✦ LIBER ✦

Theoretical and experimental investigations on a microstrip-coupled cylindrical dielectric resonator antenna

✍ Scribed by George Drossos; Zhipeng Wu; Lionel E. Davis

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 267 KB
Volume: 21
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(19990405)21:1<18::aid-mop6>3.0.co;2-y

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✦ Synopsis

A microstrip-coupled CDRA excited in the HE mode 11␦ is theoretically and experimentally in¨estigated. The antenna is simulated using the finite-element method. The parameters considered are the resonant frequency, return loss, radiation pattern, directi¨ity, unloaded Q-factor, and impedance bandwidth. The ¨ariation of these parameters with the position of the CDRA on the microstrip line is presented and discussed. Good agreement between predicted and measured results was obtained for the in¨estigated antenna parameters, establishing the finiteelement method as an accurate analysis tool for microstrip-coupled CDRAs. Microstrip coupling is efficient, simple, and easy to implement. A further benefit is that, by ¨arying the position of the CDRA with respect to the microstrip line, the radiation characteristics can be altered. This can be a particularly useful feature since the antenna parameters can be tuned to meet design specifications.

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