Switching rate adjustable telecommunication signal routing device based on coupled topological edge state

Abstract

The application discloses a switching rate adjustable electric signal routing device based on coupled topological edge states, and relates to the electronic information technical field.The electric signal routing device comprises an input port, a first output port, a second output port and a topological circuit module.The topological circuit module is composed of a first resonator subarray and a second resonator subarray which are connected by a third coupling element and have the same structure and topological edge states, so that the topological edge states of the two are coupled with each other to form symmetric and antisymmetric coupled topological edge states.The input port and the first output port are connected to positions of the topological edge states of the first resonator subarray, and the second output port is connected to a position of the topological edge state of the second resonator subarray.The function of switching signals to the first output port or the second output port at different switching rates is realized by adjusting the voltage of the excitation signal.The application has the advantages of simple structure, strong robustness based on the topological protection mechanism and no need of an additional control signal.

Description

Technical Field

[0001] This invention belongs to the field of electronic information technology, and specifically relates to an electrical signal routing device with adjustable switching rate based on coupled topology edge state. Background Technology

[0002] Electrical signal routing devices are one of the fundamental functional units for signal routing and system reconfiguration. Traditional electrical signal routing devices are widely used in communication, measurement, and control systems, and their performance directly affects the stability and reliability of the entire signal link. With the development of modern electronic systems towards higher frequencies, higher integration, and lower power consumption, higher demands are placed on the robustness of signal routing devices. Against this backdrop, exploring implementation methods for signal routing devices based on new physical mechanisms has become an important research direction for improving the overall performance of these devices.

[0003] Currently, the main technical means to improve the robustness of traditional electrical signal routing devices focus on two aspects: material optimization and circuit protection. At the material and process level, high-purity metals or advanced semiconductor materials are used, combined with precision photolithography, thin-film deposition, and packaging technologies to reduce defects and structural disorder introduced during manufacturing. At the circuit design level, additional electrostatic discharge protection, overvoltage protection, or electromagnetic shielding modules are typically introduced to enhance the device's resistance to external environmental interference.

[0004] However, the aforementioned existing technical solutions still have significant limitations. While methods based on material and process optimization can improve device consistency, they are highly dependent on manufacturing precision and material purity, leading to a significant increase in production costs. Furthermore, the complexity of process control makes it difficult to guarantee yield. In addition, relying on external protection circuits not only increases system complexity and size but also introduces additional parasitic parameters, power consumption, and potential interference, which may negatively impact high-frequency performance and response speed. More importantly, these methods do not fundamentally address the inherent sensitivity of the core functional units of electrical signal routing devices to defects and disturbances. Their robustness improvement faces a physical bottleneck, making it difficult to meet the application requirements of future high-performance, high-reliability integrated systems. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention provides an electrical signal routing device with adjustable switching rate based on coupled topology edge states. The technical problem to be solved by this invention is achieved through the following technical solution:

[0006] The present invention provides an electrical signal routing device with adjustable switching rate based on coupled topology edge state, comprising: an input port, a first output port, a second output port, and a topology circuit module;

[0007] The topology circuit module includes two identical resonator subarrays and a second resonator subarray with topological edge states; both the first resonator subarray and the second resonator subarray are one-dimensional array structures; the first resonator subarray and the second resonator subarray are connected by a third coupling element, so that the topological edge states of the two resonator subarrays are coupled to each other, forming symmetrically coupled topological edge states and antisymmetrically coupled topological edge states.

[0008] The input port is connected to the location of the topological edge state of the first resonator subarray and is used to input a square wave pulse excitation signal to the topology circuit module.

[0009] The first output port is connected to the topological edge state of the first resonator subarray, and the second output port is connected to the topological edge state of the second resonator subarray.

[0010] The switching rate of the adjustable switching rate electrical signal routing device is controlled by adjusting the voltage of the excitation signal, thereby controlling the topology circuit module to switch the signal to the first output port or the second output port at different switching rates.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The switching rate adjustable electrical signal routing device based on coupled topology edge state of the present invention utilizes the inherent topology protection characteristics of topology edge state, making the routing device performance highly insensitive to circuit component manufacturing errors, parameter drift and external environmental disturbances, thus significantly improving the working stability and reliability of the device.

[0013] 2. The adjustable switching rate electrical signal routing device based on coupled topology edge state of the present invention directly controls the channel switching rate by the excitation signal strength, eliminating the need for complex external control circuits and drive signals. This simplifies the overall system architecture, reduces the number of components, and helps to reduce manufacturing costs and system power consumption.

