled electromagnetic waves by changing the spatial arrangement of digital coding units (Light: Science & Applications, formally accepted on September 9, 2014, published online on October 24, 2014). This idea was not only confirmed by experiments, but also opened up a new field and opened up a new direction for the development of metamaterial technology.

[0004] The information metamaterial involved in the present invention, also called digital electromagnetic metamaterial or electromagnetic coding metamaterial, can digitize electromagnetic analog signals and intelligently and real-time adjust the electromagnetic information characteristics of the material to adapt to or change the surrounding electromagnetic environment, that is, it has the ability to control electromagnetic waves in real time in multi-dimensional electromagnetic physical spaces such as time-space-frequency-polarization. One of its important characteristics is that it can directly process digitally coded information. For example, a 1-bit information metamaterial uses unit code elements of "0" and "1" to represent the phase responses of 0° and 180° respectively, and then arranges such unit code elements of "0" and "1" according to a certain rule to form a metamaterial surface (or metasurface, metasurface) to achieve the desired design function; while a 2-bit information metamaterial uses unit code elements such as "00", "01", "10" and "11" to represent the phase responses of 0°, 90°, 180° and 270° respectively, so as to arrange the units and form a metasurface with specific functions; and so on, multi-bit unit code elements use a finite number of electromagnetic metamaterial unit forms with basically stable phase differences, and are arranged according to a certain coding rule, with 2 N The multi-bit metasurface has the same advantages of digital design as the 1-bit metasurface, and has more coding combinations, so it can control electromagnetic waves more freely, realize more functions, and achieve better control effects. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a distributed microwave millimeter wave electromagnetic characteristic control device and method thereof to solve the problem of engineering application and implementation of large-scale or ultra-large-scale arrays.

[0006] The present invention adopts the following technical solution to solve the above technical problems: a device for controlling the electromagnetic characteristics of distributed microwave and millimeter waves, the device comprising at least one control server and at least one distributed electromagnetic characteristics control block;

[0007] Each distributed electromagnetic characteristic control block includes at least one electromagnetic characteristic control component;

[0008] Each electromagnetic characteristic control component is composed of a functional array based on information metamaterials, a driving module, and a control module. The driving module is the working voltage or current required by the active devices on the functional array, and the control module provides control logic for the encoding of the functional array by regulating the corresponding working voltage or current value of the driving module.

[0009] The control server and the distributed electromagnetic characteristic control block are connected via network cables, optical fibers, or flat cables;

[0010] The electromagnetic characteristic control components in the distributed electromagnetic characteristic control block are also connected by means of network cables, optical fibers, or flat cables;

[0011] Based on the functional array of information metamaterials, the electromagnetic field / wave can be controlled within at least one electromagnetic physical domain.

[0012] The above-mentioned distributed electromagnetic characteristic control block includes at least one electromagnetic characteristic control component, and the components can be networked in one or more hybrid forms such as tree, star, ring, daisy chain, etc.

[0013] The above-mentioned electromagnetic characteristic control component, the functional array based on information metamaterials can control the electromagnetic field or electromagnetic wave in any physical domain of amplitude, phase, polarization, and frequency, or perform comprehensive control of multiple physical domains at the same time to achieve specific electromagnetic functions.

[0014] Optionally, a control gateway is provided between the control server and the distributed electromagnetic characteristic control block.

[0015] The present invention also proposes a collaborative method implemented by the above-mentioned distributed microwave millimeter wave electromagnetic characteristic control device, the method comprising the following steps:

[0016] (1) establishing a distributed network based on the expansion of the control block by a control server and at least one electromagnetic characteristic control component;

[0017] (2) Topology learning and electromagnetic feature control component node positioning based on distributed networks;

[0018] (3) The control server generates corresponding function codes / instructions and sends them to each electromagnetic characteristic control component;

[0019] (4) The electromagnetic characteristic control components within the electromagnetic characteristic control device communicate and collaborate with each other through an agreed protocol to execute corresponding functional codes / instructions.

[0020] The collaborative protocol can be a private protocol or a public protocol; and it can be synchronous collaboration or asynchronous collaboration.

