Gallium oxide microstrip antenna module heat dissipation control method for unmanned aerial vehicle detection equipment

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to a gallium oxide microstrip antenna module heat dissipation control method for unmanned aerial vehicle detection equipment. According to the non-uniform density characteristics in the carrier migration space-time distribution atlas, the band gap regulation and control weight coefficient of the embedded gallium oxide substrate is solved; the band gap regulation and control weight coefficient is input into a piezoelectric actuator array to drive the piezoelectric actuator array to generate micro strain waves, a photonic crystal heterojunction topology is reconstructed in a three-dimensional space, and a thermo-phonon propagation channel in a hot spot area is directionally blocked; and detecting the pyroelectric charge cumulant caused by heat flow blocking on the surface of the gallium oxide substrate, and reversely optimizing the sampling frequency and resolution of the carrier migration spatial-temporal distribution spectrum according to the spatial distribution characteristics of the pyroelectric charge cumulant. According to the invention, a heat flow path can be accurately identified and high-frequency thermophonon propagation can be directionally blocked, so that the problem of heat accumulation of a wide bandgap semiconductor device during high-power work is effectively solved, and the heat dissipation efficiency and the temperature stability of an antenna module in unmanned aerial vehicle detection equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a heat dissipation control method for a gallium oxide microstrip antenna module used in UAV detection equipment. Background Art

[0002] With the growing demand for high-frequency, high-performance antennas in drone detection technology, wide-bandgap semiconductor gallium oxide (β-Ga2O3) has become a core material for microstrip antenna modules due to its excellent electrical properties. However, the material's inherently low thermal conductivity presents significant thermal management challenges during high-power operation. Heat accumulation not only reduces carrier mobility but also compromises antenna radiation performance. Traditional heat dissipation methods, such as forced air cooling or metal heat sinks, often interfere with the antenna's electromagnetic properties due to the mechanical structure they introduce. Thermal control technologies based on fixed-structure phononic crystals struggle to adapt to dynamic thermal field distributions. Existing thermal management solutions are mostly based on steady-state heat conduction models, which fail to fully account for the nonlinear interactions between carriers and phonons in the gallium oxide material, particularly the nonequilibrium heat transport caused by thermal-electrical coupling effects under high-frequency operation. Furthermore, due to the strong anisotropy of the gallium oxide lattice, the heat flow path exhibits complex temporal and spatial distribution characteristics, making conventional homogenized heat dissipation designs incapable of precise control. To address these problems, it is necessary to develop a new heat dissipation control method that can monitor the thermal-electric coupling state in real time and dynamically adjust the heat transport path to solve the key technical difficulties of thermal phonon propagation regulation and thermally induced charge management. Summary of the Invention

[0003] The present invention overcomes the shortcomings of the prior art and provides a heat dissipation control method for a gallium oxide microstrip antenna module for unmanned aerial vehicle detection equipment.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: The present invention discloses a heat dissipation control method for a gallium oxide microstrip antenna module for unmanned aerial vehicle detection equipment, comprising the following steps: S102: Acquire thermo-electric coupling characteristic data of the gallium oxide microstrip antenna module in real time, and construct a carrier migration distribution map with spatiotemporal resolution based on the thermo-electric coupling characteristic data; S104: dynamically calculating a band gap control weight coefficient of a phononic crystal artificial heterojunction embedded in a gallium oxide substrate based on the non-uniform density characteristics in the carrier migration spatiotemporal distribution map to match the reconstruction requirements of the heat flow conduction path; S106: Inputting the band gap control weight coefficient of the phononic crystal artificial heterojunction into the piezoelectric actuator array to drive it to generate micro-strain waves, reconstruct the phononic crystal heterojunction topology in three-dimensional space, and directionally block the thermal phonon propagation channel in the hot spot area; S108: Detecting the accumulated amount of pyroelectric charge on the surface of the gallium oxide substrate caused by the heat flow blocking, and reversely optimizing the sampling frequency and resolution of the carrier migration spatiotemporal distribution map according to its spatial distribution characteristics.

[0005] Preferably, the S102 is specifically: Acquiring real-time surface temperature field data of the gallium oxide substrate and synchronously collecting transient photoconductivity signals of the corresponding area, aligning the surface temperature field data with the transient photoconductivity signals in time and space to generate an initial carrier concentration distribution matrix; Based on the initial carrier concentration distribution matrix, the Monte Carlo simulation method is used to track the carrier scattering process. By counting the phonon collision events and the free flight time, the thermal migration component and the electric field driven component are separated. Selecting a group of high-energy carriers that scatter with high-frequency phonons from the thermally induced migration component as carriers that dominate heat transport; Based on the scattering phase angle and energy relaxation time of the high-energy carrier group, a migration rate tensor of purely thermally excited carriers is constructed, and a migration trajectory cluster evolving over time is generated through its non-equilibrium distribution function; Combined with the phonon spectrum characteristics of the gallium oxide lattice, the scattering probability of carriers and phonons in different frequency bands is determined according to the mobility tensor, and a carrier-phonon coupling intensity distribution map is constructed; Using the carrier-phonon coupling intensity distribution map, the migration trajectory clusters are subjected to frequency-domain weighted interpolation to generate a multidimensional carrier migration spatiotemporal distribution map in three-dimensional space, which includes the time axis, concentration gradient axis, and phonon frequency band axis. The topological fractal characteristics of the trajectory clusters are used to characterize the hotspot evolution trend.

[0006] Preferably, the S104 is specifically: Based on the spatial distribution of migration trajectory clusters in the carrier-phonon coupling intensity distribution map, the area where the carrier concentration gradient exceeds the preset concentration threshold is identified as the target area for heat flow control; Extract the phonon frequency band group that dominates heat transport in the target area of heat flow control, and determine the group velocity vector direction distribution characteristics of the phonon frequency band group in combination with the migration rate tensor; A three-dimensional topological model of the main heat flow diffusion path is established based on the directional distribution characteristics of the group velocity vector, and the phonon state density distribution along the path is determined based on the phonon spectrum characteristics of the gallium oxide lattice; Performing a convolution operation on the phonon state density distribution and the carrier-phonon coupling strength on the corresponding path to generate a band gap control weight coefficient, wherein the band gap control weight coefficient is used to determine the offset of the heterojunction band gap center frequency; According to the spatial variation rate of the band gap control weight coefficient, the arrangement period and rotation angle of the phononic crystal unit cell are dynamically adjusted so that the band gap distribution of the artificial heterojunction forms a matching barrier structure with the main path of heat flow diffusion.

