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Stacked dielectric resonator antenna for multifrequency operation

✍ Scribed by A. Sangiovanni; J. Y. Dauvignac; Ch. Pichot

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
160 KB
Volume
18
Category
Article
ISSN
0895-2477

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✦ Synopsis

A stacked dielectric resonator antenna DRA , composed of an annular ring excited by a coaxial probe and two cylindrical ( ) dielectric resonators CDRs , is studied experimentally for three-frequency band operation. A maximum frequency ratio of 1.75 is achie¨ed between higher and lower frequencies, and quite similar radiation patterns are obtained at two of the separate operating frequencies. The middle frequency band offers different radiating properties. A minimum 10 dB impedance bandwidth of 4.9% is performed. The return loss, radiation patterns, and antenna gain of this configuration are reported. ᮊ 1998

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