Design of A Dual-Band Rectangular MSA Using U, L, O and rectangular Slots on Metal Patch and Inverted L like DGS on Ground Plane

A miniaturized dual-band rectangular MSA (Microstrip Antenna) has been presented in this article. The miniaturization and two bands characteristics have been achieved by inserting U, L, O, and rectangular type slots on the metal rectangular patch and DGS (Defected-Ground-Structure) on the ground. Suggested MSA provides two bands, one range from 3.13-3.27 GHz with 3.2 GHz resonant frequency and 4.4% of bandwidth while the other one ranges from 4.93-5.08 GHz with resonant frequency of 5.0 GHz and 3% of bandwidth. The gain (simulated) at 3.0 GHz and 5.0 GHz are 1.18 dBi and 1.67 dBi respectively. The achieved compactness of the suggested MSA is 71.1%. The radiation patterns are acceptable at 3.2 GHz and 5.0 GHz. The suggested MSA is modelled by Ansoft Designer V2 software and energized by 50 Ω coaxial feed line. Return loss, maximum gain and radiation patterns are discussed here. The antenna is very simple to model and very low-cost dielectric material is used. The antenna is useful for wireless applications.