Abstract
A multi-functional microstrip compact antenna capable of steering the main beam to eight different directions in the elevation plane is conferred in this study. The compact antenna consists of a driven patch of to bring in the resonance to , for achieving enormous application in european radar service under Wi-MAX band. The conductive layer on the superstrate deflect the beam with an angle corresponding to the position of superstrate on parasitic layer, without considering complex phase shifters and associated circuits. Proper alignment of superstrate results maximum scanning angle ofwithof deflection angle. The directivity of the antenna is enhanced by manipulating the parameters of the superstrate. The gain of the antenna was improved up to and the efficiency is improved up to using engineered superstrate. The full-wave simulation as well as analytical study was done using the IE3D EM simulator.
Highlights
In recent electromagnetic research, design of steerable antenna is frequently studied
Steering the main beam of the MSAs are inevitable in recent electromagnetic studies
Among which electronically beam steering is well suited and somewhat easy to steer the beam with improved scanning or tilting angle [5]
Summary
Design of steerable antenna is frequently studied. In earlier electromagnetic research it has been demonstrated that addition of superstrate layer in of the microstrip patch antennas having a better steering angle instead of referring array structure [10], leaky wave model [11], phase shifter [12] and other models reported, these techniques are increasing the complexity, design cost and somewhat difficult to analysis and manipulating [13]. Control on the beam deflection in of the radiating electromagnetic wave is realized using this multi-layer dielectric-superstrate structure. The directivity of the antenna is enhanced with improved gain up to 6 dBi. The composite structure of the MSAs with engineered superstrate is analyzed in full wave electromagnetic (EM) simulation tools by Mentor graphics, which follows advance methods to analyze the iterative computational task. The illustration indicates adopting of steerable antenna enhances the deflection angle This technique provides a wide range of scanning angle which in turn improves the coverage angle of the radar service. Use of the proposed structure reduces the number of base station, which enables it to provide economically low cost communication and avoids the use of number of communication device in specific regions
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