Slotted antenna capable of adjusting resonant frequency and wireless communication electronic equipment
By setting a positioning structure and adjusting fixing holes between the antenna bracket and the equipment housing, the relative position of the slotted antenna can be adjusted, solving the high cost problem caused by the need to modify the antenna bracket, and realizing flexible adjustment of the frequency range and reduction of production costs.
Patent Information
- Application Number
- CN202520112830.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In existing technologies, antenna brackets need to be modified when the equipment design changes, resulting in high costs for mold making and debugging.
By setting multiple first positioning structures on the antenna bracket and a second positioning structure on the device housing, and in conjunction with adjusting and fixing holes, the relative position of the antenna bracket and the slotted metal ring can be adjusted, thereby changing the resonant frequency range.
The resonant frequency can be changed without modifying the antenna support structure, improving compatibility, eliminating the need for mold opening and repair steps, shortening debugging time, and reducing production costs.
Smart Images
Figure CN223693356U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a slotted antenna and wireless communication electronic equipment belong to antenna technical field. BACKGROUND
[0002] The design of the conventional tablet computer WiFi antenna miniaturization mainly relies on the clearance under the antenna, so it can be very thin. However, these methods are no longer applicable when the frame is all metal, because the metal frame is equivalent to a shield, and the radiated electromagnetic waves of the antenna are blocked by the metal frame and cannot propagate. The feed branch, ground point and metal frame are connected to form a ring structure, or a slot is opened on the ring to form an IFA or monopole structure. The main design idea of these methods is to combine the original shielding electromagnetic wave ring with the antenna, so that part of the ring antenna participates in radiation. Therefore, not only can the antenna be miniaturized, but also the antenna structure can be designed using the existing components.
[0003] However, in the prior art, the position of the part of the antenna relative to the ring structure is determined during antenna design, and the position cannot be changed. Therefore, when the design of the device using the antenna changes, causing changes in the thickness and length of the ring structure, the antenna support must be modified accordingly, which involves re-molding, mold modification and antenna debugging, resulting in high development and production costs. SUMMARY
[0004] In view of the defects of the prior art, the utility model provides a slotted antenna with adjustable resonant frequency, which aims to solve the problem of high cost caused by the need for modification of the antenna support when the ring structure forming part of the antenna changes due to product iteration. The utility model also provides a wireless communication electronic device using the slotted antenna.
[0005] The technical scheme of the utility model is as follows: a slotted antenna with adjustable resonant frequency, comprising a slotted metal ring provided on a device housing and an antenna support, the antenna support being provided with an antenna unit for forming the slotted antenna, the antenna support being provided with a plurality of first positioning structures, the device housing being provided with a second positioning structure, the first positioning structure and the second positioning structure cooperating to determine the relative position of the device housing and the antenna support, the second positioning structure cooperating with different first positioning structures to change the relative position of the antenna support and the slotted metal ring, the antenna support being provided with an adjusting fixing hole, the antenna support being fixedly connected to the device housing by the adjusting fixing hole through a fastener.
[0006] Further, the adjusting fixing hole is a waist-shaped hole, and the arrangement direction of the plurality of first positioning structures for changing the relative position of the antenna support and the slotted metal ring is parallel to the length direction of the waist-shaped hole.
[0007] Further, the first positioning structure is a positioning hole, and the second positioning structure is a positioning column.
[0008] Further, the first positioning structures are partially overlapped.
[0009] Further, the first positioning structure and the adjusting fixing hole are arranged on two sides of the antenna support.
[0010] Further, the minimum distance between the first positioning structure and the adjusting fixing hole and the edge of the antenna support is not less than 0.6 mm.
[0011] Another technical scheme of the utility model provides a wireless communication electronic equipment which comprises the slotted antenna with adjustable resonant frequency.
[0012] Compared with the prior art, the technical scheme has the advantages that:
[0013] The utility model discloses a plurality of first positioning structures of antenna support and the second positioning structure of equipment shell are positioned to change the relative position of antenna support and slotted metal ring, and then the resonant frequency range of slotted antenna can be changed to meet the design requirement without modifying the structure of antenna support, improve the compatibility of slotted antenna, save the step of opening and modifying the mould, shorten the project debugging time, and reduce the production cost. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the structure schematic diagram (part) of the slotted antenna with adjustable resonant frequency of embodiment.
[0015] Figure 2 It is the structure schematic diagram of the antenna support of the slotted antenna with adjustable resonant frequency of embodiment.
[0016] Figure 3 It is the structure schematic diagram (part) of the equipment shell of the slotted antenna with adjustable resonant frequency of embodiment.
[0017] Figure 4 It is the structure schematic diagram (part) of the antenna support in the slotted antenna with adjustable resonant frequency of embodiment in the second positioning position.
[0018] Figure 5 It is the structure schematic diagram (part) of the antenna support in the slotted antenna with adjustable resonant frequency of embodiment in the third positioning position. DETAILED DESCRIPTION
[0019] The utility model will be further explained in combination with examples, and it should be understood that these examples are only used for explaining the utility model and not for limiting the scope of the utility model. After reading the description, those skilled in the art can make various equivalent modifications of the description, and all of these modifications fall within the scope defined by the claims attached to the present application.
