Bandwidth enhancement and radiation characteristics improvement of rectangular dielectric resonator antenna

• Main Authors: Khalily, Mohsen, A. Rahim, Mohamad Kamal, Kishk, Ahmed A.
• Format: Article
• Published: Institute of Electrical and Electronics Engineers Inc. 2011
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/28809/; http://dx.doi.org/10.1109/LAWP.2011.2144558

A simple, compact, wideband rectangular dielectric resonator antenna (RDRA) is presented. The bandwidth is enhanced using a proper tapered strip excitation from one side of the DR. The radiation characteristics are improved by adding a shorted narrow strip to the opposite side of the excitation. In addition, by using this shorted strip, further improvement of the bandwidth is obtained. A parametric study on the strip dimension is carried out. The proposed DRA with good radiation characteristics offers a measured bandwidth of 96% between 2.13 and 6.08 GHz for VSWR < 2.