[0021] When the collaborative method of the above-mentioned distributed control device adopts public collaboration for collaboration and communication, it is necessary to perform protocol conversion through the control gateway to convert the public protocol into a private protocol before collaboration and communication.

[0022] In the collaborative method of the above-mentioned distributed control device, during synchronous collaboration, the distributed electromagnetic characteristic control components need to perform time synchronization and clock frequency synchronization and execute functional codes / instructions at the specified time.

[0023] In the above-mentioned collaborative method of the distributed control device, when asynchronously coordinating, the distributed electromagnetic characteristic control component executes the function code / instruction after receiving the message and has no association with other nodes.

[0024] Beneficial technical effects: Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0025] Traditional metamaterial surfaces use FPGA's I / O interface to directly drive controlled components (such as diodes, MEMS devices, etc.) or expand the I / O interface through CLPD or shift registers to drive controlled components. Such an architecture cannot be further expanded. More than two arrays or control systems can only be simply cascaded but cannot be coordinated. For application scenarios such as large-scale / ultra-large-scale arrays or distributed arrays, large-scale coordination cannot be achieved because the time synchronization and frequency synchronization benchmarks cannot be coordinated.

[0026] The distributed microwave millimeter-wave electromagnetic property control device, in addition to having the characteristics of adjusting the electromagnetic information characteristics of materials and controlling electromagnetic waves / fields of traditional metamaterial surfaces and existing information metamaterial surfaces, further solves the limitation problem of traditional information metasurface expansion, because the traditional information metasurface architecture is limited by the limited I / O interface of the control chip or enabling chip, and the direct cascading cannot achieve the coordination of large-scale or ultra-large-scale arrays. At the same time, it has the ability to control electromagnetic waves in real time in multi-dimensional electromagnetic physical spaces such as time-space-frequency-polarization, that is, it has more powerful comprehensive control capabilities, and has broad application prospects in new-system radars, new-system communication systems, intelligent skins, wireless planning and channel optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The invention is a typical embodiment of a distributed microwave and millimeter wave electromagnetic characteristic control device.

[0028] Figure 2 yes Figure 1 A typical embodiment of the electromagnetic characteristic control component in the distributed microwave and millimeter wave electromagnetic characteristic control device is shown.

[0029] Figure 3 yes Figure 2 Typical embodiments of the modules of the distributed electromagnetic property control device shown in the figure, wherein (a) is a typical embodiment of the functional array based on information metamaterials, (b) is a typical embodiment of the driving module, and (c) is a typical embodiment of the control module.

[0030] Figure 4It is a typical network form implementation example of a distributed electromagnetic property control block. Among them, (a) is a typical implementation example of a star network, and (b) is a typical implementation example of a tree network.

[0031] Figure 5 It is another typical embodiment of a distributed microwave and millimeter wave electromagnetic property control device.

[0032] Figure 6 The present invention is a typical embodiment of a distributed microwave millimeter wave electromagnetic characteristic control device that adopts a public protocol for node communication.

[0033] Figure 7 A method flow for synchronous coordination of distributed microwave and millimeter wave electromagnetic characteristic control devices.

[0034] Figure 8 A method flow for asynchronous coordination of distributed microwave and millimeter wave electromagnetic characteristic control devices. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings:

[0036] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0037] Combination Figures 1 to 3 , which is a typical embodiment of the present invention, the distributed microwave millimeter wave electromagnetic characteristic control device is composed of a control server 1 and a distributed electromagnetic characteristic control block 2, wherein the distributed electromagnetic characteristic control block 2 includes two electromagnetic characteristic control components 21 and 22, forming a distributed network architecture; the control server 1 is connected to the electromagnetic characteristic control component 21 in the distributed electromagnetic characteristic control block 2 through a network cable, optical fiber, or cable 3, and the electromagnetic characteristic control component 21 is further connected to the electromagnetic characteristic control component 22 through a network cable, optical fiber, or cable 4.

