Superconducting RF front-end filters for cell phone base stations
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2003.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2005
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| Online Access: | http://hdl.handle.net/1721.1/7979 |
| _version_ | 1811076924654485504 |
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| author | Kirschenbaum, Abigail, 1979- |
| author2 | Terry P. Orlando. |
| author_facet | Terry P. Orlando. Kirschenbaum, Abigail, 1979- |
| author_sort | Kirschenbaum, Abigail, 1979- |
| collection | MIT |
| description | Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2003. |
| first_indexed | 2024-09-23T10:30:47Z |
| format | Thesis |
| id | mit-1721.1/7979 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T10:30:47Z |
| publishDate | 2005 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/79792019-04-10T17:13:17Z Superconducting RF front-end filters for cell phone base stations Superconducting radio frequency front-end filters for cell phone base stations Kirschenbaum, Abigail, 1979- Terry P. Orlando. Massachusetts Institute of Technology. Dept. of Materials Science and Engineering. Massachusetts Institute of Technology. Dept. of Materials Science and Engineering. Materials Science and Engineering. Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2003. Includes bibliographical references (leaf 37). Cellular bands A and B are in the 100s of :MHz frequency range. They are . discontinuous bands requiring sharp skirts - the specialty of superconducting filters. Superconducting filters are therefore ideal in the function of front-end filters on cell phone base stations, serving to reject any unnecessary signals, eliminating intermodulation distortion (IMD). Broader geographical coverage and higher calling capacity per tower are other effects of the superconducting filters compared to their dielectric counterparts. Were a business to sell these filters, the intended customer would be the cell phone company, rather than the base station manufacturer. The filters would have to be cryocooled. However this requirement is no longer a disadvantage, through an increase of cryocooler mean time between failure(MTBF) to more than 500,000 hours, and through a recently overturned patent on fail-safe operation in case of cooler failure. Comparable businesses have typical quarterly losses on the order of 10s of millions of dollars, but do sell products, so a new business should not expect to tum a profit immediately. However, the ability to learn from the experiences of predecessors would serve a new company well. In addition, the possibility of combining two devices onto one chip (filter and Josephson junction) could serve as a new area of growth for an emerging company. by Abigail Kirschenbaum. M.Eng. 2005-08-24T23:26:20Z 2005-08-24T23:26:20Z 2003 2003 Thesis http://hdl.handle.net/1721.1/7979 54810024 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 37 leaves 3473388 bytes 3473147 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Materials Science and Engineering. Kirschenbaum, Abigail, 1979- Superconducting RF front-end filters for cell phone base stations |
| title | Superconducting RF front-end filters for cell phone base stations |
| title_full | Superconducting RF front-end filters for cell phone base stations |
| title_fullStr | Superconducting RF front-end filters for cell phone base stations |
| title_full_unstemmed | Superconducting RF front-end filters for cell phone base stations |
| title_short | Superconducting RF front-end filters for cell phone base stations |
| title_sort | superconducting rf front end filters for cell phone base stations |
| topic | Materials Science and Engineering. |
| url | http://hdl.handle.net/1721.1/7979 |
| work_keys_str_mv | AT kirschenbaumabigail1979 superconductingrffrontendfiltersforcellphonebasestations AT kirschenbaumabigail1979 superconductingradiofrequencyfrontendfiltersforcellphonebasestations |