Composite antenna housing

Abstract

The utility model relates to the technical field of radomes, in particular to a composite radome, which comprises a radome body formed by enclosing plates and sutures sewed at the head and tail ends of the plates, a plurality of seam holes distributed at intervals are formed in the head and tail ends of the plates, and the sutures are sewed at the head and tail ends of the plates in a crossed manner around the seam holes. The plate adopts the woven mesh cloth layer, the fiber reinforced layer and the prepreg resin layer which are sequentially attached from inside to outside, so that the strength of the cover body is guaranteed, the thickness and weight of the cover body are reduced, the injection molding and mold opening cost is saved, consumables are reduced, the overall density of the plate is low, the wave-transparent effect of the antenna cover is improved, and the dielectric loss is improved. The composite radome replaces a traditional radome to be applied to a base station antenna, and electrical performance can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna covers, in particular to a composite antenna cover. Background Art

[0002] A radome is a structure that protects the antenna system from external environmental influences. It isolates the antenna from the outside world, primarily protecting it from harsh environments like wind, sun, extreme cold, and extreme heat, ensuring stable operation in a variety of environments. The radome also provides an interface that must maintain structural and aerodynamic characteristics while minimizing impact on the antenna's electrical characteristics.

[0003] Traditional radomes, such as rigid radomes, are usually made of thicker materials to increase their structural strength and durability, and are mostly formed by injection molding. The injection molding mold opening cost is high, the consumables are large, and the radome has a large external dimension. To ensure the high strength of the radome, the injection molding wall thickness requirement is greater. The resulting radome is heavy and has a high density, which is not conducive to the radome's wave transmission effect and improvement of dielectric loss, and has an adverse effect on electrical performance. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a composite antenna cover.

[0005] The purpose of the present utility model is achieved through the following technical solution: a composite antenna cover, including a cover body formed by a plate, and sutures sewn to the front and rear ends of the plate, wherein the front and rear ends of the plate are provided with a plurality of spaced-apart slits, and the sutures are cross-stitched around the slits to the front and rear ends of the plate, and the plate includes a woven mesh layer, a fiber reinforcement layer and a pre-impregnated resin layer sequentially bonded from the inside to the outside.

[0006] Preferably, the cross section of the cover body is a rounded rectangle or a circle.

[0007] Preferably, the thickness of the plate is 0.3-0.8 mm.

[0008] Preferably, the thickness of the mesh cloth layer is 0.01-0.05 mm, and the average thickness of the fiber reinforcement layer is 0.05-0.2 mm.

[0009] Preferably, the woven mesh layer is a polyester fiber mesh layer or a nylon mesh layer; the fiber reinforcement layer is a chopped glass fiber reinforcement layer; and the pre-impregnated resin layer is an epoxy resin layer.

[0010] Preferably, the composite antenna cover further comprises a plurality of limit blocks which are spaced apart and adhered to the inner side surface of the cover body, the inner wall of the cover body abuts against the antenna stand, and the limit blocks are fixedly connected to the antenna stand.

[0011] Preferably, the antenna frame includes a connecting rod and a plurality of beams distributed at intervals and fixedly connected to the connecting rod, the limit block is provided with a clip groove engaged with the connecting rod, and the end face of the limit block abuts against the side of the beam.

[0012] The beneficial effects of the present invention are as follows: the composite antenna cover of the present invention adopts a cover body formed by a plate and stitches sewn to the ends of the plate, a plurality of spaced-apart slits are opened at both ends of the plate, and the stitches are cross-stitched around the slits at the ends of the plate, and the plate adopts a woven mesh cloth layer, a fiber reinforcement layer and a pre-impregnated resin layer that are sequentially bonded from the inside to the outside, which is beneficial to ensuring the strength of the cover body, and can reduce the thickness of the cover body and reduce the weight, eliminating the cost of injection molding and reducing consumables, and the overall density of the plate is low, which is beneficial to the wave transmission effect of the antenna cover and improving the dielectric loss. The composite antenna cover replaces the traditional antenna cover and is used in the base station antenna, which is beneficial to improving the electrical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0015] Figure 3 It is a cross-sectional view of the plate of the utility model;

[0016] The accompanying drawings are marked as follows: 1. cover body; 2. stitching line; 3. stitching hole; 4. mesh cloth layer; 5. fiber reinforcement layer; 6. pre-impregnated resin layer; 7. limit block; 8. antenna frame; 81. connecting rod; 82. crossbeam. DETAILED DESCRIPTION

[0017] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0018] like Figure 1-3 As shown, a composite antenna cover includes a cover body 1 formed by a plate, and stitches 2 sewn to the ends of the plate, both ends of the plate are provided with a plurality of spaced-apart slits 3, and the stitches 2 are cross-stitched around the slits 3 to the ends of the plate. The plate includes a woven mesh layer 4, a fiber reinforcement layer 5 and a pre-impregnated resin layer 6 sequentially bonded from the inside to the outside.

