A radio frequency device

Abstract

An embodiment of the present application discloses a radio frequency device, comprising: a cover plate, a main body, a first low-pass structure, and a second low-pass structure; the first low-pass structure is arranged on the main body, and the space occupied by it is cylindrical; the second low-pass structure is arranged on the main body, and the space occupied by it is cylindrical, the maximum distance between the corresponding positions of the cover plate and the main body is greater than the larger value of the diameters of the two cylindrical shapes; the projections of the first low-pass structure and the second low-pass structure on the bottom surface parallel to the main body have overlapping parts.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular to a radio frequency device. Background Art

[0002] In electronics theory, when electric current flows through a conductor, a magnetic field is generated around it. When an alternating current flows through a conductor, an alternating electromagnetic field is generated around it, known as electromagnetic waves. Electromagnetic waves can propagate through the air and reflect off the ionosphere at the outer edge of the atmosphere, enabling long-distance transmission. High-frequency electromagnetic waves with long-distance transmission capabilities are called radio frequency (RF). RF technology is widely used in wireless communications. Equipment that generates, uses, and processes RF is collectively referred to as RF devices.

[0003] Low-pass filtering is a method of filtering radio frequency signals. It allows low-frequency signals to pass through, while blocking or attenuating high-frequency signals exceeding a set threshold. However, the degree of blocking or attenuation varies depending on the frequency and the filtering process (or purpose). Low-pass filtering is achieved through a low-pass structure.

[0004] Low-pass structures are usually used in RF devices. The space occupied by the low-pass structure in the RF device is generally cylindrical in shape and the axial direction is parallel to the upper and lower surfaces of the RF device's casing. When there are multiple low-pass structures in the RF device, the low-pass structures are on the same horizontal plane, resulting in a waste of space. Summary of the Invention

[0005] A first aspect of an embodiment of the present application provides a radio frequency device, comprising: a cover, a body, a first low-pass structure and a second low-pass structure;

[0006] The first low-pass structure is arranged on the main body, and the space occupied by it is cylindrical;

[0007] The second low-pass structure is provided on the body and occupies a cylindrical space, and the maximum distance between the corresponding positions of the cover plate and the body is greater than the larger value of the diameters of the two cylindrical shapes;

[0008] There is an overlapping portion between the projections of the first low-pass structure and the second low-pass structure on the bottom surface parallel to the body.

[0009] Based on the first aspect of the embodiment of the present application, optionally, the radio frequency device is a filter.

[0010] Based on the first aspect of the embodiment of the present application, optionally, the first low-pass structure is connected to other components through a connecting component, and the connecting component includes a tap and a connecting piece.

[0011] Based on the first aspect of the embodiment of the present application, optionally, the second low-pass structure is connected to other components through a connecting component, and the connecting component includes a tap and a connecting piece.

[0012] Based on the first aspect of the embodiment of the present application, optionally, an isolation sheet is provided between the first low-pass structure and the second low-pass structure.

[0013] Based on the first aspect of the embodiment of the present application, optionally, the first low-pass structure and the second low-pass structure are low-pass structures of the same type.

[0014] Based on the first aspect of the embodiment of the present application, optionally, if the projection areas of the first low-pass structure and the second low-pass structure on the bottom surface parallel to the body are equal, the area of ​​the overlapping portion is equal to the projection area of ​​the single cylindrical shape on the bottom surface of the body.

[0015] If the projection areas of the first low-pass structure and the second low-pass structure on the bottom surface parallel to the body are unequal, the area of ​​the overlapping portion is equal to the smaller value of the projection areas of the two cylindrical shapes on the bottom surface of the body.

[0016] Based on the first aspect of the embodiment of the present application, optionally, the first low-pass structure and the second low-pass structure are arranged in a groove of the body.

[0017] Based on the first aspect of the embodiment of the present application, optionally, the central axis of the first cylinder is parallel to the central axis of the second cylinder.

