Microwave waveguide synthesis unit

Abstract

The utility model provides a microwave waveguide synthesis unit which is characterized in that the microwave waveguide synthesis unit comprises a synthesis waveguide and a compression waveguide, the synthesis waveguide is used for outputting synthesized microwaves and is provided with an end face, and the central axis, perpendicular to the end face, of the microwave waveguide synthesis unit is marked as a first axis; the plane coinciding with the first axis is marked as a first plane. The two compression waveguides are located on the two sides of the first plane respectively, an input port is formed in each compression waveguide, one end of each compression waveguide is communicated with the outside through the corresponding input port, the other end of each compression waveguide is communicated with the synthesis waveguide, and a first inclined face is arranged on the outer side of each compression waveguide. According to the microwave waveguide synthesis unit provided by the invention, the first compression waveguide and the second compression waveguide are designed, so that the size of the microwave waveguide synthesis unit is smaller than that of a traditional microwave waveguide synthesis unit, and the microwave waveguide synthesis unit is more convenient to install and integrate.

Description

Technical Field

[0001] The present application relates to the field of microwave technology, and in particular to a microwave waveguide synthesis unit. Background Art

[0002] The integration of traditional microwave waveguide synthesis units is limited due to their large size, so there is a technical problem in the prior art. This bulky traditional microwave waveguide synthesis unit is difficult to meet the requirements of modern microwave communication systems for compactness and high performance, especially when microwave equipment needs to be integrated into smaller and lighter equipment. This problem is particularly prominent. Traditional microwave waveguide synthesis units usually require a large amount of space, which not only increases the size of the equipment, but also limits its use in some specific application scenarios, such as in the aerospace field or mobile communication equipment. Therefore, there is an urgent need in the prior art for a smaller and easier to integrate microwave waveguide synthesis unit to solve the problems of bulky size and poor integration in existing microwave waveguide synthesis units. Utility Model Content

[0003] In view of this, it is necessary to provide a microwave waveguide synthesis unit to solve the above problems.

[0004] An embodiment of the present application provides a microwave waveguide synthesis unit, comprising:

[0005] A synthetic waveguide, used for outputting synthesized microwaves, wherein the synthetic waveguide has an end face, a central axis of the microwave waveguide synthesis unit perpendicular to the end face is recorded as a first axis, and a plane coincident with the first axis is recorded as a first plane;

[0006] Compression waveguides, two of which are respectively located on both sides of the first plane, an input port is provided on the compression waveguide, one end of the compression waveguide is connected to the outside through the input port, and the other end is connected to the synthetic waveguide, and the outer side of the compression waveguide has a first inclined surface;

[0007] Wherein, the angle a between the first inclined surface and the end surface satisfies the relationship: 0°<a≤15°;

[0008] An included angle b between the first inclined surface and the first plane satisfies the relationship 75°≤b<90°.

[0009] In at least one embodiment of the present application, the compression waveguide has a first section and a second section, one end of the first section is connected to the input port, and the other end is connected to the second section, one end of the second section is connected to the first section, and the other end of the second section is connected to the synthetic waveguide.

[0010] In at least one embodiment of the present application, the compression waveguide has a second inclined surface located between the first section and the second section on the inner side, one end of the second inclined surface intersects with the first section, and the other end of the second inclined surface intersects with the second section;

[0011] The angle between the second inclined surface and the end surface is 15°;

[0012] The included angle between the second inclined surface and the first plane is 75°.

[0013] In at least one embodiment of the present application, a waveguide portion is provided on the compression waveguide, and the waveguide portion guides the microwaves to be discharged from the output port.

[0014] In at least one embodiment of the present application, the waveguide portion has a third inclined surface and a fourth inclined surface mirror-disposed on both sides of the first plane, and the third inclined surface and the fourth inclined surface are disposed opposite to the output port;

[0015] The angle c between the third inclined surface and the first plane satisfies the relationship: 0°<c≤45°;

[0016] The angle d between the third inclined surface and the end surface satisfies the relationship: 45°≤d<90°;

[0017] The angle e between the fourth inclined surface and the first plane satisfies the relationship: 0°<e≤45°;

[0018] The included angle f between the fourth inclined surface and the end surface satisfies the relationship: 45°≤f<90°.

