Method and device for improving microwave transmission frequency

Abstract

The invention discloses a microwave transmission frequency increasing method and device, and the method comprises the following steps: collecting basic parameters of a microwave transmission line, calculating the initial wavelength of the microwave transmission line, and carrying out the standing wave analysis; designing a multi-mode interference device structure according to the initial wavelength, calculating a coupling coefficient between waveguides of the multi-mode interference device, and optimizing the waveguide layout according to the coupling coefficient; improving the microwave transmission frequency of the microwave signal optimized by the multimode interference device by using a frequency modulation algorithm; a matched impedance transformer is designed to improve the transmission power in the microwave signal transmission process; and the feedback control module monitors the bit error rate of the microwave transmission signal in real time, and adjusts the multimode interference device and the impedance converter according to the bit error rate. The multi-mode interference device and the impedance transformer are designed, and the parameters of the multi-mode interference device and the impedance transformer are adjusted in real time, so that the transmission frequency of microwave transmission is improved.

Description

Technical Field

[0001] The present invention relates to the field of data processing, and in particular to a method and device for increasing microwave transmission frequency. Background Art

[0002] With the rapid development of information technology, the demand for communication capacity is growing exponentially. Higher microwave transmission frequencies mean that wider spectrum resources can be utilized, thereby achieving greater data transmission rates to meet the growing demand for communication bandwidth for services such as high-definition video, the Internet of Things, and big data. Spectrum resources in low-frequency bands are becoming increasingly crowded and are in short supply. In order to alleviate the problem of tight spectrum resources, it is necessary to expand to higher microwave frequency bands and develop and utilize high-frequency spectrum resources that have not yet been fully utilized to improve spectrum utilization. In view of this, the present invention proposes a method and device for increasing microwave transmission frequency. Summary of the invention

[0003] The present invention provides a method for increasing microwave transmission frequency, comprising: S10, collecting basic parameters of the microwave transmission line, calculating the initial wavelength of the microwave transmission line and performing standing wave analysis; S20, designing a multimode interferometer structure according to the initial wavelength, calculating the coupling coefficient between the multimode interferometer waveguides and optimizing the waveguide layout according to the coupling coefficient; S30, using a frequency modulation algorithm to increase the microwave transmission frequency of the microwave signal optimized by the multi-mode interferometer; S40. Design a matching impedance converter to improve the transmission power during microwave signal transmission; S50, the feedback control module monitors the bit error rate of the microwave transmission signal in real time, and adjusts the multi-mode interferometer and the impedance converter according to the bit error rate.

[0004] As described above, a method for increasing microwave transmission frequency is provided, wherein basic parameters of the microwave transmission line are collected, including line length, material dielectric constant, transmission line characteristic impedance, load impedance, and initial frequency.

[0005] A method for increasing microwave transmission frequency as described above, wherein the structural parameters of the multimode interferometer include waveguide width, waveguide height, and waveguide length. The waveguide width of the multimode interferometer is determined based on the microwave frequency to be transmitted, the number of desired modes, and the transmission power limit; the waveguide height is determined based on the application scenario of the multimode interferometer, the synergistic relationship with the waveguide width, and the influence of material properties; and the waveguide length is determined by accurately calculating the microwave propagation constants of different modes.

[0006] A method for increasing the microwave transmission frequency as described above, wherein there is a coupling coefficient between adjacent waveguides, and the coupling strength is controlled by adjusting the waveguide spacing. For the waveguides corresponding to the useful signal mode to be enhanced, they are placed in a position close to each other and can achieve the best coupling, and for the waveguides corresponding to the noise and interference signal modes, they are placed away from the useful signal waveguides in layout, or in a specific relative position to reduce their coupling with the useful signal mode.

[0007] A method for increasing microwave transmission frequency as described above, wherein the modulation index is a core parameter in the frequency modulation algorithm to ensure that microwave signals can maintain high-quality transmission in a complex and changeable transmission environment.

[0008] A method for increasing the microwave transmission frequency as described above, wherein a matching impedance converter is designed for the microwave signal after the frequency is increased by the frequency modulation algorithm to solve the matching problem of the microwave signal between transmission lines with different impedances, thereby reducing signal reflection and improving transmission efficiency.