[0007] Preferably, the step S106 is as follows: Based on the spatial distribution characteristics of the bandgap control weight coefficient, the strain wave phase delay required by each piezoelectric unit is calculated to generate a drive signal distribution matrix that matches the main heat flow diffusion path; Dynamically dividing the working clusters of the piezoelectric actuators according to the phase gradient direction in the drive signal distribution matrix and allocating corresponding timing trigger pulses so that the microstrain waves generated by adjacent actuators form coherent interference in three-dimensional space; By real-time monitoring of the strain field distribution on the gallium oxide substrate surface, the strain wave node region that coincides with the trajectory of the high-energy carrier group in the carrier-phonon coupling intensity distribution diagram is extracted as the priority control target for phonon band gap reconstruction. Dynamically adjusting the driving voltage amplitude of the piezoelectric actuator working cluster according to the strain field intensity distribution of the priority control target, so that the microstrain wave forms an elastic wave gradient field in the gallium oxide lattice in the opposite direction to the thermally induced carrier migration direction; Based on the modulation effect of the elastic wave gradient field on the phonon group velocity vector, the scattering intensity distribution of the phononic crystal heterojunction is corrected in real time, and the resonant frequency of the piezoelectric actuator working cluster is adjusted through a feedback loop so that the reconstructed phonon band gap accurately covers the phonon frequency band that dominates heat transport.

[0008] Also includes: By monitoring the temperature gradient changes in the target area of heat flow control, the blocking effect of the reconstructed phononic crystal topology on the thermal phonon propagation channel is verified. If it does not meet expectations, the phase delay distribution of the piezoelectric actuator working cluster is re-optimized.

[0009] Preferably, the working clusters of the piezoelectric actuators are dynamically divided according to the phase gradient direction in the driving signal distribution matrix, and corresponding timing trigger pulses are allocated so that the microstrain waves generated by adjacent actuators form coherent interference in three-dimensional space, specifically: Extracting a phase difference sequence between adjacent piezoelectric actuator units, and dividing the phase difference sequence between adjacent piezoelectric actuator units into actuator working clusters with continuous phase changes based on a preset coherent interference threshold; For each working cluster, the phase delay compensation value of each unit within it is obtained to generate a corresponding timing trigger pulse code group, in which the pulse rising edge time and the phase compensation value are nonlinearly mapped. The excitation timing of each working cluster is controlled by the timing trigger pulse code group, so that the microstrain wavefront generated by adjacent actuator units forms a preset wavefront curvature during the propagation process; The strain wave interference fringe patterns at the boundary of each working cluster are monitored in real time, and the strong coupling regions where the spacing of the interference fringes is smaller than the lattice constant are extracted as the key areas for wave field control. According to the spatial distribution characteristics of the wave field control key area, the division boundary of the working cluster is dynamically adjusted so that the phase jump point between adjacent clusters is always located at the strain wave node line position; Based on the adjusted working cluster division scheme, the pulse width modulation parameters of the actuator units in each cluster are recalculated to ensure that the synthetic wavefront formed in the three-dimensional space maintains a preset angle relationship with the main path of heat flow diffusion.

[0010] Preferably, the step S108 is specifically: A non-contact electrostatic probe array is used to scan point by point along the surface of the gallium oxide substrate, synchronously recording the transient pyroelectric charge density at each preset detection point, and generating a charge accumulation distribution cloud corresponding to the phonon band gap reconstruction area; Performing a spatial convolution operation on the charge accumulation distribution cloud map and the thermally induced carrier trajectory clusters in the carrier migration spatiotemporal distribution map to extract the nonlinear coupling coefficient matrix between the charge density gradient and the carrier migration rate tensor; Based on the nonlinear coupling coefficient matrix, the modulation component of the charge accumulation amount varying with the phonon frequency band is separated, and the charge oscillation frequency band associated with high-frequency thermal phonon scattering is identified; Based on the center frequency and bandwidth of the charge oscillation frequency band, the signal-to-noise ratio attenuation trend of the carrier-phonon coupling intensity distribution diagram in the corresponding frequency band is calculated to dynamically increase the sampling frequency of the corresponding frequency band to meet the time domain resolution requirements of the charge accumulation response; The spatial coordinates of the gradient mutation region in the charge accumulation distribution cloud map are used to modify the interpolation grid density of the carrier migration trajectory cluster, so that the resolution of the three-dimensional map in the hotspot evolution trend prediction area can adaptively match the spatial distribution characteristics of the pyroelectric charge. According to the phase delay characteristics of the charge oscillation frequency band, the acquisition timing of the temperature field data and the transient photoconductivity signal is realigned to eliminate the time axis drift error of the carrier concentration distribution matrix caused by heat flow blocking.

[0011] The gallium oxide microstrip antenna module includes: The gallium oxide substrate uses β-phase single-crystal gallium oxide material, with an aluminum nitride transition layer deposited on the surface to reduce lattice mismatch, and integrates a microstrip antenna radiating element array; Thermo-electric coupling sensing layer, embedded in the gallium oxide substrate, includes a distributed thermocouple array and a transient photoconductive detector for real-time acquisition of temperature field data and carrier migration signals; Phononic crystal artificial heterojunctions are composed of periodically arranged zinc oxide or gallium nitride composite columnar structures. The spacing between each unit cell is adjustable and driven by a piezoelectric actuator array to generate micro-strain waves to dynamically control the band gap distribution. The piezoelectric actuator array uses PMN-PT single crystal material and is embedded in a gallium oxide substrate in a cross-shaped layout. Each unit is independently connected to the bandgap control weight coefficient calculation module. A non-contact electrostatic probe array is suspended 50-200μm above the gallium oxide substrate and uses a diamond-coated tip to suppress charge interference. It is used to scan the pyroelectric charge accumulation distribution.

[0012] Preferably, the operating frequency band of the microstrip antenna radiation element array is 24-40 GHz, and the element spacing is less than λ / 4 to suppress surface wave loss.

