Dielectric waveguide dispersion suppression method and system based on channel middle section frequency spectrum shift

Abstract

The invention provides a dielectric waveguide dispersion suppression method and system based on channel middle section frequency spectrum shift, and the method comprises the steps: transmitting a to-be-transmitted signal to a dielectric waveguide channel middle section through a first dielectric waveguide channel, and generating a transmission signal affected by first waveguide dispersion; frequency mixing is carried out on the transmission signal and the double local frequency signal, a frequency mixing signal is generated, and the frequency mixing signal is a signal obtained after an upper sideband and a lower sideband of the transmission signal are exchanged; transmitting the frequency mixing signal through a second section of dielectric waveguide channel to generate a frequency mixing output signal influenced by second waveguide dispersion; the first-section dielectric waveguide channel and the second-section dielectric waveguide channel have the same physical length and dispersion characteristic, so that the dispersion of the first waveguide and the dispersion of the second waveguide are mutually compensated. The frequency spectrum shifting operation is introduced into the middle section of the channel to realize the exchange of the upper sideband and the lower sideband, so that the dispersion generated by the two sections of dielectric waveguide channels is mutually compensated, the dispersion effect is effectively inhibited, and the signal transmission distance is increased.

Description

Technical Field

[0001] This application relates to the field of dielectric waveguide communication technology, and in particular to a dielectric waveguide dispersion suppression method and system based on mid-channel spectrum shifting. Background Technology

[0002] Dielectric waveguide communication systems, as important carriers for high-frequency, high-capacity signal transmission, have wide applications in cutting-edge communication fields such as millimeter waves and terahertz waves. These systems utilize dielectric waveguides as transmission channels, enabling efficient transmission of broadband signals; however, their transmission performance is severely limited by dispersion effects. Dispersion leads to signal waveform broadening and inter-symbol interference, thus restricting the system's maximum transmission distance and communication quality.

[0003] Existing technologies typically employ digital equalization or dual-band transceiver architectures to compensate for signal distortion caused by dispersion. Digital equalization technology recovers the signal at the receiver using nonlinear algorithms such as the Volterra series, relying on high-speed analog-to-digital converters and highly complex digital signal processing units. Dual-band transceiver solutions, on the other hand, use two independent transceivers to process signals in different frequency bands, utilizing frequency band division to reduce the impact of single-channel dispersion.

[0004] However, digital equalization methods suffer from high computational complexity and high power consumption, while dual-band structures significantly increase chip area and system cost. Furthermore, neither of the aforementioned schemes fundamentally solves the dispersion problem at the physical transmission mechanism level; they can only provide post-compensation or avoidance of dispersion effects under limited conditions, failing to achieve complete dispersion suppression while maintaining system simplicity. Summary of the Invention

[0005] This application provides a method and system for suppressing dispersion in dielectric waveguides based on mid-channel spectrum shifting, in order to solve the problems of limited signal transmission distance and degraded communication quality caused by dispersion effects in the prior art.

[0006] In a first aspect, this application provides a method for suppressing dielectric waveguide dispersion based on mid-channel spectrum shifting, comprising:

[0007] The signal to be transmitted is transmitted through the first segment of the dielectric waveguide channel to the middle segment of the dielectric waveguide channel, generating a transmission signal affected by the first waveguide dispersion; the first waveguide dispersion is generated during the transmission of the signal to be transmitted in the first segment of the dielectric waveguide channel.

[0008] The transmitted signal is mixed with a signal at twice the local oscillator frequency to generate a mixed signal; the mixed signal is the signal in which the upper and lower sidebands of the transmitted signal are swapped.

[0009] The mixing signal is transmitted through the second dielectric waveguide channel to generate a mixing output signal affected by the second waveguide dispersion; the second waveguide dispersion is generated during the transmission of the mixing signal through the second dielectric waveguide channel.

[0010] The mixed output signal is transmitted to the receiver;

[0011] The first dielectric waveguide channel and the second dielectric waveguide channel have the same physical length and dispersion characteristics.

[0012] The first waveguide dispersion and the second waveguide dispersion compensate for each other.

[0013] Optionally, under the condition of considering only the first-order nonlinearity of the channel phase constant, the equivalent baseband transfer function corresponding to the signal to be transmitted is:

[0014]

[0015] Where l0 is the length of a single segment of dielectric waveguide; β1 is the group delay per unit length; and β2 is the dispersion at the center frequency.

