摘要
采用时域有限差分法模拟了具有覆盖层微带贴片天线的瞬态特性 ,为实现含多种介质复杂结构天线的分析应用理想匹配层吸收边界条件和网格共形技术模拟同轴线的馈电 ,求解出与实验结果有极好的吻合的谐振频率 ,并进一步求解辐射方向图 ,讨论了不同介质覆盖和空气隙对微带贴片天线谐振频率和辐射特性的影响 .
In order to analyze complicated antennas with several kinds of mediums, a microstrip patch antenna with superstrata is analyzed using FDTD method. A perfect matched layer technique is employed to form absorbing boundaries, and a contour path method to treat the feeding port of coaxial lines. Resonant frequency is calculated which is identical with the test result. Furthermore ,a radiation pattern for the antenna is predicted, and effects of different dielectric layers and air gaps on the antenna resonant frequencies and radiation characteristics are analyzed.
出处
《广东工业大学学报》
CAS
2001年第3期40-45,共6页
Journal of Guangdong University of Technology
基金
广东工业大学自选项目 (95 2 0 10 )
