阅读说明：本技术 一种波导同轴转换系统 (Waveguide coaxial conversion system ) 是由 田效敏 郭建立 叶萍 吴北苹 于 2021-08-27 设计创作，主要内容包括：本发明提出了一种波导同轴转换系统,包括同轴接头、同轴盖、波导壳体和调配柱,同轴接头设在同轴盖上,同轴盖底部设有卡勾和卡条,波导壳体的侧面设有与卡勾配合的卡槽,波导壳体的顶部设有与卡条配合的卡条槽,波导体内侧面设有多级台阶,正对于腔体中心轴的台阶设有台阶通孔,从靠近波导壳体底部的台阶通孔的直径到靠近波导壳体顶部的一段长度的台阶通孔直径逐渐减小,形成圆台通孔,调配柱的一端穿过同轴接头的中心并固定连接,调配柱的另一端穿过同轴盖的中心和台阶通孔,调配柱的另一端设有与圆台通孔配合的圆台；本发明可以提高波导同轴转换的阻抗匹配,匹配性能高,同时也能达到增加带宽,降低阻抗效果。(The invention provides a waveguide coaxial conversion system, which comprises a coaxial connector, a coaxial cover, a waveguide shell and a deployment column, wherein the coaxial connector is arranged on the coaxial cover, the bottom of the coaxial cover is provided with a clamping hook and a clamping strip, the side surface of the waveguide shell is provided with a clamping groove matched with the clamping hook, the top of the waveguide shell is provided with a clamping strip groove matched with the clamping strip, the inner side surface of the waveguide shell is provided with a plurality of steps, the step right opposite to the central shaft of a cavity is provided with a step through hole, the diameter of the step through hole close to the bottom of the waveguide shell is gradually reduced to the diameter of the step through hole close to the top of the waveguide shell to form a circular truncated cone through hole, one end of the deployment column penetrates through the center of the coaxial connector and is fixedly connected, the other end of the deployment column penetrates through the center of the coaxial cover and the step through hole, and the other end of the deployment column is provided with a circular truncated cone matched with the circular truncated cone through hole; the invention can improve the impedance matching of the coaxial conversion of the waveguide, has high matching performance, and can achieve the effects of increasing the bandwidth and reducing the impedance.)

1. A waveguide coaxial switching system, characterized by: the waveguide structure comprises a coaxial connector, a coaxial cover, a waveguide shell and a deployment column, wherein the coaxial connector is arranged on the coaxial cover, the bottom of the coaxial cover is provided with a clamping hook and a clamping strip, the side surface of the waveguide shell is provided with a clamping groove matched with the clamping hook, the top of the waveguide shell is provided with a clamping strip groove matched with the clamping strip, the inner side surface of the waveguide body is provided with a plurality of steps, a step through hole is arranged on the step right opposite to the central axis of a cavity, the diameter of the step through hole close to the bottom of the waveguide shell is gradually reduced to the diameter of the step through hole close to one section of the top of the waveguide shell to form a circular truncated cone through hole, one end of the deployment column penetrates through the center of the coaxial connector and is fixedly connected, the other end of the deployment column penetrates through the center of the coaxial cover and the step through hole, and the other end of the deployment column is provided with a circular truncated cone matched with the circular truncated cone through hole, and a gap is reserved between the other end of the blending column and the inner wall of the step through hole and the inner wall of the circular truncated cone through hole.

2. A waveguide coaxial switching system according to claim 1, wherein: the waveguide structure is characterized by further comprising a dielectric plate, wherein the dielectric plate is arranged in the waveguide shell between the step and the coaxial cover, and the allocation column penetrates through the dielectric plate.

3. A waveguide coaxial switching system according to claim 1, wherein: the coaxial cover is characterized in that a circular groove is formed in the center of the coaxial cover, the diameter of the circular groove is gradually reduced from the top end direction of the coaxial cover to the bottom end direction of the coaxial cover, the blending column penetrates through the circular groove, and filtering fillers are arranged in the circular groove.

4. A waveguide coaxial switching system according to claim 1, wherein: and a flexible conductive material is arranged at the bottom of the clamping strip groove.

5. A waveguide coaxial switching system according to claim 1, wherein: the four clamping hooks are respectively distributed at the bottom of the coaxial cover, and the four clamping grooves are formed in two side faces of the waveguide shell.

6. A waveguide coaxial switching system according to claim 1, wherein: the two clamping strips are distributed at the bottom of the coaxial cover, and the two clamping strip grooves are distributed at the top of the waveguide shell.

Technical Field

The invention relates to the technical field of microwave communication, in particular to a waveguide coaxial conversion system.

