Full-sea-depth antenna packaging assembly and packaging method thereof

Abstract

The invention discloses an underwater communication equipment technology, and aims to provide a full-sea-depth antenna packaging assembly and a packaging method thereof.The full-sea-depth antenna packaging assembly is characterized in that the full-sea-depth antenna packaging assembly comprises a cabin penetrating part, an antenna unit, an antenna protection cover, a vulcanization coating layer and a sealing ring, and the full-sea-depth antenna packaging assembly is used for achieving stable transmission of signals in a deep sea environment; the antenna unit is used for transmitting and receiving electromagnetic wave signals; a conductive channel is arranged in the cabin penetrating piece and used for being electrically connected with the antenna unit so that electric signals inside and outside the cabin can penetrate through the cabin. The whole antenna protection cover is cylindrical, the end part of the antenna protection cover is in transition connection to form a hemispherical shape, and an antenna placement area is formed in the antenna protection cover; the vulcanized coating layer is coated on the peripheral side of the joint of the antenna protection cover and the cabin penetrating piece; the sealing ring is arranged between the antenna protection cover and the cabin penetrating piece and is of a metal-rubber composite structure. The invention is suitable for the technical field of underwater communication equipment.

Description

Technical Field

[0001] The present invention relates to underwater communication equipment technology, and more specifically, to a full-sea-depth antenna packaging component and a packaging method thereof. Background Art

[0002] As ocean exploration and development continue to deepen, the demand for high-performance underwater communication equipment is growing. Traditional antenna packaging components face numerous challenges in deep-sea environments, such as high pressure, low temperatures, and corrosion, which severely impact their performance and service life. Most existing solutions fail to meet the reliability and stability requirements of full-depth ocean environments. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a full-sea-depth antenna packaging assembly and a packaging method thereof.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a full-sea-depth antenna packaging assembly, comprising a nacelle, an antenna unit, an antenna protective cover, a vulcanized coating, and a sealing ring, for achieving stable signal transmission in a deep-sea environment;

[0005] The antenna unit is used to transmit and receive electromagnetic wave signals;

[0006] The cabin penetration member is provided with a conductive channel inside for electrically connecting with the antenna unit to achieve penetration of electrical signals inside and outside the cabin;

[0007] The antenna protection cover is cylindrical in shape as a whole and its end portion is transitionally connected to form a hemispherical shape, and an antenna placement area is formed inside the cover;

[0008] The vulcanized coating layer is coated on the outer peripheral side of the connection between the antenna protection cover and the cabin penetration component;

[0009] The sealing ring is arranged between the antenna protection cover and the cabin penetration component, and is a metal-rubber composite structure.

[0010] The present invention is further configured as follows: the cabin penetration component is made of nickel-based alloy and titanium alloy materials; the antenna protection cover is made of titanium alloy and the surface is coated with a zirconium oxide ceramic layer; the vulcanized coating layer is composited by fluororubber and carbon nanotubes in a mass ratio of 7:3.

[0011] The present invention is further configured such that: the ratio of the wall thickness to the diameter of the antenna protection cover is 1:4-1:6, and the inner surface thereof is coated with a diamond-like carbon film having a thickness of 0.2-0.5 μm;

[0012] The sealing ring includes a beryllium copper alloy spring ring arranged on the inner side and a hydrogenated nitrile rubber arranged on the outer side;

[0013] The zirconium oxide ceramic layer has a honeycomb microporous structure, a porosity of 15-20%, and a pore size distribution of 50-200 nm.

[0014] The present invention is further configured as follows: the mass ratio of the nickel-based alloy to the titanium alloy is 3:1-5:1, wherein the nickel-based alloy contains 15-18wt% of molybdenum.

[0015] The present invention is further configured as follows: the sp of the diamond-like carbon film 3 Bond content ≥ 40%, its bonding strength with ceramic matrix ≥ 50N / mm 2 .

[0016] The present invention is further configured such that: the orientation degree of the carbon nanotubes in the sulfurized coating layer is ≥80%, and the orientation degree of the carbon nanotubes is distributed in a gradient along the thickness direction of the sulfurized coating layer.