[0016] Preferably, before transmitting the signal to be transmitted through the first segment of the dielectric waveguide channel to the middle segment of the dielectric waveguide channel, the method further includes:

[0017] Receive input signals;

[0018] The input signal is up-converted to generate an up-converted signal; the frequency of the up-converted signal is in the radio frequency band.

[0019] The up-converted signal is amplified to generate the signal to be transmitted, so that the power of the signal to be transmitted is within the transmission power range supported by the dielectric waveguide channel.

[0020] Preferably, after the mixed signal is transmitted to the receiver through the second dielectric waveguide channel, the method further includes: the receiver performing down-conversion processing on the mixed output signal to generate a down-converted signal; performing low-pass filtering on the down-converted signal to recover the baseband output signal corresponding to the input signal; and the data content of the baseband output signal being the same as the data content of the input signal.

[0021] The second aspect is the dielectric waveguide dispersion suppression method based on channel mid-segment spectrum shifting applied to the first aspect, comprising: a first dielectric waveguide channel module, an active mixing module, a second dielectric waveguide channel module, and a signal receiving module;

[0022] The first dielectric waveguide channel module is configured to transmit the signal to be transmitted to the active mixer module. The signal received by the active mixer module is the transmission signal generated by the dispersion effect of the signal to be transmitted through the first waveguide.

[0023] The active mixer module is configured to mix the transmitted signal with a signal at twice the local oscillator frequency to generate a mixed signal; the mixed signal is the signal in which the upper and lower sidebands of the transmitted signal are swapped.

[0024] The second dielectric waveguide channel module is configured to transmit the mixing signal to the signal receiving module. The signal received by the signal receiving module is the mixing output signal generated by the dispersion effect of the mixing signal after the second waveguide.

[0025] The first dielectric waveguide channel module and the second dielectric waveguide channel module have the same group delay dispersion characteristics.

[0026] Preferably, the active mixing module includes: a mixer and a local oscillator signal generation module;

[0027] The signal input terminal of the mixer is connected to the output terminal of the first dielectric waveguide channel module; the signal output terminal of the mixer is connected to the input terminal of the second dielectric waveguide channel module; the local oscillator input terminal of the mixer is connected to the output terminal of the local oscillator signal generation module.

[0028] The local oscillator signal generation module is configured to provide the mixer with a signal at twice the local oscillator frequency.

[0029] The mixer is configured as follows:

[0030] Receive transmitted signals;

[0031] Receives a signal at twice the local oscillator frequency;

[0032] The transmitted signal is mixed with a signal at twice the local oscillator frequency to generate a mixed signal.

[0033] Preferably, the local oscillator signal generation module includes an oscillator circuit;

[0034] The oscillator circuit is configured to generate a signal at twice the local oscillator frequency.

[0035] Preferably, the system further includes: a signal transmitting module;

[0036] The signal transmission module includes: an up-conversion unit and a power amplifier unit;

[0037] The upconversion unit is configured to upconvert the input signal to the radio frequency band to generate an upconverted signal;

[0038] The power amplification unit is configured to amplify the power of the up-converted signal to generate the signal to be transmitted, so that the power of the signal to be transmitted is within the transmission power range supported by the dielectric waveguide channel.

[0039] Preferably, the signal receiving module includes: a down-conversion unit and a low-pass filter unit;

[0040] The downconversion unit is configured to downconvert the mixer output signal to generate a downconverted signal;

[0041] The low-pass filter unit is configured to perform low-pass filtering on the down-converted signal to recover the baseband output signal corresponding to the input signal; the data content of the baseband output signal is the same as the data content of the input signal.

[0042] Thirdly, this application provides a computer-readable storage medium, comprising: the computer-readable storage medium including at least one computer instruction, the at least one computer instruction being configured to cause a computer to perform the steps of the medium waveguide dispersion suppression method based on channel mid-segment spectrum shifting as described in the first aspect.