Background

In the fields of modern satellite communication and radio high-tech, the development of electronic communication systems and the like is rapidly advanced, and various passive devices such as waveguides, coaxiality, waveguide coaxial switching and the like play a vital role in the fields of microwaves and millimeter waves; the waveguide coaxial converter is a converter from a waveguide (TE mode) to a coaxial (TEM mode), and a common method of the converter is to change a joint; the outer conductor of the coaxial line is connected with the wide wall of the rectangular waveguide, the extension part (probe) of the inner conductor is inserted into the waveguide to form a small radiation antenna, TE mode electromagnetic waves are excited in the waveguide, in the high-speed development of the aerospace technology, the existing waveguide coaxial converter cannot meet the requirement of high-precision equipment on sealing performance, the signal leakage problem is easy to generate, meanwhile, along with the rapid development of the communication technology, the requirement on the impedance matching performance of the waveguide coaxial converter is higher and higher, and the problem that how to improve the conversion efficiency is urgently needed to be solved is solved.

Disclosure of Invention

The object of the present invention is to solve at least one of the technical drawbacks.

To this end, an object of the present invention is to provide a waveguide coaxial switching system, comprising a coaxial connector, a coaxial cover, the waveguide comprises a waveguide shell and a blending column, wherein a coaxial connector is arranged on a coaxial cover, a clamping hook and a clamping strip are arranged at the bottom of the coaxial cover, a clamping groove matched with the clamping hook is formed in the side face of the waveguide shell, a clamping strip groove matched with the clamping strip is formed in the top of the waveguide shell, a plurality of steps are arranged on the inner side face of the waveguide body, a step through hole is formed right opposite to the step of the central shaft of the cavity, the diameter of the step through hole close to the bottom of the waveguide shell is gradually reduced to the diameter of the step through hole close to one section of the length of the top of the waveguide shell, a circular truncated cone through hole is formed, one end of the blending column penetrates through the center of the coaxial connector and is fixedly connected with the same, the other end of the blending column penetrates through the center of the coaxial cover and the step through hole, a circular truncated cone matched with the circular truncated cone through hole is arranged at the other end of the blending column, and a gap is reserved between the inner wall of the step through hole and the inner wall of the circular truncated cone through hole.

Preferably, the waveguide further comprises a dielectric plate, the dielectric plate is arranged in the waveguide shell between the step and the coaxial cover, and the deployment column penetrates through the dielectric plate.

In any of the above schemes, preferably, a circular groove is arranged at the center of the coaxial cover, the diameter of the circular groove is gradually reduced from the top end direction of the coaxial cover to the bottom end direction of the coaxial cover, the blending column penetrates through the circular groove, and the circular groove is internally provided with a filtering filler.

In any of the above solutions, it is preferable that the bottom of the card slot is provided with a flexible conductive material.

In any of the above schemes, preferably, four clamping hooks are respectively distributed at the bottom of the coaxial cover, and four clamping grooves are arranged at two side surfaces of the waveguide shell.

In any of the above solutions, it is preferable that the two card strips are distributed at the bottom of the coaxial cover, and the two card strip slots are distributed at the top of the waveguide housing.

Compared with the prior art, the invention has the advantages and beneficial effects that:

1. according to the waveguide coaxial conversion system, the step through hole is formed in the step right opposite to the central shaft of the cavity to form the circular truncated cone through hole, the circular truncated cone matched with the circular truncated cone through hole is arranged at the other end of the allocation column, and through the arrangement of the structure, the impedance matching of waveguide coaxial conversion can be improved, the matching performance is high, and meanwhile, the bandwidth can be increased, the impedance effect is reduced, and the matching performance is improved.

2. According to the waveguide coaxial conversion system, the bottom of the coaxial cover is provided with the clamping hook and the clamping strip, the side face of the waveguide shell is provided with the clamping groove matched with the clamping hook, the top of the waveguide shell is provided with the clamping strip groove matched with the clamping strip, through the structure matched with the clamping hook and the clamping groove, screws do not need to be disassembled, the waveguide coaxial conversion system can be easily assembled, through the structure matched with the clamping strip and the clamping groove, the clamping strip can fix the coaxial cover, lateral movement is prevented, the structure is more stable, and more cost is saved.

3. The waveguide coaxial conversion system also comprises a dielectric plate, and the dielectric plate can improve the transmission performance of waveguide coaxial conversion.

