Wide frequency switchable microwave resonator by injecting eutectic gallium indium into microfluidic defected ground structure

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초록

This article proposes a frequency switchable microwave resonator based on a microfluidic defected ground structure (m-DGS) that provides wider frequency tuning ratio. Because its resonant frequency is determined from the DGS geometry, the resonant frequency can be switched by injecting EGaIn liquid metal into the m-DGS to decrease the effective inductance and hence increase resonant frequency to 7.7 GHz from 3 GHz, that is, 88% tuning range. The proposed idea is demonstrated numerically and experimentally. © 2019 Wiley Periodicals, Inc.

키워드

defected ground structurefrequency switchingliquid metalmicrofluidic channelresonatorDefectsGalliumIndiumLiquid metalsMicrofluidicsMicrowave devicesMicrowave resonatorsNatural frequenciesResonatorsFrequency switchingFrequency tuning ratioMicrofluidic channelSwitchableTuning rangesDefected ground structures
제목
Wide frequency switchable microwave resonator by injecting eutectic gallium indium into microfluidic defected ground structure
저자
Kim, Y.Lim, D.Park, E.Tentzeris, M.M.Lim, Sungjoon
DOI
10.1002/mop.31896
발행일
2019-10
유형
Article
저널명
Microwave and Optical Technology Letters
61
10
페이지
2405 ~ 2409