Ultra-wide band microstrip antenna for 4G applications

Abstract

Presently, there is an expanded activity for ultra-wideband (UWB) technology for use in a few present and future applications. UWB got an exceptional attention, particularly after the approval of utilizing the unlicensed band beginning from 3.1 to 10.6 GHz for commercial use. A compact ultra-wide band microstrip antenna is introduced in this paper. The antenna consists of dual elements each having a size of 24×24 mm∧2, while the total size is 58×24 mm2. A decoupling circuit is added to the design; afterwards the spacing between the elements is adjusted. The first element covers the range between 3.29 and 6.9 GHZ using the digital ground and the second antenna covers the frequency range from 8.76 GHz to 13.27 GHz using defective ground. This type of antenna is designed to be used for 4G applications. The antenna's structure and the parametric study, including the reflection coefficients, gain, coupling and decoupling, will be discussed further in this work. In addition to that comparison of similar UWB antennas is done.