CN214797664U

CN214797664U - Waveguide filter convenient to process and provided with annular metal resonant cavity

Info

Publication number: CN214797664U
Application number: CN202120753080.3U
Authority: CN
Inventors: 庞博; 庞福山; 王强; 杨李; 江永勤
Original assignee: Sichuan Aerospace Feiyu Electronic Technology Co ltd
Current assignee: Sichuan Aerospace Feiyu Electronic Technology Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-19
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to a waveguide filter technical field just discloses a waveguide filter of annular metal resonator's convenient to process, including two waveguide ring flanges, the opposite face fixedly connected with metal waveguide of two waveguide ring flanges has seted up flutedly on metal waveguide's the outer wall, the spread groove has been seted up on metal waveguide's the inner wall, and three draw-in groove has all been seted up to the surface about the spread groove is inside, and metal waveguide's inside sets up the quick installation device of harmonious post. Through the setting of the quick installation device of tuning post, when the fixture block contacted with the movable plate, the second spring promoted the fixture block to the movable plate, and the movable plate removed and extrudees first spring, and the joint was accomplished in the fixture block got into the draw-in groove like this to it is fixed with the turning block, just so accomplished the regulation to the coupling regulation post, no matter be just the degree of positivity or the degree of negligence all can relax through the setting of the device adjust, thereby the production of the waveguide filter of being convenient for more.

Description

Waveguide filter convenient to process and provided with annular metal resonant cavity

Technical Field

The utility model relates to a waveguide filter technical field specifically is a waveguide filter of annular metal resonant cavity's processing of being convenient for.

Background

With the development of wireless communication technology, modern advanced radio communication systems require high-performance multifunctional microwave millimeter wave devices to adapt to complex and variable electromagnetic environments. In these radio communication systems, especially in the rf front end transceiver system, the conventional microwave millimeter wave passive waveguide devices, such as waveguide filters, have the advantages of diversified rf functions, low rf insertion loss, large power capacity, etc., and are one of the major concerns of researchers. In CN109149038A, it is mentioned that a forty-five degree included angle or a negative forty-five degree included angle is formed between the side wall of each resonant cavity and the horizontal direction, and a coupling adjustment column is disposed in the internal cavity of the slotted circular waveguide, where the coupling adjustment column in the first resonant cavity is a coupling adjustment column, and the coupling adjustment column is used to realize the coupling of two degenerate electromagnetic wave modes in the two mutually orthogonal directions, and the coupling strength of the coupling adjustment column can be controlled by adjusting the length of the coupling adjustment column extending into the cavity of the resonant cavity.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a waveguide filter of annular metal resonator's processing of being convenient for possesses advantages such as waveguide filter's of being convenient for production, has solved the problem that the tuning post is not convenient for forty-five degrees installations.

(II) technical scheme

In order to realize the above-mentioned waveguide filter production purpose of being convenient for, the utility model provides a following technical scheme: a waveguide filter of an annular metal resonant cavity, which is convenient to process, comprises two waveguide flanges, wherein metal waveguides are fixedly connected to opposite surfaces of the two waveguide flanges, grooves are formed in the outer walls of the metal waveguides, connecting grooves are formed in the inner walls of the metal waveguides, three clamping grooves are formed in the left and right surfaces inside the connecting grooves, a tuning post quick installation device is arranged inside the metal waveguides, a moving plate is connected to the inside of each clamping groove in a sliding mode, a first spring is fixedly connected to the inside of each clamping groove and fixedly connected with the moving plate, each tuning post quick installation device comprises a rotating block, the rotating block is rotatably connected to the inside of each connecting groove, the connecting groove extends out of the front end of each rotating block, a connecting sleeve is fixedly connected to the front surface of each rotating block, a coupling adjusting column is connected to the inner threads of each connecting sleeve, and rotating shafts are rotatably connected to the left and right surfaces of the rotating blocks, the axis of rotation is connected with the inner wall rotation of spread groove, the inside sliding connection who the fixed cover of the equal fixedly connected with in surface has the rotation cover about the turning block, and the inside rotation of rotating the cover is connected with the fixture block, and the inside fixedly connected with second spring of fixed cover rotates cover and second spring fixed connection.

Preferably, the three clamping grooves are arranged on the inner wall of the connecting groove in an inverted 'article' shape, and the number of degrees between the three clamping grooves is forty-five degrees.

Preferably, the shape of the fixture block is a sphere.

