| 相控阵天线时域有限差分计算中激励源分析 |
| |
| 引用本文： | 姜彦南,李思敏,曹卫平,姜兴,高喜,于新华. 相控阵天线时域有限差分计算中激励源分析[J]. 电波科学学报, 2011, 0(5): 894-898,1023 |
| |
| 作者姓名： | 姜彦南 李思敏 曹卫平 姜兴 高喜 于新华 |
| |
| 作者单位： | 桂林电子科技大学信息与通信学院;认知无线电与信息处理省部共建教育部重点实验室(桂林电子科技大学) |
| |
| 基金项目： | 国家自然科学基金项目(61001020,61071018);广西自然科学基金项目(2010GXNSFB013049,2011GXNSFB018064) |
| |
| 摘 要： | 在时域有限差分(FDTD)方法用于偶极阵列天线数值计算时,采用带有内电阻的缝隙馈电激励源模型,及选择自由度较大的调制高斯脉冲信号,来提高数值算法迭代计算的收敛速度;在各馈电单元的时域信号中通过引入合适时间延迟,实现对相应单元相位的控制。用二元相控阵列天线模型,验证了算法和程序是正确的;用六元相控圆形阵列天线,分析了该算法在实际相控阵天线问题分析中的应用。
|
| 关 键 词： | 时域有限差分方法 相控阵天线 收敛 时间延迟 |
Excitation source in FDTD method calculate phased array antenna |
| |
| JIANG Yan-nan LI Si-min CAO Wei-ping JIANG Xing GAO Xi YU Xin-hua. Excitation source in FDTD method calculate phased array antenna[J]. Chinese Journal of Radio Science, 2011, 0(5): 894-898,1023 |
| |
| Authors: | JIANG Yan-nan LI Si-min CAO Wei-ping JIANG Xing GAO Xi YU Xin-hua |
| |
| Affiliation: | JIANG Yan-nan LI Si-min CAO Wei-ping JIANG Xing GAO Xi YU Xin-hua (1.School of Information and Communication Engineering,Guilin University of Electronic Technology,Guilin Guangxi 541004,China;2.Key Laboratory of Cognitive Radio and Information Processing(Guilin University of Electronic Technology), Ministry of Education,Guilin Guangxi 541004,China) |
| |
| Abstract: | Excitation source model with an internal source resistance in the dipole feeding gap is applied in the phased array antenna calculated by finite difference-time domain(FDTD) method,and the modulation Gaussian pulse is also used,which can improve the convergence.The proper time delay introduced in the time-domain excitation signal can lead the needed phase to each feed cell.The result of a dyadic phased array antenna validates the algorithm and the grogram,and a six-cell circular phased array antenna illustrates the application in practice. |
| |
| Keywords: | FDTD phased array antenna convergence time delay |
| 本文献已被 CNKI 等数据库收录！ |
|
