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Author Naify, Christina J. ♦ Rohde, Charles A. ♦ Calvo, David C. ♦ Orris, Gregory J. ♦ Guild, Matthew D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ AIR ♦ ANTENNAS ♦ APERTURES ♦ DESIGN ♦ FINITE ELEMENT METHOD ♦ POWER TRANSMISSION LINES ♦ PRISMS ♦ TRANSDUCERS ♦ WAVEGUIDES
Abstract Analysis and experimental demonstration of a two-dimensional acoustic leaky wave antenna is presented for use in air. The antenna is comprised of a two-dimensional waveguide patterned with radiating acoustic shunts. When excited using a single acoustic source within the waveguide, the antenna acts as a sonic prism that exhibits frequency steering. This design allows for control of acoustic steering angle using only a single source transducer and a patterned aperture. Aperture design was determined using transmission line analysis and finite element methods. The designed antenna was fabricated and the steering angle measured. The performance of the measured aperture was within 9% of predicted angle magnitudes over all examined frequencies.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-09-28
Publisher Place United States
Journal Applied Physics Letters
Volume Number 107
Issue Number 13


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