Radiation Characteristics of Spherically Symmetric, Perfect Focusing Acoustic Lenses
作者:
C. A. Boyles,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1969)
卷期:
Volume 45,
issue 2
页码: 351-355
ISSN:0001-4966
年代: 1969
DOI:10.1121/1.1911380
出版商: Acoustical Society of America
数据来源: AIP
摘要:
It was shown in a paper by Morgan [J. Appl. Phys.29, 1358–1368 (1958)] that there exist an infinite number of spherically symmetric, perfect‐focusing lenses of which the Luneburg lens is but one example. Using the Helmholtz formulation of diffraction theory, we examine the farfield radiation characteristics of these lenses for both the case of an omnidirectional source and a particular directional source.
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