[0019] In at least one embodiment of the present application, the first inclined surface is located between the first section and the second section, one end of the first inclined surface is connected to the first section, the other end of the first inclined surface is connected to the second section, and the distance between the connection between the first inclined surface and the first section and the first plane is g;

[0020] The distance between the connection point between the first inclined surface and the second section and the first plane is h;

[0021] g and h satisfy the relationship g>h.

[0022] In at least one embodiment of the present application, two ends of the waveguide portion are respectively bolted to the two input ports, and the two input ports are respectively bolted to the two compression waveguides.

[0023] In at least one embodiment of the present application, the synthetic waveguide is disposed on a side of the compression waveguide away from the input port, and the synthetic waveguide is bolted to the compression waveguide.

[0024] In at least one embodiment of the present application, the two compression waveguides are integrally formed, and the second sections of the two compression waveguides are interconnected.

[0025] In at least one embodiment of the present application, a plurality of mounting holes are opened on the synthetic waveguide, the opening direction of the mounting holes is parallel to the end face, and the plurality of mounting holes are arranged around the synthetic waveguide.

[0026] The microwave waveguide synthesis unit provided above is designed with a first compression waveguide and a second compression waveguide, so that the volume of the microwave waveguide synthesis unit of the present design is smaller than that of a traditional microwave waveguide synthesis unit, and is easier to install and integrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural stereogram of a microwave waveguide synthesis unit;

[0028] Figure 2 It is a structural stereogram of a microwave waveguide synthesis unit;

[0029] Figure 3 is a top view of a microwave waveguide synthesis unit;

[0030] Figure 4 for Figure 2 Section view at AA;

[0031] Figure 5 This is a structural breakdown diagram of the microwave waveguide synthesis unit.

[0032] Main component symbols

[0033] 100. Microwave waveguide synthesis unit; 1. Synthesized waveguide; 11. End face; 12. Output port; 13. Mounting hole; 14. First slope; 2. Compression waveguide; 21. Input port; 22. First section; 23. Second section; 24. Second slope; 3. Waveguide portion; 31. Third slope; 32. Fourth slope; i. First axis. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0035] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0036] An embodiment of the present application provides a microwave waveguide synthesis unit, comprising:

[0037] A synthetic waveguide, used for outputting synthesized microwaves, wherein the synthetic waveguide has an end face, a central axis of the microwave waveguide synthesis unit perpendicular to the end face is recorded as a first axis, and a plane coincident with the first axis is recorded as a first plane;

[0038] Compression waveguides, two of which are respectively located on both sides of the first plane, an input port is provided on the compression waveguide, one end of the compression waveguide is connected to the outside through the input port, and the other end is connected to the synthetic waveguide, and the outer side of the compression waveguide has a first inclined surface;

[0039] Wherein, the angle a between the first inclined surface and the end surface satisfies the relationship: 0°<a≤15°;

[0040] The angle b between the first inclined surface and the first plane satisfies the relationship 75°≤b<90°. The microwave waveguide synthesis unit provided above is designed with a first compression waveguide and a second compression waveguide, so that the volume of the microwave waveguide synthesis unit of the present design is smaller than that of the traditional microwave waveguide synthesis unit, and is easier to install and integrate.