[0018] Based on the first aspect of the embodiment of the present application, optionally, a low-pass cover plate covering the first low-pass structure or the second low-pass structure is provided on the bottom surface of the main body.

[0019] From the above technical solution, it can be seen that the embodiment of the present application has the following advantages: the projections of multiple low-pass structures on a plane parallel to the bottom surface of the body overlap, thereby improving the space utilization rate within the radio frequency device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a current radio frequency device design embodiment corresponding to this application;

[0021] Figure 2 A schematic structural diagram of an embodiment of a radio frequency device of the present application;

[0022] Figure 3 This is another structural diagram of the radio frequency device embodiment of the present application. DETAILED DESCRIPTION

[0023] In electronics theory, when electric current flows through a conductor, a magnetic field is generated around it. When an alternating current flows through a conductor, an alternating electromagnetic field is generated around it, known as electromagnetic waves. Electromagnetic waves can propagate through the air and reflect off the ionosphere at the outer edge of the atmosphere, enabling long-distance transmission. High-frequency electromagnetic waves with long-distance transmission capabilities are called radio frequency (RF). RF technology is widely used in wireless communications. Equipment that generates, uses, and processes RF is collectively referred to as RF devices.

[0024] Low-pass filtering is a method of filtering radio frequency signals. It allows low-frequency signals to pass through, while blocking or attenuating high-frequency signals exceeding a set threshold. However, the degree of blocking or attenuation varies depending on the frequency and the filtering process (or purpose). Low-pass filtering is achieved through a low-pass structure.

[0025] Low-pass structures are usually used in radio frequency devices. The space occupied by low-pass structures arranged in different ways is also different. You can refer to Figure 1 When the cavity included in the device body is vertically facing upward, it generally includes a low-pass structure 101 and a low-pass structure 102. The space occupied by the low-pass structure 101 and the low-pass structure 102 is cylindrical, and the central axis of the cylindrical space occupied by the low-pass structure is parallel to the lower surface 103 of the cavity. The cylindrical space occupied by the low-pass structure is placed horizontally, and there are no other structures or components between the cylinder and the bottom surface of the cavity or the cover plane. However, the gap between the bottom surface of the cavity and the cover plane of radio frequency equipment is large, so there is some unusable space, resulting in a waste of space, which may cause the weight of the equipment to increase, the cost to increase, and other problems. Therefore, it is very important to try to choose a low-pass structure layout method that reduces space waste.

[0026] Please refer to Figure 2 The present application provides a radio frequency device, including a first low-pass structure 201, a second low-pass structure 202, a body 203 and a cover. For ease of observation, the cover is not shown.

[0027] The radio frequency device may be an amplifier, a filter, a frequency converter, or the like. This solution uses a filter as an example for illustration.

[0028] The main body of the filter consists of a baseplate and various components mounted on it, such as the resonator. A cover plate encloses the main body. The low-pass structure provides low-pass filtering, attenuating or eliminating high-frequency RF signals exceeding a set threshold. For filters with only one filter path, a single low-pass structure is sufficient. However, when multiple filter paths are present, multiple low-pass structures are present within the filter.

[0029] The first low-pass structure is arranged on the main body, and the space occupied by the first low-pass structure is in a cylindrical shape.

[0030] The first low-pass structure is located within the space encompassed by the main body. The specific internal structure of the first low-pass structure is not limited. The space occupied by the low-pass structure within the space encompassed by the main body is cylindrical. It is worth noting that the cylindrical shape of the low-pass structure within the space encompassed by the main body does not limit the low-pass structure to a cylindrical shape. The low-pass structure may be a rectangular parallelepiped or a combination of cones with protruding sides. Any space that can be abstracted to a cylindrical shape falls within the scope of protection of this application.

[0031] The low-pass structure is connected to other components within the RF device via a connecting assembly. Specifically, a tap can be connected to the other components on one side of the cylindrical space occupied by the low-pass structure, and a connecting piece can be connected to the other components on the other side of the cylindrical space occupied by the low-pass structure. This is not limited to the specific implementation process.

