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本文提出了一种新型紧凑的具有双陷波特性的印刷超宽带天线。天线采用微带传输线馈电,并通过圆形与矩形的混合结构辐射单元和带有矩形开槽结构的地板来实现天线的超宽带特性,工作带宽覆盖UWB频率范围。通过地板上两个对称的J形开槽和微带馈线两侧对称添加的线型结构单元来实现双陷波特性,两个陷波频段刚好覆盖了3.5GHz的WIMAX频段标准和5.2/5.8GHz的WLAN频段标准。同时,该天线在工作频带范围内具有良好的辐射特性,符合超宽带通信的使用标准。
This paper presents a new compact UWB antenna with double notch characteristics. The antenna uses the microstrip transmission line feed and the ultra-wideband characteristics of the antenna are achieved by a combination of circular and rectangular hybrid structure radiating elements and a floor with a rectangular slotted structure that covers the UWB frequency range. The double notch feature is achieved by two symmetrical J-shaped slots on the floor and symmetrically added linear elements on both sides of the microstrip feed, which covers just the 3.5 GHz WIMAX band standard and 5.2 / 5.8 GHz WLAN band standard. At the same time, the antenna has good radiation characteristics in the working frequency range, in line with the use of ultra-wideband communications standards.