Production method of antenna oscillator, antenna oscillator and communication equipment

Abstract

The invention provides an antenna oscillator production method, an antenna oscillator and communication equipment, and the method comprises the following steps: S1, material pretreatment: selecting a high-conductivity titanium-aluminum alloy plate, eliminating initial stress through vacuum annealing, and after annealing, removing an oxide layer and organic matters through plasma cleaning equipment; and S2, composite forming: carrying out stamping and stretching forming on the titanium-aluminum alloy plate by using a die to form an antenna oscillator, and integrating a fiber bragg grating sensor in the stamping process to monitor the stress distribution of the material in real time. According to the production method of the antenna oscillator, the antenna oscillator and the communication equipment, the annealing and cooling processes are accurately controlled, and the stress distribution is monitored in real time by using the FBG sensor, so that the production period of the antenna oscillator is remarkably shortened, the waiting time in the production process is reduced, and the production efficiency is improved. The problems of deformation, cracking and the like caused by stress concentration in the machining process of the antenna oscillator are greatly reduced, the rejection rate is reduced, and waste of raw materials and energy is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna vibrator production, and in particular to a production method of an antenna vibrator, an antenna vibrator and communication equipment. Background Art

[0002] The antenna vibrator is simply a metal conductor that transmits and receives high-frequency oscillation signals. It is the most basic unit of the antenna. It has the function of guiding and amplifying electromagnetic waves, which can make the electromagnetic signals received by the antenna stronger. In the transmitting mode, the antenna vibrator converts electric current into electromagnetic waves; in the receiving mode, it converts electromagnetic waves into electric current.

[0003] Antenna vibrators have various shapes and structures, some are rod-shaped, and some have more complex structures. Common vibrator types include half-wave vibrators and full-wave vibrators. The length of a half-wave vibrator is about half of the signal wavelength, while the length of a full-wave vibrator is equivalent to the full wavelength of the signal. When an alternating current flows on the wire, electromagnetic wave radiation can be generated. The design of the antenna vibrator needs to consider wavelength matching, current distribution and resonance characteristics to achieve efficient signal transmission.

[0004] Chinese patent CN102544711B discloses a production method, antenna vibrator, and communication equipment for an antenna vibrator. This technical solution utilizes an integrated stamping process to form the antenna vibrator. This results in high structural strength, minimal product deformation, stable dimensions, and a high yield rate, reducing production costs. Furthermore, the processability is fundamentally improved, making it suitable for general stamping manufacturers. This significantly reduces production costs compared to existing technologies, while also preventing burrs on the antenna vibrator's surface, which impacts the antenna's passive intermodulation (PIM) performance.

[0005] However, the production method of the antenna vibrator and the stamping step are likely to aggravate the internal stress accumulation of the material, affect the dimensional stability, and unevenly distribute the residual stress, resulting in warping and deformation of the vibrator arm, which is prone to microcracks in the vibrator arm and affects the consistency of the antenna resonant frequency.

[0006] Therefore, it is necessary to provide a new production method of antenna vibrator, antenna vibrator and communication equipment to solve the above technical problems. Summary of the Invention

[0007] The present invention provides a production method of an antenna vibrator, an antenna vibrator and communication equipment, and solves the technical problem that the stamping step in the production method of the antenna vibrator easily aggravates the internal stress accumulation of the material, affects the dimensional stability, and causes uneven residual stress distribution, resulting in warping and deformation of the vibrator arm.

[0008] In order to solve the above technical problems, the present invention provides a method for producing an antenna element, comprising the following steps:

[0009] S1. Material pretreatment: Select high-conductivity titanium-aluminum alloy plates, eliminate the initial stress through vacuum annealing. After annealing, use a plasma cleaning device to remove the oxide layer and organic substances.

[0010] S2. Composite molding: Use a mold to stamp and stretch the titanium-aluminum alloy plate to form an antenna element. Integrate a fiber Bragg grating sensor during the stamping process to real-time monitor the stress distribution of the material, and dynamically adjust the stamping parameters according to the stress distribution results.

[0011] S3. Blanking process: Use femtosecond laser cutting to punch out grooves on the surface of the antenna element to form the element arms.

[0012] S4. Surface treatment: Use a magnetron sputtering device to spray a graphene coating on the inner and outer surfaces of the antenna element, and use a polishing device to polish the surface of the antenna element.

[0013] Preferably, in S1, under an argon atmosphere, heat at 850 °C and hold for 3 h.

[0014] Preferably, in S1, after annealing is completed, control the cooling rate ≤ 10 °C / min.

[0015] Preferably, in S1, use a mixed gas of Ar + 2% - 5% O2 for cleaning, and the cleaning time is 5 min.