[0032] The second low-pass structure is arranged on the main body, and the space occupied by the second low-pass structure is in a cylindrical shape.

[0033] The second low-pass structure is located within the space encompassed by the main body. The specific internal structure of the second low-pass structure is not limited. The space occupied by the low-pass structure within the space encompassed by the main body is cylindrical. It is worth noting that the cylindrical shape of the low-pass structure within the space encompassed by the main body does not limit the low-pass structure to a cylindrical shape. The low-pass structure may be a rectangular parallelepiped or a combination of cones with protruding sides. Any space that can be abstracted to a cylindrical shape falls within the scope of protection of this application.

[0034] The low-pass structure connects to other components within the RF device via a connecting assembly. Specifically, the connection can be achieved by connecting to other components via taps on two sides of the cylindrical space occupied by the low-pass structure, and connecting to other components via connecting pieces on the other two sides of the cylindrical space occupied by the low-pass structure. This is not limited to specific implementations.

[0035] The second low-pass structure is described herein as being of the same type and model as the first low-pass structure. Using low-pass structures of the same type and model provides a clearer and more intuitive layout. It is understood that whether the second low-pass structure is of the same type and model as the first low-pass structure or is different does not affect or limit this solution.

[0036] The maximum distance between the cover plate and corresponding positions of the body is greater than the larger value of the diameters of the two cylindrical shapes.

[0037] With the RF device body facing vertically upward, the distance between the horizontal projection of the cover plate and the bottom plate of the RF device body when the cover plate and the RF device body are assembled is called the corresponding distance. For all spaces in the RF device, the distance between corresponding positions should be greater than the larger of the two cylindrical diameters. If the cover plate and the bottom plate of the RF device body are parallel to each other, the distance between corresponding positions of the cover plate and the body in any area should be greater than the larger of the two cylindrical diameters.

[0038] The projections of the first and second low-pass structures on the bottom surface parallel to the body overlap. The projections of the two cylindrical shapes on the bottom surface parallel to the body overlap, meaning that when the two low-pass structures are viewed perpendicular to the bottom surface, they overlap and cannot be fully observed simultaneously.

[0039] In the unimproved filter design, both low-pass structures can be observed, but the space between the low-pass structure and the upper surface of the cover plate and the lower surface of the base plate is not utilized. After the improvement, the two low-pass structures overlap in the vertical direction, thereby improving the overall space utilization efficiency of the filter.

[0040] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages: the projections of multiple low-pass structures on a plane parallel to the bottom surface of the body overlap, thereby improving the space utilization rate within the radio frequency device.

[0041] The following describes some optional options for the implementation of this plan:

[0042] In the first aspect, an isolation sheet is provided between the first low-pass structure and the second low-pass structure.

[0043] After the first low-pass structure and the second low-pass structure have an upper and lower positional relationship, the distance between the first low-pass structure and the second low-pass structure may be relatively close. During the transmission process of the radio frequency signal, the signals transmitted in the first low-pass structure and the second low-pass structure may affect each other. Therefore, providing an isolation plate in the area between the first low-pass structure and the second low-pass structure can reduce the degree of mutual influence between the signals transmitted in the first low-pass structure and the second low-pass structure, thereby improving the transmission efficiency of the radio frequency signal.

[0044] In the second aspect, the area of ​​the overlapping portion of the first low-pass structure and the second low-pass structure is equal to the projection area of ​​the single cylindrical shape on the bottom surface of the body.

[0045] The area of ​​the overlapping portion of the first low-pass structure and the second low-pass structure is equal to the projection area of ​​a single cylindrical shape on the bottom surface of the body. That is, the first low-pass structure and the second low-pass structure are arranged vertically, and the first low-pass structure is completely below the second low-pass structure. In this case, compared with the originally wasted space, the utilized space is maximized. Relatively speaking, the effect in terms of space utilization is the best.

