Structure design of low-loss microstrip filter of KU frequency band
By introducing a frictional resistance mechanism between the inner and outer cylinders and a warning sign design into the KU-band low-loss microstrip filter, the problem of difficult-to-observe loose joints is solved, enabling convenient maintenance and inspection and reducing the frequency of loosening.
Patent Information
- Application Number
- CN202521011794.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-05-22
AI Technical Summary
Existing KU-band low-loss microstrip filters are prone to loosening of connectors during use, leading to maintenance difficulties, especially since minor loosening is difficult to observe with the naked eye.
An indicator mechanism for the inner and outer cylinders was designed. The inner and outer cylinders resist the rotation of the joint assembly and connector through friction, and expose the indicator mark in the observation port when loose, so that maintenance personnel can easily judge the looseness.
The design of the inner and outer cylinders simplifies the inspection of loose joints, reduces the frequency of loose joints, and improves maintenance efficiency.
Smart Images
Figure CN223911841U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of filter structure technology, specifically relating to the design of a low-loss microstrip filter structure in the Ku band. Background Technology
[0002] The Ku-band low-loss microstrip filter is a microwave device operating in the 12 to 18 GHz frequency band. Its main body consists of a dielectric substrate and conductive microstrip lines, with several connectors on the outside. In use, the signal is input through one connector, filtered by the device, and then output through the other connector to achieve the filtering function.
[0003] In the operation of existing Ku-band low-loss microstrip filters, the connectors on the main body are generally connected to other components via threads. Although the threads themselves are self-locking, they can still loosen under changing operating conditions, causing interference with the normal operation of the filter. This requires maintenance personnel to check the connection of the connectors. However, if the number of rotations after the threaded connection is loose is relatively small, it is difficult to observe the loosening directly with the naked eye. This makes the existing filter structure inconvenient for maintenance personnel to check the connectors. Utility Model Content
[0004] The purpose of this invention is to provide a low-loss microstrip filter structure design for the Ku band. The inner and outer cylinders can move relative to each other when the connector assembly and connector are loose. This allows maintenance personnel to determine whether the connector assembly and connector are loose by observing whether an indicator is exposed in the observation port. Furthermore, the friction between the outer and inner cylinders can prevent relative rotation between the connector assembly and connector, thus reducing the likelihood of loosening.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] A low-loss microstrip filter structure design for the Ku-band includes a body, with connector assemblies fixedly connected to both ends of the body, and further includes:
[0007] The prompting mechanism is disposed on the connector assembly. The prompting mechanism includes an outer cylinder detachably connected to the connector assembly, an inner cylinder rotatably connected to the inner side of the outer cylinder, an observation port being provided at one end of the outer cylinder near the inner cylinder, and a prompting mark being provided on the surface of the inner cylinder at one end near the outer cylinder.
[0008] As the inner cylinder moves outward along the outer cylinder, the inner cylinder causes the indicator sign to move outward, bringing the indicator sign to the observation port.
[0009] The outer cylinder comprises a first upper cylinder body and a first lower cylinder body arranged outside the joint assembly, one end of the first upper cylinder body is hinged to one end of the first lower cylinder body, and the other end of the first upper cylinder body is detachably connected to the other end of the first lower cylinder body.
[0010] The end of the first upper cylinder body is slidably connected with a first bolt, and the end of the first lower cylinder body is threadedly connected with the first bolt.
[0011] The inner cylinder comprises a second upper cylinder body and a second lower cylinder body arranged inside the outer cylinder, one end of the second upper cylinder body is hinged to one end of the second lower cylinder body, and the other end of the second upper cylinder body is detachably connected to the other end of the second lower cylinder body.
[0012] The prompt mark comprises a plurality of prompt lines arranged on the end surface of the inner cylinder close to the outer cylinder, and the plurality of prompt lines are distributed along the axial direction of the inner cylinder.
[0013] The prompt mark comprises a plurality of prompt rings fixedly arranged on the end surface of the inner cylinder close to the outer cylinder, and the plurality of prompt rings are distributed along the axial direction of the inner cylinder.
