An Ultra-Wideband Millimeter-wave Antenna using a Novel Pentagon Filling Technique

Abstract

A 5G ultra-wideband monopole antenna working in millimeter-wave spectrum is being proposed here. Operating band of the antenna is 24.42-40.29 GHz exhibiting an enormous bandwidth of 15.87 GHz. The bandwidth coverage has been achieved by structuring the antenna through a unique method of pentagon filling. Low loss 0.254 mm thick Rogers substrate was used to attain radiation efficiency of more than 95% and a peak gain of 4.86 dBi. The antenna is compact in size with dimensions of 8×7 mm2. The proposed antenna is deemed suitable for future 5G and millimeter-wave communications due to its attractive characteristics.