Lightweight loudspeaker body

Abstract

The light-weighted horn body is used for a ridge-added horn antenna, the horn body is a right quadrangular pyramid component with one big head and one small head, the horn body is welded by four side plates, the inner wall of the side plate is vertically connected with a ridge piece extending along the length direction of the side plate, the inner wall of the ridge piece is an arc surface, any ridge piece does not contact with the rest ridge pieces, and the plane where any ridge piece is located passes through the axial line of the horn body, the side plate and the ridge piece are made of non-metal material, a plurality of parallel and spaced holes are arranged on the ridge piece, the holes on all the ridge pieces are one-to-one corresponding, and a metal conductive layer is plated on the surface of the side plate, the surface of the ridge piece and the inner wall surface of the hole, the light-weighted horn body can realize light weight by the material of the side plate and the ridge piece and the cavity formed by the holes, can optimize the disturbance of the ridge piece to the field by the cavity formed by the holes, and can improve the capacitive loading of the ridge piece in the length direction of the ridge piece, so that the performance adjustment has more means, and the adjustment of the parameters such as the reflection coefficient and the isolation can be considered.

Description

Technical Field

[0001] This invention relates to the field of communication equipment technology, and specifically to a lightweight speaker body. Background Technology

[0002] The horn antenna is a widely used microwave antenna. Its advantages include simple structure, large power capacity, and convenient adjustment and use. It has a wide range of applications in military and civilian fields and is a common test antenna.

[0003] To broaden the usable bandwidth of horn antenna waveguides, most existing horn antennas are equipped with a central ridge. To ensure stable support for the ridge, the strength of the horn body also needs to be increased. This results in the weight of the ridged horn antenna being increased not only by the weight of the ridge itself but also by the additional weight brought about by the increased strength of the horn body, making the horn antenna heavy and inconvenient to transport. Furthermore, most of these ridged horn antennas adjust their performance by changing the shape of the ridge's curved surface, which is a single method and makes it difficult to adjust parameters such as reflection coefficient and isolation, thus having significant limitations. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lightweight speaker body that is lightweight, has multiple means of performance adjustment, and can take into account the adjustment of parameters such as reflection coefficient and isolation.

[0005] To achieve the above objectives, the product provided by this invention is a lightweight horn body for use in a ridged horn antenna. The horn body is a regular square pyramidal component with one end larger than the other. The horn body is welded together from four side plates. Ridges extending along the length of the side plates are vertically connected to the inner walls of the side plates. The inner walls of the ridges are curved surfaces. No two ridges are in contact with each other. The plane containing any ridge passes through the axis of the horn body. The side plates and the ridges are made of non-metallic materials. Multiple parallel and spaced holes are provided on the ridges. All the holes on the ridges are arranged in a one-to-one correspondence. The surfaces of the side plates, the ridges, and the inner walls of the holes are plated with a conductive metal layer. The cavities formed by the holes are used to reduce the weight of the ridges and to adjust the reflection coefficient and isolation.

[0006] Preferably, the side plate is made of PCB, and the spine is made of any one of PPS, PPO, PEI, and LCP.

[0007] Preferably, the hole extends along the thickness direction of the ridge plate in which the hole is located.

[0008] More preferably, the hole is a through hole.

[0009] More preferably, the inner diameter of the hole is 1.1-1.3 times the thickness of the ridge plate.

[0010] More preferably, the spacing between adjacent holes on any of the ridge plates is equal.

[0011] More preferably, the centerlines of all the holes on any of the ridge pieces are located in the same plane, which is parallel to the inner wall of the side plate on which the ridge piece is located.

[0012] Preferably, the side plate has an uneven toothed structure on its side edge, and during welding, adjacent side plates are fixed by splicing and interlocking the toothed structure.

[0013] Preferably, the ridge plate is connected to the inner wall of the side plate by bolts, the bolts being inserted through a through hole in the side plate and tightened into a threaded blind hole on the ridge plate.