[0014] The utility model discloses the technical effect achieved is:
[0015] The inner cylinder and the outer cylinder are relatively moved when the joint assembly and the connecting head are loose, so that the prompt mark is exposed in the observation port, the maintenance personnel judges whether the joint assembly and the connecting head are loose or not by observing whether the prompt mark is exposed in the observation port, which replaces the mode that the maintenance personnel directly observes the joint assembly and the connecting head in the prior art, and facilitates the maintenance personnel to check the connection of the joint assembly and the connecting head.
[0016] The prompt mechanism is arranged, and the relative rotation between the joint assembly and the connecting head is hindered through the friction between the outer cylinder and the inner cylinder, so that the loosening of the joint assembly and the connecting head is reduced. DRAWINGS
[0017] Figure 1 It is the overall structure schematic view in the utility model;
[0018] Figure 2 It is the structure schematic view of the joint assembly and the prompt mechanism in one angle in the utility model;
[0019] Figure 3 It is the structure schematic view of the joint assembly and the prompt mechanism in another angle in the utility model;
[0020] Figure 4 It is the structure schematic view of the joint assembly, the prompt mechanism and the connecting head in the utility model;
[0021] Figure 5 is the explosion schematic view of the joint assembly, the prompting mechanism and the connecting head in the utility model;
[0022] Figure 6 is the section view schematic view of the prompting line and the outer cylinder in the utility model;
[0023] Figure 7 is the section view schematic view of the prompting ring and the outer cylinder in the utility model.
[0024] In the drawings, the component list represented by each sign is as follows:
[0025] 10, machine body;11, joint assembly;20, prompting mechanism;21, outer cylinder;22, inner cylinder;23, observation port;24, prompting mark;31, first upper cylinder body;32, first lower cylinder body;33, first bolt;34, second upper cylinder body;35, second lower cylinder body;41, prompting line;42, prompting ring. Specific implementation
[0026] In order to make the purpose and the advantage of the utility model more clear and obvious, the following is combined with the embodiment to carry out the specific description of the utility model. It should be understood that the following text is only used to describe one or several specific implementation modes of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.
[0027] Example one
[0028] As Figures 1 to 6 shown, it is the first embodiment of the utility model, and the embodiment provides a simulation mobile phone drum experiment fixture, including machine body 10, both ends of machine body 10 are fixedly connected with joint assembly 11, still including: prompting mechanism 20, prompting mechanism 20 is arranged on joint assembly 11, and prompting mechanism 20 includes outer cylinder 21 that can be detachably connected on joint assembly 11, and the inner side of outer cylinder 21 is rotatably connected with inner cylinder 22, and the one end of outer cylinder 21 close to inner cylinder 22 is provided with observation port 23, and the one end surface of inner cylinder 22 close to outer cylinder 21 is provided with prompting mark 24.
[0029] It needs explanation that the inside of the machine body 10 is provided with a medium substrate (not shown in the figure) and a conductive microstrip line (not shown in the figure), which are prior art and are used to realize the filtering function of the filter, and will not be described here again, the end of the joint assembly 11 is provided with a connector, one end of the connector is threadedly connected with the joint assembly 11, and the other end of the connector is used to connect other devices (not shown in the figure) through a cable (not shown in the figure), the joint assembly 11 and the connector are preferably "N" type joints in the utility model, the "N" type joint is prior art, and the connector and the joint assembly 11 are the male head and the female head of the "N" type joint, the male head is the "insertion end", and the female head is the "receiving end", and the two are used in cooperation and detachable connection, which is prior mature technology and will not be described here again, the inner side of the outer cylinder 21 is subjected to surface friction treatment, for increasing the friction between the outer cylinder 21 and the inner cylinder 22, the outer side of the inner cylinder 22 is matched with the inner side of the outer cylinder 21, and the inner side of the inner cylinder 22 is matched with the outer side surface of the connector.