Preferably, the clamping block is in sliding clamping connection with the clamping groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a convenient to process's of annular metal resonant cavity waveguide filter possesses following beneficial effect:

1. this annular metal resonator's waveguide filter convenient to processing, through the setting of the quick installation device of tuning post, when fixture block and movable plate contact, the second spring promotes the fixture block to the movable plate, and the movable plate removes and extrudees first spring, accomplishes the joint in the fixture block gets into the draw-in groove like this to it is fixed with the turning block, just so accomplished the regulation to the coupling regulation post, no matter be positive or the burden degree all can relax through the setting of the device adjust, thereby the production of the waveguide filter of being convenient for more.

2. This waveguide filter of annular metal resonator's convenient to process when the fixture block removes with the inner wall contact of spread groove, utilizes the spherical design of fixture block, utilizes the fixture block can self pivoted to set up simultaneously and assist the turning block and accomplish the rotation, thereby has avoided the turning block to take place the dead phenomenon of card and has reduced the device's fault rate.

3. This annular metal resonator's waveguide filter convenient to processing when the movable plate does not receive the exogenic action, first spring outwards releases the movable plate, and then shelters from the draw-in groove to avoid the inside entering dust of draw-in groove, and then promoted the device's clean degree.

Drawings

Fig. 1 is a schematic structural diagram of a waveguide filter of the present invention, which is easy to process and has an annular metal resonant cavity;

fig. 2 is a schematic diagram of the internal structure of the waveguide filter of the present invention, which is convenient for processing and has an annular metal resonant cavity;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a schematic diagram of the internal structure of the waveguide filter connecting groove of the ring-shaped metal resonant cavity, which is convenient to process;

fig. 5 is a schematic structural diagram of a waveguide filter slot of the ring-shaped metal resonant cavity, which is convenient to process;

fig. 6 is a schematic diagram of the planar structure of the waveguide filter of the present invention, which is convenient for processing, of the annular metal resonant cavity.

In the figure: the device comprises a waveguide flange plate 1, a metal waveguide 2, a groove 3, a diaphragm 4, a connecting groove 5, a rotating block 6, a connecting sleeve 7, a coupling adjusting column 8, a clamping groove 9, a moving plate 10, a rotating shaft 11, a fixing sleeve 12, a clamping block 13, a first spring 14, a second spring 15 and a rotating sleeve 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a new technical solution: a waveguide filter of annular metal resonant cavity convenient to process comprises two waveguide flanges 1, the opposite surfaces of the two waveguide flanges 1 are fixedly connected with metal waveguides 2, the inside of the metal waveguide 2 is a hollow structure, the outer wall of the metal waveguide 2 is provided with a groove 3, through the arrangement of the groove 3, the inner surface of the structure of the waveguide filter is convenient to be electroplated with metal in the process of processing, meanwhile, the quality of the waveguide filter is favorably reduced, the inside of the metal waveguide 2 is fixedly connected with a diaphragm 4, the resonant cavity is a cavity region included between the two diaphragms 4 in the metal waveguide 2 or a cavity region included between the two end faces of the metal waveguide 2 and the diaphragm 4, each resonant cavity in the entity of the waveguide resonator is filled with air, electromagnetic waves passing through the metal waveguide 2 are limited in the cavity of the resonant cavity in the form of standing waves, and play roles in storing electromagnetic wave energy and selecting electromagnetic wave frequency, when the device is used, when the movable plate 10 is not subjected to external force, the first spring 14 pushes the movable plate 10 outwards to shield the clamping groove 9, so that dust is prevented from entering the clamping groove 9, and the cleanness of the device is improved;

the inside of the metal waveguide 2 is provided with a tuning column quick installation device, the tuning column quick installation device comprises a rotating block 6, the rotating block 6 is rotatably connected inside a connecting groove 5, the front end of the rotating block 6 extends out of the connecting groove 5, the front surface of the rotating block 6 is fixedly connected with a connecting sleeve 7, the inner wall of the connecting sleeve 7 is provided with a thread groove, the inner thread of the connecting sleeve 7 is connected with a coupling adjustment column 8, the outer wall of the coupling adjustment column 8 is clamped with a thread matched with the thread groove, the left surface and the right surface of the rotating block 6 are both rotatably connected with a rotating shaft 11, the rotating shaft 11 is rotatably connected with the inner wall of the connecting groove 5, the left surface and the right surface of the rotating block 6 are both fixedly connected with a fixed sleeve 12, the inside of the fixed sleeve 12 is slidably connected with a rotating sleeve 16, the inside of the rotating sleeve 16 is rotatably connected with a clamping block 13, and the clamping block 13 can perform self-rotation while sliding in the inside of the fixed sleeve 12, the fixture block 13 is spherical, a second spring 15 is fixedly connected inside the fixed sleeve 12, the rotating sleeve 16 is fixedly connected with the second spring 15, and the fixture block 13 is in sliding clamping connection with the clamping groove 9;

