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Image rejection in a receiver frontend by means of BAW resonators and an image-reject architecture

Unterdrückung der Spiegelfrequenz in einem Empfänger unter Verwendung von BAW-Resonatoren und einer Image-Reject-Architektur

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Zusammenfassung

Der Artikel beschreibt zwei Maßnahmen zur Unterdrückung der Spiegelfrequenz in einem 2,45-GHz-Empfänger. Der vorgestellte Empfänger ist Teil eines BAW-basierten Transceivers in einem reinen 130-nm-CMOS-Prozess. Sowohl die schmale Bandbreite von einzelnen BAW-Resonatoren wird zur Filterung im RF-Bereich verwendet als auch eine Image-Reject-Architektur zur zusätzlichen Unterdrückung der Spiegelfrequenz.

Summary

This paper describes two measures for image rejection in a 2.45 GHz receiver frontend. The presented receiver frontend is part of a BAW-based transceiver in a 130 nm pure CMOS process. It uses the narrow bandwidth of single BAW resonators for filtering at RF as well as an image-reject architecture for additional image suppression.

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Authors and Affiliations

  1. Infineon Technologies Austria AG, Development Center Graz, Graz, Austria

    M. Dielacher, M. Flatscher, J. Prainsack, R. Matischek & Th. Herndl

  2. Institut für Elektronik, Technische Universität Graz, Graz, Austria

    W. Pribyl

Authors
  1. M. Dielacher
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  2. M. Flatscher
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  3. J. Prainsack
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  4. R. Matischek
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  5. Th. Herndl
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  6. W. Pribyl
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Dielacher, M., Flatscher, M., Prainsack, J. et al. Image rejection in a receiver frontend by means of BAW resonators and an image-reject architecture. Elektrotech. Inftech. 126, 408–414 (2009). https://doi.org/10.1007/s00502-009-0692-7

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  • DOI: https://doi.org/10.1007/s00502-009-0692-7

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