Microstrip Antenna employing Square Metal Ring for Quasi-Millimeter-Wave Applications

Abstract

In recent years, development of various applications such as IoT and 5G has been carried out, and frequency tightness has occurred. Therefore, there is a demand for technological development beyond the quasi-millimeter wave band. we propose a microstrip antenna employing a square metal ring for quasi-millimeter wave applications. This antenna can improve and control absolute gain by using a square metal ring. It is clear that the gain can be controlled stepwise from 6.9 dBi to 9.5 dBi at 24GHz band by electromagnetic field analysis when the antenna employing square metal ring is configured to change the substrate thickness.