CN214477888U

CN214477888U - Ultra-wideband dual-polarized antenna

Info

Publication number: CN214477888U
Application number: CN202022767729.5U
Authority: CN
Inventors: 环剑斌
Original assignee: Jiangsu Sansheng Information Technology Co Ltd
Current assignee: Jiangsu Sansheng Information Technology Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-10-22
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses an ultra wide band dual polarized antenna, including the reflecting plate, be fixed in the connecting seat on the reflecting plate, and the dipole radiating element who is connected with the connecting seat, the dipole radiating element is established to 4 of connecting seat circumference equipartition, every dipole radiating element includes balun, the oscillator arm, balun and connecting seat fixed connection, the oscillator arm is established to two about the balun symmetry, the one end of oscillator arm is fixed with balun, the other end is inwards bent and is bent downwards again, the part of bending downwards is the loading section, two supporter of parallel arrangement on the balun, the one end and the connecting seat of supporter are fixed mutually, the other end is connected with the oscillator arm. The utility model discloses a frequency band is wide, and is efficient, ultra wide band dual polarized antenna that transmission performance and radiation performance are good.

Description

Ultra-wideband dual-polarized antenna

Technical Field

The utility model belongs to the technical field of mobile communication base station antenna technique and specifically relates to an ultra wide band dual polarized antenna.

Background

The rapid development of the communication industry, in order to meet the continuously improved electrical performance of the antenna, the requirements on the horizontal plane beam width and the front-to-back ratio of the antenna are higher and higher, and a vertical plane directional diagram also generally needs to adopt a lobe forming technology to obtain reliable communication quality. Meanwhile, in order to solve the problems of multipath fading and the like, the base station antenna adopts a polarization diversity technology, so that the quality of mobile communication is greatly improved.

The base station antenna is a key part of outdoor coverage of a mobile communication system, the polarization diversity mode of the current base station antenna is mainly bipolar, and the polarization of the dual-polarized antenna is mainly +/-45 degrees. The quality of the performance of the radiating element directly affects the coverage and polarization diversity gain of the mobile communication system, thereby affecting the communication quality of the entire network. Therefore, a high-performance antenna can improve the communication quality and the performance of the whole communication system.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the ultra-wideband dual-polarized antenna with wide frequency band and good transmission and radiation performance is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an ultra wide band dual polarized antenna, includes the reflecting plate, is fixed in the connecting seat on the reflecting plate and the dipole radiating element that is connected with the connecting seat, dipole radiating element establish 4 of connecting seat circumference equipartition, every dipole radiating element includes balun, oscillator arm, balun and connecting seat fixed connection, the oscillator arm establish to two about the balun symmetry, the one end and the balun of oscillator arm are fixed, the other end is inwards bent and is bent downwards again, the part of bending downwards is the loading section, balun on parallel arrangement two supporters, the one end and the connecting seat of supporter are fixed mutually, the other end is connected with the oscillator arm.

Furthermore, the included angle between the oscillator arm and the balun is 45 degrees.

Furthermore, the section of the support body is T-shaped.

Furthermore, a cable welding groove is formed in the back of the supporting body, and a cable is welded in the cable welding groove.

Further, the heights of the 4 dipole radiating elements are in the same plane.

Furthermore, the section of the oscillator arm is a quadrangle or other polygons.

Furthermore, the cross section of the loading section is circular, quadrilateral or other polygons.

Furthermore, the symmetrical oscillator radiating unit and the connecting seat are integrally formed by die casting.

Furthermore, the dipole radiation unit and the support body are made of conductor materials.

