CN212571304U - Coaxial waveguide conversion device - Google Patents

Abstract

The utility model provides a coaxial waveguide conversion device, which can reduce the volume of a coaxial millimeter wave device after being converted into a waveguide interface, reduce the conversion cost from the coaxial interface to the waveguide interface and facilitate the large-scale production of enterprises; meanwhile, the waveguide H-face port and the waveguide E-face port are randomly converted by means of the orthogonal mounting holes in the coaxial waveguide conversion device, the waveguide H-face port and the waveguide E-face port are formed, the waveguide H-face port and the waveguide E-face port comprise a waveguide converter body, a blocking cover and guide pins, the waveguide converter body comprises a first shell and a second shell, the first shell and the second shell are cylindrical, the first shell and the second shell are concentric with each other, the diameter of the first shell is smaller than that of the second shell, a first mounting hole is formed in the first shell, the first mounting hole is orthogonal to the waveguide face, the guide holes are formed in the second shell, the guide pins are inserted into the guide holes, a first through hole is formed in the middle of the waveguide converter body, and the.

Description

Coaxial waveguide conversion device

Technical Field

The utility model relates to a communication equipment field particularly, relates to a coaxial waveguide conversion equipment.

Background

With the increasing of millimeter wave civil communication equipment, the interface forms of internal devices are not consistent. To ensure reliable interconnection between devices, the input and output ports of the devices often require a transition from a coaxial interface to a waveguide interface. A simple and low-cost coaxial waveguide conversion device is the focus of current research and development.

Two common implementations of coaxial waveguide conversion are available on the market. The method comprises the following steps that firstly, an orthogonal implementation mode is adopted, a coaxial probe vertically passes through the wide edge of a waveguide, and the matching of a full-waveguide frequency band from a coaxial interface to a waveguide port is realized by adjusting the distance from the probe to a short-circuit surface, the length and the loading of the probe and a tuning screw; and the other is a termination realization mode, the scheme achieves the matching of the full-wave guide frequency band from the coaxial interface to the waveguide port by the direct connection of the coaxial probe and the waveguide ridge and by the impedance transition of the stepped waveguide ridge.

In the orthogonal coaxial waveguide conversion in the prior art, a coaxial open-circuit probe excites a working main mode electric field of a waveguide, and the matching of a coaxial port and a waveguide port is realized by means of probe loading and the help of a tuning screw; in the conversion of the terminated coaxial waveguide, the coaxial probe is directly short-circuited with the stepped waveguide ridge to excite the working main mode magnetic field of the waveguide, so that the matching of a coaxial port and a waveguide port is realized. Therefore, the existing coaxial waveguide conversion has larger volume due to the coaxial connector; the interconnection between the coaxial shafts increases the structural length and the hardware cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a coaxial waveguide conversion device, which can reduce the volume of a coaxial millimeter wave device after being converted into a waveguide interface, reduce the conversion cost from the coaxial interface to the waveguide interface and facilitate the large-scale production of enterprises; meanwhile, the arbitrary conversion of the H-surface port and the E-surface port of the waveguide is realized by means of the orthogonal mounting hole on the coaxial waveguide conversion device.

The embodiment of the utility model is realized like this:

the utility model provides a coaxial waveguide conversion equipment, including the waveguide converter body, blanking cover and uide pin, the waveguide converter body includes first casing and second casing, first casing and second casing are cylindricly, first casing and second casing are with the center pin, the diameter of first casing is less than the diameter of second casing, be provided with first mounting hole on the first casing, first mounting hole and waveguide oral area quadrature, be provided with the guiding hole on the second casing, the uide pin inserts the guiding hole, the middle part of waveguide converter body is provided with first through-hole, the blanking cover assembly is in first through-hole.

In a preferred embodiment of the present invention, the first mounting holes are provided with 4 holes at equal intervals.

In a preferred embodiment of the present invention, the number of the guiding holes is 4.

In the preferred embodiment of the present invention, the guide pins are provided with 2 guide holes, and the insertion positions of the guide pins are opposite to each other.

In the preferred embodiment of the present invention, the middle portion of the cap is provided with an insulator connecting hole.

In a preferred embodiment of the present invention, the first housing and the second housing are integrally formed.

In a preferred embodiment of the present invention, the plug is in interference fit with the waveguide converter body.

In the preferred embodiment of the present invention, the insulator connecting hole is coated with a conductive adhesive when being connected to the device insulator.

The embodiment of the utility model provides a beneficial effect is: the coaxial waveguide conversion device in the utility model is provided with a waveguide converter body, a blanking cover and a guide pin, wherein the waveguide converter body consists of two cylinders (a first shell and a second shell), and the diameters of the cylinders are assembled to be matched with each other by tolerance; four first mounting holes on the first shell are orthogonal to the waveguide opening surface; by means of the orthogonal mounting hole on the coaxial waveguide conversion device, the arbitrary conversion of the H-surface port and the E-surface port of the waveguide is realized; the blanking cover is tightly pressed into the waveguide converter body through the tool and pressed into the standard flange guide pin, so that the volume of the coaxial millimeter wave device after the waveguide port is turned is effectively reduced, in addition, the use of redundant coaxial connectors is avoided, the conversion cost from the coaxial interface to the waveguide interface is reduced, and the large-scale production of enterprises is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an exploded schematic view of a coaxial waveguide conversion device according to an embodiment of the present invention;

fig. 2 is a schematic view of an assembly structure of a coaxial waveguide conversion device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a coaxial waveguide conversion device according to an embodiment of the present invention in use 1;

fig. 4 is a schematic diagram of a coaxial waveguide conversion device according to an embodiment of the present invention in use 2;

icon: 100-waveguide converter body; 200-blocking cover; 300-guide pins; 110-a first housing; 120-a second housing; 111-a first mounting hole; 121-a guide hole; 210-insulator connection hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

First embodiment

Referring to fig. 1 and 2, the present embodiment provides a coaxial waveguide conversion device, including a waveguide converter body 100, a blocking cover 200 and a guide pin 300, where the waveguide converter body 100 includes a first housing 110 and a second housing 120, the first housing 110 and the second housing 120 are both cylindrical, the first housing 110 and the second housing 120 share a central axis, a diameter of the first housing 110 is smaller than a diameter of the second housing 120, the first housing 110 is provided with a first mounting hole 111, the first mounting hole 111 is orthogonal to a waveguide port surface, the second housing 120 is provided with a guide hole 121, the guide pin 300 is inserted into the guide hole 121, a first through hole is provided in a middle portion of the waveguide converter body 100, and the blocking cover 200 is assembled in the first through hole.

