A high-power KA-band filter-isolating-coupling assembly

Abstract

The utility model relates to a satellite communication technical field especially relates to a kind of high-power KA waveband filter isolation coupling assembly, including metal cavity, isolator is arranged on metal cavity, the lower portion of isolator is provided with silicon carbide wave-absorbing material groove, the side of isolator is provided with filter, the upper portion of filter is provided with coupler, coupler is provided with SMP coaxial connector, the side of isolator is provided with waveguide window, waveguide window is provided with mica sheet, the both sides of metal cavity are all provided with circular hole, the inside of circular hole is provided with magnetic steel, the side of metal cavity is provided with heat conduction face.The utility model can effectively adapt to the high frequency characteristic of KA waveband, ensure the transmission and processing of high-frequency microwave signal not to be limited by frequency, can stably bear high-power signal in KA waveband, isolate signal noise and interference, ensure signal quality, and reduce unnecessary signal leakage by efficient filtering, improve the signal purity and communication quality of system.

Description

Technical Field

[0001] This utility model relates to the field of satellite communication technology, specifically a high-power KA-band filtering isolation coupling component. Background Technology

[0002] The KA band (26.5 GHz - 40 GHz) refers to a microwave spectrum with electromagnetic wave frequencies ranging from 26.5 GHz to 40 GHz. Due to its high frequency, the KA band offers unique advantages in many applications, such as satellite communications, radar systems, wireless communications, and millimeter-wave imaging. Especially in the communications field, the KA band, with its large bandwidth, can provide high-speed data transmission rates, thus attracting increasing attention and application.

[0003] However, the high-frequency characteristics of the KA band also present a series of technical challenges. First, the shorter wavelength of high frequencies leads to greater signal propagation loss, especially in atmospheric transmission, where signals are easily affected by rain attenuation, air absorption, and other factors, limiting their transmission distance and reliability. Therefore, to overcome these challenges, advanced antenna design and signal processing techniques are needed to improve the performance and anti-interference capabilities of KA band systems.

[0004] Furthermore, components in the KA band (such as power amplifiers, filters, and antennas) typically face limited power handling capacity due to their higher frequencies. Higher frequencies result in smaller device sizes, but also greater internal current density and heat generation, making them prone to overheating or nonlinear distortion, thus limiting their stability and reliability at high power levels. Therefore, the design of KA band equipment must not only consider frequency characteristics but also focus on optimizing the thermal management and power handling capacity of components.

[0005] Currently, while some technological advancements have been made to address the high-power issue in the KA band, such as the use of more advanced semiconductor materials (e.g., GaN, SiC) to improve the power handling capacity of components, KA band devices still exhibit lower power tolerance compared to low-frequency band devices. Further improving the power handling capacity of these components and reducing performance degradation caused by overheating or nonlinear effects remains an important direction for the development of KA band technology. No solutions have yet been proposed to address these related technical problems. Utility Model Content

[0006] To address the problems in related technologies, this invention proposes a high-power KA-band filtering isolation coupling component to overcome the aforementioned technical issues in existing technologies. The purpose of this invention is to effectively adapt to the high-frequency characteristics of the KA band, ensuring that the transmission and processing of high-frequency microwave signals are not limited by frequency, stably withstand high-power signals in the KA band, maintain stability in harsh working environments by adapting to high frequency and high microwave power, effectively isolate signal noise and interference, ensure signal quality, reduce unnecessary signal leakage through efficient filtering, improve the signal purity and communication quality of the system, and meet the application requirements of high precision and high requirements.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-power KA-band filter isolation coupling component, comprising a metal cavity, an isolator disposed on the metal cavity, a silicon carbide absorbing material groove disposed below the isolator, a filter disposed on one side of the isolator, a coupler disposed above the filter, an SMP coaxial connector disposed on the coupler, a waveguide window disposed on one side of the isolator, a mica sheet disposed on the waveguide window, circular holes being provided on both sides of the metal cavity, magnets being disposed inside the circular holes, and a heat-conducting surface being provided on one side of the metal cavity.

[0008] Preferably, the metal cavity includes an upper cavity and a lower cavity.

[0009] Preferably, a magnet cover is provided on one side of the magnet.

[0010] Preferably, a waveguide window pressure block is also provided on one side of the waveguide window.

[0011] Preferably, the upper cavity is provided with mounting holes.

[0012] Preferably, the metal cavity is made of metal material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model is a high-power KA band filter isolation coupling component. By setting a metal cavity and using a silver plating process, the silver plating layer can effectively reduce the loss generated by microwave signals during transmission. Due to the excellent conductivity of silver, the signal transmission efficiency can be ensured and the power attenuation caused by loss can be reduced, thereby improving the overall system performance and energy efficiency.

