CN219226616U

CN219226616U - Double circular polarization ultra wideband conical horn antenna

Info

Publication number: CN219226616U
Application number: CN202223571277.9U
Authority: CN
Inventors: 胡南; 谢文青; 刘建睿; 刘爽; 赵丽新
Original assignee: Beijing Xingyinglian Microwave Technology Co ltd
Current assignee: Beijing Xingyinglian Microwave Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a double circular polarization ultra-wideband conical horn antenna, and relates to the technical field of antennas for communication. The horn antenna comprises an antenna body and further comprises an electric bridge, wherein two input ends of the electric bridge are suspended or one of the two input ends of the electric bridge is connected with a load, the two input ends of the electric bridge are used for inputting vertical polarization signals and/or horizontal polarization signals, the two output ends of the electric bridge are respectively connected with two connectors on the antenna body through cables, and the two connectors on the antenna body are respectively connected with two ridges in the antenna body. The horn antenna can be used for carrying out multimode polarization fast switching according to the requirement, and has good gain characteristic and standing wave characteristic while realizing broadband.

Description

Double circular polarization ultra wideband conical horn antenna

Technical Field

The utility model relates to the technical field of horn antennas, in particular to a double circular polarization ultra-wideband conical horn antenna.

Background

An antenna is an electromagnetic field energy transformer for transforming a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space) or vice versa. Which belongs to a core component for transmitting or receiving electromagnetic waves in a radio device.

In general, the antenna polarization may be selected according to the application requirements. Different applications may achieve better results from different polarizations. For example, since vertically polarized electromagnetic waves are more likely to pass through rugged terrain than horizontally polarized electromagnetic waves, vertically polarized antennas perform better in land mobile communications applications, while horizontally polarized modes perform better in applications relying on the ionosphere and typically for long-range communications. In addition, circular polarization is commonly used for satellite communications, as circular polarization generally better mitigates the debilitation caused by satellite orientation offset.

In the case of circularly polarized antennas, currently, the antenna can only work in a single polarization mode, for example, can only work in left-hand polarization or right-hand polarization, and when different polarized antennas are needed, the antenna needs to be manually replaced.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a double circular polarization ultra-wideband conical horn antenna which can perform multi-mode polarization fast switching according to requirements, realizes broadband and has good gain characteristic and standing wave characteristic.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a two circular polarization ultra wide band cone horn antenna, includes antenna body, its characterized in that: the antenna comprises an antenna body, and is characterized by further comprising a bridge, wherein two input ends of the bridge are suspended or one of the two input ends of the bridge is connected with a load, the two input ends of the bridge are used for inputting vertical polarization signals and/or horizontal polarization signals, the two output ends of the bridge are respectively connected with two connectors on the antenna body through cables, and the two connectors on the antenna body are respectively connected with two ridges in the antenna body.

The further technical proposal is that: the antenna body includes the toper chamber and fixes the back splint in the toper chamber outside, the left and right sides of toper chamber has the opening, just the diameter in toper chamber from left to right increases gradually, be fixed with four ridges in the toper chamber, the contained angle between every two ridges is 90, the left end opening in toper chamber is fixed with back chamber, back chamber passes through screw and spine fixed connection, be formed with the toper groove in the back chamber, just the left end in toper groove does not run through the left side terminal surface in back chamber, the right-hand member diameter in toper groove with the left end internal diameter in toper chamber is the same, follows the circumferencial direction in toper groove is formed with four slots, the left end of ridge inserts in the slot, one of them behind the center post on the connector passed a set of two relative ridges, from back intracavity, another of them behind the center post on the connector passed another set of two relative ridges, from back intracavity wear out, and every center post is just contacted with other ridge.

The further technical proposal is that: the periphery in toper chamber is formed with the lumbar disc, be formed with a plurality of mounting plane on the lumbar disc, and be formed with the screw thread mounting hole on every mounting plane, the screw thread mounting hole on mounting plane and the mounting plane is used for installing fixed back splint and uses.

The further technical proposal is that: four rows of threaded mounting holes penetrating through the side wall of the conical cavity are formed in the axis direction of the conical cavity, and the four rows of threaded mounting holes are used for fixing four ridges.