[0013] The present invention addresses the technical deficiencies of the prior art and has the following beneficial effects: It acquires real-time thermoelectric coupling characteristic data of a gallium oxide microstrip antenna module and constructs a carrier migration distribution map with spatiotemporal resolution based on the thermoelectric coupling characteristic data; dynamically calculates the bandgap control weight coefficient of a phononic crystal artificial heterojunction embedded in a gallium oxide substrate based on the non-uniform density characteristics in the spatiotemporal distribution map of carrier migration; inputs the bandgap control weight coefficient of the phononic crystal artificial heterojunction into a piezoelectric actuator array, driving it to generate microstrain waves, reconstructing the phononic crystal heterojunction topology in three dimensions, and directionally blocking the propagation channels of thermal phonons in hot spots; and detects the accumulated pyroelectric charge on the gallium oxide substrate surface caused by heat flow blockage, and reversely optimizes the sampling frequency and resolution of the carrier migration spatiotemporal distribution map based on its spatial distribution characteristics. The present invention accurately identifies heat flow paths and directionally blocks high-frequency thermal phonon propagation. It also continuously improves thermal control accuracy through a closed-loop optimization mechanism, effectively solving the heat accumulation problem of wide-bandgap semiconductor devices during high-power operation and improving the heat dissipation efficiency and temperature stability of antenna modules in drone detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0015] Figure 1 This is a flow chart of the overall method for heat dissipation control of the gallium oxide microstrip antenna module; Figure 2 This is a partial flow chart of the heat dissipation control method of the gallium oxide microstrip antenna module; Figure 3 This is a schematic diagram of the gallium oxide microstrip antenna module. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figure 1 As shown, the present invention discloses a heat dissipation control method for a gallium oxide microstrip antenna module for a UAV detection device, comprising the following steps: S102: Acquire thermo-electric coupling characteristic data of the gallium oxide microstrip antenna module in real time, and construct a carrier migration distribution map with spatiotemporal resolution based on the thermo-electric coupling characteristic data; S104: dynamically calculating a band gap control weight coefficient of a phononic crystal artificial heterojunction embedded in a gallium oxide substrate based on the non-uniform density characteristics in the carrier migration spatiotemporal distribution map to match the reconstruction requirements of the heat flow conduction path; S106: Inputting the band gap control weight coefficient of the phononic crystal artificial heterojunction into the piezoelectric actuator array to drive it to generate micro-strain waves, reconstruct the phononic crystal heterojunction topology in three-dimensional space, and directionally block the thermal phonon propagation channel in the hot spot area; S108: Detecting the accumulated amount of pyroelectric charge on the surface of the gallium oxide substrate caused by the heat flow blocking, and reversely optimizing the sampling frequency and resolution of the carrier migration spatiotemporal distribution map according to its spatial distribution characteristics.

[0019] Preferably, the S102 is specifically: Acquiring real-time surface temperature field data of the gallium oxide substrate and synchronously collecting transient photoconductivity signals of the corresponding area, aligning the surface temperature field data with the transient photoconductivity signals in time and space to generate an initial carrier concentration distribution matrix; Based on the initial carrier concentration distribution matrix, the Monte Carlo simulation method is used to track the carrier scattering process. By counting the phonon collision events and the free flight time, the thermal migration component and the electric field driven component are separated. It should be noted that based on the initial distribution of carriers in the gallium oxide lattice, the carrier motion trajectories are randomly generated and their free flight time is recorded. By simulating collision events between carriers and phonons, the collision frequency and energy exchange are statistically analyzed to distinguish between migration behaviors caused by thermal excitation and electric field drive. Then, by analyzing the carrier free flight time distribution and scattering angle, the proportion of thermally induced migration components and electric field driven components is determined. Finally, the high-energy carrier group that scatters with high-frequency phonons is screened as the dominant factor in thermal transport, thereby completing the effective separation of thermally induced migration components and electric field driven components.

[0020] Selecting a group of high-energy carriers that scatter with high-frequency phonons from the thermally induced migration component as carriers that dominate heat transport; Based on the scattering phase angle and energy relaxation time of the high-energy carrier group, a migration rate tensor of purely thermally excited carriers is constructed, and a migration trajectory cluster evolving over time is generated through its non-equilibrium distribution function; Combined with the phonon spectrum characteristics of the gallium oxide lattice, the scattering probability of carriers and phonons in different frequency bands is determined according to the mobility tensor, and a carrier-phonon coupling intensity distribution map is constructed; Among them, the lattice phonon spectrum characteristics of gallium oxide refer to the distribution law of phonon energy formed by atomic vibration in β-Ga2O3 crystal as the wave vector changes, including its unique low-frequency acoustic branch and high-frequency optical branch phonon modes, which reflect the interaction characteristics of hot carriers and lattice vibrations in the material.

[0021] It should be noted that according to the phonon dispersion relation of gallium oxide materials, phonon groups of different frequency bands are divided (such as low-frequency acoustic branch and high-frequency optical branch), and the mobility rate tensor is used to determine the scattering cross-section between carriers and phonons in each frequency band, thereby determining their collision probability. Then, by statistically analyzing the energy exchange efficiency during carrier-phonon interaction, the coupling strength of different frequency bands is quantified. Finally, the scattering probability and coupling strength of each frequency band are spatially mapped to generate a two-dimensional or three-dimensional distribution map reflecting the carrier-phonon interaction strength, where the high coupling area corresponds to the main channel for heat transport.

[0022] Using the carrier-phonon coupling intensity distribution map, the migration trajectory clusters are subjected to frequency-domain weighted interpolation to generate a multidimensional carrier migration spatiotemporal distribution map in three-dimensional space, which includes the time axis, concentration gradient axis, and phonon frequency band axis. The topological fractal characteristics of the trajectory clusters are used to characterize the hotspot evolution trend.

[0023] In one embodiment of the present invention, in the gallium oxide microstrip antenna module of the UAV millimeter wave radar, a distributed infrared thermal imager and a transient photoconductive detection system are used to synchronously collect the substrate surface temperature field and carrier migration signal, and the two are aligned in time and space to generate an initial carrier concentration distribution matrix (grid size 100μm×100μm). Based on Monte Carlo simulation (iteration number 10 6 The team then isolated the thermally induced migration component (≥65%) using a spectral analysis. They then selected high-energy carriers (energy ≥50 meV) scattered by phonons above 3 THz as the primary carriers of heat transport. Combined with the β-Ga₂O₃ phonon spectrum (characteristic frequency range 2.5-4 THz), they constructed a mobility tensor (dimensions 3 × 3 × 100) and generated a three-dimensional carrier migration map (time resolution 1 ms, phonon frequency resolution 0.1 THz). Its fractal dimension (1.6-1.8) characterized the hotspot evolution path in the antenna feed region.

