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W-band phase shifte...
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Lioubtchenko, Dmitri V.
(author)
W-band phase shifter based on optimized optically controlled carbon nanotube layer
- Article/chapterEnglish2017
Publisher, publication year, extent ...
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Institute of Electrical and Electronics Engineers (IEEE),2017
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Numbers
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LIBRIS-ID:oai:DiVA.org:kth-217564
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217564URI
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https://doi.org/10.1109/MWSYM.2017.8058815DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
Notes
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QC 20171117
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Phase shifting in a dielectric rod waveguide (DRW), loaded with carbon nanotube (CNT) layers of different thickness, was studied experimentally under light illumination in the frequency range of 75-110 GHz. The dependence of efficiency of the phase shifting, in terms of phase shift per light intensity and millimeter wave attenuation, on the optical transparency of the CNT-layer is investigated in this paper. The best result, a phase shifter of 0-15° with less than 0.1 dB additional signal loss in the W-band was achieved for a 95% transparent CNT layer at 23 mW/mm2 light intensity of a tungsten halogen lamp (main radiation spectrum is 550-680 nm). The overall insertion loss of the phase shifter including two DRW tapering sections serving as transitions to rectangular waveguides are 3 to 5 dB in the W-band, about 2 dB is attributed to the CNT DRW section. This comprises, for the first time, an optically-controlled CNT-based DRW phase shifter with phase shift and insertion loss levels suitable for practical applications.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Anoshkin, IlyaKTH,Mikro- och nanosystemteknik(Swepub:kth)u1zzhikx
(author)
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Nefedova, I. I.
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Oberhammer, Joachim,ProfessorKTH,Mikro- och nanosystemteknik(Swepub:kth)u12600dy
(author)
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Raisanen, A. V.
(author)
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KTHMikro- och nanosystemteknik
(creator_code:org_t)
Related titles
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In:2017 IEEE MTT-S International Microwave Symposium (IMS): Institute of Electrical and Electronics Engineers (IEEE), s. 1188-11919781509063604
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