[0016] Preferably, in S2, embed an FBG optical fiber array in the stamping die with a spacing of 10 mm, use a split die, and coat the cavity surface with a diamond-like carbon coating.

[0017] Preferably, in S3, set an integrated infrared thermal imager to real-time detect the molten pool temperature, and during the cutting process, introduce helium for auxiliary cooling.

[0018] Preferably, in S4, the thickness of the graphene coating is 100 nm, the pressure of the polishing head is 5 psi, the rotation speed is 60 rpm, and the time is 2 min.

[0019] An antenna element, including an antenna element body integrally formed by stamping a titanium-aluminum alloy plate. Grooves for forming a plurality of element arms are provided on the surface of the antenna element, and the plurality of element arms are annularly and evenly spaced along the surface of the antenna element body.

[0020] Preferably, a graphene coating is provided on the surface of the antenna element body, and the graphene coating covers the surface of the antenna element body.

[0021] A communication device, the communication device having the antenna element as described above.

[0022] Compared with related technologies, the production method of the antenna element, the antenna element, and the communication device provided by the present invention have the following beneficial effects:

[0023] The present invention provides a production method of an antenna element, the antenna element, and a communication device. By selecting a high-conductivity titanium-aluminum alloy sheet, the initial stress is eliminated through vacuum annealing. After annealing, a plasma cleaning device is used to remove the oxide layer and organic matter. Then, a mold is used to stamp and stretch the titanium-aluminum alloy sheet to form the antenna element. During the stamping process, a fiber Bragg grating sensor is integrated to real-time monitor the stress distribution of the material, and the stamping parameters are dynamically adjusted according to the stress distribution results. A femtosecond laser is used to cut a slot on the surface of the antenna element to form the oscillator arm. Finally, a graphene coating is sprayed on the inner and outer surfaces of the antenna element through a magnetron sputtering device, and a polishing device is used to polish the surface of the antenna element to obtain the finished antenna element. By precisely controlling the annealing and cooling processes and using the FBG sensor to real-time monitor the stress distribution, the production cycle of the antenna element is significantly shortened, which not only reduces the waiting time during the production process but also improves the overall efficiency of the production line. The application of the stress elimination technology greatly reduces problems such as deformation and cracking caused by stress concentration during the processing of the antenna element, which not only reduces the scrap rate, reduces the waste of raw materials and energy, and thus reduces the production cost. Through single-time composite stamping, dynamic stress regulation, material gradient treatment, and servo intelligent compensation, the problems of material fatigue and dimensional instability caused by multiple stamping are completely solved. While reducing the number of processes, the improved process realizes a comprehensive improvement in the life, accuracy, and production efficiency of the oscillator arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a preferred embodiment of the antenna element provided by the present invention;

[0025] Figure 2 For Figure 1 The top view structural diagram of the antenna element shown;

[0026] Figure 3 For Figure 1 The schematic diagram of the antenna element body and the graphene coating shown.

[0027] Reference numerals in the figure: 1, antenna element body; 2, slot; 3, graphene coating; 4, oscillator arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present invention will be further described below in conjunction with the drawings and embodiments.

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 , wherein, Figure 1Schematic diagram of a preferred embodiment of the antenna element provided by the present invention; Figure 2 is Figure 1 Schematic top view of the antenna element shown; Figure 3 is Figure 1 Schematic diagram of the antenna element body and the graphene coating shown. The production method of the antenna element includes the following steps:

[0030] S1. Material pretreatment: Select high-conductivity titanium-aluminum alloy sheets, eliminate the initial stress through vacuum annealing. After annealing, use a plasma cleaning device to remove the oxide layer and organic substances.

[0031] During the vacuum annealing in the material pretreatment stage, the initial stress in the high-conductivity titanium-aluminum alloy sheets is effectively released.

[0032] It ensures that the antenna element is not easily deformed due to stress concentration during subsequent processing, thereby improving the overall stability of the structure, which is crucial for ensuring the dimensional accuracy and shape consistency of the antenna element and directly affects the performance of its electromagnetic properties.

[0033] S2. Composite molding: Use a mold to stamp and stretch the titanium-aluminum alloy sheet to form the antenna element. Integrate a fiber Bragg grating sensor during the stamping process to real-time monitor the material stress distribution and dynamically adjust the stamping parameters according to the stress distribution results.

[0034] During the composite molding stage, the integrated fiber Bragg grating (FBG) sensor real-time monitors the material stress distribution and dynamically adjusts the stamping parameters accordingly to ensure uniform stress distribution during the forming process of the antenna element and avoid the degradation of electromagnetic performance caused by stress concentration.

[0035] By precisely controlling the stress state, the key electromagnetic parameters such as the gain, directivity, and polarization of the antenna element are optimized, thereby improving the overall performance of the communication system.

