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Tunable 245 GHz transmitter and receiver in SiGe technology for gas spectroscopy

Schmalz, K. and Hübers, Heinz-Wilhelm and Neumaier, Philipp F.-X. and Borngräber, J. and Mao, Y. (2014) Tunable 245 GHz transmitter and receiver in SiGe technology for gas spectroscopy. Electronics Letters, 50 (12), pp. 881-882. Institution of Engineering and Technology (IET). DOI: 10.1049/el.2014.0625 ISSN 0013-5194

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Official URL: http://dx.doi.org/10.1049/el.2014.0625


A 245 GHz sensor system for gas spectroscopy is presented, which includes an integrated SiGe transmitter (TX) and receiver (RX), and a 0.6 m-long gas absorption cell between the TX and RX modules. The integrated local oscillators (LOs) of TX and RX chips are controlled by two external phase-locked loops (PLLs), whose reference frequencies are swept with constant frequency offset for a low intermediate frequency of the RX. The RX consists of a differential low-noise amplifier, an integrated 122 GHz LO with a 1/64 divider, a 90° differential hybrid and an active subharmonic mixer. The TX consists of an integrated 122 GHz LO with a 1/64 divider, and a frequency doubler. The TX and RX chips are fabricated in 0.13 μm SiGe BiCMOS technology with fT/fmax of 300 GHz/500 GHz. Using external dielectric lenses for the TX and RX modules, the gas absorption spectra were measured for acetonitrile and methanol.

Item URL in elib:https://elib.dlr.de/94017/
Document Type:Article
Title:Tunable 245 GHz transmitter and receiver in SiGe technology for gas spectroscopy
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schmalz, K.IHP Frankfurt, OderUNSPECIFIED
Hübers, Heinz-Wilhelmheinz-wilhelm.huebers (at) dlr.deUNSPECIFIED
Neumaier, Philipp F.-X.philipp.neumaier (at) dlr.deUNSPECIFIED
Borngräber, J.IHP Frankfurt, OderUNSPECIFIED
Mao, Y.IHP Frankfurt, OderUNSPECIFIED
Date:5 June 2014
Journal or Publication Title:Electronics Letters
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1049/el.2014.0625
Page Range:pp. 881-882
Publisher:Institution of Engineering and Technology (IET)
Keywords:SiGe, 245 GHz, Terahertz, Transmitter, Receiver, Heterodyne, Gas, Spectroscopy, CH3CN, CH3OH, PLL
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - Optimode (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Neumaier, Philipp
Deposited On:07 Jan 2015 10:13
Last Modified:08 Mar 2018 18:21

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