CN220963747U

CN220963747U - Printed oscillator antenna

Info

Publication number: CN220963747U
Application number: CN202322953720.7U
Authority: CN
Inventors: 曹军; 杨洁
Original assignee: Hefei Chuangwei Microwave Device Design Co ltd
Current assignee: Hefei Chuangwei Microwave Device Design Co ltd
Priority date: 2023-11-02
Filing date: 2023-11-02
Publication date: 2024-05-14
Anticipated expiration: 2033-11-02

Abstract

The utility model discloses a printed oscillator antenna, which comprises a reflecting plate and an antenna body arranged on the reflecting plate, wherein the antenna body comprises an antenna substrate and oscillator units made of metal and printed on two sides of the antenna substrate, a power divider is arranged below the reflecting plate and is connected with a radio frequency connector for transmitting signals, a cylindrical conductor is arranged on the power divider, and the upper end of the cylindrical conductor passes through the reflecting plate and is welded and connected with the oscillator units on one side surface of the antenna substrate; the outside of the cylindrical conductor is provided with a step shaft, the diameter of the step shaft is larger than that of the cylindrical conductor, and the step shaft is positioned between the power divider and the reflecting plate and is attached to the power divider. According to the utility model, the antenna substrate is welded with the cylindrical conductor through the vibrator unit, and the cylindrical conductor is welded with the power divider, so that the processing is convenient; the cylindrical conductor is limited and guided through the step shaft, so that the welding is convenient and firm.

Description

Printed oscillator antenna

Technical Field

The utility model relates to the technical field of radar antennas, in particular to a printed element antenna.

Background

A printed element antenna is one type of radar antenna, which includes a dielectric substrate and element units printed on the dielectric substrate, and the element units are generally designed to have a pattern of a specific shape and size to achieve specific electromagnetic radiation characteristics. In the fields of radar and electronic warfare, printed element antennas may be used to achieve high accuracy and high efficiency radio wave transmission and reception. The printed oscillator antenna has the advantages of thin section, small volume, light weight, planar structure, easy conformal with a carrier and integration of a feed network and the antenna, and is suitable for the fields of wireless communication, radar and electronic war, internet of things, intelligent home and the like. The printed element antenna has the characteristics of wide-band omnidirectional radiation, low profile and the like, and has excellent performance in radar systems, electronic reconnaissance, electronic interference and other applications.

In the structure of the printed element antenna, the element unit on the dielectric substrate needs to be connected with the power divider through a cable conductor, and the existing printed element antenna needs to be improved so as to improve the installation convenience of the printed element antenna.

Disclosure of utility model

The utility model aims to solve the technical problems and provide a printed element antenna.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

The printed oscillator antenna comprises a reflecting plate and an antenna body arranged on the reflecting plate, wherein the antenna body comprises an antenna substrate and oscillator units made of metal and printed on two sides of the antenna substrate, a power divider is arranged below the reflecting plate and connected with a radio-frequency connector for transmitting signals, a cylindrical conductor is arranged on the power divider, and the upper end of the cylindrical conductor penetrates through the reflecting plate and is connected with the oscillator units on one side surface of the antenna substrate in a welding mode; the outside of cylinder conductor is provided with the step axle, the diameter of step axle is greater than the diameter of cylinder conductor, the step axle is located between merit and the reflecting plate and laminating on merit and divide the ware.

Further, the lower end of the cylindrical conductor extends to the lower part of the step shaft and passes through the power divider.

Further, the lower extreme of reflecting plate has been seted up the inside sunken mounting groove of reflecting plate, the merit divides the ware to be located mounting groove, set up the hole of dodging that runs through the reflecting plate on the reflecting plate, the vibrator unit welding of dodging hole and reflecting plate top is passed to the cylinder conductor upper end, mounting groove bottom fixedly connected with seals the open apron of mounting groove lower extreme.

Further, the cover plate is provided with an accommodating hole, and the lower end of the cylindrical conductor extends into the accommodating hole.

