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In the above titled letter (ibid., vol. 9, pp. 615-618, 2010), the authors have reported a singly fed rectangular dielectric resonator with a circular polarization bandwidth of 14%. This is incorrect owing to an error in processing the computed and measured axial ratio data. As a result, Fig. 4 needs to be replaced by the figure presented here, which illustrates a 3-dB axial ratio bandwidth of 7%. The conclusions remain valid as the achieved bandwidth is still significantly higher than the typical bandwidths of less than 3% for singly fed rectangular dielectric resonator antennas.
Antennas and Wireless Propagation Letters, IEEE (Volume:9 )
Date of Publication: 2010