[0017] A packaging method for a full-sea-depth antenna packaging assembly, characterized by comprising the following steps:

[0018] S1. Pretreatment stage: The contact surface of the penetration part is subjected to laser roughening treatment, and the surface roughness is controlled at Ra1.6-3.2μm;

[0019] S2. Electrical connection: Laser weld the feed end of the antenna unit to the conductive channel of the cabin penetration component, and control the welding energy at 20-30J / mm 2 After welding is completed, the weld quality is inspected using an X-ray flaw detector; when the grayscale contrast of the inspection image is ≥85% and the pore diameter is ≤0.05mm, the process goes to S3; otherwise, the process returns to S2 and the welding is restarted;

[0020] S3. Protective cover assembly: The antenna protective cover, pre-installed with a sealing ring, is press-fitted axially onto the piercing component. The inner sealing ring is a beryllium copper alloy spring ring, and the outer sealing ring is hydrogenated nitrile rubber. The pressing force curve is monitored in real time during the press-fitting process. When the peak pressing force is ≥15% or <20% of the theoretical value, an emergency stop is initiated.

[0021] S4, Vulcanization coating: inject the vulcanized rubber into the designated position in the vulcanization mold, and control the mold temperature at 150±5℃;

[0022] S5. Curing treatment: The assembled components are then placed in a vulcanization mold for pressure molding. The pressure during the holding stage is maintained at 12-15 MPa. The temperature is raised to 180°C in a stepwise manner and kept for 2 hours. The temperature is then lowered to room temperature at a rate of ≤5°C / min.

[0023] S6. Pressure test: After vulcanization is completed, the finished product is removed from the vulcanization mold, and then placed in a simulation chamber. A hydrostatic pressure of 110 MPa is applied in the simulation chamber and maintained for 24 hours.

[0024] The strain change is monitored in real time by the FBG sensor. If the residual strain is ≤0.2%, it is judged as qualified. Otherwise, it returns to S4 for re-vulcanization.

[0025] S7. Impedance matching debugging: Use vector network analyzer to optimize the antenna standing wave ratio to below 1.5;

[0026] S8, Environmental adaptability test: 200 hot and cold shocks under 2-35℃ temperature cycle conditions;

[0027] S9. Final detection: Comprehensively evaluate the communication rate, bit error rate and signal stability indicators.

[0028] The present invention is further configured as follows: in S8, the temperature change rate is ≥10°C / min, and each cycle includes a 30-min stabilization period.

[0029] The present invention is further configured as follows: in said S9, the communication quality evaluation must simultaneously meet the following requirements: transmission loss ≤ 3dB / m in the 100kHz-30MHz frequency band, and signal-to-noise ratio degradation ≤ 15%.

[0030] The beneficial effects of the present invention are:

[0031] 1. Compared with the existing technology, the full-sea-depth antenna packaging assembly of the present invention achieves reliable signal transmission in extreme deep-sea environments through the coordinated design of the penetration component, antenna protection cover and sulfurized coating layer; the penetration component, which is a composite of nickel-based alloy and titanium alloy, combines high strength and corrosion resistance, and the internal conductive channel design ensures the stability of signal penetration; the cylindrical and hemispherical titanium alloy antenna protection cover is equipped with a zirconium oxide ceramic coating, which not only meets the requirements of fluid mechanics but also can withstand the high pressure of the deep sea; the sulfurized coating layer composed of fluororubber and carbon nanotubes forms a flexible transition zone at the interface, which not only ensures sealing but also effectively alleviates the thermal stress differences between different materials; the dual sealing mechanism of the metal-rubber composite sealing ring solves the failure problem of traditional single-material seals under high pressure.

[0032] 2. In the full-sea-depth antenna packaging assembly of the present invention, the antenna protective cover wall thickness to diameter ratio design of 1:4-1:6 achieves a balance between structural strength and weight optimization. When the ratio is greater than 1:6, it will lead to material waste and increase fluid resistance. When the ratio is greater than 1:4, although the weight is reduced, the compressive strength is significantly reduced. The inner surface coating of the diamond-like carbon film significantly reduces signal transmission loss, and its specific thickness range can achieve both wave transmittance and wear resistance. The composite sealing structure of beryllium copper alloy spring coil and hydrogenated nitrile rubber forms a dynamic pressure compensation mechanism through the metal parts providing elastic restoring force and the rubber parts achieving contact sealing. When the porosity of the honeycomb zirconia ceramic layer is controlled at 15-20%, it can both ensure electromagnetic wave transmittance and maintain structural integrity.