[0046] In the case where the first low-pass structure and the second low-pass structure are the same type of low-pass structures, the projected area of ​​the two on the bottom surface of the main body is equal to the projected area of ​​a single cylindrical shape on the bottom surface of the main body, that is, the two cylindrical shapes are perpendicular to each other and completely overlap. This arrangement is beautiful and convenient for other maintenance personnel to determine the area where the low-pass structure is located.

[0047] In a third aspect, a low-pass cover plate covering the first low-pass structure or the second low-pass structure is provided on the bottom surface of the main body.

[0048] like Figure 3 The filter also includes a low-pass cover 204. When the first and second low-pass structures are arranged vertically, the lower low-pass structure is difficult to observe or access through the cover. Therefore, a low-pass cover is installed at a corresponding position on the bottom surface of the main body. The size of the low-pass cover matches the size of the low-pass filter and the position corresponds to the filter. After removing the low-pass cover, the lower low-pass structure can be easily accessed, facilitating maintenance and other operations.

[0049] In a fourth aspect, the first low-pass structure and the second low-pass structure are arranged in the groove of the body.

[0050] In the existing low-pass structure arrangement, the low-pass structure is arranged in a groove of the body. To ensure the connection between the low-pass structure and other components, the groove is generally shallow and high relative to the bottom surface of the body, resulting in unnecessary material waste.

[0051] The first low-pass structure and the second low-pass structure are not within the groove of the body. The groove accommodates two or more groups of low-pass structures, so the depth of the groove can be made deeper, reducing the amount of material used.

[0052] The above content is a description of the present application in conjunction with specific embodiments, and it cannot be considered that the specific implementation of the present application is limited to these embodiments. For ordinary technicians in the technical field to which the present application belongs, they can make several changes and substitutions without departing from the concept of the present application, and in this case, they should be considered to fall within the scope of protection of the present application.

Claims

1. A radio frequency device, characterized in that: include: A cover plate, a body, a first low-pass structure and a second low-pass structure; The first low-pass structure is arranged on the main body, and the space occupied by it is cylindrical; The second low-pass structure is provided on the body and occupies a cylindrical space, and the maximum distance between the corresponding positions of the cover plate and the body is greater than the larger value of the diameters of the two cylindrical shapes; The first low-pass structure and the second low-pass structure are respectively arranged in the first groove and the second groove of the main body, and there is a solid part between the first groove and the second groove; along the thickness direction of the RF device, the cover plate, the first groove, the solid part, the second groove, and the main body bottom plate are arranged in sequence; the projections of the first low-pass structure and the second low-pass structure on the bottom surface parallel to the main body have overlapping parts.

2. The radio frequency device according to claim 1, wherein: The radio frequency device is a filter.

3. The radio frequency device according to claim 1, wherein: The first low-pass structure is connected to other components via a connecting component, and the connecting component includes a tap and a connecting piece.

4. The radio frequency device according to claim 1, wherein: The second low-pass structure is connected to other components via a connecting component, and the connecting component includes a tap and a connecting piece.

5. The radio frequency device according to claim 1, wherein: An isolation sheet is provided between the first low-pass structure and the second low-pass structure.

6. The radio frequency device according to claim 1, wherein: The first low-pass structure and the second low-pass structure are low-pass structures of the same type.

7. The radio frequency device according to claim 1, characterized in that: If the projection areas of the first low-pass structure and the second low-pass structure on the bottom surface parallel to the body are equal, then the area of ​​the overlapping portion is equal to the projection area of ​​the single cylindrical shape on the bottom surface of the body; If the projection areas of the first low-pass structure and the second low-pass structure on the bottom surface parallel to the body are unequal, the area of ​​the overlapping portion is equal to the smaller value of the projection areas of the two cylindrical shapes on the bottom surface of the body.

8. The radio frequency device according to claim 1, wherein: A central axis of the first low-pass structure is parallel to a central axis of the second low-pass structure.

9. The radio frequency device according to claim 1, wherein: The bottom surface of the body is provided with a low-pass cover plate covering the first low-pass structure or the second low-pass structure.

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