[0015] (2) This utility model is a high-power KA band filter isolation coupling component. By setting the coupler to adopt SMP coaxial connector, the volume of the component can be effectively reduced. Due to its compact structure design, the SMP coaxial connector can make the component smaller without affecting the performance, making it convenient for integration and application. Especially in space-constrained occasions, such as satellite communication systems, it can achieve more efficient design.

[0016] (3) This utility model is a high-power KA band filter isolation coupling component. By setting a waveguide window and using mica sheet as a dielectric spacer, the excellent electrical insulation properties and high withstand voltage of mica sheet can effectively improve the power carrying capacity of the component, so that the component can still operate stably under high power, reducing the risk of failure caused by electrical breakdown or dielectric breakdown, thereby enhancing the reliability and applicability of the system.

[0017] (4) This utility model is a high-power KA band filter isolation coupling component, which can effectively adapt to the high frequency characteristics of the KA band, ensure that the transmission and processing of high-frequency microwave signals are not limited by frequency, and can stably withstand high-power signals in the KA band. Under high-power operating conditions, the component can effectively process the powerful input and output signals. At the same time, by optimizing heat dissipation, dielectric materials and structural design, it prevents performance degradation or failure caused by overheating or overload, ensures long-term reliable operation of the equipment under high power, effectively isolates signal noise and interference, ensures signal quality, and reduces unnecessary signal leakage through efficient filtering, improves the signal purity and communication quality of the system, and meets the application requirements of high precision and high requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the lower cavity of this utility model;

[0020] Figure 3 This is a schematic diagram of the upper cavity of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the heat-conducting surface of this utility model. Attached image description:

[0023] 1. Metal cavity; 101. Upper cavity; 102. Lower cavity; 2. Isolator; 3. Silicon carbide absorbing material groove; 4. Filter; 5. Coupler; 6. SMP coaxial connector; 7. Waveguide window; 8. Mica sheet; 9. Magnet; 10. Thermally conductive surface; 11. Magnet cover; 12. Waveguide window clamp; 13. Mounting hole. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example

[0026] Please see Figure 1-4 This invention proposes a technical solution for a high-power KA-band filtering isolation coupling component: a high-power KA-band filtering isolation coupling component, including a metal cavity 1, specifically, the metal cavity 1 is silver-plated. The silver plating layer can effectively reduce the loss generated during microwave signal transmission. Due to the excellent conductivity of silver, it can ensure signal transmission efficiency and reduce power attenuation caused by loss, thereby improving the overall system performance and energy efficiency; an isolator 2 is provided on the metal cavity 1, specifically, the isolator 2 adopts existing technology. The isolator 2 effectively isolates the reverse signal between the signal source and the load, protecting the source-end equipment, improving system performance and reducing interference. It is an indispensable key component in high-frequency and high-power applications; a silicon carbide absorbing element is provided below the isolator 2. Material tank 3, specifically, contains silicon carbide absorbing material. Silicon carbide absorbing material has excellent absorption performance and superior high-temperature resistance, corrosion resistance, and high strength. A filter 4 is located on one side of isolator 2. Specifically, filter 4 is an electronic component or circuit mainly used to select or suppress signals within a certain frequency range. A coupler 5 is located above filter 4, and an SMP coaxial connector 6 is located on coupler 5. Specifically, the SMP coaxial connector 6 effectively reduces the size of the component. Due to its compact design, the SMP coaxial connector 6 allows for miniaturization of the component without affecting performance, facilitating integration and application, especially in space-constrained environments such as satellite communication systems, enabling more efficient design.

[0027] A waveguide window 7 is provided on one side of the isolator 2, and a mica sheet 8 is provided on the waveguide window 7. Specifically, the waveguide window 7 is mainly used to isolate external water, air, and dust, allowing the microwave to operate in a relatively clean and dry environment. The waveguide window 7 uses a mica sheet as a dielectric spacer. The excellent electrical insulation properties and high withstand voltage of the mica sheet can effectively improve the power carrying capacity of the component, enabling the component to operate stably under high power, reducing the risk of failure caused by electrical breakdown or dielectric breakdown, thereby enhancing the reliability and applicability of the system. Circular holes are opened on both sides of the metal cavity 1, and magnets 9 are installed inside the circular holes. Specifically, magnets 9 can improve isolation, improve filtering performance, enhance coupling efficiency, and help improve the ability to resist electromagnetic interference. Due to the efficient magnetic field effect of magnets 9, the design of the filtering isolation coupling component can be more flexible, reducing volume and weight while maintaining high performance, thereby adapting to the space and weight requirements of high-power equipment. A heat-conducting surface 10 is provided on one side of the metal cavity 1.

