Triple-Band Antenna Using Vivaldi DGS and SIW Structure for 802.11ax/be/bd Devices in MANETs

In the era of IoE (Internet of Everything), Mobile ad hoc Networks (MANETs) have attracted much attention by providing flexible network functions without an existing fixed structure. However, it needs new technology standards with high requirements for bandwidth to support a high data rate. In this study, we propose a triple-band antenna model that uses a Defected Ground Structure (DGS) that combines three rectangular and a novel shape based on the Vivaldi antenna to create multi-band operation. Adding the Substrate Integrated Waveguide structure (SIW), the proposed Vivaldi DGS antenna can prevent the radiation leakage of the electric field. Thus, there is an improvement in the radiation efficiency and the gain of the antenna on all operating bands. With resonant frequencies of 2.4GHz, 5GHz, and 5.9GHz, the proposed antenna can support MANET devices that are based on advanced wireless standards such as 802.11ax, be, bd,...