Sierpinski fractal antenna for internet of things applications

Internet of Things is a new classification of Internet application which makes the information be common on a global scale. A major requirement for sharing is the transmitting and receiving of data or information which is done by antennas. Since large data on multiple frequencies needs to be shared, multiband antenna is a major requirement. In a multiband antennas design, different bands are active for different frequency ranges and bands. This property can be fulfilled by adding slots in patch, defected ground slot and by fractal in antennas. In the proposed paper fractal design is used because of its advantages like compact size, wideband, frequency independent, and low mutual coupling. A coaxial fed antenna formed by a right-angled isosceles triangular with Sierpinski structure is presented. The antenna covers all the bands i.e. WLAN/GSM/LTE/WiMAX/UWB. It is suitable for internet of things devices with its multiband characters. The analysis is also done with different iterations, substrate materials and thickness. Parameters like return loss, gain, bandwidth and directivity of proposed structures are studied and analyzed. CST Microwave studio tool is used for simulation results. (C) 2017 Elsevier Ltd. All rights reserved.