Device for realizing waveguide filter port time delay intensity adjustability
By introducing metal guide rods and pin structures into the waveguide filter, the adjustability of the filter port delay strength is achieved, which solves the problem of low design efficiency of traditional waveguide filters, reduces production costs and improves design efficiency.
Patent Information
- Application Number
- CN202423017322.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing waveguide filters require repeated modifications to the cavity capacitance coupling window during the design process, resulting in low design efficiency and increased costs.
By employing a combination of metal guide rods, pin structures, and metal taps, the waveguide filter port delay strength can be adjusted by modifying the size and welding position of the metal guide rods and taps, thus avoiding changes to the cavity structure.
It enables convenient adjustment of the port delay strength of waveguide filter, reduces design difficulty and production cost, while maintaining product performance, and is suitable for various products in the radio frequency field.
Smart Images
Figure CN223612652U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to communication waveguide filter technical field, concretely relates to a kind of waveguide filter port time delay intensity adjustable device. BACKGROUND
[0002] Filter is the most basic signal processor, the development of modern communication technology, the requirement of microwave device is also higher and higher, especially with the requirement of bandwidth performance of system, the requirement of filter of system is also higher and higher, variety is also more and more, the main performance of filter is frequency selection and filtering.
[0003] Since old-fashioned waveguide filter is capacitive coupling mode, cavity capacitive coupling window needs to be repeatedly modified, which reduces product design efficiency, increases design difficulty, and greatly increases the cost of entire product design. UTILITY MODEL CONTENT
[0004] To solve the problems in the background art, the utility model provides a kind of waveguide filter port time delay intensity adjustable device, the utility model realizes the adjustable nature of waveguide filter port time delay intensity under the premise of not needing to change cavity structure, reduces product design difficulty and production cost.
[0005] To solve the above problems, the utility model adopts the following technical scheme: a kind of waveguide filter port time delay intensity adjustable device, including metal cavity and cover plate, the cover plate is covered on the metal cavity, characterized by further comprising metal guide rod, pin structure, metal tap piece and resonant column, the metal guide rod is arranged outside the metal cavity and is used for connecting external signal port, the resonant column is fixedly arranged in the metal cavity by screw, the metal tap piece is welded on the side wall of the resonant column, the pin structure is arranged on the side wall of the metal cavity, the inner end of the pin structure that extends into the metal cavity is connected with the metal tap piece, the outer end of the pin structure that extends from the metal cavity is connected with the metal guide rod.
[0006] Further, the pin structure includes metal pin and insulating sleeve, the insulating sleeve is sleeved on the metal pin and penetrates the side wall of the metal cavity, the metal pin is spaced apart from the metal cavity and connected with the metal guide rod and the metal tap piece at both ends respectively.
[0007] Further, the material of the insulating sleeve is polytetrafluoroethylene.
[0008] Further, the outer wall of the metal guide rod is covered with heat shrinkable sleeve.
[0009] Further, the material of the heat shrinkable sleeve is polyperfluoroalkyl propylene.
[0010] Further, the size of the metal guide rod and the metal tap piece is adjustable.
[0011] Further, the welding height position of the metal tap piece on the resonant column is adjustable.
[0012] Further, the material of the metal guide rod and the metal tap piece is copper.
[0013] The beneficial effects of the present application are as follows: the metal guide rod, the pin structure and the metal tap piece are arranged, the external signal port is input into the filter where the resonant column is located, the size of the metal guide rod and the metal tap piece is adjusted, the welding position of the metal tap piece on the resonant column is changed, the time delay strength of the filter can be conveniently adjusted, compared with the traditional old waveguide filter capacitor coupling time delay window repeated modification processing, the time delay has no adjustment space, the present application realizes the adjustability of the waveguide filter port time delay strength without changing the cavity structure, and the product design difficulty and production cost are reduced. BRIEF DESCRIPTION OF DRAWINGS
[0014] The present application will be further described below in combination with the drawings and embodiments.
[0015] Figure 1 The present application is a structural schematic view.
[0016] 1, metal cavity; 2, cover plate; 3, metal guide rod; 4, pin structure; 5, metal tap piece; 6, resonant column; 7, metal pin; 8, insulating sleeve; 9, heat shrink sleeve. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0018] The metal guide rod 3, the pin structure 4 and the metal tap piece 5 are arranged, the external signal port is input into the filter where the resonant column 6 is located, the size of the metal guide rod 3 and the metal tap piece 5 is adjusted, the welding position of the metal tap piece 5 on the resonant column 6 is changed, the time delay strength of the filter can be conveniently adjusted, compared with the traditional old waveguide filter capacitor coupling time delay window repeated modification processing, the time delay has no adjustment space, the present application realizes the adjustability of the waveguide filter port time delay strength, and meanwhile does not affect the performance use of the product.