[0014] 3. The switching rate adjustable electrical signal routing device based on coupled topology edge state of the present invention has the excitation signal itself carrying control information, realizing the natural synchronization of signal transmission and routing control, avoiding problems such as control signal delay and interference in traditional schemes, and improving system response speed and signal integrity.

[0015] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a structural block diagram of an electrical signal routing device with adjustable switching rate based on coupled topology edge state provided in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of an electrical signal routing device with adjustable switching rate based on coupled topology edge state provided in an embodiment of the present invention;

[0018] Figure 3 These are power-frequency relationship diagrams and voltage distribution diagrams of the edge states of symmetric and antisymmetric coupled topologies provided in embodiments of the present invention.

[0019] Figure 4 This is a diagram showing different channel switching rate characteristics under different excitation signal voltages provided in the embodiments of the present invention;

[0020] Figure 5 It is a power-frequency relationship diagram of the edge states of symmetric and antisymmetric coupled topologies after errors are introduced by the coupling element.

[0021] Icons: 10-First resonator subarray; 20-Second resonator subarray; 30-Unit cell; 40-Nonlinear resonator; 50-First coupling element; 60-Second coupling element; 70-Third coupling element; A-First node; B-Second node; 1-Input port; 2-First output port; 3-Second output port. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following describes in detail, with reference to the accompanying drawings and specific embodiments, a switching rate adjustable electrical signal routing device based on coupled topology edge state proposed in accordance with the present invention.

[0023] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of specific embodiments in conjunction with the accompanying drawings. Through the description of the specific embodiments, a more in-depth and concrete understanding can be gained of the technical means and effects adopted by the present invention to achieve its intended purpose. However, the accompanying drawings are for reference and illustration only and are not intended to limit the technical solutions of the present invention.

[0024] This invention provides an electrical signal routing device with adjustable switching rate based on coupled topology edge state. Please refer to [link to relevant documentation]. Figure 1 , Figure 1 This is a structural block diagram of an electrical signal routing device with adjustable switching rate based on coupled topology edge states, provided in an embodiment of the present invention. Figure 1As shown, the switching rate adjustable electrical signal routing device based on coupled topology edge state in this embodiment includes an input port 1, a first output port 2, a second output port 3, and a topology circuit module.

[0025] In this embodiment, the topology circuit module includes two identical resonator subarrays 10 and 20 with topological edge states. Both the first resonator subarray 10 and the second resonator subarray 20 are one-dimensional array structures. The first resonator subarray 10 and the second resonator subarray 20 are connected by a third coupling element 70, so that the topological edge states of the two resonator subarrays are coupled to each other, forming symmetrically coupled topological edge states and antisymmetrically coupled topological edge states. Input port 1 is connected to the location of the topological edge state of the first resonator subarray 10 and is used to input an excitation signal to the topology circuit module. The excitation signal can be a square wave pulse. The first output port 2 is connected to the location of the topological edge state of the first resonator subarray 10, and the second output port 3 is connected to the location of the topological edge state of the second resonator subarray 20. By adjusting the voltage of the excitation signal, the switching rate of the adjustable switching rate electrical signal routing device is controlled, and the topology circuit module is controlled to switch the signal to the first output port 2 or the second output port 3 at different switching rates.

[0026] In this embodiment, the change in excitation signal voltage is used to regulate the nonlinear response of the topology circuit module, thereby adjusting the frequency difference between the edge states of the symmetric coupled topology and the edge states of the antisymmetric coupled topology obtained by decomposing the excitation signal, so that the signal switches between the first output port 2 and the second output port 3 at different rates.

[0027] In this embodiment, the circuit topology of each resonator subarray is constructed based on the Su-Schrieffer-Heeger model.

[0028] Specifically, each resonator subarray includes multiple series-connected cells 30, and adjacent cells 30 are connected by a second coupling element 60; each cell 30 includes a first node A and a second node B, which are connected by a first coupling element 50, and a nonlinear resonator 40 is connected to the first node A and the second node B, that is, the nonlinear resonator 40 is connected between the node and the circuit common ground.

[0029] Optionally, the first coupling element 50, the second coupling element 60, and the third coupling element 70 are capacitors or inductors.

[0030] In this embodiment, the coupling strength of the first coupling element 50 is less than the coupling strength of the second coupling element 60. The coupling strength of the third coupling element 70 is less than the coupling strength of the first coupling element 50.