[0043] As can be seen from the above technical solutions, this application provides a method and system for suppressing dielectric waveguide dispersion based on mid-channel spectrum shifting. The method includes: transmitting a signal to be transmitted through a first dielectric waveguide channel to the mid-channel of the dielectric waveguide channel to generate a transmission signal affected by first waveguide dispersion; the first waveguide dispersion is generated during the transmission of the signal to be transmitted in the first dielectric waveguide channel; mixing the transmission signal with a signal at twice the local oscillator frequency to generate a mixed signal, the mixed signal being a signal in which the upper sideband and lower sideband of the transmission signal are exchanged; transmitting the mixed signal through a second dielectric waveguide channel to generate a mixed output signal affected by second waveguide dispersion, the second waveguide dispersion being generated during the transmission of the mixed signal in the second dielectric waveguide channel; and transmitting the mixed output signal to a receiver; wherein the first dielectric waveguide channel and the second dielectric waveguide channel have the same physical length and dispersion characteristics, and the first waveguide dispersion and the second waveguide dispersion compensate for each other. This application achieves upper and lower sideband switching by introducing spectrum shifting operations in the middle of the channel, which enables the dispersion generated by the first and second dielectric waveguide channels to compensate for each other, solves the signal distortion problem caused by dispersion effect, realizes dispersion suppression in the dielectric waveguide channel, and effectively increases the signal's maximum transmission distance. Attached Figure Description

[0044] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 A flowchart of a dielectric waveguide dispersion suppression method based on mid-channel spectrum shifting provided in this application embodiment;

[0046] Figure 2 This is a schematic diagram of the structure of a dielectric waveguide dispersion suppression system based on mid-channel spectrum shifting provided in an embodiment of this application. Detailed Implementation

[0047] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application as detailed in the claims.

[0048] In high-speed communication systems, dielectric waveguides, as transmission channels, can support the efficient transmission of broadband signals, but their transmission performance is severely limited by dispersion effects. Dispersion leads to signal waveform broadening and inter-symbol interference, thus restricting the system's maximum transmission distance and communication quality.

[0049] From the perspective of the transmission characteristics of dielectric waveguide channels, the nonlinearity of the phase constant during signal transmission causes dispersion, resulting in group delay differences between different frequency components. Traditional dispersion suppression schemes employ receiver-side digital equalization or dual-band transceiver structures. Digital equalization technology requires high-speed analog-to-digital converters and highly complex digital signal processing units, resulting in high computational complexity and high power consumption. Dual-band schemes require two independent transceivers, significantly increasing chip area and system cost. Neither of these schemes fundamentally solves the dispersion problem from the physical transmission mechanism; they can only provide post-compensation or avoidance of dispersion effects under limited conditions.

[0050] The proposed solution is applicable to high-speed data transmission scenarios between different chips. By introducing a spectrum shifting operation in the middle of the channel, it effectively solves the dispersion limitation problem of data transmission between chips.

[0051] To address the transmission distance limitation caused by dispersion effects in dielectric waveguide channels, such as... Figure 1 As shown, some embodiments of this application provide a method for suppressing dielectric waveguide dispersion based on mid-channel spectrum shifting, including:

[0052] S101. The signal to be transmitted is transmitted through the first segment of the dielectric waveguide channel to the middle segment of the dielectric waveguide channel to generate a transmission signal affected by the dispersion of the first waveguide.

[0053] The first waveguide dispersion is caused by the nonlinear characteristics of the channel phase constant during the transmission of the signal in the first segment of the dielectric waveguide channel. This nonlinear characteristic causes the phase delay of different frequency components of the signal to change at different rates with frequency, which ultimately manifests as group delay deviation of different frequency components, forming a dispersion effect.

[0054] Specifically, the first waveguide dispersion is the group delay distortion generated when the signal to be transmitted passes through the first segment of the dielectric waveguide channel; under the condition of considering only the first-order nonlinearity of the channel phase constant, the equivalent baseband transfer function corresponding to the signal to be transmitted is:

[0055]

[0056] Where l0 is the length of a single segment of dielectric waveguide, reflecting the physical scale of the channel; β1 is the group delay per unit length, reflecting the transmission speed of the signal in the waveguide; β2 is the center frequency dispersion, characterizing the intensity of channel dispersion; this transfer function quantifies the degree of influence of dispersion caused by first-order nonlinearity on the signal phase.

[0057] S102. Mix the transmitted signal with the signal at twice the local oscillator frequency to generate a mixed signal.

[0058] The mixing signal is the signal in which the upper and lower sidebands of the transmitted signal are swapped.

