Design and implementation of slotted metamaterial stacked microstrip patch antenna for broadband applications

Abstract The design of stacked patch antenna integrated with metamaterial for broadband applications to achieve appreciable gain, directivity and low return loss is presented in this article. It mainly focuses on optimization and easy adaptation in MMIC technology. The antenna is designed to carry out by combining two Microstrip patch antenna in a stack manner and Metamaterial is implemented by Complementary Split Ring Resonator (CSRR) technique on both side of the patch antenna and slots are introduced at four corners of the patch and adjacent to the metamaterial. The designed antenna is capable of maintaining its performance over wireless system at C band (4-8 GHz) frequency range. The substrate used is FR-4 with thickness of 0.8mm and permittivity) is 4.2. It is simulated using Advanced Design System (ADS) and it is resonated around 6 GHz. It yields a VSWR of about 1.014 (6.25 GHz), 1.022 (5.829 GHz) and 1.015 (6.522 GHz) under simulation and 1.25 (6.03 GHz), 1.119 (5.74 GHz) and 1.247 (5.36 GHz) in measurements respectively. Thus the antenna becomes a necessity for many applications in recent wireless communications such as RADAR and space applications.