[0030] In this embodiment, the connecting head is screwed on the joint assembly 11, the inner cylinder 22 is arranged at the end of the connecting head close to the joint assembly 11, and the outer cylinder 21 is arranged outside the inner cylinder 22, so that the indication mark 24 is aligned with the edge of the observation port 23 away from the end of the joint assembly 11, i.e., the indication mark 24 is not coincident with the observation port 23, and the outer cylinder 21 blocks the indication mark 24 so that the indication mark 24 is exposed in the external field of view. The inner cylinder 22 is fixedly arranged on the connecting head, and the outer cylinder 21 is fixedly arranged on the joint assembly 11. On the one hand, due to the friction between the outer cylinder 21 and the inner cylinder 22, the relative rotation between the joint assembly 11 and the connecting head is hindered, so that, in addition to the self-locking of the thread, the loosening between the joint assembly 11 and the connecting head is reduced by the friction between the outer cylinder 21 and the inner cylinder 22. On the other hand, when the joint assembly 11 and the connecting head are loosened, i.e., the connecting head moves outwardly while rotating along the joint assembly 11, the connecting head moves outwardly while driving the inner cylinder 22 to move outwardly along the outer cylinder 21, so that the inner cylinder 22 drives the indication mark 24 to move outwardly, and the edge of the indication mark 24 away from the end of the joint assembly 11 enters the inside of the observation port 23, so that the indication mark 24 is exposed in the external field of view, facilitating the maintenance personnel to judge whether the joint assembly 11 and the connecting head are loosened by observing whether the indication mark 24 is exposed in the observation port 23. Specifically, when the maintenance personnel observes that the indication mark 24 is exposed in the observation port 23, it means that the joint assembly 11 and the connecting head are loosened. When the maintenance personnel observes that the indication mark 24 is not exposed in the observation port 23, it means that the joint assembly 11 and the connecting head are not loosened. Compared with the prior art, even if the joint assembly 11 and the connecting head are slightly loosened, the indication mark 24 is still exposed in the observation port 23, which facilitates the maintenance personnel to know the loosening condition, and changes the way of directly observing the loosening condition of the joint assembly 11 and the connecting head by the naked eye to the way of judging the loosening condition of the joint assembly 11 and the connecting head by observing the relative position of the indication mark 24 and the observation port 23, which reduces the difficulty in observing the loosening condition by the naked eye in the case of slight loosening and facilitates the maintenance personnel to check the connection condition of the joint assembly 11 and the connecting head.
[0031] As shown in Figure 2 , Figure 3 and Figure 5 , the outer cylinder 21 comprises a first upper cylinder body 31 and a first lower cylinder body 32 arranged outside the joint assembly 11. One end of the first upper cylinder body 31 is hinged to one end of the first lower cylinder body 32, and the other end of the first upper cylinder body 31 is detachably connected to the other end of the first lower cylinder body 32.
[0032] It should be noted that the first upper cylinder body 31 and the first lower cylinder body 32 together form a complete cylinder body.
[0033] In this embodiment, when the outer cylinder 21 needs to be sleeved on the inner cylinder 22, the end of the first upper cylinder 31 and the end of the first lower cylinder 32 are disassembled, and the first upper cylinder 31 and the first lower cylinder 32 are relatively rotated outward, so that the opening distance between the end of the first upper cylinder 31 and the end of the first lower cylinder 32 is increased, thereby facilitating the sleeving of the outer cylinder 21 on the inner cylinder 22. After sleeving, the end of the first upper cylinder 31 and the end of the first lower cylinder 32 are connected together, so that the distance between the end of the first upper cylinder 31 and the end of the first lower cylinder 32 is reduced, thereby making the first upper cylinder 31 and the first lower cylinder 32 form a complete cylinder and be fixed on the joint assembly 11, facilitating the disassembly and assembly of the outer cylinder 21.
[0034] As shown in Figure 2 , Figure 3 and Figure 5 , the end of the first upper cylinder 31 is slidingly connected with a first bolt 33, and the first bolt 33 is threadedly connected with the end of the first lower cylinder 32.
