期刊
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
卷 49, 期 9, 页码 2228-2231出版社
WILEY
DOI: 10.1002/mop.22689
关键词
metamaterials; subwavelength lens; subwavelength focusing
Subwavelength focusing by an ensemble of magnetically coupled metamaterial elements is studied theoretically for the case when all the dimensions are small relative to the electromagnetic wavelength. It is shown that in contrast to expectation a focus can be placed in any desired position for any transmitter-lens configuration by the appropriate tuning of the receiver. A mathematical proof is provided and two examples are shown demonstrating a focal width of lambda/60. (C) 2007 Wiley Periodicals, Inc.
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