[0036] S3. Blanking processing: Use femtosecond laser cutting to punch out the slots forming the oscillator arms on the surface of the antenna element;

[0037] S4. Surface treatment: Use a magnetron sputtering device to spray a graphene coating on the inner and outer surfaces of the antenna element, and use a polishing device to polish the surface of the antenna element.

[0038] During the surface treatment stage, the graphene coating sprayed by magnetron sputtering not only enhances the wear resistance and corrosion resistance of the antenna element but also further reduces stress concentration and fatigue damage caused by environmental factors.

[0039] The tight combination of the coating and the substrate effectively isolates the antenna element from the external environment erosion and extends its service life.

[0040] In S1, under an argon atmosphere, heat at 850 °C and hold for 3 h.

[0041] In S1, after annealing is completed, control the cooling rate ≤ 10 °C / min.

[0042] In S1, use a mixed gas of Ar + 2% - 5% O2 for cleaning, and the cleaning time is 5 min.

[0043] In S2, embed an FBG optical fiber array in the stamping die with a spacing of 10 mm. Use a split die, and the cavity surface is coated with a diamond-like carbon coating.

[0044] In S3, set up an integrated infrared thermal imager to detect the molten pool temperature in real time. During the cutting process, introduce helium for auxiliary cooling.

[0045] In S4, the thickness of the graphene coating is 100 nm, the pressure of the polishing head is 5 psi, the rotation speed is 60 rpm, and the time is 2 min.

[0046] By precisely controlling the annealing and cooling processes and using FBG sensors to monitor the stress distribution in real time, the production cycle of the antenna element is significantly shortened, which not only reduces the waiting time during the production process but also improves the overall efficiency of the production line.

[0047] The application of stress relief technology significantly reduces problems such as deformation and cracking caused by stress concentration during the processing of antenna elements. This not only reduces the scrap rate but also reduces the waste of raw materials and energy, thereby reducing the production cost.

[0048] The use of advanced technologies such as femtosecond laser cutting and magnetron sputtering not only improves the processing accuracy and efficiency but also reduces environmental pollution. These technologies, with their high-precision and low-energy consumption characteristics, promote the rational use of resources and sustainable development.

[0049] Processes such as vacuum annealing and plasma cleaning are all carried out in a closed environment, reducing the emission of harmful gases.

[0050] During the process of magnetron sputtering and spraying the graphene coating, environmentally friendly coatings and processes are also used to reduce environmental pollution.

[0051] By optimizing the production process and adopting advanced processing technologies, the production process of the antenna element is more green and environmentally friendly. This not only conforms to the current global green and low-carbon concept but also establishes a good social image for the enterprise.

[0052] Through effective stress relief and surface treatment, the fatigue resistance and corrosion resistance of the antenna element are significantly improved, enabling the product to maintain good working conditions in harsh environments and extending its service life.

[0053] Due to the improved structural stability and durability of the antenna element, its maintenance frequency and cost are correspondingly reduced, saving maintenance costs and enhancing the competitiveness of the product.

[0054] An antenna element, comprising an antenna element body 1 integrally formed by stamping a titanium-aluminum alloy plate. Slots 2 for forming a plurality of radiating arms 4 are formed on the surface of the antenna element 1, and the plurality of radiating arms 4 are evenly distributed in a circular pattern along the surface of the antenna element body 1 at intervals.

[0055] A graphene coating 3 is coated on the surface of the antenna element body 1, and the graphene coating 3 covers the surface of the antenna element body 1.

[0056] A communication device, which has the above-mentioned antenna element.

[0057] Through single-time compound stamping, dynamic stress regulation, material gradient treatment, and servo intelligent compensation, the problems of material fatigue and dimensional instability caused by multiple stampings are completely solved. While reducing the number of processes, the improved process realizes a comprehensive improvement in the life, precision, and production efficiency of the radiating arms, and is especially suitable for the large-scale manufacturing of high-frequency millimeter-wave communication antennas (such as 28 GHz / 39 GHz), providing technical support for the requirements of antenna miniaturization and high reliability.

[0058] The production method of the antenna element, the antenna element, and the working principle of the communication device provided by the present invention are as follows:

[0059] S1. Material pretreatment: Select a high-conductivity titanium-aluminum alloy plate, eliminate the initial stress through vacuum annealing. After annealing, use a plasma cleaning device to remove the oxide layer and organic substances; S2. Composite forming: Use a mold to stamp and stretch the titanium-aluminum alloy plate to form an antenna element. Integrate a fiber Bragg grating sensor during the stamping process to monitor the material stress distribution in real time, and dynamically adjust the stamping parameters according to the stress distribution results; S3. Blanking processing: Use femtosecond laser cutting to punch slots for forming radiating arms on the surface of the antenna element; S4. Surface treatment: Use a magnetron sputtering device to spray a graphene coating on the inner and outer surfaces of the antenna element, and use a polishing device to polish the surface of the antenna element.