[0038] The electromagnetic characteristic control components 21 and 22 are respectively composed of a functional array 211 based on information metamaterials, a driving module 212, and a control module 213. The functional array 211 based on information metamaterials is connected to the driving module 212 via a cable or a socket 214. Similarly, the driving module 212 is also connected to the control module 213 via a cable or a socket 215.

[0039] Further integration Figure 2 and Figure 3 , respectively describe the typical implementation examples of each module in the electromagnetic characteristic control component.

[0040] The functional array 211 based on information metamaterials is composed of M×N periodically or quasi-periodically arranged artificial electromagnetic structure units 221, which can be prepared by rigid or flexible PCB process, coating process, etc.; the surface of each unit 221 includes a metal patch structure 222 (such as a triangular, rectangular or polygonal patch, a circular patch, or a patch of other shapes) and an active control device 223 (such as a PIN diode, a varactor diode, a FET tube, a MEMS device, etc.) through theoretical design and full-wave simulation, and the active control device 223 is mounted on the surface of the metal patch structure 222 to form a typical microwave "circuit" to achieve a corresponding response to the electromagnetic field or electromagnetic wave.

[0041] The typical driving module 212 can be prepared by a typical rigid or flexible PCB process, and includes: a cable or socket 214 connected to the functional array 211, a cable or socket 215 connected to the control module 213, a power chip 232, and a driving or I / O expansion chip 231, which can provide working voltage or current to the active control device 223 on the functional array 211.

[0042] The typical control module 213 can also be prepared by a typical rigid or flexible PCB process, which includes: a line or a strip 215 connected to the driving module 212, a control / logic chip 241 (such as DSP, FPGA, CPLD, or ARM, RISC-V and single-chip microcomputer chip, etc.) and related peripheral circuits. Or the functional array 211 based on information meta-materials and the driving module 212 are processed and prepared into a module through a multi-layer PCB process, or the driving module 212 and the control module 213 are processed and prepared into a module through a multi-layer PCB process. The electromagnetic characteristic control functional array 211 based on information meta-materials can control the electromagnetic field or electromagnetic wave in any physical domain of amplitude, phase, polarization, and frequency, or perform comprehensive control in multiple physical domains at the same time to achieve specific electromagnetic functions. For example, by adjusting the current or voltage value of the active control device (such as a PIN diode) on the functional array 211 based on information meta-materials, the amplitude of the scattered electromagnetic field of each unit of the information meta-surface can be controlled, thereby realizing the control of the amplitude domain of the electromagnetic control functional array 211.

[0043] For another example, by adjusting the on and off of the active control device (such as FET or MEMS device) on the functional array 211 based on the information meta-structure material, the two opposite states of the phase of the scattered electromagnetic field of each unit of the information meta-structure surface can be achieved, thereby controlling the phase domain of the electromagnetic control array. The control effect in the amplitude domain and the phase domain can be uniformly represented by the following mathematical expression (1). Assuming that the functional array 211 based on the information meta-structure material surface is composed of M×N repeated periodically arranged units, its scattered electric field is:

[0044]

[0045] in, is the scattering electric field pattern of the information metamaterial unit, θ and φ are the azimuth angles of the spatial coordinates in the spherical coordinate system, d is the period interval of the information metamaterial unit, is the scattering phase value corresponding to the code of the (m, n)th metamaterial unit, that is, for a 1-bit codeword, the "0" codeword represents a discrete phase value of 0, and the "1" codeword represents a discrete phase value of π. For a 2-bit codeword, the "00", "01", "10", and "11" codewords represent discrete phase values ​​of 0, π / 2, π, and 3π / 2, respectively, and so on.

[0046] For another example, by adjusting the bias voltage value of the active control device (such as a varactor diode) on the functional array 211 based on the information metamaterial, different parameter responses (such as capacitance values) can be formed, thereby forming different reflection polarization angles of the scattered electric field of the information metamaterial unit, further constituting the control of the electromagnetic control array in the polarization domain.

[0047] The functional array 211 based on information metamaterials can be regulated in the dimensions of amplitude domain, phase domain and polarization domain mentioned above, and can also be regulated in the physical dimension of time / frequency domain by changing or adjusting the coding sequence.

