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Four-element planar arrays employing probe-fed cylindrical dielectric resonator antennas

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

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 200 KB
Volume: 18
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(19980805)18:5<315::aid-mop1>3.0.co;2-b

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✦ Synopsis

Three four-element planar arrays, with the radiating elements being cylindrical dielectric resonator antennas excited by probes at the HE mode, are reported. The first array produces broadside radia-11␦ tion, whereas the other two pro¨ide maximum radiation at ele¨ation angles of ; 35᎐40Њ. The resonant frequency, radiation pattern, gain, unloaded Q-factor, and impedance bandwidth of each array configuration are reported, and the experimental results are compared with the theoretical ¨alues. Results indicated that the gains of the three configurations were greater than the gain of the single element by factors of 4, 3, and 2, respecti¨ely. For all configurations, the impedance bandwidth was increased by ; 30Њ with respect to that of the single antenna.

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