[0060] Compared with the related technologies, the production method of the antenna element, the antenna element, and the communication device provided by the present invention have the following beneficial effects:

[0061] The present invention provides a production method of an antenna element, an antenna element and a communication device. By selecting a high-conductivity titanium-aluminum alloy plate, the initial stress is eliminated through vacuum annealing. After annealing, a plasma cleaning device is used to remove the oxide layer and organic matter. Then, a mold is used to stamp and stretch the titanium-aluminum alloy plate to form an antenna element. During the stamping process, a fiber Bragg grating sensor is integrated to monitor the stress distribution of the material in real time, and the stamping parameters are dynamically adjusted according to the stress distribution results. A femtosecond laser is used to cut a slot for forming a vibrator arm on the surface of the antenna element. Finally, a graphene coating is sprayed on the inner and outer surfaces of the antenna element through a magnetron sputtering device, and a polishing device is used to polish the surface of the antenna element to obtain a finished antenna element. By precisely controlling the annealing and cooling processes and using the FBG sensor to monitor the stress distribution in real time, the production cycle of the antenna element is significantly shortened. This not only reduces the waiting time during the production process but also improves the overall efficiency of the production line. The application of the stress elimination technology greatly reduces problems such as deformation and cracking caused by stress concentration during the processing of the antenna element. This not only reduces the rejection rate, reduces the waste of raw materials and energy, and reduces the production cost. Through single-time compound stamping, dynamic stress regulation, material gradient treatment, and servo intelligent compensation, the problems of material fatigue and dimensional instability caused by multiple stamping are completely solved. While reducing the number of processes, the improved process realizes a comprehensive improvement in the life, accuracy, and production efficiency of the vibrator arm.

[0062] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A production method of an antenna oscillator, characterized in that, It includes the following steps: S1. Material pretreatment: Select high-conductivity titanium-aluminum alloy sheets, eliminate the initial stress through vacuum annealing. After annealing, use a plasma cleaning device to remove the oxide layer and organic substances; S2. Composite forming: Use a mold to stamp and stretch the titanium-aluminum alloy sheet to form an antenna element. Integrate a fiber Bragg grating sensor during the stamping process to monitor the stress distribution of the material in real time, and dynamically adjust the stamping parameters according to the stress distribution results; S3. Blanking processing: Use femtosecond laser cutting to punch a cutting groove for forming the element arms on the surface of the antenna element; S4. Surface treatment: Use a magnetron sputtering device to spray a graphene coating on the inner and outer surfaces of the antenna element, and use a polishing device to polish the surface of the antenna element.

2. The production method of the antenna oscillator according to claim 1, characterized in that, In S1, under an argon atmosphere, heat at 850 °C and hold for 3 h.

3. The production method of the antenna oscillator according to claim 1, characterized in that, In S1, after annealing is completed, the cooling rate is controlled ≤ 10 °C / min.

4. The production method of the antenna oscillator according to claim 1, characterized in that In S1, the cleaning uses a mixed gas of Ar + 2% - 5% O2, and the cleaning time is 5 min.

5. The production method of the antenna oscillator according to claim 1, characterized in that, In S2, an FBG fiber array is embedded in the stamping die with a spacing of 10 mm. A split die is used, and the cavity surface is coated with a diamond-like carbon coating.

6. The production method of the antenna element according to claim 1, characterized in that, In S3, an integrated infrared thermal imager is set up to detect the molten pool temperature in real time. During the cutting process, helium gas is introduced for auxiliary cooling.

7. The production method of the antenna oscillator according to claim 1, characterized in that, In S4, the thickness of the graphene coating is 100 nm, the pressure of the polishing head is 5 psi, the rotation speed is 60 rpm, and the time is 2 min.

8. An antenna element manufactured by the production method of the antenna element according to any one of claims 1-7, characterized in that, It includes an antenna element body (1) integrally formed by stamping a titanium-aluminum alloy sheet. Cutting grooves (2) for forming a plurality of element arms (4) are formed on the surface of the antenna element (1), and the plurality of element arms (4) are arranged in a uniformly spaced circular pattern along the surface of the antenna element body (1).

9. The antenna oscillator according to claim 7, characterized in that, A graphene coating (3) is coated on the surface of the antenna element body (1), and the graphene coating (3) covers the surface of the antenna element body (1).

10. A communication device, characterized in that, The communication device has the antenna element as described in any one of claims 8 and 9.

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