[0048] For the time / frequency domain control of scattering characteristics, a control device (such as FPGA or single-chip microcomputer, etc.) can be used to generate a time-varying signal to achieve a time-varying reflection coefficient Γ(t). i When (t) is incident on the surface, the reflected wave can be expressed as E r (t) = E i (t)·Γ(t), by selecting a suitable time domain coding sequence, the spectrum can be controlled. The spectrum of the time domain reflection wave can be expressed by convolution as follows:

[0049]

[0050] Among them, E r (f) is the reflected wave in the frequency domain, E i(f) is the incident wave in the frequency domain, Γ(f) is the reflection coefficient in the frequency domain, a 0 is the 0th-order Fourier series term, a k is the k-th order Fourier series term, f 0 is the time domain modulation frequency, that is, the repetition frequency of the time domain coding sequence. Therefore, the time domain characteristics of the reflected wave can be controlled by the time-varying reflection coefficient. For traditional devices or surfaces, since the reflection coefficient is time-invariant, there is only a 0 For the functional array 211 based on information metamaterial regulated in the time / frequency domain, time-space coding is performed, for example, the arrangement coding t 0 The time is 1 code element, t 1 The time is 0 code element, t 2 The time is 1 code element, t 3 The time is 0 coded symbol... and so on, the time interval is 0.1ms. Since the reflection coefficient is time-varying, there are high-order Fourier series terms, which can generate nonlinear characteristics to adjust the spectrum. Since the functional array 211 based on information metamaterials regulated in the time / frequency domain becomes a nonlinear device without the need to use nonlinear materials, the amplitude and phase of each order of harmonics can be independently regulated, that is, the amplitude of each order of harmonics of the reflected wave is regulated by the control voltage combination, and the phase of each order of harmonics of the reflected wave is regulated by the control signal delay, which can realize the independent regulation of the amplitude and phase of each order of harmonics of the reflected wave, and can also realize the simultaneous regulation of multiple order harmonics.

[0051] Furthermore, the electromagnetic characteristic control components in the distributed electromagnetic characteristic control block may adopt one or more hybrid networking forms. Figure 4 As shown, Figure 4 a is an embodiment of a typical star network architecture, in which the control server 1 is connected to the electromagnetic characteristic control component 21 in the distributed electromagnetic characteristic control block 2 via a network cable, optical fiber, or cable, that is, the electromagnetic characteristic control component 21 becomes the central node of the star distributed network, and then the electromagnetic characteristic control component 21 is connected to other electromagnetic characteristic control components in the distributed electromagnetic characteristic control block 2 via a network cable, optical fiber, or cable, such as the electromagnetic characteristic control component 22, which is the remote node of the distributed network.

[0052] For example Figure 4b is an embodiment of a typical tree network architecture. The control server 1 is connected to the electromagnetic characteristic control component 21 in the distributed electromagnetic characteristic control block 2 through a network cable, an optical fiber, or a cable, that is, the electromagnetic characteristic control component 21 becomes the first-layer node of the distributed network, and then the electromagnetic characteristic control component 21 is connected to the electromagnetic characteristic control component of the second layer in the distributed electromagnetic characteristic control block 2 through a network cable, an optical fiber, or a cable, such as the electromagnetic characteristic control component 22, and then further connected to the electromagnetic characteristic control component of the second layer through a network cable, an optical fiber, or a cable, such as the electromagnetic characteristic control component 23; the electromagnetic characteristic control components 22 and 23 are all hierarchical nodes of the distributed network. The control server 1 can directly communicate with each control component node in the distributed electromagnetic characteristic control block 2 through a private protocol to perform unified or independent control. The network form between each control component in the distributed electromagnetic characteristic control block 2 is not limited to the above-mentioned star and tree architectures, and can also adopt one or several mixed networking forms such as rings and daisy chains. The private protocol here refers to the pre-defined rules and standards for communication and collaboration within the internal network of the control device, including but not limited to syntax, semantics and timing.

