CN102664308A

CN102664308A - Antenna protective cover

Info

Publication number: CN102664308A
Application number: CN2012101246103A
Authority: CN
Inventors: 徐朝勇
Original assignee: CLP MICROWAVE COMMUNICATION (SHANGHAI) CO LTD
Current assignee: Division of microwave communication (Shanghai) Limited by Share Ltd
Priority date: 2012-04-25
Filing date: 2012-04-25
Publication date: 2012-09-12
Anticipated expiration: 2032-04-25
Also published as: CN102664308B

Abstract

The invention provides an antenna protective cover which is used for protecting a slotted waveguide tube in a slotted waveguide antenna. The antenna protective cover comprises a cover body portion and two side end portions, wherein the cover body portion is covered above the slotted waveguide tube, the two side end portions extend to cover the slotted waveguide tube, and the cover body portion and the two side end portions of the protective cover are formed into a whole and made of resin mixed materials and glass fiber. The antenna protective cover has a wave transmission performance and is light, high in strength and toughness, anti-aging, long in service life, waterproof, dustproof, abrasion resistant, trample-protecting and capable of guaranteeing the normal operation of a communication system, the transmission performance of the slotted waveguide antenna and the safe operation of track traffic and other communication systems.

Description

Antenna shield

Technical field

The present invention relates to the protective cover of the antenna that a kind of crack waveguide that is used for the crack radiating guide protects, particularly relate to a kind of antenna shield of the crack radiating guide in the track traffic communications field.

Background technology

As everyone knows, the crack radiating guide structurally, by the very bright and clean metal tube of a kind of hollow, inwall (circular or square etc.) or in cover the pipeline of metal, its surface has through processing that the slit is made.In order to prevent that rainwater, dust etc. to the hidden danger that the crack radiating guide corrodes, generally all adopting materials such as adhesive tape, Polypropylence Sheet to do simple and easy protection.When but if the crack radiating guide is to use in open-air work such as track traffic; Just must consider to do waterproof and dustproof, anti-wear, safeguard procedures such as prevent trampling; Have intensity height, light weight, corrosion-resistant, anti-aging simultaneously; Characteristics such as easy for installation, cheap, practical are so that can guarantee the normal operation of communication system.

Summary of the invention

The objective of the invention is to overcome the disappearance and the deficiency that exist in the above-mentioned prior art, propose a kind of have waterproof and dustproof, anti-wear, the anti-crack radiating guide protective cover of function such as trampling.

Antenna shield provided by the invention is by comprising the cover body part that covers waveguide top, said crack and extending two side parts that cover the crack waveguide; Wherein, the cover body of antenna shield part and two side end branches form as one, and all are to be processed by resin batch mixing and glass fiber.

Further, the cover body of antenna shield part and two side parts all have the performance that can pass through ripple.

Further, the cover body of antenna shield part can be curved, also can be other shapes.

Further, the length direction that also is provided with at least one said crack, edge waveguide with said crack waveguide facing surfaces of cover body part forms and to the reinforcement of described crack waveguide surface protrusion.

Further, the resin batch mixing accounts for 45% in total amount, and glass fiber accounts for 55% in total amount.

Further, the resin batch mixing is by adjacent benzene resin, the compound material that adds, and curing agent, pigment paste, UV resistant agent are formed, and wherein, the content of adjacent benzene resin is 90%, and the compound content that adds material is 5%, and the content of curing agent, pigment paste, UV resistant agent is 5%.

Further, glass fiber is made up of non-alkali yarn and alkali-free felt, and the content of non-alkali yarn is 80%, and the content of alkali-free felt is 20%.

The invention effect

In sum, antenna shield provided by the invention is because have the cover body part that covers radiating guide top, said crack and extend two side parts that cover the crack radiating guide; Cover body part and two side end branches form as one simultaneously; All be to process by resin batch mixing and glass fiber; Therefore the waterproof and dustproof of existing crack radiating guide, anti-wear, anti-problem such as trample have been solved; Satisfied the transmission performance of crack radiating guide, guaranteed the normal operation of train-ground communication RF system, thereby can guarantee safe operation like track traffic and other communication systems.

Description of drawings

Fig. 1 is the structural representation of the crack radiating guide protective cover in the embodiment of the present invention;

Fig. 2 is the structural representation of the reinforcement of the crack radiating guide protective cover in the embodiment of the present invention;

Fig. 3 is the crack radiating guide protective cover user mode sketch map in the embodiment of the present invention;

Fig. 4 is the crack radiating guide protective cover user mode sketch map in the embodiment of the present invention;

Fig. 5 is the end view of the crack radiating guide protective cover user mode in the embodiment of the present invention.

Embodiment

Specify the crack radiating guide protective cover that relates to below in conjunction with accompanying drawing and embodiment, but protection scope of the present invention is not limited to following execution mode.

Fig. 1 is the structural representation of the crack radiating guide protective cover in the embodiment of the present invention.As shown in Figure 1, this antenna shield 11 has cover body part 13 and two side parts 14, and cover body part 13 and two side parts 14 form as one; Wherein, Cover body part 13 be shaped as rectangle, vertical distribution are at two sides of cover body part 13 respectively for two side parts 14, the upper surface of cover body part 13 is smooth arc; Also be provided with two reinforcements 15 of protrusion downwards on the lower surface of cover body part, cover body part and two sides partly pass through round-corner transition.