4. According to the waveguide coaxial conversion system, the circular groove is internally provided with the inverted circular truncated cone, and the circular groove is filled with the filter, so that external pollution can be filtered, and the waveguide shell is prevented from being polluted to cause the reduction of transmission performance; the flexible conductive medium is added in the clamping strip groove, so that signal leakage can be reduced, and transmission loss is reduced.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view of a waveguide coaxial transition system in accordance with the present invention;

FIG. 2 is a top view of a waveguide coaxial conversion system waveguide housing according to the present invention;

fig. 3 is a schematic structural view of a coaxial cover of a waveguide coaxial switching system according to the present invention.

Wherein the reference numbers:

1-preparing a column; 2-a waveguide housing; 3-coaxial cover; 4-a dielectric plate; 5-trip; 6-clamping strips; 7-a clamping groove; 8-a card strip groove; 9-step; 10-a circular truncated cone; 11-a circular truncated cone through hole; 12-a circular groove; 13-filtering the filling; 14-a coaxial joint; 15-flexible conductive material.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, 2 and 3, the waveguide coaxial conversion system according to the present invention comprises a coaxial connector 14, a coaxial cover 3, a waveguide housing 2 and a deployment post 1, wherein the coaxial connector 14 is fixed above the coaxial cover 3, the bottom of the coaxial cover 3 is provided with a hook 5 and a strip 6, the inner side of the waveguide housing 2 is a hollow structure, the side of the waveguide housing 2 is provided with a slot 7 matched with the hook 5, the top of the waveguide housing 2 is provided with a strip slot 8 matched with the strip 6, the inner side of the waveguide is provided with a plurality of steps 9, the step 9 opposite to the central axis of the cavity is provided with a step through hole, the diameter of the step through hole near the bottom of the waveguide housing 2 is gradually reduced to the diameter of the step through hole near a section of the top of the waveguide housing 2 to form a circular truncated cone through hole 11, one end of the deployment post 1 passes through the center of the coaxial connector 14 and is fixedly connected, the other end of the deployment post 1 passes through the center and the step through hole of the coaxial cover 3, the other end of the mixing column 1 is provided with a circular truncated cone 10 matched with the circular truncated cone through hole 11, and a gap is reserved between the other end of the mixing column 1 and the inner wall of the step through hole and the inner wall 11 of the circular truncated cone through hole.

The embodiment of the invention is provided with a step through hole right opposite to the step 9 of the central shaft of the cavity to form a circular truncated cone through hole 11, and the other end of the deployment column 1 is provided with a circular truncated cone 10 matched with the circular truncated cone through hole 11.

Further, the waveguide structure further comprises a dielectric plate 4, wherein the dielectric plate 4 is arranged in the waveguide shell 2 between the step 9 and the coaxial cover 3, the dielectric plate 4 is a rectangular plate, two ends of the dielectric plate 4 are respectively abutted against the inner side wall of the waveguide shell 2, and the allocation column 1 penetrates through the dielectric plate 4; the dielectric plate 4 is added, so that the transmission performance of waveguide coaxial conversion can be improved, the transmission loss is reduced, and the transmission efficiency is higher.

Further, a circular groove 12 is arranged at the center of the coaxial cover 3, the diameter of the circular groove 12 is gradually reduced from the top end direction of the coaxial cover 3 to the bottom end direction of the coaxial cover 3, the mixing column 1 penetrates through the circular groove 12, and a filtering filler 13 is arranged in the circular groove 12; optionally, the filter filler 13 is nylon, polytetrafluoroethylene material, glass fiber filter material, or the like.

Furthermore, the bottom of the card strip groove 8 is filled with the flexible conductive material 15, and the flexible conductive material 15 is filled, so that the gap between the card strip 6 and the card strip groove 8 can be reduced, the signal leakage loss is reduced, and the matching performance is improved.

Further, the four clamping hooks 5 are respectively distributed at the bottom of the coaxial cover 3, the four clamping grooves 7 are formed in the two side faces of the waveguide shell 2, the clamping buckles are matched with the clamping grooves 7, and through the arrangement of the structure, the assembly is more convenient, and screws do not need to be disassembled.

Further, card strip 6 is two, distributes in the bottom of coaxial lid 3, and card strip groove 8 is two, distributes at the top of waveguide casing 2, and card strip 6 cooperatees with card strip groove 8, can prevent the side of coaxial lid 3 through the setting of above structure and move, makes coaxial lid 3 and waveguide casing 2 cooperate more firm.

The embodiment of the invention has the following uses: connect coaxial end through coaxial joint 14, the waveguide end is connected to rethread waveguide casing 2 and is used, and during the assembly, only need with coaxial lid 3 with waveguide casing 2 lock can, simple convenient.

The embodiment of the invention has the following uses: the coaxial connector is connected with the coaxial end, and the waveguide shell is connected with the waveguide end for use, so that the coaxial cover and the waveguide shell are buckled together simply and conveniently during assembly.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.