Abstract

AbstractA compact broadband rectangular patch antenna is designed, simulated, and analyzed. This antenna is designed and simulated by RT/Duroid 5880 with relative permittivity of 2.2, thickness of 1.588 mm, and loss tangent of 0.0009. Before modification, the reference structure resonates at 10.17 GHz with 5.21% fractional bandwidth. The ground plane of the reference structure is modified to achieve the compactness as well as broadband nature. The proposed antenna exhibits an impedance bandwidth of 1 GHz (3.4–4.4 GHz) with two resonating frequencies at 3.6 and 4.3 GHz. Compactness of 85% with percentage bandwidth of 25.31% has been achieved in the proposed antenna. Stable radiation patterns with sufficient isolation between co-pol and cross-pol in both E plane and H plane with peak gain of 6.3 dBi are achieved. All the simulation results are obtained by CST Microwave Studio. The designed compact microstrip patch antenna is suitable for S band and C band applications.KeywordsCompactBroadbandModified ground planeMicrostrip patch antenna

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