[0041] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0042] See also Figure 1-Figure 5 , an embodiment of the present application provides a microwave waveguide synthesis unit 100, characterized in that it includes a synthetic waveguide 1 and a compression waveguide 2, the synthetic waveguide 1 is used to output synthesized microwaves, the synthetic waveguide 1 has an end face 11, the central axis of the microwave waveguide synthesis unit 100 perpendicular to the end face 11 is recorded as the first axis i, and the plane coinciding with the first axis i is recorded as the first plane. The two compression waveguides 2 are respectively located on both sides of the first plane, and an input port 21 is provided on the compression waveguide 2. One end of the compression waveguide 2 is connected to the outside through the input port 21, and the other end is connected to the synthetic waveguide 1. The outer side of the compression waveguide 2 has a first inclined surface 14. Among them, the angle a between the first inclined surface 14 and the end face 11 satisfies the relationship: 0°<a≤15°. The angle b between the first inclined surface 14 and the first plane satisfies the relationship 75°≤b<90°.

[0043] Specifically, the synthetic waveguide 1 is used to output a synthesized microwave signal, while the compression waveguide 2 is used to transmit the external microwave signal to the synthetic waveguide 1. Through this configuration, the synthesis and processing of the input signal can be achieved to meet the specific microwave signal output requirements. The first inclined plane 14 is arranged on the outside of the compression waveguide 2 to optimize the appearance of the entire waveguide. By setting the inclined plane, the external projection of the waveguide can be reduced, making the device more compact and the outline smoother, which is beneficial to the overall appearance and design optimization. The outer inclined plane design makes the waveguide easier to install and maintain. The external protrusions are reduced, which is beneficial to the adjustment and fixation during the installation process, and also facilitates daily maintenance and cleaning.

[0044] Furthermore, the angle a defines the inclination of the first inclined surface 14 relative to the outside of the compression waveguide 2. By controlling this angle, we can adjust the slope of the inclined surface so that it forms a smooth transition outside the waveguide. A smaller angle a means that the inclined surface is relatively gentle, while a larger angle a makes the inclined surface steeper. A suitable angle a can ensure the optimization of the waveguide shape, reduce unnecessary interference that may be caused by the protruding part, and also facilitate the good adaptation of the waveguide to the surrounding environment. Angle b defines the relationship between the first inclined surface 14 and the end face 11 (first plane) of the waveguide. A larger angle b means that the distance between the inclined surface and the waveguide end face 11 is larger, while a smaller angle b means that the two are closer. By controlling angle b and angle a, we can ensure that the external shape of the waveguide can adapt to specific application scenarios to adapt to various installation scenarios.

[0045] In a specific example, the compression waveguide 2 has a first section 22 and a second section 23, one end of the first section 22 is connected to the input port 21, and the other end is connected to the second section 23, one end of the second section 23 is connected to the first section 22, and the other end of the second section 23 is connected to the synthetic waveguide 1.

[0046] Specifically, the compression waveguide 2 is divided into two parts, namely the first section 22 and the second section 23. This segmented design may be to achieve more flexible microwave signal processing, because each section can be adjusted separately to meet different needs. The segmented design allows the compression waveguide 2 to process microwave signals more flexibly. Each section can be adjusted and optimized as needed to meet different signal processing requirements. This connection method ensures smooth transmission of signals. The signal enters the first section 22 from the input port 21, and after being processed by the first section 22 and the second section 23, it finally enters the synthesis waveguide 1, which can maximize the stable transmission and synthesis effect of the signal.

[0047] Furthermore, the design of dividing the compression waveguide 2 into the first section 22 and the second section 23 is to improve the flexibility and adjustability of the microwave waveguide synthesis unit 100, and to optimize the transmission and processing of signals. The segmented design allows each section to be adjusted and optimized independently to meet different signal processing requirements. For example, the parameters of the first section 22 and the second section 23 can be adjusted according to factors such as the frequency, power and transmission distance of the signal to achieve the best signal transmission effect. The first section 22 and the second section 23 can have different characteristics and parameter settings, such as different lengths, cross-sectional areas, materials or waveguide structures. Such a design can make the compression waveguide 2 suitable for different application scenarios and signal processing requirements.

