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Integrated CNT Aerogel Absorbers for Sub-THz Waveguide Systems
Inst High Pressure Phys PAS, CENTERA Labs, Warsaw, Poland..
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Micro and Nanosystems. TeraSi AB, Stockholm, Sweden..ORCID iD: 0000-0002-8514-6863
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Micro and Nanosystems.ORCID iD: 0000-0002-7739-3178
Inst High Pressure Phys PAS, CENTERA Labs, Warsaw, Poland..
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2022 (English)In: 2022 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS 2022), Institute of Electrical and Electronics Engineers (IEEE) , 2022, p. 906-909Conference paper, Published paper (Refereed)
Abstract [en]

The ongoing development of sub-THz systems and applications has created a need for new absorbing materials which can be integrated in a simple, low-cost manner. Here, we investigate the properties of CNT-based aerogels in the range of 67-110 GHz and develop a simple technique for their integration. The aerogels are synthesised using standard techniques and then shaped using a laser cutter to allow for direct integration. The S-parameters of a total of four aerogel absorber samples are measured. The absorbers offer a return loss of up to 12 - 14.5 dB across the measurement band, with a maximum absorption 2.54 of 5 dB/mm The observed performance makes CNT aerogels extremely promising candidates for use in sub-THz waveguide systems and applications.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2022. p. 906-909
Series
IEEE MTT-S International Microwave Symposium, ISSN 0149-645X
Keywords [en]
carbon nanotubes, absorber, integrated, waveguide, sub-THz, W - band
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-320466DOI: 10.1109/IMS37962.2022.9865574ISI: 000862782300235Scopus ID: 2-s2.0-85137988439OAI: oai:DiVA.org:kth-320466DiVA, id: diva2:1706029
Conference
IEEE/MTT-S International Microwave Symposium (IMS), JUN 19-24, 2022, Denver, CO
Note

Part of proceedings: ISBN 978-1-6654-9613-1

QC 20221025

Available from: 2022-10-25 Created: 2022-10-25 Last updated: 2023-01-16Bibliographically approved

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Campion, JamesXenidis, NikolaosSmirnov, SergueiLioubtchenko, Dmitri

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Campion, JamesXenidis, NikolaosSmirnov, SergueiLioubtchenko, Dmitri
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