A miniaturized UWB monopole antenna with five-section ground plane slit

摘要

A practical miniaturized ultra-wideband monopole antenna with a five-section ground plane slit is proposed. The structure is a modification of a reference antenna designed with the two-section ground plane slit and featuring the footprint area of 216 mm(2). To reduce the antenna size, a ground plane modification was introduced in the form of a five-section slit below the feeding line. Furthermore, all geometry parameters of the structure were simultaneously optimized. The final design exhibits a small size of only 22.5 x 7.9 mm(2) with footprint of 178 mm(2) and good electrical and field characteristics. Experimental validation and comparisons with recently reported designs are also provided.