Development of Low Loss Multipole RF Filters

摘要

During contract period, we have completed the technical objectives of this project. The highlights include: (1) Made, for the first time, 3-pole HTS filters in MHz range on 2-inch wafers. (2) Achieved an insertion loss of -0.7 dB and a return loss of -15 dB. (3) Invented an active switchable tuning method for turnable HTS filter. Overall, 2 papers have been published, 3 submitted, 5 conference papers presented and 3 patent applications submitted.