| 一种展宽波导裂缝天线带宽的新方法 |
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| 作者姓名： | 张亚飞 吕晓德 |
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| 作者单位： | 1、中国科学院电子学研究所，北京 100080；
2、中国科学院研究生院，北京 100039 |
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| 摘 要： | 辐射缝隙导纳及波导导内波长的频率特性，是影响裂缝天线带宽的主要因素。本文以改善这两个参数的频率特性为出发点，提出了一种展宽波导裂缝天线带宽的新方法，即用脊波导代替矩形波导作为辐射波导。仿真分析表明脊波导裂缝阵列的带宽有较大的改善，这与理论分析的结果是一致的。本文的研究成果为展宽波导裂缝天线的带宽提供了一个新的思路。
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| 关 键 词： | 裂缝天线 脊波导 带宽 驻波比 方向图 |
A Novel Method to Improve the Bandwidth of Waveguide Slot Array Antenna |
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| Authors: | ZHANG Ya-Fei LV Xiao-De |
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| Institution: | 1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China;2. Graduate school, Chinese Academy of Sciences, Beijing 100039, China ; |
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| Abstract: | The frequency characteristic of the admittance of radiating slot and the waveguide wavelength of radiating waveguide is the main factor that influences the bandwidth of slot array antenna. Based on the idea of improving the frequency characteristic of the two parameters above, a novel method of improving the bandwidth of slot array antenna is presented in this paper, which uses a ridged waveguide instead of a rectangular waveguide as the radiating waveguide. The simulation analysis has indicated that the bandwidth of ridged waveguide slot array has been greatly improved, and it is consistent with the result of thoery. The result of this paper brings forword a new idea for improving the bandwidth of slot array antenna. |
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| Keywords: | slot array antenna ridge waveguide bandwidth VSWR(Voltage Standing-Wave Ratio) radiation pattern |
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