More specifically, the first mounting holes 111 in the present embodiment are provided at equal intervals by 4; the number of the guide holes 121 is 4; the guide pins 300 are provided with 2 guide holes 121, and the guide pins 300 are inserted into the corresponding guide holes; the middle of the blocking cover 200 is provided with an insulator connecting hole 210.

The first case 110 and the second case 120 in the present embodiment are integrally formed; the plug 200 is in interference fit with the waveguide converter body; the insulator connection hole 210 is coated with a conductive paste when being connected to a device insulator.

This embodiment employs a simplified terminated coaxial waveguide transition structure with the coaxial connectors on the transition structure removed, which is shown schematically in fig. 3 and 4. The working principle is that firstly the detachable connector on the product is removed, the original radio frequency insulator on the device is utilized, a little conductive adhesive is coated on the top end of the radio frequency insulator, and the simplified end-connected coaxial waveguide conversion device is arranged on the product along the original connector mounting hole. And finally, baking by a standard procedure of curing the conductive adhesive to ensure that the central conductor of the insulator is reliably connected with the waveguide ridge. In addition, the polarization direction of the waveguide port can be adjusted at any time by using any set of mounting screws.

The processing schematic diagram of coaxial waveguide conversion is shown in fig. 1 and 2, the conversion structure is divided into two parts, namely a waveguide converter body 100 and a plug cover 200, the two parts of structural components are firstly finished according to the requirements of the drawing, especially attention is paid to the tolerance fit of the diameters of assembling cylinders of the two parts and the guarantee of the orthogonality of four mounting holes and the waveguide port surface; finally, after the workpieces are plated with gold respectively, the plug cover 200 is tightly press-fitted into the waveguide converter body 100 through a tooling, and a standard flange guide pin 300 is pressed in, and the shape of the final product is as shown in fig. 2.

According to the technical scheme provided by the embodiment, the volume of the coaxial millimeter wave device behind the rotary waveguide port is effectively reduced. In addition, the use of redundant coaxial connectors is avoided, so that the conversion cost from the coaxial interface to the waveguide interface is reduced, and the large-scale production of enterprises is facilitated; by means of the orthogonal mounting holes in the coaxial waveguide conversion device, the arbitrary conversion of the H-plane port and the E-plane port of the waveguide is realized.

To sum up, the coaxial waveguide conversion device of the present invention is provided with a waveguide converter body 100, a plug 200 and a guide pin 300, wherein the waveguide converter body 100 is composed of two cylinders (a first shell 110 and a second shell 120), and the diameters of the cylinders are assembled to match with each other with a tolerance; four first mounting holes 111 on the first housing 110 are orthogonal to the waveguide aperture plane; by means of the orthogonal mounting hole on the coaxial waveguide conversion device, the arbitrary conversion of the H-surface port and the E-surface port of the waveguide is realized; the plug cover 200 is tightly pressed into the waveguide converter body 100 through a tool and pressed into the standard flange guide pin 300, so that the volume of the coaxial millimeter wave device after being converted into the waveguide port surface is effectively reduced, in addition, the use of redundant coaxial connectors is avoided, the conversion cost from the coaxial interface to the waveguide interface is reduced, and the large-scale production of enterprises is facilitated.

This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It should be understood that the embodiments described in this specification can be implemented in many alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. It will be appreciated by persons skilled in the art that a plurality of features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments which are not explicitly illustrated or described. The described combination of features provides a representative embodiment for a typical application. However, various combinations and modifications of the features consistent with the teachings of the present invention may be used as desired for particular applications or implementations.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a coaxial waveguide conversion equipment, its characterized in that, includes waveguide converter body, blanking cover and uide pin, the waveguide converter body includes first casing and second casing, first casing with the second casing is cylindricly, first casing with the second casing is the same center axle, the diameter of first casing is less than the diameter of second casing, be provided with first mounting hole on the first casing, first mounting hole and waveguide oral area quadrature, be provided with the guiding hole on the second casing, the uide pin inserts the guiding hole, the middle part of waveguide converter body is provided with first through-hole, the blanking cover assembly is in the first through-hole.

2. The coaxial waveguide conversion device of claim 1, wherein the first mounting holes are provided at equal intervals of 4.

3. The coaxial waveguide conversion device of claim 1, wherein the guide holes are provided at equal intervals of 4.

4. The coaxial waveguide conversion device of claim 1, wherein the guide pins are provided with 2 pieces inserted into the guide holes in opposite directions.

5. The coaxial waveguide conversion device of claim 1, wherein an insulator connecting hole is provided in the middle of the cap.

6. The coaxial waveguide transition device of claim 1, wherein the first housing and the second housing are integrally formed.

7. The coaxial waveguide conversion device of claim 1, wherein the cap is an interference fit with the waveguide converter body.

8. The coaxial waveguide transition device of claim 5, wherein the insulator connection hole is coated with a conductive paste when being connected to the device insulator.

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