Wideband Electromagnetic Field Vector Antenna Array Technique and Direction Finding Algorithm

Abstract

Wideband (UWB) technology has been widely used in ultra-wideband wireless communication, radar detection and other fields because of its advantages such as wide working frequency band, fast transmission rate and accurate positioning. This paper mainly studies the broadband electromagnetic field vector antenna array technology and direction finding algorithm. In this paper, the structure of a broadband resonant antenna unit is designed. The antenna unit adopts the form of printed antenna, which has both the advantages of planar antenna structure and wider bandwidth. For array antenna amplitude-phase error exists when the ideal direction, of the environment theory analyzes the mutual coupling and antenna array yuan border effect influence on beam shaper MUSIC algorithm, this paper proposes a anti-interference antenna phase characteristic difference of the calibration method of using 3 d electromagnetic simulation software HFSS, the mutual coupling matrix calculation, the amplitude-phase error correction, and has carried on the MATLAB simulation, the simulation results show that the method of direction finding pitching Angle error of less than 1, the direction finding azimuth error is less than 2, can be used for the beidou anti-interference antenna of direction finding.