[0033] 3. In the present invention, the mass ratio of nickel-based alloy to titanium alloy of 3:1-5:1 optimizes the relationship between material performance and cost; when the ratio is lower than 3:1, the excessive proportion of titanium alloy leads to a decrease in conductivity; when the ratio is higher than 5:1, the creep resistance of the material is sacrificed; nickel-based alloys with a molybdenum content of 15-18wt% can form a stable passivation film in a deep-sea environment. This composition range can prevent chloride ion penetration corrosion and avoid the increased brittleness caused by excessive alloying elements; this material combination enables the penetration component to maintain high strength while having a thermal expansion coefficient that matches the antenna unit.

[0034] 4. The present invention has a simple and reasonable structure, is easy to manufacture, and is easy to operate. It avoids the defects of the prior art and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a structural diagram of the full-sea-depth antenna packaging assembly of the present invention.

[0036] Reference numerals in the figure: 1. cabin penetration part; 2. antenna protection cover; 3. vulcanized coating layer; 4. sealing ring; 5. antenna placement area. DETAILED DESCRIPTION

[0037] Reference Figure 1 The full-sea-depth antenna packaging assembly and the packaging method thereof are further described in the following embodiments.

[0038] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to illustrate the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0039] Moreover, relational terms such as “first” and “second” are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0040] Figure 1 The full-sea-depth antenna package assembly shown includes a nacelle 1, an antenna unit, an antenna protective cover 2, a vulcanized coating 3, and a sealing ring 4, and is used to achieve stable signal transmission in a deep-sea environment.

[0041] The antenna unit is used to transmit and receive electromagnetic wave signals;

[0042] The cabin penetration member 1 is provided with a conductive channel inside for electrically connecting with the antenna unit to achieve penetration of electrical signals inside and outside the cabin;

[0043] The antenna protection cover 2 is cylindrical in shape and has a hemispherical end transition connection, and an antenna placement area 5 is formed inside the antenna protection cover 2; the antenna layout and shielding design are optimized to reduce external interference and improve communication quality;

[0044] The vulcanized coating layer 3 is coated on the outer peripheral side of the connection between the antenna protection cover 2 and the cabin penetration component 1;

[0045] The sealing ring 4 is provided between the antenna protection cover 2 and the cabin penetration member 1 and is a metal-rubber composite structure;

[0046] The cabin penetration member 1 is made of nickel-based alloy and titanium alloy; the antenna protection cover 2 is made of titanium alloy and coated with a zirconium oxide ceramic layer; the sulfurized coating layer 3 is made of fluororubber and carbon nanotubes in a mass ratio of 7:3;

[0047] The coordinated design of the penetration component (1), antenna cover (2), and vulcanized coating (3) enables reliable signal transmission in the extreme deep-sea environment. The penetration component (1), a composite of nickel-based alloy and titanium alloy, combines high strength and corrosion resistance, and its internal conductive channel ensures stable signal penetration. The cylindrical and hemispherical titanium alloy antenna cover (2), coupled with a zirconia ceramic coating, meets fluid dynamics requirements while withstanding deep-sea pressure. The fluororubber-carbon nanotube composite vulcanized coating (3) creates a flexible transition zone at the interface, ensuring sealing while effectively mitigating thermal stress differences between the different materials. The dual sealing mechanism of the metal-rubber composite seal (4) overcomes the failure of traditional single-material seals under high pressure. Alternatively, the penetration component can be constructed solely of titanium alloy, the antenna cover can be constructed of GREP, and the vulcanized coating can be constructed solely of fluororubber.