[0053] Furthermore, the control server 1 can be connected to multiple distributed electromagnetic characteristic control blocks and implement control. Figure 5 As shown, the control server 1 is connected to the distributed electromagnetic characteristic control blocks 2 and 3 respectively through network cables, optical fibers, or flat cables, that is, the control server 1 is connected to the electromagnetic characteristic control component 21 in the distributed electromagnetic characteristic control block 2 and the electromagnetic characteristic control component 31 in the distributed electromagnetic characteristic control block 3; and the distributed electromagnetic characteristic control blocks 2 and 3 are respectively implemented according to the star network architecture and the tree network architecture, that is, the electromagnetic characteristic control component 21 is the central node of the star distributed network, and the electromagnetic characteristic control component 31 is the first-layer node of the tree distributed network, and so on, the node expansion of the corresponding network form is performed. The control server 1 can directly communicate and cooperate with the control component nodes in multiple distributed electromagnetic characteristic control blocks through private protocols to perform unified or independent control; the control components in the distributed electromagnetic characteristic control blocks can adopt one or more mixed networking forms such as star, tree, ring, daisy chain, etc.

[0054] Furthermore, the control server can communicate and collaborate with the control component nodes in multiple distributed electromagnetic characteristic control blocks through a public protocol to perform unified or independent control. Figure 6As shown, it is a typical embodiment of a distributed microwave millimeter wave electromagnetic characteristic control device that uses a public protocol for node communication. The control server 1 is connected to the control gateway 4 through a network cable, optical fiber, or cable, etc., and the public protocol is converted into a private protocol. Then the control gateway 4 is connected to the distributed electromagnetic characteristic control blocks 2 and 3 through a network cable, optical fiber, or cable, etc., and the distributed electromagnetic characteristic control blocks 2 and 3 are respectively implemented according to the tree network architecture to perform node expansion in the corresponding network form. Without loss of generality, in addition to the star and tree shapes, one or several mixed networking forms such as ring and daisy chain can be used between the control components in the distributed electromagnetic characteristic control block. The public protocol here is different from the self-defined rules and standards. It is a universal industrial standard for communication networks, that is, the public protocol is used as a standard external control interface and standard. This method is conducive to more general development and application implementation.

[0055] The beneficial features brought by this distributed electromagnetic property control block are mainly reflected in the following aspects:

[0056] (1) Through the distributed network architecture, the various control components within the electromagnetic property control block can be cascaded and expanded indefinitely in theory, without being limited by the control chip's large-scale node coordination capabilities, making expansion simpler and easier to achieve.

[0057] (2) Through the distributed network architecture, the various control components within the electromagnetic property control block do not have to be directly spliced ​​or centrally arranged. Within the defined block, they are not restricted by distance and space, and the spatial expansion is freer and more flexible.

[0058] (3) The distributed network architecture is not limited to conventional private protocol communication methods, but can also use public protocols for communication.

[0059] The distributed microwave and millimeter wave electromagnetic characteristic control device can coordinate the control of the distributed network in a synchronous or asynchronous manner, that is, the distributed electromagnetic characteristic control block and the electromagnetic characteristic control component need to perform time synchronization and clock frequency synchronization before executing instructions; or they can execute instructions after receiving the message. The choice of synchronous or asynchronous coordination depends on the actual application scenario, control effect and coding method of electromagnetic characteristic control.

[0060] Combine the following Figures 4 to 8 To further illustrate the method of coordination of distributed microwave and millimeter wave electromagnetic characteristic control devices, the coordination here is divided into synchronous coordination and asynchronous coordination; and in the coordination network, the electromagnetic characteristic control blocks or electromagnetic characteristic control components constitute the nodes within the network.

[0061] like Figure 7As shown, it is a method flow for synchronous coordination of distributed microwave millimeter wave electromagnetic characteristic control devices:

[0062] First, the entire distributed control network is initialized, and steps such as network learning, architecture topology analysis, and Mac address resolution are performed.

[0063] The second step is to locate the network coordinates of the nodes according to the architecture of the resolved distributed regulatory network.