[0048] In a specific example, the compression waveguide 2 has a second inclined surface 24 located between the first section 22 and the second section 23 on the inner side, one end of the second inclined surface 24 intersects with the first section 22, and the other end of the second inclined surface 24 intersects with the second section 23;

[0049] The included angle between the second inclined surface 24 and the end surface 11 is 15°;

[0050] The included angle between the second inclined surface 24 and the first plane is 75°.

[0051] Specifically, the second inclined plane 24 is located inside the compression waveguide 2, that is, located in the internal space of the compression waveguide 2. It is placed between the first section 22 and the second section 23, so that it can affect the transmission path and transmission characteristics of the signal inside the waveguide. The design of the second inclined plane 24 can change the transmission path of the microwave inside the waveguide. Through the inclination angle and position of the inclined plane, the transmission direction and path of the microwave signal inside the waveguide can be adjusted, thereby optimizing the efficiency and stability of signal transmission. By reasonably designing the second inclined plane 24, the smooth transmission of the microwave signal inside the waveguide can be achieved, the loss and interference of the signal can be reduced, and the performance of the system can be improved.

[0052] Furthermore, the design of the angle of 15° between the second bevel 24 and the end face 11 is to optimize the signal transmission effect inside the microwave waveguide and ensure the stability and reliability of the signal. When the microwave signal propagates to the end face 11 of the waveguide, there is the possibility of reflection and interference. Setting the angle between the second bevel 24 and the end face 11 to 15° can reduce the reflection of the signal, so that the signal will not be directly reflected back into the waveguide, thereby reducing the impact of reflection on signal transmission. The angle of 15° can prevent the direction of the reflected signal from directly coinciding with the transmission direction of the original signal, reducing the degree of interference of the reflected signal on the original signal. The design of the first bevel 14 cooperates with the second bevel 24, and the first bevel 14 and the second bevel 24 cooperate with each other in the microwave waveguide and work together. The second bevel 24 is located on the inner side of the compression waveguide 2, which helps to optimize the microwave transmission path and characteristics inside the waveguide.

[0053] Furthermore, the first inclined plane 14 is located outside the waveguide, which is used to change the external shape of the waveguide and reduce the volume of the waveguide. Due to the presence of the second inclined plane 24, the transmission path inside the waveguide can be adjusted, so that the microwave signal can be transmitted more smoothly inside the waveguide. Such a design can make the overall size of the waveguide more compact and reduce the volume of the waveguide. The setting of the first inclined plane 14 can make full use of the external space of the waveguide, further reduce the size of the waveguide, and make it more suitable for various application scenarios with limited space. Therefore, the first inclined plane 14 and the second inclined plane 24 cooperate with each other to jointly optimize the size of the waveguide. The second inclined plane 24 optimizes the transmission efficiency inside the waveguide, while the first inclined plane 14 further reduces the volume of the waveguide by changing the shape of the waveguide. Such a design enables the microwave waveguide to have a more compact and flexible external size while maintaining efficient transmission, thereby enhancing its applicability in practical applications.

[0054] In a specific example, a waveguide portion 3 is provided on the compression waveguide 2 , and the waveguide portion 3 guides the microwave to be discharged from the output port 12 .

[0055] Specifically, the waveguide portion 3 is located above or inside the compression waveguide 2, usually near the output port 12 of the waveguide. The purpose of this design is to provide a guiding structure when the microwave signal is transmitted from the waveguide to the output port 12, so as to ensure that the signal can flow out of the waveguide smoothly. The design of the waveguide portion 3 takes into account the transmission path of the microwave signal. It is usually a structure of a special shape that can guide the microwave signal from the inside of the waveguide to the output port 12. This is usually achieved by setting a protruding structure on the propagation path of the microwave, so that the microwave is reflected after contacting the structure and changes direction to achieve the guiding effect. By carefully designing the shape of the waveguide portion 3, the microwave can be introduced from the compression waveguide 2 into the synthetic waveguide 1.

