240-GHz Reflectometer with Integrated Transducer for Dielectric Spectroscopy in a 130-nm SiGe BiCMOS Technology
- Resource Type
- Conference
- Authors
- Wang, Defu; Eissa, Mohamed Hussein; Schmalz, Klaus; Kampfe, Thomas; Kissinger, Dietmar
- Source
- 2020 IEEE/MTT-S International Microwave Symposium (IMS) Microwave Symposium (IMS), 2020 IEEE/MTT-S International. :1129-1132 Aug, 2020
- Subject
- Components, Circuits, Devices and Systems
Computing and Processing
Engineering Profession
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Spectroscopy
Transducers
Liquids
Volume measurement
Biomedical measurement
BiCMOS integrated circuits
Dielectrics
Dielectric sensor
heterodyne
reflectometer
SiGe
terahertz
mm-Wave
- Language
- ISSN
- 2576-7216
This paper presents a reflectometer with an integrated transducer as a high-integration miniaturized sensor for dielectric spectroscopy at 240 GHz in SiGe BiCMOS technology. The reflectometer consists of a signal generation component using 240-GHz multiplier chains, side-coupled directive couplers and a two-channel heterodyne receiver. Readout of the transducer upon exposure to liquids is performed by the measurement of its reflected signal using an external excitation source. The experimental dielectric sensing is demonstrated by using a binary methanol-ethanol mixture placed on the proposed on-chip dielectric sensor in the assembled printed circuit board.