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Design and Simulation of a Broad-Band Rectangular Microstrip Antenna by Direct Feed Method

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Executive Summary

In this paper, the aim is to increase the bandwidth of microstrip antenna by using direct co-axial feeding technique. The design considerations are given for probe feed rectangular microstrip patch antenna operating at a frequency of 2.4 GHz. The bandwidth of Microstrip antenna is very narrow (2 to 5%). So to enhance the bandwidth, Microstrip patch antenna is fed by co-axial feeding technique along with an array concept. The simulation results show that an antenna with foam substrate has improved bandwidth significantly. By using direct co-axial feed technique the bandwidth has been increased up to 16%.

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