[0014] More preferably, one end of the ridge plate extends outward from the small end of the horn body for connecting to the base, and the other end of the ridge plate is located inside the large end of the horn body.

[0015] Due to the application of the above technical solution, the lightweight speaker body provided by the present invention has the following advantages compared with the prior art:

[0016] The lightweight horn body provided by this invention is used for a ridged horn antenna. The horn body is a regular square pyramidal component with one end larger than the other. The horn body is welded together from four side plates. The inner walls of the side plates are vertically connected to ridges extending along the length of the side plates. The inner walls of the ridges are curved surfaces. No ridge contacts any other ridge. The plane of any ridge passes through the axis of the horn body. By making the side plates and ridges both non-metallic materials, and setting multiple parallel and spaced holes on the ridges, the holes on all ridges are set one-to-one. A metallic conductive layer is plated on the surface of the side plates, the surface of the ridges, and the inner wall surface of the holes. This not only achieves lightweighting by utilizing the materials of the side plates and ridges and the cavities formed by the holes, but also optimizes the perturbation of the field by the ridges by utilizing the cavities formed by the holes. It also improves the capacitive loading of the ridges along their length, making performance adjustment more versatile and able to take into account the adjustment of parameters such as reflection coefficient and isolation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view schematic diagram of a preferred embodiment of the present invention, with some parts shown in perspective.

[0019] Figure 2 yes Figure 1 The diagram is shown on the right, with some parts rendered in perspective.

[0020] Figure 3 yes Figure 1 A three-dimensional schematic diagram, with perspective shown in some parts.

[0021] Figure 4 , Figure 5 yes Figure 1 Front view of the side panel of the horn-shaped body.

[0022] Figure 6 This is a performance diagram of the reflectance coefficient of existing technology (without perforations in the spine).

[0023] Figure 7 This is a diagram showing the isolation performance of existing technology (without perforations in the spine).

[0024] Figure 8 This is a reflection coefficient performance diagram of a preferred embodiment of the present invention.

[0025] Figure 9 This is an isolation performance diagram of a preferred embodiment of the present invention.

[0026] Among them: 10. Base; 20. Horn body; 21. Side plate; 211. Toothed structure; 212. Through hole; 22. Ridge plate; 221. Hole; 222. Threaded blind hole; 23. Curved surface. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 5As shown, the lightweight horn body provided by this invention is used for a ridged horn antenna. The horn body 20 is a regular square pyramidal component with one end larger than the other. The horn body 20 is welded together from four side plates 21. The inner wall of the side plates 21 is vertically connected to a ridge plate 22 extending along the length of the side plate 21. The inner wall of the ridge plate 22 is an arc surface 23. No single ridge plate 22 contacts the other three ridge plates 22. The plane containing any single ridge plate 22 passes through the axis of the horn body 20. The side plates 21 and the ridge plates 22 are both made of non-metallic materials. The ridge plate 22 has... Multiple parallel and spaced holes 221 are provided. The holes 221 on the four ridge plates 22 are arranged one-to-one. The one-to-one correspondence means that the number of holes 221 on the four ridge plates 22 is equal and the arrangement position is the same. The axis lines of any four corresponding holes 221 on the four ridge plates 22 are coplanar. The surfaces of the four side plates 21, the surfaces of the four ridge plates 22, and the inner wall surfaces of all holes 221 are plated with a metal conductive layer. The cavity formed by the holes 221 is used to reduce the weight of the ridge plate 22 and to adjust performance parameters such as reflection coefficient and isolation.

[0029] The advantage of this design is that it can achieve lightweighting by utilizing the materials of the side plates and ridge plates and the presence of holes, and it can also optimize the perturbation of the field by the ridge plates by utilizing the cavities formed by the holes, improve the capacitive loading of the ridge plates in the length direction of the ridge plates, and make performance adjustment more versatile, taking into account the adjustment of parameters such as reflection coefficient and isolation.

[0030] The side plate 21 is made of PCB, which gives it high strength and improves its support effect. The ridge plate 22 is made of any one of PPS, PPO, PEI, and LCP. In this embodiment, PPS is chosen as the material for the ridge plate 22 because it is inexpensive, readily available, and easy to process.