[0024] It should be noted that the present invention can accurately construct a three-dimensional dynamic carrier migration map by real-time synchronous monitoring of the temperature field and photoconductivity signal, combined with Monte Carlo simulation and carrier-phonon coupling analysis, thereby achieving a refined characterization of the thermal transport process of the gallium oxide substrate and accurately identifying the thermal diffusion path dominated by high-energy carriers.

[0025] Preferably, the S104, as Figure 2 As shown, specifically: S202: Based on the spatial distribution of migration trajectory clusters in the carrier-phonon coupling intensity distribution map, identifying an area where the carrier concentration gradient exceeds a preset concentration threshold as a heat flow control target area; S204: extracting the phonon frequency band group that dominates heat transport in the target area for heat flow control, and determining the group velocity vector direction distribution characteristics of the phonon frequency band group in combination with the migration rate tensor; S206: establishing a three-dimensional topological model of the main heat flow diffusion path according to the group velocity vector direction distribution characteristics, and determining the phonon state density distribution on the path based on the phonon spectrum characteristics of the gallium oxide lattice; It should be noted that based on the spatial distribution data of the phonon group velocity vector, the three-dimensional interpolation method is used to reconstruct the main propagation path network of heat flow in the gallium oxide substrate, and combined with the phonon spectrum characteristics in the

[010] direction of the gallium oxide lattice, the sections in the path network that are strongly coupled with high-frequency optical branch phonons (such as 3.2-3.8THz) are identified. Then, the phonon state density distribution curve of each path section is obtained, and the distribution characteristics of the state density peak area near 3.5THz are analyzed. Finally, the phonon state density data is mapped to the corresponding path of the three-dimensional topological model to form a characteristic map of the heat transport channel containing the frequency domain-spatial distribution.

[0026] S208: performing a convolution operation on the phonon state density distribution and the carrier-phonon coupling strength on the corresponding path to generate a band gap control weight coefficient, wherein the band gap control weight coefficient is used to determine the offset of the heterojunction band gap center frequency; S210: Dynamically adjust the arrangement period and rotation angle of the phononic crystal unit cell according to the spatial variation rate of the band gap control weight coefficient, so that the band gap distribution of the artificial heterojunction forms a barrier structure that matches the main path of heat flow diffusion.

[0027] In a specific embodiment of the present invention, in the gallium oxide microstrip antenna module of the UAV millimeter wave radar, when the carrier concentration gradient exceeds a preset threshold (e.g., greater than 1.2×10 19 When the system automatically identifies the region with coordinates of 2.5-5.5 mm (X) and 1.8-3.8 mm (Y) as the target heat flux control zone, it extracts high-frequency phonon groups within this region whose phonon group intensity exceeds a threshold (e.g., greater than 0.85 coupling strength units) at 3.2-3.8 THz. The system then uses mobility tensor analysis to determine the diffusion direction of their group velocity vectors (θ = 35° ± 5°). By setting an effective phonon density of states threshold (e.g., greater than 0.25 states / meV), the system filters the primary heat flux path and generates a bandgap control weight coefficient (valid range: 0.42-0.68). When the spatial change rate of the weight coefficient exceeds a threshold (e.g., greater than 0.1 μm⁻¹), the piezoelectric actuator compresses the phononic crystal unit cell period from 120 μm to 95 μm and adjusts the rotation angle to 22°±3° (angle tolerance threshold), causing the heterojunction band gap center frequency to shift, thereby forming a matching barrier structure on the main heat flow path, thereby suppressing the temperature rise in the feed point area.

[0028] It should be noted that this method can intelligently identify high heat flux areas and dynamically adjust the phononic crystal structure to form a bandgap barrier that matches the heat diffusion path, thereby effectively suppressing the formation of hotspots. This breaks through the limitations of traditional static thermal management and achieves directional suppression of phonon propagation in specific frequency bands, thereby improving heat dissipation efficiency.

[0029] Preferably, the step S106 is specifically: Based on the spatial distribution characteristics of the bandgap control weight coefficient, the strain wave phase delay required by each piezoelectric unit is calculated to generate a drive signal distribution matrix that matches the main heat flow diffusion path; It should be noted that by reading the weight coefficient of each piezoelectric unit's location, the weight value is converted into the corresponding strain wave phase delay through a linear interpolation algorithm, and the relative phase difference between adjacent piezoelectric units is determined according to the three-dimensional direction of the main heat flow path. Then, a drive signal matrix that matches the physical layout of the piezoelectric array (8×8 grid) is constructed, where each matrix element contains the phase delay and waveform parameters required for the unit. Finally, through coordinate transformation, the curvature characteristics of the heat flow path are mapped to the gradient distribution of the drive signal, so that the generated strain wavefront forms an accurate spatial match with the heat diffusion direction.

[0030] Dynamically dividing the working clusters of the piezoelectric actuators according to the phase gradient direction in the drive signal distribution matrix and allocating corresponding timing trigger pulses so that the microstrain waves generated by adjacent actuators form coherent interference in three-dimensional space; By real-time monitoring of the strain field distribution on the gallium oxide substrate surface, the strain wave node region that coincides with the trajectory of the high-energy carrier group in the carrier-phonon coupling intensity distribution diagram is extracted as the priority control target for phonon band gap reconstruction. It should be noted that a laser Doppler vibrometer is used to scan the substrate surface to obtain the amplitude and phase spatial distribution data of the current strain wave field; and to identify the node areas where the strain amplitude is lower than the set threshold (such as <0.1nm), and generate a three-dimensional node coordinate distribution map; the node coordinate distribution map is spatially superimposed with the high-energy carrier group trajectory (fractal dimension 1.6-1.8) in the carrier-phonon coupling intensity distribution map to confirm the overlap between the two within the preset tolerance range (such as ±10μm); the node areas where the overlap exceeds the threshold (such as ≥90%) are marked as priority control targets.

[0031] Dynamically adjusting the driving voltage amplitude of the piezoelectric actuator working cluster according to the strain field intensity distribution of the priority control target, so that the microstrain wave forms an elastic wave gradient field in the gallium oxide lattice in the opposite direction to the thermally induced carrier migration direction; Based on the modulation effect of the elastic wave gradient field on the phonon group velocity vector, the scattering intensity distribution of the phononic crystal heterojunction is corrected in real time, and the resonant frequency of the piezoelectric actuator working cluster is adjusted through a feedback loop so that the reconstructed phonon band gap accurately covers the phonon frequency band that dominates heat transport; By monitoring the temperature gradient changes in the target area of heat flow control, the blocking effect of the reconstructed phononic crystal topology on the thermal phonon propagation channel is verified. If it does not meet expectations, the phase delay distribution of the piezoelectric actuator working cluster is re-optimized.

