In this article a microstrip line fed circular fractal curve loaded circular shaped patch antenna is presented for Super Wide Band (SWB) operation in THz frequency domain. Impedance matching over the entire operating frequency band is obtained by etching a circular shaped slot from the radiating patch and using a circular shaped partial ground plane. The fractal structure is suitably embedded with the radiating patch so that the lower edge frequency of operation of the proposed design is sufficiently reduced and the antenna can operate over the entire spectrum of 0.1 THz to 10 THz (with ratio impedance bandwidth of 100:1) for S₁₁≤-10 dB. A relatively stable radiation pattern with acceptable value of gain are obtained over the entire operation band. The designed antenna has advantage of highest ratio impedance bandwidth with smallest physical dimension over previously reported SWB antenna structures for THz applications.

在本文中，提出了一种微带线馈电的圆形分形曲线加载圆形贴片天线，用于在THz频域中进行超宽带（SWB）操作。在整个工作频带上的阻抗匹配是通过从辐射贴片蚀刻出一个圆形缝隙并使用一个圆形的局部接地平面来获得的。分形结构适当地嵌入了辐射贴片，以使所提出设计的工作的较低边缘频率充分降低，并且天线可以在0.1 THz至10 THz的整个频谱上工作（比率阻抗带宽为100：1）对于S ₁₁≤-10dB。在整个工作频带上获得具有可接受的增益值的相对稳定的辐射图。与先前报道的用于太赫兹应用的SWB天线结构相比，设计的天线具有最高的阻抗阻抗带宽和最小的物理尺寸优势。