CN210468091U

CN210468091U - Plastic dielectric quadrifilar helix antenna

Info

Publication number: CN210468091U
Application number: CN201921402852.8U
Authority: CN
Inventors: 姚彩虹
Original assignee: DONGGUAN SUNSHINE LASER & ELECTRONICS TECHNOLOGY Ltd
Current assignee: DONGGUAN SUNSHINE LASER & ELECTRONICS TECHNOLOGY Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-05
Anticipated expiration: 2029-08-27

Abstract

The utility model discloses a plastic medium quadrifilar helix antenna relates to the antenna field, does not set up fixed establishment for solving current quadrifilar helix antenna among the prior art, receives the damage easily when the in-process that uses receives the strong wind to cause great economic loss's problem. The fixed plate is installed to the top of bottom plate, the backplate is installed to the upper end of fixed plate, the externally mounted of fixed plate has the dead lever, the retainer plate is installed to one side of dead lever, the internally mounted of retainer plate has the base member, the upper end of base member is provided with the through-hole, the access panel is installed to the up end of base member, the upper end of access panel is provided with fastening screw, the inside of locating plate is provided with signal output part, the surface of base member is provided with the spiral antenna passageway, fastening bolt is all installed to the both sides of bottom plate, the slipmat is installed to the lower extreme of base member, the below of slipmat is provided with fixed joint.

Description

Plastic dielectric quadrifilar helix antenna

Technical Field

The utility model relates to the technical field of antennas, specifically be a plastic medium quadrifilar helix antenna.

Background

Wires, an indispensable part of all wireless communication systems, entail transforming signals emitted by transmitters into electromagnetic waves to propagate towards space, or converting an electromagnetic signal in a free space into a high-frequency signal for a receiver to receive, thereby realizing a space signal exchange process of wireless communication, c.c. kilgus proposed in 1968 a resonant four-arm helical antenna, which is composed of four helical arms, each of which has a length of an integral multiple of a quarter wavelength, the feeding ends of the four helical arms have equal current amplitudes, and phases sequentially differ by 90 °, and has a heart-shaped directional pattern, a good front-to-back ratio, and an excellent wide-beam circular polarization characteristic, and is very suitable for being used as a receiving antenna of a satellite positioning system, a typical helical antenna is generally cylindrical, and is generally formed by winding a metal wire, and the structure of the helical antenna is shown in fig. 1, and the spatial characteristic parameters of the helical antenna structure are three: helix height, pitch, and diameter.

The four-arm helical antenna is usually formed by winding metal wires and consists of four helical arms, wherein the length of each helical arm is integral multiple of a quarter wavelength, the current amplitudes of the feed ends of the four helical arms are equal, and the phases of the feed ends of the four helical arms are sequentially different by 90 degrees, so that the feed network is required to meet the power distribution and simultaneously the phase shift condition limitation is also considered, and the internal structure of the four-arm helical antenna is precise, and the existing four-arm helical antenna is not provided with a fixing mechanism, so that the existing four-arm helical antenna is easily damaged when being subjected to strong wind in the using process, and the great economic loss is caused; therefore, the market urgently needs to develop a plastic medium quadrifilar helix antenna to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastic medium quadrifilar helix antenna to current quadrifilar helix antenna who proposes in solving above-mentioned background art does not set up fixed establishment, receives the damage easily when the in-process that uses receives the strong wind, thereby causes great economic loss's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic medium four-arm helical antenna comprises a bottom plate, wherein a fixed plate is installed above the bottom plate, a protective plate is installed at the upper end of the fixed plate, a fixed rod is installed outside the fixed plate, a fixed ring is installed on one side of the fixed rod, a base body is installed inside the fixed ring, a through hole is formed in the upper end of the base body, an access panel is installed on the upper end face of the base body, a fastening screw is arranged at the upper end of the access panel, a positioning plate is installed at the upper end of the access panel, a signal output end is arranged inside the positioning plate, a helical antenna channel is arranged on the outer surface of the base body, a fixed block is arranged at the upper end of the protective plate, a rotating screw is arranged inside the fixed block, fastening bolts are installed on two sides of the bottom plate, an anti-, the outside of fixed joint is provided with the external screw thread, input line connects is installed to fixed joint's lower extreme.

Preferably, the fixed plate is welded to the bottom plate, a spiral arm radiation structure is mounted inside the fixed plate, and the spiral arm radiation structure is electrically connected to the input line connector.

