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A novel homogeneous stacked yttrium ion garnet resonator antenna for wideband application
Author(s) -
Othman Mohamadariff,
Ali Wan Fahmin Faiz Wan,
Ahmad Zubir Ihsan,
Ain Mohd Fadzil,
Ahmad Zainal Arifin
Publication year - 2017
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/mop.30878
Subject(s) - wideband , resonator , yttrium iron garnet , materials science , broadband , bandwidth (computing) , dielectric resonator antenna , optoelectronics , yttrium , electronic engineering , optics , physics , telecommunications , engineering , metallurgy , oxide
The intent of this study is to realize efficient wideband DRA using unbiased low permittivity yttrium ion garnet (YIG) with excess Fe 2 O 3 . The fabricated YIG resonators with the same dimension but different ɛ r are used together to produce wideband stacked YIG resonator antenna (YRA). Three stacked YIG resonators with excess Fe 2 O 3 of 8% (YR8), 14% (YR14), and 17% (YR17) present the best YIG resonator combinations with bandwidth of 24.22%. Findings also indicate broadband radiation pattern throughout the design frequency range. The simulated and measured results are all in agreement. In conclusion, this work offers an improved and efficient YRA using YIG resonator with excess Fe 2 O 3 .

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