[0064] The third step is to designate the master node, which is used as a reference for synchronization and coordination. The master node here can be a node at any location in the distributed network. Usually, the node closest to the control server link is used as the master node, such as Figure 4 a, the central node 21 of the star network, or Figure 4 b is the first layer node 21 of the tree network; or for an embodiment in which the control server corresponds to multiple distributed electromagnetic characteristic control blocks, only one node needs to be designated as the master node, such as Figure 5 The electromagnetic characteristic control component node 21 or 31 in the control server. Alternatively, the node farthest connected to the control server link is used as the master node, such as Figure 4 The third-layer node 23 of the tree network in b.

[0065] The fourth step is to perform time-frequency synchronization, that is, to establish reference time and reference clock frequency. The synchronization here can be achieved through standard protocols, such as IEEE1588 protocol, AS6802 protocol, etc., or through physical connection, such as connecting the reference clock of the master node in parallel or cascading to the reference circuit of each slave node to be synchronized using network cables, optical fibers or coaxial cables.

[0066] The fifth step is to achieve time-frequency synchronization of the entire distributed network and generate corresponding functional codes / instructions by the control server for the effect or function to be controlled, such as achieving a specific beam bias, or amplitude attenuation of scattered waves, or conversion of reflected polarization, i.e., the corresponding codes required for the array of each control component, based on the time-frequency synchronization of the entire distributed network.

[0067] In the sixth step, the control server further specifies the corresponding code / instructions and the execution time.

[0068] Step 7: The control server sends code / instructions.

[0069] Step 8: Forward the code / instructions to each control component node through network routing.

[0070] In the ninth step, each control component node in the network receives the code / instruction and parses the instruction.

[0071] In the tenth step, each control component node waits until the designated execution time.

[0072] In the eleventh step, when the execution time arrives, each control component node executes the corresponding code / instruction, that is, the corresponding code is configured for the array of each control component to drive the working state of each active control device on the array; then according to the application requirements or function updates, a new array control mode is implemented, such as changing from amplitude domain control to phase domain control, or changing the deflection angle of the scattered wave from one direction to another, or performing periodic changes in the amplitude of the scattered wave in the time domain, etc., and then returning to the fifth step, the control server generates a new function code / instruction.

[0073] Not generally, not all application scenarios require the distributed control blocks to work synchronously and collaboratively. For example, in some scenarios, passive detection, signal relay or forwarding, or active information confrontation, etc., asynchronous collaboration can meet the functions and effects of the corresponding scenarios, that is, the control component nodes within the distributed control block receive the coding instructions, that is, independently execute the coding instructions, and have no connection with other control component nodes. Figure 8 As shown, it is a method flow of asynchronous coordination of distributed microwave millimeter wave electromagnetic characteristic control devices:

[0074] First, the entire distributed control network is initialized, and steps such as network learning, architecture topology analysis, and Mac address resolution are performed.

[0075] The second step is to locate the network coordinates of the nodes according to the architecture of the resolved distributed regulatory network.

[0076] In the third step, the control server generates corresponding function codes / instructions for the effects or functions to be controlled, that is, the corresponding codes required for the array surfaces of each control component.

[0077] The fourth step is to control the server to send code / instructions.

[0078] The fifth step is to forward the code / instruction to each control component node through network routing, that is, to configure the corresponding code for the array surface of each control component.

[0079] In the sixth step, each control component node in the network receives the code / instruction and parses the instruction.

[0080] In the seventh step, each control component node executes the corresponding code / instruction; then according to the application requirements or function updates, in order to achieve different control effects or control functions, it returns to the fifth step, and the control server generates new function codes / instructions.

[0081] Without loss of generality, the above-mentioned distributed microwave millimeter wave electromagnetic characteristics control device can have the following applications.

[0082] The application field of the distributed microwave millimeter wave electromagnetic characteristic control device composed of the above characteristics can be used as a scattering adjustment surface in certain frequency bands or at certain times to reduce or enhance the RCS of the microwave millimeter wave electromagnetic characteristic control device.

[0083] The application field of the distributed microwave millimeter wave electromagnetic characteristic control device composed of the above characteristics can constitute an intelligent skin with electromagnetic control function. On the one hand, it can be used as an electromagnetic sensor in certain frequency bands or at certain times to passively detect, process and transmit signals; on the other hand, it can also be used as an active detection and information confrontation device in certain frequency bands or at certain times.