Preferably, the guard plate and the fixing plate are arranged into an integral structure, the fixing blocks are connected with the guard plate in a welding mode, and the number of the fixing blocks is four.

Preferably, the lower end of the fixed rod is movably connected with the fixed block through a rotating screw, a clamping groove is formed in the upper end of the fixed rod, and the fixed rod is fixedly connected with the fixed ring through the clamping groove.

Preferably, the access panel passes through fastening screw and base member fixed connection, the locating plate passes the access panel and extends to the base member outside, signal output part extends to the locating plate outside and passes through fixed screw connection with the locating plate.

Preferably, the through hole and the base body are arranged into an integral structure, a quadrifilar helical antenna is arranged inside the through hole, and the quadrifilar helical antenna penetrates through the through hole to extend to the interior of a helical antenna channel and be attached to the interior of the helical antenna channel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting through the dead lever, at helical antenna at external during operation, the stability of self influences the intensity of received signal very much, helical antenna passageway through the base member surface is with the fixed laminating of helical antenna on the base member, the rethread retainer plate is fixed firm with helical antenna at the end of through-hole department, thereby make helical antenna keep the stationary state, the rethread dead lever is fixed retainer plate and backplate, thereby make base member and fixed plate keep the horizontality, thereby make helical antenna keep balanced stable, meet the weather of strong wind and rain promptly, also can absorb the horizontal shaking force of fore-and-aft direction through the dead lever, the damage that four arm helical antenna received because of vibrations has been reduced.

2. The utility model discloses a through fixed joint's setting, when carrying out the dismouting to four arm helical antenna, the accessible external screw thread is fixed or dismantles fixed joint and fixed plate to facilitate the use, make its stability that keeps good through the slipmat, conveniently make whole four arm helical antenna fix through the fastening bolt on the bottom plate, improved four arm helical antenna's working strength, it is simple to use.

Drawings

Fig. 1 is a top view of a plastic dielectric quadrifilar helix antenna according to the present invention;

fig. 2 is a side view of a plastic dielectric quadrifilar helix antenna of the present invention;

fig. 3 is a schematic structural diagram of the base body of the present invention.

In the figure: 1. a base plate; 2. a fixing plate; 3. a guard plate; 4. fixing the rod; 5. a stationary ring; 6. a substrate; 7. a through hole; 8. an access panel; 9. fastening screws; 10. positioning a plate; 11. a signal output terminal; 12. a helical antenna channel; 13. a fixed block; 14. rotating the screw; 15. fastening a bolt; 16. a non-slip mat; 17. fixing the joint; 18. an external thread; 19. an input line connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a plastic medium four-arm helical antenna comprises a bottom plate 1, a fixed plate 2 is installed above the bottom plate 1, a guard plate 3 is installed at the upper end of the fixed plate 2, a fixed rod 4 is installed outside the fixed plate 2, a fixed ring 5 is installed on one side of the fixed rod 4, a base body 6 is installed inside the fixed ring 5, a through hole 7 is formed in the upper end of the base body 6, an access panel 8 is installed on the upper end face of the base body 6, a fastening screw 9 is arranged at the upper end of the access panel 8, a positioning panel 10 is installed at the upper end of the access panel 8, a signal output end 11 is arranged inside the positioning panel 10, a helical antenna channel 12 is arranged on the outer surface of the base body 6, a fixed block 13 is arranged at the upper end of the guard plate 3, a rotating screw 14 is arranged inside the fixed block 13, fastening bolts 15 are installed, the outside of the fixed joint 17 is provided with an external thread 18, and the lower end of the fixed joint 17 is mounted with an input line joint 19.

Further, fixed plate 2 and 1 welded connection of bottom plate, the internally mounted of fixed plate 2 has spiral arm radiation structure, and spiral arm radiation structure and input line joint 19 electric connection, even go into the power through input line joint 19, make the antenna carry out work.

Further, backplate 3 sets up to a body structure with fixed plate 2,

fixed block

13 and 3 welded connection of backplate, and fixed block 13 is provided with four, conveniently is connected with dead lever 4 through fixed block 13.

Further, the lower extreme of dead lever 4 passes through rotatory screw 14 and fixed block 13 swing joint, and the upper end of dead lever 4 is provided with the draw-in groove, and dead lever 4 passes through draw-in groove and 5 fixed connection of retainer plate, and it is fixed with retainer plate 5 and backplate 3 through dead lever 4 to make base member 6 and fixed plate 2 keep the horizontality, thereby make spiral antenna keep balanced stable.

