Design of 2.4 GHz one-sided directional slot antenna with the main board

This paper presents a design of one-sided directional slot antenna for 2.4 GHz band application. The antenna element is composed of a top metal, a dielectric substrate, and a bottom floating metal layer. The antenna element is connected to the coplanar waveguide (CPW) feed line. The simulation and measurement results of the reflection coefficient (S 11) and antenna gain are presented in this paper. The peak gain of the proposed antenna is approximately −4 dB at around 2.4 GHz.