CN-224232920-U - Command machine antenna

CN224232920UCN 224232920 UCN224232920 UCN 224232920UCN-224232920-U

Abstract

The utility model provides a director antenna which comprises a shell, a first antenna unit, a second antenna unit and a balun component, wherein an accommodating space is formed in the shell, the first antenna unit, the second antenna unit and the balun component are all located in the accommodating space, one end, far away from the first antenna unit, of the second antenna unit is provided with at least one group of folded oscillators, the balun component is electrically connected with the folded oscillators, and the folded oscillators are bent towards the balun component and form an included angle with the balun component. According to the utility model, the folded oscillator is arranged on the second antenna unit, and the balun component is electrically connected with the folded oscillator, so that the impedance matching of the antenna is optimized, the working bandwidth of the antenna is effectively widened, and the antenna can better meet the multi-band communication requirement. The folded vibrator is bent towards the balun component and forms an included angle with the balun component, so that the radiation pattern of the antenna is improved, the directivity and low elevation gain of the antenna are enhanced, and more stable signal transmission at a longer distance can be realized.

Inventors

DENG WENXIONG
Ma Hailiu
LI KONGYUAN
ZHANG YU

Assignees

深圳市斯凯互联卫星技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250428

Claims (10)

1. The director antenna is characterized by comprising a shell, a first antenna unit, a second antenna unit and a balun component, wherein an accommodating space is formed in the shell, and the first antenna unit, the second antenna unit and the balun component are all positioned in the accommodating space; The antenna comprises a first antenna unit, a second antenna unit, a balun component and at least one pair of folded vibrators, wherein the folded vibrators are arranged at one end, far away from the first antenna unit, of the second antenna unit, the balun component is electrically connected with the folded vibrators, and the folded vibrators are bent towards the balun component and form an included angle with the balun component.
2. The conductor antenna of claim 1, wherein the balun assembly comprises an inner conductor and an outer conductor, the inner conductor is wholly or partially located inside the outer conductor, and the inner conductor and the outer conductor are respectively electrically connected to different folded oscillators to realize circular polarization.
3. A director antenna according to claim 1, wherein said second antenna element is provided with two sets of said folded elements, said two sets of folded elements being arranged crosswise; Each group of folded oscillators comprises a long arm and a short arm, and the left-hand circular polarization or right-hand circular polarization radiation of the second antenna unit can be realized by adjusting the arrangement sequence of the long arm and the short arm in the corresponding group of folded oscillators.
4. A director antenna according to claim 3, characterised in that the ratio of the length of said long arm to the length of said short arm is in the range 1-1.5.
5. A director antenna according to any of the claims 1-4, characterised in that said included angle is in the range of 15-85 degrees.
6. A director antenna according to claim 1, wherein said first antenna element comprises at least two layers of antenna portions, the antenna portions of different layers corresponding to different operating frequencies, the operating frequencies of the antenna portions of each layer increasing in a direction from said first antenna element to said second antenna element.
7. A director antenna according to claim 1, further comprising a mounting portion, said mounting portion being located in said receiving space and being connected to said first antenna element on one side and to said housing on the other side; And a straight line formed by the extending direction of the side wall of the mounting part and a plane where the bottom of the shell is positioned form an inclined angle, and the range of the inclined angle comprises 120-160 degrees.
8. A director antenna according to claim 1, wherein said housing comprises a cover and a base, said cover being removably connected to said base, said cover and said base enclosing to form said receiving space.
9. A director antenna according to claim 8, wherein said base is provided with at least one protrusion.
10. A director antenna according to claim 1, wherein said housing is provided with at least one external interface for connection to an external device.

Description

Command machine antenna Technical Field The utility model relates to the technical field of antenna devices, in particular to a director antenna. Background At the moment of rapid development of wireless communication technology, director antennas are taken as key components in a communication system, and the performance quality of the director antennas directly affects the communication quality and efficiency. In the field of wireless communication, especially in the fields of satellite communication, short wave communication, etc., low elevation communication is a crucial application direction. For example, in satellite communications, when a director needs to establish a stable communications link with a low orbit satellite, the antenna needs to have good signal receiving and transmitting capabilities in the low elevation direction (usually the direction in which the antenna makes a small angle with the horizontal plane) due to the relatively low orbit position of the satellite. However, the conventional director antenna has a problem of insufficient gain in a low elevation direction, and is difficult to meet increasing communication demands. Disclosure of utility model Aiming at the defects in the prior art, the utility model provides a director antenna, which comprises the following specific schemes: The director antenna comprises a shell, a first antenna unit, a second antenna unit and a balun component, wherein an accommodating space is formed in the shell, and the first antenna unit, the second antenna unit and the balun component are all positioned in the accommodating space; The antenna comprises a first antenna unit, a second antenna unit, a balun component and at least one pair of folded vibrators, wherein the folded vibrators are arranged at one end, far away from the first antenna unit, of the second antenna unit, the balun component is electrically connected with the folded vibrators, and the folded vibrators are bent towards the balun component and form an included angle with the balun component. In an alternative embodiment, the balun component comprises an inner conductor and an outer conductor, wherein the inner conductor is wholly or partially positioned inside the outer conductor, and the inner conductor and the outer conductor are respectively and electrically connected with different folded vibrators so as to realize circular polarization. In an alternative embodiment, the second antenna unit is provided with two sets of folded oscillators, and the two sets of folded oscillators are arranged in a crossing manner; Each group of folded oscillators comprises a long arm and a short arm, and the left-hand circular polarization or right-hand circular polarization radiation of the second antenna unit can be realized by adjusting the arrangement sequence of the long arm and the short arm in the corresponding group of folded oscillators. In an alternative embodiment, the ratio of the long arm length to the short arm length ranges from 1 to 1.5. In an alternative embodiment, the included angle is in the range of 15 degrees to 85 degrees. In an alternative embodiment, the first antenna unit includes at least two layers of antenna portions, where the antenna portions of different layers correspond to different operating frequencies, and the operating frequencies of the antenna portions of each layer gradually increase along a direction from the first antenna unit to the second antenna unit. In an alternative embodiment, the director antenna further comprises a mounting part, wherein the mounting part is positioned in the accommodating space, one side of the mounting part is connected with the first antenna unit, and the other side of the mounting part is connected with the shell; And a straight line formed by the extending direction of the side wall of the mounting part and a plane where the bottom of the shell is positioned form an inclined angle, and the range of the inclined angle comprises 120-160 degrees. In an alternative embodiment, the housing includes a cover and a base, the cover is detachably connected with the base, and the cover and the base enclose the accommodating space. In an alternative embodiment, the base is provided with at least one protrusion. In an alternative embodiment, the housing is provided with at least one external interface for connecting to an external device. The antenna has the beneficial effects that at least one group of folded vibrators are arranged at one end, far away from the first antenna unit, of the second antenna unit, and the folded vibrators are electrically connected by utilizing the balun component, so that the impedance matching of the antenna is optimized, the working bandwidth of the antenna is effectively widened, the antenna can better adapt to the multi-band communication requirement, and the flexibility and the reliability of communication are improved. The folded vibrator is bent towards the balun component and forms an included angle with