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Transmitters and receivers in SiGe BiCMOS technology for sensitive gas spectroscopy at 222 - 270 GHz

Schmalz, K. and Rothbart, Nick and Eissa, M.H. and Borngräber, J. and Kissinger, D. and Hübers, Heinz-Wilhelm (2019) Transmitters and receivers in SiGe BiCMOS technology for sensitive gas spectroscopy at 222 - 270 GHz. AIP Advances, 9, 015213-1. American Institute of Physics (AIP). DOI: 10.1063/1.5066261 ISSN 2158-3226

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Official URL: https://aip.scitation.org/doi/10.1063/1.5066261

Abstract

This paper presents transmitter and receiver components for a gas spectroscopy system. The components are fabricated in IHPs 0.13 µm SiGe BiCMOS technology. Two fractional-N phase-locked loops are used to generate dedicated frequency ramps for the transmitter and receiver and frequency shift keying for the transmitter. The signal-to-noise ratio (SNR) for the absorption line of gaseous methanol (CH3OH) at 247.6 GHz is used as measure for the performance of the system. The implemented mixer-first receiver allows a high performance of the system due to its linearity up to an input power of -10 dBm. Using a transmitter-array with an output power of 7 dBm an SNR of 4660 (integration time of 2 ms for each data point) was obtained for the 247.6 GHz absorption line of CH3OH at 5 Pa. We have extended our single frequency-band system for 228-252 GHz to a 2-band system to cover the range 222-270 GHz by combining corresponding two transmitters and receivers with the frequency bands 222-256 GHz and 250-270 GHz on single transmitter- and receiver-chips. This 2-band operation allows a parallel spectra acquisition and therefore a high flexibility of data acquisition for the two frequency-bands. The 50 GHz bandwidth allows for highly specific and selective gas sensing.

Item URL in elib:https://elib.dlr.de/128094/
Document Type:Article
Title:Transmitters and receivers in SiGe BiCMOS technology for sensitive gas spectroscopy at 222 - 270 GHz
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schmalz, K.IHP Frankfurt, OderUNSPECIFIED
Rothbart, NickNick.Rothbart (at) dlr.deUNSPECIFIED
Eissa, M.H.IHP Frankfurt, OderUNSPECIFIED
Borngräber, J.IHP Frankfurt, OderUNSPECIFIED
Kissinger, D.IHP Frankfurt, OderUNSPECIFIED
Hübers, Heinz-WilhelmHeinz-Wilhelm.Huebers (at) dlr.deUNSPECIFIED
Date:16 January 2019
Journal or Publication Title:AIP Advances
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:9
DOI :10.1063/1.5066261
Page Range:015213-1
Publisher:American Institute of Physics (AIP)
ISSN:2158-3226
Status:Published
Keywords:Gasspektroskopie, Gassensor, Millimeterwellen, Terahertz
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Rothbart, Nick
Deposited On:27 Jun 2019 09:07
Last Modified:27 Jun 2019 09:07

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