[0056] In a specific example, the waveguide portion 3 has a third inclined surface 31 and a fourth inclined surface 32 which are mirror-imaged on both sides of the first plane, and the third inclined surface 31 and the fourth inclined surface 32 are arranged opposite to the output port 12;

[0057] The angle c between the third inclined surface 31 and the first plane satisfies the relationship: 0°<c≤45°;

[0058] The angle d between the third inclined surface 31 and the end surface 11 satisfies the relationship: 45°≤d<90°;

[0059] The angle e between the fourth inclined surface 32 and the first plane satisfies the relationship: 0°<e≤45°;

[0060] The included angle f between the fourth inclined surface 32 and the end surface 11 satisfies the relationship: 45°≤f<90°.

[0061] Specifically, the third inclined plane 31 and the fourth inclined plane 32 are inclined planes mirrored on both sides of the waveguide 3. This arrangement helps to balance the structure of the waveguide 3 and enables the microwave signal in the waveguide to be evenly transmitted to the output port 12. The two inclined planes are symmetrical, which can maintain the symmetry of the waveguide structure and reduce the asymmetric transmission of the microwave signal, thereby improving the transmission efficiency and stability of the signal. Angles c and e are the angles between the third inclined plane 31 and the fourth inclined plane 32 and the first plane (waveguide bottom surface), respectively. The setting ranges of these two angles are 0°<c≤45° and 0°<e≤45°, respectively. The setting of these two angles can affect the shape and guiding effect of the waveguide 3. A smaller angle can make the waveguide 3 more compact and help guide the microwave signal to be smoothly transmitted from the waveguide to the output port 12. Angles d and f are the angles between the third inclined plane 31 and the fourth inclined plane 32 and the end face 11 (waveguide side surface), respectively. The setting ranges of the two angles are 45°≤d<90° and 45°≤f<90° respectively. The setting of the two angles affects the connection mode between the waveguide portion 3 and the waveguide and the external shape of the waveguide portion 3. A larger angle helps to maintain the connection stability of the waveguide, and is also beneficial to the transmission efficiency and stability of the microwave signal.

[0062] Further, limiting the angle can help optimize the structure of the waveguide 3, ensuring that it has a suitable shape and size to maximize the transmission efficiency and stability of the microwave signal. By limiting the angle, it can be ensured that the angle between the inclined surface and the plane is within a suitable range, thereby ensuring that the design of the waveguide 3 meets the requirements of the waveguide system. Limiting the angle ensures that the design of the waveguide component meets the optimal parameter range and can reduce energy loss. In the waveguide system, if the angle is properly designed, the reflection and scattering of the signal can be reduced, thereby reducing energy loss. This can ensure that the transmission efficiency of the microwave signal in the waveguide is higher and reduce the waste of energy. By limiting the angle to design the shape of the waveguide 3, the transmission of the microwave signal in the waveguide can be made more uniform. A more suitable angle design can enable the microwave signal to be transmitted in a smoother manner along the surface of the waveguide 3, reduce the fluctuation and diffusion of the signal, thereby improving the uniformity and consistency of the transmission.

[0063] In a specific example, the first slope 14 is located between the first section 22 and the second section 23, one end of the first slope 14 is connected to the first section 22, and the other end of the first slope 14 is connected to the second section 23, the distance between the connection between the first slope 14 and the first section 22 and the first plane is g, and the distance h between the connection between the first slope 14 and the second section 23 and the first plane satisfies the relationship g>h.

[0064] Specifically, meeting the requirement that g is greater than h helps optimize the transmission of microwave signals in the waveguide. By keeping the connection between the first inclined surface 14 and the first section 22 at a higher position than the connection between the first inclined surface 14 and the second section 23, the smooth transmission of microwave signals in the waveguide can be ensured, and signal reflection and loss can be reduced, thereby improving transmission efficiency.

[0065] In a specific example, two ends of the waveguide portion 3 are respectively connected to the two input ports 21 by bolts, and the two input ports 21 are respectively connected to the two compression waveguides 2 by bolts.