[0048] The ratio of the wall thickness to the diameter of the antenna protection cover 2 is 1:4-1:6, and its inner surface is coated with a diamond-like carbon film with a thickness of 0.2-0.5 μm;

[0049] The sealing ring 4 includes a beryllium copper alloy spring ring arranged on the inner side and a hydrogenated nitrile rubber arranged on the outer side;

[0050] The zirconia ceramic layer has a honeycomb microporous structure, a porosity of 15-20%, and a pore size distribution of 50-200 nm;

[0051] The antenna protection cover 2 wall thickness and diameter ratio design of 1:4-1:6 achieves a balance between structural strength and weight optimization; when the ratio is greater than 1:6, it will lead to material waste and increase fluid resistance; when the ratio is greater than 1:4, although the weight is reduced, the pressure resistance is significantly reduced; the inner surface coating of the diamond-like carbon film greatly reduces signal transmission loss, and its specific thickness range can take into account both wave transmittance and wear resistance; the composite sealing structure of beryllium copper alloy spring coil and hydrogenated nitrile rubber provides elastic restoring force through metal parts and realizes contact sealing through rubber parts, forming a dynamic pressure compensation mechanism; when the porosity of the honeycomb zirconia ceramic layer is controlled at 15-20%, it can both ensure electromagnetic wave transmittance and maintain structural integrity.

[0052] The mass ratio of the nickel-based alloy to the titanium alloy is 3:1-5:1, wherein the nickel-based alloy contains 15-18 wt% of molybdenum;

[0053] The mass ratio of nickel-based alloy to titanium alloy of 3:1-5:1 optimizes the relationship between material performance and cost; when the ratio is lower than 3:1, the excessive proportion of titanium alloy leads to a decrease in conductivity; when it is higher than 5:1, the creep resistance of the material is sacrificed; nickel-based alloys with a molybdenum content of 15-18wt% can form a stable passivation film in a deep-sea environment. This composition range can prevent chloride ion penetration corrosion and avoid the increased brittleness caused by excessive alloying elements; this material combination enables the cabin penetration component 1 to maintain high strength while having a thermal expansion coefficient that matches the antenna unit.

[0054] The sp 3 Bond content ≥ 40%, its bonding strength with ceramic matrix ≥ 50N / mm 2 ;

[0055] sp 3 Diamond-like carbon films with a bond content of ≥40% form a stable tetrahedral structure network. This bonding state ensures that the film has a hardness close to that of diamond and excellent chemical inertness; with ceramic substrates ≥50N / mm 2 The bonding strength prevents the film from peeling off under high-pressure environments, and this strength threshold can withstand the common mechanical impact loads of deep-sea equipment; this interface bonding characteristic enables the inner surface of the antenna protective cover 2 to meet both signal transmission requirements and long-term corrosion protection requirements, solving the electromagnetic interference problem existing in traditional metal coatings.

[0056] The orientation degree of the carbon nanotubes in the sulfurized coating layer 3 is ≥80%, and the orientation degree of the carbon nanotubes is gradiently distributed along the thickness direction of the sulfurized coating layer 3;

[0057] The gradient distribution structure with a carbon nanotube orientation degree of ≥80% gives the vulcanized coating layer 3 anisotropic mechanical properties; the gradient change along the thickness direction realizes a smooth transition from the rigid connection area to the flexible sealing area. This design significantly improves the fatigue life of the interface; the highly oriented carbon nanotube network forms an efficient heat conduction path, which promptly dissipates the local heat generated by the antenna unit; the gradient distribution structure also optimizes the dielectric properties of the composite material and reduces the reflection loss of electromagnetic waves at the interface.

[0058] A packaging method for a full-sea-depth antenna packaging assembly, characterized by comprising the following steps:

[0059] S1, pre-treatment stage: laser roughening treatment is performed on the contact surface of the cabin penetration component 1, and the surface roughness is controlled within Ra1.6-3.2μm;

[0060] S2. Electrical connection: Laser weld the feed end of the antenna unit to the conductive path of the cabin penetration component 1. The welding energy is controlled at 20-30 J / mm 2 After welding is completed, the weld quality is inspected using an X-ray flaw detector; when the grayscale contrast of the inspection image is ≥85% and the pore diameter is ≤0.05mm, the process goes to S3; otherwise, the process returns to S2 and the welding is restarted;

[0061] S3. Protective cover assembly: The antenna protective cover 2, pre-installed with a sealing ring 4, is axially press-fitted onto the nacelle 1. The inner sealing ring 4 is a beryllium copper alloy spring ring, and the outer sealing ring 4 is hydrogenated nitrile rubber. During the press-fitting process, the press-fitting force curve is monitored in real time. When the peak value of the press-fitting force is ≥15% or <20% of the theoretical value, an emergency stop is initiated.