[0031] In this embodiment, the hole 221 extends along the thickness direction of the ridge 22 where the hole 221 is located and penetrates the ridge 22 to form a through hole. The inner diameter of the hole 221 is 1.1-1.3 times the thickness of the ridge 22. The spacing between adjacent holes 221 on any ridge 22 is equal, and the centerlines of all holes 221 on any ridge 22 are located in the same plane, which is parallel to the inner wall of the side plate 21 where the ridge 22 is located. One end of the ridge 22 extends outward from the small end of the horn body 20 for... The other end of the ridge plate 22 is located inside the large end of the speaker body 20, which is not easily damaged. The ridge plate 22 is connected to the inner wall of the side plate 21 by bolts. The bolts are inserted through the through hole 212 on the side plate 21 and tightened into the threaded blind hole 222 on the ridge plate 22. The threaded blind hole 222 and the hole 221 are spaced apart. The side of the side plate 21 is provided with an uneven toothed structure 211. During welding, adjacent side plates 21 are fixed by splicing and interlocking the toothed structure 211.

[0032] The advantage of this design is that it can enhance the strength of the speaker body while ensuring the weight reduction as much as possible, facilitate welding and alignment, and make it easy to disassemble the ridge plate.

[0033] The performance parameters of this embodiment are compared with those of the prior art. Figures 6 to 9 As shown, when the same waveform is input to both ports, this embodiment, compared to the prior art without openings, has a higher reflection coefficient ( ). Figure 6 , Figure 8 The vertical axis (Y-axis) has decreased significantly, and the isolation ( Figure 7 , Figure 9 The absolute value of the ordinate has been significantly improved, especially the number of intervals with isolation less than -40dB has increased significantly.

[0034] The table below shows the performance simulation of the ridged horn antenna fabricated using this embodiment.

[0035]

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0037] The above are merely specific embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A light-weight horn body for a ridged horn antenna, the horn body being a right quadrangular pyramid with a large head and a small head, and being formed by welding four side plates, inner walls of the side plates being vertically connected with ridges extending along the length direction of the side plates, inner walls of the ridges being arc surfaces, any ridge not contacting with the rest of the ridges, and any plane where the ridges are located passing through the axial line of the horn body, characterized in that: the side plates and the ridges are made of non-metallic materials, a plurality of parallel and spaced holes are arranged on the ridges, the holes are through holes extending along the thickness direction of the ridges, the inner diameter of the holes is 1.1-1.3 times the thickness of the ridges, the holes on all the ridges are arranged one-to-one, the axial lines of all the holes on any ridge are located on the same plane, the plane is parallel to the inner wall of the side plate where the ridge is located, the surfaces of the side plates, the surfaces of the ridges and the inner wall surfaces of the holes are plated with metal conductive layers, the cavities formed by the holes can not only reduce the weight of the ridges, but also adjust the reflection coefficient and isolation, so that the working frequency of the horn body is maintained at 1.5-6.5 GHz.

2. The light-weight horn body according to claim 1, characterized in that: the material of the side plates is PCB, and the material of the ridges is any one of PPS, PPO, PEI and LCP.

3. The light-weight horn body according to claim 1, characterized in that: the distance between adjacent holes on any ridge is equal.

4. The light-weight horn body according to claim 1, characterized in that: the side edges of the side plates are provided with uneven tooth-like structures, and when welding, adjacent side plates are fixed by the splicing and interlocking of the tooth-like structures.

5. The light-weight horn body according to claim 1, characterized in that: the inner walls of the ridges and the side plates are connected by bolts, the bolts pass through the through holes on the side plates and are screwed into the threaded blind holes on the ridges.

6. The light-weight horn body according to any one of claims 1-5, characterized in that: one end of the ridge extends outward from the small head end of the horn body and is used for connecting a base, and the other end of the ridge is located in the large head end of the horn body. ​ ​ ​ ​ ​ ​

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