[0009] In the above-mentioned method for increasing the microwave transmission frequency, a special bit error rate tester is used to test the bit error rate, and a feedback control module adjusts the parameters of the multimode interferometer and the impedance converter according to the bit error rate of the microwave transmission signal.

[0010] The present invention also provides a system for increasing the microwave transmission frequency, comprising: Acquisition module: used to collect basic parameters of microwave transmission lines, calculate the initial wavelength of microwave transmission lines and perform standing wave analysis; Multimode interferometer module: designs the multimode interferometer structure according to the initial wavelength, calculates the coupling coefficient between the multimode interferometer waveguides and optimizes the waveguide layout according to the coupling coefficient; Frequency modulation module: Use frequency modulation algorithm to increase the microwave transmission frequency of microwave signals optimized by multi-mode interferometer; Impedance converter module: Design matching impedance converter to improve the transmission power during microwave signal transmission; Adjustment and optimization module: The feedback control module monitors the bit error rate of the microwave transmission signal in real time and adjusts the multi-mode interferometer and impedance converter according to the bit error rate.

[0011] The beneficial effects achieved by the present invention are as follows: the present invention improves the transmission frequency of microwave transmission by designing a multimode interferometer and an impedance converter and adjusting the parameters of the multimode interferometer and the impedance converter in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0013] Figure 1 This is a flow chart of a method for increasing microwave transmission frequency provided in Example 1 of the present application.

[0014] Figure 2 This is a schematic diagram of a microwave transmission frequency enhancement system provided in Example 2 of the present application. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0016] Embodiment 1 like Figure 1 As shown, Embodiment 1 of the present application provides a method for increasing microwave transmission frequency, comprising: S10, collecting basic parameters of the microwave transmission line, calculating the initial wavelength of the microwave transmission line and performing standing wave analysis.

[0017] Collect the basic parameters and line materials of the current microwave transmission line. The basic parameters include line length, material dielectric constant, transmission line characteristic impedance, load impedance, and initial frequency. Accurately measure line length , the line length measurement needs to use a high-precision laser rangefinder or a professional cable length tester. Through high-precision measuring instruments, the measurement error is ensured to be within a very small range. During the measurement process, multiple measurements are required to take the average value to reduce the measurement error and ensure that the line length measurement accuracy reaches the millimeter level or even higher. Material dielectric constant The acquisition of dielectric constant depends on advanced dielectric constant measurement equipment. The equipment is based on the resonant cavity method or transmission line method. It performs multiple measurements at different locations, temperatures, humidity and other environmental conditions to obtain the average value, and conducts comprehensive analysis in combination with the material characteristic curve to obtain the accurate material dielectric constant. The transmission line characteristic impedance is determined by the geometric structure and material properties of the transmission line, and the load impedance depends on the electrical characteristics of the load. Initial frequency It can be directly read from the parameter setting interface of the microwave emission source or the monitoring system of related equipment. The frequency is the frequency value of the microwave transmission system in the current working state.

[0018] By formula Calculate the initial microwave wavelength L, represents the propagation speed of microwaves in the medium, where c is the speed of light in a vacuum, is the dielectric constant of the material, Indicates the initial frequency.

[0019] By analyzing the standing wave conditions in existing transmission lines, the severity of signal interference can be intuitively judged, which is reflected by the standing wave ratio. The specific formula is: , SWR stands for standing wave ratio, Represents the reflection coefficient in transmission line theory The reflection coefficient reflects the degree of reflection of microwave signals when they encounter impedance mismatch during transmission. Calculate, where represents the characteristic impedance of the transmission line, Indicates load impedance. When the standing wave ratio is close to 1, it indicates that the impedance matching in the transmission line is good, the signal transmission is close to the ideal state, and the interference is minimal; when the standing wave ratio is much greater than 1, it means that there is a large impedance mismatch, and the signal will produce strong reflections during the transmission process, resulting in serious interference, affecting the transmission quality and efficiency of the microwave signal. According to the value of the standing wave ratio, it provides an important reference for the measures to optimize the transmission of microwave signals in the subsequent steps.