The further technical proposal is that: the four corners of the cover plate are provided with mounting parts extending outwards, and the mounting parts are provided with mounting holes.

The further technical proposal is that: each ridge is formed with a row of threaded mounting holes, and the ridge is mounted to the inner wall of the conical cavity through the threaded mounting holes and screws.

The further technical proposal is that: the ridges are not in direct contact with each other, and signals with the same amplitude and 90-degree phase difference are generated at two ports of the output side of the bridge through the cable and the bridge.

The further technical proposal is that: the back clamp comprises a cylindrical part and a circular ring part, the circular ring part is fixed at one end of the cylindrical part, the left end of the conical cavity is inserted into the cylindrical part and then penetrates out of a through hole in the circular ring part, and the right end of the cylindrical part is fixed on the periphery of the conical cavity through a screw.

The further technical proposal is that: the bridge is secured within the barrel and two input ends of the bridge extend from interface holes on the barrel.

The further technical proposal is that: two input ends of the bridge are respectively connected with one ends of two cables, and the other ends of the two cables extend out of the cable holes on the circular ring part and are connected with the connector.

The beneficial effects of adopting above-mentioned technical scheme to produce lie in: the bandwidth is wide, and the device can work in a microwave millimeter wave frequency band; 3 circular polarization modes can be supported to work by adjusting the position of the load, and a left-hand circular polarization mode, a right-hand circular polarization mode and a left-hand right-hand double circular polarization mode are adopted; in addition, the antenna has the advantages of simple and compact structure, miniaturization, effective space saving, high gain, low standing wave, high cross polarization isolation and the like. In addition, the back cavity is provided with a slot, the front end of the ridge is inserted into the slot, the slot matched with the back cavity and the ridge is integrally processed, so that a mounting gap can be avoided, and the accuracy of the relative position of the ridge is high; the conical cavity is beneficial to the impedance matching debugging optimization performance of the ultra-wideband.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic perspective view of a horn antenna according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a horn antenna according to an embodiment of the present utility model;

FIG. 3 is a schematic left-hand view of a horn antenna according to an embodiment of the present utility model;

fig. 4 is a schematic front view of a horn antenna according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a horn antenna according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a back clip according to a first embodiment of the present utility model;

fig. 7a-7f are schematic structural views of an antenna body according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a bridge in accordance with a first embodiment of the present utility model;

FIG. 9 is a schematic diagram of a structure of one or two cables according to an embodiment of the present utility model;

FIGS. 10a-10b are schematic illustrations of the configuration of a conical chamber in accordance with a first embodiment of the present utility model;

FIG. 11 is a schematic view of a back cavity according to an embodiment of the present utility model;

FIG. 12 is a schematic view of a cover plate according to an embodiment of the utility model;

FIG. 13 is a schematic view showing the structure of the ridge according to the first embodiment of the present utility model;

fig. 14 is a schematic structural diagram of an antenna according to a second embodiment of the present utility model;

fig. 15 is a schematic structural diagram of an antenna according to a second embodiment of the present utility model;

wherein: 1. an electric bridge; 2. a load; 3. a cable; 4. a connector; 5. a ridge; 6. a conical cavity; 7. a back clip; 8. a back cavity; 9. a cover plate; 10. a slot; 11. a lumbar disc; 12. a threaded mounting hole; 13. a mounting part; 14. a cylindrical portion; 15. a circular ring portion; 16. an interface hole; 17. and a cable hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Example 1

As shown in fig. 1-5, the embodiment of the utility model discloses a double circular polarization ultra wideband conical horn antenna, which comprises an antenna body, an electric bridge 1 and two cables 3, wherein connecting joints (as shown in fig. 9, the connecting joints are connected with other components) are arranged at two ends of each cable 3. The two input ends of the bridge 1 are suspended or one of the two input ends is connected with a load 2 (that is, three specific setting modes of the load 2 are provided, the two input ends of the bridge 1 are suspended and no load 2 is installed, the two input ends of the bridge 1 are suspended, the other input end is provided with a load, the third, contrary to the second case, the suspended end of the bridge 1 is provided with a complex structure, the other end is suspended), the two input ends of the bridge 1 are used for inputting vertical polarization signals and/or horizontal polarization signals, the two output ends of the bridge 1 are respectively connected with two connectors 4 on the antenna body through cables 3, and the two connectors 4 on the antenna body are respectively connected with two ridges 5 in the antenna body.

