Housing influence on multi-band directional MEMS microphones inspired by Ormia ochracea

R. Bauer, Y. Zhang, J. C. Jackson, W. M. Whitmer, W. O. Brimijoin, M. Akeroyd, D. Uttamchandani, J. F. C. Windmill

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)
58 Downloads (Pure)


A new bio-inspired multi-band directional MEMS microphone based on the hearing properties of the fly Ormia ochracea is presented, together with the behavioral influence of 3D-printed housings. The multi-user foundry fabricated microphone operates on four frequency bands, all below 10 kHz and acts as a pressure gradient directional microphone with figure of eight polar pattern, or as an omni-directional microphone depending on the housing. The influence of an open or closed backside housing on the frequency response and directionality is shown, leading to the loss of directionality with no acoustic access to the backside of the fly-ear inspired microphone membrane.
Original languageEnglish
Title of host publicationIEEE Sensors, 2016
Place of PublicationPiscataway, N.J.
Number of pages3
ISBN (Print)978-1-4799-8288-2
Publication statusPublished - 9 Jan 2017
EventIEEE Sensors 2016 - Caribe Royale, Orlando, FL, United States
Duration: 30 Oct 20163 Nov 2016


ConferenceIEEE Sensors 2016
Country/TerritoryUnited States
CityOrlando, FL
Internet address


  • MEMS directional microphone
  • bio-inspired
  • 3D-printed housing
  • multi-band sensing
  • piezoelectric sesnsing


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