High temperature superconducting slow-wave coplanar transmission lines with normal-metal crossbars
| Autor: | Jon S. Martens, David S. Ginley, J.K. Truman, Chris P. Tigges, Thomas E. Zipperian, Vincent M. Hietala, T.A. Plut |
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| Rok vydání: | 1994 |
| Předmět: |
Radiation
Materials science business.industry Wave propagation Transmission loss Coplanar waveguide Electrical engineering Condensed Matter Physics Characteristic impedance Electric power transmission Transmission line Dispersion (optics) Group velocity Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 42:972-975 |
| ISSN: | 0018-9480 |
| Popis: | A novel superconducting slow-wave transmission line has been prepared by overlaying a superconducting coplanar waveguide with normal metal crossbars. The crossbars increase the energy storage along the transmission line, reducing the line's group velocity allowing for shorter delay lines. Additionally, the cross-sectional dimensions of the line are smaller than typical transmission line structures, allowing for a further reduction of delay line size. Measurements show a group velocity of about 0.12 the speed of light with low dispersion, a 25 /spl Omega/ characteristic impedance, and moderate transmission loss. Because the group velocity is largely independent of any properties of the superconductor, these transmission lines exhibit excellent temperature stability and delay reproducibility. > |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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