Dual-polarization indoor omni-directional ceiling antenna of long-term evolution mobile communication system

Abstract

The invention relates to a dual-polarization indoor omni-directional ceiling antenna of a long-term evolution mobile communication system, wherein a vertical polarization cone antenna and a three-element magnetic ring antenna are arranged on a chassis, and a horizontal polarization slot antenna is cylindrically arranged above the vertical polarization cone antenna; the vertical polarization cone antenna adopts cone transition of polarized waves to enable main resistance to gradually change to 50 omega to realize ultra wide band, wherein S11 is less than -14dB; the horizontal polarization antenna adopts longitudinal joints as an excitation source, and four longitudinal joints are distributed on the cylindrical surface at equal intervals; the three-element magnetic ring antenna is distributed in a three-ring manner at equal angle of 120 degrees, wherein the magnetic ring size 1+s+g is approximately equal to Lambda to form resonance shape, so that the three-element magnetic ring antenna has maximum driving radiation. The dual-polarization indoor omni-directional ceiling antenna is used for improving high-flow signal transmission efficiency and frequency spectrum utilization rate in four-generation mobile communication under the condition of not increasing the bandwidth. The dual-polarization indoor omni-directional ceiling antenna has dual-polarization and dual-fluidization functions, can generate dual-polarization gain which is improved by about 2dB compared with that of a single-polarization antenna, improves the indoor multipath fading phenomenon and increases a networking scheme for indoor coverage.

Description

technical field The invention belongs to the field of communication, and in particular relates to a dual-polarization indoor omnidirectional ceiling antenna used for multiple-input multiple-output (MIMO) multi-antenna technology in a long-term evolution (LTE) mobile communication system. Background technique In the context of the rapid evolution of mobile communication to 4G, faced with the serious shortage of spectrum resources and the surge of high-traffic services, the introduction of new technologies in supporting equipment such as antennas has been regarded as a key project by operators. Antennas are also facing the "four modernization requirements" of miniaturization, dual polarization, broadband and electrical modulation. In the post-3G era, to improve transmission efficiency and spectrum utilization without increasing bandwidth, the core technology of Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO) has won operators and ind...

AI Technical Summary

Problems solved by technology

The task of the present invention is to provide a dual-polarization indoor omnidirectional ceiling antenna for the long-term evolution (LTE) mobile communication system, which has the characteristics of ultra-wideband, high isolation, good roundness, small size, and high gain, and improves the LTE The high-flow signal transmission efficiency and spectrum utilization rate of the dual-polarization indoor omnidirectional ceiling antenna effectively solve the problem of uneven signal distribution and low gain of the traditional single-polarization indoor omnidirectional ceiling antenna