[0059] Specifically, the mixing operation is performed by a mixer, which achieves the switching of the upper and lower sidebands of the transmitted signal through spectrum shifting, including:

[0060] Receive the transmitted signal from the first segment of the dielectric waveguide channel;

[0061] Receive a signal at twice the local oscillator frequency as the reference signal for mixing processing;

[0062] The mixer mixes the transmitted signal with a signal at twice the local oscillator frequency. Through the spectrum shifting effect, it swaps the positions of the upper and lower sideband frequency components of the transmitted signal, resulting in a mixed signal in which the upper and lower sidebands have been swapped.

[0063] Since the signal to be transmitted generates a transmission signal affected by the first waveguide dispersion after being transmitted through the first segment of the dielectric waveguide channel, the upper and lower sidebands of the transmission signal accumulate group delays with opposite signs. Through the above mixing operation, the spectral positions of the upper and lower sidebands of the transmission signal can be swapped.

[0064] S103. The mixing signal is transmitted through the second dielectric waveguide channel to generate a mixing output signal affected by the dispersion of the second waveguide.

[0065] In this process, the mixed signal generates a second waveguide dispersion that is opposite to the dispersion characteristics of the first waveguide during transmission in the second segment of the dielectric waveguide channel.

[0066] Specifically, the mixing signal generates second waveguide dispersion during transmission in the second dielectric waveguide channel, including:

[0067] Receive mixing signals;

[0068] The mixed signal continues to be transmitted through the second dielectric waveguide channel;

[0069] During transmission, the different frequency components of the mixed signal generate group delay differences in the second segment of the dielectric waveguide channel, forming the second waveguide dispersion;

[0070] Since the mixing signal has undergone upper and lower sideband switching processing, the group delay deviation sign carried by its different frequency components and generated from the first segment of the dielectric waveguide channel is opposite to the group delay deviation sign of the corresponding frequency component generated during the transmission of the second segment of the dielectric waveguide channel.

[0071] In the specific transmission process, the second dielectric waveguide channel has the same physical length and transmission characteristics as the first dielectric waveguide channel, ensuring that the second waveguide dispersion has the same amplitude and opposite sign as the first waveguide dispersion with respect to the local oscillator frequency.

[0072] Finally, after transmission through the second dielectric waveguide channel, the dispersion of the second waveguide compensates for the dispersion of the first waveguide, thereby completing dispersion suppression and realizing high-quality data transmission between chips.

[0073] S104. Transmit the mixed output signal to the receiver.

[0074] The mixed output signal generated by the transmission through the second dielectric waveguide channel is directly transmitted to the signal input terminal of the receiver, which is located at the input terminal of the receiver chip for subsequent processing.

[0075] In some embodiments, the dielectric waveguide dispersion suppression method based on channel mid-segment spectrum shifting provided in this application further includes: performing a transmission processing step before transmitting the signal to be transmitted through the first segment of the dielectric waveguide channel to the middle segment of the dielectric waveguide channel.

[0076] Specifically, the launch process includes:

[0077] Receive input signals from the transmitter chip;

[0078] The input signal is up-converted to generate an up-converted signal; the frequency of the up-converted signal is in the radio frequency band.

[0079] The up-converted signal is amplified to generate the signal to be transmitted.

[0080] In this process, the power of the signal to be transmitted is increased to the rated power value within the transmission power range supported by the dielectric waveguide channel through power amplification. This rated power value ensures that the signal can be transmitted to the receiving chip through the dielectric waveguide channel without excessive attenuation, thus guaranteeing the reliability of communication between chips.

[0081] If the power level of the signal to be transmitted is lower than the lower limit of the transmission power range supported by the dielectric waveguide channel, the output power needs to be further increased by the power amplification unit until it reaches the power requirement suitable for transmission in the dielectric waveguide channel.

[0082] In some embodiments, the dielectric waveguide dispersion suppression method based on channel mid-segment spectrum shifting provided in this application further includes, after transmitting the mixed signal to the receiver through the second segment dielectric waveguide channel, the receiver performs down-conversion processing on the mixed output signal to generate a down-converted signal.

[0083] The down-converted signal is low-pass filtered to recover the baseband output signal corresponding to the input signal; the data content of the baseband output signal is the same as the data content of the input signal.