[0019] The composite antenna cover adopts a cover body 1 surrounded by a plate and a stitch 2 sewn to the ends of the plate. A plurality of spaced-apart slits 3 are provided at both ends of the plate. The stitches 2 are cross-stitched around the slits 3 and are sewn to the ends of the plate. The plate adopts a woven mesh layer 4, a fiber reinforcement layer 5 and a pre-impregnated resin layer 6 that are sequentially bonded from the inside to the outside. This is beneficial to ensuring the strength of the cover body 1, and can reduce the thickness and weight of the cover body 1, eliminating the cost of injection molding and reducing consumables. The overall density of the plate is low, which is beneficial to the wave transmission effect of the antenna cover and improving the dielectric loss. The composite antenna cover replaces the traditional antenna cover and is used in base station antennas, which is beneficial to improving electrical performance.

[0020] Furthermore, the cross section of the cover body 1 is a rounded rectangular or circular shape, which helps to reduce wind resistance and thus reduce the impact of wind on the antenna; preferably, the cross section of the cover body 1 is a rounded rectangular shape.

[0021] Furthermore, the plate has a thickness of 0.3-0.8 mm; furthermore, the mesh layer 4 has a thickness of 0.01-0.05 mm, and the fiber-reinforced layer 5 has an average thickness of 0.05-0.2 mm. To ensure the strength of the cover 1, the cover 1 of the present application is thinner and simpler in structure than traditional injection-molded radomes, which is more conducive to the radome's wave transmission effect and improved dielectric loss. Preferably, the plate has a thickness of 0.5 mm, the mesh layer 4 has a thickness of 0.02 mm, and the fiber-reinforced layer 5 has an average thickness of 0.1 mm.

[0022] Furthermore, the mesh layer 4 is a polyester fiber mesh layer or a nylon mesh layer; the fiber reinforcement layer 5 is a chopped glass fiber reinforcement layer 5; and the pre-impregnated resin layer 6 is an epoxy resin layer. Preferably, the mesh layer 4 is a polyester fiber mesh layer.

[0023] Furthermore, the composite radome includes a plurality of spaced-apart stoppers 7 bonded to the inner side of the radome 1. The inner wall of the radome 1 abuts an antenna mount 8, and the spaced-apart stoppers 7 are fixedly connected to the antenna mount 8. Furthermore, the antenna mount 8 includes a connecting rod 81 and a plurality of spaced-apart crossbeams 82 fixedly connected to the connecting rod 81. The spaced-apart stoppers 7 are provided with clip grooves (not shown) that engage with the connecting rod 81, and the end faces of the spaced-apart stoppers 7 abut the sides of the crossbeams 82. The inner wall of the radome 1 abuts the antenna mount 8, and the spaced-apart stoppers 7 further secure the radome 1 to the antenna mount 8, improving the stability of the connection between the radome 1 and the antenna mount 8.

[0024] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the scope of protection of the present invention.

Claims

1. A composite radome, characterized in that: It includes a cover body formed by a plate and stitches sewn to the ends of the plate. Both ends of the plate are provided with a plurality of spaced-apart stitch holes. The stitches are cross-stitched around the stitch holes to the ends of the plate. The plate includes a woven mesh layer, a fiber reinforcement layer and a pre-impregnated resin layer sequentially bonded from the inside to the outside.

2. The composite radome according to claim 1, characterized in that: The cross section of the cover body is a rounded rectangle or a circle.

3. The composite radome according to claim 1, characterized in that: The thickness of the plate is 0.3-0.8 mm.

4. The composite radome according to claim 3, characterized in that: The thickness of the mesh cloth layer is 0.01-0.05 mm, and the average thickness of the fiber reinforcement layer is 0.05-0.2 mm.

5. The composite radome according to claim 1, characterized in that: The woven mesh layer is a polyester fiber mesh layer or a nylon mesh layer; the fiber reinforcement layer is a chopped glass fiber reinforcement layer; and the pre-impregnated resin layer is an epoxy resin layer.

6. The composite radome according to claim 1, characterized in that: The composite antenna cover further comprises a plurality of spaced-apart limiting blocks bonded to the inner side of the cover body. The inner wall of the cover body abuts against the antenna frame, and the limiting blocks are fixedly connected to the antenna frame.

7. The composite radome according to claim 6, characterized in that: The antenna frame includes a connecting rod and a plurality of crossbeams that are spaced apart and fixedly connected to the connecting rod. The limit block is provided with a clamping groove that is engaged with the connecting rod, and the end face of the limit block abuts against the side face of the crossbeam.

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