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One-sixteenth-wavelength ultra-low-profile dual-polarized oscillator unit and base station antenna

A dipole antenna, dual-polarization technology, applied in the field of antennas and communications, can solve the problems of complexity, difficulty in realization, complex realization form and assembly process, and achieves the improvement of cross-polarization ratio, enhanced coupling, and improved isolation. Effect

Inactive Publication Date: 2017-08-18
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main disadvantage of existing miniaturized base station antennas is that the implementation form and assembly process are complex, and metal die-casting vibrators are mostly used for implementation, which requires a complex feed network, such as the need to use 4 coaxial cables to achieve feed
Even if the broadband antenna realized by the PCB printing process, it is difficult to achieve broadband (690-960MHz or 1710- 2700MHz), the electrical performance index meets the requirements of the base station antenna industry standard
However, the ultra-low profile dual-polarized base station antenna with one-sixteenth wavelength has not been reported yet.

Method used

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  • One-sixteenth-wavelength ultra-low-profile dual-polarized oscillator unit and base station antenna
  • One-sixteenth-wavelength ultra-low-profile dual-polarized oscillator unit and base station antenna
  • One-sixteenth-wavelength ultra-low-profile dual-polarized oscillator unit and base station antenna

Examples

Experimental program
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Effect test

Embodiment 1

[0052] refer to Figure 1-8 , the present embodiment provides a dual-polarization vibrator unit, including a vibrator assembly 1 and a balun support part, and the balun support part is arranged below the vibrator assembly 1 and is vertically connected to each other.

[0053] The vibrator assembly 1 includes a dielectric substrate 101, four dipole antenna arms 102-105 are arranged on the front side of the dielectric substrate 101 (ie, the side facing away from the balun support part), and four metal strips 110 are arranged on the back side. Specifically, the dielectric substrate 101 can be made of a PCB (printed circuit board), the dipole antenna arms 102-105 are directly printed on the upper surface of the dielectric substrate 101, and the metal strip 110 is directly printed on the dielectric substrate 101. In the embodiment, the dipole antenna arm and the metal strip can specifically be a printed metal copper layer.

[0054] In this embodiment, four dipole antenna arms form ...

Embodiment 2

[0069] refer to Figure 9 , this embodiment is a modification made on the basis of Embodiment 1.

[0070]Specifically, in this embodiment, the two ends of the four metal strips 110a respectively extend below the opening ends of the adjacent dipole antenna arms, and are connected to each other to form a rectangular frame. Appropriate adjustment of the size parameters can achieve The effect of the metal strip in Example 1.

Embodiment 3

[0072] refer to Figure 10 , this embodiment is a modification made on the basis of embodiment 1 or 2.

[0073] Specifically, in this embodiment, the dipole antenna arm is in the shape of an arc petal, and the effect of the dipole antenna arm shown in Embodiment 1 can be achieved by properly adjusting the dimension parameters.

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Abstract

The invention provides a one-sixteenth-wavelength ultra-low-profile dual-polarized oscillator unit and a base station antenna including the same. The dual-polarized oscillator unit comprises an oscillator assembly and a balun support part for feeding of the oscillator assembly. The oscillator assembly consists of a dielectric substrate and a radiation sheet arranged at the dielectric substrate. The radiation sheet includes two pairs of dipole antenna arms and four metal straps. The two pairs of dipole antenna arms are arranged at the front side of the dielectric substrate in a positive-negative 45-degree orthogonal manner; one end, approaching the orthogonal center, of each dipole antenna arm is a feed end; and a terminal, far away from the orthogonal center, of each dipole antenna arm is provided with a protruding branch extending to one side of the adjacent dipole antenna. The four metal straps are distributed at the back side of the dielectric substrate and are located below the adjacent dipole antenna arms respectively; the metal straps have the same projection overlapped areas at each protruding branch; and the protruding branches and the metal straps are coupled to form a current path.

Description

technical field [0001] The invention relates to the technical field of antennas and communications, in particular to a one-sixteenth wavelength ultra-low profile dual-polarized vibrator unit and a base station antenna. Background technique [0002] The base station antenna is the electrical bridge between the user terminal and the base station in the air in the mobile communication system. It is the most critical component in the entire antenna feeder system. The quality of the base station antenna directly affects the communication quality. With the development of communication technology, the location and layout of base stations are becoming more and more difficult, and the cells are becoming denser. Therefore, the miniaturization of base station antennas is imminent. [0003] The main disadvantage of existing miniaturized base station antennas is that the implementation form and assembly process are complicated, and metal die-casting vibrators are mostly used for impleme...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q9/16H01Q19/10
CPCH01Q1/38H01Q1/50H01Q1/521H01Q9/16H01Q19/108
Inventor 张凯
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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