[0084] Specifically, during the receiving and processing, the mixing output signal from the second dielectric waveguide channel is first sent to the downconversion unit. The downconversion process shifts the frequency of the mixing output signal from the radio frequency band to near the baseband, generating a downconverted signal containing baseband components. Subsequently, the downconverted signal is sent to the low-pass filter unit. The low-pass filter removes high-frequency noise and out-of-band noise from the downconverted signal, extracts the baseband signal components corresponding to the input signal, and finally recovers the complete baseband output signal.

[0085] Because the first waveguide dispersion and the second waveguide dispersion compensate for each other within a considerable bandwidth, the waveform distortion generated during signal transmission is effectively corrected. Therefore, the data content of the baseband output signal is the same as the data content of the input signal, ensuring error-free and high reliability of data transmission between chips.

[0086] The down-conversion process uses the local oscillator frequency corresponding to the up-conversion process at the transmitting end to ensure the accuracy of the frequency shifting process; the cutoff frequency of the low-pass filter is matched with the bandwidth of the input signal to ensure that the baseband signal is effectively preserved while suppressing out-of-band interference.

[0087] If there are residual high-frequency components or noise in the baseband output signal, the filtering effect can be further optimized by adjusting the low-pass filter parameters until a baseband output signal that meets the requirements is recovered.

[0088] In some embodiments, such as Figure 2 As shown, this application provides a dielectric waveguide dispersion suppression system based on mid-channel spectrum shifting, applied to the dielectric waveguide dispersion suppression method based on mid-channel spectrum shifting described in the first aspect, comprising:

[0089] The first dielectric waveguide channel module 210 transmits the signal to be transmitted to the active mixer module 220. The signal received by the active mixer module 220 is the transmission signal generated by the dispersion effect of the signal to be transmitted through the first waveguide.

[0090] The active mixer module 220 is configured to mix the transmitted signal with a signal at twice the local oscillator frequency to generate a mixed signal; the mixed signal is a signal in which the upper and lower sidebands of the transmitted signal are swapped.

[0091] The second dielectric waveguide channel module 230 transmits the mixing signal to the signal receiving module 250. The signal received by the signal receiving module 250 is the mixing output signal generated by the dispersion effect of the mixing signal after the second waveguide.

[0092] The first dielectric waveguide channel module 210 and the second dielectric waveguide channel module 230 have the same group delay dispersion characteristics, ensuring that the first waveguide dispersion and the second waveguide dispersion can compensate for each other.

[0093] First, after the signal to be transmitted enters the first medium waveguide channel module 210, the first waveguide dispersion is generated during the transmission process due to the nonlinear characteristics of the channel phase constant. This manifests as a group delay difference in different frequency components of the signal, generating a transmission signal affected by the first waveguide dispersion, and transmitting the transmission signal to the active mixer module 220.

[0094] Then, the active mixer module 220 receives the transmitted signal and the signal at twice the local oscillator frequency, and performs frequency shifting through mixing to swap the upper and lower sidebands of the transmitted signal, so that the frequency components that originally accumulated specific symbol group delays swapped their spectral positions, generating a mixed signal after sideband swapping.

[0095] Based on this, the mixed signal is transmitted in the second dielectric waveguide channel module 230. Since the second dielectric waveguide channel module 230 and the first dielectric waveguide channel module 210 have the same group delay dispersion characteristics, the mixed signal generates second waveguide dispersion during transmission in the second dielectric waveguide channel module 230, generating a mixed output signal affected by the second waveguide dispersion, and transmitting the mixed transmission signal to the signal receiving module 250. Because the sideband switching has changed the group delay sign of the frequency components, the second waveguide dispersion and the first waveguide dispersion exhibit the characteristics of equal amplitude with respect to the local oscillator frequency and opposite sign, thereby achieving mutual compensation with the first waveguide dispersion.

[0096] The system utilizes an active mixer module 220 between the first and second dielectric waveguide channel modules to achieve sideband switching by spectrum shifting. This allows the dispersion generated by the two channels to compensate for each other, fundamentally solving the dispersion problem in the dielectric waveguide channel and significantly improving the distance and quality of data transmission between chips.

