Authors : B. Premalatha, MVS Prasad and M.B.R. Murthy
Abstract: The rapid development in wireless technology has necessitatedcompact devices and these compact devices required miniature antennas for different applications. Many researchers carried out work to reduce size of antenna. There are different methods proposed by different researchers to reduce the size of the antenna without effecting the gain and bandwidth .The techniques used in the literature are using dielectric substrates with high permittivity, applying magneto inductive wave guide loading or using slots and notches on the patch of the antenna, embedding fractal slots but the simple method to reduce the size of the antenna is using Defective Ground Structure (DGS). In this study, two different Ultra Wide Band (UWB) monopole antennas are designed and their performance is compared by placing bevel slots on patch and without placing the bevel slots. Both the UWB Monopole antennas are operating in the frequency band of 2.4-12 GHz with band notching from (5.1-5.9 GHz) is designed. Performance evaluation of this antenna is carried out using HFSS software. The results are presented and discussed. The designed antenna with bevel slots on patch is fabricated and tested for return losses and VSWR and the results are compared.
B. Premalatha, MVS Prasad and M.B.R. Murthy, 2018. Compact Monopole Antenna with Band Notching Characteristics. Journal of Engineering and Applied Sciences, 13: 1794-1797.