Lin Qing-Chun, Zhu Fang-Ming, He Sai-Ling
State Key Laboratory of Modern Optical Instrumentation, Center of Optical and Electromagnetic Research, Zhejiang University, Hangzhou 310027, China.
J Zhejiang Univ Sci. 2004 Mar;5(3):269-73. doi: 10.1007/BF02841010.
A new photonic bandgap (PBG) cover for a patch antenna with a photonic bandgap substrate is introduced. The plane wave expansion method and the FDTD method were used to calculate such an antenna system. Numerical results for the input return loss, radiation pattern, surface wave, and the directivity of the antennas are presented. A comparison between the conventional patch antenna and the new PBG antenna is given. It is shown that the new PBG cover is very efficient for improving the radiation directivity. The physical reasons for the improvement are also given.
介绍了一种用于带有光子带隙衬底的贴片天线的新型光子带隙（PBG）覆盖层。采用平面波展开法和时域有限差分法来计算这样一个天线系统。给出了天线的输入回波损耗、辐射方向图、表面波和方向性的数值结果。对传统贴片天线和新型PBG天线进行了比较。结果表明，新型PBG覆盖层在提高辐射方向性方面非常有效。还给出了性能提高的物理原因。
