DESIGN OF MULTIBAND MICROSTRIP PATCH ANTENNA FOR WIRELESS 1 GHz TO 5 GHz BAND APPLICATIONS WITH MICROSTRIP LINE FEEDING TECHNIQUE

—In recent years many studies are concentrated on multiband micro strip antenna structures for important purposes in wireless communication systems, medical imaging, and radar sensor resolution. In this paper, we printed a square radiator patch on FR4 substrate material. The relative dielectric constant was 4.4, and the thickness of the substrate material was 1.6 mm. The patch was fed by a transmission line feeder, and there was a gap between the patch and the ground plane. Antenna design is simulated on electromagnetic (EM) simulation software IE3D and anechoic chamber with a network analyzer was used during the experimental tests. The simulated and measured results demonstrated that the proposed antenna achieved a wide impedance bandwidth from 1.0 GHz to 5.0 GHz with a return loss of less than -10 dB. The proposed antenna is easy to integrate with microwave circuitry for low manufacturing cost. The antenna structure is flat, and its design is simple and straightforward.