[0020] S20. Design a multimode interferometer structure according to the initial wavelength, calculate the coupling coefficient between the multimode interferometer waveguides, and optimize the waveguide layout according to the coupling coefficient.

[0021] When microwaves propagate in a multimode waveguide, different modes have different electric and magnetic field distributions and propagation constants. When these modes propagate in the waveguide and meet, interference occurs. Constructive interference will enhance the signal strength, while destructive interference will weaken the signal. Through a multimode interferometer, the useful microwave mode reaches the constructive interference condition at a specific location, and the noise and interference microwave mode reaches the destructive interference condition, thereby optimizing the microwave transmission frequency.

[0022] The structural parameters of the multi-mode interferometer are designed based on the initial wavelength L calculated in step S10.

[0023] S21. Determine the waveguide width of the multimode interferometer.

[0024] The waveguide width a of the multimode interferometer is determined based on the microwave frequency to be transmitted, the desired number of modes, and the transmission power limit. The higher the microwave frequency, the shorter the wavelength of the electromagnetic wave. In order to ensure that the waveguide can support the required number of modes and effectively transmit microwave signals, the waveguide width needs to be reduced accordingly; through the formula Calculate the number of modes N required in the multimode interferometer, It represents the effective mode field wavelength of the multimode interferometer. The number of modes is not a simple integer. In actual design, it is necessary to consider the process feasibility for appropriate rounding and optimization. When the microwave signal power is large, in order to avoid problems such as breakdown caused by excessive electric field strength inside the waveguide, it is necessary to appropriately increase the waveguide width to reduce the power density per unit area.

[0025] Effective mode field wavelength of multimode interferometer It can be approximately calculated by the following formula: ,in, is the free space wavelength, is the refractive index of the waveguide core, is the cladding refractive index, is the derivative of the core refractive index with respect to wavelength, is the derivative of the cladding refractive index with respect to wavelength, which can be obtained by fitting the experimental data of the material dispersion characteristics.

[0026] S22. Determine the waveguide height of the multimode interferometer.

[0027] The waveguide height b is determined based on the application scenario of the multimode interferometer, the synergistic relationship with the waveguide width, and the influence of material properties. There is a certain synergistic relationship between the waveguide height and width, and they jointly affect the mode characteristics of the waveguide. Under the premise of ensuring that the waveguide can support the required mode, the propagation constant and field distribution of the mode can be optimized by adjusting the ratio of height to width. The material properties of the waveguide will also affect the determination of the waveguide height. Different materials have different mechanical and electrical properties. These properties will change the propagation characteristics of microwaves in the waveguide, thereby affecting the distribution and interference effect of the mode.

[0028] S23. Determine the waveguide length of the multimode interferometer.

[0029] The waveguide length depends on the accurate calculation of the microwave propagation constants of different modes. The calculation formula of the microwave propagation constant is: , represents the angular frequency, represents the magnetic permeability of the medium filling the waveguide, represents the dielectric constant of the medium filled in the waveguide, m and n represent the mode index, m corresponds to the half-wave number in the x direction, n corresponds to the half-wave number in the y direction, a represents the width of the waveguide, and b represents the height of the waveguide.

[0030] Assume there are N modes, whose propagation constants are To achieve the expected interference condition, the phase difference between different modes or multiple mode combinations needs to be determined. If it is expected that some modes will achieve constructive interference together to enhance the useful signal, the phase difference of these modes at the output end of the waveguide needs to satisfy , , Z represents an integer set. For two modes i and j, their propagation distance The phase difference after , the propagation distance is the waveguide length. According to the desired interference effect, multiple equations about the waveguide length H are established. If a specific phase difference relationship between M groups of different modes is to be achieved, then , , ..., , taking the waveguide length H as the optimization variable, a fitness function is defined to measure the closeness of the phase difference between each mode and the expected phase difference under different H values ​​to solve the equation. The fitness function is , is a pre-set weight coefficient that reflects the importance of different interference combinations. is the desired phase difference, It means that when the waveguide length is H, the mode in the kth interference combination and Mode The phase difference between each group of modes is brought into the fitness function to calculate the fitness value between each mode. The closer the fitness value is, the better. , which means that the waveguide length corresponding to the modes is closer to satisfying the multi-mode interference condition. Thus, the waveguide length of the multi-mode interferometer is determined.

