DOI: https://doi.org/10.3103/S0735272708100063
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An ultra high frequency wideband filter

V. M. Pan, V. F. Tarasov, S. I. Futimsky

Abstract


An ultra high frequency wideband filter was developed and fabricated. High-temperature superconductive film, sputtered in a sapphire substrate, was used as a resonator material. Loss in the filter pass band is 0.7 dB, the filter pass band is 165 MHz, its central frequency is 1877 MHz. The filter topology and amplitude-frequency responses are given.


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References


F. F. Mende and A. I. Spitsyn, Surface Impedance of Superconductors (Naukova Dumka, Kiev, 1985) [in Russian].

N. W. Newman and G. Lyons, “High-Temperature Microwave Devices: Fundamental Issues in Materials, Physics, and Engineering,” Journal of Superconductivity 6, No. 3, 119 (1933).

G. Matthaei, E.M.T. Jones, and L. Young, Microwave Filters, Impedance-Matching Networks, and Coupling Structures (McGraw-Hill, New York, 1964; Svyaz’, Moscow, 1971).

T. Itoh, Numerical Techniques for Microwave and Millimeter-Wave Passive Structures (Wiley, New York, 1989).







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