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Journal of Electrical and Computer Engineering
Volume 2013 (2013), Article ID 382913, 10 pages
http://dx.doi.org/10.1155/2013/382913
Research Article

A Compact, Versatile Six-Port Radar Module for Industrial and Medical Applications

1Institute for Electronics Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
2InnoSenT GmbH, Am Roedentor 30, 97499 Donnersdorf, Germany

Received 4 October 2013; Accepted 21 November 2013

Academic Editor: Adriana Serban

Copyright © 2013 Sarah Linz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The Six-port receiver has been intensively investigated in the last decade to be implemented as an alternative radar architecture. Plenty of current scientific publications demonstrate the effectiveness and versatility of the Six-port radar for special industrial, automotive, and medical applications, ranging from accurate contactless vibration analysis, through automotive radar calibration, to remote breath and heartbeat monitoring. Its highlights, such as excellent phase discrimination, trivial signal processing, low circuit complexity, and cost, have lately drawn the attention of companies working with radar technology. A joint project involving the University of Erlangen-Nuremberg and InnoSenT GmbH (Innovative Sensor Technology) led to the development of a highly accurate, compact, and versatile Six-port radar module aiming at a reliable high-integration of all subcomponents such as antenna, Six-port front-end, baseband circuitry, and digital signal processing in one single package. Innovative aspects in the RF front-end design as well as in the integration strategy are hereby presented, together with a system overview and measurement results.