[0031] S24. Calculate the coupling coefficient between adjacent waveguides and optimize the waveguide layout.

[0032] There is a coupling coefficient between adjacent waveguides, which determines the degree of energy exchange between modes. The coupling strength is controlled by adjusting the waveguide spacing. For the waveguides corresponding to the useful signal mode that is expected to be enhanced, they are placed close to each other and in a position where they can achieve optimal coupling to promote energy superposition; for the waveguides corresponding to the noise and interference signal modes, they are placed away from the useful signal waveguides in the layout, or in a specific relative position to reduce their coupling with the useful signal mode. The coupling coefficient k between adjacent waveguides is given by the formula Calculate, where , is the electric field vector of different modes in the waveguide, , is the corresponding magnetic field vector, d represents the spacing between waveguides, and S is the cross-sectional area of ​​the waveguide. According to the calculated coupling coefficient k, the spacing between waveguides and the length of the waveguide are reasonably adjusted. The relationship between the waveguide spacing d and the coupling coefficient k can be determined by numerical simulation or empirical formula, which can be approximately expressed as ,in and is a constant related to the material and waveguide structure. By continuously optimizing the waveguide layout parameters, microwave signals of different modes can achieve the best interference effect in the multimode interferometer, reduce interference between signals, and improve signal transmission quality.

[0033] Sensors are integrated into the multimode interferometer to monitor the power, frequency, phase and other parameters of the microwave signal in real time. The sensors transmit the monitoring data to the feedback control module, which analyzes and processes the data according to the preset algorithm and then automatically adjusts the parameters of the interferometer.

[0034] S30. Use a frequency modulation algorithm to increase the microwave transmission frequency of the microwave signal optimized by the multi-mode interferometer.

[0035] The modulation index in the frequency modulation algorithm is the core parameter to ensure that microwave signals can maintain high-quality transmission in complex and changeable transmission environments. The modulation index o is dynamically adjusted based on the real-time monitored microwave signal power P and the transmission environment noise power g. A professional spectrum analyzer is used to conduct a comprehensive spectrum analysis of the transmission environment noise. The spectrum analyzer can accurately measure the noise power spectrum density. , which reflects the distribution of noise at different frequencies. The noise power spectrum density is comprehensively analyzed by a professional spectrum analyzer, and the noise power is obtained by integrating it over the entire transmission bandwidth B. .

[0036] In a noisy channel, combining the channel capacity C and the target bit error rate Determine the target signal-to-noise ratio , channel capacity , where B represents the channel bandwidth and P represents the signal power. The power P of the microwave signal can be monitored in real time by a high-precision power sensor. represents the noise power spectral density. Assuming the initial modulation index is , through the formula To adjust the modulation index, when the transmission environment noise increases, in order to ensure the target signal-to-noise ratio, the modulation index o will be adjusted accordingly to maintain the quality of the microwave signal. The microwave signal with the modulation index o dynamically adjusted is modulated by orthogonal frequency division multiplexing to divide the high-speed microwave data stream into multiple low-speed sub-data streams, each of which corresponds to a subcarrier. Number of subcarriers , B is the transmission bandwidth, Indicates the subcarrier spacing. For each subcarrier, adaptive modulation is performed according to the signal-to-noise ratio on the subcarrier. For subcarriers with higher signal-to-noise ratios, high-order modulation is used to increase the data transmission rate, and for subcarriers with lower signal-to-noise ratios, low-order modulation is used to ensure transmission reliability. Flexible adjustment of modulation methods on different subcarriers can fully utilize channel resources and improve overall transmission efficiency.

[0037] After modulating the sub-data stream on each subcarrier, the frequency domain signal is converted into a time domain signal through inverse fast Fourier transform. A cyclic prefix is ​​added to the time domain signal to eliminate inter-symbol interference. The length of the cyclic prefix is ​​determined according to the maximum delay spread of the transmission channel.

