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Abstract

This paper presents the design of a dual band dipole antenna with harmonic suppression capability. The proposed antenna consists of a single parasitic element and it operates at frequencies 0.8 GHz, 2.4 GHz, and 4 GHz. The third operating frequency of 4 GHz has been suppressed and this suppression leads to the elimination of noise interference. Thus the final design becomes a dual band (0.8 GHz and 2.4 GHz) dipole antenna which is free from noise interference. The predicted and measured results show that the antenna operates indual-band with a return loss of -30 dB and -21.3 dB at 0.8 GHz and 2.4GHz respectively. This antenna is fabricated on a FR-4 substrate having 4.3 permittivity and a thickness of 1.6 mm. The simulated and the measured results validate the performance of our proposed antenna and a good agreement is found between the results.