when the device is used, when the angle of the coupling adjusting column 8 needs to be adjusted, the rotating shaft 11 is utilized to drive the rotating block 6 to rotate, the rotating block 6 is rotated to drive the fixing sleeve 12 to rotate, the fixing sleeve 12 drives the clamping block 13 to move, when the clamping block 13 moves to contact with the inner wall of the connecting groove 5, the spherical design of the clamping block 13 is utilized, meanwhile, the clamping block 13 can rotate by itself to assist the rotating block 6 to complete rotation, the phenomenon that the rotating block 6 is clamped is avoided, so that the failure rate of the device is reduced, when the clamping block 13 contacts with the moving plate 10, the clamping block 13 is pushed towards the moving plate 10 by the second spring 15, the moving plate 10 moves to extrude the first spring 14, so that the clamping block 13 enters the clamping groove 9 to complete clamping, the rotating block 6 is fixed, so that the adjustment of the coupling adjusting column 8 can be completed, and the adjustment of either positive forty-five degrees or negative forty-five degrees can be easily performed through the setting of the device, thereby facilitating the production of the waveguide filter.

The working principle is as follows:

when the device is used, firstly, when the movable plate 10 is not acted by external force, the first spring 14 pushes the movable plate 10 outwards to shield the clamping groove 9, thereby preventing dust from entering the inside of the clamping groove 9, further improving the cleanness degree of the device, then when the angle of the coupling adjusting column 8 needs to be adjusted, the rotating shaft 11 is utilized to drive the rotating block 6 to rotate, the rotating block 6 is driven to rotate when rotating, the fixed sleeve 12 drives the clamping block 13 to move, when the clamping block 13 moves and contacts with the inner wall of the connecting groove 5, the spherical design of the clamping block 13 is utilized, meanwhile, the clamping block 13 can be rotated by itself to assist the rotating block 6 to complete rotation, the phenomenon that the rotating block 6 is blocked is avoided, thereby reducing the failure rate of the device, and finally, when the clamping block 13 contacts with the movable plate 10, the second spring 15 pushes the clamping block 13 towards the movable plate 10, the movable plate 10 moves to extrude the first spring 14, so that the clamping block 13 enters the clamping groove 9 to complete clamping, the rotating block 6 is fixed, the adjustment of the coupling adjusting column 8 is completed, and the adjustment can be easily performed through the device no matter whether the positive forty-five degree or the negative forty-five degree is performed, so that the production of the waveguide filter is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a waveguide filter of annular metal resonator convenient to processing, includes two waveguide ring flange (1), the opposite face fixedly connected with metal waveguide (2) of two waveguide ring flange (1), set up fluted (3), its characterized in that on the outer wall of metal waveguide (2): the utility model discloses a tuning post, including metal waveguide (2), connecting groove (5) have been seted up on the inner wall of metal waveguide (2), and three draw-in groove (9) have all been seted up to the surface about inside of connecting groove (5), and three draw-in groove (9) are down "article" word form and set up on the inner wall of connecting groove (5), and the number of degrees between three draw-in groove (9) is forty-five degrees, and the inside of metal waveguide (2) sets up the quick installation device of tuning post.

2. A waveguide filter having a ring-shaped metal resonator as claimed in claim 1, wherein: the movable plate (10) is connected to the inside of the clamping groove (9) in a sliding mode, the first spring (14) is fixedly connected to the inside of the clamping groove (9), and the first spring (14) is fixedly connected with the movable plate (10).

3. A waveguide filter having a ring-shaped metal resonator as claimed in claim 1, wherein: quick installation device of tuning post includes turning block (6), and turning block (6) are rotated and are connected in the inside of spread groove (5), and spread groove (5) are extended to the front end of turning block (6), and the front surface fixedly connected with adapter sleeve (7) of turning block (6), and the inside threaded connection of adapter sleeve (7) has coupling to adjust post (8), and the surface all rotates about turning block (6) and is connected with axis of rotation (11), and axis of rotation (11) are rotated with the inner wall of spread groove (5) and are connected.

4. A waveguide filter having a ring-shaped metal resonator as claimed in claim 3, wherein: the surface all fixedly connected with fixed cover (12) about turning block (6), the inside sliding connection of fixed cover (12) has rotating sleeve (16), and the inside rotation of rotating sleeve (16) is connected with fixture block (13), and the inside fixedly connected with second spring (15) of fixed cover (12), rotating sleeve (16) and second spring (15) fixed connection.

5. A waveguide filter having a ring-shaped metal resonator as claimed in claim 4, wherein: the fixture block (13) is spherical.

6. A waveguide filter having a ring-shaped metal resonator as claimed in claim 4, wherein: the clamping block (13) is in sliding clamping connection with the clamping groove (9).