A coplanar pentagonal antenna for wireless applications

Investigation of a coplanar pentagonal antenna is presented in this paper. The antenna offers a bandwidth of 9.48 % at 2.53 GHz with a gain of 4.39 dBi. The antenna has an omnidirectional radiation pattern. The advantage of coplanar antenna is that active circuitry can be mounted easily making it applicable for Monolithic Microwave Integrated Circuit applications (MMIC). The results are compared with a Bow-Tie antenna with the same substrate at same frequency.