[0066] Specifically, the waveguide 3 is a component for guiding the microwave signal to be transmitted from the compression waveguide 2 to an external system or device. Its two ends are bolted to the two input ports 21 respectively. This connection method ensures a tight connection between the waveguide 3 and the input port 21, prevents signal leakage or breakage, and ensures smooth transmission of the signal. The input port 21 is a component for introducing an external microwave signal into the compression waveguide 2. The two input ports 21 are bolted to the two compression waveguides 2 respectively, ensuring a firm connection between the input port 21 and the compression waveguide 2. This connection method helps to maintain stable transmission of the signal and avoids signal leakage or interference. Bolt connection is a common mechanical connection method, in which different components are tightly fixed together by bolts. In this case, the bolt connection is used to ensure a firm connection between the waveguide 3, the input port 21 and the compression waveguide 2 to prevent it from loosening or falling off during operation, thereby ensuring the reliability and stability of the system.

[0067] In a specific example, the synthetic waveguide 1 is disposed on a side of the compression waveguide 2 away from the input port 21 , and the synthetic waveguide 1 is bolted to the compression waveguide 2 .

[0068] Specifically, the synthetic waveguide 1 is arranged on a side of the compression waveguide 2 away from the input port 21. Such a position design can ensure that there is enough distance between the synthetic waveguide 1 and the input port 21, preventing the signal of the input port 21 from directly affecting the microwave signal in the synthetic waveguide 1. At the same time, this also helps to improve the stability and reliability of the system. The synthetic waveguide 1 is connected to the compression waveguide 2 by bolts. This connection method ensures a firm connection between the synthetic waveguide 1 and the compression waveguide 2, preventing them from loosening or falling off during operation. Through the bolt connection, it can be ensured that there is enough contact area between the two waveguide components, thereby ensuring the smooth transmission of the signal and the stability of the system. The synthetic waveguide 1 is arranged on a side away from the input port 21, which can effectively isolate the influence of the signal of the input port 21 on the synthetic waveguide 1. This layout design helps to reduce signal interference and cross-interference, improve the anti-interference ability and stability of the system, and ensure the transmission quality of the microwave signal in the synthetic waveguide 1.

[0069] In a specific example, the two compression waveguides 2 are integrally formed, and the second sections 23 of the two compression waveguides 2 are interconnected.

[0070] Specifically, the two compression waveguides 2 are integrally formed, which means that they are manufactured as an integral structure. Typically, these waveguides may be a single structure formed by metal processing or other process methods, rather than two separate components. The integrally formed design simplifies the manufacturing and installation process of the compression waveguide 2, reduces possible failure points at the connection, and improves the reliability of the system. The interconnected design of the second section 23 ensures that the microwave signal can propagate freely throughout the compression waveguide 2 structure, maintaining the continuity and stability of the signal, thereby improving the transmission efficiency and performance of the system.

[0071] In a specific example, a plurality of mounting holes 13 are opened on the composite waveguide 1 , and the opening direction of the mounting holes 13 is parallel to the end surface 11 . The plurality of mounting holes 13 are arranged around the composite waveguide 1 .

[0072] Specifically, the synthetic waveguide 1 is provided with a plurality of mounting holes 13, which are used to install, fix or connect other devices or components. These mounting holes 13 can be connected with bolts, nuts or other fixings to ensure that the device is safely and firmly installed on the synthetic waveguide 1. The mounting holes 13 are arranged around the synthetic waveguide 1 and distributed around the synthetic waveguide 1. Such a design ensures that the device or component can be fixed to the synthetic waveguide 1 at multiple positions, thereby improving the flexibility and customizability of the synthetic waveguide 1. By providing a plurality of mounting holes 13 around the synthetic waveguide 1, the needs of different application scenarios can be met, allowing the user to select a suitable position for installation according to specific installation requirements.