[0032] Similarly, in the gallium oxide microstrip antenna module of the UAV millimeter-wave radar, based on the bandgap control weight coefficients (spatial distribution range 0.42-0.68) generated in Example S104, the strain wave phase delay of the 16×16 piezoelectric element array (range 0-180°) is calculated to generate a drive signal matrix (phase gradient threshold ≥ 15° / mm). Four working clusters are dynamically divided (cluster boundaries align with the main heat flow path direction θ = 35°). Sequential trigger pulses (pulse width 50ns, delay step 10ns) are distributed to enable adjacent actuators to form a coherent interference wave field in the feed point region (X = 2.5-5.5mm, Y = 1.8-3.8mm). A laser Doppler vibrometer is used to monitor the strain field in real time, and strain wave nodes coinciding with carrier trajectory clusters (fractal dimension 1.7 region) are extracted as priority control targets. At this point, the driving voltage of the working clusters is adjusted (from 8V to 15V) to generate a reverse elastic wave gradient field. When it is monitored that the temperature gradient decrease rate in the target area does not reach the threshold (<0.3K / ms), the feedback loop corrects the resonant frequency of the piezoelectric cluster from 3.50THz to 3.55THz (matching the band gap center frequency set by S104), thereby effectively blocking the 3.2-3.8THz phonon propagation channel.

[0033] It should be noted that this method achieves active blocking of the heat transport path of the gallium oxide substrate by dynamically controlling the strain wave interference field of the piezoelectric actuator array. It can accurately generate an elastic wave gradient field in the opposite direction of the heat flow diffusion, reconstruct the phonon band gap distribution through the coherent interference effect, effectively suppress the propagation of thermal phonons in a specific frequency band, and improve the real-time and accuracy of heat dissipation control. It is particularly suitable for dynamic heat flow control in hot spots under high-frequency working conditions.

[0034] Preferably, the working clusters of the piezoelectric actuators are dynamically divided according to the phase gradient direction in the driving signal distribution matrix, and corresponding timing trigger pulses are allocated so that the microstrain waves generated by adjacent actuators form coherent interference in three-dimensional space, specifically: Extracting a phase difference sequence between adjacent piezoelectric actuator units, and dividing the phase difference sequence between adjacent piezoelectric actuator units into actuator working clusters with continuous phase changes based on a preset coherent interference threshold; For each working cluster, the phase delay compensation value of each unit within it is obtained to generate a corresponding timing trigger pulse code group, in which the pulse rising edge time and the phase compensation value are nonlinearly mapped. The excitation timing of each working cluster is controlled by the timing trigger pulse code group, so that the microstrain wavefront generated by adjacent actuator units forms a preset wavefront curvature during the propagation process; The strain wave interference fringe patterns at the boundary of each working cluster are monitored in real time, and the strong coupling regions where the spacing of the interference fringes is smaller than the lattice constant are extracted as the key areas for wave field control. According to the spatial distribution characteristics of the wave field control key area, the division boundary of the working cluster is dynamically adjusted so that the phase jump point between adjacent clusters is always located at the strain wave node line position; Based on the adjusted working cluster division scheme, the pulse width modulation parameters of the actuator units in each cluster are recalculated to ensure that the synthetic wavefront formed in the three-dimensional space maintains a preset angle relationship with the main path of heat flow diffusion.

[0035] Specifically, for a 16×16 piezoelectric actuator array (1.2mm cell pitch), the phase difference sequence between adjacent cells (ranging from 0° to 150°) was extracted. When the continuous phase difference variation exceeded the coherent interference threshold (e.g., greater than or equal to 15° / mm), the array was divided into four working clusters (with an initial cluster boundary of X = 4.0mm). A timing trigger pulse coding group was generated for each cell within the cluster. This coding group controlled the excitation timing, generating a coherent strain wave field with a wavefront curvature radius of R = 8mm in the feed point region (X = 2.5-5.5mm, Y = 1.8-3.8mm). Real-time laser schlieren monitoring then revealed a strong coupling region at the boundary with an interference fringe spacing of 0.45μm (smaller than the β-Ga2O3 lattice constant of 0.52μm). At this point, the cluster boundary was dynamically adjusted to X = 3.8mm (so that the phase jump point fell within the strain wave node line). After adjustment, the pulse width was recalculated (pulse width range 48-85ns) to ensure that the synthetic wavefront maintained a preset angle of 55°±3° with the main path of heat flow (θ=35°).

[0036] Overall, the present invention can dynamically generate a synthetic elastic wave field with a specific wavefront curvature, so that the strain wave node line forms an optimal spatial match with the heat flow path, thereby constructing an efficient thermal phonon blocking structure in the gallium oxide lattice. Preferably, the step S108 is specifically: A non-contact electrostatic probe array is used to scan point by point along the surface of the gallium oxide substrate, synchronously recording the transient pyroelectric charge density at each preset detection point, and generating a charge accumulation distribution cloud corresponding to the phonon band gap reconstruction area; Performing a spatial convolution operation on the charge accumulation distribution cloud map and the thermally induced carrier trajectory clusters in the carrier migration spatiotemporal distribution map to extract the nonlinear coupling coefficient matrix between the charge density gradient and the carrier migration rate tensor; Based on the nonlinear coupling coefficient matrix, the modulation component of the charge accumulation amount varying with the phonon frequency band is separated, and the charge oscillation frequency band associated with high-frequency thermal phonon scattering is identified; Among them, high-frequency thermal phonons refer to high-energy lattice vibration quanta in the gallium oxide lattice with a frequency in the range of 3.2-3.8THz (corresponding to the optical branch phonon mode). They dominate the heat transport process in the material through inelastic scattering with carriers and are the main carrier causing heat accumulation in the microstrip antenna module.

[0037] Based on the center frequency and bandwidth of the charge oscillation frequency band, the signal-to-noise ratio attenuation trend of the carrier-phonon coupling intensity distribution diagram in the corresponding frequency band is calculated to dynamically increase the sampling frequency of the corresponding frequency band to meet the time domain resolution requirements of the charge accumulation response; It should be noted that the detected charge oscillation signal is subjected to a fast Fourier transform to extract the center frequency and -3dB bandwidth of the 3.5-3.7THz frequency band. Next, the time-varying decay curve of the signal amplitude within this frequency band is analyzed to calculate the rate of signal-to-noise ratio (SNR) decline. Based on this SNR decay trend, a sampling frequency adjustment model is established. When the SNR drops to a preset threshold (e.g., 20dB), the sampling frequency is increased exponentially. Finally, the adjusted sampling frequency is fed back to the electrostatic probe array control system to ensure that the time-domain resolution of the charge accumulation response consistently meets the requirements for capturing high-frequency phonon scattering events.

