Kabo O. Mabusha and Pradeep Kumar* Pages 212 - 218 ( 7 )
Background: In this paper, the design of a dual-band microstrip patch antenna with operating frequencies of 2.16 GHz and 2.79 GHz is proposed.Methods: The proposed antenna design is based upon the defected ground structure and rectangular patch with corner cuts. The presented antenna structure is simulated and optimized using CST microwave studio software. Results: The antenna resonates at 2.16 GHz and 2.79 GHz. The bandwidth of the proposed antenna is 2.08 GHz-2.25 GHz at center frequency 2.16 GHz and is 2.7 GHz-2.87 GHz at center frequency 2.79 GHz. The optimized antenna model is fabricated and measured. The measured and simulated results are presented and discussed. The proposed antenna provides a maximum gain of 4.463 dB and the maximum directivity of 5.846 dBi. The maximum radiation efficiency and total efficiency of the antenna are 79.85% and 69.01%, respectively. Conclusion: The proposed antenna is suitable for dual-band wireless applications.
Microstrip antenna, reflection coefficient, dual-band, radiation pattern, gain, directivity.
Department of Electrical, Electronic and Computer Engineering, School of Engineering, Howard College Campus, King George V Avenue, University of KwaZulu-Natal, Durban 4041, Department of Electrical, Electronic and Computer Engineering, School of Engineering, Howard College Campus, King George V Avenue, University of KwaZulu-Natal, Durban 4041