PROJECT TITLE :
On-chip integration of HTS bandpass and lowpass filters with Josephson mixer
A compact high-Tc superconducting (HTS) monolithic downconverter is presented. The HTS passive and active devices are integrated on one single chip to attain compactness and high coupling efficiency. The downconverter consists of a HTS YBa2Cu3Oseven-x (YBCO) bandpass filter for RF input, a lowpass filter for IF output, and a self-pumped step-edge Josephson heterodyne mixer fabricated on a 20 ??10 mm MgO substrate. Characterisations of the HTS filters and the frequency response of the on-chip integrated downconverter are reported. The results demonstrate the potential of the HTS downconverter for applications in wireless communications.
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