Band-pass microstripe filters using high-temperature superconducting films
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Results are presented of a simulation and experimental investigation of band-pass filters consisting of coupled microstripe resonators fabricated using high-temperature superconducting films. It was shown that by using reliable models of high-temperature superconducting filter elements and careful design, it is possible to synthesize high-temperature superconducting filters as an integrated circuit without using additional tuning elements. Two filter configurations were investigated at a frequency of 1.75 GHz with a 4% pass band. A significant result is that the calculated and experimental characteristics of both filter configurations show very satisfactory agreement.
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