[0038] S40. Design a matching impedance converter to improve the transmission power during microwave signal transmission.

[0039] For microwave signals with increased frequency, designing a matching impedance transformer can solve the matching problem of microwave signals between transmission lines with different impedances, thereby reducing signal reflection and improving transmission efficiency. It is related to the geometric structure and material properties of the transmission line. For a common parallel two-conductor transmission line, the characteristic impedance can be expressed by the formula Calculate, where D is the distance between the two conductor centers, h is the conductor diameter, is the dielectric constant of the medium surrounding the transmission line. Load impedance Determined by the electrical characteristics of the load, for resistive loads, , R is the resistance value; for inductive load, , , is the microwave angular frequency after the increase, q is the inductance value; for capacitive load, , where u is the capacitance value. In complex actual circuits, the load impedance may be a combination of multiple components such as resistance, inductance, and capacitance. It is necessary to accurately calculate the load impedance through methods such as equivalent circuit analysis.

[0040] By formula Calculate the input impedance of the impedance transformer .in, represents the characteristic impedance of the transmission line, represents the load impedance, Represents the phase constant, which is related to the propagation characteristics of the microwave signal in the transmission line. The calculation formula is: ,in is the effective wavelength. When the transmission line loss is taken into account, the effective wavelength will change and can be corrected by the transmission line model. Indicates the length of the transmission line.

[0041] According to the calculation results, the impedance converter parameters are optimized to achieve maximum power transmission of microwave signals during transmission. According to the maximum power transmission theorem, when the load impedance is conjugate matched with the source impedance, that is, , which can achieve maximum power transmission. The input impedance and load impedance can be made as close to the conjugate matching state as possible by adjusting the structural parameters of the impedance converter, including the turns ratio of the transformer, the length of the transmission line and the characteristic impedance.

[0042] Assume the original microwave frequency is , the microwave frequency after transmission is ,in, represents the weight of the multimode interferometer, represents the influence factor of waveguide material on multimode interferometer, represents the propagation constant in the multimode interferometer, represents the interaction between modes in a multimode interferometer, a is the waveguide width, b is the waveguide height, and m and n are the mode indices. represents the weight of the frequency modulation algorithm, represents the modulation accuracy, o represents the modulation index, Indicates the actual bandwidth utilization efficiency, represents the target channel capacity, and B represents the transmission bandwidth. represents the weight of the impedance transformer, represents the effect of converter type on the transmission frequency, represents the reflection coefficient, represents the effect of converter loss on the transmission frequency, represents the converter characteristic impedance, represents the input impedance, Indicates output impedance.

[0043] S50, the feedback control module monitors the bit error rate of the microwave transmission signal in real time, and adjusts the multi-mode interferometer and the impedance converter according to the bit error rate.

[0044] A special bit error rate tester can be used to monitor the bit error rate BER of the transmission signal. The bit error rate tester compares the received signal with the original transmitted signal, and counts the ratio of the number of erroneous code elements to the total number of code elements to obtain the bit error rate BER. Through the analysis of the bit error rate, the feedback control module uses the feedback algorithm to adjust the frequency modulation parameters and the working state of the multi-mode interferometer and impedance converter. When the bit error rate is higher than the set threshold, it means that the signal transmission quality has deteriorated. It may be that the frequency modulation parameters are inappropriate or the working state of the multi-mode interferometer and impedance converter has changed. For the adjustment of the frequency modulation parameters, the proportional-integral-differential control algorithm is used according to the relationship between the bit error rate and the modulation index. The relationship between the output u(t) of the differential controller and the error e(t) is: ,in is the proportionality coefficient, is the integration coefficient, is the differential coefficient. The error e(t) is the difference between the set bit error rate and the actual measured bit error rate. , , The value of enables the output of the differential controller to accurately adjust the modulation index o, thereby optimizing the frequency modulation effect and reducing the bit error rate.

[0045] For multimode interferometers, when the bit error rate increases, it is possible that the coupling coefficient of the waveguide layout changes, and it is necessary to adjust the spacing or length of the waveguide through a precise mechanical adjustment device based on the feedback algorithm.

