The circularly polarized cross‐slot‐coupled hemi‐ellipsoidal dielectric resonator antenna (HEDRA) is studied in this letter. Reasonable agreement between simulation and measurement is obtained. A HEDRA is demonstrated, which has a 10‐dB impedance bandwidth (S11 < −10 dB) of 15.4% and a 3‐dB axial ratio bandwidth of 3.9%. The characteristics of the HEDRA are found. In addition, a comparison between the straight‐ and cross‐slot feeds is made in this letter.
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Li et al. (2006) studied this question.
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