Further, a radio frequency connector is arranged on the cover plate, and a coaxial cable in the radio frequency connector penetrates through the cover plate to be connected with the power divider.

Further, an antenna bracket is fixedly connected to the reflecting plate and is located on one side, far away from the cylindrical conductor, of the antenna substrate, and the antenna bracket is attached to the antenna substrate and is welded with a side wall surface oscillator unit of the antenna substrate.

Further, an antenna housing is fixedly connected above the reflecting plate, and the antenna housing is arranged outside the antenna substrate.

Further, two oscillator units are printed on the surfaces of the side walls of the two sides of the antenna substrate, the power divider is of a T-shaped structure, two ends of the power divider are connected with cylindrical conductors, and the two cylindrical conductors are respectively connected with the two oscillator units on one side of the antenna substrate.

Further, the power divider comprises an insulating plate and a conductor plate fixed on the insulating plate, the conductor plate is located on one side of the insulating plate, close to the reflecting plate, the end part of the step shaft is abutted to the conductor plate and fixed on the conductor plate, and the coaxial cable penetrates through the power divider and is connected with the conductor plate in a welding mode.

The printed oscillator antenna provided by the utility model has the following beneficial effects: the antenna substrate is welded with the cylindrical conductor through the vibrator unit, and the cylindrical conductor is welded with the power divider, so that the processing is convenient; the cylindrical conductor is limited and guided through the step shaft, so that the cylindrical conductor and the power divider are prevented from falling down through the power divider in the welding process, the welding is convenient, the diameter of the step shaft is larger than that of the cylindrical conductor, the contact area between the step shaft and the power divider is ensured to be large when the welding is performed, the welding seam of the welding of the peripheral ring is longer, and the welding is firmer; the overall structure saves more space, so that the overall thickness of the reflecting plate of the antenna is lower.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

Fig. 1 is a schematic perspective view of a printed element antenna according to the present utility model;

Fig. 2 is a schematic diagram of a three-dimensional structure of a printed element antenna with a radome removed;

fig. 3 is a schematic diagram of a three-dimensional structure of a printed element antenna with a radome removed;

fig. 4 is a schematic three-dimensional structure of a printed element antenna with a radome removed;

fig. 5 is a schematic diagram of a front cross-sectional structure of a printed element antenna with a radome removed;

fig. 6 is a schematic top sectional structure of a printed element antenna with a radome removed;

fig. 7 is a schematic side sectional structure of a printed element antenna with a radome removed.

The reference numerals in the figures illustrate: 1. a reflection plate; 11. a mounting groove; 12. avoidance holes; 2. an antenna body; 21. an antenna substrate; 22. a vibrator unit; 3. a power divider; 31. an insulating plate; 32. a conductor plate; 4. a radio frequency connector; 41. a coaxial cable; 5. a cylindrical conductor; 51. a step shaft; 6. a cover plate; 61. a receiving hole; 7. an antenna support; 8. an antenna housing.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The following description of the technical solutions in the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. 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.

It should be noted that all directional indicators (such as up-down-left-right-front-rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship between the components, the motion condition, etc. in a specific posture (as shown in the drawings), if the specific posture is changed, the directional indicators are correspondingly changed, and the connection may be a direct connection or an indirect connection.

As shown in fig. 1-7, a printed element antenna comprises a reflecting plate 1 and an antenna body 2 arranged on the reflecting plate 1, wherein the antenna body 2 comprises an antenna substrate 21 and element units 22 made of metal and printed on two sides of the antenna substrate 21, a power divider 3 is arranged below the reflecting plate 1, the power divider 3 is connected with a radio frequency connector 4 for transmitting signals, a cylindrical conductor 5 is arranged on the power divider 3, and the upper end of the cylindrical conductor 5 penetrates through the reflecting plate 1 and is welded and connected with the element units 22 on one side surface of the antenna substrate 21; the outside of the cylindrical conductor 5 is provided with a step shaft 51, the diameter of the step shaft 51 is larger than that of the cylindrical conductor 5, and the step shaft 51 is positioned between the power divider 3 and the reflecting plate 1 and is attached to the power divider 3.

