Miniaturized Dual-Band Monopole Antenna Design for Wireless Communications

This work carries a dual band monopole antenna design specially meant for wireless applications like Wireless Local Area Network (WLAN) and Worldwide Interoperability for Microwave Access (WiMax). The antenna proposed consists of a rectangular patch monopole in which a slot is cut inorder to obtain a dual band operation and size reduction. The antenna operates in two frequency bands which are 2.4 GHz and 5.1 GHz. These two bands are now widely used in wireless communications. The directivity of the antenna when operating at 2.4 GHz range is about 6.5779 dBi and at 5.1 GHz it showed a directivity of about 5.7191 dBi. Also, the VSWR of the proposed antenna is less than 1.5. The proposed antenna has a bandwidth of 245 MHz at 2.4 GHz and 685 MHz at 5.1 GHz. This miniaturized dual band monopole antenna proves to be an effective option for wireless devices to communicate with the outside world.