Cross-shaped dual-polarized oscillator

Abstract

The invention belongs to the technical field of wireless communication base station antennas, in particular to a cross-shaped dual-polarized oscillator. The antenna comprises a cross-shaped radiationarm, a balun and feed sheets. The cross-shaped radiation arm comprises four V-shaped radiation assemblies which are not in contact with each other. Each V-shaped radiation assembly comprises two smallradiation arms which are perpendicular to each other, the small radiation arms are hollowed out from the center to form a loop groove, and an assembly outer frame close to the outer side and an assembly inner frame close to the inner side are arranged on the two sides of the loop groove respectively, so that the loop grooves of the two small radiation arms of each V-shaped radiation assembly arecommunicated; the balun comprises at least two cylinders which are independent from each other and penetrate through each other; the two feed sheets are L-shaped and comprise long parts and short parts which are perpendicular to each other; the Balun is fixed at the bottom of the cross-shaped radiation arm, so that the geometric center of the Balun coincides with the geometric center of the cross-shaped radiation arm, the long parts of the two feed sheets respectively penetrate through and are fixed in two of the cylinders, the long parts are not in contact with the inner walls of the cylinders, the short parts are upward, and the short parts of the two feed sheets are not in contact with each other.

Description

technical field [0001] The invention belongs to the technical field of wireless communication base station antennas, and in particular relates to a cross-shaped dual-polarization vibrator. Background technique [0002] In recent years, mobile communication technology has developed rapidly, and the working frequency bands of various communication systems are different. With the gradual development of mobile communication, the working frequency band of communication systems has also been expanded accordingly, so that the mobile communication system has a wider working bandwidth for the antenna frequency band. Requirements, and in order to reduce the cost of base station network construction, multi-port ultra-wideband base station antennas are increasingly favored by the market. [0003] The multi-port ultra-broadband antenna makes it possible for multiple systems to share sites and multiple systems to share antennas, which solves the problem of difficult site selection for ope...

AI Technical Summary

Problems solved by technology

At present, ordinary single-frequency antennas can no longer meet the needs of the market, so the design of multi-frequency ultra-wideband antennas has become an inevitable trend in future base station antenna research.

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