[0038] The spatial coordinates of the gradient mutation region in the charge accumulation distribution cloud map are used to modify the interpolation grid density of the carrier migration trajectory cluster, so that the resolution of the three-dimensional map in the hotspot evolution trend prediction area can adaptively match the spatial distribution characteristics of the pyroelectric charge. According to the phase delay characteristics of the charge oscillation frequency band, the acquisition timing of the temperature field data and the transient photoconductivity signal is realigned to eliminate the time axis drift error of the carrier concentration distribution matrix caused by heat flow blocking.

[0039] In this embodiment, the phonon bandgap reconstruction area (X=2.5-5.5mm, Y=1.8-3.8mm) is scanned point by point to record the transient pyroelectric charge density (sampling rate 5MHz). When the charge density exceeds the threshold (greater than or equal to 8×10 9 e / m²), a charge accumulation distribution cloud map is generated. It is spatially convolved with the carrier migration map (time axis resolution 1ms) of the S102 embodiment to extract the nonlinear coupling coefficient matrix. The charge oscillation component in the 3.5-3.7THz frequency band is separated (bandwidth threshold > 0.15THz). At this time, the sampling frequency of the carrier-phonon coupling intensity distribution map is increased from 1MHz to 6MHz. Based on the gradient mutation area in the charge cloud map (change rate > 1.2×10 10 The interpolation grid density was increased from 100μm to 20μm using the spatial coordinates (X=4.2mm, Y=2.8mm) of the CMOS image sensor. A charge oscillation phase delay (120ns) was used to realign the timing of the infrared camera and photoconductive detector, eliminating time axis drift errors in the carrier concentration matrix and improving temperature rise suppression efficiency.

[0040] It should be noted that the present invention can accurately capture the spatiotemporal distribution characteristics of pyroelectric charges during the heat flow blocking process, invert the phonon-carrier interaction strength through charge oscillation frequency band analysis, and then adaptively adjust the sampling strategy of the monitoring system, effectively solving the technical problem of the asynchrony between signal acquisition and thermal evolution in traditional thermal management.

[0041] In this example, the heat dissipation control method of the gallium oxide microstrip antenna module further includes the following steps: Performing a three-dimensional fast Fourier transform on the charge cumulative distribution cloud map to separate the charge oscillation amplitude spectra corresponding to different phonon frequency bands, and extracting a set of characteristic frequency bands whose peak amplitude exceeds N times (preferably 3 times) the background noise; Perform frequency domain convolution on the characteristic frequency band set and the carrier-phonon coupling intensity distribution map to obtain the coupling intensity weight value of each characteristic frequency band in the heat flow control target area, and generate a frequency band-space mapping matrix with weight coefficients; Based on the three-dimensional topological model of the main heat flow diffusion path, the spatial synthesis direction of the phonon group velocity vectors of each characteristic frequency band in the mapping matrix is calculated to identify the synergistic frequency band combination that contributes most to heat transport; According to the center frequency interval and coupling strength weight value of the cooperative frequency band combination, the cooperative offset of the band gap center frequency of the phononic crystal heterojunction is solved by overlapping the integral of the phonon state density distribution, and a band gap control parameter group covering multiple frequency bands is generated; The bandgap control parameter group is input into the piezoelectric actuator drive system. According to the difference in elastic wave wavelengths corresponding to the cooperative frequency bands, the phase delay gradient distribution of the working cluster is dynamically reconstructed, so that the microstrain wave field can simultaneously block the propagation of thermal phonons in multiple characteristic frequency bands.

[0042] It should be noted that in order to solve the technical difficulties of the gallium oxide microstrip antenna module in the coordinated blocking of multi-band thermal phonons, in this embodiment, through frequency domain feature extraction and multi-physical field coupling analysis, accurate identification and control of complex heat flow paths are achieved, which can simultaneously suppress the heat transport contribution of phonons in multiple characteristic frequency bands. By generating coordinated band gap control parameters, the strain wave field generated by the piezoelectric actuator array forms a multi-band matching interference structure, thereby improving the blocking efficiency of the heat dissipation system for broadband thermal phonons, breaking through the limitations of single-band control, realizing the frequency domain dimension expansion of thermal management, and providing an effective solution for multi-mode heat flow control of high-frequency and high-power semiconductor devices.

[0043] In this example, the heat dissipation control method of the gallium oxide microstrip antenna module further includes the following steps: The onboard IMU sensor is used to obtain the acceleration frequency domain characteristics of the pitch / roll angles. Combined with the structural transfer function of the piezoelectric array installation position, the mechanical interference spectrum acting on each actuator unit (including the three-dimensional components of amplitude, frequency, and direction) is generated. The mechanical disturbance spectrum is decomposed into a normal vibration component perpendicular to the surface of the gallium oxide substrate and a tangential vibration component parallel to the main path of the heat flow. The equivalent inertial load induced by the two components on the piezoelectric unit is calculated using the lattice elastic modulus tensor. According to the spatial distribution of the equivalent inertial load on the piezoelectric array plane, the modulation coefficient of the strain wave phase is solved, and combined with the driving signal distribution matrix, a compensation gradient field characterized by dispersion phase delay is generated; The compensation gradient field is superimposed on the original phase delay parameter, the boundaries of the piezoelectric working cluster are re-divided, and the nonlinear mapping relationship of the rising edge of the timing trigger pulse is adjusted so that the curvature of the corrected synthetic wavefront always meets the preset angle constraint with the heat flow path; By real-time acquisition of the position drift of the nodal lines in the strain wave interference ripple pattern, the coherent interference stability index is calculated. When the coherent interference stability index is lower than the preset index threshold, the above steps are repeated to trigger closed-loop iteration until the mechanical interference is completely compensated.