[0062] S4, Vulcanization coating: inject the vulcanized rubber into the designated position in the vulcanization mold, and control the mold temperature at 150±5℃;

[0063] S5. Curing treatment: The assembled components are then placed in a vulcanization mold for pressure molding. The pressure during the holding stage is maintained at 12-15 MPa. The temperature is raised to 180°C in a stepwise manner and kept for 2 hours. The temperature is then lowered to room temperature at a rate of ≤5°C / min.

[0064] S6. Pressure test: After vulcanization is completed, the finished product is removed from the vulcanization mold, and then placed in a simulation chamber. A hydrostatic pressure of 110 MPa is applied in the simulation chamber and maintained for 24 hours.

[0065] The strain change is monitored in real time by the FBG sensor. If the residual strain is ≤0.2%, it is judged as qualified. Otherwise, it returns to S4 for re-vulcanization.

[0066] S7. Impedance matching debugging: Use vector network analyzer to optimize the antenna standing wave ratio to below 1.5;

[0067] S8, Environmental adaptability test: 200 hot and cold shocks under 2-35℃ temperature cycle conditions;

[0068] S9, Final test: Comprehensively evaluate the communication rate, bit error rate and signal stability indicators;

[0069] This packaging method ensures component reliability through nine steps of precise process control; the specific roughness of the surface formed by laser texturing treatment greatly improves the adhesion of the subsequent vulcanization layer; the phased welding quality inspection system eliminates hidden defects, and the dual parameter judgment of X-ray and grayscale value is more reliable than single detection; the real-time monitoring technology of the press force curve can identify microscopic misalignment during the assembly process and avoid potential sealing failure; the stepped heating and controlled cooling process eliminates residual stress within the material, and the strain monitoring of the FBG sensor provides a quantitative basis for pressure testing.

[0070] In S8, the temperature change rate is ≥10°C / min, and each cycle includes a 30-min stabilization period;

[0071] A temperature change rate of ≥10°C / min combined with a 30-minute stabilization period effectively simulates the actual operating conditions of deep-sea equipment. Rapid temperature changes test the thermal matching performance of material interfaces, while the stabilization period exposes potential thermal fatigue defects. These stringent test conditions can screen out defective products with microcracks or poor bonding, ensuring the long-term stability of the equipment in the sudden temperature changes of the deep sea.

[0072] In S9, the communication quality assessment must simultaneously meet the following requirements: transmission loss ≤ 3 dB / m in the 100 kHz-30 MHz frequency band, and signal-to-noise ratio degradation ≤ 15%;

[0073] A dual-metric communication quality assessment system comprehensively verifies device performance. A transmission loss threshold of ≤3dB / m ensures signal transmission efficiency, a threshold that covers the needs of most deep-sea communication scenarios. A signal-to-noise ratio degradation limit of ≤15% prevents signal quality degradation caused by environmental interference. This comprehensive evaluation method better reflects the device's actual operating performance than single-parameter testing.

[0074] The present invention has a simple and reasonable structure, is easy to manufacture, and is simple to operate. It avoids the defects of the existing technology and is suitable for popularization and application. In addition, the modular structure facilitates assembly, disassembly and maintenance, and adapts to the needs of different application scenarios. It significantly improves the reliability and stability of the antenna unit in extreme deep-sea environments.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A full-sea-depth antenna package assembly, characterized by: The invention comprises a cabin penetration component (1), an antenna unit, an antenna protection cover (2), a vulcanized coating layer (3) and a sealing ring (4), and is used for realizing stable signal transmission in a deep-sea environment; The antenna unit is used to transmit and receive electromagnetic wave signals; The cabin penetration member (1) is provided with a conductive channel inside, which is used to electrically connect with the antenna unit so as to achieve the penetration of electrical signals inside and outside the cabin; The antenna protection cover (2) is cylindrical in shape as a whole and has a transition connection at its end to form a hemispherical shape, and an antenna placement area (5) is formed inside the antenna protection cover; The vulcanized coating layer (3) is coated on the outer peripheral side of the connection between the antenna protection cover (2) and the cabin penetration component (1); The sealing ring (4) is arranged between the antenna protection cover (2) and the cabin penetration component (1), and is a metal-rubber composite structure.

