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Humboldt-Universität zu Berlin - Faculty of Mathematics and Natural Sciences - Optical Systems

Humboldt-Universität zu Berlin | Faculty of Mathematics and Natural Sciences | Department of Physics | Optical Systems | Publications | Gas Spectroscopy by Voltage-Frequency Tuning of a 245 GHz SiGe Transmitter and Receiver

Nick Rothbart, K. Schmalz, J. Borngräber, D. Kissinger, and H.-W. Hübers (2016)

Gas Spectroscopy by Voltage-Frequency Tuning of a 245 GHz SiGe Transmitter and Receiver

IEEE Sensors Journal, 16(24):8863–8864.

We report on a terahertz/millimeter-wave gas spectroscopy sensor system based on a 245 GHz transmitter (TX) and receiver (RX) fabricated in SiGe BiCMOS technology. The frequency is tuned by applying external voltages to voltage-controlled oscillators of the TX and the RX. Exemplary 2f spectra of methanol are presented that exhibit a high SNR of up to 560 and a short acquisition time as short as 39 s, respectively.

gas spectroscopy, terahertz, millimter-waves