Low-profile high-gain fractal miniature base station antenna

A small base station, high-gain technology, applied to antennas, antennas suitable for movable objects, electrical components, etc., can solve problems such as energy waste, low energy efficiency utilization, electromagnetic interference, etc., and achieve high effective radiated power ratio, High and efficient effect of back lobe suppression

Active Publication Date: 2015-11-11
GUANGDONG SHENGLU TELECOMM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of base station antennas, due to their low energy efficiency, not only causes a huge waste of energy, but also constitutes harmful electromagnetic interference, which is inconsistent with the development trend of energy-saving, high-efficiency, and green environmental protection of base stations in the future.

Method used

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  • Low-profile high-gain fractal miniature base station antenna
  • Low-profile high-gain fractal miniature base station antenna
  • Low-profile high-gain fractal miniature base station antenna

Examples

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Embodiment Construction

[0070] Such as Figure 2-Figure 11(c) As shown, the present invention is a low-profile high-gain fractal small base station antenna, which includes a radome 9, a reflector assembly 6, a base substrate 5, a metal partition array 7, a dielectric substrate 2 printed with an antenna vibrator 1 and The feeding coaxial feeder 8 connected to the antenna vibrator, the dielectric substrate 2 is fixed on the base substrate 5, the base substrate 5, and the metal partition array 7 are arranged on the reflector assembly 6; the antenna vibrator 1 includes left and right, up and down Symmetrical four-sheet units, two units on each opposite corner of the four-sheet units form a pair of dipoles, and the four-sheet units form a cross oscillator; each sheet unit is made using the second iteration I 2 The square von Koch fractal curves are connected end to end to form a Minkowski fractal ring, which is then filled as a plane piece, and a pair is constructed at the upper right or left corner of th...

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Abstract

The invention discloses a low-profile high-gain fractal miniature base station antenna. The antenna is characterized by comprising an antenna housing, a reflecting plate combination body, a substrate, a metal separator plate array, a medium substrate with an antenna oscillator printed thereon, and a feed coaxial feed line connected with the antenna oscillator. The antenna oscillator comprises four sheet type units which are laterally and vertically symmetrical. Two units of the four sheet type units along each diagonal line form a pair of dipoles. The four sheet type units form crossed dipoles. A Minkowski fractal loop is formed by making secondary iteration I2 square Von Koch fractal curves connected in a head-to-tail way and changed into a planar sheet through filling. A pair of lug type bodies with the diagonal line as the symmetric axis is formed on the right upper corner or the left upper corner of the fractal loop. The lug type bodies are further combined with the fractal loops to form the four sheet type units. The antenna provided in the invention achieves a low profile, makes the back lobe obviously suppressed and further makes the front-to-rear ratio and the cross polarization ratio obviously improved through a proper design of the fractal miniature base station antenna structure. High gain and high efficiency which cannot be achieved through a common crossed dipole are further achieved.

Description

technical field [0001] The invention relates to the technical field of cellular mobile communication base station antenna equipment, in particular to a low-profile high-gain fractal small base station antenna. Background technique [0002] The base station antenna is the air interface connecting the user and the network in the cellular mobile communication system, so it is one of the most critical components of the entire system, and its performance directly determines the communication quality. At present, base station antennas are divided into two categories according to the application occasions; one is outdoor large-scale macro base station antennas, which are characterized by wide frequency bandwidth, large number of array elements, high gain, precise beam forming, and large power capacity, suitable for large-scale, user Sparse occasion coverage; the other type is small base station antennas, which are characterized by narrow frequency bands, fewer array elements, lower...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/28H01Q19/10
Inventor 李道铁
Owner GUANGDONG SHENGLU TELECOMM TECH
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