2. The full-sea-depth antenna package assembly according to claim 1, characterized in that: The cabin penetration component (1) is made of nickel-based alloy and titanium alloy; the antenna protection cover (2) is made of titanium alloy and is plated with a zirconium oxide ceramic layer on its surface; and the sulfide coating layer (3) is composited with fluororubber and carbon nanotubes in a mass ratio of 7:

3.

3. The full-sea-depth antenna package assembly according to claim 1, characterized in that: The ratio of the wall thickness to the diameter of the antenna protection cover (2) is 1:4-1:6, and the inner surface thereof is coated with a diamond-like carbon film with a thickness of 0.2-0.5 μm; The sealing ring (4) comprises a beryllium copper alloy spring ring arranged on the inner side and a hydrogenated nitrile rubber arranged on the outer side; The zirconium oxide ceramic layer has a honeycomb microporous structure, a porosity of 15-20%, and a pore size distribution of 50-200 nm.

4. The full-sea-depth antenna package assembly according to claim 2, characterized in that: The mass ratio of the nickel-based alloy to the titanium alloy is 3:1-5:1, wherein the nickel-based alloy contains 15-18 wt % of molybdenum.

5. The full-sea-depth antenna package assembly according to claim 3, characterized in that: The sp 3 Bond content ≥ 40%, its bonding strength with ceramic matrix ≥ 50N / mm 2 .

6. The full-sea-depth antenna package assembly according to claim 2, characterized in that: The orientation degree of the carbon nanotubes in the sulfurized coating layer (3) is ≥80%, and is distributed in a gradient along the thickness direction of the sulfurized coating layer (3).

7. A packaging method applicable to the full sea depth antenna packaging assembly according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, pre-treatment stage: the contact surface of the cabin penetration component (1) is subjected to laser roughening treatment, and the surface roughness is controlled within Ra1.6-3.2μm; S2. Electrical connection: Laser weld the feed end of the antenna unit to the conductive path of the cabin penetration component (1). The welding energy is controlled at 20-30 J / mm. 2 After welding is completed, the weld quality is inspected using an X-ray flaw detector; when the grayscale contrast of the inspection image is ≥85% and the pore diameter is ≤0.05mm, the process goes to S3; otherwise, the process returns to S2 and the welding is restarted; S3, assembling the protective cover: press-fitting the antenna protective cover (2) pre-installed with the sealing ring (4) to the cabin penetration part (1) along the axial direction, wherein the inner sealing ring (4) is a beryllium copper alloy spring ring, and the outer sealing ring (4) is hydrogenated nitrile rubber, and the pressing force curve is monitored in real time during the pressing process; When the peak value of the pressing force is ≥15% of the theoretical value or <20% of the theoretical value, the emergency stop is initiated; S4, Vulcanization coating: inject the vulcanized rubber into the designated position in the vulcanization mold, and control the mold temperature at 150±5℃; S5. Curing treatment: The assembled components are then placed in a vulcanization mold for pressure molding. The pressure during the holding stage is maintained at 12-15 MPa. The temperature is raised to 180°C in a stepwise manner and kept for 2 hours. The temperature is then lowered to room temperature at a rate of ≤5°C / min. S6. Pressure test: After vulcanization is completed, the finished product is removed from the vulcanization mold, and then placed in a simulation chamber. A hydrostatic pressure of 110 MPa is applied in the simulation chamber and maintained for 24 hours. The strain change is monitored in real time by the FBG sensor. If the residual strain is ≤0.2%, it is judged as qualified. Otherwise, it returns to S4 for re-vulcanization. S7. Impedance matching debugging: Use vector network analyzer to optimize the antenna standing wave ratio to below 1.5; S8, Environmental adaptability test: 200 hot and cold shocks under 2-35℃ temperature cycle conditions; S9. Final detection: Comprehensively evaluate the communication rate, bit error rate and signal stability indicators.

8. The packaging method of the full-sea-depth antenna packaging assembly according to claim 7, characterized in that: In S8, the temperature change rate is ≥10°C / min, and each cycle includes a 30-min stabilization period.

9. The packaging method of the full sea depth antenna packaging assembly according to claim 7, characterized in that: In the above-mentioned S9, the communication quality evaluation must simultaneously meet the following requirements: transmission loss ≤ 3dB / m in the 100kHz-30MHz frequency band, and signal-to-noise ratio degradation ≤ 15%.

Images