NDLI: A broadband, low-noise time-domain system for EMI measurements through Ka-band up to 40 GHz

Content Provider	IEEE Xplore Digital Library
Author	Hoffmann, C. Sidhom, A. Braun, S. Russer, P.
Copyright Year	2012
Description	Author affiliation: GAUSS INSTRUMENTS GmbH, Munich, Germany (Hoffmann, C.; Braun, S.) \|\| Technische Universität München, Institute for Nanoelectronics Munich, Germany (Sidhom, A.; Russer, P.)
Abstract	In this paper, a time-domain EMI measurement system for the frequency range from 10 Hz to 40 GHz is presented. Signals with a frequency of up to 1.1 GHz are sampled by an ultra-fast floating-point analog-to-digital-converter (ADC) and processed in real-time on a field-programmable-gate-array (FPGA). An ultra-broadband multi-stage down-converter allows for the measurement of signals with frequencies up to 40 GHz. Measurement times can be reduced by several orders of magnitude compared to traditional EMI-receivers that work in frequency-domain. With preselected integrated low-noise amplifiers, the system offers high sensitivity especially in the Ka-band from 26.5 GHz to 40 GHz. The low system noise figure from 26.5 GHz to 40 GHz yields an average noise floor level of around 12 dBμV using an IF-filter bandwidth of 1 MHz in this range. With a high system dynamic range of more than 70 dB, the system is excellently suited for the measurement of broadband, transient emissions or high-dynamic signals like radar pulses. Non-stationary emissions can be measured via the real-time spectrogram or via the multi-channel amplitude probability distribution (APD) measuring method.
Starting Page	468
Ending Page	472
File Size	1010591
Page Count	5
File Format	PDF
ISBN	9781467320610
ISSN	21581118
e-ISBN	9781467320603
DOI	10.1109/ISEMC.2012.6351686
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency measurement Mixers Electromagnetic interference Noise Bandwidth Broadband communication Time domain analysis
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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