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Rothbart, Nick und Hübers, Heinz-Wilhelm und Schmalz, K. und Borngräber, J. und Kissinger, D. (2018) Towards Breath Gas Analysis Based on Millimeter-Wave Molecular Spectroscopy. Frequenz, 72 (3-4), Seiten 87-92. de Gruyter. doi: 10.1515/freq-2018-0015. ISSN 0016-1136.
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Offizielle URL: https://doi.org/10.1515/freq-2018-0015
Kurzfassung
Breath gas analysis is a promising non-invasive tool for medical diagnosis as there are thousands of Volatile Organic Compounds (VOCs) in human breath that can be used as health monitoring markers. Millimeter-wave/terahertz molecular spectroscopy is highly suitable for breath gas analysis due to unique fingerprint spectra of many VOCs in that frequency range. We present our recent work on sensor systems for gas spectroscopy based on integrated transmitters (TX) and receivers (RX) fabricated in IHPs 0.13 um SiGe BiCMOS technology. For a single-band system, spectroscopic measurements and beam profiles are presented. The frequency is tuned by direct voltage-frequency tuning and by a fractional-n PLL, respectively. The spectroscopic system includes a folded gas absorption cell with gas pre-concentration abilities demonstrating the detection of a 50 ppm mixture of ethanol in ambient air corresponding to a minimum detectable concentration of 260 ppb. Finally, the design of a 3-band system covering frequencies from 225 to 273 GHz is introduced.
| elib-URL des Eintrags: | https://elib.dlr.de/124530/ | ||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
| Titel: | Towards Breath Gas Analysis Based on Millimeter-Wave Molecular Spectroscopy | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 28 März 2018 | ||||||||||||||||||||||||
| Erschienen in: | Frequenz | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||||||
| Band: | 72 | ||||||||||||||||||||||||
| DOI: | 10.1515/freq-2018-0015 | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 87-92 | ||||||||||||||||||||||||
| Verlag: | de Gruyter | ||||||||||||||||||||||||
| ISSN: | 0016-1136 | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | Gasspektroskopie, Gassensor, Terahertz, Millimeterwellen | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Verkehr | ||||||||||||||||||||||||
| HGF - Programmthema: | Verkehrsmanagement (alt) | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | V VM - Verkehrsmanagement | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | V - Optimode.net (alt) | ||||||||||||||||||||||||
| Standort: | Berlin-Adlershof | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Optische Sensorsysteme > Terahertz- und Laserspektroskopie | ||||||||||||||||||||||||
| Hinterlegt von: | Rothbart, Nick | ||||||||||||||||||||||||
| Hinterlegt am: | 07 Dez 2018 09:22 | ||||||||||||||||||||||||
| Letzte Änderung: | 02 Nov 2023 10:30 |
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