[0019] Specifically, asFigure 1 As shown in the figure, the device for adjusting the strength of the waveguide filter port time delay includes a metal cavity 1 and a cover plate 2, the cover plate 2 is arranged on the metal cavity 1, characterized in that it further includes a metal guide rod 3, a pin structure 4, a metal tap piece 5 and a resonant column 6, the metal guide rod 3 is arranged outside the metal cavity 1 and is used for connecting an external signal port, the resonant column 6 is fixedly arranged in the metal cavity 1 by a screw, the metal tap piece 5 is welded on the side wall of the resonant column 6, the pin structure 4 is arranged through the side wall of the metal cavity 1, the inner end of the pin structure 4 extending into the metal cavity 1 is connected with the metal tap piece 5, and the outer end of the pin structure 4 extending out of the metal cavity 1 is connected with the metal guide rod 3.
[0020] Further, the pin structure 4 includes a metal pin 7 and an insulating sleeve 8, the insulating sleeve 8 is arranged on the metal pin 7 and penetrates the side wall of the metal cavity 1, the metal pin 7 is arranged spaced apart from the metal cavity 1 and connected with the metal guide rod 3 and the metal tap piece 5 at both ends respectively. The insulating sleeve 8 plays an insulating role between the metal pin 7 and the metal cavity 1.
[0021] Further, the material of the insulating sleeve 8 is polytetrafluoroethylene.
[0022] Further, the outer wall of the metal guide rod 3 is covered with a heat shrinkable sleeve 9. By covering the heat shrinkable sleeve 9 on the outer wall of the metal guide rod 3, it is ensured that the metal guide rod 3 and the metal cavity 1 maintain an insulating state.
[0023] Further, the material of the heat shrinkable sleeve 9 is polytetrafluoroethylene propylene. Polytetrafluoroethylene propylene has a low dielectric constant, and its thermoplasticity and electrical insulation can meet the insulation requirements of the metal guide rod 3.
[0024] Further, the size of the metal guide rod 3 and the metal tap piece 5 is adjustable. Specifically, by changing the length, thickness, width and other sizes of the metal guide rod 3 and the metal tap piece 5, the adjustment of the time delay strength can be conveniently realized.
[0025] Further, the welding height position of the metal tap piece 5 and the resonant column 6 is adjustable. By welding the metal tap piece 5 at different height positions of the resonant column 6, the purpose of changing the time delay strength can be achieved.
[0026] Further, the material of the metal guide rod 3 and the metal tap piece 5 is copper.
[0027] The utility model discloses when using, through setting up metal guide rod 3, pin structure 4 and metal tap piece 5, input external signal port to the filter of the resonant column 6, through using the metal guide rod 3 and metal tap piece 5 of different length, thickness and width, and change the welding height position of metal tap piece 5 on resonant column 6, can conveniently adjust the time delay of filter, compared with the traditional old -fashioned waveguide filter capacitance coupling time delay window repeatedly modifies processing, time delay has no adjustment space's problem, the utility model realizes the adjustable nature of waveguide filter port time delay intensity, simultaneously does not affect the performance use of product, and has general compatibility, is applicable to the radio frequency field various products, improves the design efficiency, reduces the scrappage rate of product at the same time, saves a large number of social resources and funds.
[0028] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be contained in the protection scope of the utility model.
Claims
1. A device for implementing adjustable strength and length of waveguide filter port time delay, comprising a metal cavity (1) and a cover plate (2), wherein the cover plate (2) is arranged on the metal cavity (1), characterized in that, The metal guide rod (3), the pin structure (4), the metal tap blade (5) and the resonance column (6) are further included, the metal guide rod (3) is arranged outside the metal cavity (1) and is used for connecting an external signal port, the resonance column (6) is fixedly arranged in the metal cavity (1) by a screw, the metal tap blade (5) is welded on the side wall of the resonance column (6), the pin structure (4) is arranged through the side wall of the metal cavity (1), the inner end of the pin structure (4) extending into the metal cavity (1) is connected with the metal tap blade (5), and the outer end of the pin structure (4) extending out of the metal cavity (1) is connected with the metal guide rod (3).
2. The device of claim 1, wherein: The pin structure (4) includes a metal pin (7) and an insulating sleeve (8), the insulating sleeve (8) is sleeved on the metal pin (7) and arranged through the side wall of the metal cavity (1), and the metal pin (7) is arranged at intervals with the metal cavity (1) and connected with the metal guide rod (3) and the metal tap blade (5) at two ends respectively.
3. The device for realizing the adjustable strength of the port delay of a waveguide filter according to claim 2, characterized in that: The material of the insulating sleeve (8) is polytetrafluoroethylene.
4. The device of claim 1, wherein: The outer wall of the metal guide rod (3) is covered with a heat shrinkable sleeve (9). 5. The device for realizing the adjustable strength of waveguide filter port delay according to claim 4, characterized in that: The material of the heat shrinkable sleeve (9) is polytetrafluoroethylene propylene.
6. The device of claim 1, wherein: The sizes of the metal guide rod (3) and the metal tap blade (5) are adjustable.
7. The device of claim 1, wherein: The welding height position of the metal tap blade (5) and the resonance column (6) is adjustable. 8. The device of claim 1, wherein: The materials of the metal guide rod (3) and the metal tap blade (5) are both copper.