4GHz频段天线罩加载圆形贴片天线FDTD分析

以时域有限差分法模拟了具有天线罩的圆形贴片天线的瞬态行为 ,应用理想匹配层吸收边界条件 ,对圆形贴片和同轴线的馈电部分采用网格共形技术 ,求解出的谐振频率与实验结果有极好的吻合 ,并进一步求解辐射方向图 。

Radiation Characteristics of Rectangular Patch Antennas with an Array of Pins

The patch antennas with an array of pins （pin array patch antennas） with excellent radiation characteristics are investigated for various substrate thicknesses. The radiation in the horizontal plane of a pin array patch antenna is very small compared to that of a conventional patch antenna. And the increase of forward radiation and the decrease of backward radiation of a pin array patch antenna are obtained than those conventional one＇s. Also the half-power beamwidth of E -plane radiation pattern of a pin array patch antenna is narrower compared to that of the conventional so that the directivity is improved.