The utility model discloses an ultra wide band dual polarized antenna, its beneficial effect is: the frequency band is wide, the efficiency is high, particularly, the formed antenna has stable structure and good transmission performance and radiation performance, and the voltage standing wave ratio is less than or equal to 1.35 in the frequency band 698 plus 960 MHz.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic front structural view of the symmetrical array radiating unit of the present invention;

fig. 3 is a schematic back structure diagram of the symmetrical array radiating unit of the present invention;

FIG. 4 is a schematic view of a connection structure of a cable and a balun;

FIG. 5 is a schematic view of the back of FIG. 4;

FIG. 6 is a plot of +45 polarization voltage standing wave ratio;

FIG. 7 is a plot of-45 polarization voltage standing wave ratio;

in the figure, 1, a vibrator arm, 2, a connecting seat, 3, a reflecting plate, 4, a supporting body, 5, a balun and 6 are arranged in a cable.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The ultra-wideband dual-polarized antenna comprises a reflecting plate 3, a connecting seat 2 fixed on the reflecting plate 3 and dipole radiation units connected with the connecting seat 2, wherein the dipole radiation units are 4 symmetrically distributed on the circumference of the connecting seat 2, each dipole radiation unit comprises a balun 5 and a dipole arm 1, the balun 5 is fixedly connected with the connecting seat 2, the dipole arms 1 are two symmetrical about the balun 5, one end of the dipole arm 1 is fixed with the balun 5, the other end of the dipole arm 1 is bent inwards and then bent downwards, the part bent downwards is a loading section, the balun 5 is provided with two supporting bodies 4 in parallel, one end of each supporting body 4 is fixed with the connecting seat 2, and the other end of each supporting body is connected with the dipole arm 1.

The included angle between the oscillator arm 1 and the balun 5 is 45 degrees.

The section of the support body 4 is T-shaped.

The back of the supporting body 4 is provided with a cable welding groove, and a cable 6 is welded in the cable welding groove.

The heights of the 4 dipole radiating elements are in the same plane.

The section of the oscillator arm 1 is quadrilateral or other polygons.

The section of the loading section is circular, quadrilateral or other polygons.

The symmetrical oscillator radiating unit and the connecting seat 2 are integrally formed by die casting.

The dipole radiation unit and the support body 4 are made of conductor materials.

The utility model discloses an ultra wide band dual polarized antenna has the working frequency width, efficient characteristics. The antenna structure formed by the antenna is stable, so that the antenna has good circuit performance and radiation performance. FIGS. 6 and 7 are graphs of voltage standing wave ratio of + 45/45 polarization, and the voltage standing wave ratio is less than or equal to 1.35 in the frequency band 698 and 960 MHz.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An ultra-wideband dual-polarized antenna is characterized in that: the novel vibration isolator comprises a reflecting plate (3), a connecting seat (2) fixed on the reflecting plate (3) and symmetrical vibrator radiation units connected with the connecting seat (2), wherein the symmetrical vibrator radiation units are 4 in circumferential uniform distribution of the connecting seat (2), each symmetrical vibrator radiation unit comprises a balun (5) and a vibrator arm (1), the baluns (5) are fixedly connected with the connecting seat (2), the vibrator arms (1) are two symmetrical relative to the baluns (5), one end of each vibrator arm (1) is fixed with the balun (5), the other end of each vibrator arm is bent inwards and then bent downwards, the part bent downwards is a loading section, two supporting bodies (4) are arranged on the baluns (5) in parallel, one end of each supporting body (4) is fixed with the connecting seat (2), the other end of each supporting body is connected with the vibrator arm (1), and the back of each supporting body (4) is provided with a cable welding groove, and a cable (6) is welded in the cable welding groove.

2. An ultra-wideband dual polarized antenna as claimed in claim 1, wherein: the included angle between the vibrator arm (1) and the balun (5) is 45 degrees.

3. An ultra-wideband dual polarized antenna as claimed in claim 1, wherein: the section of the support body (4) is T-shaped.

4. An ultra-wideband dual polarized antenna as claimed in claim 1, wherein: the heights of the 4 dipole radiating elements are in the same plane.

5. An ultra-wideband dual polarized antenna as claimed in claim 1, wherein: the section of the vibrator arm (1) is quadrilateral or other polygons.

6. An ultra-wideband dual polarized antenna as claimed in claim 1, wherein: the section of the loading section is circular, quadrilateral or other polygons.

7. An ultra-wideband dual polarized antenna as claimed in claim 1, wherein: the symmetrical oscillator radiating unit and the connecting seat (2) are integrally formed by die casting.

8. An ultra-wideband dual polarized antenna as claimed in claim 1, wherein: the dipole radiation unit and the support body (4) are made of conductor materials.