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Implementation of four‐element linear arrays using microstrip‐coupled cylindrical dielectric resonator antennas
Author(s) -
Drossos George,
Wu Zhipeng,
Davis Lionel E.
Publication year - 1998
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19981205)19:5<375::aid-mop19>3.0.co;2-#
Subject(s) - microstrip , microstrip antenna , dielectric resonator , resonator , dielectric resonator antenna , dielectric , element (criminal law) , acoustics , physics , materials science , optics , electronic engineering , engineering , telecommunications , antenna (radio) , optoelectronics , political science , law
Two four‐element linear broadside arrays, shaping the E θ ‐ and E ϕ ‐field components, using microstrip‐coupled cylindrical dielectric resonator antennas are reported. The resonant frequency, radiation pattern, gain, unloaded Q ‐factor, and impedance bandwidth of each array configuration are investigated. It is concluded that microstrip coupling is an efficient, simple, and easy to implement feeding scheme. An important benefit is that critical coupling can be obtained by simply varying the position of the CDRA with respect to the microstrip line. Overall, good agreement was obtained between theoretical and experimental results, with the numerical values being more accurate than the analytical data. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 375–379, 1998.