[0044] For example, during high-speed maneuvers, the IMU sensor acquires vibration frequency characteristics. Combined with the piezoelectric array's transfer function (amplitude attenuation coefficient 0.7-1.3), a mechanical interference spectrum is generated (normal component amplitude 0.2-0.5g, tangential component 0.1-0.3g). Based on the β-Ga2O3 lattice elastic modulus (210GPa in the

[010] direction), the equivalent inertial load (normal 0.8-2.1N, tangential 0.4-1.2N) is calculated, and the phase modulation coefficient (0.15-0.35rad) is solved. A compensation gradient field (gradient strength 0.05-0.12rad / mm) is superimposed on the original phase parameters, re-demarcating the working cluster boundaries (offset 1.2-3.5mm), and adjusting the pulse rising edge mapping (nonlinear index adjusted to 1.8-2.2). A laser schlieren oscilloscope monitors nodal line drift (threshold ±0.1mm). When the coherent interferometry stability index falls below 0.85, closed-loop compensation is triggered.

[0045] It should be noted that this method addresses the technical issue of misaligned phonon bandgap control under dynamic conditions by sensing and compensating for the mechanical disturbances of the piezoelectric array caused by drone flight vibrations in real time. It effectively eliminates strain wave phase shifts caused by flight attitude changes, maintains the stability of the thermal phonon blocking structure, and ensures that heat dissipation control performance is unaffected by external vibrations.

[0046] like Figure 3 As shown, the gallium oxide microstrip antenna module includes: Gallium oxide substrate 1, made of β-phase single crystal gallium oxide material, with an aluminum nitride transition layer deposited on the surface to reduce lattice mismatch, and integrated with a microstrip antenna radiation element array; Thermo-electric coupling sensing layer 2, embedded in the gallium oxide substrate, includes a distributed thermocouple array and a transient photoconductive detector for real-time acquisition of temperature field data and carrier migration signals; Phononic crystal artificial heterojunction 3, composed of periodically arranged zinc oxide or gallium nitride composite columnar structures, with adjustable spacing between unit cells. Driven by a piezoelectric actuator array, micro-strain waves are generated to dynamically control the band gap distribution; The piezoelectric actuator array 4 is made of PMN-PT single crystal material and embedded in the gallium oxide substrate in a cross-shaped layout. Each unit is independently connected to the bandgap control weight coefficient calculation module; The non-contact electrostatic probe array 5 is suspended and mounted 50-200 μm above the gallium oxide substrate. It uses a diamond-coated needle tip to suppress charge interference and is used to scan the pyroelectric charge accumulation distribution.

[0047] Preferably, the operating frequency band of the microstrip antenna radiation element array is 24-40 GHz, and the element spacing is less than λ / 4 to suppress surface wave loss.

[0048] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0049] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0050] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0051] Those skilled in the art will appreciate that all or part of the steps of the above-mentioned method embodiments may be implemented by hardware associated with program instructions, and the aforementioned program may be stored in a computer-readable storage medium. When the program is executed, the program executes the steps of the above-mentioned method embodiments. The aforementioned storage medium includes various media that can store program codes, such as mobile storage devices, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0052] Alternatively, if the integrated units described above are implemented as software modules and sold or used as standalone products, they can also be stored on a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present invention, or the portion that contributes to the prior art, can be embodied in the form of a software product. This computer software product, stored on a storage medium, includes instructions for enabling a computer device (such as a personal computer, server, or network device) to execute all or part of the methods of the various embodiments of the present invention. The aforementioned storage media include various media capable of storing program code, such as removable storage devices, ROM, RAM, magnetic disks, or optical disks.

[0053] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A heat dissipation control method for a gallium oxide microstrip antenna module for use in drone detection equipment, characterized in that: The following steps are involved: S102: Acquire thermo-electric coupling characteristic data of the gallium oxide microstrip antenna module in real time, and construct a carrier migration distribution map with spatiotemporal resolution based on the thermo-electric coupling characteristic data; S104: dynamically calculating a band gap control weight coefficient of a phononic crystal artificial heterojunction embedded in a gallium oxide substrate based on the non-uniform density characteristics in the carrier migration spatiotemporal distribution map to match the reconstruction requirements of the heat flow conduction path; S106: Inputting the band gap control weight coefficient of the phononic crystal artificial heterojunction into the piezoelectric actuator array to drive it to generate micro-strain waves, reconstruct the phononic crystal heterojunction topology in three-dimensional space, and directionally block the thermal phonon propagation channel in the hot spot area; S108: Detecting the accumulated amount of pyroelectric charge on the surface of the gallium oxide substrate caused by the heat flow blocking, and reversely optimizing the sampling frequency and resolution of the carrier migration spatiotemporal distribution map according to its spatial distribution characteristics.

2. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 1, characterized in that: The S102 is specifically as follows: Acquiring real-time surface temperature field data of the gallium oxide substrate and synchronously collecting transient photoconductivity signals of the corresponding area, aligning the surface temperature field data with the transient photoconductivity signals in time and space to generate an initial carrier concentration distribution matrix; Based on the initial carrier concentration distribution matrix, the Monte Carlo simulation method is used to track the carrier scattering process. By counting the phonon collision events and the free flight time, the thermal migration component and the electric field driven component are separated. Selecting a group of high-energy carriers that scatter with high-frequency phonons from the thermally induced migration component as carriers that dominate heat transport; Based on the scattering phase angle and energy relaxation time of the high-energy carrier group, a migration rate tensor of purely thermally excited carriers is constructed, and a migration trajectory cluster evolving over time is generated through its non-equilibrium distribution function; Combined with the phonon spectrum characteristics of the gallium oxide lattice, the scattering probability of carriers and phonons in different frequency bands is determined according to the mobility tensor, and a carrier-phonon coupling intensity distribution map is constructed; Using the carrier-phonon coupling intensity distribution map, the migration trajectory clusters are subjected to frequency-domain weighted interpolation to generate a multidimensional carrier migration spatiotemporal distribution map in three-dimensional space, which includes the time axis, concentration gradient axis, and phonon frequency band axis. The topological fractal characteristics of the trajectory clusters are used to characterize the hotspot evolution trend.

3. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 1, characterized in that: The S104 is specifically as follows: Based on the spatial distribution of migration trajectory clusters in the carrier-phonon coupling intensity distribution map, the area where the carrier concentration gradient exceeds the preset concentration threshold is identified as the target area for heat flow control; Extract the phonon frequency band group that dominates heat transport in the target area of heat flow control, and determine the group velocity vector direction distribution characteristics of the phonon frequency band group in combination with the migration rate tensor; A three-dimensional topological model of the main heat flow diffusion path is established based on the directional distribution characteristics of the group velocity vector, and the phonon state density distribution along the path is determined based on the phonon spectrum characteristics of the gallium oxide lattice; Performing a convolution operation on the phonon state density distribution and the carrier-phonon coupling strength on the corresponding path to generate a band gap control weight coefficient, wherein the band gap control weight coefficient is used to determine the offset of the heterojunction band gap center frequency; According to the spatial variation rate of the band gap control weight coefficient, the arrangement period and rotation angle of the phononic crystal unit cell are dynamically adjusted so that the band gap distribution of the artificial heterojunction forms a matching barrier structure with the main path of heat flow diffusion.

4. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 1, characterized in that: The S106 is specifically as follows: Based on the spatial distribution characteristics of the bandgap control weight coefficient, the strain wave phase delay required by each piezoelectric unit is calculated to generate a drive signal distribution matrix that matches the main heat flow diffusion path; Dynamically dividing the working clusters of the piezoelectric actuators according to the phase gradient direction in the drive signal distribution matrix and allocating corresponding timing trigger pulses so that the microstrain waves generated by adjacent actuators form coherent interference in three-dimensional space; By real-time monitoring of the strain field distribution on the gallium oxide substrate surface, the strain wave node region that coincides with the trajectory of the high-energy carrier group in the carrier-phonon coupling intensity distribution diagram is extracted as the priority control target for phonon band gap reconstruction. Dynamically adjusting the driving voltage amplitude of the piezoelectric actuator working cluster according to the strain field intensity distribution of the priority control target, so that the microstrain wave forms an elastic wave gradient field in the gallium oxide lattice in the opposite direction to the thermally induced carrier migration direction; Based on the modulation effect of the elastic wave gradient field on the phonon group velocity vector, the scattering intensity distribution of the phononic crystal heterojunction is corrected in real time, and the resonant frequency of the piezoelectric actuator working cluster is adjusted through a feedback loop so that the reconstructed phonon band gap accurately covers the phonon frequency band that dominates heat transport.

5. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 4, characterized in that: Also includes: By monitoring the temperature gradient changes in the target area of heat flow control, the blocking effect of the reconstructed phononic crystal topology on the thermal phonon propagation channel is verified. If it does not meet expectations, the phase delay distribution of the piezoelectric actuator working cluster is re-optimized.

6. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 4, characterized in that: According to the phase gradient direction in the driving signal distribution matrix, the working clusters of the piezoelectric actuators are dynamically divided and corresponding timing trigger pulses are allocated so that the microstrain waves generated by adjacent actuators form coherent interference in three-dimensional space. Specifically: Extracting a phase difference sequence between adjacent piezoelectric actuator units, and dividing the phase difference sequence between adjacent piezoelectric actuator units into actuator working clusters with continuous phase changes based on a preset coherent interference threshold; For each working cluster, the phase delay compensation value of each unit within it is obtained to generate a corresponding timing trigger pulse code group, in which the pulse rising edge time and the phase compensation value are nonlinearly mapped. The excitation timing of each working cluster is controlled by the timing trigger pulse code group, so that the microstrain wavefront generated by adjacent actuator units forms a preset wavefront curvature during the propagation process; The strain wave interference fringe patterns at the boundary of each working cluster are monitored in real time, and the strong coupling regions where the spacing of the interference fringes is smaller than the lattice constant are extracted as the key areas for wave field control. According to the spatial distribution characteristics of the wave field control key area, the division boundary of the working cluster is dynamically adjusted so that the phase jump point between adjacent clusters is always located at the strain wave node line position; Based on the adjusted working cluster division scheme, the pulse width modulation parameters of the actuator units in each cluster are recalculated to ensure that the synthetic wavefront formed in the three-dimensional space maintains a preset angle relationship with the main path of heat flow diffusion.

7. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 1, characterized in that: The S108 is specifically as follows: A non-contact electrostatic probe array is used to scan point by point along the surface of the gallium oxide substrate, synchronously recording the transient pyroelectric charge density at each preset detection point, and generating a charge accumulation distribution cloud corresponding to the phonon band gap reconstruction area; Performing a spatial convolution operation on the charge accumulation distribution cloud map and the thermally induced carrier trajectory clusters in the carrier migration spatiotemporal distribution map to extract the nonlinear coupling coefficient matrix between the charge density gradient and the carrier migration rate tensor; Based on the nonlinear coupling coefficient matrix, the modulation component of the charge accumulation amount varying with the phonon frequency band is separated, and the charge oscillation frequency band associated with high-frequency thermal phonon scattering is identified; Based on the center frequency and bandwidth of the charge oscillation frequency band, the signal-to-noise ratio attenuation trend of the carrier-phonon coupling intensity distribution diagram in the corresponding frequency band is calculated to dynamically increase the sampling frequency of the corresponding frequency band to meet the time domain resolution requirements of the charge accumulation response; The spatial coordinates of the gradient mutation region in the charge accumulation distribution cloud map are used to modify the interpolation grid density of the carrier migration trajectory cluster, so that the resolution of the three-dimensional map in the hotspot evolution trend prediction area can adaptively match the spatial distribution characteristics of the pyroelectric charge. According to the phase delay characteristics of the charge oscillation frequency band, the acquisition timing of the temperature field data and the transient photoconductivity signal is realigned to eliminate the time axis drift error of the carrier concentration distribution matrix caused by heat flow blocking.

8. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 1, characterized in that: The gallium oxide microstrip antenna module includes: The gallium oxide substrate uses β-phase single-crystal gallium oxide material, with an aluminum nitride transition layer deposited on the surface to reduce lattice mismatch, and integrates a microstrip antenna radiating element array; Thermo-electric coupling sensing layer, embedded in the gallium oxide substrate, includes a distributed thermocouple array and a transient photoconductive detector for real-time acquisition of temperature field data and carrier migration signals; Phononic crystal artificial heterojunctions are composed of periodically arranged zinc oxide or gallium nitride composite columnar structures. The spacing between each unit cell is adjustable and driven by a piezoelectric actuator array to generate micro-strain waves to dynamically control the band gap distribution. The piezoelectric actuator array uses PMN-PT single crystal material and is embedded in a gallium oxide substrate in a cross-shaped layout. Each unit is independently connected to the bandgap control weight coefficient calculation module. A non-contact electrostatic probe array is suspended 50-200μm above the gallium oxide substrate and uses a diamond-coated tip to suppress charge interference. It is used to scan the pyroelectric charge accumulation distribution.

9. The heat dissipation control method for a gallium oxide microstrip antenna module for a drone detection device according to claim 8, characterized in that: The operating frequency band of the microstrip antenna radiation element array is 24-40 GHz, and the element spacing is less than λ / 4 to suppress surface wave loss.

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