Journal
NANOTECHNOLOGY
Volume 29, Issue 32, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aac557
Keywords
graphene; microwave; modulation; ring resonator
Funding
- US Army International Technology Centre Atlantic [W911NF-16-2-0236]
- Apulia Region program 'FutureInResearch' [7K76VI3]
- National Laboratory Sens&Micro LAB Project (POFESR) [15]
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In this paper, we numerically and experimentally demonstrate how to modulate the amplitude and phase of a microwave ring resonator by means of few-layers chemical vapour deposition graphene. In particular, both numerical and experimental results show a modulation of about 10 dB and a 90 degrees-shift (quadrature phase shift) when the graphene sheet-resistance is varied. These findings prove once again that graphene could be efficiently exploited for the dynamically tuning and modulation of microwave devices fostering the realization of (i) innovative beam-steering and beam-forming systems and (ii) graphene-based sensors.
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