[0028] Please see Figure 1-4 As shown, the metal cavity 1 further includes an upper cavity 101 and a lower cavity 102.

[0029] In this embodiment, the upper cavity 101 and the lower cavity 102 can be designed as detachable structures.

[0030] Please see Figure 1 As shown, a magnet cover 11 is further provided on one side of the magnet 9.

[0031] In this embodiment, the magnet cover 11 can protect the magnet 9.

[0032] Please see Figure 1 As shown, a waveguide window pressure block 12 is further provided on one side of the waveguide window 7.

[0033] In this embodiment, the waveguide window clamping block 12 can install the waveguide window 7.

[0034] Please see Figure 1 As shown, the upper cavity 101 is further provided with a mounting hole 13.

[0035] In this embodiment, it is convenient to install the whole unit.

[0036] Furthermore, the metal cavity 1 is made of metal material.

[0037] In this embodiment, the metal cavity 1 is made using a silver plating process.

[0038] The working principle of this utility model:

[0039] The signal of the satellite communication receiving band is filtered out, and the frequency signal of the transmitting end is retained. The coupler 5 can be used to detect the transmitted microwave power. The waveguide window 7 is mainly used to isolate external water, air and dust, so that the microwave works in a relatively clean and dry environment. The isolator 2 is used to prevent the power reflected by the microwave antenna or load from entering the microwave transmitter, so as to realize the unidirectional transmission of microwave signal.

[0040] Simulation was used to model and simulate the four main components of the filter 4, coupler 5, waveguide window 7, and isolator 2 respectively, so that their return loss, insertion loss and other technical indicators meet the requirements. The four components were combined together for overall simulation calculation, so that their return loss, insertion loss and other technical indicators meet the requirements.

[0041] This invention effectively adapts to the high-frequency characteristics of the KA band, ensuring that the transmission and processing of high-frequency microwave signals are not limited by frequency. Due to the high frequency of the KA band, signal transmission is easily affected by loss and attenuation. The component, through optimized design and material selection, ensures good signal propagation at high frequencies, reduces signal attenuation, and improves system transmission efficiency. The component's design considers high-power carrying requirements, stably handling high-power signals in the KA band. Under high-power operating conditions, the component effectively processes powerful input and output signals. Simultaneously, through optimized heat dissipation, dielectric materials, and structural design, it prevents performance degradation or failure due to overheating or overload, ensuring long-term reliable operation of the equipment under high power. By adapting to high frequency and high microwave power, the component maintains stability in harsh operating environments, maintaining efficient operation in communication systems, radar systems, and other high-frequency, high-power applications, reducing system failure rates, and improving the overall system reliability and lifespan. Under high-frequency and high-power conditions, filtering and isolation become particularly important. This component effectively isolates signal noise and interference, ensuring signal quality, and reduces unnecessary signal leakage through efficient filtering, improving system signal purity and communication quality to meet the high-precision, high-requirement application requirements.

[0042] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-power KA-band filter isolation coupling component, characterized in that, The device includes a metal cavity (1), an isolator (2) on the metal cavity (1), a silicon carbide absorbing material groove (3) below the isolator (2), a filter (4) on one side of the isolator (2), a coupler (5) above the filter (4), an SMP coaxial connector (6) on the coupler (5), a waveguide window (7) on one side of the isolator (2), a mica sheet (8) on the waveguide window (7), circular holes on both sides of the metal cavity (1), magnets (9) inside the circular holes, and a heat-conducting surface (10) on one side of the metal cavity (1).

2. The high-power KA-band filter isolation coupling component according to claim 1, characterized in that: The metal cavity (1) includes an upper cavity (101) and a lower cavity (102).

3. The high-power KA-band filter isolation coupling component according to claim 1, characterized in that: A magnet cover (11) is provided on one side of the magnet (9).

4. A high-power KA-band filter isolation coupling component according to claim 1, characterized in that: A waveguide window pressure block (12) is also provided on one side of the waveguide window (7).

5. A high-power KA-band filter isolation coupling component according to claim 2, characterized in that: The upper cavity (101) is provided with a mounting hole (13).

6. A high-power KA-band filter isolation coupling component according to claim 1, characterized in that: The metal cavity (1) is made of metal material.

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