A Dual- Band Microstrip Array Antenna with Defected Ground Structure

Abstract

This paper objective is to construct and analyse a dual-band inset-fed microstrip array antenna for 4.77 GHz and 5.09 GHz dual band frequency with a defective ground structure (DGS) plane. An inset-fed microstrip patch antenna array's ground plane could have H shaped slots etched out of it to permit operation in the second frequency band (4.77 GHz), which is a design concept. To achieve this goal,a wide parametric analysis is applied to select the placements of etched slots that have the desired impedance bandwidth, high gain in the desired bands, and mismatching in the undesirable bands. The proposed dual-band antenna that acts as a monopole-like antenna and it can be used for wireless communications.