Ultra -wideband antenna based on C -CRLH cycle unit

The utility model provides a based on C the ultra -wideband antenna of CRLH cycle unit, including a plurality of C that are periodic array arrangement CRLH cycle unit, C CRLH cycle unit includes thefirst metal layer, medium base plate layer and second metal level, the first metal layer and second metal level are attached on the upper and lower surface on medium base plate layer respectively, thefirst metal layer is the sheetmetal of rectangle bars trellis form, four the spuare metal pieces of second metal level for being array arrangement are possessed interval and interval and are equalledbetween the adjacent spuare metal piece in four spuare metal pieces. The utility model provides an is the complementary structure of CRLH cycle unit C CRLH cycle unit, wherein " C " 3 expression complementations, utilize complementary cycle unit C CRLH constitutes the antenna to reach purpose miniaturized and the wide antenna bandwidth of exhibition, satisfied application demands such as broadband communication, broadband r