[0031] It should be noted that the coupling strength is related to the type of coupling element used. When the coupling element is a capacitor, the coupling strength is proportional to the capacitance value. That is, the smaller the capacitance value, the larger the capacitive reactance, and the weaker the coupling. Therefore, to achieve the coupling strength relationship between the first coupling element 50 and the second coupling element 60, the capacitance values of C1 (the first coupling element) and C2 (the second coupling element) need to satisfy C1 < C2. When the coupling element is an inductor, the coupling strength is inversely proportional to the inductance value. That is, the smaller the inductance value, the smaller the inductive reactance, and the stronger the coupling. Therefore, to achieve the coupling strength relationship between the first coupling element 50 and the second coupling element 60, the inductance values of L1 (the first coupling element) and L2 (the second coupling element) need to satisfy L1 > L2.

[0032] Similarly, the coupling strength requirement of the third coupling element is the weakest. If the third coupling element 70 uses a capacitor C3, its capacitance value should be the smallest, that is, C3 < C1 < C2. If the third coupling element 70 uses an inductor L3, its inductance value should be the largest, that is, L3 > L1 > L2.

[0033] In this embodiment, the coupling strength of the third coupling element 70 is designed to be less than that of the first coupling element 50. This connection enables the topological edge states of the first resonator sub-array 10 and the second resonator sub-array 20 to be coupled to each other, thereby forming the symmetric coupling topological edge state and the anti-symmetric coupling topological edge state of the overall system.

[0034] In this embodiment, the non-linear resonator 40 includes an inductor, a capacitor, and a plurality of non-linear elements connected in parallel.

[0035] In this embodiment, the core function of the non-linear element is to provide a voltage-dependent capacitance value, thereby introducing the non-linearity required by the system. Optionally, the non-linear element can be a common-cathode varactor diode, which does not require an external DC bias voltage, simplifying the circuit.

[0036] It can be understood that the non-linear element of the present invention is not limited to this, and other elements capable of providing a similar non-linear response are also applicable, such as an independent varactor diode, a MOS (metal-oxide-semiconductor) varactor diode with a significant C-V (capacitance-voltage) characteristic, or a capacitor based on a ferroelectric material with non-linear dielectric properties, etc.

[0037] In this embodiment, the edge nodes in the unit cell 30 of the first resonator sub-array 10 and the second resonator sub-array 20 that are far from the third coupling element 70 are grounded through a grounding capacitor C. This edge node is the outermost node of the resonator sub-array.

[0038] In this embodiment, input port 1 is connected to an edge node in cell 30 of the first resonator subarray 10, near the third coupling element 70, via a current-limiting resistor R. The resistance value of the current-limiting resistor is much greater than the impedance to ground of the edge node in cell 30.

[0039] In this embodiment, the node to which the first output port 2 is connected and the node to which the current limiting resistor R is connected to the first resonator subarray 10 are the same node; the second output port 3 is connected to the edge node in the cell 30 of the second resonator subarray 20 near the third coupling element 70.

[0040] Connecting the first output port 2 to the current-limiting resistor at a common node enables single-port excitation and detection, greatly simplifying the circuit layout. This node, serving as the detection point for the first channel, directly reflects the internal energy distribution of the system through its voltage state. This design allows the output switching rate of either the first output port 2 or the second output port 3 to directly correspond to changes in the input signal strength, representing the most intuitive and efficient circuit implementation of the core principle that signal strength controls the switching rate.

[0041] It is understood that the circuit topology of the topology circuit module in this embodiment is a one-dimensional chain structure.

[0042] The working principle of the adjustable switching rate electrical signal routing device based on coupled topology edge states in this invention is based on the nonlinear control of coupled topology edge states. When excitation signals of different voltages are injected from input port 1, the nonlinear components in the system cause the resonant frequency of the resonator to change with the signal amplitude. The strength of this nonlinear effect is directly related to the input signal voltage. Changes in the input signal voltage will change the relative frequency relationship between the symmetrical and antisymmetric modes excited by the system. Specifically, when the input signal strength is low, the nonlinear effect is weak, resulting in a larger frequency difference between the symmetrical and antisymmetric coupled topology edge states obtained from the excitation signal decomposition, and a faster signal switching rate; when the input signal strength is high, the nonlinear effect is enhanced, the frequency difference between the symmetrical and antisymmetric coupled topology edge states obtained from the excitation signal decomposition is small, and the signal switching rate is slower. Throughout the process, the switching rate is completely controlled by the strength of the excitation signal itself, without the need for an additional independent control signal.