Cover body part 13 can be designed to the plane, also can be designed as arc, when cover body partial design camber, can prevent that sleet is deposited on the antenna shield 11.

The cover body part of antenna shield and two side parts all are to be processed by resin batch mixing and glass fiber; Wherein, the resin batch mixing accounts for 45% in total amount, and said glass fiber accounts for 55% in total amount; The composition and the ratio of making said resin batch mixing are: adjacent benzene resin contains 90%; The compound material that adds contains 5%, and curing agent, pigment paste, UV resistant agent contain 5%, and the composition and the ratio of making said glass fiber are: non-alkali yarn contains 80%; The alkali-free felt contains 20%, and this antenna shield can pass through ripple and light weight, intensity is high, toughness is high, anti-aging, the life-span is long.

Fig. 2 is the structural representation of the reinforcement of the crack radiating guide protective cover in the embodiment of the present invention.As shown in Figure 2, two reinforcements 15 extend and downward protrusion along cover body length direction partly, have improved the intensity of antenna shield 11.

The quantity of this reinforcement can be any bar, and its position can be at the arbitrary surfaces of this antenna shield, and its shape can have any shape, and its direction can be raised or sunken from the protective cover arbitrary surfaces.

What Fig. 3～5 showed is the crack radiating guide protective cover user mode sketch map in the embodiment of the present invention.Shown in Fig. 3～5, wherein comprise the crack waveguide 12 of the crack wave antenna that is used for transmission signals and a plurality of cracks on the crack waveguide 12, and crack radiating guide protective cover 11.Two side parts of crack radiating guide protective cover 11 are closely fitted with the both sides of crack waveguide; Stagger in the reinforcement and the crack of cover body part; Top position with the crack waveguide fits simultaneously; Thereby just right covers on crack waveguide and the crack, and whole crack radiating guide has been played tangible protective action.

Execution mode effect and effect

The crack radiating guide protective cover 11 of the present invention in execution mode is to be processed by resin batch mixing and glass fiber; The resin batch mixing accounts for 45% in total amount, said glass fiber accounts for 55% in total amount; The composition and the ratio of making said resin batch mixing are: adjacent benzene resin contains 90%, and the compound material that adds contains 5%, and curing agent, pigment paste, UV resistant agent contain 5%; The composition and the ratio of making said glass fiber are: non-alkali yarn contains 80%, and the alkali-free felt contains 20%;

Its rerum natura table is following:

1. thermal coefficient of expansion: 5.1 * 10 ^-6/ ℃;

2. hot strength: vertically being 210MPa, laterally is 75MPa;

3. stretch modulus: vertically being 22GPa, laterally is 10GPa;

4. bending strength: vertically being 302MPa, laterally is 76MPa;

5. bending modulus: vertically being 18.6GPa, laterally is 7.2GPa;

6. compressive strength: vertically being 258MPa, laterally is 98MPa;

7. modulus of compressibility: vertically being 19.2GPa, laterally is 7.2GPa;

8. impact strength: 279KJ/m ²

9. water absorption rate (max): 0.57%;

10. dielectric constant: 5;

11. serviceability temperature :-30 ℃～+ 70 ℃;

12. useful life: 20 years;

13. color: can customize by user's sample.

In sum; The crack radiating guide that obtains through above embodiment has performance and light weight, the functions such as intensity is high, toughness is high, anti-aging, long-life that can pass through ripple; Therefore satisfied the transmission performance of crack radiating guide; Solved the waterproof and dustproof of existing crack radiating guide, anti-wear, anti-problem such as trample simultaneously, guaranteed the normal operation of communication system, thereby can guarantee safe operation like track traffic and other communication systems.

Antenna shield among the present invention is not only applicable to use in the track traffic in addition, can also be used in other occasions such as communication radar peculiar to vessel, ground communication radar as the safeguard procedures of crack radiating guide.

Claims

1. the antenna shield that the crack waveguide that is used for the crack radiating guide protects is characterized in that, comprising:

Cover the cover body part of waveguide top, said crack; And

Extend two side parts that cover said crack waveguide,

Wherein, said cover body part and said two side end branches of said protective cover form as one, and all are to be processed by resin batch mixing and glass fiber.

2. protective cover according to claim 1 is characterized in that:

Wherein, said cover body part and said two side ends are fractal all has the performance that can pass through ripple.

3. protective cover according to claim 1 is characterized in that:

Wherein, said cover body part is curved.

4. protective cover according to claim 1 is characterized in that:

Wherein, the length direction that also is provided with at least one said crack, edge waveguide with said crack waveguide facing surfaces of said cover body part forms and to the reinforcement of described crack waveguide surface protrusion.

5. protective cover according to claim 1 is characterized in that:

Wherein, said resin batch mixing accounts for 45% in total amount, and said glass fiber accounts for 55% in total amount.

6. protective cover according to claim 5 is characterized in that:

Wherein, said resin batch mixing is by adjacent benzene resin, the compound material that adds, and curing agent, pigment paste, UV resistant agent are formed, and the content of adjacent benzene resin is 90%, and the compound content that adds material is 5%, and the content of curing agent, pigment paste, UV resistant agent is 5%.

7. protective cover according to claim 5 is characterized in that:

Wherein, said glass fiber is made up of non-alkali yarn and alkali-free felt, and the content of non-alkali yarn is 80%, and the content of alkali-free felt is 20%.