Investigations on the Radiation Characteristics of a CPW-Fed Yagi-Inspired Strip Monopole Antenna

The article presents simulation-based investigations on the reflection and radiation characteristics of a CPW-fed YagiUda radiator representing end-fire characteristics. The proposed radiator is working at 5.76GHz i.e. the WLAN band. The proposed structure has been developed systematically starting from the addition of a reflector to a monopole to enhance the gain. The proposed reflector backed Yagi-Uda structure has been modified to act as an end-fire array antenna. The modification has been achieved by addition of a director in front of the monopole radiator. Considerable gain has been achieved upon the addition of the director as compared with the case of the addition of the reflector only.