Liquid-metal frequency-reconfigurable slot antenna using air-bubble actuation
作者： J.H. Dang , R.C. Gough , A.M. Morishita , A.T. Ohta , W.A. Shiroma
DOI: 10.1049/EL.2015.2782
关键词: Gallium 、 Bandwidth (signal processing) 、 Pressure differential 、 Slot antenna 、 Optoelectronics 、 Air bubble 、 Electrical engineering 、 Liquid metal 、 Feed line 、 Materials science 、 Metal
摘要: Liquid metal actuated by pressure-driven air bubbles is guided within channels to dynamically reconfigure the length of radiating aperture and feed line a slot antenna. The gallium-based liquid held in position bubbles, liquid-metal motion induced when pressure differential created. In contrast conventional hydraulic or pneumatic actuation metal, described here reversible repeatable, as enveloped thin layer NaOH solution, which acts slip reduces any oxidation. antenna achieves 26% tunable bandwidth with contiguous range from 1.42 1.84 GHz for S 11 <;-10 dB. peak gain ranges 4.8 dBi its lowest-frequency state 4.1 highest-frequency state.
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