A three-dimensional self-supporting low loss microwave lens with a negative refractive index
Demonstrations of focusing with metamaterial lenses have predominantly featured two dimensional structures or stacks of planar elements, both limited by losses which hinder realized gain near the focal region. In this study, we present a plano-concave lens built from a 3D self-supporting metamateria...
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| Format: | Article |
| Language: | en_US |
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American Institute of Physics
2014
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| Online Access: | http://hdl.handle.net/1721.1/87638 https://orcid.org/0000-0003-1038-7598 https://orcid.org/0000-0003-2812-039X |
| _version_ | 1811072776931377152 |
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| author | Ehrenberg, Isaac Mayer Sarma, Sanjay Emani Wu, Bae-Ian |
| author2 | Massachusetts Institute of Technology. Auto-ID Laboratory |
| author_facet | Massachusetts Institute of Technology. Auto-ID Laboratory Ehrenberg, Isaac Mayer Sarma, Sanjay Emani Wu, Bae-Ian |
| author_sort | Ehrenberg, Isaac Mayer |
| collection | MIT |
| description | Demonstrations of focusing with metamaterial lenses have predominantly featured two dimensional structures or stacks of planar elements, both limited by losses which hinder realized gain near the focal region. In this study, we present a plano-concave lens built from a 3D self-supporting metamaterial structure featuring a negative refractive index between 10 and 12 GHz. Fabricated using macroscopic layered prototyping, the lens curvature, negative index and low loss contribute to a recognizable focus and free space gains above 13 dB. |
| first_indexed | 2024-09-23T09:12:27Z |
| format | Article |
| id | mit-1721.1/87638 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:12:27Z |
| publishDate | 2014 |
| publisher | American Institute of Physics |
| record_format | dspace |
| spelling | mit-1721.1/876382022-09-30T14:02:42Z A three-dimensional self-supporting low loss microwave lens with a negative refractive index Ehrenberg, Isaac Mayer Sarma, Sanjay Emani Wu, Bae-Ian Massachusetts Institute of Technology. Auto-ID Laboratory Sarma, Sanjay Emani Sarma, Sanjay Emani Ehrenberg, Isaac Mayer Demonstrations of focusing with metamaterial lenses have predominantly featured two dimensional structures or stacks of planar elements, both limited by losses which hinder realized gain near the focal region. In this study, we present a plano-concave lens built from a 3D self-supporting metamaterial structure featuring a negative refractive index between 10 and 12 GHz. Fabricated using macroscopic layered prototyping, the lens curvature, negative index and low loss contribute to a recognizable focus and free space gains above 13 dB. 2014-06-04T20:34:04Z 2014-06-04T20:34:04Z 2012-10 2012-07 Article http://purl.org/eprint/type/JournalArticle 00218979 http://hdl.handle.net/1721.1/87638 Ehrenberg, Isaac M., Sanjay E. Sarma, and Bae-Ian Wu. “A Three-Dimensional Self-Supporting Low Loss Microwave Lens with a Negative Refractive Index.” Journal of Applied Physics 112, no. 7 (2012): 073114. © 2012 American Institute of Physics. https://orcid.org/0000-0003-1038-7598 https://orcid.org/0000-0003-2812-039X en_US http://dx.doi.org/10.1063/1.4757577 Journal of Applied Physics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Institute of Physics Prof. Sarma via Angie Locknar |
| spellingShingle | Ehrenberg, Isaac Mayer Sarma, Sanjay Emani Wu, Bae-Ian A three-dimensional self-supporting low loss microwave lens with a negative refractive index |
| title | A three-dimensional self-supporting low loss microwave lens with a negative refractive index |
| title_full | A three-dimensional self-supporting low loss microwave lens with a negative refractive index |
| title_fullStr | A three-dimensional self-supporting low loss microwave lens with a negative refractive index |
| title_full_unstemmed | A three-dimensional self-supporting low loss microwave lens with a negative refractive index |
| title_short | A three-dimensional self-supporting low loss microwave lens with a negative refractive index |
| title_sort | three dimensional self supporting low loss microwave lens with a negative refractive index |
| url | http://hdl.handle.net/1721.1/87638 https://orcid.org/0000-0003-1038-7598 https://orcid.org/0000-0003-2812-039X |
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