[0073] Furthermore, making the opening direction of the mounting hole 13 parallel to the end face 11 can make the processing process simpler and more accurate. The processing personnel can more easily position the drill or cutting tool perpendicular to the end face 11, thereby ensuring the accuracy and consistency of the hole. When the mounting hole 13 is parallel to the end face 11 of the composite waveguide 1, when the mounting part is fixed to the composite waveguide 1 by a connection method such as bolts, more uniform support and pressure distribution can be provided in multiple directions. This can ensure that the connection between the mounting part and the composite waveguide 1 is tighter and more stable, reducing the possibility of loosening and shaking.

[0074] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A microwave waveguide synthesis unit, characterized in that: include: A synthetic waveguide, used for outputting synthesized microwaves, the synthetic waveguide having an end face, a central axis of the microwave waveguide synthesis unit perpendicular to the end face is recorded as a first axis, and a plane coincident with the first axis is recorded as a first plane; Compression waveguides, two of which are respectively located on both sides of the first plane, an input port is provided on the compression waveguide, one end of the compression waveguide is connected to the outside through the input port, and the other end is connected to the synthetic waveguide, and the outer side of the compression waveguide has a first inclined surface; Wherein, the angle a between the first inclined surface and the end surface satisfies the relationship: 0°<a≤15°; An included angle b between the first inclined surface and the first plane satisfies the relationship 75°≤b<90°.

2. The microwave waveguide synthesis unit according to claim 1, characterized in that: The compression waveguide has a first section and a second section, one end of the first section is connected to the input port, and the other end is connected to the second section, one end of the second section is connected to the first section, and the other end of the second section is connected to the synthetic waveguide.

3. The microwave waveguide synthesis unit according to claim 2, characterized in that: The compression waveguide has a second inclined surface located between the first section and the second section on the inner side, wherein one end of the second inclined surface intersects with the first section, and the other end of the second inclined surface intersects with the second section; The angle between the second inclined surface and the end surface is 15°; The included angle between the second inclined surface and the first plane is 75°.

4. The microwave waveguide synthesis unit according to claim 1, characterized in that: The compression waveguide has a waveguide portion, which guides the microwave to be discharged from the output port.

5. The microwave waveguide synthesis unit according to claim 4, characterized in that: The waveguide portion has a third inclined surface and a fourth inclined surface mirror-set on both sides of the first plane, and the third inclined surface and the fourth inclined surface are arranged opposite to the output port; The angle c between the third inclined surface and the first plane satisfies the relationship: 0°<c≤45°; The angle d between the third inclined surface and the end surface satisfies the relationship: 45°≤d<90°; The angle e between the fourth inclined surface and the first plane satisfies the relationship: 0°<e≤45°; The included angle f between the fourth inclined surface and the end surface satisfies the relationship: 45°≤f<90°.

6. The microwave waveguide synthesis unit according to claim 2, characterized in that: The first inclined surface is located between the first section and the second section, one end of the first inclined surface is connected to the first section, the other end of the first inclined surface is connected to the second section, and the distance between the connection between the first inclined surface and the first section and the first plane is g; The distance between the connection point between the first inclined surface and the second section and the first plane is h; g and h satisfy the relationship g>h.

7. The microwave waveguide synthesis unit according to claim 4, characterized in that: Two ends of the waveguide portion are respectively connected to the two input ports with bolts, and the two input ports are respectively connected to the two compression waveguides with bolts.

8. The microwave waveguide synthesis unit according to claim 3, characterized in that: The synthetic waveguide is arranged on a side of the compression waveguide away from the input port, and the synthetic waveguide is bolted to the compression waveguide.

9. The microwave waveguide synthesis unit according to claim 2, characterized in that: The two compression waveguides are integrally formed, and the second sections of the two compression waveguides are interconnected.

10. The microwave waveguide synthesis unit according to claim 1, characterized in that: The composite waveguide is provided with a plurality of mounting holes, the opening direction of the mounting holes is parallel to the end surface, and the plurality of mounting holes are arranged around the composite waveguide.

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