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.