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Original Article

JJCIT. 2015; 1(Jordanian Journal of Computers and Information Technology, Vol. 1, No. 1, 2015): 1-14


Asem S Al-Zoubi.

A simple wide-band rectangular dielectric resonator antenna (DRA) is designed for the X-band and Ku-band applications. The DRA is excited by a vertical strip placed on the middle of the DRA wide side wall through a coaxial probe attached to a finite size ground plane. Good agreement between measured and simulated results is obtained. The measured 10 dB return loss bandwidth of the antenna is about 7.8 GHz (63%). The simulated gain of the antenna is 6.1 dBi at 12 GHz. The antenna excites undesired modes that perturb the radiation patterns and increase the cross-polarization level. The dielectric resonator is wrapped by a conducting strip to suppress some modes and improve the radiation characteristics of the antenna. Adding the strip reduces the cross polarization level and improves the co-polarization radiation pattern.

Key words: Wide-Band Antenna, Dielectric Resonator Antenna, strip-fed Antenna, low cross polarization.

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