[0097] In some embodiments, such as Figure 2As shown, the active mixer module 220 includes a mixer 2201 and a local oscillator signal generation module 2202;

[0098] The signal input terminal of the mixer is connected to the output terminal of the first dielectric waveguide channel module 210; the signal output terminal of the mixer 2201 is connected to the input terminal of the second dielectric waveguide channel module 230; the local oscillator input terminal of the mixer 2201 is connected to the output terminal of the local oscillator signal generation module 2202.

[0099] The local oscillator signal generation module 2202 is configured to generate a frequency-accurate signal twice the local oscillator frequency and provide a stable local oscillator input to the mixer 2201;

[0100] Mixer 2201 is configured to mix the transmitted signal with a signal at twice the local oscillator frequency, and to exchange the upper and lower sidebands of the transmitted signal by spectrum shifting to generate a mixed signal.

[0101] Specifically, mixer 2201 is configured to perform mixing processing, including:

[0102] Receive the transmission signal, which is the signal generated after the signal to be transmitted is affected by the dispersion of the first waveguide during the transmission process of the signal to be transmitted in the first medium waveguide channel module 210;

[0103] It receives a signal at twice the local oscillator frequency provided by the local oscillator signal generation module 2202, which has stable frequency and phase characteristics;

[0104] The transmitted signal is mixed with a signal at twice the local oscillator frequency to generate a mixed signal in which the upper and lower sidebands of the transmitted signal are swapped.

[0105] The mixed signal is transmitted to the second dielectric waveguide channel module 230.

[0106] With the above configuration, the active mixer module 220 can perform sideband switching operation in the middle of the channel by spectrum shifting, providing the necessary conditions for subsequent dispersion compensation.

[0107] In some embodiments, the local oscillator signal generation module 2202 includes an oscillator circuit;

[0108] Specifically, the oscillator circuit is configured to generate a signal at twice the local oscillator frequency and output it to the local oscillator input of the mixer 2201.

[0109] With the above configuration, the local oscillator signal generation module can provide a stable and reliable local oscillator signal for the active mixer module, ensuring the accuracy of spectrum shifting and sideband switching operations, thereby improving the dispersion suppression performance of the system.

[0110] In some embodiments, such as Figure 2As shown, the system also includes a signal transmitting module 240;

[0111] The signal transmission module 240 includes an up-conversion unit 2401 and a power amplifier unit 2402. The up-conversion unit 2401 is a module inside the transmission chip, and its input terminal is used to receive the input signal output by the transmission chip. The output terminal of the up-conversion unit 2401 is connected to the input terminal of the power amplifier unit 2402, and the output terminal of the power amplifier unit 2402 is connected to the input terminal of the first dielectric waveguide channel module 210.

[0112] The upconversion unit 2401 is configured to perform upconversion processing: receive the input signal output by the transmitter chip, upconvert the input signal to the radio frequency band, and generate an upconverted signal;

[0113] The power amplifier unit 2402 is configured to boost the power of the up-converted signal to the rated power value to generate the signal to be transmitted, so that the power of the signal to be transmitted is within the transmission power range supported by the dielectric waveguide channel.

[0114] With the above configuration, the signal transmitting module 240 can convert the input signal from the transmitting chip into a signal suitable for transmission in the dielectric waveguide channel, providing a compliant input signal for subsequent dispersion suppression processing and ensuring the reliability of data transmission between chips.

[0115] In some embodiments, such as Figure 2 As shown, the signal receiving module 250 includes: a down-conversion unit 2501 and a low-pass filter unit 2502;

[0116] The input terminal of the downconversion unit 2501 is connected to the output terminal of the second dielectric waveguide channel module 230. The downconversion unit 2501 is configured to receive the dispersion-compensated mixed output signal and perform downconversion processing on the mixed output signal. The output terminal of the downconversion unit 2501 is connected to the input terminal of the low-pass filter unit.

[0117] The output of the low-pass filter unit 2502 is used to output the recovered baseband output signal; the low-pass filter unit 2502 is configured to perform low-pass filtering on the down-converted signal to recover the baseband output signal corresponding to the input signal; the data content of the baseband output signal is the same as the data content of the input signal.