[0046] For impedance converters, according to the bit error rate feedback, it may be necessary to adjust its structural parameters, including the transformer turns ratio or the length of the transmission line. Through the automatic control circuit, the tap position of the transformer is changed to adjust the turns ratio. For impedance converters based on transmission lines, the electrical length of the transmission line can be adjusted by electronic switches, etc., so that the input impedance Better with load impedance Matching reduces signal attenuation, improves signal transmission quality, ensures that the microwave transmission frequency is stable in the high-efficiency state after the increase, and continuously improves transmission performance.

[0047] By continuously monitoring the bit error rate in real time and making feedback adjustments, the entire microwave transmission system can adapt to different transmission environments and working conditions, always maintain the best working state, and achieve stable improvement of microwave transmission frequency and efficient transmission.

[0048] Embodiment 2 like Figure 2 As shown, Embodiment 2 of the present application provides a system for increasing the frequency of microwave transmission, comprising: Acquisition module: used to collect the basic parameters of the microwave transmission line, calculate the initial wavelength of the microwave transmission line and perform standing wave analysis.

[0049] Multimode interferometer module: includes waveguide width submodule, waveguide height submodule, waveguide length submodule, and layout submodule.

[0050] Waveguide Width Submodule: used to determine the waveguide width of the multimode interferometer.

[0051] Waveguide Height Submodule: used to determine the waveguide height of the multimode interferometer.

[0052] Waveguide length submodule: used to determine the waveguide length of the multimode interferometer.

[0053] Layout submodule: used to calculate the coupling coefficient between adjacent waveguides and optimize the waveguide layout.

[0054] Sensors are integrated into the multimode interferometer to monitor the power, frequency, phase and other parameters of the microwave signal in real time. The sensors transmit the monitoring data to the feedback control module, which analyzes and processes the data according to the preset algorithm and then automatically adjusts the parameters of the interferometer.

[0055] Frequency modulation module: Use frequency modulation algorithm to increase the microwave transmission frequency of the microwave signal optimized by multi-mode interferometer.

[0056] Impedance converter module: Design matching impedance converter to improve the transmission power during microwave signal transmission.

[0057] Adjustment and optimization module: The feedback control module monitors the bit error rate of the microwave transmission signal in real time and adjusts the multi-mode interferometer and impedance converter according to the bit error rate.

[0058] For multimode interferometers, when the bit error rate increases, it is possible that the coupling coefficient of the waveguide layout changes, and it is necessary to adjust the spacing or length of the waveguide through a precise mechanical adjustment device based on the feedback algorithm.

[0059] For impedance converters, according to the bit error rate feedback, it may be necessary to adjust its structural parameters, including the transformer turns ratio or the length of the transmission line. Through the automatic control circuit, the tap position of the transformer is changed to adjust the turns ratio. For impedance converters based on transmission lines, the electrical length of the transmission line can be adjusted by electronic switches, etc., so that the input impedance Better with load impedance Matching reduces signal attenuation, improves signal transmission quality, ensures that the microwave transmission frequency is stable in the high-efficiency state after the increase, and continuously improves transmission performance.

[0060] By continuously monitoring the bit error rate in real time and making feedback adjustments, the entire microwave transmission system can adapt to different transmission environments and working conditions, always maintain the best working state, and achieve stable improvement of microwave transmission frequency and efficient transmission.

[0061] Corresponding to the above embodiment, an embodiment of the present invention provides a computer storage medium, including: at least one memory and at least one processor; The memory is used to store one or more program instructions; The processor is used for running one or more program instructions to execute a method for increasing the microwave transmission frequency.

[0062] Corresponding to the above-mentioned embodiment, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer storage medium contains one or more program instructions, and the one or more program instructions are used by a processor to execute a method for increasing the microwave transmission frequency.

[0063] The embodiments disclosed in the present invention provide a computer-readable storage medium, in which computer program instructions are stored. When the computer program instructions are executed on a computer, the computer executes the above-mentioned method for increasing the microwave transmission frequency.

[0064] In the embodiment of the present invention, the processor may be an integrated circuit chip having the ability to process signals. The processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0065] The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present invention can be directly embodied as a hardware decoding processor for execution, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The processor reads the information in the storage medium and completes the steps of the above method in combination with its hardware.