By adopting the scheme, the antenna substrate 21 is welded with the cylindrical conductor 5 through the vibrator unit 22, and the cylindrical conductor 5 is welded with the power divider 3, so that the processing is convenient; the cylindrical conductor 5 is subjected to limit guiding through the step shaft 51, so that the cylindrical conductor 5 and the power divider 3 are prevented from falling down after penetrating through the power divider 3 in the welding process, welding is facilitated, the diameter of the step shaft 51 is larger than that of the cylindrical conductor 5, the contact area between the step shaft 51 and the power divider 3 is large when welding is ensured, and the welding seam of the circumferential welding is longer, so that welding is firmer. The element unit 22 is a metal layer having a specific shape and size printed on the antenna substrate 21.

Specifically, the lower end of the cylindrical conductor 5 extends below the stepped shaft 51 and passes through the power divider 3. The cylindrical conductor 5 passes through the power divider 3, and the perpendicularity of the cylindrical conductor 5 and the surface of the power divider 3 is ensured by guiding the position of the cylindrical conductor 5 through one end of the power divider 3.

Specifically, the lower extreme of reflecting plate 1 has seted up the inside sunken mounting groove 11 of reflecting plate 1, power divider 3 is located mounting groove 11, set up the dodging hole 12 that runs through reflecting plate 1 on the reflecting plate 1, the vibrator unit 22 welding above cylindrical conductor 5 upper end passed dodging hole 12 and reflecting plate 1, mounting groove 11 bottom fixedly connected with seals the open apron 6 of mounting groove 11 lower extreme.

Specifically, the cover plate 6 is provided with a receiving hole 61, and the lower end of the cylindrical conductor 5 extends into the receiving guide hole. The cylindrical conductor 5 is avoided through the accommodating hole 61, and short circuit caused by contact between the cylindrical conductor 5 and the metal cover plate 6 is avoided.

Specifically, the cover plate 6 is provided with a radio frequency connector 4, and a coaxial cable 41 in the radio frequency connector 4 passes through the cover plate 6 to be connected with the power divider 3.

Specifically, the reflecting plate 1 is fixedly connected with an antenna support 7, the antenna support 7 is located at one side of the antenna substrate 21 far away from the cylindrical conductor 5, and the antenna support 7 is attached to the antenna substrate 21 and is welded with a side wall surface vibrator unit 22 of the antenna substrate 21. The antenna body 2 is fixed through the antenna bracket 7, so that firm connection is ensured.

Specifically, the antenna housing 8 is fixedly connected above the reflecting plate 1, and the antenna housing 8 is arranged outside the antenna substrate 21. The radome 8 above the reflecting plate 1 plays a role in preventing wind and rain and protecting the antenna body 2.

Specifically, two vibrator units 22 are printed on the surfaces of the side walls of the two sides of the antenna substrate 21, the power divider 3 is of a T-shaped structure, two ends of the power divider 3 are connected with cylindrical conductors 5, and the two cylindrical conductors 5 are respectively connected with the two vibrator units 22 on one side of the antenna substrate 21. The two vibrator units 22 are printed on the same antenna substrate 21, so that the vibrator units form a whole, and the positioning and the installation are convenient.

Specifically, the power divider 3 includes an insulating plate 31 and a conductor plate 32 fixed on the insulating plate 31, the conductor plate 32 is located on one side of the insulating plate 31 near the reflecting plate 1, the end of the step shaft 51 abuts against the conductor plate 32 and is fixed on the conductor plate 32, and the coaxial cable 41 penetrates through the power divider 3 and is welded to the conductor plate 32. The antenna signal is transmitted to the power divider 3 which is divided into two parts from the radio frequency connector 4, the signal is divided into two paths by the T-shaped conductor on the power divider 3, the two paths of signals are transmitted to the oscillator unit 22 on the antenna substrate 21 by the cylindrical conductor 5, and the oscillator unit 22 turns out the signal; the conductor plate 32 is located insulation board 31 and is close to reflecting plate 1 one side, firstly with merit divide ware 3 and cylinder conductor 5 welded connection during the welding, then install on reflecting plate 1 again, avoid traditional way to weld the bottom reserve space that causes with cylinder conductor 5 and merit divide ware 3 ground big, this scheme overall structure saves more space for the reflecting plate 1 overall thickness of antenna is lower.