[0035] It should be noted that the end of the first lower cylinder 32 is provided with a first internal threaded hole, and the first internal threaded hole is threadedly matched with the first bolt 33.
[0036] In this embodiment, the end of the first upper cylinder 31 and the end of the first lower cylinder 32 are detachably connected through the first bolt 33, thereby facilitating the disassembly and assembly of the outer cylinder 21.
[0037] As shown in Figure 2 , Figure 3 and Figure 5 , the inner cylinder 22 includes a second upper cylinder 34 and a second lower cylinder 35 arranged inside the outer cylinder 21, one end of the second upper cylinder 34 is hingedly connected with one end of the second lower cylinder 35, and the other end of the second upper cylinder 34 is detachably connected with the other end of the second lower cylinder 35.
[0038] It should be noted that the second upper cylinder 34 and the second lower cylinder 35 together form a complete cylinder, the end of the second upper cylinder 34 is slidingly connected with a second bolt, the end of the second lower cylinder 35 is provided with a second internal thread, and the second bolt is threadedly matched with the second internal thread, for detachable connection between the second upper cylinder 34 and the second lower cylinder 35.
[0039] In the embodiment, when the inner cylinder 22 needs to be sleeved on the connecting head, the end portion of the second upper cylinder 34 and the end portion of the second lower cylinder 35 are disassembled, the second upper cylinder 34 and the second lower cylinder 35 are relatively rotated to the outside, the distance between the end portion of the second upper cylinder 34 and the end portion of the second lower cylinder 35 is increased, so that the inner cylinder 22 is sleeved on the connecting head, and then the end portion of the second upper cylinder 34 and the end portion of the second lower cylinder 35 are connected together, so that the distance between the end portion of the second upper cylinder 34 and the end portion of the second lower cylinder 35 is reduced, so that the second upper cylinder 34 and the second lower cylinder 35 form a complete cylinder and are fixed on the connecting head, and the inner cylinder 22 is convenient to disassemble and assemble.
[0040] As shown in Figure 6 The prompt mark 24 comprises a plurality of prompt lines 41 formed on the end surface of the inner cylinder 22 close to the outer cylinder 21, and the plurality of prompt lines 41 are distributed along the axial direction of the inner cylinder 22.
[0041] It should be noted that the prompt line 41 is a groove formed on the surface of the inner cylinder 22.
[0042] In the embodiment, when the joint assembly 11 and the connecting head are loose, the more serious the looseness is, the greater the distance that the connecting head moves to the outside along the joint assembly 11 is, and the greater the distance that the connecting head moves to the outside along the joint assembly 11 is, the greater the number of the prompt lines 41 exposed in the observation port 23 is, so that the maintenance personnel can judge the looseness of the joint assembly 11 and the connecting head by observing the number of the prompt lines 41 exposed in the observation port 23, that is, the more the number of the prompt lines 41 exposed is, the greater the distance that the connecting head moves to the outside along the joint assembly 11 is, and the more serious the looseness between the joint assembly 11 and the connecting head is, so that the maintenance personnel can check the connection of the joint assembly 11 and the connecting head.
[0043] Embodiment two
[0044] Referring to Figure 7 For the second embodiment of the utility model, the difference between the embodiment two and the embodiment one is that the prompt mark 24 comprises a plurality of prompt rings 42 fixedly arranged on the end surface of the inner cylinder 22 close to the outer cylinder 21, and the plurality of prompt rings 42 are distributed along the axial direction of the inner cylinder 22.
[0045] It should be noted that the prompt ring 42 is a paint ring coated on the surface of the inner cylinder 22, and the plurality of prompt rings 42 are different in color.
