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An RF spectrometer for fast wide band measurement

Published online by Cambridge University Press:  18 January 2010

Simon Hemour ,
Florence Podevin  and
Pascal Xavier
Simon Hemour*
Affiliation:
IMEP-LAHC, Grenoble-Chambéry, France.
Florence Podevin
Affiliation:
IMEP-LAHC, Grenoble-Chambéry, France.
Pascal Xavier
Affiliation:
IMEP-LAHC, Grenoble-Chambéry, France.
*
Corresponding author: S. Hemour Email: simon.hemour@minatec.grenoble-inp.fr
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Abstract

A new type of spectrum analyzer using RF interferometry is presented. The stationary wave integrated Fourier transform spectrometer is dedicated to the measurement of transient wideband signals. The spectrometer is mobile and cheap. It consists of spatial samplers placed along a waveguide ended by a short circuit. The standing wave caused by the short circuit is sampled and the spectrum is obtained by an FFT computation. A 0.3–5 GHz analyzer was built as a proof-of-principle demonstration and an application to RF dosimetry is shown.

Keywords

Quadratic detectorInterferometrySchottky diodeSpectral analysisUHF spectroscopy
Type
Original Article
Information
International Journal of Microwave and Wireless Technologies , Volume 1 , Special Issue 6: 2009 National Microwave Days in France , December 2009 , pp. 537 - 542
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2010

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