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Broadband sub-THz spectroscopy modules integrated in 65-nm CMOS technology

Published online by Cambridge University Press:  09 June 2017

Marion K. Matters-Kammerer ,
Dave Van Goor  and
Lorenzo Tripodi
Marion K. Matters-Kammerer*
Affiliation:
Mixed-Signal Microelectronics, Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
Dave Van Goor
Affiliation:
Philips Lighting Research, High Tech Campus 7, Eindhoven, The Netherlands
Lorenzo Tripodi
Affiliation:
Was with Philips Group Innovation, Research, Eindhoven. He is now with ASML Development & Engineering, Eindhoven, The Netherlands
*
Corresponding author: M. K. Matters-Kammerer Email: m.matters@tue.nl
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Abstract

The design and characterization of a broadband 20–480 GHz continuously tuneable on-chip spectrometer based on non-linear transmission lines in 65-nm CMOS technology is presented. The design procedure of the sampler that detects the ultra-broadband signal from the transmitter in time and frequency domain is described in detail. It consists of a non-linear transmission line, a passive pulse differentiator and a high-speed sample and hold-circuit. The relevance of the layout of the Schottky diodes in the sampler with a maximum RC-cutoff frequency of 430 GHz is described. Time domain and frequency domain measurements are presented to characterize the 480 GHz sampler bandwidth as well as the 3.1 ps sampler rise time. A signal to noise ratio of 90 dB at 100 GHz, 70 dB at 200 GHz and more than 30 dB at 480 GHz is reached. Two implementation of the spectrometer with antennas are presented, one with an on-chip antenna and one in a hybrid package. The antenna-less on-chip implementation of the transmitter and sampler requires no external lenses and is miniaturized to an area of 3 mm2. Future applications include analysis of fluids in microfluidic packages or droplet analysis in bio-medical or pharmaceutical applications.

Keywords

Circuit design and applicationsCharacterization of material parameters
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Special Issue 6: EuMW 2016 Special Issue , July 2017 , pp. 1211 - 1218
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

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References

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