[0118] The downconversion unit 2501 shifts the spectrum of the mixed output signal to the baseband region to generate a downconverted signal containing baseband components. The low-pass filter unit 2502 is configured to filter out high-frequency components and out-of-band noise in the downconverted signal and recover the baseband output signal corresponding to the input signal. Thanks to the complete dispersion compensation generated by the first dielectric waveguide channel module 210 and the second dielectric waveguide channel module 230, the waveform distortion caused by dispersion during signal transmission has been corrected, so that the data content of the baseband output signal is the same as the data content of the input signal.

[0119] With the above configuration, the signal receiving module 250 can completely restore the dispersion-compensated mixed output signal to the original baseband signal, ensuring the integrity and accuracy of data transmission between chips and achieving high-quality signal reception.

[0120] In some embodiments, this application provides a computer-readable storage medium including at least one computer instruction for causing a computer to perform steps of the medium waveguide dispersion suppression method based on channel mid-segment spectrum shifting as described in the first aspect.

[0121] When computer instructions are loaded and executed by a computer (such as a signal processing chip, a processor of a terminal device, etc.), the computer can perform steps such as the dielectric waveguide dispersion suppression method based on channel mid-segment spectrum shifting in the first aspect, including but not limited to: transmission processing of the signal to be transmitted, generating first waveguide dispersion through a first segment dielectric waveguide channel, performing spectrum shifting in the mid-segment of the channel to achieve sideband switching, and generating second waveguide dispersion through a second segment dielectric waveguide channel to compensate for the first waveguide dispersion, etc.

[0122] By executing the aforementioned computer instructions, the computer can control the dielectric waveguide communication system to complete dispersion suppression operations according to preset logic, ensuring that the dispersion of signals transmitted in the dielectric waveguide channel is effectively compensated, thereby improving the stability and transmission distance of data transmission between chips.

[0123] As can be seen from the above technical solutions, this application provides a method and system for suppressing dielectric waveguide dispersion based on mid-channel spectrum shifting. The method includes: transmitting the signal to be transmitted through a first dielectric waveguide channel to the mid-channel of the dielectric waveguide channel to generate a transmission signal affected by first waveguide dispersion, wherein the first waveguide dispersion is generated during the transmission of the signal to be transmitted in the first dielectric waveguide channel; mixing the transmission signal with a signal at twice the local oscillator frequency to generate a mixed signal, wherein the mixed signal is a signal in which the upper and lower sidebands of the transmission signal are swapped; transmitting the mixed signal through a second dielectric waveguide channel to generate a mixed output signal affected by second waveguide dispersion, and transmitting the mixed output signal to a receiver, wherein the second waveguide dispersion is generated during the transmission of the mixed signal in the second dielectric waveguide channel; the first and second dielectric waveguide channels have the same physical length and dispersion characteristics; and the first and second waveguide dispersions compensate for each other. This application achieves upper and lower sideband switching by introducing a spectrum shifting operation in the middle of the dielectric waveguide channel, enabling the dispersion generated by the front channel to compensate for the dispersion generated by the back channel. This solves the dispersion problem of the dielectric waveguide channel from a physical mechanism perspective, thereby effectively extending the signal transmission distance and providing a core guarantee for high-fidelity data transmission between chips.

[0124] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A method for suppressing dielectric waveguide dispersion based on mid-channel spectrum shifting, characterized in that, include: The signal to be transmitted is transmitted through the first segment of the dielectric waveguide channel to the middle segment of the dielectric waveguide channel, generating a transmission signal affected by the first waveguide dispersion; the first waveguide dispersion is generated by the signal to be transmitted during the transmission of the signal in the first segment of the dielectric waveguide channel; The transmitted signal is mixed with a signal at twice the local oscillator frequency to generate a mixed signal; the mixed signal is a signal in which the upper and lower sidebands of the transmitted signal are swapped. The mixing signal is transmitted through the second dielectric waveguide channel to generate a mixing output signal affected by the second waveguide dispersion; the second waveguide dispersion is generated during the transmission of the mixing signal through the second dielectric waveguide channel. The mixed output signal is transmitted to the receiver; The first segment of the dielectric waveguide channel and the second segment of the dielectric waveguide channel have the same physical length and dispersion characteristics. The first waveguide dispersion and the second waveguide dispersion compensate for each other.