The technical scheme does not relate to the fact that the technical scheme can be achieved through the prior art.

The foregoing has outlined and described the basic principles, main features and features of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A printed element antenna, characterized by: the antenna comprises a reflecting plate (1) and an antenna body (2) arranged on the reflecting plate (1), wherein the antenna body (2) comprises an antenna substrate (21) and vibrator units (22) made of metal and printed on two sides of the antenna substrate (21), a power divider (3) is arranged below the reflecting plate (1), the power divider (3) is connected with a radio-frequency connector (4) for transmitting signals, a cylindrical conductor (5) is arranged on the power divider (3), and the upper end of the cylindrical conductor (5) penetrates through the reflecting plate (1) and is connected with the vibrator units (22) on one side surface of the antenna substrate (21) in a welding mode; the outside of cylinder conductor (5) is provided with step axle (51), the diameter of step axle (51) is greater than the diameter of cylinder conductor (5), step axle (51) are located between merit divide ware (3) and reflecting plate (1) and laminating on merit divide ware (3).

2. A printed element antenna according to claim 1, characterized in that: the lower end of the cylindrical conductor (5) extends to the lower part of the step shaft (51) and passes through the power divider (3).

3. A printed element antenna according to claim 2, characterized in that: the utility model discloses a reflector plate, including baffle (1), mounting groove (11) that the inside sunken of baffle (1) has been seted up to the lower extreme of baffle (1), merit divides ware (3) to be located mounting groove (11), set up on baffle (1) and run through dodge hole (12) of baffle (1), vibrator unit (22) welding of dodging hole (12) and baffle (1) top is passed to cylinder conductor (5) upper end, mounting groove (11) bottom fixedly connected with seals apron (6) of mounting groove (11) lower extreme open.

4. A printed element antenna according to claim 3, characterized in that: the cover plate (6) is provided with a containing hole (61), and the lower end of the cylindrical conductor (5) extends into the containing hole (61).

5. A printed element antenna according to claim 3, characterized in that: the cover plate (6) is provided with a radio frequency connector (4), and a coaxial cable (41) in the radio frequency connector (4) penetrates through the cover plate (6) to be connected with the power divider (3).

6. A printed element antenna according to claim 3, characterized in that: an antenna bracket (7) is fixedly connected to the reflecting plate (1), the antenna bracket (7) is located on one side, far away from the cylindrical conductor (5), of the antenna substrate (21), and the antenna bracket (7) is attached to the antenna substrate (21) and is welded with a side wall surface vibrator unit (22) of the antenna substrate (21).

7. A printed element antenna according to claim 3, characterized in that: an antenna housing (8) is fixedly connected above the reflecting plate (1), and the antenna housing (8) is arranged outside the antenna substrate (21).

8. A printed element antenna according to claim 3, characterized in that: two oscillator units (22) are printed on the surfaces of the side walls of the two sides of the antenna substrate (21), the power divider (3) is of a T-shaped structure, two ends of the power divider (3) are connected with cylindrical conductors (5), and the two cylindrical conductors (5) are respectively connected with the two oscillator units (22) on one side of the antenna substrate (21).

9. A printed element antenna according to claim 5, wherein: the power divider (3) comprises an insulating plate (31) and a conductor plate (32) fixed on the insulating plate (31), the conductor plate (32) is located on one side, close to the reflecting plate (1), of the insulating plate (31), the end portion of the step shaft (51) is abutted to the conductor plate (32) and fixed on the conductor plate (32), and the coaxial cable (41) penetrates through the power divider (3) and is connected with the conductor plate (32) in a welding mode.