Answers are grounded in this paper and cite their sources.
In this paper, a new design of microstrip-line superconducting filters for IMT-2000 band application is presented. The design features high selectivity by means of creating transmission zeros and using many resonators. As a demonstration, 16- and 32-pole filters were fabricated using YBCO films on a half-area and on the full area of 3-in-diameter MgO wafers, respectively. Excellent attenuation of more than 30 dB, 420 kHz from the lower band edge, and 400 kHz from the upper band edge for the 32-pole filter was achieved. The filters were tuned not with mechanical tuning screws, but with a dielectric film. The tuning was carried out based on a novel method of measurement. These techniques are also described.
No takes yet. Share an insight, caveat, or question.
Tsuzuki et al. (2000) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: