标题: | 38-GHz宽频多指向器印刷式八木天线设计 Design of A 38-GHz Wideband Printed Yagi Antenna with Multiple Directors |
作者: | 李彦璋 Yen-Chang Lee 钟世忠 Shyh-Jong Chung 电信工程研究所 |
关键字: | 八木;天线;印刷式;指向器;宽频;Yagi;antenna;printed;director;wideband |
公开日期: | 2001 |
摘要: | 本论文38GHz 研究宽频多指向器印刷式八木天线,并组合成一个十六元素的天线阵列。还有更进一步的讨论整单一天线的各种尺寸参数对天线辐射和输入阻抗的影响。这些参数包括指向器间的距离、指向器的长度、接地面宽度对辐射的影响,动偶极天线对频宽的影响。根据这些研究结果,可以将天线的辐射图腾最佳化。对于如何在各种不种介质板上设计出不同的八木天线,我们提出一套设计程序。根据这个设计程序,可以快速且简单的在不同的介质板上实现八木天线,且拥有不错的辐射特性。 完成的单一八木天线拥有11dBi的增益、28%优异的频宽、旁波束低于-13dB。而完成的八木天线阵列实现16dBi的增益、30%的频宽、3.8度的极窄半功率波束宽度。 This thesis designs a 38 GHz wideband printed Yagi antenna with multiple directors and a linear sixteen-element Yagi antenna array. The influences of antenna’s variety parameters on radiation pattern and input impedance have been discussed. These parameters include the inter-director spacing, director-length arrangement, the effect of truncated ground plane and the width of active dipole. Based on these research results, the antenna radiation pattern can be optimized. Finally, we offer a simplified design procedure to realize Yagi antennas on distinct substrates. By this procedure, Yagi antennas on distinct substrates can be fabricated quickly and easily and the finished antenna patterns are moderate. The single Yagi antenna achieves excellent performance, fairly high gain of 11 dBi, broad bandwidth of 28%, and low side-lobe level of –13 dB. The linear sixteen-element Yagi array owns a gain of 16 dB, bandwidth of 30%, and extreme narrow beamwidth of 3.8° |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#NT900435012 http://hdl.handle.net/11536/68884 |
显示于类别: | Thesis |