Further, access panel 8 passes through fastening screw 9 and base member 6 fixed connection, and locating plate 10 passes access panel 8 and extends to the base member 6 outside, and signal output part 11 extends to the locating plate 10 outside and passes through fixed screw with locating plate 10 and be connected, can open base member 6 through access panel 8 and overhaul, makes signal output part 11 remain stable through locating plate 10.

Further, through-hole 7 sets up to a body structure with base member 6, and the inside of through-hole 7 is provided with quadrifilar helix antenna, and quadrifilar helix antenna passes through-hole 7 and extends to inside and the laminating of helical antenna passageway 12, and helical antenna passageway 12 through the 6 surfaces of base member is fixed the laminating of helical antenna on base member 6, and the rethread retainer plate 5 is fixed firm with the end of helical antenna in through-hole 7 department to make helical antenna keep the stationary state.

The working principle is as follows: when the quadrifilar helix antenna is disassembled and assembled, the fixed joint 17 and the fixed plate 2 can be fixed or disassembled through the external thread 18, thereby facilitating the use, the anti-skid pad 16 keeps good stability, the whole quadrifilar helix antenna is conveniently fixed through the fastening bolt 15 on the bottom plate 1, when in use, the quadrifilar helix antenna is fixedly attached on the base body 6 through the helix antenna channel 12 on the outer surface of the base body 6, the end of the helix antenna at the through hole 7 is fixedly fixed through the fixed ring 5, thereby the helix antenna keeps a fixed state, the fixed ring 5 and the guard plate 3 are fixed through the fixed rod 4, thereby the base body 6 and the fixed plate 2 keep a horizontal state, the helix antenna keeps balanced and stable, namely, the weather of strong wind and rain can absorb the horizontal vibration force in the front and back directions through the fixed rod 4, and the damage is reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A plastic dielectric quadrifilar helix antenna, comprising a bottom plate (1), characterized in that: the fixing plate is characterized in that a fixing plate (2) is installed above the bottom plate (1), a protection plate (3) is installed at the upper end of the fixing plate (2), a fixing rod (4) is installed outside the fixing plate (2), a fixing ring (5) is installed on one side of the fixing rod (4), a base body (6) is installed inside the fixing ring (5), a through hole (7) is formed in the upper end of the base body (6), an overhaul plate (8) is installed on the upper end face of the base body (6), a fastening screw (9) is arranged at the upper end of the overhaul plate (8), a positioning plate (10) is installed at the upper end of the overhaul plate (8), a signal output end (11) is arranged inside the positioning plate (10), a spiral antenna channel (12) is arranged on the outer surface of the base body (6), a fixing block (13) is arranged at the upper end of the protection plate, fastening bolts (15) are installed on two sides of the bottom plate (1), a non-slip mat (16) is installed at the lower end of the base body (6), a fixed joint (17) is arranged below the non-slip mat (16), external threads (18) are arranged outside the fixed joint (17), and an input line joint (19) is installed at the lower end of the fixed joint (17).

2. A plastic dielectric quadrifilar helix antenna according to claim 1, wherein: fixed plate (2) and bottom plate (1) welded connection, the internally mounted of fixed plate (2) has spiral arm radiation structure, and spiral arm radiation structure and input line joint (19) electric connection.

3. A plastic dielectric quadrifilar helix antenna according to claim 1, wherein: backplate (3) set up structure as an organic whole with fixed plate (2), fixed block (13) and backplate (3) welded connection, fixed block (13) are provided with four.

4. A plastic dielectric quadrifilar helix antenna according to claim 1, wherein: the lower end of the fixed rod (4) is movably connected with the fixed block (13) through a rotating screw (14), a clamping groove is formed in the upper end of the fixed rod (4), and the fixed rod (4) is fixedly connected with the fixed ring (5) through the clamping groove.

5. A plastic dielectric quadrifilar helix antenna according to claim 1, wherein: maintenance board (8) are through fastening screw (9) and base member (6) fixed connection, locating plate (10) pass maintenance board (8) and extend to base member (6) outside, signal output part (11) extend to locating plate (10) outside and pass through fixed screw connection with locating plate (10).

6. A plastic dielectric quadrifilar helix antenna according to claim 1, wherein: through-hole (7) set up structure as an organic whole with base member (6), the inside of through-hole (7) is provided with quadrifilar helix antenna, and quadrifilar helix antenna passes through-hole (7) and extends to inside and the laminating of helical antenna passageway (12).