2. The dielectric waveguide dispersion suppression method based on mid-channel spectrum shifting according to claim 1, characterized in that, Under the condition of first-order nonlinearity considering only the channel phase constant, the equivalent baseband transfer function corresponding to the signal to be transmitted is: Where l0 is the length of a single segment of dielectric waveguide; β1 is the group delay per unit length; and β2 is the dispersion at the center frequency.

3. The dielectric waveguide dispersion suppression method based on mid-channel spectrum shifting according to claim 1, characterized in that, Before transmitting the signal to be transmitted through the first segment of the dielectric waveguide channel to the middle segment of the dielectric waveguide channel, the process also includes: Receive input signals; The input signal is up-converted to generate an up-converted signal; the frequency of the up-converted signal is in the radio frequency band. The up-converted signal is amplified to generate the signal to be transmitted, so that the power of the signal to be transmitted is within the transmission power range supported by the dielectric waveguide channel.

4. The dielectric waveguide dispersion suppression method based on mid-channel spectrum shifting according to claim 3, characterized in that, After transmitting the mixed signal to the receiver through the second dielectric waveguide channel, the method further includes: the receiver performing down-conversion processing on the mixed output signal to generate a down-converted signal; The down-converted signal is low-pass filtered to recover the baseband output signal corresponding to the input signal; the data content of the baseband output signal is the same as the data content of the input signal.

5. A dielectric waveguide dispersion suppression system based on mid-channel spectrum shifting, characterized in that, include: The system comprises a first dielectric waveguide channel module, an active mixer module, a second dielectric waveguide channel module, and a signal receiving module. The first dielectric waveguide channel module is configured to transmit the signal to be transmitted to the active mixer module, and the signal received by the active mixer module is the transmission signal generated by the dispersion effect of the signal to be transmitted through the first waveguide. The active mixer module is configured to mix the transmitted signal with a signal at twice the local oscillator frequency to generate a mixed signal; the mixed signal is a signal in which the upper and lower sidebands of the transmitted signal are swapped. The second dielectric waveguide channel module is configured to transmit the mixing signal to the signal receiving module, wherein the signal received by the signal receiving module is the mixing output signal generated by the dispersion effect of the mixing signal through the second waveguide; The first dielectric waveguide channel module and the second dielectric waveguide channel module have the same group delay dispersion characteristics.

6. The dielectric waveguide dispersion suppression system based on mid-channel spectrum shifting according to claim 5, characterized in that, The active mixing module includes: a mixer and a local oscillator signal generation module; The signal input terminal of the mixer is connected to the output terminal of the first dielectric waveguide channel module; the signal output terminal of the mixer is connected to the input terminal of the second dielectric waveguide channel module; the local oscillator input terminal of the mixer is connected to the output terminal of the local oscillator signal generation module. The local oscillator signal generation module is configured to provide the mixer with the signal at twice the local oscillator frequency. The mixer is configured as follows: Receive the transmitted signal; Receive the signal at twice the local oscillator frequency; The transmitted signal is mixed with the signal at twice the local oscillator frequency to generate the mixed signal.

7. The dielectric waveguide dispersion suppression system based on mid-channel spectrum shifting according to claim 6, characterized in that, The local oscillator signal generation module includes an oscillator circuit; The oscillator circuit is configured to generate the signal at twice the local oscillator frequency.

8. The dielectric waveguide dispersion suppression system based on mid-channel spectrum shifting according to claim 5, characterized in that, The system also includes: a signal transmitting module; The signal transmitting module includes: an up-conversion unit and a power amplifier unit; The upconversion unit is configured to upconvert the input signal to the radio frequency band to generate an upconverted signal. The power amplification unit is configured to amplify the power of the up-converted signal to generate the signal to be transmitted, so that the power of the signal to be transmitted is within the transmission power range supported by the dielectric waveguide channel.

9. The dielectric waveguide dispersion suppression system based on mid-channel spectrum shifting according to claim 8, characterized in that, The signal receiving module includes: a down-conversion unit and a low-pass filter unit; The downconversion unit is configured to downconvert the mixing output signal to generate a downconverted signal. The low-pass filter unit is configured to perform low-pass filtering on the down-converted signal to recover the baseband output signal corresponding to the input signal; the data content of the baseband output signal is the same as the data content of the input signal.

10. A computer-readable storage medium, characterized in that, include: The computer-readable storage medium includes at least one computer instruction for causing the computer to perform the steps of the method as described in any one of claims 1-4.

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