Microwave power limiter based on high-Tc superconductive film

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Microwave power limiter based on high-Tc superconductive film

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A power limiter is designed with two resonant diaphragms included in an X-range rectangular waveguide. The cross strips made of high-Tc superconductive films placed in the centre of diaphragms can be in superconducting or normal states. The film state is controlled by the microwave power. The S-N transition in the strips causes a change of the transmitted wave attenuation from 0.5 to 25 dB.

Inspec keywords: microwave limiters; barium compounds; yttrium compounds; waveguide components; high-temperature superconductors

Other keywords: S-N transition; two resonant diaphragms; high temperature superconductors; X-band; high-Tc superconductive film; microwave power controlled transition; cross strips; HTS; microwave power limiter; YBaCuO films; 0.5 to 25 dB; transmitted wave attenuation; X-range rectangular waveguide; attenuation change

Subjects: Superconducting materials; Waveguide and microwave transmission line components; Perovskite phase and other high-temperature superconductors

References

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      • A. Fathy , D. Kalokitis , E. Belohoubek . Microwave characteristics and characterization of high-Tc superconductors. Microwave J. , 10 , 75 - 94
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      • Vendik, O.G., Gaidukov, M.M., Kozyrev, A.B., Kolesov, S.G.: `Superconducting linear microwave circuits', Proc. 18th European Microwave Conf., 1988, p. 27–37.
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      • O.G. Vendik , S.G. Kolesov , O.V. Pakhomov , A.S. Ruban . Influence of heat-sinking on the current-induced formation of a normal zone in wide film of niobium nitride. Zh. Tekh. Fiz. , 6 , 1198 - 1200
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      • O.G. Vendik , M.M. Gaidukov , A. Karpyuk . Waveguide switch of millimeter band on the base of superconducting films. Pis'ma Zh. Tekh. Fiz.
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      • O.G. Vendik , A.YA. Zaionchkovskii , S.G. Kolesov . Destruction and restoration of the superconducting state in niobium films by transport-current pulses. Fiz. Nizk. Temp. , 6 , 576 - 583
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      • E.E. Aksaev , E.M. Gershenzon , G.N. Goltsman . Interaction of electrons and thermal phonons in the YBa2Cu3Oy−δ films. Pis'ma Zh. Eksp. Teor. Fiz. , 5 , 254 - 257
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