Journal
NANOTECHNOLOGY
Volume 26, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/26/5/055201
Keywords
microwave; graphene; attenuator; flexible electronics
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT, & Future Planning [2014R1A1A1004614]
- 'Sensitivity touch platform development and new industrialization support program' through the Ministry of Knowledge Economy (MKE)
- Korea Institute for Advancement of Technology (KIAT)
- National Research Foundation of Korea [2014R1A1A1004614] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We demonstrate flexible 3 dB and 6 dB microwave attenuators using multilayer graphene grown by the chemical vapor deposition method. On the basis of the characterized results of multilayer graphene and graphene-Au ohmic contacts, the graphene attenuators are designed and measured. The flexible graphene-based attenuators have 3 dB and 6 dB attenuation with a return loss of less than -15 dB at higher than 5 GHz. The devices have shown durability in a bending cycling test of 100 times. The circuit model of the attenuator based on the characterized results matches the experimental results well.
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