光学棒天线的特殊辐射方向图
The extraordinary radiation pattern of an optical rod antenna
摘要：
我们研究了一个光学棒天线的辐射方向图，发现它有许多特点相比，其传统的无线电波等效。在定义了一个参数Λ = λeff /λ（杆状天线的有效波长与入射波长的比值）后，我们发现Λ对辐射方向图有很大的影响。即使具有更高谐振阶的辐射图案也没有旁瓣并且导致更尖锐的方向性，这在改善光学天线的方向性方面提供了新的设计灵活性。
英文摘要：
We investigated the radiation pattern of an optical rod antenna and found that it had many features compared with its conventional radio-wave equivalents. After defining a parameter Λ = λeff /λ, which was the ratio of the effective wavelength of the rod antenna to the incident wavelength, we found that Λ had a great influence on the radiation pattern. Even the radiation pattern with a higher resonant order is without side lobes and results in a sharper directivity, which provides new design flexibilities in improving the directivities of the optical antennas.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
