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Low-interference unit of base station antenna

A base station antenna, low-interference technology, applied in the direction of antenna, antenna coupling, antenna components, etc., can solve the problems of reducing the size of the antenna, large mutual interference between high and low frequencies, and reducing the emission of high-frequency signals, so as to reduce the size of the antenna and reduce the occupation. space, the effect of reducing the volume

Pending Publication Date: 2021-02-23
GUANGDONG SHENGLU TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the base station antenna unit provided by the present invention, by adopting the design of the choke sleeve, the transmission of high-frequency signals can be reduced, the problem of large mutual interference between high and low frequencies can be solved, and the volume of the antenna can be reduced accordingly without affecting the working effect

Method used

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  • Low-interference unit of base station antenna
  • Low-interference unit of base station antenna
  • Low-interference unit of base station antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, with reference to figure 2 , the base 100 is fixed on the upper side of the reflector. There are two microstrip supporting PCBs 200 , specifically, the two microstrip supporting PCBs 200 are spliced ​​into a cross shape. There are four dipole arms 300 , facing the front side, the left side, the back side and the right side of the antenna unit respectively. Full-wave dipoles are distributed on the vibrator arm 300 .

Embodiment 2

[0024] Embodiment 2, Microstrip Support The "microstrip" of the PCB 200 refers to the conductive strip separated from the ground plane by the dielectric layer on the printed circuit board. refer to image 3 , the front of the microstrip support PCB200 is provided with a feed coupling line conversion circuit 210, referring to Figure 4 , the back of the microstrip support PCB 200 is provided with a feed circuit 220 , and the height of the feed coupling line conversion circuit 210 is less than 1 / 2 of the distance between the vibrator arm 300 and the base 100 . Both the feed coupling line conversion circuit 210 and the feed circuit 220 are microstrip circuits. The height adjustment of the feeding coupling line conversion circuit 210 can reduce the reflection and coupling of high-frequency signals, and suppress the high-frequency induced current on the feeding sheet.

[0025] In this embodiment, optionally, the feed coupling line conversion circuit 210 includes a microstrip balu...

Embodiment 3

[0026] Embodiment 3, with reference to figure 2 , A sleeve fixing ring 500 is disposed between the choke sleeve 400 and the vibrator arm 300 . The sleeve fixing ring 500 is set on the vibrator arm 300, and then the choke sleeve 400 is set on the sleeve fixing ring 500, so as to realize the fixing of the choke sleeve 400 and ensure the connection between the choke sleeve 400 and the vibrator arm 300. There is no direct contact, and there is enough space between the choke sleeve 400 and the dipole arm 300 to ensure the normal operation of the antenna.

[0027] In this embodiment, optionally, the vibrator arm 300 is a column structure.

[0028] In this embodiment, optionally, the sleeve fixing ring 500 is a C-shaped ring. Optionally, the sleeve fixing ring 500 is embedded with PTFE medium. Optionally, the value range of the ratio of the outer diameter of the vibrator arm 300 to the inner diameter of the choke sleeve 400 is Optionally, the ratio of the outer diameter of the ...

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Abstract

The invention discloses a low-interference unit of a base station antenna. Thelow-interference unit comprises a base, a microstrip support PCB is arranged on the base, a vibrator arm extending horizontally is arranged at the upper end of the microstrip support PCB, and a choke sleeve is arranged on the vibrator arm. By adopting the choke sleeve design, the emission of high-frequency signals can bereduced, the problem of large mutual interference of high and low frequencies is solved, and the size of the antenna is correspondingly reduced without influencing the working effect.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a low-interference unit suitable for base station antennas. Background technique [0002] With the continuous development of 5G mobile communication technology, the erection density of base station antennas is getting higher and higher. However, due to the scarcity of base station site resources, 2G / 3G / 4G / 5G shared site solutions are widely used, and currently more The specific solution is that 2G / 3G / 4G antennas share a reflective surface, and 5G antennas use a reflective surface to reduce the demand for base stations. [0003] However, there is a problem that the space occupied by the antenna is too large. The usual domestic design idea for multi-frequency antennas is to separate the high-frequency and low-frequency oscillators to avoid the negative impact of the low-frequency unit on the high-frequency unit, such as the commonly used low-frequency bowl-shaped oscillator. Obv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q1/36H01Q1/50H01Q1/52H01Q5/10H01Q5/307
CPCH01Q1/36H01Q1/50H01Q1/521H01Q1/246H01Q5/10H01Q5/307
Inventor 王敏强叶桦杨华胡轶张辉方雄波
Owner GUANGDONG SHENGLU TELECOMM TECH
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