[0020] Please combine Figures 1 to 3 As shown in the figure, the wireless communication electronic device of the embodiment can be a notebook computer, a mobile phone, etc. The wireless communication electronic device comprises a slotted antenna with adjustable resonant frequency. The slotted antenna with adjustable resonant frequency comprises two parts. One part is a device shell 1 of the wireless communication electronic device, and the other part is an antenna support 2 fixedly connected with the device shell 1.
[0021] The frame of the device shell 1 is made of metal and has a slotted structure, forming a slotted metal ring 101. The shape of the antenna support 2 is determined according to product design, and the antenna support 2 is processed with an antenna unit 201 for jointly constituting a slotted antenna with the slotted metal ring 101. The antenna support 2 is fixedly connected with the device shell 1 to ensure that the relative position of the antenna support 2 and the slotted metal ring 101 meets the design requirements, so that the slotted antenna meets the predetermined performance requirements.
[0022] Specifically, the antenna support 2 is provided with adjusting fixing holes 203 and a plurality of first positioning structures 202 at the positions on both sides of the antenna support 2, and the device shell 1 is provided with second positioning structures 102. The relative position of the device shell 1 and the antenna support 2 is determined by the cooperation of the first positioning structures 202 and the second positioning structures 102, and the relative position of the antenna support 2 and the slotted metal ring 101 is determined. The antenna support 2 is fixedly connected with the device shell 1 by fasteners 3 through the adjusting fixing holes 203. When different first positioning structures 202 and second positioning structures 102 are selected for cooperation, the relative position of the device shell 1 and the antenna support 2 can be changed, so that the aforementioned relative position can be adjusted according to the thickness, length and other dimensions of the slotted metal ring 101 on the iteration model, the resonant frequency range of the slotted antenna is changed, the antenna has better compatibility, the mold opening and mold repairing steps are saved, the project debugging time is shortened, and the production cost is saved.
[0023] In the embodiment, the antenna support 2 is made of plastic material. Considering the structural strength requirement, the first positioning structure 202 adopts a positioning hole with a hole diameter of 0.8 mm, and the minimum distance of the positioning hole from the edge of the antenna support 2 is not less than 0.6 mm. The adjusting fixing hole 203 is a waist-shaped hole. The length direction of the waist-shaped hole is perpendicular to one side of the frame of the device shell 1. In order to save space, the three positioning holes are arranged in partial overlap, and the arrangement direction is parallel to the length direction of the waist-shaped hole. Correspondingly, the second positioning structure 102 on the device shell 1 is provided with a positioning column matched with the positioning hole, and the positioning column is inserted into different positioning holes for positioning. For example,Figure 1 As shown, when the positioning column cooperates with the first positioning hole farthest from the frame of the device shell 1, the antenna support 2 is closest to the slotted metal ring 101, as shown in Figure 4 As shown, when the positioning column cooperates with the second positioning hole at a medium distance from the frame of the device shell 1, the antenna support 2 is at a medium distance from the slotted metal ring 101, as shown in Figure 5 As shown, when the positioning column cooperates with the third positioning hole closest to the frame of the device shell 1, the antenna support 2 is farthest from the slotted metal ring 101. The device shell 1 is provided with a fixing hole 103, and after the positioning column cooperates with the positioning hole to position the antenna support 2, a screw is screwed into the fixing hole 103 of the device shell 1 through the waist-shaped hole to fasten the antenna support 2.
Claims
1. A slotted antenna with adjustable resonant frequency, characterized in that, The antenna bracket is provided with a plurality of first positioning structures, the device shell is provided with a second positioning structure, the first positioning structure and the second positioning structure cooperate to determine the relative position of the device shell and the antenna bracket, the second positioning structure cooperates with different first positioning structures to change the relative position of the antenna bracket and the slotted metal ring, the antenna bracket is provided with an adjusting fixing hole, and the antenna bracket is fixedly connected with the device shell by a fastener through the adjusting fixing hole.
2. The slotted antenna with adjustable resonant frequency according to claim 1, characterized in that, The adjusting fixing hole is a waist-shaped hole, the arrangement direction of the plurality of first positioning structures for changing the relative position of the antenna bracket and the slotted metal ring is parallel to the length direction of the waist-shaped hole.
3. The slotted antenna with adjustable resonant frequency according to claim 1, characterized in that, The first positioning structure is a positioning hole, and the second positioning structure is a positioning column.
4. The slotted antenna of adjustable resonant frequency according to claim 3, characterized in that, The first positioning structures are partially overlapped and arranged.
5. The slotted antenna of adjustable resonant frequency according to claim 3, characterized in that, The minimum distance between the first positioning structure and the adjusting fixing hole and the edge of the antenna bracket is not less than 0.6 mm.
6. The slotted antenna of adjustable resonant frequency according to claim 1, characterized in that, The first positioning structure and the adjusting fixing hole are arranged on both sides of the antenna bracket.
7. A wireless communication electronic device, comprising: The slotted antenna with adjustable resonant frequency comprises the slotted antenna with adjustable resonant frequency according to any one of claims 1 to 6.