A Novel Method to Improve the VSWR Bandwidth of Waveguide Slot Array Antenna

作者：XU Guo-bing · 发表于：Modern Radar · 年份：2012 · 研究领域：Microwave Engineering and Waveguides、Antenna Design and Analysis、Antenna Design and Optimization

The frequency characteristic of the admittance of radiation slot and the impedance of coupling slot is the main factor that influences the bandwidth of the slot array antenna.Based on the idea of improving the frequency characteristic of the whole array, a novel method of improving the VSWR bandwidth of the slot array antenna is presented in the paper,which selects a suitable admittance constant to reduce the influences of frequency.The simulation analysis has indicated that the VSWR bandwidth of the changed slot array has been improved,and it is consistent with the result of the theory.The result of this paper brings forward a new idea for improving the VSWR bandwidth of the slot array antenna.