[0043] Furthermore, with Figure 2 Taking the specific circuit parameters shown as an example, the technical effects of the present invention, namely the adjustable switching rate electrical signal routing device based on coupled topology edge state, are further illustrated. Figure 2 This is a schematic diagram of an electrical signal routing device with adjustable switching rate based on coupled topology edge state provided in an embodiment of the present invention.

[0044] Please see Figure 2The specific parameters of the switching rate adjustable electrical signal routing device based on coupled topology edge state in this embodiment are as follows: Each of the two resonator subarrays contains N=12 cells. In the nonlinear resonator at each node, the inductance Lg is 15 microhenries, the capacitance Cg is 4.7 nanofarads, and 30 common-cathode varactor diodes Cv are connected in parallel as nonlinear elements. All three coupling elements are capacitors, and the capacitance values ​​of the first, second, and third coupling elements are: C1 is 180 picofarads, C2 is 560 picofarads, and C3 is 69 picofarads, respectively. The current-limiting resistor R is 10 kΩ. The grounding capacitor C has the same capacitance value as C2, which is 560 picofarads. Input port 1 is connected to the left subarray, i.e., the second node B at the rightmost end of the first resonator subarray 10, via the current-limiting resistor R. The first output port 2 is led out from the same node, and the second output port 3 is led out from the right subarray, i.e., the first node A at the leftmost end of the second resonator subarray 20.

[0045] To quantize the frequency range of the topological edge states, the system power is defined as follows: The power of each subarray is expressed as follows:

[0046] ;

[0047] in, Indicates the left and right subarrays. Indicates the node type. For the corresponding subarray number The voltage at each unit cell node. In this definition, N is the total number of unit cells in the subarray, taken as N = 12. Numbering the unit cell, for Figure 2 The illustrated switching rate adjustable electrical signal routing device based on coupled topology edge states defines the cell numbering in the left subarray. They are respectively - N, -N+1, -N+2, ..., -2 - 1. Define the cell numbering in the right subarray. The numbers are 1, 2, ..., N-2, N-1, and N, respectively.

[0048] Please see Figure 3 , Figure 3 These are power-frequency relationship diagrams and voltage distribution diagrams of the edge states of symmetric and antisymmetric coupled topologies provided in embodiments of the present invention. Figure 3 Figure (a) shows the power-frequency relationship of the edge states of the symmetric and antisymmetric coupled topologies. The solid and dashed lines in the figure represent the edge states of the symmetric and antisymmetric coupled topologies, respectively. As can be seen from Figure (a), within a certain mode power range, the two modes are clearly distinguishable. As the mode power increases, i.e., the nonlinear effect intensifies, the system always exhibits clearly distinguishable symmetric and antisymmetric modes, proving the existence and stability of the coupled topological edge states. Figure 3Figures (b) and (c) show the voltage distribution of the symmetric and antisymmetric modes at a frequency of 504 kHz, respectively.

[0049] Please see Figure 4 , Figure 4 These are channel switching rate characteristic diagrams under different excitation signal voltages provided in the embodiments of the present invention. Among them, (a) is the channel switching time-domain characteristic diagram when the excitation signal voltage is 2V, and (b) is the channel switching time-domain characteristic diagram when the excitation signal voltage is 5V. Figure 4 The channel switching effect is visually demonstrated. The excitation signal is a unipolar square wave pulse signal. In this embodiment, the square wave period is selected as 200 microseconds and the pulse width as 10 nanoseconds; the low level of the square wave pulse signal is 0V, and the high level is UV. For convenience, the excitation signal voltage or input voltage mentioned below specifically refers to the high-level amplitude U. The excitation signal is decomposed into symmetrically coupled topological edge states and antisymmetricly coupled topological edge states with different frequencies. As the excitation signal voltage increases (i.e., the nonlinear effect intensifies), the frequency difference between the decomposed symmetrically coupled topological edge states and antisymmetricly coupled topological edge states decreases, causing the signal switching rate between the first output port 2 and the second output port 3 to slow down, thus allowing the system to exhibit different channel switching rates. When the input voltage is 2V (corresponding to a lower input voltage), such as Figure 4 As shown in Figure a, the energy oscillates periodically at a higher frequency at the first output port 2 and the second output port 3, resulting in a faster switching rate for the signal routing device. When the input voltage is increased to 5V (corresponding to a higher input voltage), as... Figure 4 As shown in Figure b, the energy oscillates periodically at a lower frequency, resulting in a slower switching rate for the signal routing device. This verifies that stable and reliable control of the channel switching rate can be achieved simply by adjusting the strength of the input excitation signal.