[0084] The application field of the distributed microwave millimeter wave electromagnetic characteristic control device composed of the above characteristics can be constructed as a relay node for communication transmission in certain frequency bands or at certain times, forwarding the signal of one end communication node to expand the network transmission distance or perform obstacle-circumventing communication; on the other hand, it can be used as a scattering beam control application in certain frequency bands or at certain times to optimize the transmission network.

[0085] The above descriptions are only some embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for controlling the electromagnetic characteristics of distributed microwave and millimeter waves, characterized in that: The structure of the device is as follows: The device includes at least one control server and at least one distributed electromagnetic property control block; Each distributed electromagnetic characteristic control block includes at least one electromagnetic characteristic control component; Each electromagnetic characteristic control component includes a functional array based on information metamaterials, a driving module, and a control module. The driving module provides the required working voltage or current for the active devices on the functional array, and the control module provides control logic for the encoding of the functional array by regulating the corresponding working voltage or current value of the driving module; the functional array of the information metamaterial is composed of M×N periodically arranged artificial electromagnetic structural units; The control server is connected to the distributed electromagnetic characteristic control block via a network cable, optical fiber, or cable arrangement; The electromagnetic characteristic control components in the distributed electromagnetic characteristic control block are connected by network cables, optical fibers, or wiring; Functional arrays based on information metamaterials can regulate electromagnetic fields / waves in at least one electromagnetic physical domain; The distributed electromagnetic characteristic control block includes at least one electromagnetic characteristic control component, and the electromagnetic characteristic control components are connected in the form of any one or more hybrid networking forms such as tree, star, ring, and daisy chain.

2. The device for controlling the electromagnetic characteristics of distributed microwave and millimeter waves according to claim 1, characterized in that: The functional array based on information metamaterials can regulate the electromagnetic field or electromagnetic wave in any physical domain, such as amplitude, phase, polarization, or frequency, or can perform comprehensive regulation of multiple physical domains simultaneously.

3. The device for controlling the electromagnetic characteristics of distributed microwave and millimeter waves according to claim 1, characterized in that: A control gateway is provided between the control server and the distributed electromagnetic characteristic control block.

4. The collaborative method implemented by the distributed microwave and millimeter wave electromagnetic characteristic control device according to claims 1-3 is characterized in that: The method comprises the following steps: (1) establishing a distributed network based on the expansion of the control block by a control server and at least one electromagnetic characteristic control component; (2) Perform topological learning on the distributed network and locate the nodes of the electromagnetic characteristic control components; (3) The control server generates corresponding function codes / instructions and sends them to each electromagnetic characteristic control component; (4) The electromagnetic characteristic control components communicate and collaborate with each other through agreed protocols to execute corresponding functional codes / instructions.

5. The collaborative method implemented by the distributed microwave and millimeter wave electromagnetic characteristic control device according to claim 4 is characterized in that: The protocol is a private protocol or a public protocol.

6. The collaborative method implemented by the distributed microwave millimeter wave electromagnetic characteristic control device according to claim 4 or 5, characterized in that: The collaboration is synchronous collaboration or asynchronous collaboration.

7. The collaborative method implemented by the distributed microwave millimeter wave electromagnetic characteristic control device according to claim 4 or 5, characterized in that: If a public protocol is used for collaboration and communication, protocol conversion is performed through the control gateway to convert the public protocol into a private protocol before collaboration and communication are carried out.

8. The collaborative method implemented by the distributed microwave and millimeter wave electromagnetic characteristic control device according to claim 4 is characterized in that: If synchronous collaboration is adopted, the distributed electromagnetic characteristic control components will perform time synchronization and clock frequency synchronization, and then execute the functional code / instruction at the specified time point.

9. The collaborative method implemented by the distributed microwave and millimeter wave electromagnetic characteristic control device according to claim 4, characterized in that: If asynchronous collaboration is adopted, the distributed electromagnetic feature control component will execute the function code / instruction after receiving the message, and will not be associated with other electromagnetic feature control components.

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