Further, as shown in fig. 5-13, in this embodiment, the antenna body includes a conical cavity 6 and a back clip 7 fixed on the outer side of the conical cavity 6, openings are formed at the left and right ends of the conical cavity 6, the diameter of the conical cavity 6 of the conical cavity 1 gradually increases from left to right, four ridges 5 are fixed in the conical cavity 6, an included angle between every two ridges 5 is 90 °, a back cavity 8 is fixed at the left end opening of the conical cavity 6, a cover plate 9 is fixed on the outer side of the back cavity 8, and the back cavity 8 is fixedly connected with the ridges 5 through screws. The back cavity 8 is internally provided with a conical groove, the left end of the conical groove does not penetrate through the left end face of the back cavity, the right end diameter of the conical groove is identical to the left end inner diameter of the conical cavity 6, four slots 10 are formed along the circumferential direction of the conical groove, the left ends of the ridges 5 are inserted into the slots 10, one of the center posts on the connector 4 penetrates through one set of two opposite ridges 5 and then penetrates out of the back cavity 8, the other center post on the connector 4 penetrates through the other set of two opposite ridges 5 and then penetrates out of the back cavity 8, and each center post is only in contact with one ridge 5 but not in contact with other ridges 5.

Further, as shown in fig. 6, the back clip 7 includes a cylindrical portion 14 and a circular ring portion 15, the circular ring portion 15 is fixed at one end of the cylindrical portion 14, the left end of the conical cavity 6 is inserted into the cylindrical portion 14 and then is penetrated out of a through hole in the circular ring portion 15, and the right end of the cylindrical portion 14 is fixed to the outer circumference of the conical cavity 6 by a screw. The bridge 1 is fixed into the barrel 14 and the two input ends of the bridge 1 protrude from the interface aperture 16 in the barrel 14. Two input ends of the bridge 1 are respectively connected with one ends of two cables 3, and the other ends of the two cables 3 are connected with the connector 4 after extending out through cable holes 17 on the circular ring part 15.

Further, as shown in fig. 7a-7f, a waist plate 11 is formed on the periphery of the conical cavity 6, a plurality of mounting planes are formed on the waist plate 11, a threaded mounting hole 12 is formed on each mounting plane, and the mounting planes and the threaded mounting holes 12 on the mounting planes are used for mounting and fixing the back clip 7; four rows of threaded mounting holes penetrating through the side wall of the conical cavity 6 are formed in the axial direction of the conical cavity, and the four rows of threaded mounting holes are used for fixing four ridges 5.

As shown in fig. 12, the cover plate 9 is formed at four corners thereof with outwardly extending mounting portions 13, on which mounting holes are formed. As shown in fig. 13, a row of screw mounting holes is formed on each ridge 5, and the ridge 5 is mounted to the inner wall of the tapered cavity 6 by the screw mounting holes and screws. The two cables 3 have equal lengths, and the two ports of the bridge on the output side generate signals with the same amplitude and 90 degrees phase difference through the cables 3 and the bridge 1.

Example two

A difference from the first embodiment is that in the horn antenna of this embodiment, one input end of the bridge 1 is suspended, and the other input end is provided with a load, as shown in fig. 15.

Example III

The difference from the second embodiment is that in the horn antenna of the present embodiment, the load is disposed at the floating input end of the bridge 1 in the second embodiment, and the other input end of the bridge 1 is disposed in the floating state, as shown in fig. 15.

Principle of: by adding an absorption matching load (generally 50 ohms) to one port of the dual circularly polarized antenna, the single left circularly polarized antenna or the single right circularly polarized antenna can be realized (the second embodiment or the third embodiment). After passing through the 90-degree bridge, the two polarization modes of left-hand circular polarization and right-hand circular polarization can be simultaneously output at two ports without any load (embodiment one).