[0050] Furthermore, tolerance tests were conducted to verify the robustness of the invention. Please refer to [link / reference]. Figure 5 , Figure 5 This is a power-frequency relationship diagram of the edge states of symmetric and antisymmetric coupled topologies after errors are introduced by the coupling elements. For example... Figure 5 As shown, when the critical coupling capacitors C1, C2, and C3 are introduced with a random error of ±2% based on their nominal values ​​(simulating five different error samples), the edge states of the symmetrically coupled topology and the antisymmetricly coupled topology remain clearly distinguishable, and the channel switching function of the signal routing device is maintained. This indicates that, based on the topology protection mechanism, the adjustable switching rate electrical signal routing device of the present invention has a very high tolerance for component parameter errors, significantly reducing the stringent requirements on manufacturing processes and environmental stability.

[0051] This invention relates to an adjustable switching rate electrical signal routing device based on coupled topology edge states. Utilizing the inherent topology protection characteristics of topology edge states, the device's performance is highly insensitive to manufacturing errors in circuit components, parameter drift, and external environmental disturbances, significantly improving its operational stability and reliability. The channel switching rate regulation function of the signal routing device is directly controlled by the excitation signal voltage, eliminating the need for complex external control circuits and drive signals. This simplifies the overall system architecture, reduces the number of components, and helps lower manufacturing costs and system power consumption. The excitation signal itself can serve as the control signal, achieving natural synchronization between signal transmission and routing control, avoiding problems such as control signal delay and interference in traditional solutions, and improving system response speed and signal integrity.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not expressly listed. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device comprising said element. Terms such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect. The orientations or positional relationships indicated by terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0054] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A switching rate adjustable electrical signal routing device based on coupled topology edge states, characterized in that, include: Input port, first output port, second output port, and topology circuit module; The topology circuit module includes two identical resonator subarrays and a second resonator subarray with topological edge states; both the first resonator subarray and the second resonator subarray are one-dimensional array structures. The first resonator subarray and the second resonator subarray are connected by a third coupling element, so that the topological edge states of the two resonator subarrays are coupled to each other, forming symmetrical coupled topological edge states and antisymmetric coupled topological edge states; The input port is connected to the location of the topological edge state of the first resonator subarray and is used to input an excitation signal to the topology circuit module; The first output port is connected to the topological edge state of the first resonator subarray, and the second output port is connected to the topological edge state of the second resonator subarray. The switching rate of the adjustable switching rate electrical signal routing device is controlled by adjusting the voltage of the excitation signal, thereby controlling the topology circuit module to switch the signal to the first output port or the second output port at different switching rates.

2. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 1, characterized in that, Each resonator subarray comprises multiple cells connected in series, with adjacent cells connected by a second coupling element; Each unit cell includes a first node and a second node, which are connected by a first coupling element, and a nonlinear resonator is connected to the first node and the second node.

3. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 2, characterized in that, The coupling strength of the first coupling element is less than that of the second coupling element; the coupling strength of the third coupling element is less than that of the first coupling element.

4. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 2, characterized in that, The first coupling element, the second coupling element, and the third coupling element are capacitors or inductors.

5. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 2, characterized in that, The edge nodes in the cells of the first resonator subarray and the second resonator subarray that are far from the third coupling element are grounded through grounding capacitors.

6. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 2, characterized in that, The input port is connected via a current-limiting resistor to an edge node in the cell of the first resonator subarray that is close to the third coupling element.

7. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 6, characterized in that, The node where the first output port is connected to the first resonator subarray and the node where the current-limiting resistor is connected to the first resonator subarray are the same node; The second output port is connected to an edge node in the cell of the second resonator subarray that is close to the third coupling element.

8. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 2, characterized in that, The nonlinear resonator includes parallel inductors, capacitors, and multiple nonlinear elements.

9. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 8, characterized in that, The nonlinear element is a common-cathode varactor diode.

10. The switching rate adjustable electrical signal routing device based on coupled topology edge state according to claim 1, characterized in that, The circuit topology of each resonator subarray is constructed based on the Su-Schrieffer-Heeger model; the circuit topology of the topology circuit module is a one-dimensional chain structure.

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