基于CSRR 改进的双陷波超宽带天线

针对超宽带系统易受窄带信号干扰的问题,提出了一种基于互补金属开口谐振环(CSRR)改进的双陷波超宽带缝隙天线。在现有文献中,单个CSRR只能实现单陷波功能,要想增加陷波频段,只能通过增加CSRR个数的方法来实现,这就增加了设计的复杂性。通过天线辐射贴片上的表面电流分布图分析了CSRR内外环与两个陷波频段的对应关系。对所设计的超宽带天线进行了制作和测量,实测结果与仿真结果吻合较好,证明了该设计方法的正确性。

An Improved Dual Band Notched UWB Antenna Based on CSRR

An ultra wideband slot antenna with dual band notched characteristics improved by complementary splitring resonator (CSRR) is proposed due to that UWB system is easy to be interfered with the narrow band signals. In the published literatures, a single CSRR can achieve only one notch band, two or more CSRRs are required to increase other notch bands, which increases the complexity of the design. The corresponding relations between the inner and outer rings of CSRR and the two notch bands were analyzed by means of the surface current distributions on the radiation patch. The proposed antenna was fabricated and measured, it is in good agreement between simulations and measurements, which verify the correction of the design