[0066] The storage medium may be a memory, which may be, for example, a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memory.

[0067] Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.

[0068] The volatile memory may be a random access memory (RAM) which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDRSDRAM), enhanced synchronous DRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus DRAM (DRRAM).

[0069] The storage media described in the embodiments of the present invention are intended to include, but are not limited to, these and any other suitable types of memory.

[0070] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the present invention can be implemented using a combination of hardware and software. When software is used, the corresponding functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. Storage media can be any available media that can be accessed by general or special-purpose computers.

[0071] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for increasing microwave transmission frequency, characterized in that: include: Collect basic parameters of microwave transmission lines, calculate the initial wavelength of microwave transmission lines and perform standing wave analysis; Design a multimode interferometer structure according to the initial wavelength, calculate the coupling coefficient between the multimode interferometer waveguides and optimize the waveguide layout according to the coupling coefficient; The microwave signal optimized by the multi-mode interferometer is used to increase the microwave transmission frequency by using a frequency modulation algorithm; Design matching impedance transformer to improve the transmission power of microwave signal during transmission; The feedback control module monitors the bit error rate of the microwave transmission signal in real time and adjusts the multi-mode interferometer and the impedance converter according to the bit error rate.

2. A method for increasing microwave transmission frequency as claimed in claim 1, characterized in that: The basic parameters of the microwave transmission line collected include line length, material dielectric constant, transmission line characteristic impedance, load impedance, and initial frequency.

3. A method for increasing microwave transmission frequency as claimed in claim 1, characterized in that: The structural parameters of the multimode interferometer include waveguide width, waveguide height, and waveguide length. The waveguide width of the multimode interferometer is determined based on the microwave frequency to be transmitted, the desired number of modes, and the transmission power limit. The waveguide height is determined based on the application scenario of the multimode interferometer, the synergistic relationship with the waveguide width, and the influence of material properties. The waveguide length is determined by accurately calculating the microwave propagation constants of different modes.

4. A method for increasing microwave transmission frequency as claimed in claim 1, characterized in that: There is a coupling coefficient between adjacent waveguides, and the coupling strength is controlled by adjusting the waveguide spacing; the waveguides corresponding to the useful signal modes that are expected to be enhanced are placed in positions close to each other and where optimal coupling can be achieved; the waveguides corresponding to the noise and interference signal modes are placed away from the useful signal waveguides in terms of layout, or are placed in a specific relative position to reduce coupling with the useful signal modes.

5. The method for increasing microwave transmission frequency according to claim 1, characterized in that: For microwave signals whose frequency is increased by the frequency modulation algorithm, a matching impedance converter is designed to solve the matching problem of microwave signals between transmission lines with different impedances, so as to reduce signal reflection and improve transmission efficiency.

6. A method for increasing microwave transmission frequency as claimed in claim 1, characterized in that: A special bit error rate tester is used to test the bit error rate, and the feedback control module adjusts the parameters of the multimode interferometer and the impedance converter according to the bit error rate of the microwave transmission signal.

7. A system for increasing microwave transmission frequency, characterized in that: include: Acquisition module: used to collect basic parameters of microwave transmission lines, calculate the initial wavelength of microwave transmission lines and perform standing wave analysis; Multimode interferometer module: designs the multimode interferometer structure according to the initial wavelength, calculates the coupling coefficient between the multimode interferometer waveguides and optimizes the waveguide layout according to the coupling coefficient; Frequency modulation module: Use frequency modulation algorithm to increase the microwave transmission frequency of microwave signals optimized by multi-mode interferometer; Impedance converter module: Design matching impedance converter to improve the transmission power during microwave signal transmission; Adjustment and optimization module: The feedback control module monitors the bit error rate of the microwave transmission signal in real time and adjusts the multi-mode interferometer and impedance converter according to the bit error rate.

8. A computer storage medium, characterized in that include: at least one memory and at least one processor; The memory is used to store one or more program instructions; A processor, used to run one or more program instructions to execute a method for increasing the microwave transmission frequency as described in any one of claims 1-6.

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