High-Tc superconductive microwave filters
Four-pole microstrip bandpass filters have been fabricated using both postannealed and in-situ-grown thin films of Y-Ba-Cu-O. The 4-GHz, 3 percent bandwidth filters exhibit, at 77 K, a passband insertion loss as low as 0.3 dB, compared to the 2.8-dB loss of similar gold metallic filters at the same...
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| Veröffentlicht in: | IEEE transactions on magnetics 1991-03, Vol.27 (2), p.2537-2539 |
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| container_end_page | 2539 |
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| container_issue | 2 |
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| container_title | IEEE transactions on magnetics |
| container_volume | 27 |
| creator | LYONS, W. G BONETTI, R. R WILLIAMS, A. E MANKIEWICH, P. M O'MALLEY, M. L HAMM, J. M ANDERSON, A. C WITHERS, R. S MEULENBERG, A HOWARD, R. E |
| description | Four-pole microstrip bandpass filters have been fabricated using both postannealed and in-situ-grown thin films of Y-Ba-Cu-O. The 4-GHz, 3 percent bandwidth filters exhibit, at 77 K, a passband insertion loss as low as 0.3 dB, compared to the 2.8-dB loss of similar gold metallic filters at the same temperature. These results demonstrate that complex passive microwave devices can be designed and implemented using high-temperature superconducting (HTS) material. More aggressive filter designs utilizing many more poles will result in much greater performance advantages for an HTS filter technology over a normal metal technology. Ultimately, ultrasharp-skirt filters can be produced, which would allow for more closely spaced communication channels and more efficient use of microwave communication bands than is currently possible with conventional filters. (I.E.) |
| doi_str_mv | 10.1109/20.133733 |
| format | Article |
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R ; WILLIAMS, A. E ; MANKIEWICH, P. M ; O'MALLEY, M. L ; HAMM, J. M ; ANDERSON, A. C ; WITHERS, R. S ; MEULENBERG, A ; HOWARD, R. E</creator><creatorcontrib>LYONS, W. G ; BONETTI, R. R ; WILLIAMS, A. E ; MANKIEWICH, P. M ; O'MALLEY, M. L ; HAMM, J. M ; ANDERSON, A. C ; WITHERS, R. S ; MEULENBERG, A ; HOWARD, R. E</creatorcontrib><description>Four-pole microstrip bandpass filters have been fabricated using both postannealed and in-situ-grown thin films of Y-Ba-Cu-O. The 4-GHz, 3 percent bandwidth filters exhibit, at 77 K, a passband insertion loss as low as 0.3 dB, compared to the 2.8-dB loss of similar gold metallic filters at the same temperature. These results demonstrate that complex passive microwave devices can be designed and implemented using high-temperature superconducting (HTS) material. More aggressive filter designs utilizing many more poles will result in much greater performance advantages for an HTS filter technology over a normal metal technology. 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These results demonstrate that complex passive microwave devices can be designed and implemented using high-temperature superconducting (HTS) material. More aggressive filter designs utilizing many more poles will result in much greater performance advantages for an HTS filter technology over a normal metal technology. Ultimately, ultrasharp-skirt filters can be produced, which would allow for more closely spaced communication channels and more efficient use of microwave communication bands than is currently possible with conventional filters. (I.E.)</abstract><cop>New York, NY</cop><pub>Institute of Electrical and Electronics Engineers</pub><doi>10.1109/20.133733</doi><tpages>3</tpages></addata></record> |
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| ispartof | IEEE transactions on magnetics, 1991-03, Vol.27 (2), p.2537-2539 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Electronics Exact sciences and technology Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Superconducting devices |
| title | High-Tc superconductive microwave filters |
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