[0046] In the embodiment, when the joint assembly 11 and the connecting head are loose, the connecting head drives the prompt sign 24 to move outward through the inner cylinder 22, so that the prompt ring 42 is exposed in the observation port 23, when the looseness is serious, the prompt ring 42 with different colors is exposed in the observation port 23, so that the maintenance personnel can judge the looseness degree of the joint assembly 11 and the connecting head by observing the color of the exposed prompt ring 42, compared with setting the prompt line 41, the situation that the maintenance personnel counts the number of the prompt line 41 is avoided, and it is convenient for the maintenance personnel to observe the exposure of the prompt sign 24 in the observation port 23 more intuitively.
[0047] The working principle of the utility model is as follows: after the connecting head is connected to the joint assembly 11, if the looseness occurs between the connecting head and the joint assembly 11, the connecting head moves outward along the joint assembly 11 and drives the prompt sign 24 to move to the inside of the observation port 23 through the inner cylinder 22, so that the prompt sign 24 is exposed in the observation port 23, it is convenient for the maintenance personnel to observe the exposure of the prompt sign 24 in the observation port 23 from the outside, so that it is convenient for the maintenance personnel to judge the looseness of the joint assembly 11 and the connecting head by observing the exposure of the prompt sign 24, it is convenient for the maintenance personnel to check the connection of the joint assembly 11 and the connecting head, and the friction between the inner cylinder 22 and the outer cylinder 21 hinders the relative rotation between the joint assembly 11 and the connecting head, so that it is convenient to reduce the looseness of the joint assembly 11 and the connecting head.
[0048] The above only is the preferred embodiment of the utility model, it should be pointed out that, for ordinary technical personnel in the prior art, on the premise of not departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model. The structure, device and operation method not specifically described and explained in the utility model, if no special description and limitation, are implemented according to the conventional means in the field.
Claims
1. A low-loss microstrip filter structure design for KU band, characterized in that, It comprises a body (10), both ends of the body (10) are fixedly connected with a joint assembly (11), and further comprises: A prompt mechanism (20) is arranged on the joint assembly (11), the prompt mechanism (20) comprises an outer cylinder (21) detachably connected with the joint assembly (11), an inner cylinder (22) is rotatably connected to the inner side of the outer cylinder (21), an observation port (23) is formed in one end of the outer cylinder (21) close to the inner cylinder (22), and a prompt mark (24) is arranged on the surface of one end of the inner cylinder (22) close to the outer cylinder (21); Wherein, after the inner cylinder (22) moves outward along the outer cylinder (21), the inner cylinder (22) drives the prompt mark (24) to move outward, so that the prompt mark (24) moves to the observation port (23).
2. The KU band low-loss microstrip filter structure design of claim 1, wherein: The outer cylinder (21) comprises a first upper cylinder body (31) and a first lower cylinder body (32) arranged outside the joint assembly (11), one end of the first upper cylinder body (31) is hinged with one end of the first lower cylinder body (32), and the other end of the first upper cylinder body (31) is detachably connected with the other end of the first lower cylinder body (32).
3. The KU band low-loss microstrip filter structure design of claim 2, wherein: The end of the first upper cylinder body (31) is slidably connected with a first bolt (33), and the first bolt (33) is threadedly connected with the end of the first lower cylinder body (32).
4. The KU band low-loss microstrip filter structure design of claim 1, wherein: The inner cylinder (22) comprises a second upper cylinder body (34) and a second lower cylinder body (35) arranged inside the outer cylinder (21), one end of the second upper cylinder body (34) is hinged with one end of the second lower cylinder body (35), and the other end of the second upper cylinder body (34) is detachably connected with the other end of the second lower cylinder body (35).
5. The KU band low-loss microstrip filter structure design of claim 1, wherein: The prompt mark (24) comprises a plurality of prompt lines (41) formed on the surface of one end of the inner cylinder (22) close to the outer cylinder (21), and a plurality of the prompt lines (41) are distributed along the axis direction of the inner cylinder (22).
6. The KU band low-loss microstrip filter structure design of claim 1, wherein: The prompt mark (24) comprises a plurality of prompt rings (42) fixedly arranged on the surface of one end of the inner cylinder (22) close to the outer cylinder (21), and a plurality of the prompt rings (42) are distributed along the axis direction of the inner cylinder (22).