Claims

1. The utility model provides a two circular polarization ultra wide band cone horn antenna, includes antenna body, its characterized in that: the antenna comprises an antenna body and is characterized by further comprising an electric bridge (1), wherein two input ends of the electric bridge (1) are suspended or one of the two input ends is connected with a load (2), the two input ends of the electric bridge (1) are used for inputting vertical polarization signals and/or horizontal polarization signals, two output ends of the electric bridge (1) are respectively connected with two connectors (4) on the antenna body through cables (3), and the two connectors (4) on the antenna body are respectively connected with two ridges (5) in the antenna body.

2. The dual circularly polarized ultra wideband conical feedhorn of claim 1, wherein: the antenna body includes toper chamber (6) and fixes back splint (7) in toper chamber (6) outside, both ends have the opening about toper chamber (6), just the diameter of toper chamber (6) from left to right increases gradually, toper chamber (6) internal fixation has four ridges (5), and contained angle between every two ridges (5) is 90, the left end opening of toper chamber (6) is fixed with back chamber (8), back chamber (8) pass through screw and ridge (5) fixed connection, the outside of back chamber (8) is fixed with apron (9), be formed with the conical groove in back chamber (8), just the left end of conical groove does not run through the left side terminal surface of back chamber, the right-hand member diameter of conical groove with the left end internal diameter of toper chamber (6) is the same, follows the circumferencial direction of conical groove is formed with four slot (10), the left end of ridge (5) is inserted in slot (10), one of them back chamber (4) are fixed with ridge (5) fixed connection in the back of one of the back chamber (8) is followed two and is passed back (5) and is passed back chamber (5) and one of them and is passed back (5) and one of them and is passed back (5) and the back of the pillar (5) is passed through.

3. The dual circularly polarized ultra wideband conical feedhorn of claim 2, wherein: the periphery in toper chamber (6) is formed with lumbar disc (11), be formed with a plurality of mounting plane on lumbar disc (11), and be formed with screw thread mounting hole (12) on every mounting plane, screw thread mounting hole (12) on mounting plane and the mounting plane are used for installing fixed back splint (7) use.

4. The dual circularly polarized ultra wideband conical feedhorn of claim 2, wherein: four rows of threaded mounting holes penetrating through the side wall of the conical cavity (6) are formed in the axis direction of the conical cavity, and the four rows of threaded mounting holes are used for fixing four ridges (5).

5. The dual circularly polarized ultra wideband conical feedhorn of claim 2, wherein: mounting portions (13) extending outwards are formed at four corners of the cover plate (9), and mounting holes are formed in the mounting portions.

6. The dual circularly polarized ultra wideband conical feedhorn of claim 2, wherein: a row of threaded mounting holes are formed in each ridge (5), and the ridges (5) are mounted on the inner wall of the conical cavity (6) through the threaded mounting holes and screws.

7. The dual circularly polarized ultra wideband conical feedhorn of claim 2, wherein: the ridge (5) is not in direct contact with the ridge (5), and signals with the same amplitude and 90-degree phase difference are generated at two ports of the output side of the bridge through the cable (3) and the bridge (1).

8. The dual circularly polarized ultra wideband conical feedhorn of claim 2, wherein: the back clamp (7) comprises a cylindrical part (14) and a circular ring part (15), the circular ring part (15) is fixed at one end of the cylindrical part (14), the left end of the conical cavity (6) is inserted into the cylindrical part (14) and then penetrates out of a through hole in the circular ring part (15), and the right end of the cylindrical part (14) is fixed on the periphery of the conical cavity (6) through a screw.

9. The dual circularly polarized ultra wideband conical feedhorn of claim 8, wherein: the bridge (1) is fixed into the cylindrical portion (14) and two input ends of the bridge (1) protrude from interface holes (16) on the cylindrical portion (14).

10. The dual circularly polarized ultra wideband conical feedhorn of claim 8, wherein: two input ends of the bridge (1) are respectively connected with one ends of two cables (3), and the other ends of the two cables (3) are connected with the connector (4) after extending out through cable holes (17) in the circular ring part (15).