Bandstop bulk acoustic wave filter based on double-ladder filter topology

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Bandstop bulk acoustic wave filter based on double-ladder filter topology

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A simple and successful bulk acoustic wave filter configuration based on the double-ladder topology is presented. Unlike the conventional double-ladder topology, this new one allows one to obtain either dualband or wideband bandstop responses. The predicted results are validated with measured data.

Inspec keywords: ladder filters; surface acoustic wave filters; bulk acoustic wave devices

Other keywords: double-ladder filter topology; bandstop bulk acoustic wave filter

Subjects: Acoustic wave devices; Acoustical measurements and instrumentation; Acoustic signal processing; Filters and other networks

References

    1. 1)
      • K. Hashimoto . (2009) RF bulk acoustic wave filters for communications.
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      • Mourot, L., Bar, P., Bila, S., Parat, G., Ancey, P., Carpentier, J.F.: `Band reject filter in BAW technology', Proc. 38th European Microwave Conf., October 2008, Amsterdam, The Netherlands, 1, p. 349–352.
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2011.0334
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