Ultra-wideband dual-polarized antenna oscillator employing fractal hollow design

Abstract

The invention provides an ultra-wideband dual-polarized antenna oscillator employing a fractal hollow design. The ultra-wideband dual-polarized antenna oscillator comprises a reflector plate and an integrally molded main oscillator body, wherein the main oscillator body comprises an oscillator radiation element and a balun bracket; the oscillator radiation element comprises four oscillator radiation sheets; each oscillator radiation sheet is in a diamond-type plane structure; the four oscillator radiation sheets are arranged around the top points as the centers in a coplanar manner; a gap is reserved between the adjacent oscillator radiation sheets; the fractal hollow design is adopted for each oscillator radiation sheet; and the oscillator radiation element is supported by the balun bracket. According to the ultra-wideband dual-polarized antenna oscillator, through the arrangement of the oscillator radiation sheets in the diamond-type plane structure, the voltage standing wave ratio (VSWR) when the ultra-wideband dual-polarized antenna oscillator works within a frequency range of 680-960MHz is smaller than or equal to 1.4; the antenna with a relatively uniform beam width within the width 3dB in the horizontal plane can be realized; the overall oscillator is integrally fabricated and molded by a die-casting technology; and the ultra-wideband dual-polarized antenna oscillator has the characteristics of attractive appearance, small size, low profile, stable structure property and good consistency, and meets the development requirements of mobile communication at present.

Description

technical field [0001] The invention relates to a mobile communication base station antenna, in particular to a fractal hollow design ultra-wideband dual-polarization antenna vibrator. Background technique [0002] FDD-LTE is the long-term evolution of communication, a global standard, and a trend of communication development and evolution. It improves and enhances the air access technology of information, and has high data transmission rate, packet transmission, low delay, wide coverage and downward Compatibility and other advantages, but because the existing FDD-LTE antenna elements are mostly narrow-band bandwidth (790-870MHz / 806-960MHz), this narrow-band bandwidth is difficult to meet the current communication base station construction and multi-system establishment and signal coverage requirements The demand and the cost are extremely high, so the development of FDD-LTE ultra-wideband dual-polarized antennas is the focus of current antenna research and development, and ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the frequency bandwidth will be relatively wider when the frequency is higher, and the bandwidth of the frequency will become narrower and narrower as the frequency decreases, and it is impossible to realize broadband and ultra-wideband in the low frequency band. Ultra-wideband fractal hollow design for ultra-wideband dual-polarization antenna elements in low-frequency bands

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